Mercurial > hg
annotate hgext/blackbox.py @ 41098:cfd95219102d
strip: move attributes shortcut assigned earlier
This series will add support for "soft" stripping using the archived phase in
addition to the usual heavy weight revlog stripping. First, we need to
refactor the strip function to extract logic common to the "soft-strip" case.
We are about to extract bits of the strip function into separate functions.
Those blocks of code contain variables for frequently accessed attributes. We
move those variables outside of the soon to be moved blocks.
author | Boris Feld <boris.feld@octobus.net> |
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date | Wed, 02 Jan 2019 05:02:25 +0100 |
parents | 49d48489a16b |
children | 876494fd967d |
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 [blackbox] |
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37 # Include nanoseconds in log entries with %f (see Python function |
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38 # datetime.datetime.strftime) |
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39 date-format = '%Y-%m-%d @ %H:%M:%S.%f' |
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40 |
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41 """ |
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42 |
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43 from __future__ import absolute_import |
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44 |
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45 import re |
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46 |
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47 from mercurial.i18n import _ |
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48 from mercurial.node import hex |
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49 |
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50 from mercurial import ( |
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51 encoding, |
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52 loggingutil, |
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53 registrar, |
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54 ) |
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55 from mercurial.utils import ( |
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56 dateutil, |
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57 procutil, |
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58 ) |
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59 |
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60 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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61 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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62 # be specifying the version(s) of Mercurial they are tested with, or |
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63 # leave the attribute unspecified. |
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64 testedwith = 'ships-with-hg-core' |
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65 |
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66 cmdtable = {} |
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67 command = registrar.command(cmdtable) |
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68 |
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69 configtable = {} |
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70 configitem = registrar.configitem(configtable) |
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71 |
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72 configitem('blackbox', 'dirty', |
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73 default=False, |
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74 ) |
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75 configitem('blackbox', 'maxsize', |
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76 default='1 MB', |
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77 ) |
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78 configitem('blackbox', 'logsource', |
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79 default=False, |
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80 ) |
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81 configitem('blackbox', 'maxfiles', |
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82 default=7, |
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83 ) |
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84 configitem('blackbox', 'track', |
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85 default=lambda: ['*'], |
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86 ) |
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87 configitem('blackbox', 'date-format', |
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88 default='%Y/%m/%d %H:%M:%S', |
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89 ) |
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90 |
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91 _lastlogger = loggingutil.proxylogger() |
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92 |
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93 class blackboxlogger(object): |
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94 def __init__(self, ui, repo): |
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95 self._repo = repo |
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96 self._trackedevents = set(ui.configlist('blackbox', 'track')) |
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97 self._maxfiles = ui.configint('blackbox', 'maxfiles') |
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98 self._maxsize = ui.configbytes('blackbox', 'maxsize') |
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99 self._inlog = False |
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100 |
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101 def tracked(self, event): |
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102 return b'*' in self._trackedevents or event in self._trackedevents |
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103 |
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104 def log(self, ui, event, msg, opts): |
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105 # self._log() -> ctx.dirty() may create new subrepo instance, which |
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106 # ui is derived from baseui. So the recursion guard in ui.log() |
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107 # doesn't work as it's local to the ui instance. |
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108 if self._inlog: |
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109 return |
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110 self._inlog = True |
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111 try: |
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112 self._log(ui, event, msg, opts) |
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113 finally: |
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114 self._inlog = False |
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115 |
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116 def _log(self, ui, event, msg, opts): |
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117 default = ui.configdate('devel', 'default-date') |
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118 date = dateutil.datestr(default, ui.config('blackbox', 'date-format')) |
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119 user = procutil.getuser() |
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120 pid = '%d' % procutil.getpid() |
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121 rev = '(unknown)' |
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122 changed = '' |
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123 ctx = self._repo[None] |
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124 parents = ctx.parents() |
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125 rev = ('+'.join([hex(p.node()) for p in parents])) |
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126 if (ui.configbool('blackbox', 'dirty') and |
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127 ctx.dirty(missing=True, merge=False, branch=False)): |
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128 changed = '+' |
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129 if ui.configbool('blackbox', 'logsource'): |
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130 src = ' [%s]' % event |
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131 else: |
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132 src = '' |
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133 try: |
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134 fmt = '%s %s @%s%s (%s)%s> %s' |
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135 args = (date, user, rev, changed, pid, src, msg) |
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136 with loggingutil.openlogfile( |
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137 ui, self._repo.vfs, name='blackbox.log', |
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138 maxfiles=self._maxfiles, maxsize=self._maxsize) as fp: |
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139 fp.write(fmt % args) |
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140 except (IOError, OSError) as err: |
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141 # deactivate this to avoid failed logging again |
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142 self._trackedevents.clear() |
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143 ui.debug('warning: cannot write to blackbox.log: %s\n' % |
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144 encoding.strtolocal(err.strerror)) |
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145 return |
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146 _lastlogger.logger = self |
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147 |
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148 def uipopulate(ui): |
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149 ui.setlogger(b'blackbox', _lastlogger) |
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150 |
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151 def reposetup(ui, repo): |
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152 # During 'hg pull' a httppeer repo is created to represent the remote repo. |
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153 # It doesn't have a .hg directory to put a blackbox in, so we don't do |
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154 # the blackbox setup for it. |
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155 if not repo.local(): |
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156 return |
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157 |
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158 # Since blackbox.log is stored in the repo directory, the logger should be |
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159 # instantiated per repository. |
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160 logger = blackboxlogger(ui, repo) |
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161 ui.setlogger(b'blackbox', logger) |
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162 |
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163 # Set _lastlogger even if ui.log is not called. This gives blackbox a |
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164 # fallback place to log |
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165 if _lastlogger.logger is None: |
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166 _lastlogger.logger = logger |
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167 |
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168 repo._wlockfreeprefix.add('blackbox.log') |
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169 |
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170 @command('blackbox', |
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171 [('l', 'limit', 10, _('the number of events to show')), |
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172 ], |
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173 _('hg blackbox [OPTION]...'), |
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174 helpcategory=command.CATEGORY_MAINTENANCE, |
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175 helpbasic=True) |
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176 def blackbox(ui, repo, *revs, **opts): |
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177 '''view the recent repository events |
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178 ''' |
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179 |
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180 if not repo.vfs.exists('blackbox.log'): |
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181 return |
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182 |
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183 limit = opts.get(r'limit') |
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184 fp = repo.vfs('blackbox.log', 'r') |
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185 lines = fp.read().split('\n') |
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186 |
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187 count = 0 |
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188 output = [] |
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189 for line in reversed(lines): |
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190 if count >= limit: |
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191 break |
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192 |
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193 # count the commands by matching lines like: 2013/01/23 19:13:36 root> |
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194 if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line): |
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195 count += 1 |
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196 output.append(line) |
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197 |
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198 ui.status('\n'.join(reversed(output))) |