50
def __init__(self, source, mapping, pb=None):
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def __init__(self, store, source, pb=None):
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55
"""Create a new missing objects iterator.
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self.source = source
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self._object_store = BazaarObjectStore(self.source, mapping)
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self._sent_shas = set()
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self._object_store = store
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def import_revisions(self, revids):
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self._revids.update(revids)
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def import_revisions(self, revids, roundtrip):
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"""Import a set of revisions into this git repository.
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:param revids: Revision ids of revisions to import
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:param roundtrip: Whether to roundtrip bzr metadata
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for i, revid in enumerate(revids):
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71
self.pb.update("pushing revisions", i, len(revids))
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git_commit = self.import_revision(revid)
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git_commit = self.import_revision(revid, roundtrip)
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yield (revid, git_commit)
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def need_sha(self, sha):
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if sha in self._sent_shas:
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(type, (fileid, revid)) = self._object_store._idmap.lookup_git_sha(sha)
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assert type in ("blob", "tree")
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if revid in self._revids:
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# Not sent yet, and part of the set of revisions to send
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# Not changed in the revisions to send, so either not necessary
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# or already present remotely (as git doesn't do ghosts)
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def queue(self, sha, obj, path, ie=None, inv=None):
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self._pending.append((obj, path))
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self._sent_shas.add(sha)
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def import_revision(self, revid):
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"""Import the gist of a revision into this Git repository.
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def import_revision(self, revid, roundtrip):
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"""Import a revision into this Git repository.
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:param revid: Revision id of the revision
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:param roundtrip: Whether to roundtrip bzr metadata
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inv = self.source.get_inventory(revid)
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(sha, object) = self._object_store._get_ie_object_or_sha1(ie, inv)
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if ie.parent_id is None:
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if not self.need_sha(sha):
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self.queue(sha, object, inv.id2path(ie.file_id), ie, inv)
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if ie.kind == "directory":
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todo.extend(ie.children.values())
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assert tree_sha is not None
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commit = self._object_store._get_commit(revid, tree_sha)
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self.queue(commit.id, commit, None)
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tree = self._object_store.tree_cache.revision_tree(revid)
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rev = self.source.get_revision(revid)
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for path, obj, ie in self._object_store._revision_to_objects(rev, tree,
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if obj.type_name == "commit":
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self._pending.append((obj, path))
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91
def __len__(self):
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92
return len(self._pending)
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94
def __iter__(self):
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for i, (object, path) in enumerate(self._pending):
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self.pb.update("writing pack objects", i, len(self))
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if isinstance(object, tuple):
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object = self._object_store._get_ie_object(*object)
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return iter(self._pending)
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98
class InterToGitRepository(InterRepository):
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"""See InterRepository.copy_content."""
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self.fetch(revision_id, pb, find_ghosts=False)
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def fetch(self, revision_id=None, pb=None, find_ghosts=False,
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raise NoPushSupport()
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def missing_revisions(self, stop_revision):
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if stop_revision is None:
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raise NotImplementedError
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def dfetch_refs(self, update_refs):
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"""Fetch non-roundtripped revisions into the target repository.
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:param update_refs: Generate refs to fetch. Receives dictionary
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with old names to old git shas. Should return a dictionary
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of new names to Bazaar revision ids.
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:return: revision id map, old refs dictionary and new refs dictionary
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raise NotImplementedError(self.dfetch_refs)
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def fetch_refs(self, update_refs):
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"""Fetch possibly roundtripped revisions into the target repository.
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:param update_refs: Generate refs to fetch. Receives dictionary
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with old refs (git shas), returns dictionary of new names to
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:return: old refs, new refs
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raise NotImplementedError(self.fetch_refs)
137
class InterToLocalGitRepository(InterToGitRepository):
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"""InterBranch implementation between a Bazaar and a Git repository."""
140
def __init__(self, source, target):
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super(InterToLocalGitRepository, self).__init__(source, target)
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self.target_store = self.target._git.object_store
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self.target_refs = self.target._git.refs
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def _revision_needs_fetching(self, revid):
146
if revid == NULL_REVISION:
149
sha_id = self.source_store._lookup_revision_sha1(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.
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:param stop_revisions: Revisions to check for (tuples with
163
:return: sequence of missing revisions, in topological order
164
:raise: NoSuchRevision if the stop_revisions are not present in
167
stop_revids = [revid for (sha1, revid) in stop_revisions]
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graph = self.source.get_graph()
142
170
pb = ui.ui_factory.nested_progress_bar()
144
graph = self.source.get_graph()
145
for revid, _ in graph.iter_ancestry([stop_revision]):
172
for revid, _ in graph.iter_ancestry(stop_revids):
173
assert type(revid) is str
146
174
pb.update("determining revisions to fetch", len(missing))
147
if not self.target.has_revision(revid):
175
if self._revision_needs_fetching(revid):
148
176
missing.append(revid)
149
return graph.iter_topo_order(missing)
153
def dfetch(self, stop_revision=None):
179
return graph.iter_topo_order(missing)
181
def _get_target_bzr_refs(self):
182
"""Return a dictionary with references.
184
:return: Dictionary with reference names as keys and tuples
185
with Git SHA, Bazaar revid as values.
188
refs = self.target._git.get_refs()
189
for k, v in refs.iteritems():
191
(kind, type_data) = self.source_store.lookup_git_sha(v)
199
bzr_refs[k] = (v, revid)
202
def fetch_refs(self, update_refs):
203
self.source.lock_read()
205
old_refs = self._get_target_bzr_refs()
206
new_refs = update_refs(old_refs)
207
self.fetch(mapped_refs=new_refs.values())
210
return old_refs, new_refs
212
def dfetch_refs(self, update_refs):
213
self.source.lock_read()
215
old_refs = self._get_target_bzr_refs()
216
new_refs = update_refs(old_refs)
217
revidmap, gitidmap = self.dfetch(new_refs.values())
218
for name, (gitid, revid) in new_refs.iteritems():
221
gitid = gitidmap[revid]
223
gitid = self.source_store._lookup_revision_sha1(revid)
224
self.target._git.refs[name] = gitid
225
new_refs[name] = (gitid, self.source_store.lookup_git_sha(gitid)[1][0])
228
return revidmap, old_refs, new_refs
230
def _get_missing_objects_iterator(self, pb):
231
return MissingObjectsIterator(self.source_store, self.source, pb)
233
def dfetch(self, stop_revisions):
154
234
"""Import the gist of the ancestry of a particular revision."""
156
mapping = self.target.get_mapping()
157
237
self.source.lock_read()
159
todo = [revid for revid in self.missing_revisions(stop_revision) if revid != NULL_REVISION]
239
todo = list(self.missing_revisions(stop_revisions))
160
240
pb = ui.ui_factory.nested_progress_bar()
162
object_generator = MissingObjectsIterator(self.source, mapping, pb)
242
object_generator = self._get_missing_objects_iterator(pb)
163
243
for old_bzr_revid, git_commit in object_generator.import_revisions(
165
new_bzr_revid = mapping.revision_id_foreign_to_bzr(git_commit)
244
todo, roundtrip=False):
245
new_bzr_revid = self.mapping.revision_id_foreign_to_bzr(git_commit)
166
246
revidmap[old_bzr_revid] = new_bzr_revid
167
self.target._git.object_store.add_objects(object_generator)
175
def is_compatible(source, target):
176
"""Be compatible with GitRepository."""
177
return (not isinstance(source, GitRepository) and
178
isinstance(target, GitRepository))
247
gitidmap[old_bzr_revid] = git_commit
248
self.target_store.add_objects(object_generator)
253
return revidmap, gitidmap
255
def fetch(self, revision_id=None, pb=None, find_ghosts=False,
256
fetch_spec=None, mapped_refs=None):
257
if mapped_refs is not None:
258
stop_revisions = mapped_refs
259
elif revision_id is not None:
260
stop_revisions = [(None, revision_id)]
261
elif fetch_spec is not None:
262
stop_revisions = [(None, revid) for revid in fetch_spec.heads]
264
stop_revisions = [(None, revid) for revid in self.source.all_revision_ids()]
265
self.source.lock_read()
267
todo = list(self.missing_revisions(stop_revisions))
268
pb = ui.ui_factory.nested_progress_bar()
270
object_generator = self._get_missing_objects_iterator(pb)
271
for (revid, git_sha) in object_generator.import_revisions(
272
todo, roundtrip=True):
274
self.mapping.revision_id_bzr_to_foreign(revid)
275
except errors.InvalidRevisionId:
276
self.target_refs[self.mapping.revid_as_refname(revid)] = git_sha
277
self.target_store.add_objects(object_generator)
284
def is_compatible(source, target):
285
"""Be compatible with GitRepository."""
286
return (not isinstance(source, GitRepository) and
287
isinstance(target, LocalGitRepository))
290
class InterToRemoteGitRepository(InterToGitRepository):
292
def dfetch_refs(self, update_refs):
293
"""Import the gist of the ancestry of a particular revision."""
295
def determine_wants(old_refs):
297
self.old_refs = old_refs
298
self.new_refs = update_refs(self.old_refs)
299
for name, (gitid, revid) in self.new_refs.iteritems():
301
ret[name] = self.source_store._lookup_revision_sha1(revid)
305
self.source.lock_read()
307
new_refs = self.target.send_pack(determine_wants,
308
self.source_store.generate_lossy_pack_contents)
311
return revidmap, self.old_refs, self.new_refs
313
def fetch_refs(self, update_refs):
314
raise NoPushSupport()
317
def is_compatible(source, target):
318
"""Be compatible with GitRepository."""
319
return (not isinstance(source, GitRepository) and
320
isinstance(target, RemoteGitRepository))