annotate hgext/blackbox.py @ 35445:b86f52426396

help: deprecate ui.slash in favor of slashpath template filter (issue5572) > For some reason, I thought someone (Mads?) said we had basically given > up on ui.slash, and some commands didn't support it. (from https://bz.mercurial-scm.org/show_bug.cgi?id=5572#c1) So the ui.slash option doesn't always work and is somewhat confusing. Let's make it clearer we won't improve the situation.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 21 Oct 2017 17:27:14 +0900
parents 375577785f49
children de598e84c244
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 registrar,
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48 ui as uimod,
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49 util,
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50 )
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51
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52 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
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53 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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54 # be specifying the version(s) of Mercurial they are tested with, or
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55 # leave the attribute unspecified.
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56 testedwith = 'ships-with-hg-core'
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57
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58 cmdtable = {}
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59 command = registrar.command(cmdtable)
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60
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61 configtable = {}
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62 configitem = registrar.configitem(configtable)
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63
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64 configitem('blackbox', 'dirty',
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65 default=False,
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66 )
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67 configitem('blackbox', 'maxsize',
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68 default='1 MB',
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69 )
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70 configitem('blackbox', 'logsource',
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71 default=False,
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72 )
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73 configitem('blackbox', 'maxfiles',
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74 default=7,
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75 )
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76 configitem('blackbox', 'track',
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77 default=lambda: ['*'],
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78 )
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79
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80 lastui = None
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81
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82 def _openlogfile(ui, vfs):
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83 def rotate(oldpath, newpath):
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84 try:
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85 vfs.unlink(newpath)
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86 except OSError as err:
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87 if err.errno != errno.ENOENT:
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88 ui.debug("warning: cannot remove '%s': %s\n" %
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89 (newpath, err.strerror))
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90 try:
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91 if newpath:
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92 vfs.rename(oldpath, newpath)
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93 except OSError as err:
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94 if err.errno != errno.ENOENT:
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95 ui.debug("warning: cannot rename '%s' to '%s': %s\n" %
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96 (newpath, oldpath, err.strerror))
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97
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98 maxsize = ui.configbytes('blackbox', 'maxsize')
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99 name = 'blackbox.log'
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100 if maxsize > 0:
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101 try:
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102 st = vfs.stat(name)
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103 except OSError:
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104 pass
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105 else:
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106 if st.st_size >= maxsize:
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107 path = vfs.join(name)
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108 maxfiles = ui.configint('blackbox', 'maxfiles')
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109 for i in xrange(maxfiles - 1, 1, -1):
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110 rotate(oldpath='%s.%d' % (path, i - 1),
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111 newpath='%s.%d' % (path, i))
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112 rotate(oldpath=path,
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113 newpath=maxfiles > 0 and path + '.1')
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114 return vfs(name, 'a')
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115
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116 def wrapui(ui):
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117 class blackboxui(ui.__class__):
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118 @property
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119 def _bbvfs(self):
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120 vfs = None
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121 repo = getattr(self, '_bbrepo', None)
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122 if repo:
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123 vfs = repo.vfs
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124 if not vfs.isdir('.'):
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125 vfs = None
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126 return vfs
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127
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128 @util.propertycache
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129 def track(self):
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130 return self.configlist('blackbox', 'track')
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131
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132 def log(self, event, *msg, **opts):
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133 global lastui
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134 super(blackboxui, self).log(event, *msg, **opts)
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135
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136 if not '*' in self.track and not event in self.track:
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137 return
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138
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139 if self._bbvfs:
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140 ui = self
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141 else:
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142 # certain ui instances exist outside the context of
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143 # a repo, so just default to the last blackbox that
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144 # was seen.
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145 ui = lastui
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146
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147 if not ui:
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148 return
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149 vfs = ui._bbvfs
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150 if not vfs:
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151 return
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diff changeset
152
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153 repo = getattr(ui, '_bbrepo', None)
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154 if not lastui or repo:
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155 lastui = ui
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156 if getattr(ui, '_bbinlog', False):
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157 # recursion and failure guard
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158 return
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159 ui._bbinlog = True
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160 default = self.configdate('devel', 'default-date')
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161 date = util.datestr(default, '%Y/%m/%d %H:%M:%S')
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162 user = util.getuser()
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163 pid = '%d' % util.getpid()
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164 formattedmsg = msg[0] % msg[1:]
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165 rev = '(unknown)'
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166 changed = ''
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167 if repo:
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168 ctx = repo[None]
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169 parents = ctx.parents()
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170 rev = ('+'.join([hex(p.node()) for p in parents]))
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171 if (ui.configbool('blackbox', 'dirty') and
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diff changeset
172 ctx.dirty(missing=True, merge=False, branch=False)):
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173 changed = '+'
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174 if ui.configbool('blackbox', 'logsource'):
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175 src = ' [%s]' % event
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176 else:
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177 src = ''
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178 try:
34275
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179 fmt = '%s %s @%s%s (%s)%s> %s'
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diff changeset
180 args = (date, user, rev, changed, pid, src, formattedmsg)
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181 with _openlogfile(ui, vfs) as fp:
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182 fp.write(fmt % args)
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183 except (IOError, OSError) as err:
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184 self.debug('warning: cannot write to blackbox.log: %s\n' %
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diff changeset
185 err.strerror)
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diff changeset
186 # do not restore _bbinlog intentionally to avoid failed
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187 # logging again
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diff changeset
188 else:
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diff changeset
189 ui._bbinlog = False
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190
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191 def setrepo(self, repo):
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192 self._bbrepo = repo
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diff changeset
193
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194 ui.__class__ = blackboxui
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diff changeset
195 uimod.ui = blackboxui
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196
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197 def uisetup(ui):
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198 wrapui(ui)
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199
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200 def reposetup(ui, repo):
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201 # During 'hg pull' a httppeer repo is created to represent the remote repo.
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diff changeset
202 # It doesn't have a .hg directory to put a blackbox in, so we don't do
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parents:
diff changeset
203 # the blackbox setup for it.
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diff changeset
204 if not repo.local():
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parents:
diff changeset
205 return
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parents:
diff changeset
206
19230
6d6f148cada9 blackbox: fix blackbox causing exceptions in tests
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diff changeset
207 if util.safehasattr(ui, 'setrepo'):
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diff changeset
208 ui.setrepo(repo)
34276
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diff changeset
209
b90bd9a98c8b blackbox: set lastui even if ui.log is not called (issue5518)
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diff changeset
210 # Set lastui even if ui.log is not called. This gives blackbox a
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diff changeset
211 # fallback place to log.
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diff changeset
212 global lastui
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diff changeset
213 if lastui is None:
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diff changeset
214 lastui = ui
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parents: 34275
diff changeset
215
33436
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Boris Feld <boris.feld@octobus.net>
parents: 33361
diff changeset
216 repo._wlockfreeprefix.add('blackbox.log')
18673
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diff changeset
217
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diff changeset
218 @command('^blackbox',
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diff changeset
219 [('l', 'limit', 10, _('the number of events to show')),
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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diff changeset
220 ],
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diff changeset
221 _('hg blackbox [OPTION]...'))
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diff changeset
222 def blackbox(ui, repo, *revs, **opts):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
223 '''view the recent repository events
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
224 '''
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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diff changeset
225
28026
a6db1163befa blackbox: refactor use of vfs as _bbvfs
timeless <timeless@mozdev.org>
parents: 28025
diff changeset
226 if not repo.vfs.exists('blackbox.log'):
18673
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parents: 18669
diff changeset
227 return
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parents: 18669
diff changeset
228
34972
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Pulkit Goyal <7895pulkit@gmail.com>
parents: 34745
diff changeset
229 limit = opts.get(r'limit')
28244
c17d7b1c40be blackbox: rename fp variable
timeless <timeless@mozdev.org>
parents: 28243
diff changeset
230 fp = repo.vfs('blackbox.log', 'r')
c17d7b1c40be blackbox: rename fp variable
timeless <timeless@mozdev.org>
parents: 28243
diff changeset
231 lines = fp.read().split('\n')
18673
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diff changeset
232
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
233 count = 0
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
234 output = []
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diff changeset
235 for line in reversed(lines):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
236 if count >= limit:
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
237 break
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diff changeset
238
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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diff changeset
239 # count the commands by matching lines like: 2013/01/23 19:13:36 root>
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
240 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
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parents: 18669
diff changeset
241 count += 1
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
242 output.append(line)
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
diff changeset
243
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
diff changeset
244 ui.status('\n'.join(reversed(output)))