Mercurial > public > mercurial-scm > hg

annotate mercurial/branchmap.py @ 51284:f15cb5111a1e

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pytype: move some type comment to proper annotation We support direct type annotations now, while pytype is starting to complains about them.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 19 Dec 2023 21:29:34 +0100
parents 9d3721552b6c
children f4a0806081f2
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # branchmap.py - logic to computes, maintain and stores branchmap for local repo
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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 import struct
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10
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11 from .node import (
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12 bin,
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13 hex,
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14 nullrev,
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15 )
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16
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17 from typing import (
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18 Any,
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19 Callable,
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20 Dict,
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21 Iterable,
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22 List,
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23 Optional,
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24 Set,
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25 TYPE_CHECKING,
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26 Tuple,
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27 Union,
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28 )
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29
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30 from . import (
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31 encoding,
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32 error,
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33 obsolete,
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34 scmutil,
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35 util,
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36 )
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37
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38 from .utils import (
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39 repoviewutil,
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40 stringutil,
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41 )
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42
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43 # keeps pyflakes happy
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44 assert [
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45 Any,
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46 Callable,
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47 Dict,
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48 Iterable,
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49 List,
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50 Optional,
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51 Set,
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52 Tuple,
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53 Union,
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54 ]
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55
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56 if TYPE_CHECKING:
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57 from . import localrepo
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58
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59 assert [localrepo]
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60
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61 subsettable = repoviewutil.subsettable
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62
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63 calcsize = struct.calcsize
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64 pack_into = struct.pack_into
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65 unpack_from = struct.unpack_from
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66
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67
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68 class BranchMapCache:
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69 """mapping of filtered views of repo with their branchcache"""
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70
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71 def __init__(self):
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72 self._per_filter = {}
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73
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74 def __getitem__(self, repo):
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75 self.updatecache(repo)
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76 return self._per_filter[repo.filtername]
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77
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78 def updatecache(self, repo):
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79 """Update the cache for the given filtered view on a repository"""
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80 # This can trigger updates for the caches for subsets of the filtered
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81 # view, e.g. when there is no cache for this filtered view or the cache
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82 # is stale.
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83
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84 cl = repo.changelog
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85 filtername = repo.filtername
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86 bcache = self._per_filter.get(filtername)
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87 if bcache is None or not bcache.validfor(repo):
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88 # cache object missing or cache object stale? Read from disk
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89 bcache = branchcache.fromfile(repo)
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90
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91 revs = []
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92 if bcache is None:
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93 # no (fresh) cache available anymore, perhaps we can re-use
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94 # the cache for a subset, then extend that to add info on missing
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95 # revisions.
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96 subsetname = subsettable.get(filtername)
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97 if subsetname is not None:
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98 subset = repo.filtered(subsetname)
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99 bcache = self[subset].copy()
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100 extrarevs = subset.changelog.filteredrevs - cl.filteredrevs
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101 revs.extend(r for r in extrarevs if r <= bcache.tiprev)
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102 else:
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103 # nothing to fall back on, start empty.
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104 bcache = branchcache(repo)
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105
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106 revs.extend(cl.revs(start=bcache.tiprev + 1))
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107 if revs:
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108 bcache.update(repo, revs)
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109
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110 assert bcache.validfor(repo), filtername
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111 self._per_filter[repo.filtername] = bcache
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112
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113 def replace(self, repo, remotebranchmap):
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114 """Replace the branchmap cache for a repo with a branch mapping.
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115
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116 This is likely only called during clone with a branch map from a
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117 remote.
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118
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119 """
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120 cl = repo.changelog
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121 clrev = cl.rev
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122 clbranchinfo = cl.branchinfo
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123 rbheads = []
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124 closed = set()
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125 for bheads in remotebranchmap.values():
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126 rbheads += bheads
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127 for h in bheads:
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128 r = clrev(h)
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129 b, c = clbranchinfo(r)
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130 if c:
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131 closed.add(h)
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132
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133 if rbheads:
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134 rtiprev = max((int(clrev(node)) for node in rbheads))
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135 cache = branchcache(
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136 repo,
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137 remotebranchmap,
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138 repo[rtiprev].node(),
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diff changeset
139 rtiprev,
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140 closednodes=closed,
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parents: 42603
diff changeset
141 )
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diff changeset
142
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143 # Try to stick it as low as possible
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144 # filter above served are unlikely to be fetch from a clone
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145 for candidate in (b'base', b'immutable', b'served'):
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146 rview = repo.filtered(candidate)
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147 if cache.validfor(rview):
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148 self._per_filter[candidate] = cache
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149 cache.write(rview)
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diff changeset
150 return
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151
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diff changeset
152 def clear(self):
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153 self._per_filter.clear()
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154
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155 def write_delayed(self, repo):
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156 unfi = repo.unfiltered()
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diff changeset
157 for filtername, cache in self._per_filter.items():
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diff changeset
158 if cache._delayed:
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159 repo = unfi.filtered(filtername)
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diff changeset
160 cache.write(repo)
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161
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162
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163 def _unknownnode(node):
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164 """raises ValueError when branchcache found a node which does not exists"""
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165 raise ValueError('node %s does not exist' % node.hex())
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166
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167
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168 def _branchcachedesc(repo):
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169 if repo.filtername is not None:
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170 return b'branch cache (%s)' % repo.filtername
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171 else:
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172 return b'branch cache'
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173
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174
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175 class branchcache:
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176 """A dict like object that hold branches heads cache.
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177
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178 This cache is used to avoid costly computations to determine all the
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diff changeset
179 branch heads of a repo.
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180
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diff changeset
181 The cache is serialized on disk in the following format:
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182
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diff changeset
183 <tip hex node> <tip rev number> [optional filtered repo hex hash]
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parents: 20181
diff changeset
184 <branch head hex node> <open/closed state> <branch name>
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parents: 20181
diff changeset
185 <branch head hex node> <open/closed state> <branch name>
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parents: 20032
diff changeset
186 ...
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diff changeset
187
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diff changeset
188 The first line is used to check if the cache is still valid. If the
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diff changeset
189 branch cache is for a filtered repo view, an optional third hash is
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diff changeset
190 included that hashes the hashes of all filtered and obsolete revisions.
20185
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diff changeset
191
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parents: 20181
diff changeset
192 The open/closed state is represented by a single letter 'o' or 'c'.
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diff changeset
193 This field can be used to avoid changelog reads when determining if a
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parents: 20181
diff changeset
194 branch head closes a branch or not.
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parents: 20032
diff changeset
195 """
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196
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diff changeset
197 def __init__(
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diff changeset
198 self,
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parents: 51282
diff changeset
199 repo: "localrepo.localrepository",
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diff changeset
200 entries: Union[
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parents: 51282
diff changeset
201 Dict[bytes, List[bytes]], Iterable[Tuple[bytes, List[bytes]]]
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parents: 51282
diff changeset
202 ] = (),
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parents: 51282
diff changeset
203 tipnode: Optional[bytes] = None,
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parents: 51282
diff changeset
204 tiprev: Optional[int] = nullrev,
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parents: 51282
diff changeset
205 filteredhash: Optional[bytes] = None,
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parents: 51282
diff changeset
206 closednodes: Optional[Set[bytes]] = None,
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parents: 51282
diff changeset
207 hasnode: Optional[Callable[[bytes], bool]] = None,
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parents: 51282
diff changeset
208 ) -> None:
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diff changeset
209 """hasnode is a function which can be used to verify whether changelog
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parents: 42006
diff changeset
210 has a given node or not. If it's not provided, we assume that every node
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parents: 44452
diff changeset
211 we have exists in changelog"""
46780
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Joerg Sonnenberger <joerg@bec.de>
parents: 46372
diff changeset
212 self._repo = repo
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diff changeset
213 self._delayed = False
47012
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Joerg Sonnenberger <joerg@bec.de>
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diff changeset
214 if tipnode is None:
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Joerg Sonnenberger <joerg@bec.de>
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diff changeset
215 self.tipnode = repo.nullid
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Joerg Sonnenberger <joerg@bec.de>
parents: 46819
diff changeset
216 else:
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parents: 46819
diff changeset
217 self.tipnode = tipnode
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diff changeset
218 self.tiprev = tiprev
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diff changeset
219 self.filteredhash = filteredhash
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diff changeset
220 # closednodes is a set of nodes that close their branch. If the branch
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diff changeset
221 # cache has been updated, it may contain nodes that are no longer
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diff changeset
222 # heads.
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diff changeset
223 if closednodes is None:
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parents: 41615
diff changeset
224 self._closednodes = set()
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diff changeset
225 else:
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9c1eccdd7ed8 branchmap: annotate constructor type for branchcache
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parents: 43634
diff changeset
226 self._closednodes = closednodes
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parents: 42004
diff changeset
227 self._entries = dict(entries)
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diff changeset
228 # whether closed nodes are verified or not
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diff changeset
229 self._closedverified = False
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diff changeset
230 # branches for which nodes are verified
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diff changeset
231 self._verifiedbranches = set()
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diff changeset
232 self._hasnode = hasnode
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diff changeset
233 if self._hasnode is None:
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diff changeset
234 self._hasnode = lambda x: True
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diff changeset
235
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diff changeset
236 def _verifyclosed(self):
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diff changeset
237 """verify the closed nodes we have"""
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diff changeset
238 if self._closedverified:
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diff changeset
239 return
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parents: 42113
diff changeset
240 for node in self._closednodes:
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Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42113
diff changeset
241 if not self._hasnode(node):
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Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42113
diff changeset
242 _unknownnode(node)
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diff changeset
243
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diff changeset
244 self._closedverified = True
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diff changeset
245
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diff changeset
246 def _verifybranch(self, branch):
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diff changeset
247 """verify head nodes for the given branch."""
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diff changeset
248 if branch not in self._entries or branch in self._verifiedbranches:
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diff changeset
249 return
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parents: 42113
diff changeset
250 for n in self._entries[branch]:
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parents: 42113
diff changeset
251 if not self._hasnode(n):
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Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42113
diff changeset
252 _unknownnode(n)
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diff changeset
253
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diff changeset
254 self._verifiedbranches.add(branch)
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diff changeset
255
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parents: 42113
diff changeset
256 def _verifyall(self):
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diff changeset
257 """verifies nodes of all the branches"""
42133
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parents: 42132
diff changeset
258 needverification = set(self._entries.keys()) - self._verifiedbranches
75e8e16ca107 branchcache: only iterate over branches which needs to be verified
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parents: 42132
diff changeset
259 for b in needverification:
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diff changeset
260 self._verifybranch(b)
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diff changeset
261
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diff changeset
262 def __iter__(self):
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diff changeset
263 return iter(self._entries)
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parents: 41839
diff changeset
264
624d6683c705 branchmap: remove the dict interface from the branchcache class (API)
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diff changeset
265 def __setitem__(self, key, value):
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diff changeset
266 self._entries[key] = value
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diff changeset
267
624d6683c705 branchmap: remove the dict interface from the branchcache class (API)
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41839
diff changeset
268 def __getitem__(self, key):
42121
6578654916ae branchcache: lazily validate nodes from the branchmap
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42120
diff changeset
269 self._verifybranch(key)
42005
b137a6793c51 branchcache: make entries a private attribute
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42004
diff changeset
270 return self._entries[key]
42001
624d6683c705 branchmap: remove the dict interface from the branchcache class (API)
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41839
diff changeset
271
42113
f0def07fa82f branchmap: implement __contains__()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42112
diff changeset
272 def __contains__(self, key):
42121
6578654916ae branchcache: lazily validate nodes from the branchmap
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42120
diff changeset
273 self._verifybranch(key)
42113
f0def07fa82f branchmap: implement __contains__()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42112
diff changeset
274 return key in self._entries
f0def07fa82f branchmap: implement __contains__()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42112
diff changeset
275
42001
624d6683c705 branchmap: remove the dict interface from the branchcache class (API)
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41839
diff changeset
276 def iteritems(self):
48913
f254fc73d956 global: bulk replace simple pycompat.iteritems(x) with x.items()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
277 for k, v in self._entries.items():
42134
f0203c3406e7 branchcache: lazily validate nodes in iteritems()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42133
diff changeset
278 self._verifybranch(k)
f0203c3406e7 branchcache: lazily validate nodes in iteritems()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42133
diff changeset
279 yield k, v
42001
624d6683c705 branchmap: remove the dict interface from the branchcache class (API)
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41839
diff changeset
280
42603
3018749a71bb py3: source-transform only call-sites of iteritems(), not definitions
Martin von Zweigbergk <martinvonz@google.com>
parents: 42602
diff changeset
281 items = iteritems
3018749a71bb py3: source-transform only call-sites of iteritems(), not definitions
Martin von Zweigbergk <martinvonz@google.com>
parents: 42602
diff changeset
282
42004
0bd730fbcc2b branchcache: introduce hasbranch()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42003
diff changeset
283 def hasbranch(self, label):
47062
f38bf44e077f black: make codebase compatible with black v21.4b2 and v20.8b1
Kyle Lippincott <spectral@google.com>
parents: 46819
diff changeset
284 """checks whether a branch of this name exists or not"""
42121
6578654916ae branchcache: lazily validate nodes from the branchmap
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42120
diff changeset
285 self._verifybranch(label)
42005
b137a6793c51 branchcache: make entries a private attribute
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42004
diff changeset
286 return label in self._entries
42004
0bd730fbcc2b branchcache: introduce hasbranch()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42003
diff changeset
287
41565
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Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
288 @classmethod
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
289 def fromfile(cls, repo):
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
290 f = None
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
291 try:
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
292 f = repo.cachevfs(cls._filename(repo))
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
293 lineiter = iter(f)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
294 cachekey = next(lineiter).rstrip(b'\n').split(b" ", 2)
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
295 last, lrev = cachekey[:2]
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
296 last, lrev = bin(last), int(lrev)
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
297 filteredhash = None
42007
b5511845f9d5 branchcache: have a hasnode function to validate nodes
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42006
diff changeset
298 hasnode = repo.changelog.hasnode
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
299 if len(cachekey) > 2:
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
300 filteredhash = bin(cachekey[2])
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
301 bcache = cls(
46780
6266d19556ad node: introduce nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents: 46372
diff changeset
302 repo,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
303 tipnode=last,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
304 tiprev=lrev,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
305 filteredhash=filteredhash,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
306 hasnode=hasnode,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
307 )
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
308 if not bcache.validfor(repo):
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
309 # invalidate the cache
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43499
diff changeset
310 raise ValueError('tip differs')
41808
8ad46ac6728e branchmap: prevent reading the file twice through different iterators
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41797
diff changeset
311 bcache.load(repo, lineiter)
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
312 except (IOError, OSError):
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
313 return None
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
314
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
315 except Exception as inst:
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
316 if repo.ui.debugflag:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
317 msg = b'invalid %s: %s\n'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
318 repo.ui.debug(
43499
1a47fe4bc154 branchmap: pytype is confused about bytestr
Augie Fackler <augie@google.com>
parents: 43106
diff changeset
319 msg
1a47fe4bc154 branchmap: pytype is confused about bytestr
Augie Fackler <augie@google.com>
parents: 43106
diff changeset
320 % (
1a47fe4bc154 branchmap: pytype is confused about bytestr
Augie Fackler <augie@google.com>
parents: 43106
diff changeset
321 _branchcachedesc(repo),
46685
799973a44c82 branchmap: force Exception to bytes before logging
Matt Harbison <matt_harbison@yahoo.com>
parents: 46254
diff changeset
322 stringutil.forcebytestr(inst),
43499
1a47fe4bc154 branchmap: pytype is confused about bytestr
Augie Fackler <augie@google.com>
parents: 43106
diff changeset
323 )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
324 )
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
325 bcache = None
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
326
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
327 finally:
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
328 if f:
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
329 f.close()
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
330
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
331 return bcache
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
332
41808
8ad46ac6728e branchmap: prevent reading the file twice through different iterators
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41797
diff changeset
333 def load(self, repo, lineiter):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44452
diff changeset
334 """fully loads the branchcache by reading from the file using the line
41808
8ad46ac6728e branchmap: prevent reading the file twice through different iterators
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41797
diff changeset
335 iterator passed"""
41797
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
336 for line in lineiter:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
337 line = line.rstrip(b'\n')
41797
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
338 if not line:
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
339 continue
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
340 node, state, label = line.split(b" ", 2)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
341 if state not in b'oc':
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43499
diff changeset
342 raise ValueError('invalid branch state')
41797
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
343 label = encoding.tolocal(label.strip())
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
344 node = bin(node)
42005
b137a6793c51 branchcache: make entries a private attribute
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42004
diff changeset
345 self._entries.setdefault(label, []).append(node)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
346 if state == b'c':
41797
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
347 self._closednodes.add(node)
68bbcc70e274 branchcache: move loading of branch names and nodes into it's own function
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 41759
diff changeset
348
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
349 @staticmethod
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
350 def _filename(repo):
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
351 """name of a branchcache file for a given repo or repoview"""
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
352 filename = b"branch2"
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
353 if repo.filtername:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
354 filename = b'%s-%s' % (filename, repo.filtername)
41565
bf7fb97aecf1 branchmap: make branchcache responsible for reading
Martijn Pieters <mj@octobus.net>
parents: 41396
diff changeset
355 return filename
18124
79db6d40bced branchmap: store branchcache in a dedicated object
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18121
diff changeset
356
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
357 def validfor(self, repo):
48719
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
358 """check that cache contents are valid for (a subset of) this repo
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
359
48719
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
360 - False when the order of changesets changed or if we detect a strip.
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
361 - True when cache is up-to-date for the current repo or its subset."""
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
362 try:
48719
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
363 node = repo.changelog.node(self.tiprev)
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
364 except IndexError:
48719
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
365 # changesets were stripped and now we don't even have enough to
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
366 # find tiprev
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
367 return False
48719
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
368 if self.tipnode != node:
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
369 # tiprev doesn't correspond to tipnode: repo was stripped, or this
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
370 # repo has a different order of changesets
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
371 return False
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
372 tiphash = scmutil.filteredhash(repo, self.tiprev, needobsolete=True)
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
373 # hashes don't match if this repo view has a different set of filtered
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
374 # revisions (e.g. due to phase changes) or obsolete revisions (e.g.
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
375 # history was rewritten)
02e9ad08999b branchmap: split a long condition in branchcache.validfor(), add comments
Anton Shestakov <av6@dwimlabs.net>
parents: 48718
diff changeset
376 return self.filteredhash == tiphash
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
377
20186
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
378 def _branchtip(self, heads):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44452
diff changeset
379 """Return tuple with last open head in heads and false,
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44452
diff changeset
380 otherwise return last closed head and true."""
20186
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
381 tip = heads[-1]
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
382 closed = True
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
383 for h in reversed(heads):
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
384 if h not in self._closednodes:
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
385 tip = h
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
386 closed = False
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
387 break
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
388 return tip, closed
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
389
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
390 def branchtip(self, branch):
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44452
diff changeset
391 """Return the tipmost open head on branch head, otherwise return the
20245
4edd179fefb8 help: branch names primarily denote the tipmost unclosed branch head
Mads Kiilerich <madski@unity3d.com>
parents: 20190
diff changeset
392 tipmost closed head on branch.
45942
89a2afe31e82 formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents: 44452
diff changeset
393 Raise KeyError for unknown branch."""
20186
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
394 return self._branchtip(self[branch])[0]
f5b461a4bc55 branchmap: introduce branchtip() method
Brodie Rao <brodie@sf.io>
parents: 20185
diff changeset
395
34074
abf91c4f9608 branches: correctly show inactive multiheaded branches
the31k <the31k@thethirty.one>
parents: 33663
diff changeset
396 def iteropen(self, nodes):
abf91c4f9608 branches: correctly show inactive multiheaded branches
the31k <the31k@thethirty.one>
parents: 33663
diff changeset
397 return (n for n in nodes if n not in self._closednodes)
abf91c4f9608 branches: correctly show inactive multiheaded branches
the31k <the31k@thethirty.one>
parents: 33663
diff changeset
398
20188
3a3727829607 branchmap: introduce branchheads() method
Brodie Rao <brodie@sf.io>
parents: 20186
diff changeset
399 def branchheads(self, branch, closed=False):
42121
6578654916ae branchcache: lazily validate nodes from the branchmap
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42120
diff changeset
400 self._verifybranch(branch)
42112
29c22496dd97 branchmap: prevent using __getitem__() in branchheads()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42111
diff changeset
401 heads = self._entries[branch]
20188
3a3727829607 branchmap: introduce branchheads() method
Brodie Rao <brodie@sf.io>
parents: 20186
diff changeset
402 if not closed:
34074
abf91c4f9608 branches: correctly show inactive multiheaded branches
the31k <the31k@thethirty.one>
parents: 33663
diff changeset
403 heads = list(self.iteropen(heads))
20188
3a3727829607 branchmap: introduce branchheads() method
Brodie Rao <brodie@sf.io>
parents: 20186
diff changeset
404 return heads
3a3727829607 branchmap: introduce branchheads() method
Brodie Rao <brodie@sf.io>
parents: 20186
diff changeset
405
20190
d5d25e541637 branchmap: introduce iterbranches() method
Brodie Rao <brodie@sf.io>
parents: 20188
diff changeset
406 def iterbranches(self):
48913
f254fc73d956 global: bulk replace simple pycompat.iteritems(x) with x.items()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
407 for bn, heads in self.items():
20190
d5d25e541637 branchmap: introduce iterbranches() method
Brodie Rao <brodie@sf.io>
parents: 20188
diff changeset
408 yield (bn, heads) + self._branchtip(heads)
d5d25e541637 branchmap: introduce iterbranches() method
Brodie Rao <brodie@sf.io>
parents: 20188
diff changeset
409
42002
662ffdde5adf branchcache: rename itervalues() to iterheads()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42001
diff changeset
410 def iterheads(self):
47062
f38bf44e077f black: make codebase compatible with black v21.4b2 and v20.8b1
Kyle Lippincott <spectral@google.com>
parents: 46819
diff changeset
411 """returns all the heads"""
42121
6578654916ae branchcache: lazily validate nodes from the branchmap
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42120
diff changeset
412 self._verifyall()
48935
2cce2fa5bcf7 py3: replace pycompat.itervalues(x) with x.values()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48913
diff changeset
413 return self._entries.values()
42002
662ffdde5adf branchcache: rename itervalues() to iterheads()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42001
diff changeset
414
18232
dd0b636b0b65 branchmap: add a copy method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18218
diff changeset
415 def copy(self):
dd0b636b0b65 branchmap: add a copy method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18218
diff changeset
416 """return an deep copy of the branchcache object"""
42111
f0fa0fc4900a branchmap: dynamically resolve type of branchcache class
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42007
diff changeset
417 return type(self)(
46780
6266d19556ad node: introduce nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents: 46372
diff changeset
418 self._repo,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
419 self._entries,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
420 self.tipnode,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
421 self.tiprev,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
422 self.filteredhash,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
423 self._closednodes,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
424 )
18132
db25bf1dc828 branchmap: move validity logic in the object itself
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18131
diff changeset
425
18128
f0d56efaa35a branchmap: make write a method on the branchmap object
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18127
diff changeset
426 def write(self, repo):
48677
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
427 tr = repo.currenttransaction()
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
428 if not getattr(tr, 'finalized', True):
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
429 # Avoid premature writing.
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
430 #
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
431 # (The cache warming setup by localrepo will update the file later.)
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
432 self._delayed = True
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
433 return
18128
f0d56efaa35a branchmap: make write a method on the branchmap object
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18127
diff changeset
434 try:
49203
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
435 filename = self._filename(repo)
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
436 with repo.cachevfs(filename, b"w", atomictemp=True) as f:
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
437 cachekey = [hex(self.tipnode), b'%d' % self.tiprev]
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
438 if self.filteredhash is not None:
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
439 cachekey.append(hex(self.filteredhash))
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
440 f.write(b" ".join(cachekey) + b'\n')
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
441 nodecount = 0
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
442 for label, nodes in sorted(self._entries.items()):
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
443 label = encoding.fromlocal(label)
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
444 for node in nodes:
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
445 nodecount += 1
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
446 if node in self._closednodes:
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
447 state = b'c'
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
448 else:
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
449 state = b'o'
f923bdd7477d branchmap: use a context manager when writing the branchmap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 48946
diff changeset
450 f.write(b"%s %s %s\n" % (hex(node), state, label))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
451 repo.ui.log(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
452 b'branchcache',
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
453 b'wrote %s with %d labels and %d nodes\n',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
454 _branchcachedesc(repo),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
455 len(self._entries),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
456 nodecount,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
457 )
48677
8e5effbf52d0 branchmap: stop writing cache for uncommitted data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 47128
diff changeset
458 self._delayed = False
26587
56b2bcea2529 error: get Abort from 'error' instead of 'util'
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 26460
diff changeset
459 except (IOError, OSError, error.Abort) as inst:
34370
d0db41af73c0 branchmap: remove superfluous pass statements
Augie Fackler <augie@google.com>
parents: 34074
diff changeset
460 # Abort may be raised by read only opener, so log and continue
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
461 repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
462 b"couldn't write branch cache: %s\n"
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
463 % stringutil.forcebytestr(inst)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
464 )
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
465
18305
2502a15e033d branchmap: pass revision insteads of changectx to the update function
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18234
diff changeset
466 def update(self, repo, revgen):
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
467 """Given a branchhead cache, self, that may have extra nodes or be
20263
ea4996754d91 branchmap: simplify update code
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 20262
diff changeset
468 missing heads, and a generator of nodes that are strictly a superset of
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
469 heads missing, this function updates self to be correct.
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
470 """
30975
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 29746
diff changeset
471 starttime = util.timer()
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
472 cl = repo.changelog
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
473 # collect new branch entries
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
474 newbranches = {}
24373
59cc09240afb revbranchcache: move out of branchmap onto localrepo
Durham Goode <durham@fb.com>
parents: 24163
diff changeset
475 getbranchinfo = repo.revbranchcache().branchinfo
18307
0eed2546118a branchmap: Save changectx creation during update
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 18305
diff changeset
476 for r in revgen:
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
477 branch, closesbranch = getbranchinfo(r)
20262
cf450ee3f8f7 branchmap: stop useless rev -> node -> rev round trip
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 20261
diff changeset
478 newbranches.setdefault(branch, []).append(r)
20185
7d4219512823 branchmap: cache open/closed branch head information
Brodie Rao <brodie@sf.io>
parents: 20181
diff changeset
479 if closesbranch:
20262
cf450ee3f8f7 branchmap: stop useless rev -> node -> rev round trip
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 20261
diff changeset
480 self._closednodes.add(cl.node(r))
22357
9c3c3dc14a65 branchmap: pre-filter topological heads before ancestors based filtering
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22356
diff changeset
481
42214
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
482 # new tip revision which we found after iterating items from new
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
483 # branches
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
484 ntiprev = self.tiprev
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
485
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
486 # Delay fetching the topological heads until they are needed.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
487 # A repository without non-continous branches can skip this part.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
488 topoheads = None
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
489
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
490 # If a changeset is visible, its parents must be visible too, so
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
491 # use the faster unfiltered parent accessor.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
492 parentrevs = repo.unfiltered().changelog.parentrevs
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
493
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
494 # Faster than using ctx.obsolete()
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
495 obsrevs = obsolete.getrevs(repo, b'obsolete')
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
496
48913
f254fc73d956 global: bulk replace simple pycompat.iteritems(x) with x.items()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48875
diff changeset
497 for branch, newheadrevs in newbranches.items():
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
498 # For every branch, compute the new branchheads.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
499 # A branchhead is a revision such that no descendant is on
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
500 # the same branch.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
501 #
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
502 # The branchheads are computed iteratively in revision order.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
503 # This ensures topological order, i.e. parents are processed
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
504 # before their children. Ancestors are inclusive here, i.e.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
505 # any revision is an ancestor of itself.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
506 #
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
507 # Core observations:
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
508 # - The current revision is always a branchhead for the
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
509 # repository up to that point.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
510 # - It is the first revision of the branch if and only if
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
511 # there was no branchhead before. In that case, it is the
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
512 # only branchhead as there are no possible ancestors on
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
513 # the same branch.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
514 # - If a parent is on the same branch, a branchhead can
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
515 # only be an ancestor of that parent, if it is parent
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
516 # itself. Otherwise it would have been removed as ancestor
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
517 # of that parent before.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
518 # - Therefore, if all parents are on the same branch, they
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
519 # can just be removed from the branchhead set.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
520 # - If one parent is on the same branch and the other is not
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
521 # and there was exactly one branchhead known, the existing
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
522 # branchhead can only be an ancestor if it is the parent.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
523 # Otherwise it would have been removed as ancestor of
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
524 # the parent before. The other parent therefore can't have
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
525 # a branchhead as ancestor.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
526 # - In all other cases, the parents on different branches
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
527 # could have a branchhead as ancestor. Those parents are
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
528 # kept in the "uncertain" set. If all branchheads are also
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
529 # topological heads, they can't have descendants and further
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
530 # checks can be skipped. Otherwise, the ancestors of the
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
531 # "uncertain" set are removed from branchheads.
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
532 # This computation is heavy and avoided if at all possible.
48718
8b393f40a5e6 branchmap: don't add branch entries if there are no heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48687
diff changeset
533 bheads = self._entries.get(branch, [])
44452
9d2b2df2c2ba cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents: 44306
diff changeset
534 bheadset = {cl.rev(node) for node in bheads}
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
535 uncertain = set()
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
536 for newrev in sorted(newheadrevs):
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
537 if newrev in obsrevs:
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
538 # We ignore obsolete changesets as they shouldn't be
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
539 # considered heads.
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
540 continue
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
541
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
542 if not bheadset:
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
543 bheadset.add(newrev)
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
544 continue
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
545
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
546 parents = [p for p in parentrevs(newrev) if p != nullrev]
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
547 samebranch = set()
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
548 otherbranch = set()
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
549 obsparents = set()
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
550 for p in parents:
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
551 if p in obsrevs:
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
552 # We ignored this obsolete changeset earlier, but now
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
553 # that it has non-ignored children, we need to make
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
554 # sure their ancestors are not considered heads. To
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
555 # achieve that, we will simply treat this obsolete
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
556 # changeset as a parent from other branch.
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
557 obsparents.add(p)
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
558 elif p in bheadset or getbranchinfo(p)[0] == branch:
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
559 samebranch.add(p)
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
560 else:
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
561 otherbranch.add(p)
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
562 if not (len(bheadset) == len(samebranch) == 1):
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
563 uncertain.update(otherbranch)
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
564 uncertain.update(obsparents)
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
565 bheadset.difference_update(samebranch)
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
566 bheadset.add(newrev)
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
567
22357
9c3c3dc14a65 branchmap: pre-filter topological heads before ancestors based filtering
Pierre-Yves David <pierre-yves.david@fb.com>
parents: 22356
diff changeset
568 if uncertain:
46254
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
569 if topoheads is None:
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
570 topoheads = set(cl.headrevs())
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
571 if bheadset - topoheads:
c4b792fa109e branchmap: avoid ancestor computations in absence of non-continous branches
Joerg Sonnenberger <joerg@bec.de>
parents: 45942
diff changeset
572 floorrev = min(bheadset)
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
573 if floorrev <= max(uncertain):
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
574 ancestors = set(cl.ancestors(uncertain, floorrev))
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
575 bheadset -= ancestors
48718
8b393f40a5e6 branchmap: don't add branch entries if there are no heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48687
diff changeset
576 if bheadset:
8b393f40a5e6 branchmap: don't add branch entries if there are no heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48687
diff changeset
577 self[branch] = [cl.node(rev) for rev in sorted(bheadset)]
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
578 tiprev = max(newheadrevs)
42214
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
579 if tiprev > ntiprev:
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
580 ntiprev = tiprev
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
581
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
582 if ntiprev > self.tiprev:
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
583 self.tiprev = ntiprev
9893d7aa7420 branchcache: store the maximum tip in a variable inside for loop
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42190
diff changeset
584 self.tipnode = cl.node(ntiprev)
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
585
19838
23386881abeb branchmap: remove the droppednodes logic
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 19837
diff changeset
586 if not self.validfor(repo):
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
587 # old cache key is now invalid for the repo, but we've just updated
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
588 # the cache and we assume it's valid, so let's make the cache key
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
589 # valid as well by recomputing it from the cached data
47012
d55b71393907 node: replace nullid and friends with nodeconstants class
Joerg Sonnenberger <joerg@bec.de>
parents: 46819
diff changeset
590 self.tipnode = repo.nullid
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
591 self.tiprev = nullrev
42002
662ffdde5adf branchcache: rename itervalues() to iterheads()
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42001
diff changeset
592 for heads in self.iterheads():
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
593 if not heads:
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
594 # all revisions on a branch are obsolete
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
595 continue
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
596 # note: tiprev is not necessarily the tip revision of repo,
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
597 # because the tip could be obsolete (i.e. not a head)
18131
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
598 tiprev = max(cl.rev(node) for node in heads)
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
599 if tiprev > self.tiprev:
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
600 self.tipnode = cl.node(tiprev)
f0eeb9b3444a branchmap: make update a method
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 18130
diff changeset
601 self.tiprev = tiprev
48687
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
602 self.filteredhash = scmutil.filteredhash(
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
603 repo, self.tiprev, needobsolete=True
f8f2ecdde4b5 branchmap: skip obsolete revisions while computing heads
Anton Shestakov <av6@dwimlabs.net>
parents: 48677
diff changeset
604 )
21031
05cfcecb3aef branchmap: log events related to branch cache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 20264
diff changeset
605
30975
22fbca1d11ed mercurial: switch to util.timer for all interval timings
Simon Farnsworth <simonfar@fb.com>
parents: 29746
diff changeset
606 duration = util.timer() - starttime
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
607 repo.ui.log(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
608 b'branchcache',
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
609 b'updated %s in %.4f seconds\n',
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
610 _branchcachedesc(repo),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
611 duration,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
612 )
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
613
41566
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
614 self.write(repo)
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
615
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
616
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
617 class remotebranchcache(branchcache):
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
618 """Branchmap info for a remote connection, should not write locally"""
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
619
41566
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
620 def write(self, repo):
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
621 pass
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
622
eb7ce452e0fb branchmap: updating triggers a write
Martijn Pieters <mj@octobus.net>
parents: 41565
diff changeset
623
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
624 # Revision branch info cache
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
625
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
626 _rbcversion = b'-v1'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
627 _rbcnames = b'rbc-names' + _rbcversion
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
628 _rbcrevs = b'rbc-revs' + _rbcversion
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
629 # [4 byte hash prefix][4 byte branch name number with sign bit indicating open]
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
630 _rbcrecfmt = b'>4sI'
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
631 _rbcrecsize = calcsize(_rbcrecfmt)
46360
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
632 _rbcmininc = 64 * _rbcrecsize
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
633 _rbcnodelen = 4
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
634 _rbcbranchidxmask = 0x7FFFFFFF
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
635 _rbccloseflag = 0x80000000
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
636
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
637
48946
642e31cb55f0 py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents: 48935
diff changeset
638 class revbranchcache:
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
639 """Persistent cache, mapping from revision number to branch name and close.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
640 This is a low level cache, independent of filtering.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
641
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
642 Branch names are stored in rbc-names in internal encoding separated by 0.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
643 rbc-names is append-only, and each branch name is only stored once and will
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
644 thus have a unique index.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
645
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
646 The branch info for each revision is stored in rbc-revs as constant size
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
647 records. The whole file is read into memory, but it is only 'parsed' on
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
648 demand. The file is usually append-only but will be truncated if repo
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
649 modification is detected.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
650 The record for each revision contains the first 4 bytes of the
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
651 corresponding node hash, and the record is only used if it still matches.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
652 Even a completely trashed rbc-revs fill thus still give the right result
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
653 while converging towards full recovery ... assuming no incorrectly matching
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
654 node hashes.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
655 The record also contains 4 bytes where 31 bits contains the index of the
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
656 branch and the last bit indicate that it is a branch close commit.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
657 The usage pattern for rbc-revs is thus somewhat similar to 00changelog.i
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
658 and will grow with it but be 1/8th of its size.
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
659 """
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
660
24159
5b4ed033390b revisionbranchcache: fall back to slow path if starting readonly (issue4531)
Mads Kiilerich <madski@unity3d.com>
parents: 23877
diff changeset
661 def __init__(self, repo, readonly=True):
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
662 assert repo.filtername is None
24374
77fd1fb538cd revbranchcache: store repo on the object
Durham Goode <durham@fb.com>
parents: 24373
diff changeset
663 self._repo = repo
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
664 self._names = [] # branch names in local encoding with static index
31346
2a18e9e6ca43 py3: use bytearray() instead of array('c', ...) constructions
Augie Fackler <augie@google.com>
parents: 30975
diff changeset
665 self._rbcrevs = bytearray()
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
666 self._rbcsnameslen = 0 # length of names read at _rbcsnameslen
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
667 try:
33535
755e6532e81d cachevfs: migration the revbranchcache to 'cachevfs'
Boris Feld <boris.feld@octobus.net>
parents: 33534
diff changeset
668 bndata = repo.cachevfs.read(_rbcnames)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
669 self._rbcsnameslen = len(bndata) # for verification before writing
31371
7dd2f51f38ac rbc: empty (and invalid) rbc-names file should give an empty name list
Mads Kiilerich <mads@kiilerich.com>
parents: 31370
diff changeset
670 if bndata:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
671 self._names = [
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
672 encoding.tolocal(bn) for bn in bndata.split(b'\0')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
673 ]
29423
d2c6f3a948fa branchmap: remove unused exception variable
Gregory Szorc <gregory.szorc@gmail.com>
parents: 28558
diff changeset
674 except (IOError, OSError):
24159
5b4ed033390b revisionbranchcache: fall back to slow path if starting readonly (issue4531)
Mads Kiilerich <madski@unity3d.com>
parents: 23877
diff changeset
675 if readonly:
5b4ed033390b revisionbranchcache: fall back to slow path if starting readonly (issue4531)
Mads Kiilerich <madski@unity3d.com>
parents: 23877
diff changeset
676 # don't try to use cache - fall back to the slow path
5b4ed033390b revisionbranchcache: fall back to slow path if starting readonly (issue4531)
Mads Kiilerich <madski@unity3d.com>
parents: 23877
diff changeset
677 self.branchinfo = self._branchinfo
5b4ed033390b revisionbranchcache: fall back to slow path if starting readonly (issue4531)
Mads Kiilerich <madski@unity3d.com>
parents: 23877
diff changeset
678
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
679 if self._names:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
680 try:
33535
755e6532e81d cachevfs: migration the revbranchcache to 'cachevfs'
Boris Feld <boris.feld@octobus.net>
parents: 33534
diff changeset
681 data = repo.cachevfs.read(_rbcrevs)
31346
2a18e9e6ca43 py3: use bytearray() instead of array('c', ...) constructions
Augie Fackler <augie@google.com>
parents: 30975
diff changeset
682 self._rbcrevs[:] = data
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25266
diff changeset
683 except (IOError, OSError) as inst:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
684 repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
685 b"couldn't read revision branch cache: %s\n"
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
686 % stringutil.forcebytestr(inst)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
687 )
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
688 # remember number of good records on disk
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
689 self._rbcrevslen = min(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
690 len(self._rbcrevs) // _rbcrecsize, len(repo.changelog)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
691 )
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
692 if self._rbcrevslen == 0:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
693 self._names = []
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
694 self._rbcnamescount = len(self._names) # number of names read at
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
695 # _rbcsnameslen
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
696
28558
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
697 def _clear(self):
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
698 self._rbcsnameslen = 0
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
699 del self._names[:]
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
700 self._rbcnamescount = 0
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
701 self._rbcrevslen = len(self._repo.changelog)
31346
2a18e9e6ca43 py3: use bytearray() instead of array('c', ...) constructions
Augie Fackler <augie@google.com>
parents: 30975
diff changeset
702 self._rbcrevs = bytearray(self._rbcrevslen * _rbcrecsize)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
703 util.clearcachedproperty(self, b'_namesreverse')
40710
50a64c321c1e branchmap: build the revbranchcache._namesreverse() only when required
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 40425
diff changeset
704
50a64c321c1e branchmap: build the revbranchcache._namesreverse() only when required
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 40425
diff changeset
705 @util.propertycache
50a64c321c1e branchmap: build the revbranchcache._namesreverse() only when required
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 40425
diff changeset
706 def _namesreverse(self):
44452
9d2b2df2c2ba cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents: 44306
diff changeset
707 return {b: r for r, b in enumerate(self._names)}
28558
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
708
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
709 def branchinfo(self, rev):
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
710 """Return branch name and close flag for rev, using and updating
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
711 persistent cache."""
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
712 changelog = self._repo.changelog
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
713 rbcrevidx = rev * _rbcrecsize
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
714
25266
38117278f295 revbranchcache: return uncached branchinfo for nullrev (issue4683)
Yuya Nishihara <yuya@tcha.org>
parents: 24728
diff changeset
715 # avoid negative index, changelog.read(nullrev) is fast without cache
38117278f295 revbranchcache: return uncached branchinfo for nullrev (issue4683)
Yuya Nishihara <yuya@tcha.org>
parents: 24728
diff changeset
716 if rev == nullrev:
38117278f295 revbranchcache: return uncached branchinfo for nullrev (issue4683)
Yuya Nishihara <yuya@tcha.org>
parents: 24728
diff changeset
717 return changelog.branchinfo(rev)
38117278f295 revbranchcache: return uncached branchinfo for nullrev (issue4683)
Yuya Nishihara <yuya@tcha.org>
parents: 24728
diff changeset
718
29604
db0095c83344 rbc: fix invalid rbc-revs entries caused by missing cache growth
Mads Kiilerich <madski@unity3d.com>
parents: 29423
diff changeset
719 # if requested rev isn't allocated, grow and cache the rev info
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
720 if len(self._rbcrevs) < rbcrevidx + _rbcrecsize:
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
721 return self._branchinfo(rev)
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
722
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
723 # fast path: extract data from cache, use it if node is matching
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
724 reponode = changelog.node(rev)[:_rbcnodelen]
33663
1814ca418b30 branchmap: revert c34532365b38 for Python 2.7 compatibility
Mike Hommey <mh@glandium.org>
parents: 33535
diff changeset
725 cachenode, branchidx = unpack_from(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
726 _rbcrecfmt, util.buffer(self._rbcrevs), rbcrevidx
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
727 )
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
728 close = bool(branchidx & _rbccloseflag)
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
729 if close:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
730 branchidx &= _rbcbranchidxmask
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
731 if cachenode == b'\0\0\0\0':
24376
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
732 pass
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
733 elif cachenode == reponode:
29615
a2a380e2750f rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
Mads Kiilerich <madski@unity3d.com>
parents: 29604
diff changeset
734 try:
28558
bcd106d456c4 cache: rebuild branch cache from scratch when inconsistencies are detected
Mads Kiilerich <madski@unity3d.com>
parents: 28557
diff changeset
735 return self._names[branchidx], close
29615
a2a380e2750f rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
Mads Kiilerich <madski@unity3d.com>
parents: 29604
diff changeset
736 except IndexError:
a2a380e2750f rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
Mads Kiilerich <madski@unity3d.com>
parents: 29604
diff changeset
737 # recover from invalid reference to unknown branch
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
738 self._repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
739 b"referenced branch names not found"
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
740 b" - rebuilding revision branch cache from scratch\n"
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
741 )
29615
a2a380e2750f rbc: fix superfluous rebuilding from scratch - don't abuse self._rbcnamescount
Mads Kiilerich <madski@unity3d.com>
parents: 29604
diff changeset
742 self._clear()
24376
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
743 else:
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
744 # rev/node map has changed, invalidate the cache from here up
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
745 self._repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
746 b"history modification detected - truncating "
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
747 b"revision branch cache to revision %d\n" % rev
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
748 )
24376
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
749 truncate = rbcrevidx + _rbcrecsize
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
750 del self._rbcrevs[truncate:]
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
751 self._rbcrevslen = min(self._rbcrevslen, truncate)
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
752
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
753 # fall back to slow path and make sure it will be written to disk
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
754 return self._branchinfo(rev)
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
755
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
756 def _branchinfo(self, rev):
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
757 """Retrieve branch info from changelog and update _rbcrevs"""
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
758 changelog = self._repo.changelog
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
759 b, close = changelog.branchinfo(rev)
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
760 if b in self._namesreverse:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
761 branchidx = self._namesreverse[b]
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
762 else:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
763 branchidx = len(self._names)
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
764 self._names.append(b)
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
765 self._namesreverse[b] = branchidx
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
766 reponode = changelog.node(rev)
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
767 if close:
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
768 branchidx |= _rbccloseflag
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
769 self._setcachedata(rev, reponode, branchidx)
24375
fe255b2525d5 revbranchcache: move entry writing to a separate function
Durham Goode <durham@fb.com>
parents: 24374
diff changeset
770 return b, close
fe255b2525d5 revbranchcache: move entry writing to a separate function
Durham Goode <durham@fb.com>
parents: 24374
diff changeset
771
46372
3e91d9978bec branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents: 46360
diff changeset
772 def setdata(self, rev, changelogrevision):
36962
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
773 """add new data information to the cache"""
46372
3e91d9978bec branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents: 46360
diff changeset
774 branch, close = changelogrevision.branchinfo
3e91d9978bec branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents: 46360
diff changeset
775
36962
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
776 if branch in self._namesreverse:
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
777 branchidx = self._namesreverse[branch]
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
778 else:
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
779 branchidx = len(self._names)
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
780 self._names.append(branch)
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
781 self._namesreverse[branch] = branchidx
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
782 if close:
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
783 branchidx |= _rbccloseflag
46372
3e91d9978bec branchmap: update rev-branch-cache incrementally
Joerg Sonnenberger <joerg@bec.de>
parents: 46360
diff changeset
784 self._setcachedata(rev, self._repo.changelog.node(rev), branchidx)
36962
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
785 # If no cache data were readable (non exists, bad permission, etc)
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
786 # the cache was bypassing itself by setting:
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
787 #
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
788 # self.branchinfo = self._branchinfo
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
789 #
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
790 # Since we now have data in the cache, we need to drop this bypassing.
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43499
diff changeset
791 if 'branchinfo' in vars(self):
36962
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
792 del self.branchinfo
95f4f1bfb650 revbranchcache: add a public function to update the data
Boris Feld <boris.feld@octobus.net>
parents: 36474
diff changeset
793
40425
5e5c8f2a1eb5 branchmap: do not specify changelog as an argument
Yuya Nishihara <yuya@tcha.org>
parents: 40375
diff changeset
794 def _setcachedata(self, rev, node, branchidx):
24375
fe255b2525d5 revbranchcache: move entry writing to a separate function
Durham Goode <durham@fb.com>
parents: 24374
diff changeset
795 """Writes the node's branch data to the in-memory cache data."""
31454
a5bad127128d branchmap: handle nullrev in setcachedata
Durham Goode <durham@fb.com>
parents: 31381
diff changeset
796 if rev == nullrev:
a5bad127128d branchmap: handle nullrev in setcachedata
Durham Goode <durham@fb.com>
parents: 31381
diff changeset
797 return
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
798 rbcrevidx = rev * _rbcrecsize
46360
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
799 requiredsize = rbcrevidx + _rbcrecsize
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
800 rbccur = len(self._rbcrevs)
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
801 if rbccur < requiredsize:
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
802 # bytearray doesn't allocate extra space at least in Python 3.7.
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
803 # When multiple changesets are added in a row, precise resize would
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
804 # result in quadratic complexity. Overallocate to compensate by
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
805 # use the classic doubling technique for dynamic arrays instead.
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
806 # If there was a gap in the map before, less space will be reserved.
1726a53a8494 reverse-branch-cache: switch to doubling allocating scheme
Joerg Sonnenberger <joerg@bec.de>
parents: 46254
diff changeset
807 self._rbcrevs.extend(b'\0' * max(_rbcmininc, requiredsize))
31370
906be86990c4 rbc: use struct unpack_from and pack_into instead of unpack and pack
Mads Kiilerich <madski@unity3d.com>
parents: 31360
diff changeset
808 pack_into(_rbcrecfmt, self._rbcrevs, rbcrevidx, node, branchidx)
24376
203a078da052 revbranchcache: populate cache incrementally
Durham Goode <durham@fb.com>
parents: 24375
diff changeset
809 self._rbcrevslen = min(self._rbcrevslen, rev)
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
810
24377
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24376
diff changeset
811 tr = self._repo.currenttransaction()
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24376
diff changeset
812 if tr:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
813 tr.addfinalize(b'write-revbranchcache', self.write)
24377
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24376
diff changeset
814
656f93ce66d5 revbranchcache: move cache writing to the transaction finalizer
Durham Goode <durham@fb.com>
parents: 24376
diff changeset
815 def write(self, tr=None):
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
816 """Save branch cache if it is dirty."""
24374
77fd1fb538cd revbranchcache: store repo on the object
Durham Goode <durham@fb.com>
parents: 24373
diff changeset
817 repo = self._repo
29744
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
818 wlock = None
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
819 step = b''
29744
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
820 try:
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
821 # write the new names
29743
9f3c49ee4486 branchmap: preparatory indent of indent the branch rev writing code
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29615
diff changeset
822 if self._rbcnamescount < len(self._names):
29744
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
823 wlock = repo.wlock(wait=False)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
824 step = b' names'
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
825 self._writenames(repo)
23785
cb99bacb9b4e branchcache: introduce revbranchcache for caching of revision branch names
Mads Kiilerich <madski@unity3d.com>
parents: 22357
diff changeset
826
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
827 # write the new revs
29743
9f3c49ee4486 branchmap: preparatory indent of indent the branch rev writing code
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29615
diff changeset
828 start = self._rbcrevslen * _rbcrecsize
9f3c49ee4486 branchmap: preparatory indent of indent the branch rev writing code
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29615
diff changeset
829 if start != len(self._rbcrevs):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
830 step = b''
29744
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
831 if wlock is None:
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
832 wlock = repo.wlock(wait=False)
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
833 self._writerevs(repo, start)
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
834
29745
3b184adfb5be branchmap: simplify error handlind when writing rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29744
diff changeset
835 except (IOError, OSError, error.Abort, error.LockError) as inst:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
836 repo.ui.debug(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
837 b"couldn't write revision branch cache%s: %s\n"
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
838 % (step, stringutil.forcebytestr(inst))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
839 )
29744
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
840 finally:
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
841 if wlock is not None:
0d588332ad2c branchmap: acquires lock before writting the rev branch cache
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 29743
diff changeset
842 wlock.release()
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
843
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
844 def _writenames(self, repo):
47062
f38bf44e077f black: make codebase compatible with black v21.4b2 and v20.8b1
Kyle Lippincott <spectral@google.com>
parents: 46819
diff changeset
845 """write the new branch names to revbranchcache"""
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
846 if self._rbcnamescount != 0:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
847 f = repo.cachevfs.open(_rbcnames, b'ab')
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
848 if f.tell() == self._rbcsnameslen:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
849 f.write(b'\0')
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
850 else:
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
851 f.close()
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
852 repo.ui.debug(b"%s changed - rewriting it\n" % _rbcnames)
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
853 self._rbcnamescount = 0
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
854 self._rbcrevslen = 0
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
855 if self._rbcnamescount == 0:
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
856 # before rewriting names, make sure references are removed
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
857 repo.cachevfs.unlinkpath(_rbcrevs, ignoremissing=True)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
858 f = repo.cachevfs.open(_rbcnames, b'wb')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
859 f.write(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
860 b'\0'.join(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
861 encoding.fromlocal(b)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
862 for b in self._names[self._rbcnamescount :]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
863 )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 42603
diff changeset
864 )
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
865 self._rbcsnameslen = f.tell()
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
866 f.close()
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
867 self._rbcnamescount = len(self._names)
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
868
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
869 def _writerevs(self, repo, start):
47062
f38bf44e077f black: make codebase compatible with black v21.4b2 and v20.8b1
Kyle Lippincott <spectral@google.com>
parents: 46819
diff changeset
870 """write the new revs to revbranchcache"""
42185
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
871 revs = min(len(repo.changelog), len(self._rbcrevs) // _rbcrecsize)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
872 with repo.cachevfs.open(_rbcrevs, b'ab') as f:
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
873 if f.tell() != start:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
874 repo.ui.debug(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
875 b"truncating cache/%s to %d\n" % (_rbcrevs, start)
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
876 )
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
877 f.seek(start)
42185
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
878 if f.tell() != start:
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
879 start = 0
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
880 f.seek(start)
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
881 f.truncate()
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
882 end = revs * _rbcrecsize
ececa45c80d8 revbranchcache: use context manager in _writerevs() to write to file
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42184
diff changeset
883 f.write(self._rbcrevs[start:end])
42184
09fd338522fa revbranchcache: factor logic to write names and revs in separate functions
Pulkit Goyal <pulkit@yandex-team.ru>
parents: 42138
diff changeset
884 self._rbcrevslen = revs