Mercurial > public > mercurial-scm > hg-stable

annotate hgext/fastannotate/commands.py @ 43117:8ff1ecfadcd1

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cleanup: join string literals that are already on one line Thanks to Kyle for noticing this and for providing the regular expression to run on the codebase. This patch has been reviewed by the test suite and they approved of it. # skip-blame: fallout from mass reformatting Differential Revision: https://phab.mercurial-scm.org/D7028
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 08 Oct 2019 15:06:18 -0700
parents 4aa72cdf616f
children 9f70512ae2cf
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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 patch,
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19 pycompat,
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20 registrar,
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21 scmutil,
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22 util,
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23 )
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24
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25 from . import (
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26 context as facontext,
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27 error as faerror,
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28 formatter as faformatter,
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29 )
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30
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31 cmdtable = {}
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32 command = registrar.command(cmdtable)
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33
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34
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35 def _matchpaths(repo, rev, pats, opts, aopts=facontext.defaultopts):
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36 """generate paths matching given patterns"""
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37 perfhack = repo.ui.configbool(b'fastannotate', b'perfhack')
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38
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39 # disable perfhack if:
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40 # a) any walkopt is used
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41 # b) if we treat pats as plain file names, some of them do not have
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42 # corresponding linelog files
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43 if perfhack:
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44 # cwd related to reporoot
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45 reporoot = os.path.dirname(repo.path)
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46 reldir = os.path.relpath(encoding.getcwd(), reporoot)
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47 if reldir == b'.':
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48 reldir = b''
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49 if any(opts.get(o[1]) for o in commands.walkopts): # a)
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50 perfhack = False
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51 else: # b)
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52 relpats = [
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53 os.path.relpath(p, reporoot) if os.path.isabs(p) else p
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54 for p in pats
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55 ]
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56 # disable perfhack on '..' since it allows escaping from the repo
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57 if any(
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58 (
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59 b'..' in f
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60 or not os.path.isfile(
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61 facontext.pathhelper(repo, f, aopts).linelogpath
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62 )
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63 )
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64 for f in relpats
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65 ):
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66 perfhack = False
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67
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68 # perfhack: emit paths directory without checking with manifest
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69 # this can be incorrect if the rev dos not have file.
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70 if perfhack:
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71 for p in relpats:
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72 yield os.path.join(reldir, p)
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73 else:
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74
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75 def bad(x, y):
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76 raise error.Abort(b"%s: %s" % (x, y))
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77
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78 ctx = scmutil.revsingle(repo, rev)
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79 m = scmutil.match(ctx, pats, opts, badfn=bad)
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80 for p in ctx.walk(m):
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81 yield p
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82
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83
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84 fastannotatecommandargs = {
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85 r'options': [
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86 (b'r', b'rev', b'.', _(b'annotate the specified revision'), _(b'REV')),
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87 (b'u', b'user', None, _(b'list the author (long with -v)')),
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88 (b'f', b'file', None, _(b'list the filename')),
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89 (b'd', b'date', None, _(b'list the date (short with -q)')),
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90 (b'n', b'number', None, _(b'list the revision number (default)')),
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91 (b'c', b'changeset', None, _(b'list the changeset')),
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92 (
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93 b'l',
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94 b'line-number',
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95 None,
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96 _(b'show line number at the first appearance'),
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97 ),
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98 (
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99 b'e',
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100 b'deleted',
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101 None,
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102 _(b'show deleted lines (slow) (EXPERIMENTAL)'),
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103 ),
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104 (
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105 b'',
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106 b'no-content',
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107 None,
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108 _(b'do not show file content (EXPERIMENTAL)'),
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109 ),
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110 (b'', b'no-follow', None, _(b"don't follow copies and renames")),
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111 (
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112 b'',
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113 b'linear',
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114 None,
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115 _(
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116 b'enforce linear history, ignore second parent '
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117 b'of merges (EXPERIMENTAL)'
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118 ),
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119 ),
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120 (
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121 b'',
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122 b'long-hash',
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123 None,
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124 _(b'show long changeset hash (EXPERIMENTAL)'),
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125 ),
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126 (
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127 b'',
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128 b'rebuild',
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129 None,
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130 _(b'rebuild cache even if it exists (EXPERIMENTAL)'),
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131 ),
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132 ]
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133 + commands.diffwsopts
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134 + commands.walkopts
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135 + commands.formatteropts,
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136 r'synopsis': _(b'[-r REV] [-f] [-a] [-u] [-d] [-n] [-c] [-l] FILE...'),
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137 r'inferrepo': True,
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138 }
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139
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140
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141 def fastannotate(ui, repo, *pats, **opts):
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142 """show changeset information by line for each file
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143
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144 List changes in files, showing the revision id responsible for each line.
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145
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146 This command is useful for discovering when a change was made and by whom.
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147
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148 By default this command prints revision numbers. If you include --file,
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149 --user, or --date, the revision number is suppressed unless you also
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150 include --number. The default format can also be customized by setting
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151 fastannotate.defaultformat.
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152
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153 Returns 0 on success.
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154
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155 .. container:: verbose
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156
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157 This command uses an implementation different from the vanilla annotate
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158 command, which may produce slightly different (while still reasonable)
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159 outputs for some cases.
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160
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161 Unlike the vanilla anootate, fastannotate follows rename regardless of
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162 the existence of --file.
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163
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164 For the best performance when running on a full repo, use -c, -l,
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165 avoid -u, -d, -n. Use --linear and --no-content to make it even faster.
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166
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167 For the best performance when running on a shallow (remotefilelog)
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168 repo, avoid --linear, --no-follow, or any diff options. As the server
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169 won't be able to populate annotate cache when non-default options
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170 affecting results are used.
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171 """
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172 if not pats:
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173 raise error.Abort(_(b'at least one filename or pattern is required'))
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174
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175 # performance hack: filtered repo can be slow. unfilter by default.
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176 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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177 repo = repo.unfiltered()
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178
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179 opts = pycompat.byteskwargs(opts)
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180
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181 rev = opts.get(b'rev', b'.')
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182 rebuild = opts.get(b'rebuild', False)
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183
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184 diffopts = patch.difffeatureopts(
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185 ui, opts, section=b'annotate', whitespace=True
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186 )
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187 aopts = facontext.annotateopts(
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188 diffopts=diffopts,
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189 followmerge=not opts.get(b'linear', False),
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190 followrename=not opts.get(b'no_follow', False),
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191 )
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192
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193 if not any(
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194 opts.get(s)
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195 for s in [b'user', b'date', b'file', b'number', b'changeset']
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196 ):
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197 # default 'number' for compatibility. but fastannotate is more
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198 # efficient with "changeset", "line-number" and "no-content".
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199 for name in ui.configlist(
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200 b'fastannotate', b'defaultformat', [b'number']
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201 ):
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202 opts[name] = True
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203
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204 ui.pager(b'fastannotate')
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205 template = opts.get(b'template')
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206 if template == b'json':
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207 formatter = faformatter.jsonformatter(ui, repo, opts)
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208 else:
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209 formatter = faformatter.defaultformatter(ui, repo, opts)
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210 showdeleted = opts.get(b'deleted', False)
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211 showlines = not bool(opts.get(b'no_content'))
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212 showpath = opts.get(b'file', False)
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213
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214 # find the head of the main (master) branch
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215 master = ui.config(b'fastannotate', b'mainbranch') or rev
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216
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217 # paths will be used for prefetching and the real annotating
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218 paths = list(_matchpaths(repo, rev, pats, opts, aopts))
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219
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220 # for client, prefetch from the server
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221 if util.safehasattr(repo, 'prefetchfastannotate'):
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222 repo.prefetchfastannotate(paths)
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223
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224 for path in paths:
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225 result = lines = existinglines = None
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226 while True:
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227 try:
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228 with facontext.annotatecontext(repo, path, aopts, rebuild) as a:
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229 result = a.annotate(
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230 rev,
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231 master=master,
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232 showpath=showpath,
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233 showlines=(showlines and not showdeleted),
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234 )
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235 if showdeleted:
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236 existinglines = set((l[0], l[1]) for l in result)
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237 result = a.annotatealllines(
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238 rev, showpath=showpath, showlines=showlines
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239 )
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240 break
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241 except (faerror.CannotReuseError, faerror.CorruptedFileError):
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242 # happens if master moves backwards, or the file was deleted
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243 # and readded, or renamed to an existing name, or corrupted.
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244 if rebuild: # give up since we have tried rebuild already
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245 raise
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246 else: # try a second time rebuilding the cache (slow)
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247 rebuild = True
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248 continue
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249
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250 if showlines:
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251 result, lines = result
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252
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253 formatter.write(result, lines, existinglines=existinglines)
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254 formatter.end()
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255
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256
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257 _newopts = set()
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258 _knownopts = {
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259 opt[1].replace(b'-', b'_')
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260 for opt in (fastannotatecommandargs[r'options'] + commands.globalopts)
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261 }
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262
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263
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264 def _annotatewrapper(orig, ui, repo, *pats, **opts):
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265 """used by wrapdefault"""
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266 # we need this hack until the obsstore has 0.0 seconds perf impact
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267 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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268 repo = repo.unfiltered()
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269
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270 # treat the file as text (skip the isbinary check)
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271 if ui.configbool(b'fastannotate', b'forcetext'):
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272 opts[r'text'] = True
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273
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274 # check if we need to do prefetch (client-side)
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275 rev = opts.get(r'rev')
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276 if util.safehasattr(repo, 'prefetchfastannotate') and rev is not None:
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277 paths = list(_matchpaths(repo, rev, pats, pycompat.byteskwargs(opts)))
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278 repo.prefetchfastannotate(paths)
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279
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280 return orig(ui, repo, *pats, **opts)
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281
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282
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283 def registercommand():
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284 """register the fastannotate command"""
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285 name = b'fastannotate|fastblame|fa'
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286 command(name, helpbasic=True, **fastannotatecommandargs)(fastannotate)
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287
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288
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289 def wrapdefault():
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290 """wrap the default annotate command, to be aware of the protocol"""
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291 extensions.wrapcommand(commands.table, b'annotate', _annotatewrapper)
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292
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293
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294 @command(
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295 b'debugbuildannotatecache',
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296 [(b'r', b'rev', b'', _(b'build up to the specific revision'), _(b'REV'))]
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297 + commands.walkopts,
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298 _(b'[-r REV] FILE...'),
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299 )
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300 def debugbuildannotatecache(ui, repo, *pats, **opts):
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301 """incrementally build fastannotate cache up to REV for specified files
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302
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303 If REV is not specified, use the config 'fastannotate.mainbranch'.
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304
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305 If fastannotate.client is True, download the annotate cache from the
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306 server. Otherwise, build the annotate cache locally.
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307
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308 The annotate cache will be built using the default diff and follow
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309 options and lives in '.hg/fastannotate/default'.
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310 """
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311 opts = pycompat.byteskwargs(opts)
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312 rev = opts.get(b'REV') or ui.config(b'fastannotate', b'mainbranch')
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313 if not rev:
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314 raise error.Abort(
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315 _(b'you need to provide a revision'),
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316 hint=_(b'set fastannotate.mainbranch or use --rev'),
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317 )
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318 if ui.configbool(b'fastannotate', b'unfilteredrepo'):
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319 repo = repo.unfiltered()
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320 ctx = scmutil.revsingle(repo, rev)
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321 m = scmutil.match(ctx, pats, opts)
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322 paths = list(ctx.walk(m))
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323 if util.safehasattr(repo, 'prefetchfastannotate'):
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324 # client
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325 if opts.get(b'REV'):
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326 raise error.Abort(_(b'--rev cannot be used for client'))
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327 repo.prefetchfastannotate(paths)
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328 else:
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329 # server, or full repo
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330 progress = ui.makeprogress(_(b'building'), total=len(paths))
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331 for i, path in enumerate(paths):
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332 progress.update(i)
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333 with facontext.annotatecontext(repo, path) as actx:
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334 try:
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335 if actx.isuptodate(rev):
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336 continue
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337 actx.annotate(rev, rev)
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338 except (faerror.CannotReuseError, faerror.CorruptedFileError):
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339 # the cache is broken (could happen with renaming so the
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340 # file history gets invalidated). rebuild and try again.
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341 ui.debug(
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342 b'fastannotate: %s: rebuilding broken cache\n' % path
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343 )
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344 actx.rebuild()
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345 try:
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346 actx.annotate(rev, rev)
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347 except Exception as ex:
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348 # possibly a bug, but should not stop us from building
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349 # cache for other files.
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350 ui.warn(
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351 _(
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352 b'fastannotate: %s: failed to '
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353 b'build cache: %r\n'
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354 )
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355 % (path, ex)
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356 )
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357 progress.complete()