|
|
# 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 .node import nullid
|
|
|
|
|
|
from . import (
|
|
|
changelog,
|
|
|
cmdutil,
|
|
|
error,
|
|
|
filelog,
|
|
|
localrepo,
|
|
|
manifest,
|
|
|
mdiff,
|
|
|
pathutil,
|
|
|
pycompat,
|
|
|
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 self.baserevdiff(rev1, rev2)
|
|
|
|
|
|
return mdiff.textdiff(self.revision(rev1), self.revision(rev2))
|
|
|
|
|
|
def revision(self, nodeorrev, _df=None, raw=False):
|
|
|
"""return an uncompressed revision of a given node or revision
|
|
|
number.
|
|
|
"""
|
|
|
if isinstance(nodeorrev, int):
|
|
|
rev = nodeorrev
|
|
|
node = self.node(rev)
|
|
|
else:
|
|
|
node = nodeorrev
|
|
|
rev = self.rev(node)
|
|
|
|
|
|
if node == nullid:
|
|
|
return ""
|
|
|
|
|
|
if rev > self.repotiprev:
|
|
|
text = self.revlog2.revision(node)
|
|
|
self._cache = (node, rev, text)
|
|
|
else:
|
|
|
text = self.baserevision(rev)
|
|
|
# already cached
|
|
|
return text
|
|
|
|
|
|
def baserevision(self, nodeorrev):
|
|
|
# Revlog subclasses may override 'revision' method to modify format of
|
|
|
# content retrieved from revlog. To use unionrevlog with such class one
|
|
|
# needs to override 'baserevision' and make more specific call here.
|
|
|
return revlog.revlog.revision(self, nodeorrev)
|
|
|
|
|
|
def baserevdiff(self, rev1, rev2):
|
|
|
# Exists for the same purpose as baserevision.
|
|
|
return revlog.revlog.revdiff(self, rev1, rev2)
|
|
|
|
|
|
def addrevision(self, text, transaction, link, p1=None, p2=None, d=None):
|
|
|
raise NotImplementedError
|
|
|
def addgroup(self, deltas, transaction, addrevisioncb=None):
|
|
|
raise NotImplementedError
|
|
|
def strip(self, rev, minlink):
|
|
|
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)
|
|
|
|
|
|
def baserevision(self, nodeorrev):
|
|
|
# Although changelog doesn't override 'revision' method, some extensions
|
|
|
# may replace this class with another that does. Same story with
|
|
|
# manifest and filelog classes.
|
|
|
return changelog.changelog.revision(self, nodeorrev)
|
|
|
|
|
|
def baserevdiff(self, rev1, rev2):
|
|
|
return changelog.changelog.revdiff(self, rev1, rev2)
|
|
|
|
|
|
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)
|
|
|
|
|
|
def baserevision(self, nodeorrev):
|
|
|
return manifest.manifestrevlog.revision(self, nodeorrev)
|
|
|
|
|
|
def baserevdiff(self, rev1, rev2):
|
|
|
return manifest.manifestrevlog.revdiff(self, rev1, rev2)
|
|
|
|
|
|
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 baserevision(self, nodeorrev):
|
|
|
return filelog.filelog.revision(self, nodeorrev)
|
|
|
|
|
|
def baserevdiff(self, rev1, rev2):
|
|
|
return filelog.filelog.revdiff(self, rev1, rev2)
|
|
|
|
|
|
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(localrepo.localrepository):
|
|
|
def __init__(self, ui, path, path2):
|
|
|
localrepo.localrepository.__init__(self, ui, path)
|
|
|
self.ui.setconfig('phases', 'publish', False, 'unionrepo')
|
|
|
|
|
|
self._url = 'union:%s+%s' % (util.expandpath(path),
|
|
|
util.expandpath(path2))
|
|
|
self.repo2 = localrepo.localrepository(ui, path2)
|
|
|
|
|
|
@localrepo.unfilteredpropertycache
|
|
|
def changelog(self):
|
|
|
return unionchangelog(self.svfs, self.repo2.svfs)
|
|
|
|
|
|
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 _constructmanifest(self):
|
|
|
return unionmanifest(self.svfs, self.repo2.svfs,
|
|
|
self.unfiltered()._clrev)
|
|
|
|
|
|
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 pycompat.getcwd() # always outside the repo
|
|
|
|
|
|
def instance(ui, path, create, intents=None, createopts=None):
|
|
|
if create:
|
|
|
raise error.Abort(_('cannot create new union repository'))
|
|
|
parentpath = ui.config("bundle", "mainreporoot")
|
|
|
if not parentpath:
|
|
|
# try to find the correct path to the working directory repo
|
|
|
parentpath = cmdutil.findrepo(pycompat.getcwd())
|
|
|
if parentpath is None:
|
|
|
parentpath = ''
|
|
|
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 = pycompat.getcwd()
|
|
|
if parentpath == cwd:
|
|
|
parentpath = ''
|
|
|
else:
|
|
|
cwd = pathutil.normasprefix(cwd)
|
|
|
if parentpath.startswith(cwd):
|
|
|
parentpath = parentpath[len(cwd):]
|
|
|
if path.startswith('union:'):
|
|
|
s = path.split(":", 1)[1].split("+", 1)
|
|
|
if len(s) == 1:
|
|
|
repopath, repopath2 = parentpath, s[0]
|
|
|
else:
|
|
|
repopath, repopath2 = s
|
|
|
else:
|
|
|
repopath, repopath2 = parentpath, path
|
|
|
return unionrepository(ui, repopath, repopath2)
|
|
|
|
