annotate hgext/blackbox.py @ 36729:389b950f5190

py3: use startswith() instead of slicing to detect leading whitespace
author Yuya Nishihara <yuya@tcha.org>
date Sun, 04 Mar 2018 15:24:45 -0500
parents c6061cadb400
children a8a902d7176e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # blackbox.py - log repository events to a file for post-mortem debugging
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2 #
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3 # Copyright 2010 Nicolas Dumazet
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4 # Copyright 2013 Facebook, Inc.
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5 #
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6 # This software may be used and distributed according to the terms of the
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7 # GNU General Public License version 2 or any later version.
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8
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9 """log repository events to a blackbox for debugging
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10
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11 Logs event information to .hg/blackbox.log to help debug and diagnose problems.
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12 The events that get logged can be configured via the blackbox.track config key.
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13
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14 Examples::
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15
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16 [blackbox]
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17 track = *
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18 # dirty is *EXPENSIVE* (slow);
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19 # each log entry indicates `+` if the repository is dirty, like :hg:`id`.
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20 dirty = True
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21 # record the source of log messages
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22 logsource = True
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23
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24 [blackbox]
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25 track = command, commandfinish, commandexception, exthook, pythonhook
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26
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27 [blackbox]
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28 track = incoming
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29
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30 [blackbox]
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31 # limit the size of a log file
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32 maxsize = 1.5 MB
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33 # rotate up to N log files when the current one gets too big
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34 maxfiles = 3
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35
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36 """
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37
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38 from __future__ import absolute_import
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39
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40 import errno
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41 import re
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42
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43 from mercurial.i18n import _
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44 from mercurial.node import hex
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45
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46 from mercurial import (
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47 encoding,
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48 registrar,
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49 ui as uimod,
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50 util,
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51 )
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52 from mercurial.utils import dateutil
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53
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54 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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55 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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56 # be specifying the version(s) of Mercurial they are tested with, or
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57 # leave the attribute unspecified.
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58 testedwith = 'ships-with-hg-core'
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59
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60 cmdtable = {}
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61 command = registrar.command(cmdtable)
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62
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63 configtable = {}
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64 configitem = registrar.configitem(configtable)
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65
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66 configitem('blackbox', 'dirty',
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67 default=False,
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68 )
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69 configitem('blackbox', 'maxsize',
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70 default='1 MB',
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71 )
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72 configitem('blackbox', 'logsource',
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73 default=False,
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74 )
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75 configitem('blackbox', 'maxfiles',
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76 default=7,
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77 )
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78 configitem('blackbox', 'track',
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79 default=lambda: ['*'],
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80 )
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81
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82 lastui = None
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83
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84 def _openlogfile(ui, vfs):
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85 def rotate(oldpath, newpath):
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86 try:
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87 vfs.unlink(newpath)
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88 except OSError as err:
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89 if err.errno != errno.ENOENT:
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90 ui.debug("warning: cannot remove '%s': %s\n" %
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91 (newpath, err.strerror))
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92 try:
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93 if newpath:
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94 vfs.rename(oldpath, newpath)
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95 except OSError as err:
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96 if err.errno != errno.ENOENT:
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97 ui.debug("warning: cannot rename '%s' to '%s': %s\n" %
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98 (newpath, oldpath, err.strerror))
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99
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100 maxsize = ui.configbytes('blackbox', 'maxsize')
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101 name = 'blackbox.log'
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102 if maxsize > 0:
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103 try:
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104 st = vfs.stat(name)
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105 except OSError:
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106 pass
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107 else:
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108 if st.st_size >= maxsize:
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109 path = vfs.join(name)
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110 maxfiles = ui.configint('blackbox', 'maxfiles')
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111 for i in xrange(maxfiles - 1, 1, -1):
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112 rotate(oldpath='%s.%d' % (path, i - 1),
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113 newpath='%s.%d' % (path, i))
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114 rotate(oldpath=path,
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115 newpath=maxfiles > 0 and path + '.1')
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116 return vfs(name, 'a')
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117
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118 def wrapui(ui):
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119 class blackboxui(ui.__class__):
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120 @property
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121 def _bbvfs(self):
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122 vfs = None
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123 repo = getattr(self, '_bbrepo', None)
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124 if repo:
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125 vfs = repo.vfs
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126 if not vfs.isdir('.'):
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127 vfs = None
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128 return vfs
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129
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130 @util.propertycache
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131 def track(self):
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132 return self.configlist('blackbox', 'track')
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133
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134 def debug(self, *msg, **opts):
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135 super(blackboxui, self).debug(*msg, **opts)
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136 if self.debugflag:
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137 self.log('debug', '%s', ''.join(msg))
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138
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139 def log(self, event, *msg, **opts):
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140 global lastui
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141 super(blackboxui, self).log(event, *msg, **opts)
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142
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143 if not '*' in self.track and not event in self.track:
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
144 return
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
145
34109
cf04db16f583 blackbox: do not cache file objects
Jun Wu <quark@fb.com>
parents: 34108
diff changeset
146 if self._bbvfs:
28247
d2c0527af364 blackbox: store the blackbox ui object instead of the log file
timeless <timeless@mozdev.org>
parents: 28246
diff changeset
147 ui = self
18669
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
148 else:
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
149 # certain ui instances exist outside the context of
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
150 # a repo, so just default to the last blackbox that
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
151 # was seen.
28247
d2c0527af364 blackbox: store the blackbox ui object instead of the log file
timeless <timeless@mozdev.org>
parents: 28246
diff changeset
152 ui = lastui
18669
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
153
34109
cf04db16f583 blackbox: do not cache file objects
Jun Wu <quark@fb.com>
parents: 34108
diff changeset
154 if not ui:
28407
63da8bd0c65e blackbox: guard against recursion from dirty check
timeless <timeless@mozdev.org>
parents: 28305
diff changeset
155 return
34299
b1d4ac068961 blackbox: do not prevent 'chg init' from working
Jun Wu <quark@fb.com>
parents: 34276
diff changeset
156 vfs = ui._bbvfs
b1d4ac068961 blackbox: do not prevent 'chg init' from working
Jun Wu <quark@fb.com>
parents: 34276
diff changeset
157 if not vfs:
b1d4ac068961 blackbox: do not prevent 'chg init' from working
Jun Wu <quark@fb.com>
parents: 34276
diff changeset
158 return
b1d4ac068961 blackbox: do not prevent 'chg init' from working
Jun Wu <quark@fb.com>
parents: 34276
diff changeset
159
34274
a37e18b5f055 blackbox: simplify ui states
Jun Wu <quark@fb.com>
parents: 34110
diff changeset
160 repo = getattr(ui, '_bbrepo', None)
a37e18b5f055 blackbox: simplify ui states
Jun Wu <quark@fb.com>
parents: 34110
diff changeset
161 if not lastui or repo:
28407
63da8bd0c65e blackbox: guard against recursion from dirty check
timeless <timeless@mozdev.org>
parents: 28305
diff changeset
162 lastui = ui
34274
a37e18b5f055 blackbox: simplify ui states
Jun Wu <quark@fb.com>
parents: 34110
diff changeset
163 if getattr(ui, '_bbinlog', False):
34109
cf04db16f583 blackbox: do not cache file objects
Jun Wu <quark@fb.com>
parents: 34108
diff changeset
164 # recursion and failure guard
28407
63da8bd0c65e blackbox: guard against recursion from dirty check
timeless <timeless@mozdev.org>
parents: 28305
diff changeset
165 return
34275
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
166 ui._bbinlog = True
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
167 default = self.configdate('devel', 'default-date')
36607
c6061cadb400 util: extract all date-related utils in utils/dateutil module
Boris Feld <boris.feld@octobus.net>
parents: 35727
diff changeset
168 date = dateutil.datestr(default, '%Y/%m/%d %H:%M:%S')
34275
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
169 user = util.getuser()
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
170 pid = '%d' % util.getpid()
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
171 formattedmsg = msg[0] % msg[1:]
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
172 rev = '(unknown)'
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
173 changed = ''
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
174 if repo:
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
175 ctx = repo[None]
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
176 parents = ctx.parents()
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
177 rev = ('+'.join([hex(p.node()) for p in parents]))
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
178 if (ui.configbool('blackbox', 'dirty') and
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
179 ctx.dirty(missing=True, merge=False, branch=False)):
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
180 changed = '+'
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
181 if ui.configbool('blackbox', 'logsource'):
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
182 src = ' [%s]' % event
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
183 else:
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
184 src = ''
28407
63da8bd0c65e blackbox: guard against recursion from dirty check
timeless <timeless@mozdev.org>
parents: 28305
diff changeset
185 try:
34275
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
186 fmt = '%s %s @%s%s (%s)%s> %s'
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
187 args = (date, user, rev, changed, pid, src, formattedmsg)
34300
e6723c939344 blackbox: move _openlogfile to a separate method
Jun Wu <quark@fb.com>
parents: 34299
diff changeset
188 with _openlogfile(ui, vfs) as fp:
34275
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
189 fp.write(fmt % args)
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
190 except (IOError, OSError) as err:
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
191 self.debug('warning: cannot write to blackbox.log: %s\n' %
35667
de598e84c244 py3: cast error message to localstr in blackbox.py
Gregory Szorc <gregory.szorc@gmail.com>
parents: 34972
diff changeset
192 encoding.strtolocal(err.strerror))
34275
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
193 # do not restore _bbinlog intentionally to avoid failed
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
194 # logging again
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
195 else:
86a5df995880 blackbox: unindent a try block
Jun Wu <quark@fb.com>
parents: 34274
diff changeset
196 ui._bbinlog = False
18669
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
197
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
198 def setrepo(self, repo):
28248
851c41a21869 blackbox: properly replace ui class
timeless <timeless@mozdev.org>
parents: 28247
diff changeset
199 self._bbrepo = repo
18669
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
200
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
201 ui.__class__ = blackboxui
28248
851c41a21869 blackbox: properly replace ui class
timeless <timeless@mozdev.org>
parents: 28247
diff changeset
202 uimod.ui = blackboxui
18669
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
203
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
204 def uisetup(ui):
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
205 wrapui(ui)
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
206
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
207 def reposetup(ui, repo):
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
208 # During 'hg pull' a httppeer repo is created to represent the remote repo.
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
209 # It doesn't have a .hg directory to put a blackbox in, so we don't do
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
210 # the blackbox setup for it.
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
211 if not repo.local():
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
212 return
18242716a014 blackbox: adds a blackbox extension
Durham Goode <durham@fb.com>
parents:
diff changeset
213
19230
6d6f148cada9 blackbox: fix blackbox causing exceptions in tests
Durham Goode <durham@fb.com>
parents: 19162
diff changeset
214 if util.safehasattr(ui, 'setrepo'):
6d6f148cada9 blackbox: fix blackbox causing exceptions in tests
Durham Goode <durham@fb.com>
parents: 19162
diff changeset
215 ui.setrepo(repo)
34276
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
216
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
217 # Set lastui even if ui.log is not called. This gives blackbox a
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
218 # fallback place to log.
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
219 global lastui
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
220 if lastui is None:
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
221 lastui = ui
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
Jun Wu <quark@fb.com>
parents: 34275
diff changeset
222
33436
9bb4decd43b0 repovfs: add a ward to check if locks are properly taken
Boris Feld <boris.feld@octobus.net>
parents: 33361
diff changeset
223 repo._wlockfreeprefix.add('blackbox.log')
18673
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
224
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
225 @command('^blackbox',
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
226 [('l', 'limit', 10, _('the number of events to show')),
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
227 ],
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
228 _('hg blackbox [OPTION]...'))
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
229 def blackbox(ui, repo, *revs, **opts):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
230 '''view the recent repository events
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
231 '''
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
232
28026
a6db1163befa blackbox: refactor use of vfs as _bbvfs
timeless <timeless@mozdev.org>
parents: 28025
diff changeset
233 if not repo.vfs.exists('blackbox.log'):
18673
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
234 return
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
235
34972
375577785f49 py3: handle keyword arguments in hgext/blackbox.py
Pulkit Goyal <7895pulkit@gmail.com>
parents: 34745
diff changeset
236 limit = opts.get(r'limit')
28244
c17d7b1c40be blackbox: rename fp variable
timeless <timeless@mozdev.org>
parents: 28243
diff changeset
237 fp = repo.vfs('blackbox.log', 'r')
c17d7b1c40be blackbox: rename fp variable
timeless <timeless@mozdev.org>
parents: 28243
diff changeset
238 lines = fp.read().split('\n')
18673
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
239
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
240 count = 0
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
241 output = []
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
242 for line in reversed(lines):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
243 if count >= limit:
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
244 break
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
245
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
246 # count the commands by matching lines like: 2013/01/23 19:13:36 root>
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
247 if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
248 count += 1
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
249 output.append(line)
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
250
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
251 ui.status('\n'.join(reversed(output)))