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  • Committer: Robert Collins
  • Date: 2010-05-06 07:48:22 UTC
  • mto: This revision was merged to the branch mainline in revision 5223.
  • Revision ID: robertc@robertcollins.net-20100506074822-0bsgf2j4h8jx0xkk
Added ``bzrlib.tests.matchers`` as a place to put matchers, along with
our first in-tree matcher. See the module docstring for details.
(Robert Collins)

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remote.py
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# Copyright (C) 2007-2008 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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import bzrlib
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from bzrlib import urlutils
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from bzrlib.bzrdir import BzrDir, BzrDirFormat
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from bzrlib.errors import NoSuchFile, NotLocalUrl
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from bzrlib.lockable_files import TransportLock
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from bzrlib.repository import Repository
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from bzrlib.trace import info
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from bzrlib.transport import Transport
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from bzrlib.plugins.git import git
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from bzrlib.plugins.git.branch import GitBranch
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from bzrlib.plugins.git.errors import NoSuchRef
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from bzrlib.plugins.git.dir import GitDir
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from bzrlib.plugins.git.foreign import ForeignBranch
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from bzrlib.plugins.git.repository import GitFormat, GitRepository
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import os
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import tempfile
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import urllib
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import urlparse
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from dulwich.pack import PackData, Pack
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class GitSmartTransport(Transport):
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    def __init__(self, url, _client=None):
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        Transport.__init__(self, url)
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        (scheme, _, loc, _, _) = urlparse.urlsplit(url)
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        assert scheme == "git"
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        hostport, self._path = urllib.splithost(loc)
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        (self._host, self._port) = urllib.splitnport(hostport, git.protocol.TCP_GIT_PORT)
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        self._client = _client
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    def _get_client(self):
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        if self._client is not None:
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            ret = self._client
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            self._client = None
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            return ret
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        return git.client.TCPGitClient(self._host, self._port)
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    def fetch_pack(self, determine_wants, graph_walker, pack_data, progress=None):
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        if progress is None:
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            def progress(text):
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                info("git: %s" % text)
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        self._get_client().fetch_pack(self._path, determine_wants, 
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            graph_walker, pack_data, progress)
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    def get(self, path):
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        raise NoSuchFile(path)
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    def abspath(self, relpath):
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        return urlutils.join(self.base, relpath)
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    def clone(self, offset=None):
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        """See Transport.clone()."""
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        if offset is None:
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            newurl = self.base
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        else:
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            newurl = urlutils.join(self.base, offset)
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        return GitSmartTransport(newurl, self._client)
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class RemoteGitDir(GitDir):
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    def __init__(self, transport, lockfiles, format):
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        self._format = format
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        self.root_transport = transport
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        self.transport = transport
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        self._lockfiles = lockfiles
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    def open_repository(self):
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        return RemoteGitRepository(self, self._lockfiles)
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    def open_branch(self):
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        repo = self.open_repository()
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        # TODO: Support for multiple branches in one bzrdir in bzrlib!
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        return RemoteGitBranch(self, repo, "HEAD", self._lockfiles)
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    def open_workingtree(self):
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        raise NotLocalUrl(self.transport.base)
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class RemoteGitRepository(GitRepository):
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    def __init__(self, gitdir, lockfiles):
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        GitRepository.__init__(self, gitdir, lockfiles)
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    def fetch_pack(self, determine_wants, graph_walker, pack_data, 
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                   progress=None):
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        self._transport.fetch_pack(determine_wants, graph_walker, pack_data, 
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            progress)
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    def fetch_objects(self, determine_wants, graph_walker, progress=None):
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        fd, path = tempfile.mkstemp(suffix=".pack")
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        self.fetch_pack(determine_wants, graph_walker, lambda x: os.write(fd, x), progress)
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        os.close(fd)
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        try:
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            basename = path[:-len(".pack")]
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            p = PackData(path)
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            p.create_index_v2(basename+".idx")
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            for o in Pack(basename).iterobjects():
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                yield o
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        finally:
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            os.remove(path)
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class RemoteGitBranch(GitBranch):
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    def __init__(self, bzrdir, repository, name, lockfiles):
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        def determine_wants(heads):
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            if not name in heads:
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                raise NoSuchRef(name)
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            self._ref = heads[name]
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        bzrdir.root_transport.fetch_pack(determine_wants, None, lambda x: None, 
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                             lambda x: mutter("git: %s" % x))
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        super(RemoteGitBranch, self).__init__(bzrdir, repository, name, self._ref, lockfiles)
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    def last_revision(self):
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        return self.mapping.revision_id_foreign_to_bzr(self._ref)
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    def _synchronize_history(self, destination, revision_id):
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        """See Branch._synchronize_history()."""
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        destination.generate_revision_history(self.last_revision())
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