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@@ -1,115 +1,119 b'' | |||
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1 | 1 | # blackbox.py - log repository events to a file for post-mortem debugging |
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2 | 2 | # |
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3 | 3 | # Copyright 2010 Nicolas Dumazet |
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4 | 4 | # Copyright 2013 Facebook, Inc. |
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5 | 5 | # |
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6 | 6 | # This software may be used and distributed according to the terms of the |
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7 | 7 | # GNU General Public License version 2 or any later version. |
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8 | 8 | |
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9 | 9 | """log repository events to a blackbox for debugging |
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10 | 10 | |
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11 | 11 | Logs event information to .hg/blackbox.log to help debug and diagnose problems. |
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12 | 12 | The events that get logged can be configured via the blackbox.track config key. |
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13 | 13 | Examples: |
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14 | 14 | |
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15 | 15 | [blackbox] |
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16 | 16 | track = * |
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17 | 17 | |
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18 | 18 | [blackbox] |
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19 | 19 | track = command, commandfinish, commandexception, exthook, pythonhook |
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20 | 20 | |
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21 | 21 | [blackbox] |
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22 | 22 | track = incoming |
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23 | 23 | |
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24 | 24 | """ |
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25 | 25 | |
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26 | 26 | from mercurial import util, cmdutil |
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27 | 27 | from mercurial.i18n import _ |
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28 | 28 | import os, re |
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29 | 29 | |
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30 | 30 | cmdtable = {} |
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31 | 31 | command = cmdutil.command(cmdtable) |
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32 | 32 | testedwith = 'internal' |
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33 | 33 | lastblackbox = None |
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34 | 34 | |
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35 | 35 | def wrapui(ui): |
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36 | 36 | class blackboxui(ui.__class__): |
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37 | 37 | @util.propertycache |
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38 | 38 | def track(self): |
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39 | 39 | return ui.configlist('blackbox', 'track', ['*']) |
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40 | 40 | |
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41 | 41 | def log(self, event, *msg, **opts): |
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42 | 42 | global lastblackbox |
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43 | 43 | super(blackboxui, self).log(event, *msg, **opts) |
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44 | 44 | |
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45 | 45 | if not '*' in self.track and not event in self.track: |
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46 | 46 | return |
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47 | 47 | |
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48 | 48 | if util.safehasattr(self, '_blackbox'): |
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49 | 49 | blackbox = self._blackbox |
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50 | elif util.safehasattr(self, '_bbopener'): | |
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51 | try: | |
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52 | self._blackbox = self._bbopener('blackbox.log', 'a') | |
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53 | except (IOError, OSError), err: | |
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54 | self.debug('warning: cannot write to blackbox.log: %s\n' % | |
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55 | err.strerror) | |
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56 | del self._bbopener | |
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57 | self._blackbox = None | |
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58 | blackbox = self._blackbox | |
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50 | 59 | else: |
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51 | 60 | # certain ui instances exist outside the context of |
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52 | 61 | # a repo, so just default to the last blackbox that |
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53 | 62 | # was seen. |
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54 | 63 | blackbox = lastblackbox |
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55 | 64 | |
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56 | 65 | if blackbox: |
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57 | 66 | date = util.datestr(None, '%Y/%m/%d %H:%M:%S') |
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58 | 67 | user = util.getuser() |
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59 | 68 | formattedmsg = msg[0] % msg[1:] |
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60 | 69 | try: |
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61 | 70 | blackbox.write('%s %s> %s' % (date, user, formattedmsg)) |
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62 | 71 | except IOError, err: |
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63 | 72 | self.debug('warning: cannot write to blackbox.log: %s\n' % |
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64 | 73 | err.strerror) |
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65 | 74 | lastblackbox = blackbox |
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66 | 75 | |
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67 | 76 | def setrepo(self, repo): |
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68 | try: | |
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69 | self._blackbox = repo.opener('blackbox.log', 'a') | |
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70 | except (IOError, OSError), err: | |
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71 | self.debug('warning: cannot write to blackbox.log: %s\n' % | |
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72 | err.strerror) | |
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73 | self._blackbox = None | |
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77 | self._bbopener = repo.opener | |
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74 | 78 | |
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75 | 79 | ui.__class__ = blackboxui |
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76 | 80 | |
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77 | 81 | def uisetup(ui): |
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78 | 82 | wrapui(ui) |
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79 | 83 | |
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80 | 84 | def reposetup(ui, repo): |
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81 | 85 | # During 'hg pull' a httppeer repo is created to represent the remote repo. |
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82 | 86 | # It doesn't have a .hg directory to put a blackbox in, so we don't do |
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83 | 87 | # the blackbox setup for it. |
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84 | 88 | if not repo.local(): |
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85 | 89 | return |
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86 | 90 | |
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87 | 91 | ui.setrepo(repo) |
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88 | 92 | |
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89 | 93 | @command('^blackbox', |
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90 | 94 | [('l', 'limit', 10, _('the number of events to show')), |
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91 | 95 | ], |
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92 | 96 | _('hg blackbox [OPTION]...')) |
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93 | 97 | def blackbox(ui, repo, *revs, **opts): |
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94 | 98 | '''view the recent repository events |
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95 | 99 | ''' |
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96 | 100 | |
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97 | 101 | if not os.path.exists(repo.join('blackbox.log')): |
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98 | 102 | return |
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99 | 103 | |
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100 | 104 | limit = opts.get('limit') |
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101 | 105 | blackbox = repo.opener('blackbox.log', 'r') |
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102 | 106 | lines = blackbox.read().split('\n') |
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103 | 107 | |
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104 | 108 | count = 0 |
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105 | 109 | output = [] |
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106 | 110 | for line in reversed(lines): |
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107 | 111 | if count >= limit: |
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108 | 112 | break |
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109 | 113 | |
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110 | 114 | # count the commands by matching lines like: 2013/01/23 19:13:36 root> |
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111 | 115 | if re.match('^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} .*> .*', line): |
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112 | 116 | count += 1 |
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113 | 117 | output.append(line) |
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114 | 118 | |
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115 | 119 | ui.status('\n'.join(reversed(output))) |
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