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# Copyright (C) 2007 Canonical Ltd
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# Copyright (C) 2010 Jelmer Vernooij
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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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# 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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# 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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"""An adapter between a Git control dir and a Bazaar BzrDir."""
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version_info as bzrlib_version,
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LockWarner = getattr(lockable_files, "_LockWarner", None)
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from bzrlib.plugins.git import (
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class GitLock(object):
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"""A lock that thunks through to Git."""
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def lock_write(self, token=None):
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def validate_token(self, token):
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class GitLockableFiles(lockable_files.LockableFiles):
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"""Git specific lockable files abstraction."""
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def __init__(self, transport, lock):
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self._transaction = None
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self._lock_mode = None
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self._transport = transport
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if LockWarner is None:
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self._lock_warner = LockWarner(repr(self))
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class GitDir(bzrdir.BzrDir):
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"""An adapter to the '.git' dir used by git."""
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def is_supported(self):
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def cloning_metadir(self, stacked=False):
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return get_rich_root_format(stacked)
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def _branch_name_to_ref(self, name):
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raise NotImplementedError(self._branch_name_to_ref)
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if bzrlib_version >= (2, 2):
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def open_branch(self, name=None, ignore_fallbacks=None,
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return self._open_branch(name=name,
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ignore_fallbacks=ignore_fallbacks, unsupported=unsupported)
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def open_branch(self, ignore_fallbacks=None, unsupported=False):
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return self._open_branch(name=None,
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ignore_fallbacks=ignore_fallbacks, unsupported=unsupported)
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class LocalGitDir(GitDir):
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"""An adapter to the '.git' dir used by git."""
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def _get_gitrepository_class(self):
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from bzrlib.plugins.git.repository import LocalGitRepository
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return LocalGitRepository
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_gitrepository_class = property(_get_gitrepository_class)
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def __init__(self, transport, lockfiles, gitrepo, 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.transport = transport.clone('.git')
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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):
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from bzrlib.plugins.git.refs import branch_name_to_ref
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ref = branch_name_to_ref(name, None)
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from dulwich.repo import SYMREF
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refcontents = self._git.refs.read_ref(ref)
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if refcontents.startswith(SYMREF):
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ref = refcontents[len(SYMREF):]
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def is_control_filename(self, filename):
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return filename == '.git' or filename.startswith('.git/')
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def get_branch_transport(self, branch_format, name):
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if branch_format is None:
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return self.transport
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if isinstance(branch_format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(branch_format, self._format)
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def get_repository_transport(self, format):
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return self.transport
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if isinstance(format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(format, self._format)
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def get_workingtree_transport(self, format):
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return self.transport
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if isinstance(format, LocalGitBzrDirFormat):
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return self.transport
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raise bzr_errors.IncompatibleFormat(format, self._format)
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def _open_branch(self, name=None, ignore_fallbacks=None, unsupported=False):
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"""'create' a branch for this dir."""
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repo = self.open_repository()
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from bzrlib.plugins.git.branch import LocalGitBranch
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return LocalGitBranch(self, repo, self._branch_name_to_ref(name),
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def destroy_branch(self, name=None):
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del self._git.refs[self._branch_name_to_ref(name)]
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def list_branches(self):
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for name in self._git.get_refs():
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if name.startswith("refs/heads/"):
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ret.append(self.open_branch(name=name))
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def open_repository(self, shared=False):
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"""'open' a repository for this dir."""
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return self._gitrepository_class(self, self._lockfiles)
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def open_workingtree(self, recommend_upgrade=True):
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if not self._git.bare:
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from dulwich.errors import NoIndexPresent
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repo = self.open_repository()
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index = repo._git.open_index()
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except NoIndexPresent:
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from bzrlib.plugins.git.workingtree import GitWorkingTree
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branch = self.open_branch()
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except bzr_errors.NotBranchError:
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return GitWorkingTree(self, repo, branch, index)
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loc = urlutils.unescape_for_display(self.root_transport.base, 'ascii')
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raise bzr_errors.NoWorkingTree(loc)
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def create_repository(self, shared=False):
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return self.open_repository()
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def create_branch(self, name=None):
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refname = self._branch_name_to_ref(name)
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from dulwich.protocol import ZERO_SHA
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self._git.refs[refname or "HEAD"] = ZERO_SHA
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return self.open_branch(name)
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def backup_bzrdir(self):
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self.root_transport.copy_tree(".git", ".git.backup")
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return (self.root_transport.abspath(".git"),
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self.root_transport.abspath(".git.backup"))
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raise bzr_errors.BzrError("Unable to backup bare repositories")
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def create_workingtree(self, revision_id=None, from_branch=None,
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accelerator_tree=None, hardlink=False):
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raise bzr_errors.BzrError("Can't create working tree in a bare repo")
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from dulwich.index import write_index
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from dulwich.pack import SHA1Writer
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f = open(self.transport.local_abspath("index"), 'w+')
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return self.open_workingtree()
added
removed
dir.py
