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remote.py
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# Copyright (C) 2007-2009 Jelmer Vernooij <jelmer@samba.org>
 
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# Copyright (C) 2007-2010 Jelmer Vernooij <jelmer@samba.org>
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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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# 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 (
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    config,
 
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    debug,
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    tag,
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    trace,
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    ui,
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    NoSuchRevision,
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    NotLocalUrl,
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    )
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from bzrlib.trace import (
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    info,
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    )
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from bzrlib.transport import (
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    Transport,
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    )
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from bzrlib.plugins.git.branch import (
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    GitBranch,
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    extract_tags,
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    )
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from bzrlib.plugins.git.errors import (
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    GitSmartRemoteNotSupported,
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from bzrlib.plugins.git.repository import (
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    GitRepository,
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    )
 
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from bzrlib.plugins.git.refs import (
 
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    extract_tags,
 
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    branch_name_to_ref,
 
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    )
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import dulwich as git
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from dulwich.errors import (
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    )
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from dulwich.pack import (
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    Pack,
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    PackData,
 
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    ThinPackData,
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    )
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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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urlparse.uses_netloc.extend(['git', 'git+ssh'])
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from dulwich.pack import load_pack_index
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    return []
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def split_git_url(url):
 
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    """Split a Git URL.
 
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    :param url: Git URL
 
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    :return: Tuple with host, port, username, path.
 
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    """
 
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    (scheme, netloc, loc, _, _) = urlparse.urlsplit(url)
 
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    path = urllib.unquote(loc)
 
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    if path.startswith("/~"):
 
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        path = path[1:]
 
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    (username, hostport) = urllib.splituser(netloc)
 
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    (host, port) = urllib.splitnport(hostport, None)
 
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    return (host, port, username, path)
 
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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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        hostport, escaped_path = urllib.splithost(loc)
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        self._path = urllib.unquote(escaped_path)
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        (self._username, hostport) = urllib.splituser(hostport)
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        (self._host, self._port) = urllib.splitnport(hostport, None)
 
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        (self._host, self._port, self._username, self._path) = \
 
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            split_git_url(url)
 
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        if 'transport' in debug.debug_flags:
 
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            trace.mutter('host: %r, user: %r, port: %r, path: %r',
 
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                         self._host, self._username, self._port, self._path)
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        self._client = _client
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    def external_url(self):
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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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                trace.info("git: %s" % text)
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        client = self._get_client(thin_packs=False)
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        try:
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            return client.fetch_pack(self._get_path(), determine_wants,
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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, thin_packs=thin_packs,
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            report_activity=self._report_activity)
 
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        return git.client.TCPGitClient(self._host, self._port,
 
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            thin_packs=thin_packs, report_activity=self._report_activity)
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class SSHGitSmartTransport(GitSmartTransport):
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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.SSHGitClient(self._host, self._port, self._username,
 
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        location_config = config.LocationConfig(self.base)
 
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        client = git.client.SSHGitClient(self._host, self._port, self._username,
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            thin_packs=thin_packs, report_activity=self._report_activity)
 
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        # Set up alternate pack program paths
 
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        upload_pack = location_config.get_user_option('git_upload_pack')
 
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        if upload_pack:
 
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            client.alternative_paths["upload-pack"] = upload_pack
 
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        receive_pack = location_config.get_user_option('git_receive_pack')
 
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        if receive_pack:
 
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            client.alternative_paths["receive-pack"] = receive_pack
 
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        return client
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class RemoteGitDir(GitDir):
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        self._lockfiles = lockfiles
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        self._mode_check_done = None
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    def _branch_name_to_ref(self, name, default=None):
 
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        return branch_name_to_ref(name, default=default)
 
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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, ignore_fallbacks=False):
 
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    def _open_branch(self, name=None, ignore_fallbacks=False, 
 
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                    unsupported=False):
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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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        refname = self._branch_name_to_ref(name)
 
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        return RemoteGitBranch(self, repo, refname, self._lockfiles)
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    def open_workingtree(self, recommend_upgrade=False):
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        raise NotLocalUrl(self.transport.base)
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    @property
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    def data(self):
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        if self._data is None:
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            self._data = PackData(self._data_path)
 
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            self._data = ThinPackData(self.resolve_ext_ref, self._data_path)
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        return self._data
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    @property
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                try:
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                    def report_progress(cur, total):
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                        pb.update("generating index", cur, total)
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                    self.data.create_index(self._idx_path, self.resolve_ext_ref,
 
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                    self.data.create_index(self._idx_path, 
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                        progress=report_progress)
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                finally:
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                    pb.finished()
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        except InvalidRevisionId:
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            raise NoSuchRevision(self, bzr_revid)
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    def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
 
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        """Lookup a revision id.
 
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        """
 
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        if mapping is None:
 
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            mapping = self.get_mapping()
 
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        # Not really an easy way to parse foreign revids here..
 
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        return mapping.revision_id_foreign_to_bzr(foreign_revid)
 
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class RemoteGitTagDict(tag.BasicTags):
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class RemoteGitBranch(GitBranch):
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    def __init__(self, bzrdir, repository, name, lockfiles):
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        self._ref = None
 
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        self._sha = None
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        super(RemoteGitBranch, self).__init__(bzrdir, repository, name,
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                lockfiles)
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        raise GitSmartRemoteNotSupported()
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    def last_revision(self):
315
 
        return self.mapping.revision_id_foreign_to_bzr(self.head)
 
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        return self.lookup_foreign_revision_id(self.head)
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    def _get_config(self):
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        class EmptyConfig(object):
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    @property
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    def head(self):
327
 
        if self._ref is not None:
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            return self._ref
 
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        if self._sha is not None:
 
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            return self._sha
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        heads = self.repository.get_refs()
330
 
        if not self.name in heads:
 
368
        name = self.bzrdir._branch_name_to_ref(self.name, "HEAD")
 
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        if name in heads:
 
370
            self._sha = heads[name]
 
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        else:
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            raise NoSuchRef(self.name)
332
 
        self._ref = heads[self.name]
333
 
        return self._ref
 
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        return self._sha
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    def _synchronize_history(self, destination, revision_id):
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        """See Branch._synchronize_history()."""