60
def import_revisions(self, revids):
63
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 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._object_store.parent_invs_cache.get_inventory(revid)
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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 in self._object_store._revision_to_objects(rev, inv):
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if obj._type == "commit":
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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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"""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 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)
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class InterToLocalGitRepository(InterToGitRepository):
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def missing_revisions(self, stop_revisions, check_revid):
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"""InterBranch implementation between a Bazaar and a Git repository."""
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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):
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if revid == NULL_REVISION:
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sha_id = self.source_store._lookup_revision_sha1(revid)
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raise errors.NoSuchRevision(self.source, revid)
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return (sha_id not in self.target_store)
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except errors.NoSuchRevision:
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def missing_revisions(self, stop_revisions):
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"""Find the revisions that are missing from the target repository.
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:param stop_revisions: Revisions to check for
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:return: sequence of missing revisions, in topological order
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:raise: NoSuchRevision if the stop_revisions are not present in
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graph = self.source.get_graph()
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pb = ui.ui_factory.nested_progress_bar()
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graph = self.source.get_graph()
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for revid, _ in graph.iter_ancestry(stop_revisions):
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assert type(revid) is str
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pb.update("determining revisions to fetch", len(missing))
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if not check_revid(revid):
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if self._revision_needs_fetching(revid):
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missing.append(revid)
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return graph.iter_topo_order(missing)
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def dfetch_refs(self, refs):
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revidmap, gitidmap = self.dfetch(refs.values())
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for name, revid in refs.iteritems():
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if revid in gitidmap:
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gitid = gitidmap[revid]
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gitid = self.source_store._lookup_revision_sha1(revid)
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self.target._git.refs[name] = gitid
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new_refs[name] = gitid
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return revidmap, new_refs
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return graph.iter_topo_order(missing)
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def _get_target_bzr_refs(self):
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"""Return a dictionary with references.
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:return: Dictionary with reference names as keys and tuples
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with Git SHA, Bazaar revid as values.
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refs = self.target._git.get_refs()
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for k, v in refs.iteritems():
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(kind, (revid, treesha)) = self.source_store.lookup_git_sha(v)
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bzr_refs[k] = (v, revid)
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def fetch_refs(self, update_refs):
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self.source.lock_read()
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old_refs = self._get_target_bzr_refs()
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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)
137
229
def dfetch(self, stop_revisions):
138
230
"""Import the gist of the ancestry of a particular revision."""
141
233
self.source.lock_read()
143
target_store = self.target._git.object_store
144
def check_revid(revid):
145
if revid == NULL_REVISION:
148
return (self.source_store._lookup_revision_sha1(revid) in target_store)
149
except errors.NoSuchRevision:
152
todo = list(self.missing_revisions(stop_revisions, check_revid))
235
todo = list(self.missing_revisions([revid for sha, revid in stop_revisions]))
153
236
pb = ui.ui_factory.nested_progress_bar()
155
object_generator = MissingObjectsIterator(self.source_store, self.source, pb)
238
object_generator = self._get_missing_objects_iterator(pb)
156
239
for old_bzr_revid, git_commit in object_generator.import_revisions(
240
todo, roundtrip=False):
158
241
new_bzr_revid = self.mapping.revision_id_foreign_to_bzr(git_commit)
159
242
revidmap[old_bzr_revid] = new_bzr_revid
160
243
gitidmap[old_bzr_revid] = git_commit
161
target_store.add_objects(object_generator)
244
self.target_store.add_objects(object_generator)
165
248
self.source.unlock()
166
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)
169
278
def is_compatible(source, target):
170
279
"""Be compatible with GitRepository."""
175
284
class InterToRemoteGitRepository(InterToGitRepository):
177
def dfetch_refs(self, new_refs):
286
def dfetch_refs(self, update_refs):
178
287
"""Import the gist of the ancestry of a particular revision."""
180
def determine_wants(refs):
289
def determine_wants(old_refs):
182
for name, revid in new_refs.iteritems():
183
ret[name] = self.source_store._lookup_revision_sha1(revid)
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)
185
299
self.source.lock_read()
187
301
new_refs = self.target.send_pack(determine_wants,
188
self.source_store.generate_pack_contents)
302
self.source_store.generate_lossy_pack_contents)
190
304
self.source.unlock()
191
return revidmap, new_refs
305
return revidmap, self.old_refs, self.new_refs
307
def fetch_refs(self, update_refs):
308
raise NoPushSupport()
194
311
def is_compatible(source, target):