Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/filelog.py @ 49037:642e31cb55f0

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py3: use class X: instead of class X(object): The inheritance from object is implied in Python 3. So this should be equivalent. This change was generated via an automated search and replace. So there may have been some accidental changes. Differential Revision: https://phab.mercurial-scm.org/D12352
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 21 Feb 2022 13:08:28 -0700
parents 6000f5b25c9b
children 5b65721a75eb
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1 # filelog.py - file history class for mercurial
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2 #
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3 # Copyright 2005-2007 Olivia Mackall <olivia@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8
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9 from .i18n import _
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10 from .node import nullrev
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11 from . import (
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12 error,
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13 revlog,
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14 )
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15 from .interfaces import (
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16 repository,
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17 util as interfaceutil,
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18 )
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19 from .utils import storageutil
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20 from .revlogutils import (
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21 constants as revlog_constants,
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22 rewrite,
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23 )
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24
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25
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26 @interfaceutil.implementer(repository.ifilestorage)
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27 class filelog:
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28 def __init__(self, opener, path):
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29 self._revlog = revlog.revlog(
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30 opener,
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31 # XXX should use the unencoded path
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32 target=(revlog_constants.KIND_FILELOG, path),
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33 radix=b'/'.join((b'data', path)),
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34 censorable=True,
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35 )
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36 # Full name of the user visible file, relative to the repository root.
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37 # Used by LFS.
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38 self._revlog.filename = path
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39 self.nullid = self._revlog.nullid
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40 opts = opener.options
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41 self._fix_issue6528 = opts.get(b'issue6528.fix-incoming', True)
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42
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43 def __len__(self):
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44 return len(self._revlog)
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45
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46 def __iter__(self):
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47 return self._revlog.__iter__()
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48
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49 def hasnode(self, node):
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50 if node in (self.nullid, nullrev):
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51 return False
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52
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53 try:
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54 self._revlog.rev(node)
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55 return True
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56 except (TypeError, ValueError, IndexError, error.LookupError):
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57 return False
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58
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59 def revs(self, start=0, stop=None):
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60 return self._revlog.revs(start=start, stop=stop)
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61
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62 def parents(self, node):
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63 return self._revlog.parents(node)
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64
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65 def parentrevs(self, rev):
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66 return self._revlog.parentrevs(rev)
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67
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68 def rev(self, node):
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69 return self._revlog.rev(node)
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70
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71 def node(self, rev):
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72 return self._revlog.node(rev)
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73
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74 def lookup(self, node):
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75 return storageutil.fileidlookup(
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76 self._revlog, node, self._revlog.display_id
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77 )
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78
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79 def linkrev(self, rev):
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80 return self._revlog.linkrev(rev)
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81
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82 def commonancestorsheads(self, node1, node2):
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83 return self._revlog.commonancestorsheads(node1, node2)
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84
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85 # Used by dagop.blockdescendants().
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86 def descendants(self, revs):
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87 return self._revlog.descendants(revs)
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88
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89 def heads(self, start=None, stop=None):
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90 return self._revlog.heads(start, stop)
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91
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92 # Used by hgweb, children extension.
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93 def children(self, node):
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94 return self._revlog.children(node)
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95
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96 def iscensored(self, rev):
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97 return self._revlog.iscensored(rev)
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98
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99 def revision(self, node, _df=None):
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100 return self._revlog.revision(node, _df=_df)
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101
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102 def rawdata(self, node, _df=None):
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103 return self._revlog.rawdata(node, _df=_df)
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104
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105 def emitrevisions(
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106 self,
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107 nodes,
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108 nodesorder=None,
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109 revisiondata=False,
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110 assumehaveparentrevisions=False,
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111 deltamode=repository.CG_DELTAMODE_STD,
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112 sidedata_helpers=None,
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113 ):
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114 return self._revlog.emitrevisions(
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115 nodes,
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116 nodesorder=nodesorder,
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117 revisiondata=revisiondata,
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118 assumehaveparentrevisions=assumehaveparentrevisions,
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119 deltamode=deltamode,
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120 sidedata_helpers=sidedata_helpers,
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121 )
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122
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123 def addrevision(
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124 self,
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125 revisiondata,
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126 transaction,
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127 linkrev,
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128 p1,
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129 p2,
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130 node=None,
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131 flags=revlog.REVIDX_DEFAULT_FLAGS,
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132 cachedelta=None,
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parents: 42824
diff changeset
133 ):
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parents: 42824
diff changeset
134 return self._revlog.addrevision(
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parents: 42824
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135 revisiondata,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
136 transaction,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
137 linkrev,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
138 p1,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
139 p2,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
140 node=node,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
141 flags=flags,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
142 cachedelta=cachedelta,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
143 )
37497
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
144
43076
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145 def addgroup(
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parents: 42824
diff changeset
146 self,
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parents: 42824
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147 deltas,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
148 linkmapper,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
149 transaction,
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parents: 42824
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150 addrevisioncb=None,
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parents: 43077
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151 duplicaterevisioncb=None,
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152 maybemissingparents=False,
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parents: 42824
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153 ):
40389
1b183edbb68e repository: teach addgroup() to receive data with missing parents
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parents: 40387
diff changeset
154 if maybemissingparents:
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parents: 42824
diff changeset
155 raise error.Abort(
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156 _(
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diff changeset
157 b'revlog storage does not support missing '
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158 b'parents write mode'
43076
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159 )
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parents: 42824
diff changeset
160 )
40389
1b183edbb68e repository: teach addgroup() to receive data with missing parents
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parents: 40387
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161
47815
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
diff changeset
162 with self._revlog._writing(transaction):
47816
c30ca163b45e issue6528: also filter delta on the fly when applying a changegroup
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47815
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163
47817
2813d406b036 issue6528: add a config option to control the fixing on the fly
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47816
diff changeset
164 if self._fix_issue6528:
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47816
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165 deltas = rewrite.filter_delta_issue6528(self._revlog, deltas)
47816
c30ca163b45e issue6528: also filter delta on the fly when applying a changegroup
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47815
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166
47815
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
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167 return self._revlog.addgroup(
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
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168 deltas,
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
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169 linkmapper,
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
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170 transaction,
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
diff changeset
171 addrevisioncb=addrevisioncb,
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
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172 duplicaterevisioncb=duplicaterevisioncb,
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47169
diff changeset
173 )
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174
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Gregory Szorc <gregory.szorc@gmail.com>
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175 def getstrippoint(self, minlink):
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176 return self._revlog.getstrippoint(minlink)
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177
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178 def strip(self, minlink, transaction):
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179 return self._revlog.strip(minlink, transaction)
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180
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39781
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181 def censorrevision(self, tr, node, tombstone=b''):
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parents: 40008
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182 return self._revlog.censorrevision(tr, node, tombstone=tombstone)
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183
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184 def files(self):
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185 return self._revlog.files()
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186
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
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187 def read(self, node):
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188 return storageutil.filtermetadata(self.revision(node))
360
10519e4cbd02 filelog: add metadata support
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189
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mpm@selenic.com
parents: 358
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190 def add(self, text, meta, transaction, link, p1=None, p2=None):
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191 if meta or text.startswith(b'\1\n'):
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parents: 39881
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192 text = storageutil.packmeta(meta, text)
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f7b61ad3c64a revlog: change addrevision to return the new revision, not node
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193 rev = self.addrevision(text, transaction, link, p1, p2)
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194 return self.node(rev)
0
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195
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parents: 1089
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196 def renamed(self, node):
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 40003
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197 return storageutil.filerevisioncopied(self, node)
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198
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199 def size(self, rev):
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200 """return the size of a given revision"""
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201
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parents: 2895
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202 # for revisions with renames, we have to go the slow way
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203 node = self.node(rev)
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204 if self.renamed(node):
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parents: 2895
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205 return len(self.read(node))
24118
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24117
diff changeset
206 if self.iscensored(rev):
22597
58ec36686f0e filelog: censored files compare against empty data, have 0 size
Mike Edgar <adgar@google.com>
parents: 22596
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207 return 0
2898
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parents: 2895
diff changeset
208
11540
2370e270a29a filelog: test behaviour for data starting with "\1\n"
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11539
diff changeset
209 # XXX if self.read(node).startswith("\1\n"), this returns (size+4)
37497
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210 return self._revlog.size(rev)
2898
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parents: 2895
diff changeset
211
2887
05257fd28591 filelog: add hash-based comparisons
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
212 def cmp(self, node, text):
11539
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10706
diff changeset
213 """compare text with a given file revision
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10706
diff changeset
214
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10706
diff changeset
215 returns True if text is different than what is stored.
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 10706
diff changeset
216 """
40008
1470183068b8 storageutil: invert logic of file data comparison
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40007
diff changeset
217 return not storageutil.filedataequivalent(self, node, text)
37497
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parents: 37443
diff changeset
218
39847
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39801
diff changeset
219 def verifyintegrity(self, state):
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39801
diff changeset
220 return self._revlog.verifyintegrity(state)
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39801
diff changeset
221
43076
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diff changeset
222 def storageinfo(
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parents: 42824
diff changeset
223 self,
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parents: 42824
diff changeset
224 exclusivefiles=False,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
225 sharedfiles=False,
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parents: 42824
diff changeset
226 revisionscount=False,
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parents: 42824
diff changeset
227 trackedsize=False,
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parents: 42824
diff changeset
228 storedsize=False,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
229 ):
39874
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39872
diff changeset
230 return self._revlog.storageinfo(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42824
diff changeset
231 exclusivefiles=exclusivefiles,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
232 sharedfiles=sharedfiles,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
233 revisionscount=revisionscount,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42824
diff changeset
234 trackedsize=trackedsize,
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Augie Fackler <augie@google.com>
parents: 42824
diff changeset
235 storedsize=storedsize,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42824
diff changeset
236 )
39874
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39872
diff changeset
237
39799
76f92d208f7a filelog: record what's using attributes
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39798
diff changeset
238 # Used by repo upgrade.
37497
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
239 def clone(self, tr, destrevlog, **kwargs):
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
240 if not isinstance(destrevlog, filelog):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
241 raise error.ProgrammingError(b'expected filelog to clone()')
37497
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
242
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
243 return self._revlog.clone(tr, destrevlog._revlog, **kwargs)
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
244
43076
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diff changeset
245
39781
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
246 class narrowfilelog(filelog):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
247 """Filelog variation to be used with narrow stores."""
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
248
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
249 def __init__(self, opener, path, narrowmatch):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
250 super(narrowfilelog, self).__init__(opener, path)
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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parents: 39310
diff changeset
251 self._narrowmatch = narrowmatch
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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parents: 39310
diff changeset
252
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
253 def renamed(self, node):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
254 res = super(narrowfilelog, self).renamed(node)
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
255
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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parents: 39310
diff changeset
256 # Renames that come from outside the narrowspec are problematic
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
257 # because we may lack the base text for the rename. This can result
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
258 # in code attempting to walk the ancestry or compute a diff
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
259 # encountering a missing revision. We address this by silently
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
260 # removing rename metadata if the source file is outside the
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
261 # narrow spec.
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
262 #
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
263 # A better solution would be to see if the base revision is available,
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
264 # rather than assuming it isn't.
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
265 #
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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parents: 39310
diff changeset
266 # An even better solution would be to teach all consumers of rename
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
267 # metadata that the base revision may not be available.
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
268 #
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
269 # TODO consider better ways of doing this.
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
270 if res and not self._narrowmatch(res[0]):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
271 return None
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272
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273 return res
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274
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275 def size(self, rev):
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276 # Because we have a custom renamed() that may lie, we need to call
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277 # the base renamed() to report accurate results.
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278 node = self.node(rev)
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279 if super(narrowfilelog, self).renamed(node):
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280 return len(self.read(node))
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281 else:
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282 return super(narrowfilelog, self).size(rev)
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283
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284 def cmp(self, node, text):
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285 # We don't call `super` because narrow parents can be buggy in case of a
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286 # ambiguous dirstate. Always take the slow path until there is a better
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287 # fix, see issue6150.
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288
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289 # Censored files compare against the empty file.
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290 if self.iscensored(self.rev(node)):
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291 return text != b''
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292
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293 return self.read(node) != text