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pb.show_pct = pb.show_count = False
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pb.update("Finding revisions", 0, 2)
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search = self._revids_to_fetch()
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search_result = self._revids_to_fetch()
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mutter('fetching: %s', search_result)
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if search_result.is_empty():
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pb.update("Fetching revisions", 1, 2)
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self._fetch_everything_for_search(search)
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self._fetch_everything_for_search(search_result)
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"""Determines the exact revisions needed from self.from_repository to
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install self._last_revision in self.to_repository.
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If no revisions need to be fetched, then this just returns None.
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:returns: A SearchResult of some sort. (Possibly a
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PendingAncestryResult, EmptySearchResult, etc.)
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if self._fetch_spec is not None:
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# The fetch spec is already a concrete search result.
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return self._fetch_spec
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mutter('fetch up to rev {%s}', self._last_revision)
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if self._last_revision is NULL_REVISION:
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elif self._last_revision == NULL_REVISION:
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# fetch_spec is None + last_revision is null => empty fetch.
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# explicit limit of no revisions needed
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return self.to_repository.search_missing_revision_ids(
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self.from_repository, self._last_revision,
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find_ghosts=self.find_ghosts)
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def _parent_inventories(self, revision_ids):
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# Find all the parent revisions referenced by the stream, but
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# not present in the stream, and make sure we send their
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parent_maps = self.to_repository.get_parent_map(revision_ids)
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map(parents.update, parent_maps.itervalues())
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parents.discard(NULL_REVISION)
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parents.difference_update(revision_ids)
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missing_keys = set(('inventories', rev_id) for rev_id in parents)
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return graph.EmptySearchResult()
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elif self._last_revision is not None:
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return graph.NotInOtherForRevs(self.to_repository,
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self.from_repository, [self._last_revision],
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find_ghosts=self.find_ghosts).execute()
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else: # self._last_revision is None:
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return graph.EverythingNotInOther(self.to_repository,
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self.from_repository,
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find_ghosts=self.find_ghosts).execute()
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class Inter1and2Helper(object):
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selected_ids.append(parent_id)
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parent_keys = [(root_id, parent_id) for parent_id in selected_ids]
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return parent_keys
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class TargetRepoKinds(object):
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"""An enum-like set of constants.
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They are the possible values of FetchSpecFactory.target_repo_kinds.
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PREEXISTING = 'preexisting'
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class FetchSpecFactory(object):
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"""A helper for building the best fetch spec for a sprout call.
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Factors that go into determining the sort of fetch to perform:
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* did the caller specify any revision IDs?
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* did the caller specify a source branch (need to fetch its
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heads_to_fetch(), usually the tip + tags)
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* is there an existing target repo (don't need to refetch revs it
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* target is stacked? (similar to pre-existing target repo: even if
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the target itself is new don't want to refetch existing revs)
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:ivar source_branch: the source branch if one specified, else None.
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:ivar source_branch_stop_revision_id: fetch up to this revision of
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source_branch, rather than its tip.
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:ivar source_repo: the source repository if one found, else None.
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:ivar target_repo: the target repository acquired by sprout.
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:ivar target_repo_kind: one of the TargetRepoKinds constants.
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self._explicit_rev_ids = set()
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self.source_branch = None
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self.source_branch_stop_revision_id = None
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self.source_repo = None
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self.target_repo = None
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self.target_repo_kind = None
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def add_revision_ids(self, revision_ids):
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"""Add revision_ids to the set of revision_ids to be fetched."""
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self._explicit_rev_ids.update(revision_ids)
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def make_fetch_spec(self):
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"""Build a SearchResult or PendingAncestryResult or etc."""
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if self.target_repo_kind is None or self.source_repo is None:
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raise AssertionError(
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'Incomplete FetchSpecFactory: %r' % (self.__dict__,))
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if len(self._explicit_rev_ids) == 0 and self.source_branch is None:
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# Caller hasn't specified any revisions or source branch
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if self.target_repo_kind == TargetRepoKinds.EMPTY:
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return graph.EverythingResult(self.source_repo)
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# We want everything not already in the target (or target's
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return graph.EverythingNotInOther(
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self.target_repo, self.source_repo).execute()
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heads_to_fetch = set(self._explicit_rev_ids)
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if self.source_branch is not None:
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must_fetch, if_present_fetch = self.source_branch.heads_to_fetch()
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if self.source_branch_stop_revision_id is not None:
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# Replace the tip rev from must_fetch with the stop revision
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# XXX: this might be wrong if the tip rev is also in the
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# must_fetch set for other reasons (e.g. it's the tip of
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# multiple loom threads?), but then it's pretty unclear what it
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# should mean to specify a stop_revision in that case anyway.
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must_fetch.discard(self.source_branch.last_revision())
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must_fetch.add(self.source_branch_stop_revision_id)
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heads_to_fetch.update(must_fetch)
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if_present_fetch = set()
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if self.target_repo_kind == TargetRepoKinds.EMPTY:
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# PendingAncestryResult does not raise errors if a requested head
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# is absent. Ideally it would support the
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# required_ids/if_present_ids distinction, but in practice
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# heads_to_fetch will almost certainly be present so this doesn't
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all_heads = heads_to_fetch.union(if_present_fetch)
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return graph.PendingAncestryResult(all_heads, self.source_repo)
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return graph.NotInOtherForRevs(self.target_repo, self.source_repo,
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required_ids=heads_to_fetch, if_present_ids=if_present_fetch