1
# Copyright (C) 2009-2010 Jelmer Vernooij <jelmer@samba.org>
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
"""Push implementation that simply prints message saying push is not supported."""
23
from bzrlib.graph import (
24
PendingAncestryResult,
26
from bzrlib.repository import (
29
from bzrlib.revision import (
33
from bzrlib.plugins.git.errors import (
36
from bzrlib.plugins.git.object_store import (
39
from bzrlib.plugins.git.repository import (
44
from bzrlib.plugins.git.remote import (
49
class MissingObjectsIterator(object):
50
"""Iterate over git objects that are missing from a target repository.
54
def __init__(self, store, source, pb=None):
55
"""Create a new missing objects iterator.
59
self._object_store = store
63
def import_revisions(self, revids, roundtrip):
64
"""Import a set of revisions into this git repository.
66
:param revids: Revision ids of revisions to import
67
:param roundtrip: Whether to roundtrip bzr metadata
69
for i, revid in enumerate(revids):
71
self.pb.update("pushing revisions", i, len(revids))
72
git_commit = self.import_revision(revid, roundtrip)
73
yield (revid, git_commit)
75
def import_revision(self, revid, roundtrip):
76
"""Import a revision into this Git repository.
78
:param revid: Revision id of the revision
79
:param roundtrip: Whether to roundtrip bzr metadata
81
tree = self._object_store.tree_cache.revision_tree(revid)
82
rev = self.source.get_revision(revid)
84
for path, obj, ie in self._object_store._revision_to_objects(rev, tree,
86
if obj.type_name == "commit":
88
self._pending.append((obj, path))
92
return len(self._pending)
95
return iter(self._pending)
98
class InterToGitRepository(InterRepository):
99
"""InterRepository that copies into a Git repository."""
101
_matching_repo_format = GitRepositoryFormat()
103
def __init__(self, source, target):
104
super(InterToGitRepository, self).__init__(source, target)
105
self.mapping = self.target.get_mapping()
106
self.source_store = BazaarObjectStore(self.source, self.mapping)
109
def _get_repo_format_to_test():
112
def copy_content(self, revision_id=None, pb=None):
113
"""See InterRepository.copy_content."""
114
self.fetch(revision_id, pb, find_ghosts=False)
116
def dfetch_refs(self, update_refs):
117
"""Fetch non-roundtripped revisions into the target repository.
119
:param update_refs: Generate refs to fetch. Receives dictionary
120
with old names to old git shas. Should return a dictionary
121
of new names to Bazaar revision ids.
122
:return: revision id map, old refs dictionary and new refs dictionary
124
raise NotImplementedError(self.dfetch_refs)
126
def fetch_refs(self, update_refs):
127
"""Fetch possibly roundtripped revisions into the target repository.
129
:param update_refs: Generate refs to fetch. Receives dictionary
130
with old refs (git shas), returns dictionary of new names to
132
:return: old refs, new refs
134
raise NotImplementedError(self.fetch_refs)
137
class InterToLocalGitRepository(InterToGitRepository):
138
"""InterBranch implementation between a Bazaar and a Git repository."""
140
def __init__(self, source, target):
141
super(InterToLocalGitRepository, self).__init__(source, target)
142
self.target_store = self.target._git.object_store
143
self.target_refs = self.target._git.refs
145
def _revision_needs_fetching(self, revid):
146
if revid == NULL_REVISION:
149
sha_id = self.source_store._lookup_revision_sha1(revid)
151
raise errors.NoSuchRevision(self.source, revid)
153
return (sha_id not in self.target_store)
154
except errors.NoSuchRevision:
158
def missing_revisions(self, stop_revisions):
159
"""Find the revisions that are missing from the target repository.
161
:param stop_revisions: Revisions to check for
162
:return: sequence of missing revisions, in topological order
163
:raise: NoSuchRevision if the stop_revisions are not present in
167
graph = self.source.get_graph()
168
pb = ui.ui_factory.nested_progress_bar()
170
for revid, _ in graph.iter_ancestry(stop_revisions):
171
assert type(revid) is str
172
pb.update("determining revisions to fetch", len(missing))
173
if self._revision_needs_fetching(revid):
174
missing.append(revid)
177
return graph.iter_topo_order(missing)
179
def _get_target_bzr_refs(self):
180
"""Return a dictionary with references.
182
:return: Dictionary with reference names as keys and tuples
183
with Git SHA, Bazaar revid as values.
186
refs = self.target._git.get_refs()
187
for k, v in refs.iteritems():
189
(kind, (revid, treesha)) = self.source_store.lookup_git_sha(v)
192
bzr_refs[k] = (v, revid)
195
def fetch_refs(self, update_refs):
196
self.source.lock_read()
198
old_refs = self._get_target_bzr_refs()
199
new_refs = update_refs(old_refs)
200
# FIXME: Keep track of already looked up revid<->sha mappings
201
fetch_spec = PendingAncestryResult(
202
[revid for sha, revid in new_refs.values()], self.source)
203
self.fetch(fetch_spec=fetch_spec)
206
return old_refs, new_refs
208
def dfetch_refs(self, update_refs):
209
self.source.lock_read()
211
old_refs = self._get_target_bzr_refs()
212
new_refs = update_refs(old_refs)
213
revidmap, gitidmap = self.dfetch(new_refs.values())
214
for name, (gitid, revid) in new_refs.iteritems():
217
gitid = gitidmap[revid]
219
gitid = self.source_store._lookup_revision_sha1(revid)
220
self.target._git.refs[name] = gitid
221
new_refs[name] = (gitid, self.source_store.lookup_git_sha(gitid)[1][0])
224
return revidmap, old_refs, new_refs
226
def _get_missing_objects_iterator(self, pb):
227
return MissingObjectsIterator(self.source_store, self.source, pb)
229
def dfetch(self, stop_revisions):
230
"""Import the gist of the ancestry of a particular revision."""
233
self.source.lock_read()
235
todo = list(self.missing_revisions([revid for sha, revid in stop_revisions]))
236
pb = ui.ui_factory.nested_progress_bar()
238
object_generator = self._get_missing_objects_iterator(pb)
239
for old_bzr_revid, git_commit in object_generator.import_revisions(
240
todo, roundtrip=False):
241
new_bzr_revid = self.mapping.revision_id_foreign_to_bzr(git_commit)
242
revidmap[old_bzr_revid] = new_bzr_revid
243
gitidmap[old_bzr_revid] = git_commit
244
self.target_store.add_objects(object_generator)
249
return revidmap, gitidmap
251
def fetch(self, revision_id=None, pb=None, find_ghosts=False,
253
if revision_id is not None:
254
stop_revisions = [revision_id]
255
elif fetch_spec is not None:
256
stop_revisions = fetch_spec.heads
258
stop_revisions = self.source.all_revision_ids()
259
self.source.lock_read()
261
todo = list(self.missing_revisions(stop_revisions))
262
pb = ui.ui_factory.nested_progress_bar()
264
object_generator = self._get_missing_objects_iterator(pb)
265
for (revid, git_sha) in object_generator.import_revisions(
266
todo, roundtrip=True):
268
self.mapping.revision_id_bzr_to_foreign(revid)
269
except errors.InvalidRevisionId:
270
self.target_refs[self.mapping.revid_as_refname(revid)] = git_sha
271
self.target_store.add_objects(object_generator)
278
def is_compatible(source, target):
279
"""Be compatible with GitRepository."""
280
return (not isinstance(source, GitRepository) and
281
isinstance(target, LocalGitRepository))
284
class InterToRemoteGitRepository(InterToGitRepository):
286
def dfetch_refs(self, update_refs):
287
"""Import the gist of the ancestry of a particular revision."""
289
def determine_wants(old_refs):
291
self.old_refs = old_refs
292
self.new_refs = update_refs(self.old_refs)
293
for name, (gitid, revid) in self.new_refs.iteritems():
295
ret[name] = self.source_store._lookup_revision_sha1(revid)
299
self.source.lock_read()
301
new_refs = self.target.send_pack(determine_wants,
302
self.source_store.generate_lossy_pack_contents)
305
return revidmap, self.old_refs, self.new_refs
307
def fetch_refs(self, update_refs):
308
raise NoPushSupport()
311
def is_compatible(source, target):
312
"""Be compatible with GitRepository."""
313
return (not isinstance(source, GitRepository) and
314
isinstance(target, RemoteGitRepository))
added
removed
push.py
