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# Copyright (C) 2007 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""An adapter between a Git Branch and a Bazaar Branch"""
from bzrlib import (
branch,
config,
revision,
)
from bzrlib.decorators import needs_read_lock
from bzrlib.plugins.git import ids
class GitBranchConfig(config.BranchConfig):
"""BranchConfig that uses locations.conf in place of branch.conf"""
def __init__(self, branch):
config.BranchConfig.__init__(self, branch)
# do not provide a BranchDataConfig
self.option_sources = self.option_sources[0], self.option_sources[2]
def set_user_option(self, name, value, local=False):
"""Force local to True"""
config.BranchConfig.set_user_option(self, name, value, local=True)
class GitBranchFormat(branch.BranchFormat):
def get_branch_description(self):
return 'Git Branch'
class GitBranch(branch.Branch):
"""An adapter to git repositories for bzr Branch objects."""
def __init__(self, gitdir, lockfiles):
super(GitBranch, self).__init__()
from bzrlib.plugins.git import git_repository
self.bzrdir = gitdir
self.control_files = lockfiles
self.repository = git_repository.GitRepository(gitdir, lockfiles)
self.base = gitdir.root_transport.base
if '.git' not in gitdir.root_transport.list_dir('.'):
raise errors.NotBranchError(self.base)
self._format = GitBranchFormat()
def lock_write(self):
self.control_files.lock_write()
@needs_read_lock
def last_revision(self):
# perhaps should escape this ?
head_git_id = self.repository._git.get_head()
if head_git_id is None:
return revision.NULL_REVISION
return ids.convert_revision_id_git_to_bzr(head_git_id)
@needs_read_lock
def revision_history(self):
node = self.last_revision()
if node == revision.NULL_REVISION:
return []
ancestors = self.repository.get_revision_graph(node)
history = []
while node is not None:
history.append(node)
if len(ancestors[node]) > 0:
node = ancestors[node][0]
else:
node = None
return list(reversed(history))
def get_config(self):
return GitBranchConfig(self)
def lock_read(self):
self.control_files.lock_read()
def unlock(self):
self.control_files.unlock()
def get_push_location(self):
"""See Branch.get_push_location."""
push_loc = self.get_config().get_user_option('push_location')
return push_loc
def set_push_location(self, location):
"""See Branch.set_push_location."""
self.get_config().set_user_option('push_location', location,
local=True)
def supports_tags(self):
return False
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