126
123
raise errors.UnstackableRepositoryFormat(self.repository._format,
127
124
self.repository.base)
129
def _extend_partial_history(self, stop_index=None, stop_revision=None):
130
"""Extend the partial history to include a given index
132
If a stop_index is supplied, stop when that index has been reached.
133
If a stop_revision is supplied, stop when that revision is
134
encountered. Otherwise, stop when the beginning of history is
137
:param stop_index: The index which should be present. When it is
138
present, history extension will stop.
139
:param stop_revision: The revision id which should be present. When
140
it is encountered, history extension will stop.
142
if len(self._partial_revision_history_cache) == 0:
143
self._partial_revision_history_cache = [self.last_revision()]
144
repository._iter_for_revno(
145
self.repository, self._partial_revision_history_cache,
146
stop_index=stop_index, stop_revision=stop_revision)
147
if self._partial_revision_history_cache[-1] == _mod_revision.NULL_REVISION:
148
self._partial_revision_history_cache.pop()
150
def _get_check_refs(self):
151
"""Get the references needed for check().
155
revid = self.last_revision()
156
return [('revision-existence', revid), ('lefthand-distance', revid)]
159
127
def open(base, _unsupported=False, possible_transports=None):
160
128
"""Open the branch rooted at base.
446
412
# start_revision_id.
447
413
if self._merge_sorted_revisions_cache is None:
448
414
last_revision = self.last_revision()
449
known_graph = self.repository.get_known_graph_ancestry(
451
self._merge_sorted_revisions_cache = known_graph.merge_sort(
415
graph = self.repository.get_graph()
416
parent_map = dict(((key, value) for key, value in
417
graph.iter_ancestry([last_revision]) if value is not None))
418
revision_graph = repository._strip_NULL_ghosts(parent_map)
419
revs = tsort.merge_sort(revision_graph, last_revision, None,
421
# Drop the sequence # before caching
422
self._merge_sorted_revisions_cache = [r[1:] for r in revs]
453
424
filtered = self._filter_merge_sorted_revisions(
454
425
self._merge_sorted_revisions_cache, start_revision_id,
455
426
stop_revision_id, stop_rule)
456
# Make sure we don't return revisions that are not part of the
457
# start_revision_id ancestry.
458
filtered = self._filter_start_non_ancestors(filtered)
459
427
if direction == 'reverse':
461
429
if direction == 'forward':
468
436
"""Iterate over an inclusive range of sorted revisions."""
469
437
rev_iter = iter(merge_sorted_revisions)
470
438
if start_revision_id is not None:
471
for node in rev_iter:
472
rev_id = node.key[-1]
439
for rev_id, depth, revno, end_of_merge in rev_iter:
473
440
if rev_id != start_revision_id:
476
443
# The decision to include the start or not
477
444
# depends on the stop_rule if a stop is provided
478
# so pop this node back into the iterator
479
rev_iter = chain(iter([node]), rev_iter)
446
iter([(rev_id, depth, revno, end_of_merge)]),
481
449
if stop_revision_id is None:
483
for node in rev_iter:
484
rev_id = node.key[-1]
485
yield (rev_id, node.merge_depth, node.revno,
450
for rev_id, depth, revno, end_of_merge in rev_iter:
451
yield rev_id, depth, revno, end_of_merge
487
452
elif stop_rule == 'exclude':
488
for node in rev_iter:
489
rev_id = node.key[-1]
453
for rev_id, depth, revno, end_of_merge in rev_iter:
490
454
if rev_id == stop_revision_id:
492
yield (rev_id, node.merge_depth, node.revno,
456
yield rev_id, depth, revno, end_of_merge
494
457
elif stop_rule == 'include':
495
for node in rev_iter:
496
rev_id = node.key[-1]
497
yield (rev_id, node.merge_depth, node.revno,
458
for rev_id, depth, revno, end_of_merge in rev_iter:
459
yield rev_id, depth, revno, end_of_merge
499
460
if rev_id == stop_revision_id:
501
elif stop_rule == 'with-merges-without-common-ancestry':
502
# We want to exclude all revisions that are already part of the
503
# stop_revision_id ancestry.
504
graph = self.repository.get_graph()
505
ancestors = graph.find_unique_ancestors(start_revision_id,
507
for node in rev_iter:
508
rev_id = node.key[-1]
509
if rev_id not in ancestors:
511
yield (rev_id, node.merge_depth, node.revno,
513
462
elif stop_rule == 'with-merges':
514
463
stop_rev = self.repository.get_revision(stop_revision_id)
515
464
if stop_rev.parent_ids:
516
465
left_parent = stop_rev.parent_ids[0]
518
467
left_parent = _mod_revision.NULL_REVISION
519
# left_parent is the actual revision we want to stop logging at,
520
# since we want to show the merged revisions after the stop_rev too
521
reached_stop_revision_id = False
522
revision_id_whitelist = []
523
for node in rev_iter:
524
rev_id = node.key[-1]
468
for rev_id, depth, revno, end_of_merge in rev_iter:
525
469
if rev_id == left_parent:
526
# reached the left parent after the stop_revision
528
if (not reached_stop_revision_id or
529
rev_id in revision_id_whitelist):
530
yield (rev_id, node.merge_depth, node.revno,
532
if reached_stop_revision_id or rev_id == stop_revision_id:
533
# only do the merged revs of rev_id from now on
534
rev = self.repository.get_revision(rev_id)
536
reached_stop_revision_id = True
537
revision_id_whitelist.extend(rev.parent_ids)
471
yield rev_id, depth, revno, end_of_merge
539
473
raise ValueError('invalid stop_rule %r' % stop_rule)
541
def _filter_start_non_ancestors(self, rev_iter):
542
# If we started from a dotted revno, we want to consider it as a tip
543
# and don't want to yield revisions that are not part of its
544
# ancestry. Given the order guaranteed by the merge sort, we will see
545
# uninteresting descendants of the first parent of our tip before the
547
first = rev_iter.next()
548
(rev_id, merge_depth, revno, end_of_merge) = first
551
# We start at a mainline revision so by definition, all others
552
# revisions in rev_iter are ancestors
553
for node in rev_iter:
558
pmap = self.repository.get_parent_map([rev_id])
559
parents = pmap.get(rev_id, [])
561
whitelist.update(parents)
563
# If there is no parents, there is nothing of interest left
565
# FIXME: It's hard to test this scenario here as this code is never
566
# called in that case. -- vila 20100322
569
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
571
if rev_id in whitelist:
572
pmap = self.repository.get_parent_map([rev_id])
573
parents = pmap.get(rev_id, [])
574
whitelist.remove(rev_id)
575
whitelist.update(parents)
577
# We've reached the mainline, there is nothing left to
581
# A revision that is not part of the ancestry of our
584
yield (rev_id, merge_depth, revno, end_of_merge)
586
475
def leave_lock_in_place(self):
587
476
"""Tell this branch object not to release the physical lock when this
588
477
object is unlocked.
758
625
except (errors.NotStacked, errors.UnstackableBranchFormat,
759
626
errors.UnstackableRepositoryFormat):
629
# repositories don't offer an interface to remove fallback
630
# repositories today; take the conceptually simpler option and just
632
self.repository = self.bzrdir.find_repository()
633
# for every revision reference the branch has, ensure it is pulled
635
source_repository = self._get_fallback_repository(old_url)
636
for revision_id in chain([self.last_revision()],
637
self.tags.get_reverse_tag_dict()):
638
self.repository.fetch(source_repository, revision_id,
763
641
self._activate_fallback_location(url)
764
642
# write this out after the repository is stacked to avoid setting a
765
643
# stacked config that doesn't work.
766
644
self._set_config_location('stacked_on_location', url)
769
"""Change a branch to be unstacked, copying data as needed.
771
Don't call this directly, use set_stacked_on_url(None).
773
pb = ui.ui_factory.nested_progress_bar()
775
pb.update("Unstacking")
776
# The basic approach here is to fetch the tip of the branch,
777
# including all available ghosts, from the existing stacked
778
# repository into a new repository object without the fallbacks.
780
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
781
# correct for CHKMap repostiories
782
old_repository = self.repository
783
if len(old_repository._fallback_repositories) != 1:
784
raise AssertionError("can't cope with fallback repositories "
785
"of %r" % (self.repository,))
786
# unlock it, including unlocking the fallback
787
old_repository.unlock()
788
old_repository.lock_read()
790
# Repositories don't offer an interface to remove fallback
791
# repositories today; take the conceptually simpler option and just
792
# reopen it. We reopen it starting from the URL so that we
793
# get a separate connection for RemoteRepositories and can
794
# stream from one of them to the other. This does mean doing
795
# separate SSH connection setup, but unstacking is not a
796
# common operation so it's tolerable.
797
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
798
new_repository = new_bzrdir.find_repository()
799
self.repository = new_repository
800
if self.repository._fallback_repositories:
801
raise AssertionError("didn't expect %r to have "
802
"fallback_repositories"
803
% (self.repository,))
804
# this is not paired with an unlock because it's just restoring
805
# the previous state; the lock's released when set_stacked_on_url
807
self.repository.lock_write()
808
# XXX: If you unstack a branch while it has a working tree
809
# with a pending merge, the pending-merged revisions will no
810
# longer be present. You can (probably) revert and remerge.
812
# XXX: This only fetches up to the tip of the repository; it
813
# doesn't bring across any tags. That's fairly consistent
814
# with how branch works, but perhaps not ideal.
815
self.repository.fetch(old_repository,
816
revision_id=self.last_revision(),
819
old_repository.unlock()
823
647
def _set_tags_bytes(self, bytes):
824
648
"""Mirror method for _get_tags_bytes.
991
817
except ValueError:
992
818
raise errors.NoSuchRevision(self, revision_id)
995
820
def get_rev_id(self, revno, history=None):
996
821
"""Find the revision id of the specified revno."""
998
823
return _mod_revision.NULL_REVISION
999
last_revno, last_revid = self.last_revision_info()
1000
if revno == last_revno:
1002
if revno <= 0 or revno > last_revno:
825
history = self.revision_history()
826
if revno <= 0 or revno > len(history):
1003
827
raise errors.NoSuchRevision(self, revno)
1004
distance_from_last = last_revno - revno
1005
if len(self._partial_revision_history_cache) <= distance_from_last:
1006
self._extend_partial_history(distance_from_last)
1007
return self._partial_revision_history_cache[distance_from_last]
828
return history[revno - 1]
1010
830
def pull(self, source, overwrite=False, stop_revision=None,
1011
possible_transports=None, *args, **kwargs):
831
possible_transports=None, _override_hook_target=None):
1012
832
"""Mirror source into this branch.
1014
834
This branch is considered to be 'local', having low latency.
1016
836
:returns: PullResult instance
1018
return InterBranch.get(source, self).pull(overwrite=overwrite,
1019
stop_revision=stop_revision,
1020
possible_transports=possible_transports, *args, **kwargs)
838
raise NotImplementedError(self.pull)
1022
def push(self, target, overwrite=False, stop_revision=None, *args,
840
def push(self, target, overwrite=False, stop_revision=None):
1024
841
"""Mirror this branch into target.
1026
843
This branch is considered to be 'local', having low latency.
1028
return InterBranch.get(self, target).push(overwrite, stop_revision,
1031
def lossy_push(self, target, stop_revision=None):
1032
"""Push deltas into another branch.
1034
:note: This does not, like push, retain the revision ids from
1035
the source branch and will, rather than adding bzr-specific
1036
metadata, push only those semantics of the revision that can be
1037
natively represented by this branch' VCS.
1039
:param target: Target branch
1040
:param stop_revision: Revision to push, defaults to last revision.
1041
:return: BranchPushResult with an extra member revidmap:
1042
A dictionary mapping revision ids from the target branch
1043
to new revision ids in the target branch, for each
1044
revision that was pushed.
1046
inter = InterBranch.get(self, target)
1047
lossy_push = getattr(inter, "lossy_push", None)
1048
if lossy_push is None:
1049
raise errors.LossyPushToSameVCS(self, target)
1050
return lossy_push(stop_revision)
845
raise NotImplementedError(self.push)
1052
847
def basis_tree(self):
1053
848
"""Return `Tree` object for last revision."""
1245
1033
source_revno, source_revision_id = self.last_revision_info()
1246
1034
if revision_id is None:
1247
1035
revno, revision_id = source_revno, source_revision_id
1036
elif source_revision_id == revision_id:
1037
# we know the revno without needing to walk all of history
1038
revno = source_revno
1249
graph = self.repository.get_graph()
1251
revno = graph.find_distance_to_null(revision_id,
1252
[(source_revision_id, source_revno)])
1253
except errors.GhostRevisionsHaveNoRevno:
1254
# Default to 1, if we can't find anything else
1040
# To figure out the revno for a random revision, we need to build
1041
# the revision history, and count its length.
1042
# We don't care about the order, just how long it is.
1043
# Alternatively, we could start at the current location, and count
1044
# backwards. But there is no guarantee that we will find it since
1045
# it may be a merged revision.
1046
revno = len(list(self.repository.iter_reverse_revision_history(
1256
1048
destination.set_last_revision_info(revno, revision_id)
1258
1050
@needs_read_lock
1302
1076
Callers will typically also want to check the repository.
1304
:param refs: Calculated refs for this branch as specified by
1305
branch._get_check_refs()
1306
1078
:return: A BranchCheckResult.
1308
result = BranchCheckResult(self)
1080
mainline_parent_id = None
1309
1081
last_revno, last_revision_id = self.last_revision_info()
1310
actual_revno = refs[('lefthand-distance', last_revision_id)]
1311
if actual_revno != last_revno:
1312
result.errors.append(errors.BzrCheckError(
1313
'revno does not match len(mainline) %s != %s' % (
1314
last_revno, actual_revno)))
1315
# TODO: We should probably also check that self.revision_history
1316
# matches the repository for older branch formats.
1317
# If looking for the code that cross-checks repository parents against
1318
# the iter_reverse_revision_history output, that is now a repository
1082
real_rev_history = list(self.repository.iter_reverse_revision_history(
1084
real_rev_history.reverse()
1085
if len(real_rev_history) != last_revno:
1086
raise errors.BzrCheckError('revno does not match len(mainline)'
1087
' %s != %s' % (last_revno, len(real_rev_history)))
1088
# TODO: We should probably also check that real_rev_history actually
1089
# matches self.revision_history()
1090
for revision_id in real_rev_history:
1092
revision = self.repository.get_revision(revision_id)
1093
except errors.NoSuchRevision, e:
1094
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1096
# In general the first entry on the revision history has no parents.
1097
# But it's not illegal for it to have parents listed; this can happen
1098
# in imports from Arch when the parents weren't reachable.
1099
if mainline_parent_id is not None:
1100
if mainline_parent_id not in revision.parent_ids:
1101
raise errors.BzrCheckError("previous revision {%s} not listed among "
1103
% (mainline_parent_id, revision_id))
1104
mainline_parent_id = revision_id
1105
return BranchCheckResult(self)
1322
1107
def _get_checkout_format(self):
1323
1108
"""Return the most suitable metadir for a checkout of this branch.
1335
1120
def create_clone_on_transport(self, to_transport, revision_id=None,
1336
stacked_on=None, create_prefix=False, use_existing_dir=False):
1337
1122
"""Create a clone of this branch and its bzrdir.
1339
1124
:param to_transport: The transport to clone onto.
1340
1125
:param revision_id: The revision id to use as tip in the new branch.
1341
1126
If None the tip is obtained from this branch.
1342
1127
:param stacked_on: An optional URL to stack the clone on.
1343
:param create_prefix: Create any missing directories leading up to
1345
:param use_existing_dir: Use an existing directory if one exists.
1347
1129
# XXX: Fix the bzrdir API to allow getting the branch back from the
1348
1130
# clone call. Or something. 20090224 RBC/spiv.
1349
if revision_id is None:
1350
revision_id = self.last_revision()
1351
1131
dir_to = self.bzrdir.clone_on_transport(to_transport,
1352
revision_id=revision_id, stacked_on=stacked_on,
1353
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1132
revision_id=revision_id, stacked_on=stacked_on)
1354
1133
return dir_to.open_branch()
1356
1135
def create_checkout(self, to_location, revision_id=None,
1411
1189
reconciler.reconcile()
1412
1190
return reconciler
1414
def reference_parent(self, file_id, path, possible_transports=None):
1192
def reference_parent(self, file_id, path):
1415
1193
"""Return the parent branch for a tree-reference file_id
1416
1194
:param file_id: The file_id of the tree reference
1417
1195
:param path: The path of the file_id in the tree
1418
1196
:return: A branch associated with the file_id
1420
1198
# FIXME should provide multiple branches, based on config
1421
return Branch.open(self.bzrdir.root_transport.clone(path).base,
1422
possible_transports=possible_transports)
1199
return Branch.open(self.bzrdir.root_transport.clone(path).base)
1424
1201
def supports_tags(self):
1425
1202
return self._format.supports_tags()
1427
def automatic_tag_name(self, revision_id):
1428
"""Try to automatically find the tag name for a revision.
1430
:param revision_id: Revision id of the revision.
1431
:return: A tag name or None if no tag name could be determined.
1433
for hook in Branch.hooks['automatic_tag_name']:
1434
ret = hook(self, revision_id)
1439
1204
def _check_if_descendant_or_diverged(self, revision_a, revision_b, graph,
1441
1206
"""Ensure that revision_b is a descendant of revision_a.
1554
1317
"""Return the short format description for this format."""
1555
1318
raise NotImplementedError(self.get_format_description)
1557
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1558
hooks = Branch.hooks['post_branch_init']
1561
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1565
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1566
lock_type='metadir', set_format=True):
1320
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1567
1322
"""Initialize a branch in a bzrdir, with specified files
1569
1324
:param a_bzrdir: The bzrdir to initialize the branch in
1570
1325
:param utf8_files: The files to create as a list of
1571
1326
(filename, content) tuples
1572
:param name: Name of colocated branch to create, if any
1573
1327
:param set_format: If True, set the format with
1574
1328
self.get_format_string. (BzrBranch4 has its format set
1576
1330
:return: a branch in this format
1578
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1579
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1332
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1333
branch_transport = a_bzrdir.get_branch_transport(self)
1581
1335
'metadir': ('lock', lockdir.LockDir),
1582
1336
'branch4': ('branch-lock', lockable_files.TransportLock),
1765
1501
"multiple hooks installed for transform_fallback_location, "
1766
1502
"all are called with the url returned from the previous hook."
1767
1503
"The order is however undefined.", (1, 9), None))
1768
self.create_hook(HookPoint('automatic_tag_name',
1769
"Called to determine an automatic tag name for a revision."
1770
"automatic_tag_name is called with (branch, revision_id) and "
1771
"should return a tag name or None if no tag name could be "
1772
"determined. The first non-None tag name returned will be used.",
1774
self.create_hook(HookPoint('post_branch_init',
1775
"Called after new branch initialization completes. "
1776
"post_branch_init is called with a "
1777
"bzrlib.branch.BranchInitHookParams. "
1778
"Note that init, branch and checkout (both heavyweight and "
1779
"lightweight) will all trigger this hook.", (2, 2), None))
1780
self.create_hook(HookPoint('post_switch',
1781
"Called after a checkout switches branch. "
1782
"post_switch is called with a "
1783
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1787
1506
# install the default hooks into the Branch class.
1826
1545
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1829
class BranchInitHookParams(object):
1830
"""Object holding parameters passed to *_branch_init hooks.
1832
There are 4 fields that hooks may wish to access:
1834
:ivar format: the branch format
1835
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1836
:ivar name: name of colocated branch, if any (or None)
1837
:ivar branch: the branch created
1839
Note that for lightweight checkouts, the bzrdir and format fields refer to
1840
the checkout, hence they are different from the corresponding fields in
1841
branch, which refer to the original branch.
1844
def __init__(self, format, a_bzrdir, name, branch):
1845
"""Create a group of BranchInitHook parameters.
1847
:param format: the branch format
1848
:param a_bzrdir: the BzrDir where the branch will be/has been
1850
:param name: name of colocated branch, if any (or None)
1851
:param branch: the branch created
1853
Note that for lightweight checkouts, the bzrdir and format fields refer
1854
to the checkout, hence they are different from the corresponding fields
1855
in branch, which refer to the original branch.
1857
self.format = format
1858
self.bzrdir = a_bzrdir
1860
self.branch = branch
1862
def __eq__(self, other):
1863
return self.__dict__ == other.__dict__
1867
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1869
return "<%s of format:%s bzrdir:%s>" % (
1870
self.__class__.__name__, self.branch,
1871
self.format, self.bzrdir)
1874
class SwitchHookParams(object):
1875
"""Object holding parameters passed to *_switch hooks.
1877
There are 4 fields that hooks may wish to access:
1879
:ivar control_dir: BzrDir of the checkout to change
1880
:ivar to_branch: branch that the checkout is to reference
1881
:ivar force: skip the check for local commits in a heavy checkout
1882
:ivar revision_id: revision ID to switch to (or None)
1885
def __init__(self, control_dir, to_branch, force, revision_id):
1886
"""Create a group of SwitchHook parameters.
1888
:param control_dir: BzrDir of the checkout to change
1889
:param to_branch: branch that the checkout is to reference
1890
:param force: skip the check for local commits in a heavy checkout
1891
:param revision_id: revision ID to switch to (or None)
1893
self.control_dir = control_dir
1894
self.to_branch = to_branch
1896
self.revision_id = revision_id
1898
def __eq__(self, other):
1899
return self.__dict__ == other.__dict__
1902
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1903
self.control_dir, self.to_branch,
1907
1548
class BzrBranchFormat4(BranchFormat):
1908
1549
"""Bzr branch format 4.
1962
1602
return self.get_format_string()
1964
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1604
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1965
1605
"""See BranchFormat.open()."""
1967
format = BranchFormat.find_format(a_bzrdir, name=name)
1607
format = BranchFormat.find_format(a_bzrdir)
1968
1608
if format.__class__ != self.__class__:
1969
1609
raise AssertionError("wrong format %r found for %r" %
1970
1610
(format, self))
1971
transport = a_bzrdir.get_branch_transport(None, name=name)
1612
transport = a_bzrdir.get_branch_transport(None)
1973
1613
control_files = lockable_files.LockableFiles(transport, 'lock',
1974
1614
lockdir.LockDir)
1975
1615
return self._branch_class()(_format=self,
1976
1616
_control_files=control_files,
1978
1617
a_bzrdir=a_bzrdir,
1979
1618
_repository=a_bzrdir.find_repository(),
1980
1619
ignore_fallbacks=ignore_fallbacks)
1981
1620
except errors.NoSuchFile:
1982
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1621
raise errors.NotBranchError(path=transport.base)
1984
1623
def __init__(self):
1985
1624
super(BranchFormatMetadir, self).__init__()
2047
1686
"""See BranchFormat.get_format_description()."""
2048
1687
return "Branch format 6"
2050
def initialize(self, a_bzrdir, name=None):
2051
"""Create a branch of this format in a_bzrdir."""
2052
utf8_files = [('last-revision', '0 null:\n'),
2053
('branch.conf', ''),
2056
return self._initialize_helper(a_bzrdir, utf8_files, name)
2058
def make_tags(self, branch):
2059
"""See bzrlib.branch.BranchFormat.make_tags()."""
2060
return BasicTags(branch)
2062
def supports_set_append_revisions_only(self):
2066
class BzrBranchFormat8(BranchFormatMetadir):
2067
"""Metadir format supporting storing locations of subtree branches."""
2069
def _branch_class(self):
2072
def get_format_string(self):
2073
"""See BranchFormat.get_format_string()."""
2074
return "Bazaar Branch Format 8 (needs bzr 1.15)\n"
2076
def get_format_description(self):
2077
"""See BranchFormat.get_format_description()."""
2078
return "Branch format 8"
2080
def initialize(self, a_bzrdir, name=None):
2081
"""Create a branch of this format in a_bzrdir."""
2082
utf8_files = [('last-revision', '0 null:\n'),
2083
('branch.conf', ''),
2087
return self._initialize_helper(a_bzrdir, utf8_files, name)
2090
super(BzrBranchFormat8, self).__init__()
2091
self._matchingbzrdir.repository_format = \
2092
RepositoryFormatKnitPack5RichRoot()
2094
def make_tags(self, branch):
2095
"""See bzrlib.branch.BranchFormat.make_tags()."""
2096
return BasicTags(branch)
2098
def supports_set_append_revisions_only(self):
2101
def supports_stacking(self):
2104
supports_reference_locations = True
2107
class BzrBranchFormat7(BzrBranchFormat8):
1689
def initialize(self, a_bzrdir):
1690
"""Create a branch of this format in a_bzrdir."""
1691
utf8_files = [('last-revision', '0 null:\n'),
1692
('branch.conf', ''),
1695
return self._initialize_helper(a_bzrdir, utf8_files)
1697
def make_tags(self, branch):
1698
"""See bzrlib.branch.BranchFormat.make_tags()."""
1699
return BasicTags(branch)
1703
class BzrBranchFormat7(BranchFormatMetadir):
2108
1704
"""Branch format with last-revision, tags, and a stacked location pointer.
2110
1706
The stacked location pointer is passed down to the repository and requires
2160
1763
def get_reference(self, a_bzrdir):
2161
1764
"""See BranchFormat.get_reference()."""
2162
1765
transport = a_bzrdir.get_branch_transport(None)
2163
return transport.get_bytes('location')
1766
return transport.get('location').read()
2165
1768
def set_reference(self, a_bzrdir, to_branch):
2166
1769
"""See BranchFormat.set_reference()."""
2167
1770
transport = a_bzrdir.get_branch_transport(None)
2168
1771
location = transport.put_bytes('location', to_branch.base)
2170
def initialize(self, a_bzrdir, name=None, target_branch=None):
1773
def initialize(self, a_bzrdir, target_branch=None):
2171
1774
"""Create a branch of this format in a_bzrdir."""
2172
1775
if target_branch is None:
2173
1776
# this format does not implement branch itself, thus the implicit
2174
1777
# creation contract must see it as uninitializable
2175
1778
raise errors.UninitializableFormat(self)
2176
mutter('creating branch reference in %s', a_bzrdir.user_url)
2177
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1779
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1780
branch_transport = a_bzrdir.get_branch_transport(self)
2178
1781
branch_transport.put_bytes('location',
2179
target_branch.bzrdir.user_url)
1782
target_branch.bzrdir.root_transport.base)
2180
1783
branch_transport.put_bytes('format', self.get_format_string())
2182
a_bzrdir, name, _found=True,
1785
a_bzrdir, _found=True,
2183
1786
possible_transports=[target_branch.bzrdir.root_transport])
2184
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2187
1788
def __init__(self):
2188
1789
super(BranchReferenceFormat, self).__init__()
2194
1795
def clone(to_bzrdir, revision_id=None,
2195
1796
repository_policy=None):
2196
1797
"""See Branch.clone()."""
2197
return format.initialize(to_bzrdir, target_branch=a_branch)
1798
return format.initialize(to_bzrdir, a_branch)
2198
1799
# cannot obey revision_id limits when cloning a reference ...
2199
1800
# FIXME RBC 20060210 either nuke revision_id for clone, or
2200
1801
# emit some sort of warning/error to the caller ?!
2203
def open(self, a_bzrdir, name=None, _found=False, location=None,
1804
def open(self, a_bzrdir, _found=False, location=None,
2204
1805
possible_transports=None, ignore_fallbacks=False):
2205
1806
"""Return the branch that the branch reference in a_bzrdir points at.
2207
1808
:param a_bzrdir: A BzrDir that contains a branch.
2208
:param name: Name of colocated branch to open, if any
2209
1809
:param _found: a private parameter, do not use it. It is used to
2210
1810
indicate if format probing has already be done.
2211
1811
:param ignore_fallbacks: when set, no fallback branches will be opened
2324
1914
return self.control_files.is_locked()
2326
1916
def lock_write(self, token=None):
2327
if not self.is_locked():
2328
self._note_lock('w')
2329
# All-in-one needs to always unlock/lock.
2330
repo_control = getattr(self.repository, 'control_files', None)
2331
if self.control_files == repo_control or not self.is_locked():
2332
self.repository._warn_if_deprecated(self)
2333
self.repository.lock_write()
1917
repo_token = self.repository.lock_write()
2338
return self.control_files.lock_write(token=token)
1919
token = self.control_files.lock_write(token=token)
2341
self.repository.unlock()
1921
self.repository.unlock()
2344
1925
def lock_read(self):
2345
if not self.is_locked():
2346
self._note_lock('r')
2347
# All-in-one needs to always unlock/lock.
2348
repo_control = getattr(self.repository, 'control_files', None)
2349
if self.control_files == repo_control or not self.is_locked():
2350
self.repository._warn_if_deprecated(self)
2351
self.repository.lock_read()
1926
self.repository.lock_read()
2356
1928
self.control_files.lock_read()
2359
self.repository.unlock()
1930
self.repository.unlock()
2362
@only_raises(errors.LockNotHeld, errors.LockBroken)
2363
1933
def unlock(self):
1934
# TODO: test for failed two phase locks. This is known broken.
2365
1936
self.control_files.unlock()
2367
# All-in-one needs to always unlock/lock.
2368
repo_control = getattr(self.repository, 'control_files', None)
2369
if (self.control_files == repo_control or
2370
not self.control_files.is_locked()):
2371
self.repository.unlock()
2372
if not self.control_files.is_locked():
2373
# we just released the lock
2374
self._clear_cached_state()
1938
self.repository.unlock()
1939
if not self.control_files.is_locked():
1940
# we just released the lock
1941
self._clear_cached_state()
2376
1943
def peek_lock_mode(self):
2377
1944
if self.control_files._lock_count == 0:
2496
2063
"""See Branch.basis_tree."""
2497
2064
return self.repository.revision_tree(self.last_revision())
2067
def pull(self, source, overwrite=False, stop_revision=None,
2068
_hook_master=None, run_hooks=True, possible_transports=None,
2069
_override_hook_target=None):
2072
:param _hook_master: Private parameter - set the branch to
2073
be supplied as the master to pull hooks.
2074
:param run_hooks: Private parameter - if false, this branch
2075
is being called because it's the master of the primary branch,
2076
so it should not run its hooks.
2077
:param _override_hook_target: Private parameter - set the branch to be
2078
supplied as the target_branch to pull hooks.
2080
result = PullResult()
2081
result.source_branch = source
2082
if _override_hook_target is None:
2083
result.target_branch = self
2085
result.target_branch = _override_hook_target
2088
# We assume that during 'pull' the local repository is closer than
2090
graph = self.repository.get_graph(source.repository)
2091
result.old_revno, result.old_revid = self.last_revision_info()
2092
self.update_revisions(source, stop_revision, overwrite=overwrite,
2094
result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
2095
result.new_revno, result.new_revid = self.last_revision_info()
2097
result.master_branch = _hook_master
2098
result.local_branch = result.target_branch
2100
result.master_branch = result.target_branch
2101
result.local_branch = None
2103
for hook in Branch.hooks['post_pull']:
2499
2109
def _get_parent_location(self):
2500
2110
_locs = ['parent', 'pull', 'x-pull']
2501
2111
for l in _locs:
2119
def push(self, target, overwrite=False, stop_revision=None,
2120
_override_hook_source_branch=None):
2123
This is the basic concrete implementation of push()
2125
:param _override_hook_source_branch: If specified, run
2126
the hooks passing this Branch as the source, rather than self.
2127
This is for use of RemoteBranch, where push is delegated to the
2128
underlying vfs-based Branch.
2130
# TODO: Public option to disable running hooks - should be trivial but
2132
return _run_with_write_locked_target(
2133
target, self._push_with_bound_branches, target, overwrite,
2135
_override_hook_source_branch=_override_hook_source_branch)
2137
def _push_with_bound_branches(self, target, overwrite,
2139
_override_hook_source_branch=None):
2140
"""Push from self into target, and into target's master if any.
2142
This is on the base BzrBranch class even though it doesn't support
2143
bound branches because the *target* might be bound.
2146
if _override_hook_source_branch:
2147
result.source_branch = _override_hook_source_branch
2148
for hook in Branch.hooks['post_push']:
2151
bound_location = target.get_bound_location()
2152
if bound_location and target.base != bound_location:
2153
# there is a master branch.
2155
# XXX: Why the second check? Is it even supported for a branch to
2156
# be bound to itself? -- mbp 20070507
2157
master_branch = target.get_master_branch()
2158
master_branch.lock_write()
2160
# push into the master from this branch.
2161
self._basic_push(master_branch, overwrite, stop_revision)
2162
# and push into the target branch from this. Note that we push from
2163
# this branch again, because its considered the highest bandwidth
2165
result = self._basic_push(target, overwrite, stop_revision)
2166
result.master_branch = master_branch
2167
result.local_branch = target
2171
master_branch.unlock()
2174
result = self._basic_push(target, overwrite, stop_revision)
2175
# TODO: Why set master_branch and local_branch if there's no
2176
# binding? Maybe cleaner to just leave them unset? -- mbp
2178
result.master_branch = target
2179
result.local_branch = None
2508
2183
def _basic_push(self, target, overwrite, stop_revision):
2509
2184
"""Basic implementation of push without bound branches or hooks.
2511
Must be called with source read locked and target write locked.
2186
Must be called with self read locked and target write locked.
2513
2188
result = BranchPushResult()
2514
2189
result.source_branch = self
2515
2190
result.target_branch = target
2516
2191
result.old_revno, result.old_revid = target.last_revision_info()
2517
self.update_references(target)
2518
2192
if result.old_revid != self.last_revision():
2519
2193
# We assume that during 'push' this repository is closer than
2521
2195
graph = self.repository.get_graph(target.repository)
2522
target.update_revisions(self, stop_revision,
2523
overwrite=overwrite, graph=graph)
2196
target.update_revisions(self, stop_revision, overwrite=overwrite,
2524
2198
if self._push_should_merge_tags():
2525
result.tag_conflicts = self.tags.merge_to(target.tags,
2199
result.tag_conflicts = self.tags.merge_to(target.tags, overwrite)
2527
2200
result.new_revno, result.new_revid = target.last_revision_info()
2530
2203
def get_stacked_on_url(self):
2531
raise errors.UnstackableBranchFormat(self._format, self.user_url)
2204
raise errors.UnstackableBranchFormat(self._format, self.base)
2533
2206
def set_push_location(self, location):
2534
2207
"""See Branch.set_push_location."""
2550
2223
It has support for a master_branch which is the data for bound branches.
2227
def pull(self, source, overwrite=False, stop_revision=None,
2228
run_hooks=True, possible_transports=None,
2229
_override_hook_target=None):
2230
"""Pull from source into self, updating my master if any.
2232
:param run_hooks: Private parameter - if false, this branch
2233
is being called because it's the master of the primary branch,
2234
so it should not run its hooks.
2236
bound_location = self.get_bound_location()
2237
master_branch = None
2238
if bound_location and source.base != bound_location:
2239
# not pulling from master, so we need to update master.
2240
master_branch = self.get_master_branch(possible_transports)
2241
master_branch.lock_write()
2244
# pull from source into master.
2245
master_branch.pull(source, overwrite, stop_revision,
2247
return super(BzrBranch5, self).pull(source, overwrite,
2248
stop_revision, _hook_master=master_branch,
2249
run_hooks=run_hooks,
2250
_override_hook_target=_override_hook_target)
2253
master_branch.unlock()
2553
2255
def get_bound_location(self):
2555
2257
return self._transport.get_bytes('bound')[:-1]
2733
2435
self._extend_partial_history(stop_index=last_revno-1)
2734
2436
return list(reversed(self._partial_revision_history_cache))
2438
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2439
"""Extend the partial history to include a given index
2441
If a stop_index is supplied, stop when that index has been reached.
2442
If a stop_revision is supplied, stop when that revision is
2443
encountered. Otherwise, stop when the beginning of history is
2446
:param stop_index: The index which should be present. When it is
2447
present, history extension will stop.
2448
:param revision_id: The revision id which should be present. When
2449
it is encountered, history extension will stop.
2451
repo = self.repository
2452
if len(self._partial_revision_history_cache) == 0:
2453
iterator = repo.iter_reverse_revision_history(self.last_revision())
2455
start_revision = self._partial_revision_history_cache[-1]
2456
iterator = repo.iter_reverse_revision_history(start_revision)
2457
#skip the last revision in the list
2458
next_revision = iterator.next()
2459
for revision_id in iterator:
2460
self._partial_revision_history_cache.append(revision_id)
2461
if (stop_index is not None and
2462
len(self._partial_revision_history_cache) > stop_index):
2464
if revision_id == stop_revision:
2736
2467
def _write_revision_history(self, history):
2737
2468
"""Factored out of set_revision_history.
2759
2490
"""Set the parent branch"""
2760
2491
return self._get_config_location('parent_location')
2763
def _set_all_reference_info(self, info_dict):
2764
"""Replace all reference info stored in a branch.
2766
:param info_dict: A dict of {file_id: (tree_path, branch_location)}
2769
writer = rio.RioWriter(s)
2770
for key, (tree_path, branch_location) in info_dict.iteritems():
2771
stanza = rio.Stanza(file_id=key, tree_path=tree_path,
2772
branch_location=branch_location)
2773
writer.write_stanza(stanza)
2774
self._transport.put_bytes('references', s.getvalue())
2775
self._reference_info = info_dict
2778
def _get_all_reference_info(self):
2779
"""Return all the reference info stored in a branch.
2781
:return: A dict of {file_id: (tree_path, branch_location)}
2783
if self._reference_info is not None:
2784
return self._reference_info
2785
rio_file = self._transport.get('references')
2787
stanzas = rio.read_stanzas(rio_file)
2788
info_dict = dict((s['file_id'], (s['tree_path'],
2789
s['branch_location'])) for s in stanzas)
2792
self._reference_info = info_dict
2795
def set_reference_info(self, file_id, tree_path, branch_location):
2796
"""Set the branch location to use for a tree reference.
2798
:param file_id: The file-id of the tree reference.
2799
:param tree_path: The path of the tree reference in the tree.
2800
:param branch_location: The location of the branch to retrieve tree
2803
info_dict = self._get_all_reference_info()
2804
info_dict[file_id] = (tree_path, branch_location)
2805
if None in (tree_path, branch_location):
2806
if tree_path is not None:
2807
raise ValueError('tree_path must be None when branch_location'
2809
if branch_location is not None:
2810
raise ValueError('branch_location must be None when tree_path'
2812
del info_dict[file_id]
2813
self._set_all_reference_info(info_dict)
2815
def get_reference_info(self, file_id):
2816
"""Get the tree_path and branch_location for a tree reference.
2818
:return: a tuple of (tree_path, branch_location)
2820
return self._get_all_reference_info().get(file_id, (None, None))
2822
def reference_parent(self, file_id, path, possible_transports=None):
2823
"""Return the parent branch for a tree-reference file_id.
2825
:param file_id: The file_id of the tree reference
2826
:param path: The path of the file_id in the tree
2827
:return: A branch associated with the file_id
2829
branch_location = self.get_reference_info(file_id)[1]
2830
if branch_location is None:
2831
return Branch.reference_parent(self, file_id, path,
2832
possible_transports)
2833
branch_location = urlutils.join(self.user_url, branch_location)
2834
return Branch.open(branch_location,
2835
possible_transports=possible_transports)
2837
2493
def set_push_location(self, location):
2838
2494
"""See Branch.set_push_location."""
2839
2495
self._set_config_location('push_location', location)
3234
2855
self.source.unlock()
3236
def pull(self, overwrite=False, stop_revision=None,
3237
possible_transports=None, _hook_master=None, run_hooks=True,
3238
_override_hook_target=None, local=False):
3241
:param _hook_master: Private parameter - set the branch to
3242
be supplied as the master to pull hooks.
3243
:param run_hooks: Private parameter - if false, this branch
3244
is being called because it's the master of the primary branch,
3245
so it should not run its hooks.
3246
:param _override_hook_target: Private parameter - set the branch to be
3247
supplied as the target_branch to pull hooks.
3248
:param local: Only update the local branch, and not the bound branch.
3250
# This type of branch can't be bound.
3252
raise errors.LocalRequiresBoundBranch()
3253
result = PullResult()
3254
result.source_branch = self.source
3255
if _override_hook_target is None:
3256
result.target_branch = self.target
3258
result.target_branch = _override_hook_target
3259
self.source.lock_read()
3261
# We assume that during 'pull' the target repository is closer than
3263
self.source.update_references(self.target)
3264
graph = self.target.repository.get_graph(self.source.repository)
3265
# TODO: Branch formats should have a flag that indicates
3266
# that revno's are expensive, and pull() should honor that flag.
3268
result.old_revno, result.old_revid = \
3269
self.target.last_revision_info()
3270
self.target.update_revisions(self.source, stop_revision,
3271
overwrite=overwrite, graph=graph)
3272
# TODO: The old revid should be specified when merging tags,
3273
# so a tags implementation that versions tags can only
3274
# pull in the most recent changes. -- JRV20090506
3275
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3277
result.new_revno, result.new_revid = self.target.last_revision_info()
3279
result.master_branch = _hook_master
3280
result.local_branch = result.target_branch
3282
result.master_branch = result.target_branch
3283
result.local_branch = None
3285
for hook in Branch.hooks['post_pull']:
3288
self.source.unlock()
3291
def push(self, overwrite=False, stop_revision=None,
3292
_override_hook_source_branch=None):
3293
"""See InterBranch.push.
3295
This is the basic concrete implementation of push()
3297
:param _override_hook_source_branch: If specified, run
3298
the hooks passing this Branch as the source, rather than self.
3299
This is for use of RemoteBranch, where push is delegated to the
3300
underlying vfs-based Branch.
3302
# TODO: Public option to disable running hooks - should be trivial but
3304
self.source.lock_read()
3306
return _run_with_write_locked_target(
3307
self.target, self._push_with_bound_branches, overwrite,
3309
_override_hook_source_branch=_override_hook_source_branch)
3311
self.source.unlock()
3313
def _push_with_bound_branches(self, overwrite, stop_revision,
3314
_override_hook_source_branch=None):
3315
"""Push from source into target, and into target's master if any.
3318
if _override_hook_source_branch:
3319
result.source_branch = _override_hook_source_branch
3320
for hook in Branch.hooks['post_push']:
3323
bound_location = self.target.get_bound_location()
3324
if bound_location and self.target.base != bound_location:
3325
# there is a master branch.
3327
# XXX: Why the second check? Is it even supported for a branch to
3328
# be bound to itself? -- mbp 20070507
3329
master_branch = self.target.get_master_branch()
3330
master_branch.lock_write()
3332
# push into the master from the source branch.
3333
self.source._basic_push(master_branch, overwrite, stop_revision)
3334
# and push into the target branch from the source. Note that we
3335
# push from the source branch again, because its considered the
3336
# highest bandwidth repository.
3337
result = self.source._basic_push(self.target, overwrite,
3339
result.master_branch = master_branch
3340
result.local_branch = self.target
3344
master_branch.unlock()
3347
result = self.source._basic_push(self.target, overwrite,
3349
# TODO: Why set master_branch and local_branch if there's no
3350
# binding? Maybe cleaner to just leave them unset? -- mbp
3352
result.master_branch = self.target
3353
result.local_branch = None
3358
2858
def is_compatible(self, source, target):
3359
2859
# GenericBranch uses the public API, so always compatible
3363
class InterToBranch5(GenericInterBranch):
3366
def _get_branch_formats_to_test():
3367
return BranchFormat._default_format, BzrBranchFormat5()
3369
def pull(self, overwrite=False, stop_revision=None,
3370
possible_transports=None, run_hooks=True,
3371
_override_hook_target=None, local=False):
3372
"""Pull from source into self, updating my master if any.
3374
:param run_hooks: Private parameter - if false, this branch
3375
is being called because it's the master of the primary branch,
3376
so it should not run its hooks.
3378
bound_location = self.target.get_bound_location()
3379
if local and not bound_location:
3380
raise errors.LocalRequiresBoundBranch()
3381
master_branch = None
3382
if not local and bound_location and self.source.user_url != bound_location:
3383
# not pulling from master, so we need to update master.
3384
master_branch = self.target.get_master_branch(possible_transports)
3385
master_branch.lock_write()
3388
# pull from source into master.
3389
master_branch.pull(self.source, overwrite, stop_revision,
3391
return super(InterToBranch5, self).pull(overwrite,
3392
stop_revision, _hook_master=master_branch,
3393
run_hooks=run_hooks,
3394
_override_hook_target=_override_hook_target)
3397
master_branch.unlock()
3400
2863
InterBranch.register_optimiser(GenericInterBranch)
3401
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
