94
92
pb.show_pct = pb.show_count = False
96
94
pb.update("Finding revisions", 0, 2)
97
search_result = self._revids_to_fetch()
98
mutter('fetching: %s', search_result)
99
if search_result.is_empty():
95
search = self._revids_to_fetch()
101
98
pb.update("Fetching revisions", 1, 2)
102
self._fetch_everything_for_search(search_result)
99
self._fetch_everything_for_search(search)
151
151
"""Determines the exact revisions needed from self.from_repository to
152
152
install self._last_revision in self.to_repository.
154
:returns: A SearchResult of some sort. (Possibly a
155
PendingAncestryResult, EmptySearchResult, etc.)
154
If no revisions need to be fetched, then this just returns None.
157
156
if self._fetch_spec is not None:
158
# The fetch spec is already a concrete search result.
159
157
return self._fetch_spec
160
elif self._last_revision == NULL_REVISION:
161
# fetch_spec is None + last_revision is null => empty fetch.
158
mutter('fetch up to rev {%s}', self._last_revision)
159
if self._last_revision is NULL_REVISION:
162
160
# explicit limit of no revisions needed
163
return graph.EmptySearchResult()
164
elif self._last_revision is not None:
165
return graph.NotInOtherForRevs(self.to_repository,
166
self.from_repository, [self._last_revision],
167
find_ghosts=self.find_ghosts).execute()
168
else: # self._last_revision is None:
169
return graph.EverythingNotInOther(self.to_repository,
170
self.from_repository,
171
find_ghosts=self.find_ghosts).execute()
162
return self.to_repository.search_missing_revision_ids(
163
self.from_repository, self._last_revision,
164
find_ghosts=self.find_ghosts)
166
def _parent_inventories(self, revision_ids):
167
# Find all the parent revisions referenced by the stream, but
168
# not present in the stream, and make sure we send their
170
parent_maps = self.to_repository.get_parent_map(revision_ids)
172
map(parents.update, parent_maps.itervalues())
173
parents.discard(NULL_REVISION)
174
parents.difference_update(revision_ids)
175
missing_keys = set(('inventories', rev_id) for rev_id in parents)
174
179
class Inter1and2Helper(object):
331
336
selected_ids.append(parent_id)
332
337
parent_keys = [(root_id, parent_id) for parent_id in selected_ids]
333
338
return parent_keys
336
class TargetRepoKinds(object):
337
"""An enum-like set of constants.
339
They are the possible values of FetchSpecFactory.target_repo_kinds.
342
PREEXISTING = 'preexisting'
347
class FetchSpecFactory(object):
348
"""A helper for building the best fetch spec for a sprout call.
350
Factors that go into determining the sort of fetch to perform:
351
* did the caller specify any revision IDs?
352
* did the caller specify a source branch (need to fetch its
353
heads_to_fetch(), usually the tip + tags)
354
* is there an existing target repo (don't need to refetch revs it
356
* target is stacked? (similar to pre-existing target repo: even if
357
the target itself is new don't want to refetch existing revs)
359
:ivar source_branch: the source branch if one specified, else None.
360
:ivar source_branch_stop_revision_id: fetch up to this revision of
361
source_branch, rather than its tip.
362
:ivar source_repo: the source repository if one found, else None.
363
:ivar target_repo: the target repository acquired by sprout.
364
:ivar target_repo_kind: one of the TargetRepoKinds constants.
368
self._explicit_rev_ids = set()
369
self.source_branch = None
370
self.source_branch_stop_revision_id = None
371
self.source_repo = None
372
self.target_repo = None
373
self.target_repo_kind = None
375
def add_revision_ids(self, revision_ids):
376
"""Add revision_ids to the set of revision_ids to be fetched."""
377
self._explicit_rev_ids.update(revision_ids)
379
def make_fetch_spec(self):
380
"""Build a SearchResult or PendingAncestryResult or etc."""
381
if self.target_repo_kind is None or self.source_repo is None:
382
raise AssertionError(
383
'Incomplete FetchSpecFactory: %r' % (self.__dict__,))
384
if len(self._explicit_rev_ids) == 0 and self.source_branch is None:
385
# Caller hasn't specified any revisions or source branch
386
if self.target_repo_kind == TargetRepoKinds.EMPTY:
387
return graph.EverythingResult(self.source_repo)
389
# We want everything not already in the target (or target's
391
return graph.EverythingNotInOther(
392
self.target_repo, self.source_repo).execute()
393
heads_to_fetch = set(self._explicit_rev_ids)
394
if self.source_branch is not None:
395
must_fetch, if_present_fetch = self.source_branch.heads_to_fetch()
396
if self.source_branch_stop_revision_id is not None:
397
# Replace the tip rev from must_fetch with the stop revision
398
# XXX: this might be wrong if the tip rev is also in the
399
# must_fetch set for other reasons (e.g. it's the tip of
400
# multiple loom threads?), but then it's pretty unclear what it
401
# should mean to specify a stop_revision in that case anyway.
402
must_fetch.discard(self.source_branch.last_revision())
403
must_fetch.add(self.source_branch_stop_revision_id)
404
heads_to_fetch.update(must_fetch)
406
if_present_fetch = set()
407
if self.target_repo_kind == TargetRepoKinds.EMPTY:
408
# PendingAncestryResult does not raise errors if a requested head
409
# is absent. Ideally it would support the
410
# required_ids/if_present_ids distinction, but in practice
411
# heads_to_fetch will almost certainly be present so this doesn't
413
all_heads = heads_to_fetch.union(if_present_fetch)
414
return graph.PendingAncestryResult(all_heads, self.source_repo)
415
return graph.NotInOtherForRevs(self.target_repo, self.source_repo,
416
required_ids=heads_to_fetch, if_present_ids=if_present_fetch