126
129
raise errors.UnstackableRepositoryFormat(self.repository._format,
127
130
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
133
def open(base, _unsupported=False, possible_transports=None):
160
134
"""Open the branch rooted at base.
456
418
# start_revision_id.
457
419
if self._merge_sorted_revisions_cache is None:
458
420
last_revision = self.last_revision()
459
known_graph = self.repository.get_known_graph_ancestry(
461
self._merge_sorted_revisions_cache = known_graph.merge_sort(
421
graph = self.repository.get_graph()
422
parent_map = dict(((key, value) for key, value in
423
graph.iter_ancestry([last_revision]) if value is not None))
424
revision_graph = repository._strip_NULL_ghosts(parent_map)
425
revs = tsort.merge_sort(revision_graph, last_revision, None,
427
# Drop the sequence # before caching
428
self._merge_sorted_revisions_cache = [r[1:] for r in revs]
463
430
filtered = self._filter_merge_sorted_revisions(
464
431
self._merge_sorted_revisions_cache, start_revision_id,
465
432
stop_revision_id, stop_rule)
466
# Make sure we don't return revisions that are not part of the
467
# start_revision_id ancestry.
468
filtered = self._filter_start_non_ancestors(filtered)
469
433
if direction == 'reverse':
471
435
if direction == 'forward':
478
442
"""Iterate over an inclusive range of sorted revisions."""
479
443
rev_iter = iter(merge_sorted_revisions)
480
444
if start_revision_id is not None:
481
for node in rev_iter:
482
rev_id = node.key[-1]
445
for rev_id, depth, revno, end_of_merge in rev_iter:
483
446
if rev_id != start_revision_id:
486
449
# The decision to include the start or not
487
450
# depends on the stop_rule if a stop is provided
488
# so pop this node back into the iterator
489
rev_iter = chain(iter([node]), rev_iter)
452
iter([(rev_id, depth, revno, end_of_merge)]),
491
455
if stop_revision_id is None:
493
for node in rev_iter:
494
rev_id = node.key[-1]
495
yield (rev_id, node.merge_depth, node.revno,
456
for rev_id, depth, revno, end_of_merge in rev_iter:
457
yield rev_id, depth, revno, end_of_merge
497
458
elif stop_rule == 'exclude':
498
for node in rev_iter:
499
rev_id = node.key[-1]
459
for rev_id, depth, revno, end_of_merge in rev_iter:
500
460
if rev_id == stop_revision_id:
502
yield (rev_id, node.merge_depth, node.revno,
462
yield rev_id, depth, revno, end_of_merge
504
463
elif stop_rule == 'include':
505
for node in rev_iter:
506
rev_id = node.key[-1]
507
yield (rev_id, node.merge_depth, node.revno,
464
for rev_id, depth, revno, end_of_merge in rev_iter:
465
yield rev_id, depth, revno, end_of_merge
509
466
if rev_id == stop_revision_id:
511
elif stop_rule == 'with-merges-without-common-ancestry':
512
# We want to exclude all revisions that are already part of the
513
# stop_revision_id ancestry.
514
graph = self.repository.get_graph()
515
ancestors = graph.find_unique_ancestors(start_revision_id,
517
for node in rev_iter:
518
rev_id = node.key[-1]
519
if rev_id not in ancestors:
521
yield (rev_id, node.merge_depth, node.revno,
523
468
elif stop_rule == 'with-merges':
524
469
stop_rev = self.repository.get_revision(stop_revision_id)
525
470
if stop_rev.parent_ids:
526
471
left_parent = stop_rev.parent_ids[0]
528
473
left_parent = _mod_revision.NULL_REVISION
529
# left_parent is the actual revision we want to stop logging at,
530
# since we want to show the merged revisions after the stop_rev too
531
reached_stop_revision_id = False
532
revision_id_whitelist = []
533
for node in rev_iter:
534
rev_id = node.key[-1]
474
for rev_id, depth, revno, end_of_merge in rev_iter:
535
475
if rev_id == left_parent:
536
# reached the left parent after the stop_revision
538
if (not reached_stop_revision_id or
539
rev_id in revision_id_whitelist):
540
yield (rev_id, node.merge_depth, node.revno,
542
if reached_stop_revision_id or rev_id == stop_revision_id:
543
# only do the merged revs of rev_id from now on
544
rev = self.repository.get_revision(rev_id)
546
reached_stop_revision_id = True
547
revision_id_whitelist.extend(rev.parent_ids)
477
yield rev_id, depth, revno, end_of_merge
549
479
raise ValueError('invalid stop_rule %r' % stop_rule)
551
def _filter_start_non_ancestors(self, rev_iter):
552
# If we started from a dotted revno, we want to consider it as a tip
553
# and don't want to yield revisions that are not part of its
554
# ancestry. Given the order guaranteed by the merge sort, we will see
555
# uninteresting descendants of the first parent of our tip before the
557
first = rev_iter.next()
558
(rev_id, merge_depth, revno, end_of_merge) = first
561
# We start at a mainline revision so by definition, all others
562
# revisions in rev_iter are ancestors
563
for node in rev_iter:
568
pmap = self.repository.get_parent_map([rev_id])
569
parents = pmap.get(rev_id, [])
571
whitelist.update(parents)
573
# If there is no parents, there is nothing of interest left
575
# FIXME: It's hard to test this scenario here as this code is never
576
# called in that case. -- vila 20100322
579
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
581
if rev_id in whitelist:
582
pmap = self.repository.get_parent_map([rev_id])
583
parents = pmap.get(rev_id, [])
584
whitelist.remove(rev_id)
585
whitelist.update(parents)
587
# We've reached the mainline, there is nothing left to
591
# A revision that is not part of the ancestry of our
594
yield (rev_id, merge_depth, revno, end_of_merge)
596
481
def leave_lock_in_place(self):
597
482
"""Tell this branch object not to release the physical lock when this
598
483
object is unlocked.
768
640
except (errors.NotStacked, errors.UnstackableBranchFormat,
769
641
errors.UnstackableRepositoryFormat):
644
# XXX: Lock correctness - should unlock our old repo if we were
646
# repositories don't offer an interface to remove fallback
647
# repositories today; take the conceptually simpler option and just
649
self.repository = self.bzrdir.find_repository()
650
self.repository.lock_write()
651
# for every revision reference the branch has, ensure it is pulled
653
source_repository = self._get_fallback_repository(old_url)
654
for revision_id in chain([self.last_revision()],
655
self.tags.get_reverse_tag_dict()):
656
self.repository.fetch(source_repository, revision_id,
773
self._activate_fallback_location(url)
659
self._activate_fallback_location(url, 'write')
774
660
# write this out after the repository is stacked to avoid setting a
775
661
# stacked config that doesn't work.
776
662
self._set_config_location('stacked_on_location', url)
779
"""Change a branch to be unstacked, copying data as needed.
781
Don't call this directly, use set_stacked_on_url(None).
783
pb = ui.ui_factory.nested_progress_bar()
785
pb.update("Unstacking")
786
# The basic approach here is to fetch the tip of the branch,
787
# including all available ghosts, from the existing stacked
788
# repository into a new repository object without the fallbacks.
790
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
791
# correct for CHKMap repostiories
792
old_repository = self.repository
793
if len(old_repository._fallback_repositories) != 1:
794
raise AssertionError("can't cope with fallback repositories "
795
"of %r" % (self.repository,))
796
# unlock it, including unlocking the fallback
797
old_repository.unlock()
798
old_repository.lock_read()
800
# Repositories don't offer an interface to remove fallback
801
# repositories today; take the conceptually simpler option and just
802
# reopen it. We reopen it starting from the URL so that we
803
# get a separate connection for RemoteRepositories and can
804
# stream from one of them to the other. This does mean doing
805
# separate SSH connection setup, but unstacking is not a
806
# common operation so it's tolerable.
807
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
808
new_repository = new_bzrdir.find_repository()
809
self.repository = new_repository
810
if self.repository._fallback_repositories:
811
raise AssertionError("didn't expect %r to have "
812
"fallback_repositories"
813
% (self.repository,))
814
# this is not paired with an unlock because it's just restoring
815
# the previous state; the lock's released when set_stacked_on_url
817
self.repository.lock_write()
818
# XXX: If you unstack a branch while it has a working tree
819
# with a pending merge, the pending-merged revisions will no
820
# longer be present. You can (probably) revert and remerge.
822
# XXX: This only fetches up to the tip of the repository; it
823
# doesn't bring across any tags. That's fairly consistent
824
# with how branch works, but perhaps not ideal.
825
self.repository.fetch(old_repository,
826
revision_id=self.last_revision(),
829
old_repository.unlock()
833
665
def _set_tags_bytes(self, bytes):
834
666
"""Mirror method for _get_tags_bytes.
1001
835
except ValueError:
1002
836
raise errors.NoSuchRevision(self, revision_id)
1005
838
def get_rev_id(self, revno, history=None):
1006
839
"""Find the revision id of the specified revno."""
1008
841
return _mod_revision.NULL_REVISION
1009
last_revno, last_revid = self.last_revision_info()
1010
if revno == last_revno:
1012
if revno <= 0 or revno > last_revno:
843
history = self.revision_history()
844
if revno <= 0 or revno > len(history):
1013
845
raise errors.NoSuchRevision(self, revno)
1014
distance_from_last = last_revno - revno
1015
if len(self._partial_revision_history_cache) <= distance_from_last:
1016
self._extend_partial_history(distance_from_last)
1017
return self._partial_revision_history_cache[distance_from_last]
846
return history[revno - 1]
1020
848
def pull(self, source, overwrite=False, stop_revision=None,
1021
possible_transports=None, *args, **kwargs):
849
possible_transports=None, _override_hook_target=None):
1022
850
"""Mirror source into this branch.
1024
852
This branch is considered to be 'local', having low latency.
1026
854
:returns: PullResult instance
1028
return InterBranch.get(source, self).pull(overwrite=overwrite,
1029
stop_revision=stop_revision,
1030
possible_transports=possible_transports, *args, **kwargs)
856
raise NotImplementedError(self.pull)
1032
def push(self, target, overwrite=False, stop_revision=None, *args,
858
def push(self, target, overwrite=False, stop_revision=None):
1034
859
"""Mirror this branch into target.
1036
861
This branch is considered to be 'local', having low latency.
1038
return InterBranch.get(self, target).push(overwrite, stop_revision,
1041
def lossy_push(self, target, stop_revision=None):
1042
"""Push deltas into another branch.
1044
:note: This does not, like push, retain the revision ids from
1045
the source branch and will, rather than adding bzr-specific
1046
metadata, push only those semantics of the revision that can be
1047
natively represented by this branch' VCS.
1049
:param target: Target branch
1050
:param stop_revision: Revision to push, defaults to last revision.
1051
:return: BranchPushResult with an extra member revidmap:
1052
A dictionary mapping revision ids from the target branch
1053
to new revision ids in the target branch, for each
1054
revision that was pushed.
1056
inter = InterBranch.get(self, target)
1057
lossy_push = getattr(inter, "lossy_push", None)
1058
if lossy_push is None:
1059
raise errors.LossyPushToSameVCS(self, target)
1060
return lossy_push(stop_revision)
863
raise NotImplementedError(self.push)
1062
865
def basis_tree(self):
1063
866
"""Return `Tree` object for last revision."""
1255
1059
source_revno, source_revision_id = self.last_revision_info()
1256
1060
if revision_id is None:
1257
1061
revno, revision_id = source_revno, source_revision_id
1062
elif source_revision_id == revision_id:
1063
# we know the revno without needing to walk all of history
1064
revno = source_revno
1259
graph = self.repository.get_graph()
1261
revno = graph.find_distance_to_null(revision_id,
1262
[(source_revision_id, source_revno)])
1263
except errors.GhostRevisionsHaveNoRevno:
1264
# Default to 1, if we can't find anything else
1066
# To figure out the revno for a random revision, we need to build
1067
# the revision history, and count its length.
1068
# We don't care about the order, just how long it is.
1069
# Alternatively, we could start at the current location, and count
1070
# backwards. But there is no guarantee that we will find it since
1071
# it may be a merged revision.
1072
revno = len(list(self.repository.iter_reverse_revision_history(
1266
1074
destination.set_last_revision_info(revno, revision_id)
1268
1076
@needs_read_lock
1312
1120
Callers will typically also want to check the repository.
1314
:param refs: Calculated refs for this branch as specified by
1315
branch._get_check_refs()
1316
1122
:return: A BranchCheckResult.
1318
result = BranchCheckResult(self)
1124
mainline_parent_id = None
1319
1125
last_revno, last_revision_id = self.last_revision_info()
1320
actual_revno = refs[('lefthand-distance', last_revision_id)]
1321
if actual_revno != last_revno:
1322
result.errors.append(errors.BzrCheckError(
1323
'revno does not match len(mainline) %s != %s' % (
1324
last_revno, actual_revno)))
1325
# TODO: We should probably also check that self.revision_history
1326
# matches the repository for older branch formats.
1327
# If looking for the code that cross-checks repository parents against
1328
# the iter_reverse_revision_history output, that is now a repository
1126
real_rev_history = list(self.repository.iter_reverse_revision_history(
1128
real_rev_history.reverse()
1129
if len(real_rev_history) != last_revno:
1130
raise errors.BzrCheckError('revno does not match len(mainline)'
1131
' %s != %s' % (last_revno, len(real_rev_history)))
1132
# TODO: We should probably also check that real_rev_history actually
1133
# matches self.revision_history()
1134
for revision_id in real_rev_history:
1136
revision = self.repository.get_revision(revision_id)
1137
except errors.NoSuchRevision, e:
1138
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1140
# In general the first entry on the revision history has no parents.
1141
# But it's not illegal for it to have parents listed; this can happen
1142
# in imports from Arch when the parents weren't reachable.
1143
if mainline_parent_id is not None:
1144
if mainline_parent_id not in revision.parent_ids:
1145
raise errors.BzrCheckError("previous revision {%s} not listed among "
1147
% (mainline_parent_id, revision_id))
1148
mainline_parent_id = revision_id
1149
return BranchCheckResult(self)
1332
1151
def _get_checkout_format(self):
1333
1152
"""Return the most suitable metadir for a checkout of this branch.
1564
1375
"""Return the short format description for this format."""
1565
1376
raise NotImplementedError(self.get_format_description)
1567
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1568
hooks = Branch.hooks['post_branch_init']
1571
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1575
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1576
lock_type='metadir', set_format=True):
1378
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1577
1380
"""Initialize a branch in a bzrdir, with specified files
1579
1382
:param a_bzrdir: The bzrdir to initialize the branch in
1580
1383
:param utf8_files: The files to create as a list of
1581
1384
(filename, content) tuples
1582
:param name: Name of colocated branch to create, if any
1583
1385
:param set_format: If True, set the format with
1584
1386
self.get_format_string. (BzrBranch4 has its format set
1586
1388
:return: a branch in this format
1588
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1589
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1390
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1391
branch_transport = a_bzrdir.get_branch_transport(self)
1591
1393
'metadir': ('lock', lockdir.LockDir),
1592
1394
'branch4': ('branch-lock', lockable_files.TransportLock),
1775
1567
"multiple hooks installed for transform_fallback_location, "
1776
1568
"all are called with the url returned from the previous hook."
1777
1569
"The order is however undefined.", (1, 9), None))
1778
self.create_hook(HookPoint('automatic_tag_name',
1779
"Called to determine an automatic tag name for a revision."
1780
"automatic_tag_name is called with (branch, revision_id) and "
1781
"should return a tag name or None if no tag name could be "
1782
"determined. The first non-None tag name returned will be used.",
1784
self.create_hook(HookPoint('post_branch_init',
1785
"Called after new branch initialization completes. "
1786
"post_branch_init is called with a "
1787
"bzrlib.branch.BranchInitHookParams. "
1788
"Note that init, branch and checkout (both heavyweight and "
1789
"lightweight) will all trigger this hook.", (2, 2), None))
1790
self.create_hook(HookPoint('post_switch',
1791
"Called after a checkout switches branch. "
1792
"post_switch is called with a "
1793
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1797
1572
# install the default hooks into the Branch class.
1836
1611
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1839
class BranchInitHookParams(object):
1840
"""Object holding parameters passed to *_branch_init hooks.
1842
There are 4 fields that hooks may wish to access:
1844
:ivar format: the branch format
1845
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1846
:ivar name: name of colocated branch, if any (or None)
1847
:ivar branch: the branch created
1849
Note that for lightweight checkouts, the bzrdir and format fields refer to
1850
the checkout, hence they are different from the corresponding fields in
1851
branch, which refer to the original branch.
1854
def __init__(self, format, a_bzrdir, name, branch):
1855
"""Create a group of BranchInitHook parameters.
1857
:param format: the branch format
1858
:param a_bzrdir: the BzrDir where the branch will be/has been
1860
:param name: name of colocated branch, if any (or None)
1861
:param branch: the branch created
1863
Note that for lightweight checkouts, the bzrdir and format fields refer
1864
to the checkout, hence they are different from the corresponding fields
1865
in branch, which refer to the original branch.
1867
self.format = format
1868
self.bzrdir = a_bzrdir
1870
self.branch = branch
1872
def __eq__(self, other):
1873
return self.__dict__ == other.__dict__
1877
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1879
return "<%s of format:%s bzrdir:%s>" % (
1880
self.__class__.__name__, self.branch,
1881
self.format, self.bzrdir)
1884
class SwitchHookParams(object):
1885
"""Object holding parameters passed to *_switch hooks.
1887
There are 4 fields that hooks may wish to access:
1889
:ivar control_dir: BzrDir of the checkout to change
1890
:ivar to_branch: branch that the checkout is to reference
1891
:ivar force: skip the check for local commits in a heavy checkout
1892
:ivar revision_id: revision ID to switch to (or None)
1895
def __init__(self, control_dir, to_branch, force, revision_id):
1896
"""Create a group of SwitchHook parameters.
1898
:param control_dir: BzrDir of the checkout to change
1899
:param to_branch: branch that the checkout is to reference
1900
:param force: skip the check for local commits in a heavy checkout
1901
:param revision_id: revision ID to switch to (or None)
1903
self.control_dir = control_dir
1904
self.to_branch = to_branch
1906
self.revision_id = revision_id
1908
def __eq__(self, other):
1909
return self.__dict__ == other.__dict__
1912
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1913
self.control_dir, self.to_branch,
1917
1614
class BzrBranchFormat4(BranchFormat):
1918
1615
"""Bzr branch format 4.
1972
1668
return self.get_format_string()
1974
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1670
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1975
1671
"""See BranchFormat.open()."""
1977
format = BranchFormat.find_format(a_bzrdir, name=name)
1673
format = BranchFormat.find_format(a_bzrdir)
1978
1674
if format.__class__ != self.__class__:
1979
1675
raise AssertionError("wrong format %r found for %r" %
1980
1676
(format, self))
1981
transport = a_bzrdir.get_branch_transport(None, name=name)
1678
transport = a_bzrdir.get_branch_transport(None)
1983
1679
control_files = lockable_files.LockableFiles(transport, 'lock',
1984
1680
lockdir.LockDir)
1985
1681
return self._branch_class()(_format=self,
1986
1682
_control_files=control_files,
1988
1683
a_bzrdir=a_bzrdir,
1989
1684
_repository=a_bzrdir.find_repository(),
1990
1685
ignore_fallbacks=ignore_fallbacks)
1991
1686
except errors.NoSuchFile:
1992
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1687
raise errors.NotBranchError(path=transport.base)
1994
1689
def __init__(self):
1995
1690
super(BranchFormatMetadir, self).__init__()
2170
1857
def get_reference(self, a_bzrdir):
2171
1858
"""See BranchFormat.get_reference()."""
2172
1859
transport = a_bzrdir.get_branch_transport(None)
2173
return transport.get_bytes('location')
1860
return transport.get('location').read()
2175
1862
def set_reference(self, a_bzrdir, to_branch):
2176
1863
"""See BranchFormat.set_reference()."""
2177
1864
transport = a_bzrdir.get_branch_transport(None)
2178
1865
location = transport.put_bytes('location', to_branch.base)
2180
def initialize(self, a_bzrdir, name=None, target_branch=None):
1867
def initialize(self, a_bzrdir, target_branch=None):
2181
1868
"""Create a branch of this format in a_bzrdir."""
2182
1869
if target_branch is None:
2183
1870
# this format does not implement branch itself, thus the implicit
2184
1871
# creation contract must see it as uninitializable
2185
1872
raise errors.UninitializableFormat(self)
2186
mutter('creating branch reference in %s', a_bzrdir.user_url)
2187
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1873
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1874
branch_transport = a_bzrdir.get_branch_transport(self)
2188
1875
branch_transport.put_bytes('location',
2189
target_branch.bzrdir.user_url)
1876
target_branch.bzrdir.root_transport.base)
2190
1877
branch_transport.put_bytes('format', self.get_format_string())
2192
a_bzrdir, name, _found=True,
1879
a_bzrdir, _found=True,
2193
1880
possible_transports=[target_branch.bzrdir.root_transport])
2194
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2197
1882
def __init__(self):
2198
1883
super(BranchReferenceFormat, self).__init__()
2204
1889
def clone(to_bzrdir, revision_id=None,
2205
1890
repository_policy=None):
2206
1891
"""See Branch.clone()."""
2207
return format.initialize(to_bzrdir, target_branch=a_branch)
1892
return format.initialize(to_bzrdir, a_branch)
2208
1893
# cannot obey revision_id limits when cloning a reference ...
2209
1894
# FIXME RBC 20060210 either nuke revision_id for clone, or
2210
1895
# emit some sort of warning/error to the caller ?!
2213
def open(self, a_bzrdir, name=None, _found=False, location=None,
1898
def open(self, a_bzrdir, _found=False, location=None,
2214
1899
possible_transports=None, ignore_fallbacks=False):
2215
1900
"""Return the branch that the branch reference in a_bzrdir points at.
2217
1902
:param a_bzrdir: A BzrDir that contains a branch.
2218
:param name: Name of colocated branch to open, if any
2219
1903
:param _found: a private parameter, do not use it. It is used to
2220
1904
indicate if format probing has already be done.
2221
1905
:param ignore_fallbacks: when set, no fallback branches will be opened
2268
1951
BranchFormat.register_format(__format6)
2269
1952
BranchFormat.register_format(__format7)
2270
1953
BranchFormat.register_format(__format8)
2271
BranchFormat.set_default_format(__format7)
1954
BranchFormat.set_default_format(__format6)
2272
1955
_legacy_formats = [BzrBranchFormat4(),
2274
1957
network_format_registry.register(
2275
1958
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2278
class BranchWriteLockResult(LogicalLockResult):
2279
"""The result of write locking a branch.
2281
:ivar branch_token: The token obtained from the underlying branch lock, or
2283
:ivar unlock: A callable which will unlock the lock.
2286
def __init__(self, unlock, branch_token):
2287
LogicalLockResult.__init__(self, unlock)
2288
self.branch_token = branch_token
2291
return "BranchWriteLockResult(%s, %s)" % (self.branch_token,
2295
class BzrBranch(Branch, _RelockDebugMixin):
1961
class BzrBranch(Branch):
2296
1962
"""A branch stored in the actual filesystem.
2298
1964
Note that it's "local" in the context of the filesystem; it doesn't
2351
2010
return self.control_files.is_locked()
2353
2012
def lock_write(self, token=None):
2354
"""Lock the branch for write operations.
2356
:param token: A token to permit reacquiring a previously held and
2358
:return: A BranchWriteLockResult.
2360
if not self.is_locked():
2361
self._note_lock('w')
2362
2013
# All-in-one needs to always unlock/lock.
2363
2014
repo_control = getattr(self.repository, 'control_files', None)
2364
2015
if self.control_files == repo_control or not self.is_locked():
2365
self.repository._warn_if_deprecated(self)
2366
2016
self.repository.lock_write()
2367
2017
took_lock = True
2369
2019
took_lock = False
2371
return BranchWriteLockResult(self.unlock,
2372
self.control_files.lock_write(token=token))
2021
return self.control_files.lock_write(token=token)
2375
2024
self.repository.unlock()
2378
2027
def lock_read(self):
2379
"""Lock the branch for read operations.
2381
:return: A bzrlib.lock.LogicalLockResult.
2383
if not self.is_locked():
2384
self._note_lock('r')
2385
2028
# All-in-one needs to always unlock/lock.
2386
2029
repo_control = getattr(self.repository, 'control_files', None)
2387
2030
if self.control_files == repo_control or not self.is_locked():
2388
self.repository._warn_if_deprecated(self)
2389
2031
self.repository.lock_read()
2390
2032
took_lock = True
2392
2034
took_lock = False
2394
2036
self.control_files.lock_read()
2395
return LogicalLockResult(self.unlock)
2398
2039
self.repository.unlock()
2401
@only_raises(errors.LockNotHeld, errors.LockBroken)
2402
2042
def unlock(self):
2404
2044
self.control_files.unlock()
2535
2175
"""See Branch.basis_tree."""
2536
2176
return self.repository.revision_tree(self.last_revision())
2179
def pull(self, source, overwrite=False, stop_revision=None,
2180
_hook_master=None, run_hooks=True, possible_transports=None,
2181
_override_hook_target=None):
2184
:param _hook_master: Private parameter - set the branch to
2185
be supplied as the master to pull hooks.
2186
:param run_hooks: Private parameter - if false, this branch
2187
is being called because it's the master of the primary branch,
2188
so it should not run its hooks.
2189
:param _override_hook_target: Private parameter - set the branch to be
2190
supplied as the target_branch to pull hooks.
2192
result = PullResult()
2193
result.source_branch = source
2194
if _override_hook_target is None:
2195
result.target_branch = self
2197
result.target_branch = _override_hook_target
2200
# We assume that during 'pull' the local repository is closer than
2202
source.update_references(self)
2203
graph = self.repository.get_graph(source.repository)
2204
result.old_revno, result.old_revid = self.last_revision_info()
2205
self.update_revisions(source, stop_revision, overwrite=overwrite,
2207
result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
2208
result.new_revno, result.new_revid = self.last_revision_info()
2210
result.master_branch = _hook_master
2211
result.local_branch = result.target_branch
2213
result.master_branch = result.target_branch
2214
result.local_branch = None
2216
for hook in Branch.hooks['post_pull']:
2538
2222
def _get_parent_location(self):
2539
2223
_locs = ['parent', 'pull', 'x-pull']
2540
2224
for l in _locs:
2232
def push(self, target, overwrite=False, stop_revision=None,
2233
_override_hook_source_branch=None):
2236
This is the basic concrete implementation of push()
2238
:param _override_hook_source_branch: If specified, run
2239
the hooks passing this Branch as the source, rather than self.
2240
This is for use of RemoteBranch, where push is delegated to the
2241
underlying vfs-based Branch.
2243
# TODO: Public option to disable running hooks - should be trivial but
2245
return _run_with_write_locked_target(
2246
target, self._push_with_bound_branches, target, overwrite,
2248
_override_hook_source_branch=_override_hook_source_branch)
2250
def _push_with_bound_branches(self, target, overwrite,
2252
_override_hook_source_branch=None):
2253
"""Push from self into target, and into target's master if any.
2255
This is on the base BzrBranch class even though it doesn't support
2256
bound branches because the *target* might be bound.
2259
if _override_hook_source_branch:
2260
result.source_branch = _override_hook_source_branch
2261
for hook in Branch.hooks['post_push']:
2264
bound_location = target.get_bound_location()
2265
if bound_location and target.base != bound_location:
2266
# there is a master branch.
2268
# XXX: Why the second check? Is it even supported for a branch to
2269
# be bound to itself? -- mbp 20070507
2270
master_branch = target.get_master_branch()
2271
master_branch.lock_write()
2273
# push into the master from this branch.
2274
self._basic_push(master_branch, overwrite, stop_revision)
2275
# and push into the target branch from this. Note that we push from
2276
# this branch again, because its considered the highest bandwidth
2278
result = self._basic_push(target, overwrite, stop_revision)
2279
result.master_branch = master_branch
2280
result.local_branch = target
2284
master_branch.unlock()
2287
result = self._basic_push(target, overwrite, stop_revision)
2288
# TODO: Why set master_branch and local_branch if there's no
2289
# binding? Maybe cleaner to just leave them unset? -- mbp
2291
result.master_branch = target
2292
result.local_branch = None
2547
2296
def _basic_push(self, target, overwrite, stop_revision):
2548
2297
"""Basic implementation of push without bound branches or hooks.
2550
Must be called with source read locked and target write locked.
2299
Must be called with self read locked and target write locked.
2552
2301
result = BranchPushResult()
2553
2302
result.source_branch = self
2589
2337
It has support for a master_branch which is the data for bound branches.
2341
def pull(self, source, overwrite=False, stop_revision=None,
2342
run_hooks=True, possible_transports=None,
2343
_override_hook_target=None):
2344
"""Pull from source into self, updating my master if any.
2346
:param run_hooks: Private parameter - if false, this branch
2347
is being called because it's the master of the primary branch,
2348
so it should not run its hooks.
2350
bound_location = self.get_bound_location()
2351
master_branch = None
2352
if bound_location and source.base != bound_location:
2353
# not pulling from master, so we need to update master.
2354
master_branch = self.get_master_branch(possible_transports)
2355
master_branch.lock_write()
2358
# pull from source into master.
2359
master_branch.pull(source, overwrite, stop_revision,
2361
return super(BzrBranch5, self).pull(source, overwrite,
2362
stop_revision, _hook_master=master_branch,
2363
run_hooks=run_hooks,
2364
_override_hook_target=_override_hook_target)
2367
master_branch.unlock()
2592
2369
def get_bound_location(self):
2594
2371
return self._transport.get_bytes('bound')[:-1]
2772
2551
self._extend_partial_history(stop_index=last_revno-1)
2773
2552
return list(reversed(self._partial_revision_history_cache))
2554
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2555
"""Extend the partial history to include a given index
2557
If a stop_index is supplied, stop when that index has been reached.
2558
If a stop_revision is supplied, stop when that revision is
2559
encountered. Otherwise, stop when the beginning of history is
2562
:param stop_index: The index which should be present. When it is
2563
present, history extension will stop.
2564
:param revision_id: The revision id which should be present. When
2565
it is encountered, history extension will stop.
2567
repo = self.repository
2568
if len(self._partial_revision_history_cache) == 0:
2569
iterator = repo.iter_reverse_revision_history(self.last_revision())
2571
start_revision = self._partial_revision_history_cache[-1]
2572
iterator = repo.iter_reverse_revision_history(start_revision)
2573
#skip the last revision in the list
2574
next_revision = iterator.next()
2575
for revision_id in iterator:
2576
self._partial_revision_history_cache.append(revision_id)
2577
if (stop_index is not None and
2578
len(self._partial_revision_history_cache) > stop_index):
2580
if revision_id == stop_revision:
2775
2583
def _write_revision_history(self, history):
2776
2584
"""Factored out of set_revision_history.
3273
3069
self.source.unlock()
3275
def pull(self, overwrite=False, stop_revision=None,
3276
possible_transports=None, _hook_master=None, run_hooks=True,
3277
_override_hook_target=None, local=False):
3280
:param _hook_master: Private parameter - set the branch to
3281
be supplied as the master to pull hooks.
3282
:param run_hooks: Private parameter - if false, this branch
3283
is being called because it's the master of the primary branch,
3284
so it should not run its hooks.
3285
:param _override_hook_target: Private parameter - set the branch to be
3286
supplied as the target_branch to pull hooks.
3287
:param local: Only update the local branch, and not the bound branch.
3289
# This type of branch can't be bound.
3291
raise errors.LocalRequiresBoundBranch()
3292
result = PullResult()
3293
result.source_branch = self.source
3294
if _override_hook_target is None:
3295
result.target_branch = self.target
3297
result.target_branch = _override_hook_target
3298
self.source.lock_read()
3300
# We assume that during 'pull' the target repository is closer than
3302
self.source.update_references(self.target)
3303
graph = self.target.repository.get_graph(self.source.repository)
3304
# TODO: Branch formats should have a flag that indicates
3305
# that revno's are expensive, and pull() should honor that flag.
3307
result.old_revno, result.old_revid = \
3308
self.target.last_revision_info()
3309
self.target.update_revisions(self.source, stop_revision,
3310
overwrite=overwrite, graph=graph)
3311
# TODO: The old revid should be specified when merging tags,
3312
# so a tags implementation that versions tags can only
3313
# pull in the most recent changes. -- JRV20090506
3314
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3316
result.new_revno, result.new_revid = self.target.last_revision_info()
3318
result.master_branch = _hook_master
3319
result.local_branch = result.target_branch
3321
result.master_branch = result.target_branch
3322
result.local_branch = None
3324
for hook in Branch.hooks['post_pull']:
3327
self.source.unlock()
3330
def push(self, overwrite=False, stop_revision=None,
3331
_override_hook_source_branch=None):
3332
"""See InterBranch.push.
3334
This is the basic concrete implementation of push()
3336
:param _override_hook_source_branch: If specified, run
3337
the hooks passing this Branch as the source, rather than self.
3338
This is for use of RemoteBranch, where push is delegated to the
3339
underlying vfs-based Branch.
3341
# TODO: Public option to disable running hooks - should be trivial but
3343
self.source.lock_read()
3345
return _run_with_write_locked_target(
3346
self.target, self._push_with_bound_branches, overwrite,
3348
_override_hook_source_branch=_override_hook_source_branch)
3350
self.source.unlock()
3352
def _push_with_bound_branches(self, overwrite, stop_revision,
3353
_override_hook_source_branch=None):
3354
"""Push from source into target, and into target's master if any.
3357
if _override_hook_source_branch:
3358
result.source_branch = _override_hook_source_branch
3359
for hook in Branch.hooks['post_push']:
3362
bound_location = self.target.get_bound_location()
3363
if bound_location and self.target.base != bound_location:
3364
# there is a master branch.
3366
# XXX: Why the second check? Is it even supported for a branch to
3367
# be bound to itself? -- mbp 20070507
3368
master_branch = self.target.get_master_branch()
3369
master_branch.lock_write()
3371
# push into the master from the source branch.
3372
self.source._basic_push(master_branch, overwrite, stop_revision)
3373
# and push into the target branch from the source. Note that we
3374
# push from the source branch again, because its considered the
3375
# highest bandwidth repository.
3376
result = self.source._basic_push(self.target, overwrite,
3378
result.master_branch = master_branch
3379
result.local_branch = self.target
3383
master_branch.unlock()
3386
result = self.source._basic_push(self.target, overwrite,
3388
# TODO: Why set master_branch and local_branch if there's no
3389
# binding? Maybe cleaner to just leave them unset? -- mbp
3391
result.master_branch = self.target
3392
result.local_branch = None
3397
3072
def is_compatible(self, source, target):
3398
3073
# GenericBranch uses the public API, so always compatible
3402
class InterToBranch5(GenericInterBranch):
3405
def _get_branch_formats_to_test():
3406
return BranchFormat._default_format, BzrBranchFormat5()
3408
def pull(self, overwrite=False, stop_revision=None,
3409
possible_transports=None, run_hooks=True,
3410
_override_hook_target=None, local=False):
3411
"""Pull from source into self, updating my master if any.
3413
:param run_hooks: Private parameter - if false, this branch
3414
is being called because it's the master of the primary branch,
3415
so it should not run its hooks.
3417
bound_location = self.target.get_bound_location()
3418
if local and not bound_location:
3419
raise errors.LocalRequiresBoundBranch()
3420
master_branch = None
3421
if not local and bound_location and self.source.user_url != bound_location:
3422
# not pulling from master, so we need to update master.
3423
master_branch = self.target.get_master_branch(possible_transports)
3424
master_branch.lock_write()
3427
# pull from source into master.
3428
master_branch.pull(self.source, overwrite, stop_revision,
3430
return super(InterToBranch5, self).pull(overwrite,
3431
stop_revision, _hook_master=master_branch,
3432
run_hooks=run_hooks,
3433
_override_hook_target=_override_hook_target)
3436
master_branch.unlock()
3439
3077
InterBranch.register_optimiser(GenericInterBranch)
3440
InterBranch.register_optimiser(InterToBranch5)