bzr branch
http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar
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0.200.18
by John Arbash Meinel
Start splitting up the Git{Branch,Dir,Repository} into separate modules, etc. |
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# Copyright (C) 2007 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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"""An adapter between a Git control dir and a Bazaar BzrDir"""
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from bzrlib import ( |
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bzrdir, |
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errors, |
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lockable_files, |
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urlutils, |
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)
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from bzrlib.plugins.git.gitlib import ( |
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git_branch, |
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git_repository, |
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)
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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): |
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pass
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def lock_read(self): |
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pass
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def unlock(self): |
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pass
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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, lock): |
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self._lock = lock |
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self._transaction = None |
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self._lock_mode = None |
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self._lock_count = 0 |
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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 __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.clone('.git') |
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self._lockfiles = lockfiles |
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def get_branch_transport(self, branch_format): |
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if branch_format is None: |
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return self.transport |
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if isinstance(branch_format, GitBzrDirFormat): |
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return self.transport |
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raise errors.IncompatibleFormat(branch_format, self._format) |
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get_repository_transport = get_branch_transport |
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get_workingtree_transport = get_branch_transport |
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def is_supported(self): |
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return True |
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def open_branch(self, ignored=None): |
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"""'crate' a branch for this dir.""" |
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return git_branch.GitBranch(self, self._lockfiles) |
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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 git_repository.GitRepository(self, self._lockfiles) |
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def open_workingtree(self): |
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loc = urlutils.unescape_for_display(self.root_transport.base, 'ascii') |
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raise errors.NoWorkingTree(loc) |
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class GitBzrDirFormat(bzrdir.BzrDirFormat): |
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"""The .git directory control format.""" |
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@classmethod
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def _known_formats(self): |
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return set([GitBzrDirFormat()]) |
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def open(self, transport, _create=False, _found=None): |
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"""Open this directory. |
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:param _create: create the git dir on the fly. private to GitDirFormat.
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"""
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# we dont grok readonly - git isn't integrated with transport.
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url = transport.base |
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if url.startswith('readonly+'): |
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url = url[len('readonly+'):] |
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path = urlutils.local_path_from_url(url) |
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if not transport.has('.git'): |
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raise errors.NotBranchError(path=transport.base) |
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lockfiles = GitLockableFiles(GitLock()) |
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return GitDir(transport, lockfiles, self) |
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@classmethod
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def probe_transport(klass, transport): |
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"""Our format is present if the transport ends in '.not/'.""" |
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# little ugly, but works
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format = klass() |
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# delegate to the main opening code. This pays a double rtt cost at the
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# moment, so perhaps we want probe_transport to return the opened thing
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# rather than an openener ? or we could return a curried thing with the
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# dir to open already instantiated ? Needs more thought.
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try: |
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format.open(transport) |
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return format |
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except Exception, e: |
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raise errors.NotBranchError(path=transport.base) |
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raise errors.NotBranchError(path=transport.base) |
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bzrdir.BzrDirFormat.register_control_format(GitBzrDirFormat) |