Mercurial > hg
annotate hgext/blackbox.py @ 21708:2668a78df8ba stable
keyword: suppress keyword expansion while 'hg fetch' for internal merge
Before this patch, 'hg fetch' may cause unexpected conflict, if 'hg
fetch'-ed changes are located near lines in which keywords are
embedded, because keywords are substituted with other strings in the
working directory.
This patch suppresses keyword expansion while 'hg fetch' for internal
merge by adding 'fetch' to 'restricted' command list like 'merge'.
This patch uses 'hg import' to safely create the new head to be merged
at succeeding 'hg fetch', because:
- branch of revision #10 is different from one of #11 in 'Test'
repository, so just 'hg fetch -r 11' doesn't cause merging between
them
this means the new head should be created manually.
- 'hg import' is easier and safer than 'cat <<EOF' and 'hg commit'
to replay same changes including special characters like '$'
safeness of 'hg import' with keyword extension is already examined
in 'test-keyword.t'.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
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date | Thu, 05 Jun 2014 16:47:14 +0900 |
parents | 6d6f148cada9 |
children | 7cc77030c557 |
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. |
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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 testedwith = 'internal' |
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39 lastblackbox = None |
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40 |
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41 def wrapui(ui): |
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42 class blackboxui(ui.__class__): |
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43 @util.propertycache |
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44 def track(self): |
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45 return self.configlist('blackbox', 'track', ['*']) |
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46 |
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47 def _openlogfile(self): |
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48 def rotate(oldpath, newpath): |
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49 try: |
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50 os.unlink(newpath) |
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51 except OSError, err: |
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52 if err.errno != errno.ENOENT: |
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53 self.debug("warning: cannot remove '%s': %s\n" % |
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54 (newpath, err.strerror)) |
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55 try: |
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56 if newpath: |
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57 os.rename(oldpath, newpath) |
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58 except OSError, err: |
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59 if err.errno != errno.ENOENT: |
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60 self.debug("warning: cannot rename '%s' to '%s': %s\n" % |
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61 (newpath, oldpath, err.strerror)) |
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62 |
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63 fp = self._bbopener('blackbox.log', 'a') |
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64 maxsize = self.configbytes('blackbox', 'maxsize', 1048576) |
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65 if maxsize > 0: |
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66 st = os.fstat(fp.fileno()) |
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67 if st.st_size >= maxsize: |
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68 path = fp.name |
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69 fp.close() |
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70 maxfiles = self.configint('blackbox', 'maxfiles', 7) |
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71 for i in xrange(maxfiles - 1, 1, -1): |
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72 rotate(oldpath='%s.%d' % (path, i - 1), |
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73 newpath='%s.%d' % (path, i)) |
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74 rotate(oldpath=path, |
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75 newpath=maxfiles > 0 and path + '.1') |
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76 fp = self._bbopener('blackbox.log', 'a') |
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77 return fp |
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78 |
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79 def log(self, event, *msg, **opts): |
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80 global lastblackbox |
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81 super(blackboxui, self).log(event, *msg, **opts) |
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82 |
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83 if not '*' in self.track and not event in self.track: |
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84 return |
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85 |
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86 if util.safehasattr(self, '_blackbox'): |
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87 blackbox = self._blackbox |
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88 elif util.safehasattr(self, '_bbopener'): |
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89 try: |
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90 self._blackbox = self._openlogfile() |
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91 except (IOError, OSError), err: |
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92 self.debug('warning: cannot write to blackbox.log: %s\n' % |
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93 err.strerror) |
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94 del self._bbopener |
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95 self._blackbox = None |
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96 blackbox = self._blackbox |
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97 else: |
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98 # certain ui instances exist outside the context of |
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99 # a repo, so just default to the last blackbox that |
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100 # was seen. |
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101 blackbox = lastblackbox |
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102 |
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103 if blackbox: |
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104 date = util.datestr(None, '%Y/%m/%d %H:%M:%S') |
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105 user = util.getuser() |
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106 formattedmsg = msg[0] % msg[1:] |
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107 try: |
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108 blackbox.write('%s %s> %s' % (date, user, formattedmsg)) |
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109 except IOError, err: |
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110 self.debug('warning: cannot write to blackbox.log: %s\n' % |
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111 err.strerror) |
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112 lastblackbox = blackbox |
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113 |
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114 def setrepo(self, repo): |
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115 self._bbopener = repo.opener |
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116 |
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117 ui.__class__ = blackboxui |
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118 |
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119 def uisetup(ui): |
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120 wrapui(ui) |
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121 |
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122 def reposetup(ui, repo): |
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123 # During 'hg pull' a httppeer repo is created to represent the remote repo. |
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124 # It doesn't have a .hg directory to put a blackbox in, so we don't do |
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125 # the blackbox setup for it. |
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126 if not repo.local(): |
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127 return |
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128 |
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129 if util.safehasattr(ui, 'setrepo'): |
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130 ui.setrepo(repo) |
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131 |
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132 @command('^blackbox', |
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133 [('l', 'limit', 10, _('the number of events to show')), |
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134 ], |
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135 _('hg blackbox [OPTION]...')) |
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136 def blackbox(ui, repo, *revs, **opts): |
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137 '''view the recent repository events |
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138 ''' |
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139 |
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140 if not os.path.exists(repo.join('blackbox.log')): |
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141 return |
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142 |
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143 limit = opts.get('limit') |
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144 blackbox = repo.opener('blackbox.log', 'r') |
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145 lines = blackbox.read().split('\n') |
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146 |
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147 count = 0 |
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148 output = [] |
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149 for line in reversed(lines): |
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150 if count >= limit: |
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151 break |
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152 |
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153 # count the commands by matching lines like: 2013/01/23 19:13:36 root> |
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154 if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line): |
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155 count += 1 |
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156 output.append(line) |
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157 |
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158 ui.status('\n'.join(reversed(output))) |