/brz/remove-bazaar

# 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,

    )

from bzrlib.plugins.git import (

    get_rich_root_format,

    )

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):

        import os

        from bzrlib import (

            ui,

            urlutils,

            )

        from bzrlib.bzrdir import (

            BzrDir,

            )

        from bzrlib.errors import (

            BzrCommandError,

            NoRepositoryPresent,

            NotBranchError,

            )

        from bzrlib.repository import (

            InterRepository,

            Repository,

            )

        from bzrlib.plugins.git.branch import (

            GitBranch,

            extract_tags,

            )

        from bzrlib.plugins.git.repository import GitRepository

        if dest_location is None:

            dest_location = os.path.basename(src_location.rstrip("/\\"))

        source_repo = Repository.open(src_location)

        if not isinstance(source_repo, GitRepository):

            raise BzrCommandError("%r is not a git repository" % src_location)

        format = get_rich_root_format()

        try:

            target_bzrdir = BzrDir.open(dest_location)

        except NotBranchError:

            target_bzrdir = BzrDir.create(dest_location, format=format)

        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_refs()

        tags = {}

        for k, v in extract_tags(refs).iteritems():

            tags[k] = mapping.revision_id_foreign_to_bzr(v)

        pb = ui.ui_factory.nested_progress_bar()

        try:

            for i, (name, ref) in enumerate(refs.iteritems()):

                if name.startswith("refs/tags/"):

                    continue

                pb.update("creating branches", i, len(refs))

                head_loc = os.path.join(dest_location, name)

                try:

                    head_bzrdir = BzrDir.open(head_loc)

                except NotBranchError:

                    parent_path = urlutils.dirname(head_loc)

                    if not os.path.isdir(parent_path):

                        os.makedirs(parent_path)

                    head_bzrdir = BzrDir.create(head_loc, format=format)

                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()

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()