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annotate mercurial/metadata.py @ 45607:db11f8f39caf

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rhg: use `.or(Err(Error))` not `.map_err(|_| Error)` (D9100#inline-15067) Differential Revision: https://phab.mercurial-scm.org/D9109
author Antoine cezar<acezar@chwitlabs.fr>
date Mon, 28 Sep 2020 16:54:35 +0200
parents 3d5b2b8e93fd
children e5578dbe36cb
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1 # metadata.py -- code related to various metadata computation and access.
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2 #
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3 # Copyright 2019 Google, Inc <martinvonz@google.com>
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4 # Copyright 2020 Pierre-Yves David <pierre-yves.david@octobus.net>
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5 #
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6 # This software may be used and distributed according to the terms of the
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7 # GNU General Public License version 2 or any later version.
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8 from __future__ import absolute_import, print_function
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9
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10 import multiprocessing
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11
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12 from . import (
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13 error,
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14 node,
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15 pycompat,
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16 util,
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17 )
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18
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19 from .revlogutils import (
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20 flagutil as sidedataflag,
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21 sidedata as sidedatamod,
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22 )
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23
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24
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25 class ChangingFiles(object):
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26 """A class recording the changes made to a file by a changeset
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27
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28 Actions performed on files are gathered into 3 sets:
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29
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30 - added: files actively added in the changeset.
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31 - removed: files removed in the revision
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32 - touched: files affected by the merge
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33
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34 and copies information is held by 2 mappings
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35
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36 - copied_from_p1: {"<new-name>": "<source-name-in-p1>"} mapping for copies
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37 - copied_from_p2: {"<new-name>": "<source-name-in-p2>"} mapping for copies
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38
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39 See their inline help for details.
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40 """
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41
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42 def __init__(
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43 self,
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44 touched=None,
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45 added=None,
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46 removed=None,
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47 p1_copies=None,
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48 p2_copies=None,
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49 ):
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50 self._added = set(() if added is None else added)
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51 self._removed = set(() if removed is None else removed)
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52 self._touched = set(() if touched is None else touched)
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53 self._touched.update(self._added)
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54 self._touched.update(self._removed)
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55 self._p1_copies = dict(() if p1_copies is None else p1_copies)
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56 self._p2_copies = dict(() if p2_copies is None else p2_copies)
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57
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58 def __eq__(self, other):
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59 return (
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60 self.added == other.added
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61 and self.removed == other.removed
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62 and self.touched == other.touched
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63 and self.copied_from_p1 == other.copied_from_p1
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64 and self.copied_from_p2 == other.copied_from_p2
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65 )
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66
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67 @property
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68 def added(self):
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69 """files actively added in the changeset
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70
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71 Any file present in that revision that was absent in all the changeset's
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72 parents.
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73
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74 In case of merge, this means a file absent in one of the parents but
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75 existing in the other will *not* be contained in this set. (They were
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76 added by an ancestor)
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77 """
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78 return frozenset(self._added)
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79
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80 def mark_added(self, filename):
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81 self._added.add(filename)
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82 self._touched.add(filename)
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83
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84 def update_added(self, filenames):
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85 for f in filenames:
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86 self.mark_added(f)
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87
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88 @property
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89 def removed(self):
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90 """files actively removed by the changeset
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91
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92 In case of merge this will only contain the set of files removing "new"
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93 content. For any file absent in the current changeset:
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94
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95 a) If the file exists in both parents, it is clearly "actively" removed
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96 by this changeset.
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97
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98 b) If a file exists in only one parent and in none of the common
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99 ancestors, then the file was newly added in one of the merged branches
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100 and then got "actively" removed.
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101
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102 c) If a file exists in only one parent and at least one of the common
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103 ancestors using the same filenode, then the file was unchanged on one
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104 side and deleted on the other side. The merge "passively" propagated
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105 that deletion, but didn't "actively" remove the file. In this case the
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106 file is *not* included in the `removed` set.
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107
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108 d) If a file exists in only one parent and at least one of the common
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109 ancestors using a different filenode, then the file was changed on one
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110 side and removed on the other side. The merge process "actively"
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111 decided to drop the new change and delete the file. Unlike in the
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112 previous case, (c), the file included in the `removed` set.
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113
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114 Summary table for merge:
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115
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116 case | exists in parents | exists in gca || removed
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117 (a) | both | * || yes
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118 (b) | one | none || yes
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119 (c) | one | same filenode || no
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120 (d) | one | new filenode || yes
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121 """
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122 return frozenset(self._removed)
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123
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124 def mark_removed(self, filename):
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125 self._removed.add(filename)
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126 self._touched.add(filename)
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127
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128 def update_removed(self, filenames):
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129 for f in filenames:
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130 self.mark_removed(f)
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131
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132 @property
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133 def touched(self):
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134 """files either actively modified, added or removed"""
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135 return frozenset(self._touched)
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136
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137 def mark_touched(self, filename):
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138 self._touched.add(filename)
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139
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140 def update_touched(self, filenames):
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141 for f in filenames:
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142 self.mark_touched(f)
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143
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144 @property
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145 def copied_from_p1(self):
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146 return self._p1_copies.copy()
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147
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148 def mark_copied_from_p1(self, source, dest):
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149 self._p1_copies[dest] = source
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150
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151 def update_copies_from_p1(self, copies):
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152 for dest, source in copies.items():
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153 self.mark_copied_from_p1(source, dest)
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154
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155 @property
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156 def copied_from_p2(self):
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157 return self._p2_copies.copy()
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158
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159 def mark_copied_from_p2(self, source, dest):
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160 self._p2_copies[dest] = source
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161
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162 def update_copies_from_p2(self, copies):
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163 for dest, source in copies.items():
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164 self.mark_copied_from_p2(source, dest)
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165
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166
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167 def computechangesetfilesadded(ctx):
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168 """return the list of files added in a changeset
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169 """
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170 added = []
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171 for f in ctx.files():
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172 if not any(f in p for p in ctx.parents()):
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173 added.append(f)
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174 return added
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175
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176
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177 def get_removal_filter(ctx, x=None):
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178 """return a function to detect files "wrongly" detected as `removed`
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179
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180 When a file is removed relative to p1 in a merge, this
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181 function determines whether the absence is due to a
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182 deletion from a parent, or whether the merge commit
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183 itself deletes the file. We decide this by doing a
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184 simplified three way merge of the manifest entry for
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185 the file. There are two ways we decide the merge
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186 itself didn't delete a file:
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187 - neither parent (nor the merge) contain the file
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188 - exactly one parent contains the file, and that
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189 parent has the same filelog entry as the merge
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190 ancestor (or all of them if there two). In other
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191 words, that parent left the file unchanged while the
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192 other one deleted it.
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193 One way to think about this is that deleting a file is
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194 similar to emptying it, so the list of changed files
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195 should be similar either way. The computation
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196 described above is not done directly in _filecommit
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197 when creating the list of changed files, however
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198 it does something very similar by comparing filelog
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199 nodes.
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200 """
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201
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202 if x is not None:
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203 p1, p2, m1, m2 = x
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204 else:
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205 p1 = ctx.p1()
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206 p2 = ctx.p2()
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207 m1 = p1.manifest()
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208 m2 = p2.manifest()
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209
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210 @util.cachefunc
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211 def mas():
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212 p1n = p1.node()
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213 p2n = p2.node()
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214 cahs = ctx.repo().changelog.commonancestorsheads(p1n, p2n)
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215 if not cahs:
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216 cahs = [node.nullrev]
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217 return [ctx.repo()[r].manifest() for r in cahs]
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218
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219 def deletionfromparent(f):
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220 if f in m1:
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221 return f not in m2 and all(
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222 f in ma and ma.find(f) == m1.find(f) for ma in mas()
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223 )
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224 elif f in m2:
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225 return all(f in ma and ma.find(f) == m2.find(f) for ma in mas())
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226 else:
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227 return True
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228
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229 return deletionfromparent
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230
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231
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232 def computechangesetfilesremoved(ctx):
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233 """return the list of files removed in a changeset
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234 """
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235 removed = []
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236 for f in ctx.files():
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237 if f not in ctx:
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238 removed.append(f)
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239 if removed:
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240 rf = get_removal_filter(ctx)
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241 removed = [r for r in removed if not rf(r)]
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242 return removed
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243
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244
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245 def computechangesetcopies(ctx):
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246 """return the copies data for a changeset
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247
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248 The copies data are returned as a pair of dictionnary (p1copies, p2copies).
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249
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250 Each dictionnary are in the form: `{newname: oldname}`
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251 """
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252 p1copies = {}
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253 p2copies = {}
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254 p1 = ctx.p1()
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255 p2 = ctx.p2()
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256 narrowmatch = ctx._repo.narrowmatch()
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257 for dst in ctx.files():
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258 if not narrowmatch(dst) or dst not in ctx:
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259 continue
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260 copied = ctx[dst].renamed()
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261 if not copied:
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262 continue
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263 src, srcnode = copied
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264 if src in p1 and p1[src].filenode() == srcnode:
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265 p1copies[dst] = src
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266 elif src in p2 and p2[src].filenode() == srcnode:
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267 p2copies[dst] = src
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268 return p1copies, p2copies
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269
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270
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271 def encodecopies(files, copies):
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272 items = []
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273 for i, dst in enumerate(files):
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274 if dst in copies:
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275 items.append(b'%d\0%s' % (i, copies[dst]))
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276 if len(items) != len(copies):
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277 raise error.ProgrammingError(
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278 b'some copy targets missing from file list'
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279 )
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280 return b"\n".join(items)
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281
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282
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283 def decodecopies(files, data):
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284 try:
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285 copies = {}
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286 if not data:
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287 return copies
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288 for l in data.split(b'\n'):
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289 strindex, src = l.split(b'\0')
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290 i = int(strindex)
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291 dst = files[i]
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292 copies[dst] = src
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293 return copies
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294 except (ValueError, IndexError):
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295 # Perhaps someone had chosen the same key name (e.g. "p1copies") and
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296 # used different syntax for the value.
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297 return None
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298
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299
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300 def encodefileindices(files, subset):
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301 subset = set(subset)
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302 indices = []
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303 for i, f in enumerate(files):
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304 if f in subset:
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305 indices.append(b'%d' % i)
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306 return b'\n'.join(indices)
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307
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308
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309 def decodefileindices(files, data):
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310 try:
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311 subset = []
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312 if not data:
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313 return subset
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314 for strindex in data.split(b'\n'):
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315 i = int(strindex)
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316 if i < 0 or i >= len(files):
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317 return None
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318 subset.append(files[i])
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319 return subset
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320 except (ValueError, IndexError):
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321 # Perhaps someone had chosen the same key name (e.g. "added") and
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322 # used different syntax for the value.
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323 return None
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324
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325
45572
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326 def encode_files_sidedata(files):
45346
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327 sortedfiles = sorted(files.touched)
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328 sidedata = {}
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329 p1copies = files.copied_from_p1
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330 if p1copies:
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331 p1copies = encodecopies(sortedfiles, p1copies)
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332 sidedata[sidedatamod.SD_P1COPIES] = p1copies
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333 p2copies = files.copied_from_p2
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334 if p2copies:
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335 p2copies = encodecopies(sortedfiles, p2copies)
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336 sidedata[sidedatamod.SD_P2COPIES] = p2copies
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337 filesadded = files.added
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338 if filesadded:
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339 filesadded = encodefileindices(sortedfiles, filesadded)
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340 sidedata[sidedatamod.SD_FILESADDED] = filesadded
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341 filesremoved = files.removed
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342 if filesremoved:
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343 filesremoved = encodefileindices(sortedfiles, filesremoved)
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344 sidedata[sidedatamod.SD_FILESREMOVED] = filesremoved
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345 if not sidedata:
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346 sidedata = None
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347 return sidedata
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348
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349
45574
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diff changeset
350 def decode_files_sidedata(changelogrevision, sidedata):
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351 """Return a ChangingFiles instance from a changelogrevision using sidata
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diff changeset
352 """
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diff changeset
353 touched = changelogrevision.files
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354
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diff changeset
355 rawindices = sidedata.get(sidedatamod.SD_FILESADDED)
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diff changeset
356 added = decodefileindices(touched, rawindices)
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diff changeset
357
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diff changeset
358 rawindices = sidedata.get(sidedatamod.SD_FILESREMOVED)
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diff changeset
359 removed = decodefileindices(touched, rawindices)
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diff changeset
360
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diff changeset
361 rawcopies = sidedata.get(sidedatamod.SD_P1COPIES)
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diff changeset
362 p1_copies = decodecopies(touched, rawcopies)
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diff changeset
363
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diff changeset
364 rawcopies = sidedata.get(sidedatamod.SD_P2COPIES)
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diff changeset
365 p2_copies = decodecopies(touched, rawcopies)
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parents: 45572
diff changeset
366
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parents: 45572
diff changeset
367 return ChangingFiles(
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parents: 45572
diff changeset
368 touched=touched,
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parents: 45572
diff changeset
369 added=added,
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parents: 45572
diff changeset
370 removed=removed,
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parents: 45572
diff changeset
371 p1_copies=p1_copies,
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parents: 45572
diff changeset
372 p2_copies=p2_copies,
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parents: 45572
diff changeset
373 )
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parents: 45572
diff changeset
374
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diff changeset
375
44981
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parents:
diff changeset
376 def _getsidedata(srcrepo, rev):
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parents:
diff changeset
377 ctx = srcrepo[rev]
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parents:
diff changeset
378 filescopies = computechangesetcopies(ctx)
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parents:
diff changeset
379 filesadded = computechangesetfilesadded(ctx)
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parents:
diff changeset
380 filesremoved = computechangesetfilesremoved(ctx)
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parents:
diff changeset
381 sidedata = {}
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parents:
diff changeset
382 if any([filescopies, filesadded, filesremoved]):
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parents:
diff changeset
383 sortedfiles = sorted(ctx.files())
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parents:
diff changeset
384 p1copies, p2copies = filescopies
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parents:
diff changeset
385 p1copies = encodecopies(sortedfiles, p1copies)
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parents:
diff changeset
386 p2copies = encodecopies(sortedfiles, p2copies)
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parents:
diff changeset
387 filesadded = encodefileindices(sortedfiles, filesadded)
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parents:
diff changeset
388 filesremoved = encodefileindices(sortedfiles, filesremoved)
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parents:
diff changeset
389 if p1copies:
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parents:
diff changeset
390 sidedata[sidedatamod.SD_P1COPIES] = p1copies
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parents:
diff changeset
391 if p2copies:
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parents:
diff changeset
392 sidedata[sidedatamod.SD_P2COPIES] = p2copies
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parents:
diff changeset
393 if filesadded:
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parents:
diff changeset
394 sidedata[sidedatamod.SD_FILESADDED] = filesadded
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parents:
diff changeset
395 if filesremoved:
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parents:
diff changeset
396 sidedata[sidedatamod.SD_FILESREMOVED] = filesremoved
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parents:
diff changeset
397 return sidedata
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parents:
diff changeset
398
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parents:
diff changeset
399
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parents:
diff changeset
400 def getsidedataadder(srcrepo, destrepo):
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parents:
diff changeset
401 use_w = srcrepo.ui.configbool(b'experimental', b'worker.repository-upgrade')
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parents:
diff changeset
402 if pycompat.iswindows or not use_w:
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parents:
diff changeset
403 return _get_simple_sidedata_adder(srcrepo, destrepo)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
404 else:
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parents:
diff changeset
405 return _get_worker_sidedata_adder(srcrepo, destrepo)
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parents:
diff changeset
406
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parents:
diff changeset
407
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parents:
diff changeset
408 def _sidedata_worker(srcrepo, revs_queue, sidedata_queue, tokens):
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parents:
diff changeset
409 """The function used by worker precomputing sidedata
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parents:
diff changeset
410
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parents:
diff changeset
411 It read an input queue containing revision numbers
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parents:
diff changeset
412 It write in an output queue containing (rev, <sidedata-map>)
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parents:
diff changeset
413
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parents:
diff changeset
414 The `None` input value is used as a stop signal.
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parents:
diff changeset
415
4c1d39215034 metadata: move computation related to files touched in a dedicated module
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parents:
diff changeset
416 The `tokens` semaphore is user to avoid having too many unprocessed
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parents:
diff changeset
417 entries. The workers needs to acquire one token before fetching a task.
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parents:
diff changeset
418 They will be released by the consumer of the produced data.
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parents:
diff changeset
419 """
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parents:
diff changeset
420 tokens.acquire()
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parents:
diff changeset
421 rev = revs_queue.get()
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parents:
diff changeset
422 while rev is not None:
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
423 data = _getsidedata(srcrepo, rev)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
424 sidedata_queue.put((rev, data))
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
425 tokens.acquire()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
426 rev = revs_queue.get()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
427 # processing of `None` is completed, release the token.
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
428 tokens.release()
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parents:
diff changeset
429
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parents:
diff changeset
430
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parents:
diff changeset
431 BUFF_PER_WORKER = 50
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parents:
diff changeset
432
4c1d39215034 metadata: move computation related to files touched in a dedicated module
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parents:
diff changeset
433
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
434 def _get_worker_sidedata_adder(srcrepo, destrepo):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
435 """The parallel version of the sidedata computation
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
436
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
437 This code spawn a pool of worker that precompute a buffer of sidedata
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
438 before we actually need them"""
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
439 # avoid circular import copies -> scmutil -> worker -> copies
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
440 from . import worker
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
441
4c1d39215034 metadata: move computation related to files touched in a dedicated module
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parents:
diff changeset
442 nbworkers = worker._numworkers(srcrepo.ui)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
443
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
444 tokens = multiprocessing.BoundedSemaphore(nbworkers * BUFF_PER_WORKER)
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
445 revsq = multiprocessing.Queue()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
446 sidedataq = multiprocessing.Queue()
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
447
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
448 assert srcrepo.filtername is None
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
449 # queue all tasks beforehand, revision numbers are small and it make
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
450 # synchronisation simpler
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
451 #
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
452 # Since the computation for each node can be quite expensive, the overhead
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
453 # of using a single queue is not revelant. In practice, most computation
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
454 # are fast but some are very expensive and dominate all the other smaller
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
455 # cost.
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
456 for r in srcrepo.changelog.revs():
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
457 revsq.put(r)
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
458 # queue the "no more tasks" markers
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
459 for i in range(nbworkers):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
460 revsq.put(None)
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
461
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
462 allworkers = []
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
463 for i in range(nbworkers):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
464 args = (srcrepo, revsq, sidedataq, tokens)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
465 w = multiprocessing.Process(target=_sidedata_worker, args=args)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
466 allworkers.append(w)
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
467 w.start()
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
468
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
469 # dictionnary to store results for revision higher than we one we are
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
470 # looking for. For example, if we need the sidedatamap for 42, and 43 is
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
471 # received, when shelve 43 for later use.
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
472 staging = {}
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
473
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
474 def sidedata_companion(revlog, rev):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
475 sidedata = {}
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
476 if util.safehasattr(revlog, b'filteredrevs'): # this is a changelog
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
477 # Is the data previously shelved ?
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parents:
diff changeset
478 sidedata = staging.pop(rev, None)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
479 if sidedata is None:
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
480 # look at the queued result until we find the one we are lookig
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
481 # for (shelve the other ones)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
482 r, sidedata = sidedataq.get()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
483 while r != rev:
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
484 staging[r] = sidedata
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
485 r, sidedata = sidedataq.get()
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
486 tokens.release()
4c1d39215034 metadata: move computation related to files touched in a dedicated module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
487 return False, (), sidedata
4c1d39215034 metadata: move computation related to files touched in a dedicated module
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parents:
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488
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489 return sidedata_companion
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490
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491
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492 def _get_simple_sidedata_adder(srcrepo, destrepo):
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493 """The simple version of the sidedata computation
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494
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495 It just compute it in the same thread on request"""
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496
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497 def sidedatacompanion(revlog, rev):
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498 sidedata = {}
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499 if util.safehasattr(revlog, 'filteredrevs'): # this is a changelog
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500 sidedata = _getsidedata(srcrepo, rev)
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501 return False, (), sidedata
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502
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503 return sidedatacompanion
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504
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505
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506 def getsidedataremover(srcrepo, destrepo):
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507 def sidedatacompanion(revlog, rev):
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508 f = ()
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509 if util.safehasattr(revlog, 'filteredrevs'): # this is a changelog
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510 if revlog.flags(rev) & sidedataflag.REVIDX_SIDEDATA:
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511 f = (
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512 sidedatamod.SD_P1COPIES,
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513 sidedatamod.SD_P2COPIES,
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514 sidedatamod.SD_FILESADDED,
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515 sidedatamod.SD_FILESREMOVED,
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516 )
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517 return False, f, {}
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518
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519 return sidedatacompanion