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# Copyright (C) 2006-2009 Canonical Ltd
# Authors: Robert Collins <robert.collins@canonical.com>
# Jelmer Vernooij <jelmer@samba.org>
# John Carr <john.carr@unrouted.co.uk>
#
# 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
"""Git-specific subcommands for Bazaar."""
from bzrlib.commands import (
Command,
display_command,
)
from bzrlib.option import (
Option,
)
class cmd_git_import(Command):
"""Import all branches from a git repository.
"""
takes_args = ["src_location", "dest_location?"]
def run(self, src_location, dest_location=None):
from collections import defaultdict
import os
from bzrlib import (
controldir,
trace,
ui,
)
from bzrlib.bzrdir import (
BzrDir,
)
from bzrlib.errors import (
BzrCommandError,
NoRepositoryPresent,
NotBranchError,
)
from bzrlib.repository import (
InterRepository,
Repository,
)
from bzrlib.transport import get_transport
from bzrlib.plugins.git.branch import (
GitBranch,
extract_tags,
)
from bzrlib.plugins.git.refs import ref_to_branch_name
from bzrlib.plugins.git.repository import GitRepository
dest_format = controldir.ControlDirFormat.get_default_format()
if dest_location is None:
dest_location = os.path.basename(src_location.rstrip("/\\"))
dest_transport = get_transport(dest_location)
source_repo = Repository.open(src_location)
if not isinstance(source_repo, GitRepository):
raise BzrCommandError("%r is not a git repository" % src_location)
try:
target_bzrdir = BzrDir.open_from_transport(dest_transport)
except NotBranchError:
target_bzrdir = dest_format.initialize_on_transport_ex(
dest_transport, shared_repo=True)[1]
try:
target_repo = target_bzrdir.find_repository()
except NoRepositoryPresent:
target_repo = target_bzrdir.create_repository(shared=True)
if not target_repo.supports_rich_root():
raise BzrCommandError("Target repository doesn't support rich roots")
interrepo = InterRepository.get(source_repo, target_repo)
mapping = source_repo.get_mapping()
refs = interrepo.fetch()
unpeeled_tags = defaultdict(set)
tags = {}
for k, (peeled, unpeeled) in extract_tags(refs).iteritems():
tags[k] = mapping.revision_id_foreign_to_bzr(peeled)
if unpeeled is not None:
unpeeled_tags[peeled].add(unpeeled)
# FIXME: Store unpeeled tag map
pb = ui.ui_factory.nested_progress_bar()
try:
for i, (name, ref) in enumerate(refs.iteritems()):
try:
ref_to_branch_name(name)
except ValueError:
# Not a branch, ignore
continue
pb.update("creating branches", i, len(refs))
head_transport = dest_transport.clone(name)
try:
head_bzrdir = BzrDir.open_from_transport(head_transport)
except NotBranchError:
head_bzrdir = dest_format.initialize_on_transport_ex(
head_transport, create_prefix=True)[1]
try:
head_branch = head_bzrdir.open_branch()
except NotBranchError:
head_branch = head_bzrdir.create_branch()
revid = mapping.revision_id_foreign_to_bzr(ref)
source_branch = GitBranch(source_repo.bzrdir, source_repo,
name, None, tags)
source_branch.head = ref
if head_branch.last_revision() != revid:
head_branch.generate_revision_history(revid)
source_branch.tags.merge_to(head_branch.tags)
finally:
pb.finished()
trace.note("Use 'bzr checkout' to create a working tree in "
"the newly created branches.")
class cmd_git_object(Command):
"""List or display Git objects by SHA.
Cat a particular object's Git representation if a SHA is specified.
List all available SHAs otherwise.
"""
hidden = True
aliases = ["git-objects", "git-cat"]
takes_args = ["sha1?"]
takes_options = [Option('directory',
short_name='d',
help='Location of repository.', type=unicode),
Option('pretty', help='Pretty-print objects.')]
encoding_type = 'exact'
@display_command
def run(self, sha1=None, directory=".", pretty=False):
from bzrlib.errors import (
BzrCommandError,
)
from bzrlib.bzrdir import (
BzrDir,
)
bzrdir, _ = BzrDir.open_containing(directory)
repo = bzrdir.find_repository()
from bzrlib.plugins.git.object_store import (
get_object_store,
)
object_store = get_object_store(repo)
repo.lock_read()
try:
if sha1 is not None:
try:
obj = object_store[str(sha1)]
except KeyError:
raise BzrCommandError("Object not found: %s" % sha1)
if pretty:
text = obj.as_pretty_string()
else:
text = obj.as_raw_string()
self.outf.write(text)
else:
for sha1 in object_store:
self.outf.write("%s\n" % sha1)
finally:
repo.unlock()
class cmd_git_refs(Command):
"""Output all of the virtual refs for a repository.
"""
hidden = True
takes_options = [Option('directory',
short_name='d',
help='Location of repository.', type=unicode)]
@display_command
def run(self, directory="."):
from bzrlib.bzrdir import (
BzrDir,
)
from bzrlib.plugins.git.refs import (
BazaarRefsContainer,
)
from bzrlib.plugins.git.object_store import (
get_object_store,
)
bzrdir, _ = BzrDir.open_containing(directory)
repo = bzrdir.find_repository()
repo.lock_read()
try:
object_store = get_object_store(repo)
refs = BazaarRefsContainer(bzrdir, object_store)
for k, v in refs.as_dict().iteritems():
self.outf.write("%s -> %s\n" % (k, v))
finally:
repo.unlock()
class cmd_git_apply(Command):
"""Apply a series of git-am style patches.
This command will in the future probably be integrated into
"bzr pull".
"""
takes_options = [
Option('signoff', short_name='s', help='Add a Signed-off-by line.'),
'force']
takes_args = ["patches*"]
def _apply_patch(self, wt, f, signoff):
"""Apply a patch.
:param wt: A Bazaar working tree object.
:param f: Patch file to read.
:param signoff: Add Signed-Off-By flag.
"""
from bzrlib.errors import BzrCommandError
from dulwich.patch import git_am_patch_split
import subprocess
(c, diff, version) = git_am_patch_split(f)
# FIXME: Cope with git-specific bits in patch
p = subprocess.Popen(["patch", "-p1"], stdin=subprocess.PIPE, cwd=wt.basedir)
p.communicate(diff)
exitcode = p.wait()
if exitcode != 0:
raise BzrCommandError("error running patch")
message = c.message
if signoff:
signed_off_by = wt.branch.get_config().username()
message += "Signed-off-by: %s\n" % signed_off_by.encode('utf-8')
wt.commit(authors=[c.author], message=message)
def run(self, patches_list=None, signoff=False, force=False):
from bzrlib.errors import UncommittedChanges
from bzrlib.workingtree import WorkingTree
if patches_list is None:
patches_list = []
tree, _ = WorkingTree.open_containing(".")
if tree.basis_tree().changes_from(tree).has_changed() and not force:
raise UncommittedChanges(tree)
tree.lock_write()
try:
for patch in patches_list:
f = open(patch, 'r')
try:
self._apply_patch(tree, f, signoff=signoff)
finally:
f.close()
finally:
tree.unlock()
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