Mercurial > public > mercurial-scm > hg

annotate hgext/fastannotate/commands.py @ 48118:5105a9975407

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
errors: raise InputError from revsingle() iff revset provided by the user Same reasoning as for `revrange()` in an earlier patch. Differential Revision: https://phab.mercurial-scm.org/D11562
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 28 Sep 2021 15:11:22 -0700
parents 9d2b2df2c2ba
children 6000f5b25c9b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # Copyright 2016-present Facebook. All Rights Reserved.
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2 #
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3 # commands: fastannotate commands
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import os
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11
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12 from mercurial.i18n import _
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13 from mercurial import (
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14 commands,
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15 encoding,
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16 error,
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17 extensions,
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18 logcmdutil,
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19 patch,
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20 pycompat,
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21 registrar,
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22 scmutil,
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23 util,
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24 )
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25
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26 from . import (
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27 context as facontext,
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28 error as faerror,
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29 formatter as faformatter,
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30 )
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31
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32 cmdtable = {}
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33 command = registrar.command(cmdtable)
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34
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35
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36 def _matchpaths(repo, rev, pats, opts, aopts=facontext.defaultopts):
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37 """generate paths matching given patterns"""
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38 perfhack = repo.ui.configbool(b'fastannotate', b'perfhack')
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39
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40 # disable perfhack if:
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41 # a) any walkopt is used
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42 # b) if we treat pats as plain file names, some of them do not have
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43 # corresponding linelog files
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44 if perfhack:
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45 # cwd related to reporoot
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46 reporoot = os.path.dirname(repo.path)
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47 reldir = os.path.relpath(encoding.getcwd(), reporoot)
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48 if reldir == b'.':
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49 reldir = b''
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50 if any(opts.get(o[1]) for o in commands.walkopts): # a)
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51 perfhack = False
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52 else: # b)
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53 relpats = [
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54 os.path.relpath(p, reporoot) if os.path.isabs(p) else p
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55 for p in pats
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56 ]
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57 # disable perfhack on '..' since it allows escaping from the repo
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58 if any(
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59 (
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60 b'..' in f
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61 or not os.path.isfile(
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62 facontext.pathhelper(repo, f, aopts).linelogpath
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63 )
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64 )
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65 for f in relpats
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66 ):
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67 perfhack = False
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68
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69 # perfhack: emit paths directory without checking with manifest
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70 # this can be incorrect if the rev dos not have file.
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71 if perfhack:
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72 for p in relpats:
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73 yield os.path.join(reldir, p)
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74 else:
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75
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76 def bad(x, y):
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77 raise error.Abort(b"%s: %s" % (x, y))
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78
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79 ctx = logcmdutil.revsingle(repo, rev)
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80 m = scmutil.match(ctx, pats, opts, badfn=bad)
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81 for p in ctx.walk(m):
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82 yield p
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83
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84
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85 fastannotatecommandargs = {
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86 'options': [
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87 (b'r', b'rev', b'.', _(b'annotate the specified revision'), _(b'REV')),
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88 (b'u', b'user', None, _(b'list the author (long with -v)')),
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89 (b'f', b'file', None, _(b'list the filename')),
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90 (b'd', b'date', None, _(b'list the date (short with -q)')),
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91 (b'n', b'number', None, _(b'list the revision number (default)')),
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92 (b'c', b'changeset', None, _(b'list the changeset')),
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93 (
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94 b'l',
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95 b'line-number',
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96 None,
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97 _(b'show line number at the first appearance'),
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98 ),
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99 (
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100 b'e',
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101 b'deleted',
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102 None,
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103 _(b'show deleted lines (slow) (EXPERIMENTAL)'),
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104 ),
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105 (
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106 b'',
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107 b'no-content',
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108 None,
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109 _(b'do not show file content (EXPERIMENTAL)'),
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110 ),
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111 (b'', b'no-follow', None, _(b"don't follow copies and renames")),
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112 (
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113 b'',
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114 b'linear',
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115 None,
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116 _(
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117 b'enforce linear history, ignore second parent '
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118 b'of merges (EXPERIMENTAL)'
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119 ),
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120 ),
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121 (
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122 b'',
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123 b'long-hash',
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124 None,
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125 _(b'show long changeset hash (EXPERIMENTAL)'),
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126 ),
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127 (
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128 b'',
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129 b'rebuild',
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130 None,
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131 _(b'rebuild cache even if it exists (EXPERIMENTAL)'),
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132 ),
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133 ]
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134 + commands.diffwsopts
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135 + commands.walkopts
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136 + commands.formatteropts,
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137 'synopsis': _(b'[-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...'),
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138 'inferrepo': True,
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139 }
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140
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141
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142 def fastannotate(ui, repo, *pats, **opts):
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143 """show changeset information by line for each file
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144
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145 List changes in files, showing the revision id responsible for each line.
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146
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147 This command is useful for discovering when a change was made and by whom.
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148
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149 By default this command prints revision numbers. If you include --file,
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150 --user, or --date, the revision number is suppressed unless you also
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151 include --number. The default format can also be customized by setting
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152 fastannotate.defaultformat.
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153
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154 Returns 0 on success.
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155
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156 .. container:: verbose
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157
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158 This command uses an implementation different from the vanilla annotate
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159 command, which may produce slightly different (while still reasonable)
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160 outputs for some cases.
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161
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162 Unlike the vanilla anootate, fastannotate follows rename regardless of
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163 the existence of --file.
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164
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165 For the best performance when running on a full repo, use -c, -l,
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166 avoid -u, -d, -n. Use --linear and --no-content to make it even faster.
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167
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168 For the best performance when running on a shallow (remotefilelog)
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169 repo, avoid --linear, --no-follow, or any diff options. As the server
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170 won't be able to populate annotate cache when non-default options
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171 affecting results are used.
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172 """
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173 if not pats:
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174 raise error.Abort(_(b'at least one filename or pattern is required'))
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175
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176 # performance hack: filtered repo can be slow. unfilter by default.
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177 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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178 repo = repo.unfiltered()
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179
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180 opts = pycompat.byteskwargs(opts)
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181
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182 rev = opts.get(b'rev', b'.')
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183 rebuild = opts.get(b'rebuild', False)
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184
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185 diffopts = patch.difffeatureopts(
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186 ui, opts, section=b'annotate', whitespace=True
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187 )
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188 aopts = facontext.annotateopts(
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189 diffopts=diffopts,
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190 followmerge=not opts.get(b'linear', False),
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191 followrename=not opts.get(b'no_follow', False),
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192 )
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193
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194 if not any(
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195 opts.get(s)
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196 for s in [b'user', b'date', b'file', b'number', b'changeset']
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197 ):
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198 # default 'number' for compatibility. but fastannotate is more
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199 # efficient with "changeset", "line-number" and "no-content".
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200 for name in ui.configlist(
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201 b'fastannotate', b'defaultformat', [b'number']
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202 ):
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203 opts[name] = True
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204
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205 ui.pager(b'fastannotate')
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206 template = opts.get(b'template')
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207 if template == b'json':
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208 formatter = faformatter.jsonformatter(ui, repo, opts)
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209 else:
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210 formatter = faformatter.defaultformatter(ui, repo, opts)
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211 showdeleted = opts.get(b'deleted', False)
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212 showlines = not bool(opts.get(b'no_content'))
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213 showpath = opts.get(b'file', False)
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214
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215 # find the head of the main (master) branch
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216 master = ui.config(b'fastannotate', b'mainbranch') or rev
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217
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218 # paths will be used for prefetching and the real annotating
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219 paths = list(_matchpaths(repo, rev, pats, opts, aopts))
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220
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221 # for client, prefetch from the server
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222 if util.safehasattr(repo, 'prefetchfastannotate'):
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223 repo.prefetchfastannotate(paths)
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224
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225 for path in paths:
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226 result = lines = existinglines = None
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227 while True:
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228 try:
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229 with facontext.annotatecontext(repo, path, aopts, rebuild) as a:
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230 result = a.annotate(
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231 rev,
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232 master=master,
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233 showpath=showpath,
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234 showlines=(showlines and not showdeleted),
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235 )
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236 if showdeleted:
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237 existinglines = {(l[0], l[1]) for l in result}
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238 result = a.annotatealllines(
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239 rev, showpath=showpath, showlines=showlines
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240 )
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241 break
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242 except (faerror.CannotReuseError, faerror.CorruptedFileError):
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243 # happens if master moves backwards, or the file was deleted
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244 # and readded, or renamed to an existing name, or corrupted.
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245 if rebuild: # give up since we have tried rebuild already
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246 raise
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247 else: # try a second time rebuilding the cache (slow)
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248 rebuild = True
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249 continue
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250
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251 if showlines:
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252 result, lines = result
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253
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254 formatter.write(result, lines, existinglines=existinglines)
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255 formatter.end()
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256
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257
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258 _newopts = set()
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259 _knownopts = {
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260 opt[1].replace(b'-', b'_')
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261 for opt in (fastannotatecommandargs['options'] + commands.globalopts)
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262 }
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263
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264
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265 def _annotatewrapper(orig, ui, repo, *pats, **opts):
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266 """used by wrapdefault"""
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267 # we need this hack until the obsstore has 0.0 seconds perf impact
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268 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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269 repo = repo.unfiltered()
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270
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271 # treat the file as text (skip the isbinary check)
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272 if ui.configbool(b'fastannotate', b'forcetext'):
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273 opts['text'] = True
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274
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275 # check if we need to do prefetch (client-side)
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276 rev = opts.get('rev')
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277 if util.safehasattr(repo, 'prefetchfastannotate') and rev is not None:
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278 paths = list(_matchpaths(repo, rev, pats, pycompat.byteskwargs(opts)))
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279 repo.prefetchfastannotate(paths)
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280
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281 return orig(ui, repo, *pats, **opts)
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282
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283
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284 def registercommand():
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285 """register the fastannotate command"""
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286 name = b'fastannotate|fastblame|fa'
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287 command(name, helpbasic=True, **fastannotatecommandargs)(fastannotate)
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288
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289
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290 def wrapdefault():
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291 """wrap the default annotate command, to be aware of the protocol"""
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292 extensions.wrapcommand(commands.table, b'annotate', _annotatewrapper)
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293
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294
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295 @command(
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296 b'debugbuildannotatecache',
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297 [(b'r', b'rev', b'', _(b'build up to the specific revision'), _(b'REV'))]
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298 + commands.walkopts,
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299 _(b'[-r REV] FILE...'),
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300 )
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301 def debugbuildannotatecache(ui, repo, *pats, **opts):
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302 """incrementally build fastannotate cache up to REV for specified files
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303
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304 If REV is not specified, use the config 'fastannotate.mainbranch'.
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305
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306 If fastannotate.client is True, download the annotate cache from the
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307 server. Otherwise, build the annotate cache locally.
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308
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309 The annotate cache will be built using the default diff and follow
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310 options and lives in '.hg/fastannotate/default'.
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311 """
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312 opts = pycompat.byteskwargs(opts)
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313 rev = opts.get(b'REV') or ui.config(b'fastannotate', b'mainbranch')
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314 if not rev:
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315 raise error.Abort(
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316 _(b'you need to provide a revision'),
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317 hint=_(b'set fastannotate.mainbranch or use --rev'),
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318 )
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319 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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320 repo = repo.unfiltered()
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321 ctx = logcmdutil.revsingle(repo, rev)
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322 m = scmutil.match(ctx, pats, opts)
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323 paths = list(ctx.walk(m))
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324 if util.safehasattr(repo, 'prefetchfastannotate'):
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325 # client
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326 if opts.get(b'REV'):
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327 raise error.Abort(_(b'--rev cannot be used for client'))
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328 repo.prefetchfastannotate(paths)
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329 else:
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330 # server, or full repo
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331 progress = ui.makeprogress(_(b'building'), total=len(paths))
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332 for i, path in enumerate(paths):
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333 progress.update(i)
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334 with facontext.annotatecontext(repo, path) as actx:
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335 try:
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336 if actx.isuptodate(rev):
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337 continue
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338 actx.annotate(rev, rev)
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339 except (faerror.CannotReuseError, faerror.CorruptedFileError):
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340 # the cache is broken (could happen with renaming so the
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341 # file history gets invalidated). rebuild and try again.
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342 ui.debug(
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343 b'fastannotate: %s: rebuilding broken cache\n' % path
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344 )
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345 actx.rebuild()
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346 try:
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347 actx.annotate(rev, rev)
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348 except Exception as ex:
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349 # possibly a bug, but should not stop us from building
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350 # cache for other files.
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351 ui.warn(
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352 _(
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353 b'fastannotate: %s: failed to '
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354 b'build cache: %r\n'
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355 )
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356 % (path, ex)
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357 )
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358 progress.complete()