Mercurial > hg
view mercurial/unionrepo.py @ 43257:675c776fbcd1
sidedatacopies: directly fetch copies information from sidedata
When using the sidedata mode, we don't need a complicated and expensive
`context` object. Instead we directly fetch copies information from the
sidedata (through a changelogrevision object). More optimisations coming.
revision: large amount; added files: large amount; rename small amount; c3b14617fbd7 9ba6ab77fd29
filelog: ! wall 3.679613 comb 3.680000 user 3.580000 sys 0.100000 (median of 3)
base: ! wall 8.884369 comb 8.880000 user 8.850000 sys 0.030000 (median of 3)
before: ! wall 4.681985 comb 4.680000 user 4.640000 sys 0.040000 (median of 3)
after: ! wall 3.955894 comb 3.950000 user 3.940000 sys 0.010000 (median of 3)
revision: large amount; added files: small amount; rename small amount; c3b14617fbd7 f650a9b140d2
filelog: ! wall 0.003357 comb 0.010000 user 0.010000 sys 0.000000 (median of 781)
base: ! wall 12.398524 comb 12.400000 user 12.330000 sys 0.070000 (median of 3)
before: ! wall 6.459592 comb 6.470000 user 6.390000 sys 0.080000 (median of 3)
after: ! wall 5.505774 comb 5.500000 user 5.410000 sys 0.090000 (median of 3)
revision: large amount; added files: large amount; rename large amount; 08ea3258278e d9fa043f30c0
filelog: ! wall 2.754687 comb 2.760000 user 2.650000 sys 0.110000 (median of 4)
base: ! wall 1.423166 comb 1.420000 user 1.400000 sys 0.020000 (median of 8)
before: ! wall 0.961048 comb 0.960000 user 0.940000 sys 0.020000 (median of 11)
after: ! wall 0.882950 comb 0.880000 user 0.880000 sys 0.000000 (median of 11)
revision: small amount; added files: large amount; rename large amount; df6f7a526b60 a83dc6a2d56f
filelog: ! wall 1.552293 comb 1.550000 user 1.510000 sys 0.040000 (median of 6
base: ! wall 0.022662 comb 0.020000 user 0.020000 sys 0.000000 (median of 128)
before: ! wall 0.021649 comb 0.020000 user 0.020000 sys 0.000000 (median of 135)
after: ! wall 0.020951 comb 0.020000 user 0.020000 sys 0.000000 (median of 141)
revision: small amount; added files: large amount; rename small amount; 4aa4e1f8e19a 169138063d63
filelog: ! wall 1.500983 comb 1.500000 user 1.420000 sys 0.080000 (median of 7)
base: ! wall 0.006956 comb 0.010000 user 0.010000 sys 0.000000 (median of 392)
before: ! wall 0.004022 comb 0.000000 user 0.000000 sys 0.000000 (median of 735)
after: ! wall 0.003988 comb 0.000000 user 0.000000 sys 0.000000 (median of 736)
revision: small amount; added files: small amount; rename small amount; 4bc173b045a6 964879152e2e
filelog: ! wall 0.011745 comb 0.020000 user 0.020000 sys 0.000000 (median of 250)
base: ! wall 0.000156 comb 0.000000 user 0.000000 sys 0.000000 (median of 17180)
before: ! wall 0.000118 comb 0.000000 user 0.000000 sys 0.000000 (median of 19170)
after: ! wall 0.000097 comb 0.000000 user 0.000000 sys 0.000000 (median of 27276)
revision: medium amount; added files: large amount; rename medium amount; c95f1ced15f2 2c68e87c3efe
filelog: ! wall 3.228230 comb 3.230000 user 3.110000 sys 0.120000 (median of 4)
base: ! wall 0.997640 comb 1.000000 user 0.980000 sys 0.020000 (median of 10)
before: ! wall 0.679500 comb 0.680000 user 0.680000 sys 0.000000 (median of 15)
after: ! wall 0.596779 comb 0.600000 user 0.600000 sys 0.000000 (median of 17)
revision: medium amount; added files: medium amount; rename small amount; d343da0c55a8 d7746d32bf9d
filelog: ! wall 1.052501 comb 1.060000 user 1.040000 sys 0.020000 (median of 10
base: ! wall 0.214519 comb 0.220000 user 0.220000 sys 0.000000 (median of 45)
before: ! wall 0.149675 comb 0.150000 user 0.150000 sys 0.000000 (median of 66)
after: ! wall 0.130786 comb 0.130000 user 0.130000 sys 0.000000 (median of 75)
Differential Revision: https://phab.mercurial-scm.org/D7072
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 02 Oct 2019 17:53:47 -0400 |
parents | c59eb1560c44 |
children | 642433629e20 |
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# unionrepo.py - repository class for viewing union of repository changesets # # Derived from bundlerepo.py # Copyright 2006, 2007 Benoit Boissinot <bboissin@gmail.com> # Copyright 2013 Unity Technologies, Mads Kiilerich <madski@unity3d.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. """Repository class for "in-memory pull" of one local repository to another, allowing operations like diff and log with revsets. """ from __future__ import absolute_import from .i18n import _ from .pycompat import getattr from . import ( changelog, cmdutil, encoding, error, filelog, localrepo, manifest, mdiff, pathutil, revlog, util, vfs as vfsmod, ) class unionrevlog(revlog.revlog): def __init__(self, opener, indexfile, revlog2, linkmapper): # How it works: # To retrieve a revision, we just need to know the node id so we can # look it up in revlog2. # # To differentiate a rev in the second revlog from a rev in the revlog, # we check revision against repotiprev. opener = vfsmod.readonlyvfs(opener) revlog.revlog.__init__(self, opener, indexfile) self.revlog2 = revlog2 n = len(self) self.repotiprev = n - 1 self.bundlerevs = set() # used by 'bundle()' revset expression for rev2 in self.revlog2: rev = self.revlog2.index[rev2] # rev numbers - in revlog2, very different from self.rev _start, _csize, rsize, base, linkrev, p1rev, p2rev, node = rev flags = _start & 0xFFFF if linkmapper is None: # link is to same revlog assert linkrev == rev2 # we never link back link = n else: # rev must be mapped from repo2 cl to unified cl by linkmapper link = linkmapper(linkrev) if linkmapper is not None: # link is to same revlog base = linkmapper(base) if node in self.nodemap: # this happens for the common revlog revisions self.bundlerevs.add(self.nodemap[node]) continue p1node = self.revlog2.node(p1rev) p2node = self.revlog2.node(p2rev) # TODO: it's probably wrong to set compressed length to None, but # I have no idea if csize is valid in the base revlog context. e = ( flags, None, rsize, base, link, self.rev(p1node), self.rev(p2node), node, ) self.index.append(e) self.nodemap[node] = n self.bundlerevs.add(n) n += 1 def _chunk(self, rev): if rev <= self.repotiprev: return revlog.revlog._chunk(self, rev) return self.revlog2._chunk(self.node(rev)) def revdiff(self, rev1, rev2): """return or calculate a delta between two revisions""" if rev1 > self.repotiprev and rev2 > self.repotiprev: return self.revlog2.revdiff( self.revlog2.rev(self.node(rev1)), self.revlog2.rev(self.node(rev2)), ) elif rev1 <= self.repotiprev and rev2 <= self.repotiprev: return super(unionrevlog, self).revdiff(rev1, rev2) return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2)) def _revisiondata(self, nodeorrev, _df=None, raw=False): if isinstance(nodeorrev, int): rev = nodeorrev node = self.node(rev) else: node = nodeorrev rev = self.rev(node) if rev > self.repotiprev: # work around manifestrevlog NOT being a revlog revlog2 = getattr(self.revlog2, '_revlog', self.revlog2) func = revlog2._revisiondata else: func = super(unionrevlog, self)._revisiondata return func(node, _df=_df, raw=raw) def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): raise NotImplementedError def addgroup( self, deltas, linkmapper, transaction, addrevisioncb=None, maybemissingparents=False, ): raise NotImplementedError def strip(self, minlink, transaction): raise NotImplementedError def checksize(self): raise NotImplementedError class unionchangelog(unionrevlog, changelog.changelog): def __init__(self, opener, opener2): changelog.changelog.__init__(self, opener) linkmapper = None changelog2 = changelog.changelog(opener2) unionrevlog.__init__( self, opener, self.indexfile, changelog2, linkmapper ) class unionmanifest(unionrevlog, manifest.manifestrevlog): def __init__(self, opener, opener2, linkmapper): manifest.manifestrevlog.__init__(self, opener) manifest2 = manifest.manifestrevlog(opener2) unionrevlog.__init__( self, opener, self.indexfile, manifest2, linkmapper ) class unionfilelog(filelog.filelog): def __init__(self, opener, path, opener2, linkmapper, repo): filelog.filelog.__init__(self, opener, path) filelog2 = filelog.filelog(opener2, path) self._revlog = unionrevlog( opener, self.indexfile, filelog2._revlog, linkmapper ) self._repo = repo self.repotiprev = self._revlog.repotiprev self.revlog2 = self._revlog.revlog2 def iscensored(self, rev): """Check if a revision is censored.""" if rev <= self.repotiprev: return filelog.filelog.iscensored(self, rev) node = self.node(rev) return self.revlog2.iscensored(self.revlog2.rev(node)) class unionpeer(localrepo.localpeer): def canpush(self): return False class unionrepository(object): """Represents the union of data in 2 repositories. Instances are not usable if constructed directly. Use ``instance()`` or ``makeunionrepository()`` to create a usable instance. """ def __init__(self, repo2, url): self.repo2 = repo2 self._url = url self.ui.setconfig(b'phases', b'publish', False, b'unionrepo') @localrepo.unfilteredpropertycache def changelog(self): return unionchangelog(self.svfs, self.repo2.svfs) @localrepo.unfilteredpropertycache def manifestlog(self): rootstore = unionmanifest( self.svfs, self.repo2.svfs, self.unfiltered()._clrev ) return manifest.manifestlog( self.svfs, self, rootstore, self.narrowmatch() ) def _clrev(self, rev2): """map from repo2 changelog rev to temporary rev in self.changelog""" node = self.repo2.changelog.node(rev2) return self.changelog.rev(node) def url(self): return self._url def file(self, f): return unionfilelog( self.svfs, f, self.repo2.svfs, self.unfiltered()._clrev, self ) def close(self): self.repo2.close() def cancopy(self): return False def peer(self): return unionpeer(self) def getcwd(self): return encoding.getcwd() # always outside the repo def instance(ui, path, create, intents=None, createopts=None): if create: raise error.Abort(_(b'cannot create new union repository')) parentpath = ui.config(b"bundle", b"mainreporoot") if not parentpath: # try to find the correct path to the working directory repo parentpath = cmdutil.findrepo(encoding.getcwd()) if parentpath is None: parentpath = b'' if parentpath: # Try to make the full path relative so we get a nice, short URL. # In particular, we don't want temp dir names in test outputs. cwd = encoding.getcwd() if parentpath == cwd: parentpath = b'' else: cwd = pathutil.normasprefix(cwd) if parentpath.startswith(cwd): parentpath = parentpath[len(cwd) :] if path.startswith(b'union:'): s = path.split(b":", 1)[1].split(b"+", 1) if len(s) == 1: repopath, repopath2 = parentpath, s[0] else: repopath, repopath2 = s else: repopath, repopath2 = parentpath, path return makeunionrepository(ui, repopath, repopath2) def makeunionrepository(ui, repopath1, repopath2): """Make a union repository object from 2 local repo paths.""" repo1 = localrepo.instance(ui, repopath1, create=False) repo2 = localrepo.instance(ui, repopath2, create=False) url = b'union:%s+%s' % ( util.expandpath(repopath1), util.expandpath(repopath2), ) class derivedunionrepository(unionrepository, repo1.__class__): pass repo = repo1 repo.__class__ = derivedunionrepository unionrepository.__init__(repo1, repo2, url) return repo