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def get_summary(self):
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"""Get the first line of the log message for this revision.
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Return an empty string if message is None.
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return self.message.lstrip().split('\n', 1)[0]
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@symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((1, 13, 0)))
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def get_apparent_author(self):
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"""Return the apparent author of this revision.
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This method is deprecated in favour of get_apparent_authors.
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If the revision properties contain any author names,
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return the first. Otherwise return the committer name.
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authors = self.get_apparent_authors()
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def get_apparent_authors(self):
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"""Return the apparent authors of this revision.
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If the revision properties contain the names of the authors,
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return them. Otherwise return the committer name.
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The return value will be a list containing at least one element.
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authors = self.properties.get('authors', None)
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author = self.properties.get('author', self.committer)
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return authors.split("\n")
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"""Iterate over the bugs associated with this revision."""
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bug_property = self.properties.get('bugs', None)
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if bug_property is None:
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for line in bug_property.splitlines():
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url, status = line.split(None, 2)
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raise errors.InvalidLineInBugsProperty(line)
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if status not in bugtracker.ALLOWED_BUG_STATUSES:
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raise errors.InvalidBugStatus(status)
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return self.message.split('\n', 1)[0]
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def is_ancestor(revision_id, candidate_id, branch):
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"""Return true if candidate_id is an ancestor of revision_id.
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A false negative will be returned if any intermediate descendent of
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candidate_id is not present in any of the revision_sources.
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revisions_source is an object supporting a get_revision operation that
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behaves like Branch's.
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return (candidate_id in branch.repository.get_ancestry(revision_id))
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def iter_ancestors(revision_id, revision_source, only_present=False):
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if anc_id not in found_ancestors:
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found_ancestors[anc_id] = (anc_order, anc_distance)
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return found_ancestors
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def __get_closest(intersection):
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intersection.sort()
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for entry in intersection:
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if entry[0] == intersection[0][0]:
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matches.append(entry[2])
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def revision_graph(revision, revision_source):
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"""Produce a graph of the ancestry of the specified revision.
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:return: root, ancestors map, descendants map
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revision_source.lock_read()
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return _revision_graph(revision, revision_source)
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revision_source.unlock()
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def _revision_graph(revision, revision_source):
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"""See revision_graph."""
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from bzrlib.tsort import topo_sort
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graph = revision_source.get_revision_graph(revision)
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# mark all no-parent revisions as being NULL_REVISION parentage.
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for node, parents in graph.items():
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if len(parents) == 0:
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graph[node] = [NULL_REVISION]
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# add NULL_REVISION to the graph
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graph[NULL_REVISION] = []
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# pick a root. If there are multiple roots
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# this could pick a random one.
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topo_order = topo_sort(graph.items())
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# map the descendants of the graph.
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# and setup our set based return graph.
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for node in graph.keys():
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descendants[node] = {}
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for node, parents in graph.items():
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for parent in parents:
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descendants[parent][node] = 1
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ancestors[node] = set(parents)
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assert root not in descendants[root]
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assert root not in ancestors[root]
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return root, ancestors, descendants
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def combined_graph(revision_a, revision_b, revision_source):
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"""Produce a combined ancestry graph.
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Return graph root, ancestors map, descendants map, set of common nodes"""
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root, ancestors, descendants = revision_graph(
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revision_a, revision_source)
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root_b, ancestors_b, descendants_b = revision_graph(
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revision_b, revision_source)
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raise errors.NoCommonRoot(revision_a, revision_b)
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for node, node_anc in ancestors_b.iteritems():
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if node in ancestors:
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ancestors[node] = set()
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ancestors[node].update(node_anc)
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for node, node_dec in descendants_b.iteritems():
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if node not in descendants:
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descendants[node] = {}
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descendants[node].update(node_dec)
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return root, ancestors, descendants, common
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def common_ancestor(revision_a, revision_b, revision_source,
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if None in (revision_a, revision_b):
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if NULL_REVISION in (revision_a, revision_b):
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# trivial optimisation
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if revision_a == revision_b:
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pb.update('Picking ancestor', 1, 3)
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graph = revision_source.get_revision_graph_with_ghosts(
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[revision_a, revision_b])
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# Shortcut the case where one of the tips is already included in
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# the other graphs ancestry.
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ancestry_a = graph.get_ancestry(revision_a)
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if revision_b in ancestry_a:
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ancestry_b = graph.get_ancestry(revision_b)
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if revision_a in ancestry_b:
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# convert to a NULL_REVISION based graph.
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ancestors = graph.get_ancestors()
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descendants = graph.get_descendants()
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common = set(ancestry_a)
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common.intersection_update(ancestry_b)
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descendants[NULL_REVISION] = {}
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ancestors[NULL_REVISION] = []
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for root in graph.roots:
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descendants[NULL_REVISION][root] = 1
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ancestors[root].append(NULL_REVISION)
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for ghost in graph.ghosts:
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# ghosts act as roots for the purpose of finding
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# the longest paths from the root: any ghost *might*
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# be directly attached to the root, so we treat them
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# ghost now descends from NULL
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descendants[NULL_REVISION][ghost] = 1
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# that is it has an ancestor of NULL
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ancestors[ghost] = [NULL_REVISION]
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# ghost is common if any of ghosts descendants are common:
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for ghost_descendant in descendants[ghost]:
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if ghost_descendant in common:
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common.add(NULL_REVISION)
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except errors.NoCommonRoot:
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raise errors.NoCommonAncestor(revision_a, revision_b)
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pb.update('Picking ancestor', 2, 3)
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distances = node_distances (descendants, ancestors, root)
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pb.update('Picking ancestor', 3, 2)
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farthest = select_farthest(distances, common)
300
if farthest is None or farthest == NULL_REVISION:
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raise errors.NoCommonAncestor(revision_a, revision_b)
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class MultipleRevisionSources(object):
308
"""Proxy that looks in multiple branches for revisions."""
309
def __init__(self, *args):
310
object.__init__(self)
311
assert len(args) != 0
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self._revision_sources = args
314
def revision_parents(self, revision_id):
315
for source in self._revision_sources:
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return source.revision_parents(revision_id)
318
except (errors.WeaveRevisionNotPresent, errors.NoSuchRevision), e:
322
def get_revision(self, revision_id):
323
for source in self._revision_sources:
325
return source.get_revision(revision_id)
326
except errors.NoSuchRevision, e:
330
def get_revision_graph(self, revision_id):
331
# we could probe incrementally until the pending
332
# ghosts list stop growing, but its cheaper for now
333
# to just ask for the complete graph for each repository.
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for source in self._revision_sources:
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ghost_graph = source.get_revision_graph_with_ghosts()
337
graphs.append(ghost_graph)
340
if not revision_id in graph.get_ancestors():
342
if absent == len(graphs):
343
raise errors.NoSuchRevision(self._revision_sources[0], revision_id)
347
pending = set([revision_id])
348
def find_parents(node_id):
349
"""find the parents for node_id."""
351
ancestors = graph.get_ancestors()
353
return ancestors[node_id]
356
raise errors.NoSuchRevision(self._revision_sources[0], node_id)
358
# all the graphs should have identical parent lists
359
node_id = pending.pop()
361
result[node_id] = find_parents(node_id)
362
for parent_node in result[node_id]:
363
if not parent_node in result:
364
pending.add(parent_node)
365
except errors.NoSuchRevision:
370
def get_revision_graph_with_ghosts(self, revision_ids):
371
# query all the sources for their entire graphs
372
# and then build a combined graph for just
375
for source in self._revision_sources:
376
ghost_graph = source.get_revision_graph_with_ghosts()
377
graphs.append(ghost_graph.get_ancestors())
378
for revision_id in revision_ids:
381
if not revision_id in graph:
383
if absent == len(graphs):
384
raise errors.NoSuchRevision(self._revision_sources[0],
389
pending = set(revision_ids)
391
def find_parents(node_id):
392
"""find the parents for node_id."""
395
return graph[node_id]
398
raise errors.NoSuchRevision(self._revision_sources[0], node_id)
400
# all the graphs should have identical parent lists
401
node_id = pending.pop()
403
parents = find_parents(node_id)
404
for parent_node in parents:
406
if (parent_node not in pending and
407
parent_node not in done):
409
pending.add(parent_node)
410
result.add_node(node_id, parents)
412
except errors.NoSuchRevision:
414
result.add_ghost(node_id)
419
for source in self._revision_sources:
423
for source in self._revision_sources:
427
@deprecated_function(zero_eight)
428
def get_intervening_revisions(ancestor_id, rev_id, rev_source,
429
revision_history=None):
430
"""Find the longest line of descent from maybe_ancestor to revision.
431
Revision history is followed where possible.
433
If ancestor_id == rev_id, list will be empty.
434
Otherwise, rev_id will be the last entry. ancestor_id will never appear.
435
If ancestor_id is not an ancestor, NotAncestor will be thrown
437
root, ancestors, descendants = revision_graph(rev_id, rev_source)
438
if len(descendants) == 0:
439
raise errors.NoSuchRevision(rev_source, rev_id)
440
if ancestor_id not in descendants:
441
rev_source.get_revision(ancestor_id)
442
raise errors.NotAncestor(rev_id, ancestor_id)
443
root_descendants = all_descendants(descendants, ancestor_id)
444
root_descendants.add(ancestor_id)
445
if rev_id not in root_descendants:
446
raise errors.NotAncestor(rev_id, ancestor_id)
447
distances = node_distances(descendants, ancestors, ancestor_id,
448
root_descendants=root_descendants)
450
def best_ancestor(rev_id):
452
for anc_id in ancestors[rev_id]:
454
distance = distances[anc_id]
457
if revision_history is not None and anc_id in revision_history:
459
elif best is None or distance > best[1]:
460
best = (anc_id, distance)
465
while next != ancestor_id:
467
next = best_ancestor(next)
218
472
def is_reserved_id(revision_id):
219
473
"""Determine whether a revision id is reserved
221
:return: True if the revision is reserved, False otherwise
475
:return: True if the revision is is reserved, False otherwise
223
477
return isinstance(revision_id, basestring) and revision_id.endswith(':')