Mercurial > hg
annotate hgext/convert/git.py @ 46387:c41ac8985fe4
perf: test the formatting of a command help
Since we are about to addd ':' in command name I want this covered.
Differential Revision: https://phab.mercurial-scm.org/D9871
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 25 Jan 2021 23:13:01 +0100 |
parents | 59fa3890d40a |
children | f7621fa14b84 |
rev | line source |
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1 # git.py - git support for the convert extension |
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2 # |
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 from __future__ import absolute_import |
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8 |
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9 import os |
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10 |
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11 from mercurial.i18n import _ |
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12 from mercurial.node import nullhex |
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13 from mercurial import ( |
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14 config, |
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15 error, |
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16 pycompat, |
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17 ) |
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18 |
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19 from . import common |
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20 |
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21 |
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22 class submodule(object): |
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23 def __init__(self, path, node, url): |
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24 self.path = path |
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25 self.node = node |
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26 self.url = url |
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27 |
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28 def hgsub(self): |
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29 return b"%s = [git]%s" % (self.path, self.url) |
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30 |
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31 def hgsubstate(self): |
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32 return b"%s %s" % (self.node, self.path) |
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33 |
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34 |
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35 # Keys in extra fields that should not be copied if the user requests. |
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36 bannedextrakeys = { |
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37 # Git commit object built-ins. |
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38 b'tree', |
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39 b'parent', |
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40 b'author', |
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41 b'committer', |
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42 # Mercurial built-ins. |
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43 b'branch', |
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44 b'close', |
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45 } |
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46 |
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47 |
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49 # Windows does not support GIT_DIR= construct while other systems |
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50 # cannot remove environment variable. Just assume none have |
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51 # both issues. |
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52 |
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53 def _gitcmd(self, cmd, *args, **kwargs): |
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54 return cmd(b'--git-dir=%s' % self.path, *args, **kwargs) |
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55 |
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56 def gitrun0(self, *args, **kwargs): |
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57 return self._gitcmd(self.run0, *args, **kwargs) |
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58 |
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59 def gitrun(self, *args, **kwargs): |
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60 return self._gitcmd(self.run, *args, **kwargs) |
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61 |
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62 def gitrunlines0(self, *args, **kwargs): |
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63 return self._gitcmd(self.runlines0, *args, **kwargs) |
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64 |
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65 def gitrunlines(self, *args, **kwargs): |
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66 return self._gitcmd(self.runlines, *args, **kwargs) |
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67 |
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68 def gitpipe(self, *args, **kwargs): |
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69 return self._gitcmd(self._run3, *args, **kwargs) |
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70 |
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71 def __init__(self, ui, repotype, path, revs=None): |
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72 super(convert_git, self).__init__(ui, repotype, path, revs=revs) |
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73 common.commandline.__init__(self, ui, b'git') |
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74 |
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75 # Pass an absolute path to git to prevent from ever being interpreted |
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76 # as a URL |
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77 path = os.path.abspath(path) |
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78 |
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79 if os.path.isdir(path + b"/.git"): |
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80 path += b"/.git" |
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81 if not os.path.exists(path + b"/objects"): |
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82 raise common.NoRepo( |
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83 _(b"%s does not look like a Git repository") % path |
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84 ) |
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85 |
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86 # The default value (50) is based on the default for 'git diff'. |
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87 similarity = ui.configint(b'convert', b'git.similarity') |
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88 if similarity < 0 or similarity > 100: |
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89 raise error.Abort(_(b'similarity must be between 0 and 100')) |
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90 if similarity > 0: |
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91 self.simopt = [b'-C%d%%' % similarity] |
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92 findcopiesharder = ui.configbool( |
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93 b'convert', b'git.findcopiesharder' |
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94 ) |
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95 if findcopiesharder: |
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96 self.simopt.append(b'--find-copies-harder') |
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97 |
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98 renamelimit = ui.configint(b'convert', b'git.renamelimit') |
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99 self.simopt.append(b'-l%d' % renamelimit) |
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100 else: |
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101 self.simopt = [] |
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102 |
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103 common.checktool(b'git', b'git') |
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104 |
316 | 105 self.path = path |
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106 self.submodules = [] |
316 | 107 |
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108 self.catfilepipe = self.gitpipe(b'cat-file', b'--batch') |
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109 |
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110 self.copyextrakeys = self.ui.configlist(b'convert', b'git.extrakeys') |
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111 banned = set(self.copyextrakeys) & bannedextrakeys |
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112 if banned: |
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113 raise error.Abort( |
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114 _(b'copying of extra key is forbidden: %s') |
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115 % _(b', ').join(sorted(banned)) |
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116 ) |
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117 |
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118 committeractions = self.ui.configlist( |
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119 b'convert', b'git.committeractions' |
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120 ) |
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121 |
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122 messagedifferent = None |
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123 messagealways = None |
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124 for a in committeractions: |
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125 if a.startswith((b'messagedifferent', b'messagealways')): |
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126 k = a |
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127 v = None |
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128 if b'=' in a: |
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129 k, v = a.split(b'=', 1) |
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130 |
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131 if k == b'messagedifferent': |
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132 messagedifferent = v or b'committer:' |
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133 elif k == b'messagealways': |
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134 messagealways = v or b'committer:' |
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135 |
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136 if messagedifferent and messagealways: |
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137 raise error.Abort( |
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138 _( |
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139 b'committeractions cannot define both ' |
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140 b'messagedifferent and messagealways' |
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141 ) |
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142 ) |
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143 |
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144 dropcommitter = b'dropcommitter' in committeractions |
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145 replaceauthor = b'replaceauthor' in committeractions |
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146 |
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147 if dropcommitter and replaceauthor: |
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148 raise error.Abort( |
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149 _( |
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150 b'committeractions cannot define both ' |
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151 b'dropcommitter and replaceauthor' |
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152 ) |
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153 ) |
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154 |
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155 if dropcommitter and messagealways: |
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156 raise error.Abort( |
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157 _( |
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158 b'committeractions cannot define both ' |
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159 b'dropcommitter and messagealways' |
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160 ) |
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161 ) |
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162 |
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163 if not messagedifferent and not messagealways: |
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164 messagedifferent = b'committer:' |
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165 |
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166 self.committeractions = { |
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167 b'dropcommitter': dropcommitter, |
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168 b'replaceauthor': replaceauthor, |
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169 b'messagedifferent': messagedifferent, |
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170 b'messagealways': messagealways, |
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171 } |
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172 |
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173 def after(self): |
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174 for f in self.catfilepipe: |
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175 f.close() |
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176 |
316 | 177 def getheads(self): |
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178 if not self.revs: |
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179 output, status = self.gitrun( |
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180 b'rev-parse', b'--branches', b'--remotes' |
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181 ) |
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182 heads = output.splitlines() |
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183 if status: |
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184 raise error.Abort(_(b'cannot retrieve git heads')) |
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185 else: |
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186 heads = [] |
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187 for rev in self.revs: |
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188 rawhead, ret = self.gitrun(b'rev-parse', b'--verify', rev) |
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189 heads.append(rawhead[:-1]) |
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190 if ret: |
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191 raise error.Abort(_(b'cannot retrieve git head "%s"') % rev) |
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192 return heads |
316 | 193 |
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194 def catfile(self, rev, ftype): |
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195 if rev == nullhex: |
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196 raise IOError |
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197 self.catfilepipe[0].write(rev + b'\n') |
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198 self.catfilepipe[0].flush() |
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199 info = self.catfilepipe[1].readline().split() |
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200 if info[1] != ftype: |
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201 raise error.Abort( |
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202 _(b'cannot read %r object at %s') |
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203 % (pycompat.bytestr(ftype), rev) |
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204 ) |
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205 size = int(info[2]) |
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206 data = self.catfilepipe[1].read(size) |
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207 if len(data) < size: |
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208 raise error.Abort( |
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209 _(b'cannot read %r object at %s: unexpected size') |
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210 % (ftype, rev) |
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211 ) |
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212 # read the trailing newline |
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213 self.catfilepipe[1].read(1) |
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214 return data |
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215 |
316 | 216 def getfile(self, name, rev): |
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217 if rev == nullhex: |
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218 return None, None |
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219 if name == b'.hgsub': |
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220 data = b'\n'.join([m.hgsub() for m in self.submoditer()]) |
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221 mode = b'' |
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222 elif name == b'.hgsubstate': |
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223 data = b'\n'.join([m.hgsubstate() for m in self.submoditer()]) |
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224 mode = b'' |
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225 else: |
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226 data = self.catfile(rev, b"blob") |
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227 mode = self.modecache[(name, rev)] |
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228 return data, mode |
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229 |
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230 def submoditer(self): |
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231 null = nullhex |
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232 for m in sorted(self.submodules, key=lambda p: p.path): |
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233 if m.node != null: |
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234 yield m |
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235 |
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236 def parsegitmodules(self, content): |
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237 """Parse the formatted .gitmodules file, example file format: |
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238 [submodule "sub"]\n |
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239 \tpath = sub\n |
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240 \turl = git://giturl\n |
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241 """ |
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242 self.submodules = [] |
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243 c = config.config() |
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244 # Each item in .gitmodules starts with whitespace that cant be parsed |
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245 c.parse( |
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246 b'.gitmodules', |
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247 b'\n'.join(line.strip() for line in content.split(b'\n')), |
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248 ) |
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249 for sec in c.sections(): |
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250 s = c[sec] |
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251 if b'url' in s and b'path' in s: |
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252 self.submodules.append(submodule(s[b'path'], b'', s[b'url'])) |
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253 |
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254 def retrievegitmodules(self, version): |
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255 modules, ret = self.gitrun( |
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256 b'show', b'%s:%s' % (version, b'.gitmodules') |
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257 ) |
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258 if ret: |
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259 # This can happen if a file is in the repo that has permissions |
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260 # 160000, but there is no .gitmodules file. |
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261 self.ui.warn( |
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262 _(b"warning: cannot read submodules config file in %s\n") |
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263 % version |
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264 ) |
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265 return |
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266 |
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267 try: |
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268 self.parsegitmodules(modules) |
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269 except error.ParseError: |
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270 self.ui.warn( |
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271 _(b"warning: unable to parse .gitmodules in %s\n") % version |
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272 ) |
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273 return |
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274 |
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275 for m in self.submodules: |
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276 node, ret = self.gitrun(b'rev-parse', b'%s:%s' % (version, m.path)) |
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277 if ret: |
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278 continue |
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279 m.node = node.strip() |
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280 |
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281 def getchanges(self, version, full): |
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282 if full: |
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283 raise error.Abort(_(b"convert from git does not support --full")) |
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284 self.modecache = {} |
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285 cmd = ( |
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286 [b'diff-tree', b'-z', b'--root', b'-m', b'-r'] |
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287 + self.simopt |
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288 + [version] |
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289 ) |
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290 output, status = self.gitrun(*cmd) |
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291 if status: |
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292 raise error.Abort(_(b'cannot read changes in %s') % version) |
316 | 293 changes = [] |
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294 copies = {} |
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295 seen = set() |
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296 entry = None |
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297 subexists = [False] |
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298 subdeleted = [False] |
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299 difftree = output.split(b'\x00') |
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300 lcount = len(difftree) |
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301 i = 0 |
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302 |
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303 skipsubmodules = self.ui.configbool(b'convert', b'git.skipsubmodules') |
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304 |
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305 def add(entry, f, isdest): |
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306 seen.add(f) |
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307 h = entry[3] |
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308 p = entry[1] == b"100755" |
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309 s = entry[1] == b"120000" |
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310 renamesource = not isdest and entry[4][0] == b'R' |
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311 |
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312 if f == b'.gitmodules': |
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313 if skipsubmodules: |
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314 return |
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315 |
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316 subexists[0] = True |
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317 if entry[4] == b'D' or renamesource: |
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318 subdeleted[0] = True |
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319 changes.append((b'.hgsub', nullhex)) |
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320 else: |
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321 changes.append((b'.hgsub', b'')) |
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322 elif entry[1] == b'160000' or entry[0] == b':160000': |
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323 if not skipsubmodules: |
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324 subexists[0] = True |
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325 else: |
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326 if renamesource: |
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327 h = nullhex |
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328 self.modecache[(f, h)] = (p and b"x") or (s and b"l") or b"" |
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329 changes.append((f, h)) |
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330 |
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331 while i < lcount: |
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332 l = difftree[i] |
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333 i += 1 |
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334 if not entry: |
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335 if not l.startswith(b':'): |
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336 continue |
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337 entry = tuple(pycompat.bytestr(p) for p in l.split()) |
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338 continue |
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339 f = l |
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340 if entry[4][0] == b'C': |
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341 copysrc = f |
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342 copydest = difftree[i] |
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343 i += 1 |
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344 f = copydest |
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345 copies[copydest] = copysrc |
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346 if f not in seen: |
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347 add(entry, f, False) |
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348 # A file can be copied multiple times, or modified and copied |
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349 # simultaneously. So f can be repeated even if fdest isn't. |
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350 if entry[4][0] == b'R': |
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351 # rename: next line is the destination |
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352 fdest = difftree[i] |
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353 i += 1 |
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354 if fdest not in seen: |
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355 add(entry, fdest, True) |
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356 # .gitmodules isn't imported at all, so it being copied to |
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357 # and fro doesn't really make sense |
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358 if f != b'.gitmodules' and fdest != b'.gitmodules': |
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359 copies[fdest] = f |
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360 entry = None |
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361 |
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362 if subexists[0]: |
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363 if subdeleted[0]: |
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364 changes.append((b'.hgsubstate', nullhex)) |
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365 else: |
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366 self.retrievegitmodules(version) |
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367 changes.append((b'.hgsubstate', b'')) |
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368 return (changes, copies, set()) |
316 | 369 |
370 def getcommit(self, version): | |
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371 c = self.catfile(version, b"commit") # read the commit hash |
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372 end = c.find(b"\n\n") |
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373 message = c[end + 2 :] |
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374 message = self.recode(message) |
316 | 375 l = c[:end].splitlines() |
376 parents = [] | |
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377 author = committer = None |
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378 extra = {} |
316 | 379 for e in l[1:]: |
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380 n, v = e.split(b" ", 1) |
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381 if n == b"author": |
316 | 382 p = v.split() |
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383 tm, tz = p[-2:] |
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384 author = b" ".join(p[:-2]) |
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385 if author[0] == b"<": |
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386 author = author[1:-1] |
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387 author = self.recode(author) |
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388 if n == b"committer": |
431 | 389 p = v.split() |
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390 tm, tz = p[-2:] |
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391 committer = b" ".join(p[:-2]) |
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392 if committer[0] == b"<": |
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393 committer = committer[1:-1] |
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394 committer = self.recode(committer) |
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395 if n == b"parent": |
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396 parents.append(v) |
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397 if n in self.copyextrakeys: |
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398 extra[n] = v |
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399 |
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400 if self.committeractions[b'dropcommitter']: |
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401 committer = None |
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402 elif self.committeractions[b'replaceauthor']: |
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403 author = committer |
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404 |
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405 if committer: |
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406 messagealways = self.committeractions[b'messagealways'] |
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407 messagedifferent = self.committeractions[b'messagedifferent'] |
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408 if messagealways: |
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409 message += b'\n%s %s\n' % (messagealways, committer) |
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410 elif messagedifferent and author != committer: |
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411 message += b'\n%s %s\n' % (messagedifferent, committer) |
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412 |
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413 tzs, tzh, tzm = tz[-5:-4] + b"1", tz[-4:-2], tz[-2:] |
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414 tz = -int(tzs) * (int(tzh) * 3600 + int(tzm)) |
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415 date = tm + b" " + (b"%d" % tz) |
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416 saverev = self.ui.configbool(b'convert', b'git.saverev') |
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417 |
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418 c = common.commit( |
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419 parents=parents, |
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420 date=date, |
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421 author=author, |
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422 desc=message, |
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423 rev=version, |
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424 extra=extra, |
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425 saverev=saverev, |
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426 ) |
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427 return c |
316 | 428 |
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429 def numcommits(self): |
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430 output, ret = self.gitrunlines(b'rev-list', b'--all') |
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431 if ret: |
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432 raise error.Abort( |
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433 _(b'cannot retrieve number of commits in %s') % self.path |
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434 ) |
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435 return len(output) |
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436 |
694 | 437 def gettags(self): |
438 tags = {} | |
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|
439 alltags = {} |
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440 output, status = self.gitrunlines(b'ls-remote', b'--tags', self.path) |
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441 |
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442 if status: |
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443 raise error.Abort(_(b'cannot read tags from %s') % self.path) |
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444 prefix = b'refs/tags/' |
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445 |
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|
446 # Build complete list of tags, both annotated and bare ones |
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447 for line in output: |
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|
448 line = line.strip() |
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449 if line.startswith(b"error:") or line.startswith(b"fatal:"): |
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450 raise error.Abort(_(b'cannot read tags from %s') % self.path) |
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|
451 node, tag = line.split(None, 1) |
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452 if not tag.startswith(prefix): |
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453 continue |
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454 alltags[tag[len(prefix) :]] = node |
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455 |
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|
456 # Filter out tag objects for annotated tag refs |
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457 for tag in alltags: |
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458 if tag.endswith(b'^{}'): |
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|
459 tags[tag[:-3]] = alltags[tag] |
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460 else: |
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461 if tag + b'^{}' in alltags: |
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|
462 continue |
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463 else: |
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|
464 tags[tag] = alltags[tag] |
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|
465 |
694 | 466 return tags |
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parents:
5336
diff
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|
467 |
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468 def getchangedfiles(self, version, i): |
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469 changes = [] |
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470 if i is None: |
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471 output, status = self.gitrunlines( |
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472 b'diff-tree', b'--root', b'-m', b'-r', version |
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473 ) |
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474 if status: |
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475 raise error.Abort(_(b'cannot read changes in %s') % version) |
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476 for l in output: |
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477 if b"\t" not in l: |
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478 continue |
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479 m, f = l[:-1].split(b"\t") |
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480 changes.append(f) |
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481 else: |
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482 output, status = self.gitrunlines( |
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483 b'diff-tree', |
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484 b'--name-only', |
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485 b'--root', |
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486 b'-r', |
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487 version, |
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488 b'%s^%d' % (version, i + 1), |
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489 b'--', |
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490 ) |
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491 if status: |
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492 raise error.Abort(_(b'cannot read changes in %s') % version) |
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493 changes = [f.rstrip(b'\n') for f in output] |
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494 |
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495 return changes |
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496 |
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497 def getbookmarks(self): |
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498 bookmarks = {} |
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499 |
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500 # Handle local and remote branches |
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501 remoteprefix = self.ui.config(b'convert', b'git.remoteprefix') |
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502 reftypes = [ |
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503 # (git prefix, hg prefix) |
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504 (b'refs/remotes/origin/', remoteprefix + b'/'), |
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505 (b'refs/heads/', b''), |
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506 ] |
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507 |
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508 exclude = { |
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509 b'refs/remotes/origin/HEAD', |
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510 } |
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511 |
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512 try: |
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513 output, status = self.gitrunlines(b'show-ref') |
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514 for line in output: |
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515 line = line.strip() |
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516 rev, name = line.split(None, 1) |
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517 # Process each type of branch |
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518 for gitprefix, hgprefix in reftypes: |
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519 if not name.startswith(gitprefix) or name in exclude: |
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520 continue |
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521 name = b'%s%s' % (hgprefix, name[len(gitprefix) :]) |
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522 bookmarks[name] = rev |
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523 except Exception: |
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524 pass |
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525 |
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526 return bookmarks |
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527 |
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528 def checkrevformat(self, revstr, mapname=b'splicemap'): |
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529 """ git revision string is a 40 byte hex """ |
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530 self.checkhexformat(revstr, mapname) |