Mercurial > hg
annotate hgext/convert/gnuarch.py @ 44605:960770add699
setup: relax -Werror for declaration-after-statement on Python 3.9
It turns out Python 3.9 introduces such declarations in the headers, eg
cpython/abstract.h:189:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
so we have to be more relaxed when compiling for 3.9.
Differential Revision: https://phab.mercurial-scm.org/D8327
author | Augie Fackler <augie@google.com> |
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date | Wed, 25 Mar 2020 11:56:47 -0400 |
parents | 9f70512ae2cf |
children | 8e8fd938ca07 |
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1 # gnuarch.py - GNU Arch support for the convert extension |
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2 # |
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3 # Copyright 2008, 2009 Aleix Conchillo Flaque <aleix@member.fsf.org> |
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4 # and others |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
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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 import shutil |
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12 import stat |
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13 import tempfile |
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14 |
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15 from mercurial.i18n import _ |
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16 from mercurial import ( |
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17 encoding, |
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18 error, |
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19 mail, |
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20 pycompat, |
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21 util, |
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22 ) |
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23 from mercurial.utils import ( |
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24 dateutil, |
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25 procutil, |
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26 ) |
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27 from . import common |
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28 |
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29 |
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30 class gnuarch_source(common.converter_source, common.commandline): |
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31 class gnuarch_rev(object): |
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32 def __init__(self, rev): |
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33 self.rev = rev |
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34 self.summary = b'' |
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35 self.date = None |
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36 self.author = b'' |
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37 self.continuationof = None |
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38 self.add_files = [] |
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39 self.mod_files = [] |
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40 self.del_files = [] |
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41 self.ren_files = {} |
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42 self.ren_dirs = {} |
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43 |
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44 def __init__(self, ui, repotype, path, revs=None): |
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45 super(gnuarch_source, self).__init__(ui, repotype, path, revs=revs) |
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46 |
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47 if not os.path.exists(os.path.join(path, b'{arch}')): |
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48 raise common.NoRepo( |
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49 _(b"%s does not look like a GNU Arch repository") % path |
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50 ) |
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51 |
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52 # Could use checktool, but we want to check for baz or tla. |
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53 self.execmd = None |
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54 if procutil.findexe(b'baz'): |
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55 self.execmd = b'baz' |
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56 else: |
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57 if procutil.findexe(b'tla'): |
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58 self.execmd = b'tla' |
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59 else: |
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60 raise error.Abort(_(b'cannot find a GNU Arch tool')) |
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61 |
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62 common.commandline.__init__(self, ui, self.execmd) |
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63 |
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64 self.path = os.path.realpath(path) |
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65 self.tmppath = None |
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66 |
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67 self.treeversion = None |
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68 self.lastrev = None |
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69 self.changes = {} |
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70 self.parents = {} |
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71 self.tags = {} |
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72 self.encoding = encoding.encoding |
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73 self.archives = [] |
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74 |
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75 def before(self): |
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76 # Get registered archives |
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77 self.archives = [ |
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78 i.rstrip(b'\n') for i in self.runlines0(b'archives', b'-n') |
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79 ] |
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80 |
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81 if self.execmd == b'tla': |
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82 output = self.run0(b'tree-version', self.path) |
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83 else: |
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84 output = self.run0(b'tree-version', b'-d', self.path) |
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85 self.treeversion = output.strip() |
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86 |
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87 # Get name of temporary directory |
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88 version = self.treeversion.split(b'/') |
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89 self.tmppath = os.path.join( |
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90 pycompat.fsencode(tempfile.gettempdir()), b'hg-%s' % version[1] |
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91 ) |
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92 |
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93 # Generate parents dictionary |
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94 self.parents[None] = [] |
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95 treeversion = self.treeversion |
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96 child = None |
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97 while treeversion: |
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98 self.ui.status(_(b'analyzing tree version %s...\n') % treeversion) |
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99 |
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100 archive = treeversion.split(b'/')[0] |
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101 if archive not in self.archives: |
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102 self.ui.status( |
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103 _( |
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104 b'tree analysis stopped because it points to ' |
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105 b'an unregistered archive %s...\n' |
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106 ) |
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107 % archive |
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108 ) |
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109 break |
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110 |
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111 # Get the complete list of revisions for that tree version |
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112 output, status = self.runlines( |
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113 b'revisions', b'-r', b'-f', treeversion |
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114 ) |
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115 self.checkexit( |
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116 status, b'failed retrieving revisions for %s' % treeversion |
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117 ) |
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118 |
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119 # No new iteration unless a revision has a continuation-of header |
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120 treeversion = None |
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121 |
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122 for l in output: |
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123 rev = l.strip() |
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124 self.changes[rev] = self.gnuarch_rev(rev) |
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125 self.parents[rev] = [] |
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126 |
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127 # Read author, date and summary |
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128 catlog, status = self.run(b'cat-log', b'-d', self.path, rev) |
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129 if status: |
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130 catlog = self.run0(b'cat-archive-log', rev) |
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131 self._parsecatlog(catlog, rev) |
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132 |
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133 # Populate the parents map |
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134 self.parents[child].append(rev) |
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135 |
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136 # Keep track of the current revision as the child of the next |
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137 # revision scanned |
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138 child = rev |
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139 |
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140 # Check if we have to follow the usual incremental history |
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141 # or if we have to 'jump' to a different treeversion given |
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142 # by the continuation-of header. |
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143 if self.changes[rev].continuationof: |
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144 treeversion = b'--'.join( |
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145 self.changes[rev].continuationof.split(b'--')[:-1] |
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146 ) |
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147 break |
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148 |
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149 # If we reached a base-0 revision w/o any continuation-of |
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150 # header, it means the tree history ends here. |
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151 if rev[-6:] == b'base-0': |
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152 break |
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153 |
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154 def after(self): |
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155 self.ui.debug(b'cleaning up %s\n' % self.tmppath) |
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156 shutil.rmtree(self.tmppath, ignore_errors=True) |
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157 |
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158 def getheads(self): |
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159 return self.parents[None] |
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160 |
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161 def getfile(self, name, rev): |
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162 if rev != self.lastrev: |
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163 raise error.Abort(_(b'internal calling inconsistency')) |
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164 |
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165 if not os.path.lexists(os.path.join(self.tmppath, name)): |
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166 return None, None |
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167 |
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168 return self._getfile(name, rev) |
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169 |
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170 def getchanges(self, rev, full): |
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171 if full: |
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172 raise error.Abort(_(b"convert from arch does not support --full")) |
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173 self._update(rev) |
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174 changes = [] |
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175 copies = {} |
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176 |
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177 for f in self.changes[rev].add_files: |
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178 changes.append((f, rev)) |
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179 |
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180 for f in self.changes[rev].mod_files: |
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181 changes.append((f, rev)) |
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182 |
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183 for f in self.changes[rev].del_files: |
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184 changes.append((f, rev)) |
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185 |
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186 for src in self.changes[rev].ren_files: |
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187 to = self.changes[rev].ren_files[src] |
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188 changes.append((src, rev)) |
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189 changes.append((to, rev)) |
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190 copies[to] = src |
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191 |
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192 for src in self.changes[rev].ren_dirs: |
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193 to = self.changes[rev].ren_dirs[src] |
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194 chgs, cps = self._rendirchanges(src, to) |
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195 changes += [(f, rev) for f in chgs] |
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196 copies.update(cps) |
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197 |
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198 self.lastrev = rev |
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199 return sorted(set(changes)), copies, set() |
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200 |
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201 def getcommit(self, rev): |
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202 changes = self.changes[rev] |
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203 return common.commit( |
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204 author=changes.author, |
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205 date=changes.date, |
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206 desc=changes.summary, |
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207 parents=self.parents[rev], |
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208 rev=rev, |
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209 ) |
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210 |
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211 def gettags(self): |
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212 return self.tags |
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213 |
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214 def _execute(self, cmd, *args, **kwargs): |
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215 cmdline = [self.execmd, cmd] |
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216 cmdline += args |
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217 cmdline = [procutil.shellquote(arg) for arg in cmdline] |
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218 bdevnull = pycompat.bytestr(os.devnull) |
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219 cmdline += [b'>', bdevnull, b'2>', bdevnull] |
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220 cmdline = procutil.quotecommand(b' '.join(cmdline)) |
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221 self.ui.debug(cmdline, b'\n') |
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222 return os.system(pycompat.rapply(procutil.tonativestr, cmdline)) |
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223 |
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224 def _update(self, rev): |
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225 self.ui.debug(b'applying revision %s...\n' % rev) |
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226 changeset, status = self.runlines(b'replay', b'-d', self.tmppath, rev) |
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227 if status: |
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228 # Something went wrong while merging (baz or tla |
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229 # issue?), get latest revision and try from there |
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230 shutil.rmtree(self.tmppath, ignore_errors=True) |
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231 self._obtainrevision(rev) |
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232 else: |
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233 old_rev = self.parents[rev][0] |
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234 self.ui.debug( |
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235 b'computing changeset between %s and %s...\n' % (old_rev, rev) |
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236 ) |
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237 self._parsechangeset(changeset, rev) |
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238 |
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239 def _getfile(self, name, rev): |
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240 mode = os.lstat(os.path.join(self.tmppath, name)).st_mode |
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241 if stat.S_ISLNK(mode): |
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242 data = util.readlink(os.path.join(self.tmppath, name)) |
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243 if mode: |
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244 mode = b'l' |
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245 else: |
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246 mode = b'' |
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247 else: |
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248 data = util.readfile(os.path.join(self.tmppath, name)) |
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249 mode = (mode & 0o111) and b'x' or b'' |
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250 return data, mode |
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251 |
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252 def _exclude(self, name): |
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253 exclude = [b'{arch}', b'.arch-ids', b'.arch-inventory'] |
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254 for exc in exclude: |
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255 if name.find(exc) != -1: |
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256 return True |
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257 return False |
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258 |
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259 def _readcontents(self, path): |
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260 files = [] |
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261 contents = os.listdir(path) |
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262 while len(contents) > 0: |
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263 c = contents.pop() |
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264 p = os.path.join(path, c) |
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265 # os.walk could be used, but here we avoid internal GNU |
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266 # Arch files and directories, thus saving a lot time. |
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267 if not self._exclude(p): |
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268 if os.path.isdir(p): |
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269 contents += [os.path.join(c, f) for f in os.listdir(p)] |
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270 else: |
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271 files.append(c) |
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272 return files |
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273 |
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274 def _rendirchanges(self, src, dest): |
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275 changes = [] |
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276 copies = {} |
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277 files = self._readcontents(os.path.join(self.tmppath, dest)) |
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278 for f in files: |
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279 s = os.path.join(src, f) |
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280 d = os.path.join(dest, f) |
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281 changes.append(s) |
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282 changes.append(d) |
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283 copies[d] = s |
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284 return changes, copies |
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285 |
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286 def _obtainrevision(self, rev): |
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287 self.ui.debug(b'obtaining revision %s...\n' % rev) |
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288 output = self._execute(b'get', rev, self.tmppath) |
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289 self.checkexit(output) |
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290 self.ui.debug(b'analyzing revision %s...\n' % rev) |
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291 files = self._readcontents(self.tmppath) |
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292 self.changes[rev].add_files += files |
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293 |
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294 def _stripbasepath(self, path): |
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295 if path.startswith(b'./'): |
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296 return path[2:] |
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297 return path |
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298 |
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299 def _parsecatlog(self, data, rev): |
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300 try: |
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301 catlog = mail.parsebytes(data) |
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302 |
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303 # Commit date |
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304 self.changes[rev].date = dateutil.datestr( |
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305 dateutil.strdate(catlog['Standard-date'], b'%Y-%m-%d %H:%M:%S') |
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306 ) |
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307 |
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308 # Commit author |
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309 self.changes[rev].author = self.recode(catlog['Creator']) |
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310 |
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311 # Commit description |
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312 self.changes[rev].summary = b'\n\n'.join( |
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313 ( |
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314 self.recode(catlog['Summary']), |
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315 self.recode(catlog.get_payload()), |
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316 ) |
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317 ) |
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318 self.changes[rev].summary = self.recode(self.changes[rev].summary) |
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319 |
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320 # Commit revision origin when dealing with a branch or tag |
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321 if 'Continuation-of' in catlog: |
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322 self.changes[rev].continuationof = self.recode( |
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323 catlog['Continuation-of'] |
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324 ) |
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325 except Exception: |
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326 raise error.Abort(_(b'could not parse cat-log of %s') % rev) |
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327 |
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328 def _parsechangeset(self, data, rev): |
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329 for l in data: |
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330 l = l.strip() |
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331 # Added file (ignore added directory) |
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332 if l.startswith(b'A') and not l.startswith(b'A/'): |
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333 file = self._stripbasepath(l[1:].strip()) |
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334 if not self._exclude(file): |
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335 self.changes[rev].add_files.append(file) |
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336 # Deleted file (ignore deleted directory) |
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337 elif l.startswith(b'D') and not l.startswith(b'D/'): |
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338 file = self._stripbasepath(l[1:].strip()) |
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339 if not self._exclude(file): |
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340 self.changes[rev].del_files.append(file) |
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341 # Modified binary file |
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342 elif l.startswith(b'Mb'): |
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343 file = self._stripbasepath(l[2:].strip()) |
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344 if not self._exclude(file): |
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345 self.changes[rev].mod_files.append(file) |
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346 # Modified link |
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347 elif l.startswith(b'M->'): |
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348 file = self._stripbasepath(l[3:].strip()) |
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349 if not self._exclude(file): |
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350 self.changes[rev].mod_files.append(file) |
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351 # Modified file |
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352 elif l.startswith(b'M'): |
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353 file = self._stripbasepath(l[1:].strip()) |
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354 if not self._exclude(file): |
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355 self.changes[rev].mod_files.append(file) |
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356 # Renamed file (or link) |
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357 elif l.startswith(b'=>'): |
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358 files = l[2:].strip().split(b' ') |
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359 if len(files) == 1: |
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360 files = l[2:].strip().split(b'\t') |
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361 src = self._stripbasepath(files[0]) |
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362 dst = self._stripbasepath(files[1]) |
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363 if not self._exclude(src) and not self._exclude(dst): |
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364 self.changes[rev].ren_files[src] = dst |
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365 # Conversion from file to link or from link to file (modified) |
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366 elif l.startswith(b'ch'): |
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367 file = self._stripbasepath(l[2:].strip()) |
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368 if not self._exclude(file): |
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369 self.changes[rev].mod_files.append(file) |
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370 # Renamed directory |
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371 elif l.startswith(b'/>'): |
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372 dirs = l[2:].strip().split(b' ') |
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373 if len(dirs) == 1: |
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374 dirs = l[2:].strip().split(b'\t') |
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375 src = self._stripbasepath(dirs[0]) |
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376 dst = self._stripbasepath(dirs[1]) |
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377 if not self._exclude(src) and not self._exclude(dst): |
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378 self.changes[rev].ren_dirs[src] = dst |