49
54
def __init__(self, to_repository, from_repository, last_revision=None,
50
pb=None, find_ghosts=True, fetch_spec=None):
55
find_ghosts=True, fetch_spec=None):
51
56
"""Create a repo fetcher.
53
58
:param last_revision: If set, try to limit to the data this revision
55
60
:param find_ghosts: If True search the entire history for ghosts.
56
:param _write_group_acquired_callable: Don't use; this parameter only
57
exists to facilitate a hack done in InterPackRepo.fetch. We would
58
like to remove this parameter.
59
:param pb: ProgressBar object to use; deprecated and ignored.
60
This method will just create one on top of the stack.
63
symbol_versioning.warn(
64
symbol_versioning.deprecated_in((1, 14, 0))
65
% "pb parameter to RepoFetcher.__init__")
66
# and for simplicity it is in fact ignored
67
if to_repository.has_same_location(from_repository):
68
# repository.fetch should be taking care of this case.
69
raise errors.BzrError('RepoFetcher run '
70
'between two objects at the same location: '
71
'%r and %r' % (to_repository, from_repository))
62
# repository.fetch has the responsibility for short-circuiting
63
# attempts to copy between a repository and itself.
72
64
self.to_repository = to_repository
73
65
self.from_repository = from_repository
74
66
self.sink = to_repository._get_sink()
167
162
if self._last_revision is NULL_REVISION:
168
163
# explicit limit of no revisions needed
170
if (self._last_revision is not None and
171
self.to_repository.has_revision(self._last_revision)):
174
return self.to_repository.search_missing_revision_ids(
175
self.from_repository, self._last_revision,
176
find_ghosts=self.find_ghosts)
177
except errors.NoSuchRevision, e:
178
raise InstallFailed([self._last_revision])
165
return self.to_repository.search_missing_revision_ids(
166
self.from_repository, self._last_revision,
167
find_ghosts=self.find_ghosts)
169
def _parent_inventories(self, revision_ids):
170
# Find all the parent revisions referenced by the stream, but
171
# not present in the stream, and make sure we send their
173
parent_maps = self.to_repository.get_parent_map(revision_ids)
175
map(parents.update, parent_maps.itervalues())
176
parents.discard(NULL_REVISION)
177
parents.difference_update(revision_ids)
178
missing_keys = set(('inventories', rev_id) for rev_id in parents)
181
182
class Inter1and2Helper(object):
248
246
# yet, and are unlikely to in non-rich-root environments anyway.
249
247
root_id_order.sort(key=operator.itemgetter(0))
250
248
# Create a record stream containing the roots to create.
252
for key in root_id_order:
253
root_id, rev_id = key
254
rev_parents = parent_map[rev_id]
255
# We drop revision parents with different file-ids, because
256
# that represents a rename of the root to a different location
257
# - its not actually a parent for us. (We could look for that
258
# file id in the revision tree at considerably more expense,
259
# but for now this is sufficient (and reconcile will catch and
260
# correct this anyway).
261
# When a parent revision is a ghost, we guess that its root id
262
# was unchanged (rather than trimming it from the parent list).
263
parent_keys = tuple((root_id, parent) for parent in rev_parents
264
if parent != NULL_REVISION and
265
rev_id_to_root_id.get(parent, root_id) == root_id)
266
yield FulltextContentFactory(key, parent_keys, None, '')
267
return [('texts', yield_roots())]
250
# XXX: not covered by tests, should have a flag to always run
251
# this. -- mbp 20100129
252
graph = _get_rich_root_heads_graph(self.source, revs)
253
new_roots_stream = _new_root_data_stream(
254
root_id_order, rev_id_to_root_id, parent_map, self.source, graph)
255
return [('texts', new_roots_stream)]
258
def _get_rich_root_heads_graph(source_repo, revision_ids):
259
"""Get a Graph object suitable for asking heads() for new rich roots."""
260
st = static_tuple.StaticTuple
261
revision_keys = [st(r_id).intern() for r_id in revision_ids]
262
known_graph = source_repo.revisions.get_known_graph_ancestry(
264
return _mod_graph.GraphThunkIdsToKeys(known_graph)
267
def _new_root_data_stream(
268
root_keys_to_create, rev_id_to_root_id_map, parent_map, repo, graph=None):
269
"""Generate a texts substream of synthesised root entries.
271
Used in fetches that do rich-root upgrades.
273
:param root_keys_to_create: iterable of (root_id, rev_id) pairs describing
274
the root entries to create.
275
:param rev_id_to_root_id_map: dict of known rev_id -> root_id mappings for
276
calculating the parents. If a parent rev_id is not found here then it
277
will be recalculated.
278
:param parent_map: a parent map for all the revisions in
280
:param graph: a graph to use instead of repo.get_graph().
282
for root_key in root_keys_to_create:
283
root_id, rev_id = root_key
284
parent_keys = _parent_keys_for_root_version(
285
root_id, rev_id, rev_id_to_root_id_map, parent_map, repo, graph)
286
yield versionedfile.FulltextContentFactory(
287
root_key, parent_keys, None, '')
290
def _parent_keys_for_root_version(
291
root_id, rev_id, rev_id_to_root_id_map, parent_map, repo, graph=None):
292
"""Get the parent keys for a given root id.
294
A helper function for _new_root_data_stream.
296
# Include direct parents of the revision, but only if they used the same
297
# root_id and are heads.
298
rev_parents = parent_map[rev_id]
300
for parent_id in rev_parents:
301
if parent_id == NULL_REVISION:
303
if parent_id not in rev_id_to_root_id_map:
304
# We probably didn't read this revision, go spend the extra effort
307
tree = repo.revision_tree(parent_id)
308
except errors.NoSuchRevision:
309
# Ghost, fill out rev_id_to_root_id in case we encounter this
311
# But set parent_root_id to None since we don't really know
312
parent_root_id = None
314
parent_root_id = tree.get_root_id()
315
rev_id_to_root_id_map[parent_id] = None
317
# rev_id_to_root_id_map[parent_id] = parent_root_id
318
# memory consumption maybe?
320
parent_root_id = rev_id_to_root_id_map[parent_id]
321
if root_id == parent_root_id:
322
# With stacking we _might_ want to refer to a non-local revision,
323
# but this code path only applies when we have the full content
324
# available, so ghosts really are ghosts, not just the edge of
326
parent_ids.append(parent_id)
328
# root_id may be in the parent anyway.
330
tree = repo.revision_tree(parent_id)
331
except errors.NoSuchRevision:
332
# ghost, can't refer to it.
336
parent_ids.append(tree.inventory[root_id].revision)
337
except errors.NoSuchId:
340
# Drop non-head parents
342
graph = repo.get_graph()
343
heads = graph.heads(parent_ids)
345
for parent_id in parent_ids:
346
if parent_id in heads and parent_id not in selected_ids:
347
selected_ids.append(parent_id)
348
parent_keys = [(root_id, parent_id) for parent_id in selected_ids]