363 lines
13 KiB
Python
363 lines
13 KiB
Python
# hg.py - hg backend for convert extension
|
|
#
|
|
# Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
|
|
#
|
|
# This software may be used and distributed according to the terms of the
|
|
# GNU General Public License version 2, incorporated herein by reference.
|
|
|
|
# Notes for hg->hg conversion:
|
|
#
|
|
# * Old versions of Mercurial didn't trim the whitespace from the ends
|
|
# of commit messages, but new versions do. Changesets created by
|
|
# those older versions, then converted, may thus have different
|
|
# hashes for changesets that are otherwise identical.
|
|
#
|
|
# * Using "--config convert.hg.saverev=true" will make the source
|
|
# identifier to be stored in the converted revision. This will cause
|
|
# the converted revision to have a different identity than the
|
|
# source.
|
|
|
|
|
|
import os, time, cStringIO
|
|
from mercurial.i18n import _
|
|
from mercurial.node import bin, hex, nullid
|
|
from mercurial import hg, util, context, error
|
|
|
|
from common import NoRepo, commit, converter_source, converter_sink
|
|
|
|
class mercurial_sink(converter_sink):
|
|
def __init__(self, ui, path):
|
|
converter_sink.__init__(self, ui, path)
|
|
self.branchnames = ui.configbool('convert', 'hg.usebranchnames', True)
|
|
self.clonebranches = ui.configbool('convert', 'hg.clonebranches', False)
|
|
self.tagsbranch = ui.config('convert', 'hg.tagsbranch', 'default')
|
|
self.lastbranch = None
|
|
if os.path.isdir(path) and len(os.listdir(path)) > 0:
|
|
try:
|
|
self.repo = hg.repository(self.ui, path)
|
|
if not self.repo.local():
|
|
raise NoRepo(_('%s is not a local Mercurial repo') % path)
|
|
except error.RepoError, err:
|
|
ui.traceback()
|
|
raise NoRepo(err.args[0])
|
|
else:
|
|
try:
|
|
ui.status(_('initializing destination %s repository\n') % path)
|
|
self.repo = hg.repository(self.ui, path, create=True)
|
|
if not self.repo.local():
|
|
raise NoRepo(_('%s is not a local Mercurial repo') % path)
|
|
self.created.append(path)
|
|
except error.RepoError:
|
|
ui.traceback()
|
|
raise NoRepo("could not create hg repo %s as sink" % path)
|
|
self.lock = None
|
|
self.wlock = None
|
|
self.filemapmode = False
|
|
|
|
def before(self):
|
|
self.ui.debug(_('run hg sink pre-conversion action\n'))
|
|
self.wlock = self.repo.wlock()
|
|
self.lock = self.repo.lock()
|
|
|
|
def after(self):
|
|
self.ui.debug(_('run hg sink post-conversion action\n'))
|
|
self.lock.release()
|
|
self.wlock.release()
|
|
|
|
def revmapfile(self):
|
|
return os.path.join(self.path, ".hg", "shamap")
|
|
|
|
def authorfile(self):
|
|
return os.path.join(self.path, ".hg", "authormap")
|
|
|
|
def getheads(self):
|
|
h = self.repo.changelog.heads()
|
|
return [ hex(x) for x in h ]
|
|
|
|
def setbranch(self, branch, pbranches):
|
|
if not self.clonebranches:
|
|
return
|
|
|
|
setbranch = (branch != self.lastbranch)
|
|
self.lastbranch = branch
|
|
if not branch:
|
|
branch = 'default'
|
|
pbranches = [(b[0], b[1] and b[1] or 'default') for b in pbranches]
|
|
pbranch = pbranches and pbranches[0][1] or 'default'
|
|
|
|
branchpath = os.path.join(self.path, branch)
|
|
if setbranch:
|
|
self.after()
|
|
try:
|
|
self.repo = hg.repository(self.ui, branchpath)
|
|
except:
|
|
self.repo = hg.repository(self.ui, branchpath, create=True)
|
|
self.before()
|
|
|
|
# pbranches may bring revisions from other branches (merge parents)
|
|
# Make sure we have them, or pull them.
|
|
missings = {}
|
|
for b in pbranches:
|
|
try:
|
|
self.repo.lookup(b[0])
|
|
except:
|
|
missings.setdefault(b[1], []).append(b[0])
|
|
|
|
if missings:
|
|
self.after()
|
|
for pbranch, heads in missings.iteritems():
|
|
pbranchpath = os.path.join(self.path, pbranch)
|
|
prepo = hg.repository(self.ui, pbranchpath)
|
|
self.ui.note(_('pulling from %s into %s\n') % (pbranch, branch))
|
|
self.repo.pull(prepo, [prepo.lookup(h) for h in heads])
|
|
self.before()
|
|
|
|
def _rewritetags(self, source, revmap, data):
|
|
fp = cStringIO.StringIO()
|
|
for line in data.splitlines():
|
|
s = line.split(' ', 1)
|
|
if len(s) != 2:
|
|
continue
|
|
revid = revmap.get(source.lookuprev(s[0]))
|
|
if not revid:
|
|
continue
|
|
fp.write('%s %s\n' % (revid, s[1]))
|
|
return fp.getvalue()
|
|
|
|
def putcommit(self, files, copies, parents, commit, source, revmap):
|
|
|
|
files = dict(files)
|
|
def getfilectx(repo, memctx, f):
|
|
v = files[f]
|
|
data = source.getfile(f, v)
|
|
e = source.getmode(f, v)
|
|
if f == '.hgtags':
|
|
data = self._rewritetags(source, revmap, data)
|
|
return context.memfilectx(f, data, 'l' in e, 'x' in e, copies.get(f))
|
|
|
|
pl = []
|
|
for p in parents:
|
|
if p not in pl:
|
|
pl.append(p)
|
|
parents = pl
|
|
nparents = len(parents)
|
|
if self.filemapmode and nparents == 1:
|
|
m1node = self.repo.changelog.read(bin(parents[0]))[0]
|
|
parent = parents[0]
|
|
|
|
if len(parents) < 2: parents.append(nullid)
|
|
if len(parents) < 2: parents.append(nullid)
|
|
p2 = parents.pop(0)
|
|
|
|
text = commit.desc
|
|
extra = commit.extra.copy()
|
|
if self.branchnames and commit.branch:
|
|
extra['branch'] = commit.branch
|
|
if commit.rev:
|
|
extra['convert_revision'] = commit.rev
|
|
|
|
while parents:
|
|
p1 = p2
|
|
p2 = parents.pop(0)
|
|
ctx = context.memctx(self.repo, (p1, p2), text, files.keys(), getfilectx,
|
|
commit.author, commit.date, extra)
|
|
self.repo.commitctx(ctx)
|
|
text = "(octopus merge fixup)\n"
|
|
p2 = hex(self.repo.changelog.tip())
|
|
|
|
if self.filemapmode and nparents == 1:
|
|
man = self.repo.manifest
|
|
mnode = self.repo.changelog.read(bin(p2))[0]
|
|
if not man.cmp(m1node, man.revision(mnode)):
|
|
self.ui.status(_("filtering out empty revision\n"))
|
|
self.repo.rollback()
|
|
return parent
|
|
return p2
|
|
|
|
def puttags(self, tags):
|
|
try:
|
|
parentctx = self.repo[self.tagsbranch]
|
|
tagparent = parentctx.node()
|
|
except error.RepoError:
|
|
parentctx = None
|
|
tagparent = nullid
|
|
|
|
try:
|
|
oldlines = sorted(parentctx['.hgtags'].data().splitlines(True))
|
|
except:
|
|
oldlines = []
|
|
|
|
newlines = sorted([("%s %s\n" % (tags[tag], tag)) for tag in tags])
|
|
if newlines == oldlines:
|
|
return None
|
|
data = "".join(newlines)
|
|
def getfilectx(repo, memctx, f):
|
|
return context.memfilectx(f, data, False, False, None)
|
|
|
|
self.ui.status(_("updating tags\n"))
|
|
date = "%s 0" % int(time.mktime(time.gmtime()))
|
|
extra = {'branch': self.tagsbranch}
|
|
ctx = context.memctx(self.repo, (tagparent, None), "update tags",
|
|
[".hgtags"], getfilectx, "convert-repo", date,
|
|
extra)
|
|
self.repo.commitctx(ctx)
|
|
return hex(self.repo.changelog.tip())
|
|
|
|
def setfilemapmode(self, active):
|
|
self.filemapmode = active
|
|
|
|
class mercurial_source(converter_source):
|
|
def __init__(self, ui, path, rev=None):
|
|
converter_source.__init__(self, ui, path, rev)
|
|
self.ignoreerrors = ui.configbool('convert', 'hg.ignoreerrors', False)
|
|
self.ignored = set()
|
|
self.saverev = ui.configbool('convert', 'hg.saverev', False)
|
|
try:
|
|
self.repo = hg.repository(self.ui, path)
|
|
# try to provoke an exception if this isn't really a hg
|
|
# repo, but some other bogus compatible-looking url
|
|
if not self.repo.local():
|
|
raise error.RepoError()
|
|
except error.RepoError:
|
|
ui.traceback()
|
|
raise NoRepo("%s is not a local Mercurial repo" % path)
|
|
self.lastrev = None
|
|
self.lastctx = None
|
|
self._changescache = None
|
|
self.convertfp = None
|
|
# Restrict converted revisions to startrev descendants
|
|
startnode = ui.config('convert', 'hg.startrev')
|
|
if startnode is not None:
|
|
try:
|
|
startnode = self.repo.lookup(startnode)
|
|
except error.RepoError:
|
|
raise util.Abort(_('%s is not a valid start revision')
|
|
% startnode)
|
|
startrev = self.repo.changelog.rev(startnode)
|
|
children = {startnode: 1}
|
|
for rev in self.repo.changelog.descendants(startrev):
|
|
children[self.repo.changelog.node(rev)] = 1
|
|
self.keep = children.__contains__
|
|
else:
|
|
self.keep = util.always
|
|
|
|
def changectx(self, rev):
|
|
if self.lastrev != rev:
|
|
self.lastctx = self.repo[rev]
|
|
self.lastrev = rev
|
|
return self.lastctx
|
|
|
|
def parents(self, ctx):
|
|
return [p.node() for p in ctx.parents()
|
|
if p and self.keep(p.node())]
|
|
|
|
def getheads(self):
|
|
if self.rev:
|
|
heads = [self.repo[self.rev].node()]
|
|
else:
|
|
heads = self.repo.heads()
|
|
return [hex(h) for h in heads if self.keep(h)]
|
|
|
|
def getfile(self, name, rev):
|
|
try:
|
|
return self.changectx(rev)[name].data()
|
|
except error.LookupError, err:
|
|
raise IOError(err)
|
|
|
|
def getmode(self, name, rev):
|
|
return self.changectx(rev).manifest().flags(name)
|
|
|
|
def getchanges(self, rev):
|
|
ctx = self.changectx(rev)
|
|
parents = self.parents(ctx)
|
|
if not parents:
|
|
files = sorted(ctx.manifest())
|
|
if self.ignoreerrors:
|
|
# calling getcopies() is a simple way to detect missing
|
|
# revlogs and populate self.ignored
|
|
self.getcopies(ctx, files)
|
|
return [(f, rev) for f in files if f not in self.ignored], {}
|
|
if self._changescache and self._changescache[0] == rev:
|
|
m, a, r = self._changescache[1]
|
|
else:
|
|
m, a, r = self.repo.status(parents[0], ctx.node())[:3]
|
|
# getcopies() detects missing revlogs early, run it before
|
|
# filtering the changes.
|
|
copies = self.getcopies(ctx, m + a)
|
|
changes = [(name, rev) for name in m + a + r
|
|
if name not in self.ignored]
|
|
return sorted(changes), copies
|
|
|
|
def getcopies(self, ctx, files):
|
|
copies = {}
|
|
for name in files:
|
|
if name in self.ignored:
|
|
continue
|
|
try:
|
|
copysource, copynode = ctx.filectx(name).renamed()
|
|
if copysource in self.ignored or not self.keep(copynode):
|
|
continue
|
|
copies[name] = copysource
|
|
except TypeError:
|
|
pass
|
|
except error.LookupError, e:
|
|
if not self.ignoreerrors:
|
|
raise
|
|
self.ignored.add(name)
|
|
self.ui.warn(_('ignoring: %s\n') % e)
|
|
return copies
|
|
|
|
def getcommit(self, rev):
|
|
ctx = self.changectx(rev)
|
|
parents = [hex(p) for p in self.parents(ctx)]
|
|
if self.saverev:
|
|
crev = rev
|
|
else:
|
|
crev = None
|
|
return commit(author=ctx.user(), date=util.datestr(ctx.date()),
|
|
desc=ctx.description(), rev=crev, parents=parents,
|
|
branch=ctx.branch(), extra=ctx.extra(),
|
|
sortkey=ctx.rev())
|
|
|
|
def gettags(self):
|
|
tags = [t for t in self.repo.tagslist() if t[0] != 'tip']
|
|
return dict([(name, hex(node)) for name, node in tags
|
|
if self.keep(node)])
|
|
|
|
def getchangedfiles(self, rev, i):
|
|
ctx = self.changectx(rev)
|
|
parents = self.parents(ctx)
|
|
if not parents and i is None:
|
|
i = 0
|
|
changes = [], ctx.manifest().keys(), []
|
|
else:
|
|
i = i or 0
|
|
changes = self.repo.status(parents[i], ctx.node())[:3]
|
|
changes = [[f for f in l if f not in self.ignored] for l in changes]
|
|
|
|
if i == 0:
|
|
self._changescache = (rev, changes)
|
|
|
|
return changes[0] + changes[1] + changes[2]
|
|
|
|
def converted(self, rev, destrev):
|
|
if self.convertfp is None:
|
|
self.convertfp = open(os.path.join(self.path, '.hg', 'shamap'),
|
|
'a')
|
|
self.convertfp.write('%s %s\n' % (destrev, rev))
|
|
self.convertfp.flush()
|
|
|
|
def before(self):
|
|
self.ui.debug(_('run hg source pre-conversion action\n'))
|
|
|
|
def after(self):
|
|
self.ui.debug(_('run hg source post-conversion action\n'))
|
|
|
|
def hasnativeorder(self):
|
|
return True
|
|
|
|
def lookuprev(self, rev):
|
|
try:
|
|
return hex(self.repo.lookup(rev))
|
|
except error.RepoError:
|
|
return None
|