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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
from dulwich.object_store import (
tree_lookup_path,
)
from dulwich.objects import (
Blob,
Commit,
Tree,
)
from bzrlib.versionedfile import (
AbsentContentFactory,
ChunkedContentFactory,
VersionedFiles,
)
class GitRevisions(VersionedFiles):
def __init__(self, repository, object_store):
self.repository = repository
self.object_store = object_store
def check(self, progressbar=None):
return True
def iterkeys(self):
for sha in self.object_store:
if type(sha) == Commit:
yield (sha,)
def keys(self):
return list(self.iterkeys())
def add_mpdiffs(self, records):
raise NotImplementedError(self.add_mpdiffs)
def get_record_stream(self, keys, ordering, include_delta_closure):
for key in keys:
(revid,) = key
(commit_id, mapping) = self.repository.lookup_bzr_revision_id(revid)
try:
commit = self.object_store[commit_id]
except KeyError:
yield AbsentContentFactory(key)
else:
yield ChunkedContentFactory(key,
tuple([(self.repository.lookup_foreign_revision_id(p, mapping),) for p in commit.parents]), None,
commit.as_raw_chunks())
def get_parent_map(self, keys):
ret = {}
for (revid,) in keys:
(commit_id, mapping) = self.repository.lookup_bzr_revision_id(revid)
try:
ret[(revid,)] = [(self.repository.lookup_foreign_revision_id(p, mapping),) for p in self.object_store[commit_id].parents]
except KeyError:
ret[(revid,)] = None
return ret
class GitTexts(VersionedFiles):
"""A texts VersionedFiles instance that is backed onto a Git object store."""
def __init__(self, repository):
self.repository = repository
self.object_store = self.repository._git.object_store
def check(self, progressbar=None):
return True
def add_mpdiffs(self, records):
raise NotImplementedError(self.add_mpdiffs)
def get_record_stream(self, keys, ordering, include_delta_closure):
for key in keys:
(fileid, revid) = key
(commit_id, mapping) = self.repository.lookup_bzr_revision_id(revid)
root_tree = self.object_store[commit_id].tree
path = mapping.parse_file_id(fileid)
try:
obj = tree_lookup_path(
self.object_store.__getitem__, root_tree, path)
if isinstance(obj, tuple):
(mode, item_id) = obj
obj = self.object_store[item_id]
except KeyError:
yield AbsentContentFactory(key)
else:
if isinstance(obj, Tree):
yield ChunkedContentFactory(key, None, None, [])
elif isinstance(obj, Blob):
yield ChunkedContentFactory(key, None, None, obj.chunked)
else:
raise AssertionError("file text resolved to %r" % obj)
def get_parent_map(self, keys):
raise NotImplementedError(self.get_parent_map)
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