annotate hgext/blackbox.py @ 26949:b639b2f186bf

merge.applyupdates: only attempt to merge files in mergeactions This only makes a difference when a merge driver is active -- in that case we don't want to try and merge all the files, just the ones still unresolved after the merge driver's preprocess step is over.
author Siddharth Agarwal <sid0@fb.com>
date Thu, 12 Nov 2015 14:29:02 -0800
parents e8f9dffca36f
children ab6468270b83
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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 Examples::
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14
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15 [blackbox]
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16 track = *
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17
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18 [blackbox]
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19 track = command, commandfinish, commandexception, exthook, pythonhook
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20
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21 [blackbox]
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22 track = incoming
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23
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24 [blackbox]
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25 # limit the size of a log file
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26 maxsize = 1.5 MB
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27 # rotate up to N log files when the current one gets too big
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28 maxfiles = 3
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29
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30 """
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31
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32 from mercurial import util, cmdutil
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33 from mercurial.i18n import _
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34 import errno, os, re
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35
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36 cmdtable = {}
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37 command = cmdutil.command(cmdtable)
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38 # Note for extension authors: ONLY specify testedwith = 'internal' for
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39 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
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40 # be specifying the version(s) of Mercurial they are tested with, or
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41 # leave the attribute unspecified.
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42 testedwith = 'internal'
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43 lastblackbox = None
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44
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45 def wrapui(ui):
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46 class blackboxui(ui.__class__):
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47 @util.propertycache
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48 def track(self):
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49 return self.configlist('blackbox', 'track', ['*'])
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50
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51 def _openlogfile(self):
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52 def rotate(oldpath, newpath):
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53 try:
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54 os.unlink(newpath)
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55 except OSError as err:
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56 if err.errno != errno.ENOENT:
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57 self.debug("warning: cannot remove '%s': %s\n" %
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58 (newpath, err.strerror))
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59 try:
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60 if newpath:
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61 os.rename(oldpath, newpath)
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62 except OSError as err:
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63 if err.errno != errno.ENOENT:
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64 self.debug("warning: cannot rename '%s' to '%s': %s\n" %
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65 (newpath, oldpath, err.strerror))
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66
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67 fp = self._bbopener('blackbox.log', 'a')
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68 maxsize = self.configbytes('blackbox', 'maxsize', 1048576)
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69 if maxsize > 0:
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70 st = os.fstat(fp.fileno())
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71 if st.st_size >= maxsize:
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72 path = fp.name
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73 fp.close()
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74 maxfiles = self.configint('blackbox', 'maxfiles', 7)
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75 for i in xrange(maxfiles - 1, 1, -1):
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76 rotate(oldpath='%s.%d' % (path, i - 1),
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77 newpath='%s.%d' % (path, i))
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78 rotate(oldpath=path,
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79 newpath=maxfiles > 0 and path + '.1')
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80 fp = self._bbopener('blackbox.log', 'a')
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81 return fp
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82
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83 def log(self, event, *msg, **opts):
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84 global lastblackbox
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85 super(blackboxui, self).log(event, *msg, **opts)
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86
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87 if not '*' in self.track and not event in self.track:
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88 return
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89
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90 if util.safehasattr(self, '_blackbox'):
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91 blackbox = self._blackbox
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92 elif util.safehasattr(self, '_bbopener'):
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93 try:
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94 self._blackbox = self._openlogfile()
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95 except (IOError, OSError) as err:
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96 self.debug('warning: cannot write to blackbox.log: %s\n' %
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97 err.strerror)
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98 del self._bbopener
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99 self._blackbox = None
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100 blackbox = self._blackbox
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101 else:
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102 # certain ui instances exist outside the context of
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103 # a repo, so just default to the last blackbox that
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104 # was seen.
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105 blackbox = lastblackbox
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106
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107 if blackbox:
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108 date = util.datestr(None, '%Y/%m/%d %H:%M:%S')
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109 user = util.getuser()
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110 pid = str(os.getpid())
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111 formattedmsg = msg[0] % msg[1:]
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112 try:
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113 blackbox.write('%s %s (%s)> %s' %
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114 (date, user, pid, formattedmsg))
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115 except IOError as err:
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116 self.debug('warning: cannot write to blackbox.log: %s\n' %
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117 err.strerror)
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118 lastblackbox = blackbox
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119
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120 def setrepo(self, repo):
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121 self._bbopener = repo.vfs
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122
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123 ui.__class__ = blackboxui
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124
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125 def uisetup(ui):
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126 wrapui(ui)
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127
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128 def reposetup(ui, repo):
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129 # During 'hg pull' a httppeer repo is created to represent the remote repo.
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130 # It doesn't have a .hg directory to put a blackbox in, so we don't do
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131 # the blackbox setup for it.
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132 if not repo.local():
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133 return
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134
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135 if util.safehasattr(ui, 'setrepo'):
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136 ui.setrepo(repo)
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137
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138 @command('^blackbox',
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139 [('l', 'limit', 10, _('the number of events to show')),
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140 ],
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141 _('hg blackbox [OPTION]...'))
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142 def blackbox(ui, repo, *revs, **opts):
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143 '''view the recent repository events
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144 '''
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145
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146 if not os.path.exists(repo.join('blackbox.log')):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
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147 return
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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148
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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149 limit = opts.get('limit')
23877
7cc77030c557 localrepo: remove all external users of localrepo.opener
Angel Ezquerra <angel.ezquerra@gmail.com>
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150 blackbox = repo.vfs('blackbox.log', 'r')
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f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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151 lines = blackbox.read().split('\n')
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
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152
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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153 count = 0
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
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154 output = []
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
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155 for line in reversed(lines):
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
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156 if count >= limit:
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
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157 break
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158
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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159 # 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>
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160 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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161 count += 1
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
Durham Goode <durham@fb.com>
parents: 18669
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162 output.append(line)
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
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163
f27598902007 blackbox: adds a 'blackbox' command for viewing recent logs
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parents: 18669
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164 ui.status('\n'.join(reversed(output)))