123
126
raise errors.UnstackableRepositoryFormat(self.repository._format,
124
127
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)]
127
159
def open(base, _unsupported=False, possible_transports=None):
128
160
"""Open the branch rooted at base.
412
446
# start_revision_id.
413
447
if self._merge_sorted_revisions_cache is None:
414
448
last_revision = self.last_revision()
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]
449
known_graph = self.repository.get_known_graph_ancestry(
451
self._merge_sorted_revisions_cache = known_graph.merge_sort(
424
453
filtered = self._filter_merge_sorted_revisions(
425
454
self._merge_sorted_revisions_cache, start_revision_id,
426
455
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)
427
459
if direction == 'reverse':
429
461
if direction == 'forward':
436
468
"""Iterate over an inclusive range of sorted revisions."""
437
469
rev_iter = iter(merge_sorted_revisions)
438
470
if start_revision_id is not None:
439
for rev_id, depth, revno, end_of_merge in rev_iter:
471
for node in rev_iter:
472
rev_id = node.key[-1]
440
473
if rev_id != start_revision_id:
443
476
# The decision to include the start or not
444
477
# depends on the stop_rule if a stop is provided
446
iter([(rev_id, depth, revno, end_of_merge)]),
478
# so pop this node back into the iterator
479
rev_iter = chain(iter([node]), rev_iter)
449
481
if stop_revision_id is None:
450
for rev_id, depth, revno, end_of_merge in rev_iter:
451
yield rev_id, depth, revno, end_of_merge
483
for node in rev_iter:
484
rev_id = node.key[-1]
485
yield (rev_id, node.merge_depth, node.revno,
452
487
elif stop_rule == 'exclude':
453
for rev_id, depth, revno, end_of_merge in rev_iter:
488
for node in rev_iter:
489
rev_id = node.key[-1]
454
490
if rev_id == stop_revision_id:
456
yield rev_id, depth, revno, end_of_merge
492
yield (rev_id, node.merge_depth, node.revno,
457
494
elif stop_rule == 'include':
458
for rev_id, depth, revno, end_of_merge in rev_iter:
459
yield rev_id, depth, revno, end_of_merge
495
for node in rev_iter:
496
rev_id = node.key[-1]
497
yield (rev_id, node.merge_depth, node.revno,
460
499
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,
462
513
elif stop_rule == 'with-merges':
463
514
stop_rev = self.repository.get_revision(stop_revision_id)
464
515
if stop_rev.parent_ids:
465
516
left_parent = stop_rev.parent_ids[0]
467
518
left_parent = _mod_revision.NULL_REVISION
468
for rev_id, depth, revno, end_of_merge in rev_iter:
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]
469
525
if rev_id == left_parent:
526
# reached the left parent after the stop_revision
471
yield rev_id, depth, revno, end_of_merge
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)
473
539
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)
475
586
def leave_lock_in_place(self):
476
587
"""Tell this branch object not to release the physical lock when this
477
588
object is unlocked.
607
758
except (errors.NotStacked, errors.UnstackableBranchFormat,
608
759
errors.UnstackableRepositoryFormat):
611
# repositories don't offer an interface to remove fallback
612
# repositories today; take the conceptually simpler option and just
614
self.repository = self.bzrdir.find_repository()
615
# for every revision reference the branch has, ensure it is pulled
617
source_repository = self._get_fallback_repository(old_url)
618
for revision_id in chain([self.last_revision()],
619
self.tags.get_reverse_tag_dict()):
620
self.repository.fetch(source_repository, revision_id,
623
763
self._activate_fallback_location(url)
624
764
# write this out after the repository is stacked to avoid setting a
625
765
# stacked config that doesn't work.
626
766
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()
629
823
def _set_tags_bytes(self, bytes):
630
824
"""Mirror method for _get_tags_bytes.
799
991
except ValueError:
800
992
raise errors.NoSuchRevision(self, revision_id)
802
995
def get_rev_id(self, revno, history=None):
803
996
"""Find the revision id of the specified revno."""
805
998
return _mod_revision.NULL_REVISION
807
history = self.revision_history()
808
if revno <= 0 or revno > len(history):
999
last_revno, last_revid = self.last_revision_info()
1000
if revno == last_revno:
1002
if revno <= 0 or revno > last_revno:
809
1003
raise errors.NoSuchRevision(self, revno)
810
return history[revno - 1]
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]
812
1010
def pull(self, source, overwrite=False, stop_revision=None,
813
possible_transports=None, _override_hook_target=None):
1011
possible_transports=None, *args, **kwargs):
814
1012
"""Mirror source into this branch.
816
1014
This branch is considered to be 'local', having low latency.
818
1016
:returns: PullResult instance
820
raise NotImplementedError(self.pull)
1018
return InterBranch.get(source, self).pull(overwrite=overwrite,
1019
stop_revision=stop_revision,
1020
possible_transports=possible_transports, *args, **kwargs)
822
def push(self, target, overwrite=False, stop_revision=None):
1022
def push(self, target, overwrite=False, stop_revision=None, *args,
823
1024
"""Mirror this branch into target.
825
1026
This branch is considered to be 'local', having low latency.
827
raise NotImplementedError(self.push)
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)
829
1052
def basis_tree(self):
830
1053
"""Return `Tree` object for last revision."""
1018
1245
source_revno, source_revision_id = self.last_revision_info()
1019
1246
if revision_id is None:
1020
1247
revno, revision_id = source_revno, source_revision_id
1021
elif source_revision_id == revision_id:
1022
# we know the revno without needing to walk all of history
1023
revno = source_revno
1025
# To figure out the revno for a random revision, we need to build
1026
# the revision history, and count its length.
1027
# We don't care about the order, just how long it is.
1028
# Alternatively, we could start at the current location, and count
1029
# backwards. But there is no guarantee that we will find it since
1030
# it may be a merged revision.
1031
revno = len(list(self.repository.iter_reverse_revision_history(
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
1033
1256
destination.set_last_revision_info(revno, revision_id)
1035
1258
@needs_read_lock
1061
1302
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()
1063
1306
:return: A BranchCheckResult.
1065
mainline_parent_id = None
1308
result = BranchCheckResult(self)
1066
1309
last_revno, last_revision_id = self.last_revision_info()
1067
real_rev_history = list(self.repository.iter_reverse_revision_history(
1069
real_rev_history.reverse()
1070
if len(real_rev_history) != last_revno:
1071
raise errors.BzrCheckError('revno does not match len(mainline)'
1072
' %s != %s' % (last_revno, len(real_rev_history)))
1073
# TODO: We should probably also check that real_rev_history actually
1074
# matches self.revision_history()
1075
for revision_id in real_rev_history:
1077
revision = self.repository.get_revision(revision_id)
1078
except errors.NoSuchRevision, e:
1079
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1081
# In general the first entry on the revision history has no parents.
1082
# But it's not illegal for it to have parents listed; this can happen
1083
# in imports from Arch when the parents weren't reachable.
1084
if mainline_parent_id is not None:
1085
if mainline_parent_id not in revision.parent_ids:
1086
raise errors.BzrCheckError("previous revision {%s} not listed among "
1088
% (mainline_parent_id, revision_id))
1089
mainline_parent_id = revision_id
1090
return BranchCheckResult(self)
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
1092
1322
def _get_checkout_format(self):
1093
1323
"""Return the most suitable metadir for a checkout of this branch.
1105
1335
def create_clone_on_transport(self, to_transport, revision_id=None,
1336
stacked_on=None, create_prefix=False, use_existing_dir=False):
1107
1337
"""Create a clone of this branch and its bzrdir.
1109
1339
:param to_transport: The transport to clone onto.
1110
1340
:param revision_id: The revision id to use as tip in the new branch.
1111
1341
If None the tip is obtained from this branch.
1112
1342
: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.
1114
1347
# XXX: Fix the bzrdir API to allow getting the branch back from the
1115
1348
# clone call. Or something. 20090224 RBC/spiv.
1349
if revision_id is None:
1350
revision_id = self.last_revision()
1116
1351
dir_to = self.bzrdir.clone_on_transport(to_transport,
1117
revision_id=revision_id, stacked_on=stacked_on)
1352
revision_id=revision_id, stacked_on=stacked_on,
1353
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1118
1354
return dir_to.open_branch()
1120
1356
def create_checkout(self, to_location, revision_id=None,
1174
1411
reconciler.reconcile()
1175
1412
return reconciler
1177
def reference_parent(self, file_id, path):
1414
def reference_parent(self, file_id, path, possible_transports=None):
1178
1415
"""Return the parent branch for a tree-reference file_id
1179
1416
:param file_id: The file_id of the tree reference
1180
1417
:param path: The path of the file_id in the tree
1181
1418
:return: A branch associated with the file_id
1183
1420
# FIXME should provide multiple branches, based on config
1184
return Branch.open(self.bzrdir.root_transport.clone(path).base)
1421
return Branch.open(self.bzrdir.root_transport.clone(path).base,
1422
possible_transports=possible_transports)
1186
1424
def supports_tags(self):
1187
1425
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)
1189
1439
def _check_if_descendant_or_diverged(self, revision_a, revision_b, graph,
1191
1441
"""Ensure that revision_b is a descendant of revision_a.
1302
1554
"""Return the short format description for this format."""
1303
1555
raise NotImplementedError(self.get_format_description)
1305
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
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):
1307
1567
"""Initialize a branch in a bzrdir, with specified files
1309
1569
:param a_bzrdir: The bzrdir to initialize the branch in
1310
1570
:param utf8_files: The files to create as a list of
1311
1571
(filename, content) tuples
1572
:param name: Name of colocated branch to create, if any
1312
1573
:param set_format: If True, set the format with
1313
1574
self.get_format_string. (BzrBranch4 has its format set
1315
1576
:return: a branch in this format
1317
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1318
branch_transport = a_bzrdir.get_branch_transport(self)
1578
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1579
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1320
1581
'metadir': ('lock', lockdir.LockDir),
1321
1582
'branch4': ('branch-lock', lockable_files.TransportLock),
1486
1765
"multiple hooks installed for transform_fallback_location, "
1487
1766
"all are called with the url returned from the previous hook."
1488
1767
"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))
1491
1787
# install the default hooks into the Branch class.
1530
1826
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,
1533
1907
class BzrBranchFormat4(BranchFormat):
1534
1908
"""Bzr branch format 4.
1587
1962
return self.get_format_string()
1589
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1964
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1590
1965
"""See BranchFormat.open()."""
1592
format = BranchFormat.find_format(a_bzrdir)
1967
format = BranchFormat.find_format(a_bzrdir, name=name)
1593
1968
if format.__class__ != self.__class__:
1594
1969
raise AssertionError("wrong format %r found for %r" %
1595
1970
(format, self))
1971
transport = a_bzrdir.get_branch_transport(None, name=name)
1597
transport = a_bzrdir.get_branch_transport(None)
1598
1973
control_files = lockable_files.LockableFiles(transport, 'lock',
1599
1974
lockdir.LockDir)
1600
1975
return self._branch_class()(_format=self,
1601
1976
_control_files=control_files,
1602
1978
a_bzrdir=a_bzrdir,
1603
1979
_repository=a_bzrdir.find_repository(),
1604
1980
ignore_fallbacks=ignore_fallbacks)
1605
1981
except errors.NoSuchFile:
1606
raise errors.NotBranchError(path=transport.base)
1982
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1608
1984
def __init__(self):
1609
1985
super(BranchFormatMetadir, self).__init__()
1671
2047
"""See BranchFormat.get_format_description()."""
1672
2048
return "Branch format 6"
1674
def initialize(self, a_bzrdir):
1675
"""Create a branch of this format in a_bzrdir."""
1676
utf8_files = [('last-revision', '0 null:\n'),
1677
('branch.conf', ''),
1680
return self._initialize_helper(a_bzrdir, utf8_files)
1682
def make_tags(self, branch):
1683
"""See bzrlib.branch.BranchFormat.make_tags()."""
1684
return BasicTags(branch)
1688
class BzrBranchFormat7(BranchFormatMetadir):
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
2108
"""Branch format with last-revision, tags, and a stacked location pointer.
1691
2110
The stacked location pointer is passed down to the repository and requires
1748
2160
def get_reference(self, a_bzrdir):
1749
2161
"""See BranchFormat.get_reference()."""
1750
2162
transport = a_bzrdir.get_branch_transport(None)
1751
return transport.get('location').read()
2163
return transport.get_bytes('location')
1753
2165
def set_reference(self, a_bzrdir, to_branch):
1754
2166
"""See BranchFormat.set_reference()."""
1755
2167
transport = a_bzrdir.get_branch_transport(None)
1756
2168
location = transport.put_bytes('location', to_branch.base)
1758
def initialize(self, a_bzrdir, target_branch=None):
2170
def initialize(self, a_bzrdir, name=None, target_branch=None):
1759
2171
"""Create a branch of this format in a_bzrdir."""
1760
2172
if target_branch is None:
1761
2173
# this format does not implement branch itself, thus the implicit
1762
2174
# creation contract must see it as uninitializable
1763
2175
raise errors.UninitializableFormat(self)
1764
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1765
branch_transport = a_bzrdir.get_branch_transport(self)
2176
mutter('creating branch reference in %s', a_bzrdir.user_url)
2177
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1766
2178
branch_transport.put_bytes('location',
1767
target_branch.bzrdir.root_transport.base)
2179
target_branch.bzrdir.user_url)
1768
2180
branch_transport.put_bytes('format', self.get_format_string())
1770
a_bzrdir, _found=True,
2182
a_bzrdir, name, _found=True,
1771
2183
possible_transports=[target_branch.bzrdir.root_transport])
2184
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
1773
2187
def __init__(self):
1774
2188
super(BranchReferenceFormat, self).__init__()
1780
2194
def clone(to_bzrdir, revision_id=None,
1781
2195
repository_policy=None):
1782
2196
"""See Branch.clone()."""
1783
return format.initialize(to_bzrdir, a_branch)
2197
return format.initialize(to_bzrdir, target_branch=a_branch)
1784
2198
# cannot obey revision_id limits when cloning a reference ...
1785
2199
# FIXME RBC 20060210 either nuke revision_id for clone, or
1786
2200
# emit some sort of warning/error to the caller ?!
1789
def open(self, a_bzrdir, _found=False, location=None,
2203
def open(self, a_bzrdir, name=None, _found=False, location=None,
1790
2204
possible_transports=None, ignore_fallbacks=False):
1791
2205
"""Return the branch that the branch reference in a_bzrdir points at.
1793
2207
:param a_bzrdir: A BzrDir that contains a branch.
2208
:param name: Name of colocated branch to open, if any
1794
2209
:param _found: a private parameter, do not use it. It is used to
1795
2210
indicate if format probing has already be done.
1796
2211
:param ignore_fallbacks: when set, no fallback branches will be opened
1899
2324
return self.control_files.is_locked()
1901
2326
def lock_write(self, token=None):
1902
repo_token = self.repository.lock_write()
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()
1904
token = self.control_files.lock_write(token=token)
2338
return self.control_files.lock_write(token=token)
1906
self.repository.unlock()
2341
self.repository.unlock()
1910
2344
def lock_read(self):
1911
self.repository.lock_read()
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()
1913
2356
self.control_files.lock_read()
1915
self.repository.unlock()
2359
self.repository.unlock()
2362
@only_raises(errors.LockNotHeld, errors.LockBroken)
1918
2363
def unlock(self):
1919
# TODO: test for failed two phase locks. This is known broken.
1921
2365
self.control_files.unlock()
1923
self.repository.unlock()
1924
if not self.control_files.is_locked():
1925
# we just released the lock
1926
self._clear_cached_state()
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()
1928
2376
def peek_lock_mode(self):
1929
2377
if self.control_files._lock_count == 0:
2048
2496
"""See Branch.basis_tree."""
2049
2497
return self.repository.revision_tree(self.last_revision())
2052
def pull(self, source, overwrite=False, stop_revision=None,
2053
_hook_master=None, run_hooks=True, possible_transports=None,
2054
_override_hook_target=None):
2057
:param _hook_master: Private parameter - set the branch to
2058
be supplied as the master to pull hooks.
2059
:param run_hooks: Private parameter - if false, this branch
2060
is being called because it's the master of the primary branch,
2061
so it should not run its hooks.
2062
:param _override_hook_target: Private parameter - set the branch to be
2063
supplied as the target_branch to pull hooks.
2065
result = PullResult()
2066
result.source_branch = source
2067
if _override_hook_target is None:
2068
result.target_branch = self
2070
result.target_branch = _override_hook_target
2073
# We assume that during 'pull' the local repository is closer than
2075
graph = self.repository.get_graph(source.repository)
2076
result.old_revno, result.old_revid = self.last_revision_info()
2077
self.update_revisions(source, stop_revision, overwrite=overwrite,
2079
result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
2080
result.new_revno, result.new_revid = self.last_revision_info()
2082
result.master_branch = _hook_master
2083
result.local_branch = result.target_branch
2085
result.master_branch = result.target_branch
2086
result.local_branch = None
2088
for hook in Branch.hooks['post_pull']:
2094
2499
def _get_parent_location(self):
2095
2500
_locs = ['parent', 'pull', 'x-pull']
2096
2501
for l in _locs:
2104
def push(self, target, overwrite=False, stop_revision=None,
2105
_override_hook_source_branch=None):
2108
This is the basic concrete implementation of push()
2110
:param _override_hook_source_branch: If specified, run
2111
the hooks passing this Branch as the source, rather than self.
2112
This is for use of RemoteBranch, where push is delegated to the
2113
underlying vfs-based Branch.
2115
# TODO: Public option to disable running hooks - should be trivial but
2117
return _run_with_write_locked_target(
2118
target, self._push_with_bound_branches, target, overwrite,
2120
_override_hook_source_branch=_override_hook_source_branch)
2122
def _push_with_bound_branches(self, target, overwrite,
2124
_override_hook_source_branch=None):
2125
"""Push from self into target, and into target's master if any.
2127
This is on the base BzrBranch class even though it doesn't support
2128
bound branches because the *target* might be bound.
2131
if _override_hook_source_branch:
2132
result.source_branch = _override_hook_source_branch
2133
for hook in Branch.hooks['post_push']:
2136
bound_location = target.get_bound_location()
2137
if bound_location and target.base != bound_location:
2138
# there is a master branch.
2140
# XXX: Why the second check? Is it even supported for a branch to
2141
# be bound to itself? -- mbp 20070507
2142
master_branch = target.get_master_branch()
2143
master_branch.lock_write()
2145
# push into the master from this branch.
2146
self._basic_push(master_branch, overwrite, stop_revision)
2147
# and push into the target branch from this. Note that we push from
2148
# this branch again, because its considered the highest bandwidth
2150
result = self._basic_push(target, overwrite, stop_revision)
2151
result.master_branch = master_branch
2152
result.local_branch = target
2156
master_branch.unlock()
2159
result = self._basic_push(target, overwrite, stop_revision)
2160
# TODO: Why set master_branch and local_branch if there's no
2161
# binding? Maybe cleaner to just leave them unset? -- mbp
2163
result.master_branch = target
2164
result.local_branch = None
2168
2508
def _basic_push(self, target, overwrite, stop_revision):
2169
2509
"""Basic implementation of push without bound branches or hooks.
2171
Must be called with self read locked and target write locked.
2511
Must be called with source read locked and target write locked.
2173
2513
result = BranchPushResult()
2174
2514
result.source_branch = self
2175
2515
result.target_branch = target
2176
2516
result.old_revno, result.old_revid = target.last_revision_info()
2517
self.update_references(target)
2177
2518
if result.old_revid != self.last_revision():
2178
2519
# We assume that during 'push' this repository is closer than
2180
2521
graph = self.repository.get_graph(target.repository)
2181
target.update_revisions(self, stop_revision, overwrite=overwrite,
2522
target.update_revisions(self, stop_revision,
2523
overwrite=overwrite, graph=graph)
2183
2524
if self._push_should_merge_tags():
2184
result.tag_conflicts = self.tags.merge_to(target.tags, overwrite)
2525
result.tag_conflicts = self.tags.merge_to(target.tags,
2185
2527
result.new_revno, result.new_revid = target.last_revision_info()
2188
2530
def get_stacked_on_url(self):
2189
raise errors.UnstackableBranchFormat(self._format, self.base)
2531
raise errors.UnstackableBranchFormat(self._format, self.user_url)
2191
2533
def set_push_location(self, location):
2192
2534
"""See Branch.set_push_location."""
2226
2550
It has support for a master_branch which is the data for bound branches.
2230
def pull(self, source, overwrite=False, stop_revision=None,
2231
run_hooks=True, possible_transports=None,
2232
_override_hook_target=None):
2233
"""Pull from source into self, updating my master if any.
2235
:param run_hooks: Private parameter - if false, this branch
2236
is being called because it's the master of the primary branch,
2237
so it should not run its hooks.
2239
bound_location = self.get_bound_location()
2240
master_branch = None
2241
if bound_location and source.base != bound_location:
2242
# not pulling from master, so we need to update master.
2243
master_branch = self.get_master_branch(possible_transports)
2244
master_branch.lock_write()
2247
# pull from source into master.
2248
master_branch.pull(source, overwrite, stop_revision,
2250
return super(BzrBranch5, self).pull(source, overwrite,
2251
stop_revision, _hook_master=master_branch,
2252
run_hooks=run_hooks,
2253
_override_hook_target=_override_hook_target)
2256
master_branch.unlock()
2258
2553
def get_bound_location(self):
2260
2555
return self._transport.get_bytes('bound')[:-1]
2438
2733
self._extend_partial_history(stop_index=last_revno-1)
2439
2734
return list(reversed(self._partial_revision_history_cache))
2441
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2442
"""Extend the partial history to include a given index
2444
If a stop_index is supplied, stop when that index has been reached.
2445
If a stop_revision is supplied, stop when that revision is
2446
encountered. Otherwise, stop when the beginning of history is
2449
:param stop_index: The index which should be present. When it is
2450
present, history extension will stop.
2451
:param revision_id: The revision id which should be present. When
2452
it is encountered, history extension will stop.
2454
repo = self.repository
2455
if len(self._partial_revision_history_cache) == 0:
2456
iterator = repo.iter_reverse_revision_history(self.last_revision())
2458
start_revision = self._partial_revision_history_cache[-1]
2459
iterator = repo.iter_reverse_revision_history(start_revision)
2460
#skip the last revision in the list
2461
next_revision = iterator.next()
2462
for revision_id in iterator:
2463
self._partial_revision_history_cache.append(revision_id)
2464
if (stop_index is not None and
2465
len(self._partial_revision_history_cache) > stop_index):
2467
if revision_id == stop_revision:
2470
2736
def _write_revision_history(self, history):
2471
2737
"""Factored out of set_revision_history.
2493
2759
"""Set the parent branch"""
2494
2760
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)
2496
2837
def set_push_location(self, location):
2497
2838
"""See Branch.set_push_location."""
2498
2839
self._set_config_location('push_location', location)
2858
3234
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
2861
3358
def is_compatible(self, source, target):
2862
3359
# 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()
2866
3400
InterBranch.register_optimiser(GenericInterBranch)
3401
InterBranch.register_optimiser(InterToBranch5)