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# hg.py - hg backend for convert extension
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#
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# Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others
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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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# Notes for hg->hg conversion:
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#
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# * Old versions of Mercurial didn't trim the whitespace from the ends
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# of commit messages, but new versions do. Changesets created by
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# those older versions, then converted, may thus have different
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# hashes for changesets that are otherwise identical.
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#
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# * Using "--config convert.hg.saverev=true" will make the source
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# identifier to be stored in the converted revision. This will cause
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# the converted revision to have a different identity than the
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# source.
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import os, time, cStringIO
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from mercurial.i18n import _
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from mercurial.node import bin, hex, nullid
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from mercurial import hg, util, context, bookmarks, error, scmutil, exchange
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from common import NoRepo, commit, converter_source, converter_sink
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import re
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sha1re = re.compile(r'\b[0-9a-f]{12,40}\b')
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class mercurial_sink(converter_sink):
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def __init__(self, ui, path):
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converter_sink.__init__(self, ui, path)
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self.branchnames = ui.configbool('convert', 'hg.usebranchnames', True)
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self.clonebranches = ui.configbool('convert', 'hg.clonebranches', False)
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self.tagsbranch = ui.config('convert', 'hg.tagsbranch', 'default')
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self.lastbranch = None
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if os.path.isdir(path) and len(os.listdir(path)) > 0:
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try:
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self.repo = hg.repository(self.ui, path)
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if not self.repo.local():
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raise NoRepo(_('%s is not a local Mercurial repository')
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% path)
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except error.RepoError, err:
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ui.traceback()
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raise NoRepo(err.args[0])
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else:
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try:
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ui.status(_('initializing destination %s repository\n') % path)
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self.repo = hg.repository(self.ui, path, create=True)
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if not self.repo.local():
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raise NoRepo(_('%s is not a local Mercurial repository')
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% path)
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self.created.append(path)
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except error.RepoError:
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ui.traceback()
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raise NoRepo(_("could not create hg repository %s as sink")
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% path)
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self.lock = None
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self.wlock = None
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self.filemapmode = False
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def before(self):
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self.ui.debug('run hg sink pre-conversion action\n')
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self.wlock = self.repo.wlock()
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self.lock = self.repo.lock()
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def after(self):
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self.ui.debug('run hg sink post-conversion action\n')
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if self.lock:
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self.lock.release()
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if self.wlock:
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self.wlock.release()
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def revmapfile(self):
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return self.repo.join("shamap")
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def authorfile(self):
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return self.repo.join("authormap")
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def setbranch(self, branch, pbranches):
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if not self.clonebranches:
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return
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setbranch = (branch != self.lastbranch)
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self.lastbranch = branch
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if not branch:
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branch = 'default'
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pbranches = [(b[0], b[1] and b[1] or 'default') for b in pbranches]
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pbranch = pbranches and pbranches[0][1] or 'default'
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branchpath = os.path.join(self.path, branch)
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if setbranch:
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self.after()
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try:
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self.repo = hg.repository(self.ui, branchpath)
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except Exception:
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self.repo = hg.repository(self.ui, branchpath, create=True)
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self.before()
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# pbranches may bring revisions from other branches (merge parents)
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# Make sure we have them, or pull them.
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missings = {}
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for b in pbranches:
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try:
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self.repo.lookup(b[0])
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except Exception:
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missings.setdefault(b[1], []).append(b[0])
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if missings:
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self.after()
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for pbranch, heads in sorted(missings.iteritems()):
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pbranchpath = os.path.join(self.path, pbranch)
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prepo = hg.peer(self.ui, {}, pbranchpath)
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self.ui.note(_('pulling from %s into %s\n') % (pbranch, branch))
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exchange.pull(self.repo, prepo,
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[prepo.lookup(h) for h in heads])
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self.before()
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def _rewritetags(self, source, revmap, data):
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fp = cStringIO.StringIO()
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for line in data.splitlines():
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s = line.split(' ', 1)
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if len(s) != 2:
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continue
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revid = revmap.get(source.lookuprev(s[0]))
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if not revid:
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continue
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fp.write('%s %s\n' % (revid, s[1]))
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return fp.getvalue()
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def putcommit(self, files, copies, parents, commit, source, revmap, full):
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files = dict(files)
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def getfilectx(repo, memctx, f):
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try:
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v = files[f]
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except KeyError:
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return None
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data, mode = source.getfile(f, v)
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if data is None:
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return None
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if f == '.hgtags':
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data = self._rewritetags(source, revmap, data)
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return context.memfilectx(self.repo, f, data, 'l' in mode,
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'x' in mode, copies.get(f))
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pl = []
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for p in parents:
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if p not in pl:
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pl.append(p)
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parents = pl
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nparents = len(parents)
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if self.filemapmode and nparents == 1:
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m1node = self.repo.changelog.read(bin(parents[0]))[0]
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parent = parents[0]
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if len(parents) < 2:
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parents.append(nullid)
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if len(parents) < 2:
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parents.append(nullid)
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p2 = parents.pop(0)
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text = commit.desc
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sha1s = re.findall(sha1re, text)
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for sha1 in sha1s:
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oldrev = source.lookuprev(sha1)
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newrev = revmap.get(oldrev)
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if newrev is not None:
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text = text.replace(sha1, newrev[:len(sha1)])
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extra = commit.extra.copy()
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for label in ('source', 'transplant_source', 'rebase_source'):
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node = extra.get(label)
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if node is None:
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continue
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# Only transplant stores its reference in binary
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if label == 'transplant_source':
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node = hex(node)
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newrev = revmap.get(node)
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if newrev is not None:
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if label == 'transplant_source':
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newrev = bin(newrev)
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extra[label] = newrev
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if self.branchnames and commit.branch:
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extra['branch'] = commit.branch
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if commit.rev:
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extra['convert_revision'] = commit.rev
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while parents:
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p1 = p2
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p2 = parents.pop(0)
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fileset = set(files)
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if full:
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fileset.update(self.repo[p1])
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fileset.update(self.repo[p2])
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ctx = context.memctx(self.repo, (p1, p2), text, fileset,
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getfilectx, commit.author, commit.date, extra)
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self.repo.commitctx(ctx)
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text = "(octopus merge fixup)\n"
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p2 = hex(self.repo.changelog.tip())
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if self.filemapmode and nparents == 1:
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man = self.repo.manifest
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mnode = self.repo.changelog.read(bin(p2))[0]
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closed = 'close' in commit.extra
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if not closed and not man.cmp(m1node, man.revision(mnode)):
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self.ui.status(_("filtering out empty revision\n"))
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self.repo.rollback(force=True)
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return parent
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return p2
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def puttags(self, tags):
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try:
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parentctx = self.repo[self.tagsbranch]
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tagparent = parentctx.node()
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except error.RepoError:
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parentctx = None
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tagparent = nullid
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oldlines = set()
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for branch, heads in self.repo.branchmap().iteritems():
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for h in heads:
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if '.hgtags' in self.repo[h]:
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oldlines.update(
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set(self.repo[h]['.hgtags'].data().splitlines(True)))
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oldlines = sorted(list(oldlines))
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newlines = sorted([("%s %s\n" % (tags[tag], tag)) for tag in tags])
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if newlines == oldlines:
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return None, None
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# if the old and new tags match, then there is nothing to update
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oldtags = set()
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newtags = set()
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for line in oldlines:
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s = line.strip().split(' ', 1)
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if len(s) != 2:
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continue
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oldtags.add(s[1])
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for line in newlines:
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s = line.strip().split(' ', 1)
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if len(s) != 2:
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continue
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if s[1] not in oldtags:
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newtags.add(s[1].strip())
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if not newtags:
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return None, None
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data = "".join(newlines)
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def getfilectx(repo, memctx, f):
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return context.memfilectx(repo, f, data, False, False, None)
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self.ui.status(_("updating tags\n"))
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date = "%s 0" % int(time.mktime(time.gmtime()))
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extra = {'branch': self.tagsbranch}
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ctx = context.memctx(self.repo, (tagparent, None), "update tags",
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[".hgtags"], getfilectx, "convert-repo", date,
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extra)
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self.repo.commitctx(ctx)
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return hex(self.repo.changelog.tip()), hex(tagparent)
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def setfilemapmode(self, active):
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self.filemapmode = active
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def putbookmarks(self, updatedbookmark):
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if not len(updatedbookmark):
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return
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self.ui.status(_("updating bookmarks\n"))
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destmarks = self.repo._bookmarks
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for bookmark in updatedbookmark:
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destmarks[bookmark] = bin(updatedbookmark[bookmark])
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destmarks.write()
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def hascommitfrommap(self, rev):
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# the exact semantics of clonebranches is unclear so we can't say no
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return rev in self.repo or self.clonebranches
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def hascommitforsplicemap(self, rev):
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if rev not in self.repo and self.clonebranches:
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raise util.Abort(_('revision %s not found in destination '
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'repository (lookups with clonebranches=true '
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'are not implemented)') % rev)
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return rev in self.repo
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class mercurial_source(converter_source):
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def __init__(self, ui, path, rev=None):
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converter_source.__init__(self, ui, path, rev)
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self.ignoreerrors = ui.configbool('convert', 'hg.ignoreerrors', False)
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self.ignored = set()
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self.saverev = ui.configbool('convert', 'hg.saverev', False)
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try:
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self.repo = hg.repository(self.ui, path)
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# try to provoke an exception if this isn't really a hg
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# repo, but some other bogus compatible-looking url
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if not self.repo.local():
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raise error.RepoError
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except error.RepoError:
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ui.traceback()
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raise NoRepo(_("%s is not a local Mercurial repository") % path)
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self.lastrev = None
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self.lastctx = None
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self._changescache = None, None
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self.convertfp = None
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# Restrict converted revisions to startrev descendants
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startnode = ui.config('convert', 'hg.startrev')
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hgrevs = ui.config('convert', 'hg.revs')
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if hgrevs is None:
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if startnode is not None:
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try:
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startnode = self.repo.lookup(startnode)
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except error.RepoError:
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raise util.Abort(_('%s is not a valid start revision')
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% startnode)
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startrev = self.repo.changelog.rev(startnode)
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children = {startnode: 1}
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for r in self.repo.changelog.descendants([startrev]):
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children[self.repo.changelog.node(r)] = 1
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self.keep = children.__contains__
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else:
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self.keep = util.always
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if rev:
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self._heads = [self.repo[rev].node()]
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else:
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self._heads = self.repo.heads()
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else:
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if rev or startnode is not None:
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raise util.Abort(_('hg.revs cannot be combined with '
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'hg.startrev or --rev'))
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nodes = set()
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parents = set()
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for r in scmutil.revrange(self.repo, [hgrevs]):
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ctx = self.repo[r]
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nodes.add(ctx.node())
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parents.update(p.node() for p in ctx.parents())
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self.keep = nodes.__contains__
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self._heads = nodes - parents
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def changectx(self, rev):
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if self.lastrev != rev:
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self.lastctx = self.repo[rev]
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self.lastrev = rev
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return self.lastctx
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def parents(self, ctx):
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return [p for p in ctx.parents() if p and self.keep(p.node())]
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def getheads(self):
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return [hex(h) for h in self._heads if self.keep(h)]
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def getfile(self, name, rev):
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try:
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fctx = self.changectx(rev)[name]
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return fctx.data(), fctx.flags()
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except error.LookupError:
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return None, None
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def getchanges(self, rev, full):
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ctx = self.changectx(rev)
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parents = self.parents(ctx)
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if full or not parents:
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files = copyfiles = ctx.manifest()
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if parents:
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if self._changescache[0] == rev:
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m, a, r = self._changescache[1]
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else:
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m, a, r = self.repo.status(parents[0].node(), ctx.node())[:3]
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if not full:
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files = m + a + r
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copyfiles = m + a
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# getcopies() is also run for roots and before filtering so missing
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# revlogs are detected early
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copies = self.getcopies(ctx, parents, copyfiles)
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changes = [(f, rev) for f in files if f not in self.ignored]
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changes.sort()
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return changes, copies
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def getcopies(self, ctx, parents, files):
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copies = {}
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for name in files:
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if name in self.ignored:
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continue
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try:
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copysource, _copynode = ctx.filectx(name).renamed()
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if copysource in self.ignored:
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continue
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# Ignore copy sources not in parent revisions
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found = False
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for p in parents:
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if copysource in p:
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found = True
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break
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if not found:
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continue
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copies[name] = copysource
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except TypeError:
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pass
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except error.LookupError, e:
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if not self.ignoreerrors:
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raise
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self.ignored.add(name)
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self.ui.warn(_('ignoring: %s\n') % e)
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return copies
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def getcommit(self, rev):
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ctx = self.changectx(rev)
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parents = [p.hex() for p in self.parents(ctx)]
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if self.saverev:
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crev = rev
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else:
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crev = None
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return commit(author=ctx.user(),
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date=util.datestr(ctx.date(), '%Y-%m-%d %H:%M:%S %1%2'),
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desc=ctx.description(), rev=crev, parents=parents,
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branch=ctx.branch(), extra=ctx.extra(),
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sortkey=ctx.rev())
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def gettags(self):
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# This will get written to .hgtags, filter non global tags out.
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tags = [t for t in self.repo.tagslist()
|
|
|
if self.repo.tagtype(t[0]) == 'global']
|
|
|
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].node(), 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(self.repo.join('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 hasnativeclose(self):
|
|
|
return True
|
|
|
|
|
|
def lookuprev(self, rev):
|
|
|
try:
|
|
|
return hex(self.repo.lookup(rev))
|
|
|
except (error.RepoError, error.LookupError):
|
|
|
return None
|
|
|
|
|
|
def getbookmarks(self):
|
|
|
return bookmarks.listbookmarks(self.repo)
|
|
|
|
|
|
def checkrevformat(self, revstr, mapname='splicemap'):
|
|
|
""" Mercurial, revision string is a 40 byte hex """
|
|
|
self.checkhexformat(revstr, mapname)
|
|
|
|
