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# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
#
# 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
"""Push implementation that simply prints message saying push is not supported."""
from bzrlib import (
errors,
ui,
)
from bzrlib.repository import (
InterRepository,
)
from bzrlib.revision import (
NULL_REVISION,
)
from bzrlib.plugins.git.errors import (
NoPushSupport,
)
from bzrlib.plugins.git.object_store import (
BazaarObjectStore,
)
from bzrlib.plugins.git.repository import (
GitRepository,
LocalGitRepository,
GitRepositoryFormat,
)
from bzrlib.plugins.git.remote import (
RemoteGitRepository,
)
class MissingObjectsIterator(object):
"""Iterate over git objects that are missing from a target repository.
"""
def __init__(self, store, source, pb=None):
"""Create a new missing objects iterator.
"""
self.source = source
self._object_store = store
self._pending = []
self.pb = pb
def import_revisions(self, revids):
for i, revid in enumerate(revids):
if self.pb:
self.pb.update("pushing revisions", i, len(revids))
git_commit = self.import_revision(revid)
yield (revid, git_commit)
def import_revision(self, revid):
"""Import the gist of a revision into this Git repository.
"""
tree = self._object_store.tree_cache.revision_tree(revid)
rev = self.source.get_revision(revid)
commit = None
for path, obj, ie in self._object_store._revision_to_objects(rev, tree):
if obj.type_name == "commit":
commit = obj
self._pending.append((obj, path))
return commit.id
def __len__(self):
return len(self._pending)
def __iter__(self):
return iter(self._pending)
class InterToGitRepository(InterRepository):
"""InterRepository that copies into a Git repository."""
_matching_repo_format = GitRepositoryFormat()
def __init__(self, source, target):
super(InterToGitRepository, self).__init__(source, target)
self.mapping = self.target.get_mapping()
self.source_store = BazaarObjectStore(self.source, self.mapping)
@staticmethod
def _get_repo_format_to_test():
return None
def copy_content(self, revision_id=None, pb=None):
"""See InterRepository.copy_content."""
self.fetch(revision_id, pb, find_ghosts=False)
def fetch(self, revision_id=None, pb=None, find_ghosts=False,
fetch_spec=None):
raise NoPushSupport()
class InterToLocalGitRepository(InterToGitRepository):
def missing_revisions(self, stop_revisions, check_revid):
missing = []
pb = ui.ui_factory.nested_progress_bar()
try:
graph = self.source.get_graph()
for revid, _ in graph.iter_ancestry(stop_revisions):
pb.update("determining revisions to fetch", len(missing))
if not check_revid(revid):
missing.append(revid)
return graph.iter_topo_order(missing)
finally:
pb.finished()
def dfetch_refs(self, refs):
old_refs = self.target._git.get_refs()
new_refs = {}
revidmap, gitidmap = self.dfetch(refs.values())
for name, revid in refs.iteritems():
if revid in gitidmap:
gitid = gitidmap[revid]
else:
gitid = self.source_store._lookup_revision_sha1(revid)
self.target._git.refs[name] = gitid
new_refs[name] = gitid
return revidmap, old_refs, new_refs
def dfetch(self, stop_revisions):
"""Import the gist of the ancestry of a particular revision."""
gitidmap = {}
revidmap = {}
self.source.lock_read()
try:
target_store = self.target._git.object_store
def check_revid(revid):
if revid == NULL_REVISION:
return True
try:
return (self.source_store._lookup_revision_sha1(revid) in target_store)
except errors.NoSuchRevision:
# Ghost, can't dpush
return True
todo = list(self.missing_revisions(stop_revisions, check_revid))
pb = ui.ui_factory.nested_progress_bar()
try:
object_generator = MissingObjectsIterator(self.source_store, self.source, pb)
for old_bzr_revid, git_commit in object_generator.import_revisions(
todo):
new_bzr_revid = self.mapping.revision_id_foreign_to_bzr(git_commit)
revidmap[old_bzr_revid] = new_bzr_revid
gitidmap[old_bzr_revid] = git_commit
target_store.add_objects(object_generator)
finally:
pb.finished()
finally:
self.source.unlock()
return revidmap, gitidmap
@staticmethod
def is_compatible(source, target):
"""Be compatible with GitRepository."""
return (not isinstance(source, GitRepository) and
isinstance(target, LocalGitRepository))
class InterToRemoteGitRepository(InterToGitRepository):
def dfetch_refs(self, new_refs):
"""Import the gist of the ancestry of a particular revision."""
revidmap = {}
old_refs = {}
def determine_wants(refs):
ret = {}
old_refs.update(new_refs)
for name, revid in new_refs.iteritems():
ret[name] = self.source_store._lookup_revision_sha1(revid)
return ret
self.source.lock_read()
try:
new_refs = self.target.send_pack(determine_wants,
self.source_store.generate_pack_contents)
finally:
self.source.unlock()
return revidmap, old_refs, new_refs
@staticmethod
def is_compatible(source, target):
"""Be compatible with GitRepository."""
return (not isinstance(source, GitRepository) and
isinstance(target, RemoteGitRepository))
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