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# Copyright (C) 2006 Canonical Ltd
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# Authors: Robert Collins <robert.collins@canonical.com>
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# Jelmer Vernooij <jelmer@samba.org>
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# John Carr <john.carr@unrouted.co.uk>
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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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"""A GIT branch and repository format implementation for bzr."""
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from bzrlib import bzrdir
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from bzrlib.foreign import foreign_vcs_registry
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from bzrlib.lockable_files import TransportLock
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from bzrlib.transport import register_lazy_transport
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from bzrlib.commands import Command, register_command
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from bzrlib.option import Option
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from bzrlib.trace import warning
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MINIMUM_DULWICH_VERSION = (0, 1, 0)
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COMPATIBLE_BZR_VERSIONS = [(1, 12, 0)]
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_versions_checked = False
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def lazy_check_versions():
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global _versions_checked
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_versions_checked = True
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from dulwich import __version__ as dulwich_version
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warning("Please install dulwich, https://launchpad.net/dulwich")
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if dulwich_version < MINIMUM_DULWICH_VERSION:
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warning("Dulwich is too old; at least %d.%d.%d is required" % MINIMUM_DULWICH_VERSION)
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bzrlib.api.require_any_api(bzrlib, COMPATIBLE_BZR_VERSIONS)
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bzrdir.format_registry.register_lazy('git',
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"bzrlib.plugins.git.dir", "LocalGitBzrDirFormat",
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help='GIT repository.', native=False, experimental=True,
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class GitBzrDirFormat(bzrdir.BzrDirFormat):
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_lock_class = TransportLock
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def is_supported(self):
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class LocalGitBzrDirFormat(GitBzrDirFormat):
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"""The .git directory control format."""
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def _known_formats(self):
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return set([LocalGitBzrDirFormat()])
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def open(self, transport, _found=None):
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"""Open this directory.
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# we dont grok readonly - git isn't integrated with transport.
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if url.startswith('readonly+'):
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url = url[len('readonly+'):]
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gitrepo = git.repo.Repo(transport.local_abspath("."))
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except errors.bzr_errors.NotLocalUrl:
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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from bzrlib.plugins.git.dir import LocalGitDir, GitLockableFiles, GitLock
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lockfiles = GitLockableFiles(transport, GitLock())
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return LocalGitDir(transport, lockfiles, gitrepo, self)
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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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from bzrlib.transport.local import LocalTransport
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if not isinstance(transport, LocalTransport):
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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# This should quickly filter out most things that are not
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# git repositories, saving us the trouble from loading dulwich.
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if not transport.has(".git") and not transport.has("objects"):
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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import dulwich as git
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format.open(transport)
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except git.errors.NotGitRepository, e:
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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def get_format_description(self):
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return "Local Git Repository"
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def get_format_string(self):
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return "Local Git Repository"
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def initialize_on_transport(self, transport):
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from bzrlib.transport.local import LocalTransport
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if not isinstance(transport, LocalTransport):
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raise NotImplementedError(self.initialize,
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"Can't create Git Repositories/branches on "
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"non-local transports")
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from dulwich.repo import Repo
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Repo.create(transport.local_abspath("."))
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return self.open(transport)
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def is_supported(self):
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class RemoteGitBzrDirFormat(GitBzrDirFormat):
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"""The .git directory control format."""
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def _known_formats(self):
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return set([RemoteGitBzrDirFormat()])
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def open(self, transport, _found=None):
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"""Open this directory.
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from bzrlib.plugins.git.remote import RemoteGitDir, GitSmartTransport
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if not isinstance(transport, GitSmartTransport):
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raise errors.bzr_errors.NotBranchError(transport.base)
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# we dont grok readonly - git isn't integrated with transport.
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if url.startswith('readonly+'):
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url = url[len('readonly+'):]
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from bzrlib.plugins.git.dir import GitLockableFiles, GitLock
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lockfiles = GitLockableFiles(transport, GitLock())
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return RemoteGitDir(transport, lockfiles, self)
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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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from bzrlib.plugins.git.remote import GitSmartTransport
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if not isinstance(transport, GitSmartTransport):
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raise errors.bzr_errors.NotBranchError(transport.base)
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# The only way to know a path exists and contains a valid repository
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# is to do a request against it:
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transport.fetch_pack(lambda x: [], None, lambda x: None,
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lambda x: mutter("git: %s" % x))
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except errors.git_errors.GitProtocolError:
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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raise errors.bzr_errors.NotBranchError(path=transport.base)
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def get_format_description(self):
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return "Remote Git Repository"
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def get_format_string(self):
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return "Remote Git Repository"
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def initialize_on_transport(self, transport):
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raise errors.bzr_errors.UninitializableFormat(self)
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bzrdir.BzrDirFormat.register_control_format(LocalGitBzrDirFormat)
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bzrdir.BzrDirFormat.register_control_format(RemoteGitBzrDirFormat)
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register_lazy_transport("git://", 'bzrlib.plugins.git.remote',
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foreign_vcs_registry.register_lazy("git",
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"bzrlib.plugins.git.mapping",
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"Stupid content tracker")
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class cmd_git_serve(Command):
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"""Provide access to a Bazaar branch using the git protocol.
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This command is experimental and doesn't do much yet.
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help='serve contents of directory',
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def run(self, directory=None):
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lazy_check_versions()
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from dulwich.server import TCPGitServer
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from bzrlib.plugins.git.server import BzrBackend
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from bzrlib.trace import warning
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warning("server support in bzr-git is experimental.")
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if directory is None:
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directory = os.getcwd()
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backend = BzrBackend(directory)
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server = TCPGitServer(backend, 'localhost')
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server.serve_forever()
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register_command(cmd_git_serve)
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class cmd_git_import(Command):
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"""Import all branches from a git repository.
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takes_args = ["src_location", "dest_location"]
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def run(self, src_location, dest_location):
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from bzrlib.bzrdir import BzrDir, format_registry
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from bzrlib.errors import NoRepositoryPresent, NotBranchError
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from bzrlib.repository import Repository
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source_repo = Repository.open(src_location)
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format = format_registry.make_bzrdir('rich-root-pack')
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target_bzrdir = BzrDir.open(dest_location)
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except NotBranchError:
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target_bzrdir = BzrDir.create(dest_location, format=format)
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target_repo = target_bzrdir.open_repository()
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except NoRepositoryPresent:
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target_repo = target_bzrdir.create_repository(shared=True)
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target_repo.fetch(source_repo)
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for name, ref in source_repo._git.heads().iteritems():
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head_loc = os.path.join(dest_location, name)
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head_bzrdir = BzrDir.open(head_loc)
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except NotBranchError:
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head_bzrdir = BzrDir.create(head_loc, format=format)
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head_branch = head_bzrdir.open_branch()
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except NotBranchError:
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head_branch = head_bzrdir.create_branch()
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head_branch.generate_revision_history(source_repo.get_mapping().revision_id_foreign_to_bzr(ref))
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register_command(cmd_git_import)
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from bzrlib.plugins.git import tests
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return tests.test_suite()
added
removed
__init__.py
