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comparison mercurial/localrepo.py @ 24956:48583a1e44f3

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treemanifest: set requires at repo creation time, ignore config after The very next changeset will start writing one revlog per directory when tree manifests are enabled. That is backwards incompatible, so it requires .hg/requires to be updated. Just like with generaldelta, we want to update .hg/requires only when the repo is created. Updating ..hg/requires is bad for repos on shared disk. Instead, those who do want to upgrade a repo to using treemanifest (or manifestv2, etc) can run hg clone --config experimental.treemanifest repo clone which will create a new repo with the requirement set. Unlike the case of e.g. generaldelta, it will not rewrite the changesets, since tree manifests hash differently.
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 05 May 2015 08:40:59 -0700
parents a02d293a1079
children 7df090c9c9fe
comparison
equal deleted inserted replaced
24955:1df233bcb7f6 24956:48583a1e44f3
190 def changegroupsubset(self, bases, heads, source): 190 def changegroupsubset(self, bases, heads, source):
191 return changegroup.changegroupsubset(self._repo, bases, heads, source) 191 return changegroup.changegroupsubset(self._repo, bases, heads, source)
192 192
193 class localrepository(object): 193 class localrepository(object):
194 194
195 supportedformats = set(('revlogv1', 'generaldelta', 'manifestv2')) 195 supportedformats = set(('revlogv1', 'generaldelta', 'treemanifest',
196 'manifestv2'))
196 _basesupported = supportedformats | set(('store', 'fncache', 'shared', 197 _basesupported = supportedformats | set(('store', 'fncache', 'shared',
197 'dotencode')) 198 'dotencode'))
198 openerreqs = set(('revlogv1', 'generaldelta', 'manifestv2')) 199 openerreqs = set(('revlogv1', 'generaldelta', 'treemanifest', 'manifestv2'))
199 filtername = None 200 filtername = None
200 201
201 # a list of (ui, featureset) functions. 202 # a list of (ui, featureset) functions.
202 # only functions defined in module of enabled extensions are invoked 203 # only functions defined in module of enabled extensions are invoked
203 featuresetupfuncs = set() 204 featuresetupfuncs = set()
257 '\0\0\0\2' # represents revlogv2 258 '\0\0\0\2' # represents revlogv2
258 ' dummy changelog to prevent using the old repo layout' 259 ' dummy changelog to prevent using the old repo layout'
259 ) 260 )
260 if self.ui.configbool('format', 'generaldelta', False): 261 if self.ui.configbool('format', 'generaldelta', False):
261 self.requirements.add("generaldelta") 262 self.requirements.add("generaldelta")
263 if self.ui.configbool('experimental', 'treemanifest', False):
264 self.requirements.add("treemanifest")
262 if self.ui.configbool('experimental', 'manifestv2', False): 265 if self.ui.configbool('experimental', 'manifestv2', False):
263 self.requirements.add("manifestv2") 266 self.requirements.add("manifestv2")
264 else: 267 else:
265 raise error.RepoError(_("repository %s not found") % path) 268 raise error.RepoError(_("repository %s not found") % path)
266 elif create: 269 elif create:
346 if maxchainlen is not None: 349 if maxchainlen is not None:
347 self.svfs.options['maxchainlen'] = maxchainlen 350 self.svfs.options['maxchainlen'] = maxchainlen
348 manifestcachesize = self.ui.configint('format', 'manifestcachesize') 351 manifestcachesize = self.ui.configint('format', 'manifestcachesize')
349 if manifestcachesize is not None: 352 if manifestcachesize is not None:
350 self.svfs.options['manifestcachesize'] = manifestcachesize 353 self.svfs.options['manifestcachesize'] = manifestcachesize
351 usetreemanifest = self.ui.configbool('experimental', 'treemanifest')
352 if usetreemanifest is not None:
353 self.svfs.options['usetreemanifest'] = usetreemanifest
354 354
355 def _writerequirements(self): 355 def _writerequirements(self):
356 scmutil.writerequires(self.vfs, self.requirements) 356 scmutil.writerequires(self.vfs, self.requirements)
357 357
358 def _checknested(self, path): 358 def _checknested(self, path):