Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/filelog.py @ 39797:87eeb6966220

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filelog: stop proxying _addrevision() (API) There are no callers of this API in core. And I'm not sure why this proxy was added in the first place, as the commit that added it (1541e1a8e87d) didn't appear to have any callers in the repo either. Who knows. Differential Revision: https://phab.mercurial-scm.org/D4659
author Gregory Szorc <gregory.szorc@gmail.com>
date Tue, 18 Sep 2018 18:03:41 -0700
parents 6d6ddcfa62a6
children 03bedf1d09fc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 Matt Mackall <mpm@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 from __future__ import absolute_import
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9
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10 from . import (
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11 error,
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12 repository,
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13 revlog,
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14 )
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15 from .utils import (
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16 interfaceutil,
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17 )
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18
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19 @interfaceutil.implementer(repository.ifilestorage)
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20 class filelog(object):
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21 def __init__(self, opener, path):
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22 self._revlog = revlog.revlog(opener,
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23 '/'.join(('data', path + '.i')),
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24 censorable=True)
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25 # full name of the user visible file, relative to the repository root
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26 self.filename = path
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27 self.index = self._revlog.index
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28 self.version = self._revlog.version
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29 self._generaldelta = self._revlog._generaldelta
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30
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31 def __len__(self):
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32 return len(self._revlog)
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33
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34 def __iter__(self):
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35 return self._revlog.__iter__()
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36
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37 def revs(self, start=0, stop=None):
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38 return self._revlog.revs(start=start, stop=stop)
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39
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40 def parents(self, node):
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41 return self._revlog.parents(node)
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42
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43 def parentrevs(self, rev):
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44 return self._revlog.parentrevs(rev)
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45
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46 def rev(self, node):
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47 return self._revlog.rev(node)
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48
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49 def node(self, rev):
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50 return self._revlog.node(rev)
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51
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52 def lookup(self, node):
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53 return self._revlog.lookup(node)
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54
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55 def linkrev(self, rev):
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56 return self._revlog.linkrev(rev)
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57
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58 def flags(self, rev):
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59 return self._revlog.flags(rev)
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60
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61 def commonancestorsheads(self, node1, node2):
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62 return self._revlog.commonancestorsheads(node1, node2)
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63
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64 def descendants(self, revs):
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65 return self._revlog.descendants(revs)
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66
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67 def headrevs(self):
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68 return self._revlog.headrevs()
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69
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70 def heads(self, start=None, stop=None):
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71 return self._revlog.heads(start, stop)
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72
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73 def children(self, node):
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74 return self._revlog.children(node)
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75
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76 def deltaparent(self, rev):
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77 return self._revlog.deltaparent(rev)
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78
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79 def iscensored(self, rev):
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80 return self._revlog.iscensored(rev)
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81
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82 def rawsize(self, rev):
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83 return self._revlog.rawsize(rev)
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84
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85 def checkhash(self, text, node, p1=None, p2=None, rev=None):
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86 return self._revlog.checkhash(text, node, p1=p1, p2=p2, rev=rev)
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87
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88 def revision(self, node, _df=None, raw=False):
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89 return self._revlog.revision(node, _df=_df, raw=raw)
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90
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91 def revdiff(self, rev1, rev2):
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92 return self._revlog.revdiff(rev1, rev2)
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93
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94 def emitrevisiondeltas(self, requests):
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95 return self._revlog.emitrevisiondeltas(requests)
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96
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97 def addrevision(self, revisiondata, transaction, linkrev, p1, p2,
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98 node=None, flags=revlog.REVIDX_DEFAULT_FLAGS,
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99 cachedelta=None):
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100 return self._revlog.addrevision(revisiondata, transaction, linkrev,
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101 p1, p2, node=node, flags=flags,
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102 cachedelta=cachedelta)
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103
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104 def addgroup(self, deltas, linkmapper, transaction, addrevisioncb=None):
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105 return self._revlog.addgroup(deltas, linkmapper, transaction,
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106 addrevisioncb=addrevisioncb)
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107
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108 def getstrippoint(self, minlink):
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109 return self._revlog.getstrippoint(minlink)
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110
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111 def strip(self, minlink, transaction):
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112 return self._revlog.strip(minlink, transaction)
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113
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114 def censorrevision(self, tr, node, tombstone=b''):
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115 return self._revlog.censorrevision(node, tombstone=tombstone)
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116
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117 def files(self):
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118 return self._revlog.files()
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119
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120 def checksize(self):
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121 return self._revlog.checksize()
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122
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123 def read(self, node):
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124 t = self.revision(node)
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125 if not t.startswith('\1\n'):
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126 return t
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127 s = t.index('\1\n', 2)
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128 return t[s + 2:]
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129
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130 def add(self, text, meta, transaction, link, p1=None, p2=None):
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d7d68d27ebe5 Reapply startswith() changes that got lost with stale edit
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parents: 681
diff changeset
131 if meta or text.startswith('\1\n'):
37442
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diff changeset
132 text = revlog.packmeta(meta, text)
0
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parents:
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133 return self.addrevision(text, transaction, link, p1, p2)
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134
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135 def renamed(self, node):
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parents: 7622
diff changeset
136 if self.parents(node)[0] != revlog.nullid:
1116
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parents: 1089
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137 return False
13240
e5060aa22043 filelog: move metadata parsing to a helper function
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parents: 11541
diff changeset
138 t = self.revision(node)
37442
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parents: 37441
diff changeset
139 m = revlog.parsemeta(t)[0]
37833
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parents: 37810
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140 # copy and copyrev occur in pairs. In rare cases due to bugs,
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141 # one can occur without the other.
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diff changeset
142 if m and "copy" in m and "copyrev" in m:
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parents: 7622
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143 return (m["copy"], revlog.bin(m["copyrev"]))
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144 return False
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145
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146 def size(self, rev):
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147 """return the size of a given revision"""
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148
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149 # for revisions with renames, we have to go the slow way
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150 node = self.node(rev)
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151 if self.renamed(node):
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152 return len(self.read(node))
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153 if self.iscensored(rev):
22597
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154 return 0
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155
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156 # XXX if self.read(node).startswith("\1\n"), this returns (size+4)
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157 return self._revlog.size(rev)
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158
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159 def cmp(self, node, text):
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160 """compare text with a given file revision
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161
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162 returns True if text is different than what is stored.
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163 """
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164
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165 t = text
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166 if text.startswith('\1\n'):
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167 t = '\1\n\1\n' + text
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168
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169 samehashes = not self._revlog.cmp(node, t)
11541
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diff changeset
170 if samehashes:
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171 return False
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172
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173 # censored files compare against the empty file
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diff changeset
174 if self.iscensored(self.rev(node)):
22597
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parents: 22596
diff changeset
175 return text != ''
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176
11541
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177 # renaming a file produces a different hash, even if the data
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parents: 11540
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178 # remains unchanged. Check if it's the case (slow):
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diff changeset
179 if self.renamed(node):
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180 t2 = self.read(node)
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parents: 2890
diff changeset
181 return t2 != text
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diff changeset
182
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183 return True
37497
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diff changeset
184
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185 @property
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186 def filename(self):
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diff changeset
187 return self._revlog.filename
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188
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189 @filename.setter
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190 def filename(self, value):
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parents: 37443
diff changeset
191 self._revlog.filename = value
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diff changeset
192
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diff changeset
193 # TODO these aren't part of the interface and aren't internal methods.
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parents: 37443
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194 # Callers should be fixed to not use them.
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diff changeset
195 @property
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
196 def indexfile(self):
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
197 return self._revlog.indexfile
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diff changeset
198
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diff changeset
199 @indexfile.setter
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diff changeset
200 def indexfile(self, value):
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
201 self._revlog.indexfile = value
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diff changeset
202
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parents: 37443
diff changeset
203 @property
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
204 def datafile(self):
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
205 return self._revlog.datafile
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
206
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
207 @property
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
208 def opener(self):
1541e1a8e87d filelog: wrap revlog instead of inheriting it (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
209 return self._revlog.opener
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
210
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
211 def clone(self, tr, destrevlog, **kwargs):
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parents: 37443
diff changeset
212 if not isinstance(destrevlog, filelog):
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parents: 37443
diff changeset
213 raise error.ProgrammingError('expected filelog to clone()')
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parents: 37443
diff changeset
214
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
215 return self._revlog.clone(tr, destrevlog._revlog, **kwargs)
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 37443
diff changeset
216
39781
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diff changeset
217 class narrowfilelog(filelog):
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218 """Filelog variation to be used with narrow stores."""
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219
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diff changeset
220 def __init__(self, opener, path, narrowmatch):
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parents: 39310
diff changeset
221 super(narrowfilelog, self).__init__(opener, path)
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diff changeset
222 self._narrowmatch = narrowmatch
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diff changeset
223
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diff changeset
224 def renamed(self, node):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
225 res = super(narrowfilelog, self).renamed(node)
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parents: 39310
diff changeset
226
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parents: 39310
diff changeset
227 # Renames that come from outside the narrowspec are problematic
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
228 # because we may lack the base text for the rename. This can result
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parents: 39310
diff changeset
229 # in code attempting to walk the ancestry or compute a diff
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parents: 39310
diff changeset
230 # encountering a missing revision. We address this by silently
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parents: 39310
diff changeset
231 # removing rename metadata if the source file is outside the
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parents: 39310
diff changeset
232 # narrow spec.
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diff changeset
233 #
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parents: 39310
diff changeset
234 # 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
235 # rather than assuming it isn't.
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Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
236 #
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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parents: 39310
diff changeset
237 # An even better solution would be to teach all consumers of rename
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parents: 39310
diff changeset
238 # metadata that the base revision may not be available.
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parents: 39310
diff changeset
239 #
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diff changeset
240 # TODO consider better ways of doing this.
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parents: 39310
diff changeset
241 if res and not self._narrowmatch(res[0]):
3e801ffd7269 filelog: custom filelog to be used with narrow repos
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diff changeset
242 return None
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diff changeset
243
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diff changeset
244 return res
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diff changeset
245
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diff changeset
246 def size(self, rev):
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diff changeset
247 # Because we have a custom renamed() that may lie, we need to call
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diff changeset
248 # the base renamed() to report accurate results.
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diff changeset
249 node = self.node(rev)
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diff changeset
250 if super(narrowfilelog, self).renamed(node):
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diff changeset
251 return len(self.read(node))
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diff changeset
252 else:
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diff changeset
253 return super(narrowfilelog, self).size(rev)
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parents: 39310
diff changeset
254
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diff changeset
255 def cmp(self, node, text):
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parents: 39310
diff changeset
256 different = super(narrowfilelog, self).cmp(node, text)
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diff changeset
257
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diff changeset
258 # Because renamed() may lie, we may get false positives for
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parents: 39310
diff changeset
259 # different content. Check for this by comparing against the original
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parents: 39310
diff changeset
260 # renamed() implementation.
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parents: 39310
diff changeset
261 if different:
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
262 if 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
263 t2 = self.read(node)
3e801ffd7269 filelog: custom filelog to be used with narrow repos
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
264 return t2 != text
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
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39310
diff changeset
266 return different