author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
Mon, 23 May 2011 17:15:47 +0200 | |
changeset 9 | 1f84a74df837 |
parent 7 | cc592295900f |
child 10 | 91169d2d7f1b |
permissions | -rw-r--r-- |
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# states.py - introduce the state concept for mercurial changeset |
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# |
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# Copyright 2011 Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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# Logilab SA <contact@logilab.fr> |
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# Augie Fackler <durin42@gmail.com> |
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# |
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# This software may be used and distributed according to the terms of the |
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# GNU General Public License version 2 or any later version. |
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'''introduce the state concept for mercurial changeset |
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Change can be in the following state: |
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0 immutable |
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1 mutable |
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2 private |
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name are not fixed yet. |
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''' |
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from functools import partial |
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from mercurial.i18n import _ |
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from mercurial import cmdutil |
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from mercurial import scmutil |
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from mercurial import context |
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from mercurial import revset |
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from mercurial import templatekw |
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from mercurial import util |
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from mercurial import node |
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from mercurial.node import nullid, hex, short |
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from mercurial import discovery |
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from mercurial import extensions |
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from mercurial import wireproto |
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_NOPULLPUSH=2 |
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_MUTABLE=1 |
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STATES = (0, _MUTABLE, _NOPULLPUSH | _MUTABLE) |
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def statename(state): |
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return str(STATES) |
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# util function |
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############################# |
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def noderange(repo, revsets): |
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return map(repo.changelog.node, |
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scmutil.revrange(repo, revsets)) |
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# Patch changectx |
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############################# |
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def state(ctx): |
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return ctx._repo.nodestate(ctx.node()) |
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context.changectx.state = state |
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# improve template |
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############################# |
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def showstate(ctx, **args): |
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return ctx.state() |
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# New revset predicate |
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############################# |
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def revsetstatehead(state): |
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def revsetpublicheads(repo, subset, x): |
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args = revset.getargs(x, 0, 0, 'publicheads takes no arguments') |
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heads = map(repo.changelog.rev, repo._statesheads[state]) |
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heads.sort() |
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return heads |
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return revsetpublicheads |
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def extsetup(ui): |
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revset.symbols['frozenheads'] = revsetstatehead(0) |
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revset.symbols['publicheads'] = revsetstatehead(1) |
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REVSETHEADS = {0: 'frozenheads()', |
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1: 'publicheads()'} |
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# New commands |
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############################# |
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def cmdsetstate(ui, repo, state, *changesets): |
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"""turn private changesets into public ones""" |
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#assert repo.ui.configbool('private', 'enable', False) |
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state = int(state) #for now |
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revs = scmutil.revrange(repo, changesets) |
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repo.setstate(state, [repo.changelog.node(rev) for rev in revs]) |
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return 0 |
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cmdtable = { |
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'setstate': (cmdsetstate, [], _('state <revset>')), |
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} |
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templatekw.keywords['state'] = showstate |
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def uisetup(ui): |
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def filterprivateout(orig, repo, *args,**kwargs): |
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common, heads = orig(repo, *args, **kwargs) |
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return common, repo._reducehead(heads) |
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def filterprivatein(orig, repo, remote, *args, **kwargs): |
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108 |
common, anyinc, heads = orig(repo, remote, *args, **kwargs) |
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109 |
heads = remote._reducehead(heads) |
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110 |
return common, anyinc, heads |
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111 |
|
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112 |
extensions.wrapfunction(discovery, 'findcommonoutgoing', filterprivateout) |
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113 |
extensions.wrapfunction(discovery, 'findcommonincoming', filterprivatein) |
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114 |
|
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115 |
# Write protocols |
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116 |
#################### |
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117 |
def heads(repo, proto): |
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118 |
h = repo._publicheads |
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119 |
return wireproto.encodelist(h) + "\n" |
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120 |
|
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121 |
def _reducehead(wirerepo, heads): |
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122 |
"""heads filtering is done repo side""" |
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123 |
return heads |
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124 |
|
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125 |
wireproto.wirerepository._reducehead = _reducehead |
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126 |
wireproto.commands['heads'] = (heads, '') |
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127 |
|
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128 |
def reposetup(ui, repo): |
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129 |
|
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130 |
if not repo.local(): |
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131 |
return |
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132 |
|
5 | 133 |
o_cancopy =repo.cancopy |
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134 |
class statefulrepo(repo.__class__): |
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135 |
|
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136 |
def nodestate(self, node): |
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137 |
rev = self.changelog.rev(node) |
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138 |
for head in self._publicheads: |
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139 |
revhead = self.changelog.rev(head) |
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140 |
if self.changelog.descendant(revhead, rev): |
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|
141 |
return STATES[2] |
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142 |
for head in self._frozenheads: |
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143 |
revhead = self.changelog.rev(head) |
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144 |
if self.changelog.descendant(revhead, rev): |
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145 |
return STATES[1] |
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|
146 |
return STATES[0] |
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147 |
|
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148 |
@property |
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149 |
def _publicheads(self): |
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150 |
if self.ui.configbool('states', 'private', False): |
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151 |
return self._statesheads[1] |
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152 |
return self.heads() |
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153 |
|
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154 |
@property |
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155 |
def _frozenheads(self): |
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156 |
if self.ui.configbool('states', 'liquid', False): |
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|
157 |
return self._statesheads[O] |
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158 |
return self.heads() |
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159 |
|
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160 |
@util.propertycache |
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161 |
def _statesheads(self): |
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162 |
return self._readstatesheads() |
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163 |
|
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164 |
|
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165 |
def _readheadsfile(self, filename): |
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|
166 |
heads = [nullid] |
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|
167 |
try: |
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|
168 |
f = self.opener(filename) |
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169 |
try: |
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170 |
heads = sorted([node.bin(n) for n in f.read().split() if n]) |
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|
171 |
finally: |
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|
172 |
f.close() |
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|
173 |
except IOError: |
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|
174 |
pass |
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|
175 |
return heads |
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|
176 |
def _readstatesheads(self): |
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|
177 |
statesheads = {} |
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|
178 |
statesheads[0] = self._readheadsfile('frozenheads') |
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|
179 |
statesheads[1] = self._readheadsfile('publicheads') |
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|
180 |
return statesheads |
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|
181 |
|
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|
182 |
def _writeheadsfile(self, filename, heads): |
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|
183 |
f = self.opener(filename, 'w', atomictemp=True) |
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|
184 |
try: |
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|
185 |
for h in heads: |
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|
186 |
f.write(hex(h) + '\n') |
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|
187 |
f.rename() |
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|
188 |
finally: |
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|
189 |
f.close() |
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|
190 |
|
1
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|
191 |
def _writestateshead(self): |
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|
192 |
# transaction! |
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|
193 |
self._writeheadsfile('frozenheads', self._statesheads[0]) |
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|
194 |
self._writeheadsfile('publicheads', self._statesheads[1]) |
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195 |
|
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|
196 |
def setstate(self, state, nodes): |
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|
197 |
"""freeze targets changeset and it's ancestors. |
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198 |
|
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|
199 |
Simplify the list of head.""" |
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200 |
heads = self._statesheads[state] |
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|
201 |
olds = heads[:] |
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|
202 |
heads.extend(nodes) |
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203 |
heads[:] = set(heads) |
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204 |
heads.sort() |
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|
205 |
if olds != heads: |
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|
206 |
heads[:] = noderange(repo, ["heads(::%s)" % REVSETHEADS[state]]) |
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207 |
heads.sort() |
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|
208 |
if olds != heads: |
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209 |
self._writestateshead() |
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210 |
if state < 1: |
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|
211 |
self.setstate(1, nodes) # cascading |
1
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212 |
|
2
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|
213 |
def _reducehead(self, candidates): |
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selected = set() |
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for candidate in candidates: |
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rev = self.changelog.rev(candidate) |
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ok = True |
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hide private changeset to inc and pull.
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for h in self._publicheads: |
1
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revh = self.changelog.rev(h) |
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if self.changelog.descendant(revh, rev): |
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ok = False |
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selected.add(h) |
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if ok: |
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selected.add(candidate) |
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return sorted(selected) |
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|
5 | 227 |
def cancopy(self): |
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return o_cancopy() and (self._publicheads == self.heads()) |
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||
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minimalistic state concept.
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repo.__class__ = statefulrepo |
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