1
# Copyright (C) 2007 Canonical Ltd
2
# Copyright (C) 2008-2009 Jelmer Vernooij <jelmer@samba.org>
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 2 of the License, or
7
# (at your option) any later version.
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12
# GNU General Public License for more details.
14
# You should have received a copy of the GNU General Public License
15
# along with this program; if not, write to the Free Software
16
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
"""An adapter between a Git Repository and a Bazaar Branch"""
27
from bzrlib.foreign import (
31
from bzrlib.plugins.git.commit import (
34
from bzrlib.plugins.git.mapping import (
39
from bzrlib.plugins.git.tree import (
42
from bzrlib.plugins.git.versionedfiles import (
48
from dulwich.objects import (
53
class GitRepository(ForeignRepository):
54
"""An adapter to git repositories for bzr."""
57
_commit_builder_class = GitCommitBuilder
60
def __init__(self, gitdir, lockfiles):
61
ForeignRepository.__init__(self, GitRepositoryFormat(), gitdir,
63
from bzrlib.plugins.git import fetch, push
64
for optimiser in [fetch.InterRemoteGitNonGitRepository,
65
fetch.InterLocalGitNonGitRepository,
66
fetch.InterGitGitRepository,
67
push.InterToLocalGitRepository,
68
push.InterToRemoteGitRepository]:
69
repository.InterRepository.register_optimiser(optimiser)
74
def supports_rich_root(self):
77
def _warn_if_deprecated(self, branch=None):
78
# This class isn't deprecated
81
def get_mapping(self):
82
return default_mapping
84
def make_working_trees(self):
85
return not self._git.bare
87
def revision_graph_can_have_wrong_parents(self):
90
def dfetch(self, source, stop_revision):
91
interrepo = repository.InterRepository.get(source, self)
92
return interrepo.dfetch(stop_revision)
95
class LocalGitRepository(GitRepository):
96
"""Git repository on the file system."""
98
def __init__(self, gitdir, lockfiles):
99
GitRepository.__init__(self, gitdir, lockfiles)
100
self.base = gitdir.root_transport.base
101
self._git = gitdir._git
102
self.signatures = None
103
self.revisions = GitRevisions(self, self._git.object_store)
104
self.inventories = None
105
self.texts = GitTexts(self)
107
def _iter_revision_ids(self):
108
mapping = self.get_mapping()
109
for sha in self._git.object_store:
110
o = self._git.object_store[sha]
111
if not isinstance(o, Commit):
113
rev, roundtrip_revid, verifiers = mapping.import_commit(o,
114
self.lookup_foreign_revision_id)
115
yield o.id, rev.revision_id, roundtrip_revid
117
def all_revision_ids(self):
119
for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
122
ret.add(roundtrip_revid)
125
def get_parent_map(self, revids):
127
for revision_id in revids:
128
assert isinstance(revision_id, str)
129
if revision_id == revision.NULL_REVISION:
130
parent_map[revision_id] = ()
132
hexsha, mapping = self.lookup_bzr_revision_id(revision_id)
134
commit = self._git[hexsha]
137
parent_map[revision_id] = [
138
self.lookup_foreign_revision_id(p, mapping)
139
for p in commit.parents]
142
def get_ancestry(self, revision_id, topo_sorted=True):
143
"""See Repository.get_ancestry().
145
if revision_id is None:
146
return [None, revision.NULL_REVISION] + self._all_revision_ids()
147
assert isinstance(revision_id, str)
149
graph = self.get_graph()
150
for rev, parents in graph.iter_ancestry([revision_id]):
153
return [None] + ancestry
155
def get_signature_text(self, revision_id):
156
raise errors.NoSuchRevision(self, revision_id)
158
def pack(self, hint=None, clean_obsolete_packs=False):
159
self._git.object_store.pack_loose_objects()
161
def lookup_foreign_revision_id(self, foreign_revid, mapping=None):
162
"""Lookup a revision id.
165
assert type(foreign_revid) is str
167
mapping = self.get_mapping()
168
from dulwich.protocol import (
171
if foreign_revid == ZERO_SHA:
172
return revision.NULL_REVISION
173
commit = self._git[foreign_revid]
174
rev, roundtrip_revid, verifiers = mapping.import_commit(commit,
176
# FIXME: check testament before doing this?
178
return roundtrip_revid
180
return rev.revision_id
182
def has_signature_for_revision_id(self, revision_id):
185
def lookup_bzr_revision_id(self, bzr_revid, mapping=None):
187
return mapping_registry.revision_id_bzr_to_foreign(bzr_revid)
188
except errors.InvalidRevisionId:
190
mapping = self.get_mapping()
192
return (self._git.refs[mapping.revid_as_refname(bzr_revid)],
195
# Update refs from Git commit objects
196
# FIXME: Hitting this a lot will be very inefficient...
197
for git_sha, revid, roundtrip_revid in self._iter_revision_ids():
198
if not roundtrip_revid:
200
refname = mapping.revid_as_refname(roundtrip_revid)
201
self._git.refs[refname] = git_sha
202
if roundtrip_revid == bzr_revid:
203
return git_sha, mapping
204
raise errors.NoSuchRevision(self, bzr_revid)
206
def get_revision(self, revision_id):
207
git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
209
commit = self._git[git_commit_id]
211
raise errors.NoSuchRevision(self, revision_id)
212
revision, roundtrip_revid, verifiers = mapping.import_commit(
213
commit, self.lookup_foreign_revision_id)
214
assert revision is not None
215
# FIXME: check verifiers ?
217
revision.revision_id = roundtrip_revid
220
def has_revision(self, revision_id):
222
git_commit_id, mapping = self.lookup_bzr_revision_id(revision_id)
223
except errors.NoSuchRevision:
225
return (git_commit_id in self._git)
227
def has_revisions(self, revision_ids):
228
return set(filter(self.has_revision, revision_ids))
230
def get_revisions(self, revids):
231
return [self.get_revision(r) for r in revids]
233
def revision_trees(self, revids):
235
yield self.revision_tree(revid)
237
def revision_tree(self, revision_id):
238
revision_id = revision.ensure_null(revision_id)
239
if revision_id == revision.NULL_REVISION:
240
inv = inventory.Inventory(root_id=None)
241
inv.revision_id = revision_id
242
return revisiontree.RevisionTree(self, inv, revision_id)
243
return GitRevisionTree(self, revision_id)
245
def get_inventory(self, revision_id):
246
assert revision_id != None
247
return self.revision_tree(revision_id).inventory
249
def set_make_working_trees(self, trees):
252
def fetch_objects(self, determine_wants, graph_walker, resolve_ext_ref,
254
return self._git.fetch_objects(determine_wants, graph_walker, progress)
256
def _get_versioned_file_checker(self, text_key_references=None,
258
return GitVersionedFileChecker(self,
259
text_key_references=text_key_references, ancestors=ancestors)
262
class GitVersionedFileChecker(repository._VersionedFileChecker):
266
def _check_file_version_parents(self, texts, progress_bar):
270
class GitRepositoryFormat(repository.RepositoryFormat):
271
"""Git repository format."""
273
supports_tree_reference = False
274
rich_root_data = True
276
def get_format_description(self):
277
return "Git Repository"
279
def initialize(self, url, shared=False, _internal=False):
280
raise errors.UninitializableFormat(self)
282
def check_conversion_target(self, target_repo_format):
283
return target_repo_format.rich_root_data
285
def get_foreign_tests_repository_factory(self):
286
from bzrlib.plugins.git.tests.test_repository import (
287
ForeignTestsRepositoryFactory,
289
return ForeignTestsRepositoryFactory()
291
def network_name(self):
added
removed
repository.py
