annotate mercurial/unionrepo.py @ 36220:874209855f5c

httppeer: remove httpspeer All it did was verify at construction time that Mercurial supports TLS. instance() is what's used to construct peer instances. So we can just inline this check into that function and do away with the type variant. Differential Revision: https://phab.mercurial-scm.org/D2216
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 12 Feb 2018 17:14:29 -0800
parents 21fc747e1bc5
children 1541e1a8e87d
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1 # unionrepo.py - repository class for viewing union of repository changesets
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2 #
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3 # Derived from bundlerepo.py
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4 # Copyright 2006, 2007 Benoit Boissinot <bboissin@gmail.com>
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5 # Copyright 2013 Unity Technologies, Mads Kiilerich <madski@unity3d.com>
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6 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 """Repository class for "in-memory pull" of one local repository to another,
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11 allowing operations like diff and log with revsets.
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12 """
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13
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14 from __future__ import absolute_import
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15
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16 from .i18n import _
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17 from .node import nullid
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18
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19 from . import (
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20 changelog,
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21 cmdutil,
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22 error,
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23 filelog,
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24 localrepo,
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25 manifest,
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26 mdiff,
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27 pathutil,
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28 pycompat,
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29 revlog,
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30 util,
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31 vfs as vfsmod,
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32 )
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33
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34 class unionrevlog(revlog.revlog):
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35 def __init__(self, opener, indexfile, revlog2, linkmapper):
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36 # How it works:
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37 # To retrieve a revision, we just need to know the node id so we can
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38 # look it up in revlog2.
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39 #
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40 # To differentiate a rev in the second revlog from a rev in the revlog,
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41 # we check revision against repotiprev.
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42 opener = vfsmod.readonlyvfs(opener)
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43 revlog.revlog.__init__(self, opener, indexfile)
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44 self.revlog2 = revlog2
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45
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46 n = len(self)
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47 self.repotiprev = n - 1
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48 self.bundlerevs = set() # used by 'bundle()' revset expression
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49 for rev2 in self.revlog2:
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50 rev = self.revlog2.index[rev2]
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51 # rev numbers - in revlog2, very different from self.rev
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52 _start, _csize, _rsize, base, linkrev, p1rev, p2rev, node = rev
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53 flags = _start & 0xFFFF
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54
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55 if linkmapper is None: # link is to same revlog
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56 assert linkrev == rev2 # we never link back
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57 link = n
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58 else: # rev must be mapped from repo2 cl to unified cl by linkmapper
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59 link = linkmapper(linkrev)
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60
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61 if linkmapper is not None: # link is to same revlog
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62 base = linkmapper(base)
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63
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64 if node in self.nodemap:
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65 # this happens for the common revlog revisions
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66 self.bundlerevs.add(self.nodemap[node])
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67 continue
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68
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69 p1node = self.revlog2.node(p1rev)
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70 p2node = self.revlog2.node(p2rev)
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71
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72 e = (flags, None, None, base,
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73 link, self.rev(p1node), self.rev(p2node), node)
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74 self.index.insert(-1, e)
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75 self.nodemap[node] = n
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76 self.bundlerevs.add(n)
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77 n += 1
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78
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79 def _chunk(self, rev):
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80 if rev <= self.repotiprev:
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81 return revlog.revlog._chunk(self, rev)
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82 return self.revlog2._chunk(self.node(rev))
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83
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84 def revdiff(self, rev1, rev2):
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85 """return or calculate a delta between two revisions"""
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86 if rev1 > self.repotiprev and rev2 > self.repotiprev:
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87 return self.revlog2.revdiff(
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88 self.revlog2.rev(self.node(rev1)),
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89 self.revlog2.rev(self.node(rev2)))
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90 elif rev1 <= self.repotiprev and rev2 <= self.repotiprev:
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91 return self.baserevdiff(rev1, rev2)
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92
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93 return mdiff.textdiff(self.revision(rev1), self.revision(rev2))
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94
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95 def revision(self, nodeorrev, raw=False):
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96 """return an uncompressed revision of a given node or revision
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97 number.
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98 """
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99 if isinstance(nodeorrev, int):
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100 rev = nodeorrev
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101 node = self.node(rev)
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102 else:
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103 node = nodeorrev
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104 rev = self.rev(node)
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105
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106 if node == nullid:
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107 return ""
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108
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109 if rev > self.repotiprev:
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110 text = self.revlog2.revision(node)
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111 self._cache = (node, rev, text)
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112 else:
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113 text = self.baserevision(rev)
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114 # already cached
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115 return text
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116
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117 def baserevision(self, nodeorrev):
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118 # Revlog subclasses may override 'revision' method to modify format of
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119 # content retrieved from revlog. To use unionrevlog with such class one
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120 # needs to override 'baserevision' and make more specific call here.
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121 return revlog.revlog.revision(self, nodeorrev)
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122
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123 def baserevdiff(self, rev1, rev2):
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124 # Exists for the same purpose as baserevision.
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125 return revlog.revlog.revdiff(self, rev1, rev2)
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126
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127 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
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128 raise NotImplementedError
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diff changeset
129 def addgroup(self, deltas, transaction, addrevisioncb=None):
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130 raise NotImplementedError
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diff changeset
131 def strip(self, rev, minlink):
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132 raise NotImplementedError
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diff changeset
133 def checksize(self):
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diff changeset
134 raise NotImplementedError
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parents:
diff changeset
135
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diff changeset
136 class unionchangelog(unionrevlog, changelog.changelog):
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137 def __init__(self, opener, opener2):
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138 changelog.changelog.__init__(self, opener)
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diff changeset
139 linkmapper = None
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parents:
diff changeset
140 changelog2 = changelog.changelog(opener2)
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parents:
diff changeset
141 unionrevlog.__init__(self, opener, self.indexfile, changelog2,
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parents:
diff changeset
142 linkmapper)
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143
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144 def baserevision(self, nodeorrev):
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parents: 18944
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145 # Although changelog doesn't override 'revision' method, some extensions
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146 # may replace this class with another that does. Same story with
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parents: 18944
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147 # manifest and filelog classes.
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148 return changelog.changelog.revision(self, nodeorrev)
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parents: 18944
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149
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150 def baserevdiff(self, rev1, rev2):
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151 return changelog.changelog.revdiff(self, rev1, rev2)
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152
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parents: 30218
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153 class unionmanifest(unionrevlog, manifest.manifestrevlog):
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154 def __init__(self, opener, opener2, linkmapper):
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diff changeset
155 manifest.manifestrevlog.__init__(self, opener)
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parents: 30218
diff changeset
156 manifest2 = manifest.manifestrevlog(opener2)
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diff changeset
157 unionrevlog.__init__(self, opener, self.indexfile, manifest2,
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diff changeset
158 linkmapper)
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159
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160 def baserevision(self, nodeorrev):
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diff changeset
161 return manifest.manifestrevlog.revision(self, nodeorrev)
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parents: 18944
diff changeset
162
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parents: 18944
diff changeset
163 def baserevdiff(self, rev1, rev2):
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parents: 30218
diff changeset
164 return manifest.manifestrevlog.revdiff(self, rev1, rev2)
19630
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parents: 18944
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165
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166 class unionfilelog(unionrevlog, filelog.filelog):
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167 def __init__(self, opener, path, opener2, linkmapper, repo):
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diff changeset
168 filelog.filelog.__init__(self, opener, path)
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diff changeset
169 filelog2 = filelog.filelog(opener2, path)
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diff changeset
170 unionrevlog.__init__(self, opener, self.indexfile, filelog2,
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parents:
diff changeset
171 linkmapper)
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diff changeset
172 self._repo = repo
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diff changeset
173
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diff changeset
174 def baserevision(self, nodeorrev):
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parents: 18944
diff changeset
175 return filelog.filelog.revision(self, nodeorrev)
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parents: 18944
diff changeset
176
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parents: 18944
diff changeset
177 def baserevdiff(self, rev1, rev2):
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parents: 18944
diff changeset
178 return filelog.filelog.revdiff(self, rev1, rev2)
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parents: 18944
diff changeset
179
24118
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24003
diff changeset
180 def iscensored(self, rev):
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parents: 24003
diff changeset
181 """Check if a revision is censored."""
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parents: 24003
diff changeset
182 if rev <= self.repotiprev:
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parents: 24003
diff changeset
183 return filelog.filelog.iscensored(self, rev)
27723
bf86e3e87123 unionrepo: fix wrong rev being checked in iscensored (issue5024)
Sean Farley <sean@farley.io>
parents: 26587
diff changeset
184 node = self.node(rev)
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Sean Farley <sean@farley.io>
parents: 26587
diff changeset
185 return self.revlog2.iscensored(self.revlog2.rev(node))
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parents: 24003
diff changeset
186
18944
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diff changeset
187 class unionpeer(localrepo.localpeer):
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188 def canpush(self):
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189 return False
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190
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diff changeset
191 class unionrepository(localrepo.localrepository):
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192 def __init__(self, ui, path, path2):
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193 localrepo.localrepository.__init__(self, ui, path)
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49f2d5644f04 config: set a 'source' in most cases where config don't come from file but code
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parents: 19630
diff changeset
194 self.ui.setconfig('phases', 'publish', False, 'unionrepo')
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195
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diff changeset
196 self._url = 'union:%s+%s' % (util.expandpath(path),
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diff changeset
197 util.expandpath(path2))
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diff changeset
198 self.repo2 = localrepo.localrepository(ui, path2)
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199
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diff changeset
200 @localrepo.unfilteredpropertycache
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diff changeset
201 def changelog(self):
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parents: 20790
diff changeset
202 return unionchangelog(self.svfs, self.repo2.svfs)
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203
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diff changeset
204 def _clrev(self, rev2):
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parents:
diff changeset
205 """map from repo2 changelog rev to temporary rev in self.changelog"""
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parents:
diff changeset
206 node = self.repo2.changelog.node(rev2)
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parents:
diff changeset
207 return self.changelog.rev(node)
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diff changeset
208
30218
1767723f71cf manifest: move manifest creation to a helper function
Durham Goode <durham@fb.com>
parents: 28222
diff changeset
209 def _constructmanifest(self):
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37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 20790
diff changeset
210 return unionmanifest(self.svfs, self.repo2.svfs,
28222
b966e35aad78 unionrepo: properly handle hidden linkrev in revlog (issue5070)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 27750
diff changeset
211 self.unfiltered()._clrev)
18944
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diff changeset
212
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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diff changeset
213 def url(self):
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parents:
diff changeset
214 return self._url
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parents:
diff changeset
215
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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parents:
diff changeset
216 def file(self, f):
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37a92908a382 localrepo: remove all external users of localrepo.sopener
Angel Ezquerra <angel.ezquerra@gmail.com>
parents: 20790
diff changeset
217 return unionfilelog(self.svfs, f, self.repo2.svfs,
28222
b966e35aad78 unionrepo: properly handle hidden linkrev in revlog (issue5070)
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 27750
diff changeset
218 self.unfiltered()._clrev, self)
18944
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diff changeset
219
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diff changeset
220 def close(self):
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parents:
diff changeset
221 self.repo2.close()
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diff changeset
222
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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diff changeset
223 def cancopy(self):
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diff changeset
224 return False
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diff changeset
225
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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diff changeset
226 def peer(self):
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diff changeset
227 return unionpeer(self)
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diff changeset
228
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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diff changeset
229 def getcwd(self):
30519
20a42325fdef py3: use pycompat.getcwd() instead of os.getcwd()
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parents: 30374
diff changeset
230 return pycompat.getcwd() # always outside the repo
18944
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parents:
diff changeset
231
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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parents:
diff changeset
232 def instance(ui, path, create):
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parents:
diff changeset
233 if create:
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26230
diff changeset
234 raise error.Abort(_('cannot create new union repository'))
33182
634997248c97 configitems: register the 'bundle.mainreporoot' config
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 31724
diff changeset
235 parentpath = ui.config("bundle", "mainreporoot")
18944
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parents:
diff changeset
236 if not parentpath:
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parents:
diff changeset
237 # try to find the correct path to the working directory repo
30519
20a42325fdef py3: use pycompat.getcwd() instead of os.getcwd()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30374
diff changeset
238 parentpath = cmdutil.findrepo(pycompat.getcwd())
18944
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parents:
diff changeset
239 if parentpath is None:
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parents:
diff changeset
240 parentpath = ''
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parents:
diff changeset
241 if parentpath:
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parents:
diff changeset
242 # Try to make the full path relative so we get a nice, short URL.
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parents:
diff changeset
243 # In particular, we don't want temp dir names in test outputs.
30519
20a42325fdef py3: use pycompat.getcwd() instead of os.getcwd()
Pulkit Goyal <7895pulkit@gmail.com>
parents: 30374
diff changeset
244 cwd = pycompat.getcwd()
18944
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parents:
diff changeset
245 if parentpath == cwd:
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parents:
diff changeset
246 parentpath = ''
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parents:
diff changeset
247 else:
24835
e4f75c93f073 unionrepo: use pathutil.normasprefix to ensure os.sep at the end of cwd
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 24118
diff changeset
248 cwd = pathutil.normasprefix(cwd)
18944
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parents:
diff changeset
249 if parentpath.startswith(cwd):
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parents:
diff changeset
250 parentpath = parentpath[len(cwd):]
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parents:
diff changeset
251 if path.startswith('union:'):
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parents:
diff changeset
252 s = path.split(":", 1)[1].split("+", 1)
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parents:
diff changeset
253 if len(s) == 1:
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parents:
diff changeset
254 repopath, repopath2 = parentpath, s[0]
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
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parents:
diff changeset
255 else:
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
Mads Kiilerich <madski@unity3d.com>
parents:
diff changeset
256 repopath, repopath2 = s
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
Mads Kiilerich <madski@unity3d.com>
parents:
diff changeset
257 else:
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
Mads Kiilerich <madski@unity3d.com>
parents:
diff changeset
258 repopath, repopath2 = parentpath, path
a9c443b3b240 unionrepo: read-only operations on a union of two localrepos
Mads Kiilerich <madski@unity3d.com>
parents:
diff changeset
259 return unionrepository(ui, repopath, repopath2)