Mercurial > hg
annotate hgext/blackbox.py @ 36360:c25290b98190
perfbranchmap: allow to select the filter to benchmark
Running the branchmap computation on all filter levels can be expensive.
Narrowing the run to some specific filters can speed up benchmarking time when
working only on a subset of filter levels.
author | Boris Feld <boris.feld@octobus.net> |
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date | Wed, 21 Feb 2018 11:43:12 +0100 |
parents | 05c70675e5b9 |
children | c6061cadb400 |
rev | line source |
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18676 | 1 # blackbox.py - log repository events to a file for post-mortem debugging |
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2 # |
18676 | 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. |
28246 | 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`. |
28246 | 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 |
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53 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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54 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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55 # be specifying the version(s) of Mercurial they are tested with, or |
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56 # leave the attribute unspecified. |
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57 testedwith = 'ships-with-hg-core' |
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58 |
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59 cmdtable = {} |
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60 command = registrar.command(cmdtable) |
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61 |
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62 configtable = {} |
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63 configitem = registrar.configitem(configtable) |
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64 |
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65 configitem('blackbox', 'dirty', |
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66 default=False, |
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67 ) |
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68 configitem('blackbox', 'maxsize', |
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69 default='1 MB', |
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70 ) |
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71 configitem('blackbox', 'logsource', |
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72 default=False, |
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73 ) |
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74 configitem('blackbox', 'maxfiles', |
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75 default=7, |
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76 ) |
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77 configitem('blackbox', 'track', |
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78 default=lambda: ['*'], |
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79 ) |
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80 |
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81 lastui = None |
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82 |
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83 def _openlogfile(ui, vfs): |
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84 def rotate(oldpath, newpath): |
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85 try: |
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86 vfs.unlink(newpath) |
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87 except OSError as err: |
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88 if err.errno != errno.ENOENT: |
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89 ui.debug("warning: cannot remove '%s': %s\n" % |
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90 (newpath, err.strerror)) |
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91 try: |
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92 if newpath: |
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93 vfs.rename(oldpath, newpath) |
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94 except OSError as err: |
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95 if err.errno != errno.ENOENT: |
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96 ui.debug("warning: cannot rename '%s' to '%s': %s\n" % |
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97 (newpath, oldpath, err.strerror)) |
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98 |
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99 maxsize = ui.configbytes('blackbox', 'maxsize') |
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100 name = 'blackbox.log' |
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101 if maxsize > 0: |
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102 try: |
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103 st = vfs.stat(name) |
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104 except OSError: |
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105 pass |
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106 else: |
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107 if st.st_size >= maxsize: |
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108 path = vfs.join(name) |
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109 maxfiles = ui.configint('blackbox', 'maxfiles') |
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110 for i in xrange(maxfiles - 1, 1, -1): |
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111 rotate(oldpath='%s.%d' % (path, i - 1), |
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112 newpath='%s.%d' % (path, i)) |
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113 rotate(oldpath=path, |
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114 newpath=maxfiles > 0 and path + '.1') |
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115 return vfs(name, 'a') |
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116 |
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117 def wrapui(ui): |
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118 class blackboxui(ui.__class__): |
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120 def _bbvfs(self): | |
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121 vfs = None |
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123 if repo: | |
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124 vfs = repo.vfs |
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125 if not vfs.isdir('.'): |
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126 vfs = None |
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127 return vfs |
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129 @util.propertycache |
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130 def track(self): |
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131 return self.configlist('blackbox', 'track') |
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132 |
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133 def debug(self, *msg, **opts): |
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134 super(blackboxui, self).debug(*msg, **opts) |
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135 if self.debugflag: |
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136 self.log('debug', '%s', ''.join(msg)) |
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137 |
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138 def log(self, event, *msg, **opts): |
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139 global lastui |
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140 super(blackboxui, self).log(event, *msg, **opts) |
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141 |
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142 if not '*' in self.track and not event in self.track: |
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143 return |
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144 |
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145 if self._bbvfs: |
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146 ui = self |
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147 else: |
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148 # certain ui instances exist outside the context of |
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149 # a repo, so just default to the last blackbox that |
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150 # was seen. |
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151 ui = lastui |
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152 |
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153 if not ui: |
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154 return |
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155 vfs = ui._bbvfs |
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156 if not vfs: |
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157 return |
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158 |
34274 | 159 repo = getattr(ui, '_bbrepo', None) |
160 if not lastui or repo: | |
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161 lastui = ui |
34274 | 162 if getattr(ui, '_bbinlog', False): |
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163 # recursion and failure guard |
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164 return |
34275 | 165 ui._bbinlog = True |
166 default = self.configdate('devel', 'default-date') | |
167 date = util.datestr(default, '%Y/%m/%d %H:%M:%S') | |
168 user = util.getuser() | |
169 pid = '%d' % util.getpid() | |
170 formattedmsg = msg[0] % msg[1:] | |
171 rev = '(unknown)' | |
172 changed = '' | |
173 if repo: | |
174 ctx = repo[None] | |
175 parents = ctx.parents() | |
176 rev = ('+'.join([hex(p.node()) for p in parents])) | |
177 if (ui.configbool('blackbox', 'dirty') and | |
178 ctx.dirty(missing=True, merge=False, branch=False)): | |
179 changed = '+' | |
180 if ui.configbool('blackbox', 'logsource'): | |
181 src = ' [%s]' % event | |
182 else: | |
183 src = '' | |
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184 try: |
34275 | 185 fmt = '%s %s @%s%s (%s)%s> %s' |
186 args = (date, user, rev, changed, pid, src, formattedmsg) | |
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187 with _openlogfile(ui, vfs) as fp: |
34275 | 188 fp.write(fmt % args) |
189 except (IOError, OSError) as err: | |
190 self.debug('warning: cannot write to blackbox.log: %s\n' % | |
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191 encoding.strtolocal(err.strerror)) |
34275 | 192 # do not restore _bbinlog intentionally to avoid failed |
193 # logging again | |
194 else: | |
195 ui._bbinlog = False | |
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196 |
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197 def setrepo(self, repo): |
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198 self._bbrepo = repo |
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199 |
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200 ui.__class__ = blackboxui |
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201 uimod.ui = blackboxui |
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202 |
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203 def uisetup(ui): |
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204 wrapui(ui) |
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205 |
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206 def reposetup(ui, repo): |
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207 # During 'hg pull' a httppeer repo is created to represent the remote repo. |
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208 # It doesn't have a .hg directory to put a blackbox in, so we don't do |
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209 # the blackbox setup for it. |
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210 if not repo.local(): |
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211 return |
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212 |
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213 if util.safehasattr(ui, 'setrepo'): |
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214 ui.setrepo(repo) |
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215 |
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216 # Set lastui even if ui.log is not called. This gives blackbox a |
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217 # fallback place to log. |
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218 global lastui |
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219 if lastui is None: |
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220 lastui = ui |
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221 |
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222 repo._wlockfreeprefix.add('blackbox.log') |
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223 |
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224 @command('^blackbox', |
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225 [('l', 'limit', 10, _('the number of events to show')), |
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226 ], |
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227 _('hg blackbox [OPTION]...')) |
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228 def blackbox(ui, repo, *revs, **opts): |
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229 '''view the recent repository events |
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230 ''' |
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231 |
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232 if not repo.vfs.exists('blackbox.log'): |
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233 return |
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234 |
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235 limit = opts.get(r'limit') |
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236 fp = repo.vfs('blackbox.log', 'r') |
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237 lines = fp.read().split('\n') |
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238 |
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239 count = 0 |
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240 output = [] |
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241 for line in reversed(lines): |
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242 if count >= limit: |
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243 break |
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244 |
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245 # count the commands by matching lines like: 2013/01/23 19:13:36 root> |
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246 if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line): |
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247 count += 1 |
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248 output.append(line) |
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249 |
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250 ui.status('\n'.join(reversed(output))) |