Mercurial > hg
annotate hgext/blackbox.py @ 33989:266192d4666b
tests: update test-inherit-mode to pass our import checker
author | Augie Fackler <raf@durin42.com> |
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date | Tue, 22 Aug 2017 17:15:09 -0400 |
parents | 9bb4decd43b0 |
children | 4f60720cf0df |
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 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 |
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74 lastui = None |
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75 |
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76 filehandles = {} |
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77 |
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78 def _openlog(vfs): |
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79 path = vfs.join('blackbox.log') |
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80 if path in filehandles: |
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81 return filehandles[path] |
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82 filehandles[path] = fp = vfs('blackbox.log', 'a') |
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83 return fp |
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84 |
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85 def _closelog(vfs): |
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86 path = vfs.join('blackbox.log') |
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87 fp = filehandles[path] |
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88 del filehandles[path] |
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89 fp.close() |
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90 |
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91 def wrapui(ui): |
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92 class blackboxui(ui.__class__): |
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93 def __init__(self, src=None): |
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94 super(blackboxui, self).__init__(src) |
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95 if src is None: |
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96 self._partialinit() |
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97 else: |
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98 self._bbfp = getattr(src, '_bbfp', None) |
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99 self._bbinlog = False |
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100 self._bbrepo = getattr(src, '_bbrepo', None) |
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101 self._bbvfs = getattr(src, '_bbvfs', None) |
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102 |
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103 def _partialinit(self): |
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104 if util.safehasattr(self, '_bbvfs'): |
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105 return |
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106 self._bbfp = None |
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107 self._bbinlog = False |
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108 self._bbrepo = None |
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109 self._bbvfs = None |
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110 |
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111 def copy(self): |
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112 self._partialinit() |
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113 return self.__class__(self) |
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114 |
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115 @util.propertycache |
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116 def track(self): |
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117 return self.configlist('blackbox', 'track', ['*']) |
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118 |
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119 def _openlogfile(self): |
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120 def rotate(oldpath, newpath): |
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121 try: |
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122 self._bbvfs.unlink(newpath) |
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123 except OSError as err: |
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124 if err.errno != errno.ENOENT: |
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125 self.debug("warning: cannot remove '%s': %s\n" % |
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126 (newpath, err.strerror)) |
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127 try: |
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128 if newpath: |
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129 self._bbvfs.rename(oldpath, newpath) |
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130 except OSError as err: |
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131 if err.errno != errno.ENOENT: |
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132 self.debug("warning: cannot rename '%s' to '%s': %s\n" % |
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133 (newpath, oldpath, err.strerror)) |
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134 |
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135 fp = _openlog(self._bbvfs) |
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136 maxsize = self.configbytes('blackbox', 'maxsize') |
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137 if maxsize > 0: |
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138 st = self._bbvfs.fstat(fp) |
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139 if st.st_size >= maxsize: |
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140 path = fp.name |
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141 _closelog(self._bbvfs) |
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142 maxfiles = self.configint('blackbox', 'maxfiles', 7) |
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143 for i in xrange(maxfiles - 1, 1, -1): |
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144 rotate(oldpath='%s.%d' % (path, i - 1), |
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145 newpath='%s.%d' % (path, i)) |
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146 rotate(oldpath=path, |
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147 newpath=maxfiles > 0 and path + '.1') |
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148 fp = _openlog(self._bbvfs) |
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149 return fp |
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150 |
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151 def _bbwrite(self, fmt, *args): |
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152 self._bbfp.write(fmt % args) |
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153 self._bbfp.flush() |
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154 |
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155 def log(self, event, *msg, **opts): |
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156 global lastui |
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157 super(blackboxui, self).log(event, *msg, **opts) |
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158 self._partialinit() |
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159 |
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160 if not '*' in self.track and not event in self.track: |
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161 return |
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162 |
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163 if self._bbfp: |
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164 ui = self |
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165 elif self._bbvfs: |
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166 try: |
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167 self._bbfp = self._openlogfile() |
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168 except (IOError, OSError) as err: |
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169 self.debug('warning: cannot write to blackbox.log: %s\n' % |
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170 err.strerror) |
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171 del self._bbvfs |
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172 self._bbfp = None |
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173 ui = self |
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174 else: |
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175 # certain ui instances exist outside the context of |
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176 # a repo, so just default to the last blackbox that |
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177 # was seen. |
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178 ui = lastui |
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179 |
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180 if not ui or not ui._bbfp: |
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181 return |
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182 if not lastui or ui._bbrepo: |
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183 lastui = ui |
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184 if ui._bbinlog: |
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185 # recursion guard |
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186 return |
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187 try: |
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188 ui._bbinlog = True |
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189 default = self.configdate('devel', 'default-date') |
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190 date = util.datestr(default, '%Y/%m/%d %H:%M:%S') |
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191 user = util.getuser() |
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192 pid = '%d' % util.getpid() |
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193 formattedmsg = msg[0] % msg[1:] |
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194 rev = '(unknown)' |
28246 | 195 changed = '' |
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196 if ui._bbrepo: |
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197 ctx = ui._bbrepo[None] |
28304 | 198 parents = ctx.parents() |
199 rev = ('+'.join([hex(p.node()) for p in parents])) | |
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200 if (ui.configbool('blackbox', 'dirty') and |
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201 ctx.dirty(missing=True, merge=False, branch=False)): |
28304 | 202 changed = '+' |
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203 if ui.configbool('blackbox', 'logsource'): |
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204 src = ' [%s]' % event |
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205 else: |
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206 src = '' |
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207 try: |
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208 ui._bbwrite('%s %s @%s%s (%s)%s> %s', |
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209 date, user, rev, changed, pid, src, formattedmsg) |
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210 except IOError as err: |
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211 self.debug('warning: cannot write to blackbox.log: %s\n' % |
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212 err.strerror) |
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213 finally: |
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214 ui._bbinlog = False |
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215 |
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216 def setrepo(self, repo): |
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217 self._bbfp = None |
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218 self._bbinlog = False |
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219 self._bbrepo = repo |
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220 self._bbvfs = repo.vfs |
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221 |
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222 ui.__class__ = blackboxui |
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223 uimod.ui = blackboxui |
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224 |
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225 def uisetup(ui): |
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226 wrapui(ui) |
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227 |
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228 def reposetup(ui, repo): |
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229 # During 'hg pull' a httppeer repo is created to represent the remote repo. |
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230 # It doesn't have a .hg directory to put a blackbox in, so we don't do |
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231 # the blackbox setup for it. |
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232 if not repo.local(): |
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233 return |
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234 |
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235 if util.safehasattr(ui, 'setrepo'): |
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236 ui.setrepo(repo) |
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237 repo._wlockfreeprefix.add('blackbox.log') |
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238 |
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239 @command('^blackbox', |
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240 [('l', 'limit', 10, _('the number of events to show')), |
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241 ], |
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242 _('hg blackbox [OPTION]...')) |
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243 def blackbox(ui, repo, *revs, **opts): |
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244 '''view the recent repository events |
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245 ''' |
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246 |
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247 if not repo.vfs.exists('blackbox.log'): |
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248 return |
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249 |
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250 limit = opts.get('limit') |
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251 fp = repo.vfs('blackbox.log', 'r') |
c17d7b1c40be
blackbox: rename fp variable
timeless <timeless@mozdev.org>
parents:
28243
diff
changeset
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252 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
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253 |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
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254 count = 0 |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
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255 output = [] |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
diff
changeset
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256 for line in reversed(lines): |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
diff
changeset
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257 if count >= limit: |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
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258 break |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
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259 |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
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260 # 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
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261 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
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262 count += 1 |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
diff
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263 output.append(line) |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
diff
changeset
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264 |
f27598902007
blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents:
18669
diff
changeset
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265 ui.status('\n'.join(reversed(output))) |