Mercurial > public > mercurial-scm > evolve

annotate hgext3rd/topic/topicmap.py @ 4459:d46360b8c0dc stable

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topic: make topics compatible with branchmap refactor See https://phab.mercurial-scm.org/D5290
author Martijn Pieters <mj@octobus.net>
date Wed, 21 Nov 2018 12:00:46 +0000
parents 9b0cde5efbc9
children 05f8908df4ce
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1949
79c08d17a3d7 topicmap: move the 'usetopicmap' context manager into the topicmap module
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1937
diff changeset
1 import contextlib
1968
08cbfeb15a1a compat: mercurial dropped alias for hashlib.sha1
timeless@gmail.com
parents: 1953
diff changeset
2 import hashlib
1949
79c08d17a3d7 topicmap: move the 'usetopicmap' context manager into the topicmap module
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1937
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3
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4 from mercurial.i18n import _
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5 from mercurial.node import nullid
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1928
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6 from mercurial import (
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7 branchmap,
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1949
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8 changegroup,
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1950
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9 cmdutil,
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parents: 1949
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10 extensions,
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parents: 2004
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11 repoview,
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parents: 4187
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12 util,
1937
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parents: 1928
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13 )
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14
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15 basefilter = set(['base', 'immutable'])
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parents: 2004
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16 def topicfilter(name):
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parents: 2004
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17 """return a "topic" version of a filter level"""
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18 if name in basefilter:
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19 return name
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20 elif name is None:
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21 return None
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22 elif name.endswith('-topic'):
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23 return name
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24 else:
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25 return name + '-topic'
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26
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27 def istopicfilter(filtername):
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28 if filtername is None:
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29 return False
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30 return filtername.endswith('-topic')
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31
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32 def gettopicrepo(repo):
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33 filtername = topicfilter(repo.filtername)
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34 if filtername == repo.filtername:
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35 return repo
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36 return repo.filtered(filtername)
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37
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38 def _setuptopicfilter(ui):
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39 """extend the filter related mapping with topic related one"""
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parents: 2004
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40 funcmap = repoview.filtertable
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parents: 2004
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41 partialmap = branchmap.subsettable
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42
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43 # filter level not affected by topic that we should not override
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44
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45 for plainname in list(funcmap):
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46 newfilter = topicfilter(plainname)
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47 if newfilter == plainname:
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48 continue
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49
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50 def revsfunc(repo, name=plainname):
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51 return repoview.filterrevs(repo, name)
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52
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53 base = topicfilter(partialmap[plainname])
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54
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55 if newfilter not in funcmap:
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56 funcmap[newfilter] = revsfunc
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57 partialmap[newfilter] = base
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58 funcmap['unfiltered-topic'] = lambda repo: frozenset()
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59 partialmap['unfiltered-topic'] = 'visible-topic'
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60
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61 def _phaseshash(repo, maxrev):
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62 """uniq ID for a phase matching a set of rev"""
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63 revs = set()
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64 cl = repo.changelog
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65 fr = cl.filteredrevs
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66 nm = cl.nodemap
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67 for roots in repo._phasecache.phaseroots[1:]:
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68 for n in roots:
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parents: 1885
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69 r = nm.get(n)
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70 if r not in fr and r < maxrev:
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71 revs.add(r)
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72 key = nullid
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73 revs = sorted(revs)
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74 if revs:
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parents: 1953
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75 s = hashlib.sha1()
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76 for rev in revs:
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77 s.update('%s;' % rev)
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78 key = s.digest()
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79 return key
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80
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81 def modsetup(ui):
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82 """call at uisetup time to install various wrappings"""
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83 _setuptopicfilter(ui)
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84 _wrapbmcache(ui)
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85 extensions.wrapfunction(changegroup.cg1unpacker, 'apply', cgapply)
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86 extensions.wrapfunction(cmdutil, 'commitstatus', commitstatus)
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parents: 1937
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87
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88 def cgapply(orig, self, repo, *args, **kwargs):
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89 """make sure a topicmap is used when applying a changegroup"""
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90 other = repo.filtered(topicfilter(repo.filtername))
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91 return orig(self, other, *args, **kwargs)
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92
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93 def commitstatus(orig, repo, node, branch, bheads=None, opts=None):
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94 # wrap commit status use the topic branch heads
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95 ctx = repo[node]
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96 if ctx.topic() and ctx.branch() == branch:
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97 subbranch = "%s:%s" % (branch, ctx.topic())
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98 bheads = repo.branchheads("%s:%s" % (subbranch, ctx.topic()))
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99
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100 ret = orig(repo, node, branch, bheads=bheads, opts=opts)
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101
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102 # logic copy-pasted from cmdutil.commitstatus()
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103 if opts is None:
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104 opts = {}
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105 ctx = repo[node]
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106 if ctx.topic():
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107 return ret
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108 parents = ctx.parents()
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109
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110 if (not opts.get('amend') and bheads and node not in bheads and not
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111 [x for x in parents if x.node() in bheads and x.branch() == branch]):
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112 repo.ui.status(_("(consider using topic for lightweight branches."
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113 " See 'hg help topic')\n"))
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114
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115 return ret
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116
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117 def _wrapbmcache(ui):
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118 class topiccache(_topiccache, branchmap.branchcache):
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119 pass
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120 branchmap.branchcache = topiccache
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121
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122 try:
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123 # Mercurial 4.9
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124 class remotetopiccache(_topiccache, branchmap.remotebranchcache):
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125 pass
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126 branchmap.remotebranchcache = remotetopiccache
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127
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128 def _wrapupdatebmcachemethod(orig, self, repo):
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129 # pass in the bound method as the original
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130 return _wrapupdatebmcache(orig.__get__(self), repo)
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131 extensions.wrapfunction(branchmap.BranchMapCache, 'updatecache', _wrapupdatebmcachemethod)
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132 except AttributeError:
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133 # Mercurial 4.8 and before
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134 extensions.wrapfunction(branchmap, 'updatecache', _wrapupdatebmcache)
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135
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136
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137 def _wrapupdatebmcache(orig, repo):
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138 previous = getattr(repo, '_autobranchmaptopic', False)
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139 try:
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140 repo._autobranchmaptopic = False
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141 return orig(repo)
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142 finally:
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143 repo._autobranchmaptopic = previous
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144
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145 # needed to prevent reference used for 'super()' call using in branchmap.py to
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parents: 2004
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146 # no go into cycle. (yes, URG)
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parents: 2004
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147 _oldbranchmap = branchmap.branchcache
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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148
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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149 @contextlib.contextmanager
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150 def oldbranchmap():
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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151 previous = branchmap.branchcache
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parents: 2004
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152 try:
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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153 branchmap.branchcache = _oldbranchmap
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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154 yield
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parents: 2004
diff changeset
155 finally:
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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156 branchmap.branchcache = previous
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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157
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parents: 2004
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158 class _topiccache(object): # combine me with branchmap.branchcache
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parents:
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159
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160 def __init__(self, *args, **kwargs):
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161 # super() call may fail otherwise
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parents: 2004
diff changeset
162 with oldbranchmap():
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163 super(_topiccache, self).__init__(*args, **kwargs)
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164 self.phaseshash = None
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165
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166 def copy(self):
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167 """return an deep copy of the branchcache object"""
4450
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Anton Shestakov <av6@dwimlabs.net>
parents: 4187
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168 if util.safehasattr(self, '_entries'):
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169 _entries = self._entries
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170 else:
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171 # hg <= 4.9 (624d6683c705, b137a6793c51)
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172 _entries = self
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Anton Shestakov <av6@dwimlabs.net>
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diff changeset
173 new = self.__class__(_entries, self.tipnode, self.tiprev,
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Anton Shestakov <av6@dwimlabs.net>
parents: 4187
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174 self.filteredhash, self._closednodes)
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parents: 1885
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175 new.phaseshash = self.phaseshash
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parents: 1885
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176 return new
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parents: 1885
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177
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178 def branchtip(self, branch, topic=''):
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parents:
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179 '''Return the tipmost open head on branch head, otherwise return the
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parents:
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180 tipmost closed head on branch.
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parents:
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181 Raise KeyError for unknown branch.'''
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182 if topic:
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183 branch = '%s:%s' % (branch, topic)
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diff changeset
184 return super(_topiccache, self).branchtip(branch)
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185
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186 def branchheads(self, branch, closed=False, topic=''):
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parents:
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187 if topic:
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188 branch = '%s:%s' % (branch, topic)
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189 return super(_topiccache, self).branchheads(branch, closed=closed)
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parents:
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190
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diff changeset
191 def validfor(self, repo):
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parents: 1885
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192 """Is the cache content valid regarding a repo
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Pierre-Yves David <pierre-yves.david@fb.com>
parents: 1885
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193
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parents: 1885
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194 - False when cached tipnode is unknown or if we detect a strip.
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parents: 1885
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195 - True when cache is up to date or a subset of current repo."""
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parents: 2004
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196 valid = super(_topiccache, self).validfor(repo)
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diff changeset
197 if not valid:
1890
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198 return False
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199 elif not istopicfilter(repo.filtername) or self.phaseshash is None:
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200 # phasehash at None means this is a branchmap
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diff changeset
201 # come from non topic thing
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diff changeset
202 return True
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parents: 2004
diff changeset
203 else:
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parents: 2004
diff changeset
204 try:
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parents: 2004
diff changeset
205 valid = self.phaseshash == _phaseshash(repo, self.tiprev)
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parents: 2004
diff changeset
206 return valid
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parents: 2004
diff changeset
207 except IndexError:
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parents: 2004
diff changeset
208 return False
1890
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diff changeset
209
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210 def write(self, repo):
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diff changeset
211 # we expect mutable set to be small enough to be that computing it all
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
diff changeset
212 # the time will be fast enough
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parents: 2004
diff changeset
213 if not istopicfilter(repo.filtername):
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parents: 2004
diff changeset
214 super(_topiccache, self).write(repo)
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parents:
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215
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parents:
diff changeset
216 def update(self, repo, revgen):
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parents:
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217 """Given a branchhead cache, self, that may have extra nodes or be
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
diff changeset
218 missing heads, and a generator of nodes that are strictly a superset of
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parents:
diff changeset
219 heads missing, this function updates self to be correct.
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220 """
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diff changeset
221 if not istopicfilter(repo.filtername):
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parents: 2004
diff changeset
222 return super(_topiccache, self).update(repo, revgen)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 2004
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223 unfi = repo.unfiltered()
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parents: 2004
diff changeset
224 oldgetbranchinfo = unfi.revbranchcache().branchinfo
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parents: 2004
diff changeset
225
4187
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Pulkit Goyal <pulkit@yandex-team.ru>
parents: 3397
diff changeset
226 def branchinfo(r, changelog=None):
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diff changeset
227 info = oldgetbranchinfo(r)
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parents: 2004
diff changeset
228 topic = ''
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parents: 2004
diff changeset
229 ctx = unfi[r]
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parents: 2004
diff changeset
230 if ctx.mutable():
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parents: 2004
diff changeset
231 topic = ctx.topic()
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parents: 2004
diff changeset
232 branch = info[0]
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parents: 2004
diff changeset
233 if topic:
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parents: 2004
diff changeset
234 branch = '%s:%s' % (branch, topic)
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parents: 2004
diff changeset
235 return (branch, info[1])
1885
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parents:
diff changeset
236 try:
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parents: 2004
diff changeset
237 unfi.revbranchcache().branchinfo = branchinfo
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parents: 2004
diff changeset
238 super(_topiccache, self).update(repo, revgen)
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diff changeset
239 self.phaseshash = _phaseshash(repo, self.tiprev)
1885
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diff changeset
240 finally:
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parents: 2004
diff changeset
241 unfi.revbranchcache().branchinfo = oldgetbranchinfo