Mercurial > hg
annotate hgext/blackbox.py @ 36206:9ddc884e9a32
cmdutil: rewrite makefilename() to use ctx methods
author | Yuya Nishihara <yuya@tcha.org> |
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date | Thu, 02 Apr 2015 23:37:07 +0900 |
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))) |