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]
1019
848
@needs_write_lock
1020
849
def pull(self, source, overwrite=False, stop_revision=None,
1255
1084
source_revno, source_revision_id = self.last_revision_info()
1256
1085
if revision_id is None:
1257
1086
revno, revision_id = source_revno, source_revision_id
1087
elif source_revision_id == revision_id:
1088
# we know the revno without needing to walk all of history
1089
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
1091
# To figure out the revno for a random revision, we need to build
1092
# the revision history, and count its length.
1093
# We don't care about the order, just how long it is.
1094
# Alternatively, we could start at the current location, and count
1095
# backwards. But there is no guarantee that we will find it since
1096
# it may be a merged revision.
1097
revno = len(list(self.repository.iter_reverse_revision_history(
1266
1099
destination.set_last_revision_info(revno, revision_id)
1268
1101
@needs_read_lock
1312
1145
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
1147
:return: A BranchCheckResult.
1318
result = BranchCheckResult(self)
1149
mainline_parent_id = None
1319
1150
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
1151
real_rev_history = list(self.repository.iter_reverse_revision_history(
1153
real_rev_history.reverse()
1154
if len(real_rev_history) != last_revno:
1155
raise errors.BzrCheckError('revno does not match len(mainline)'
1156
' %s != %s' % (last_revno, len(real_rev_history)))
1157
# TODO: We should probably also check that real_rev_history actually
1158
# matches self.revision_history()
1159
for revision_id in real_rev_history:
1161
revision = self.repository.get_revision(revision_id)
1162
except errors.NoSuchRevision, e:
1163
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1165
# In general the first entry on the revision history has no parents.
1166
# But it's not illegal for it to have parents listed; this can happen
1167
# in imports from Arch when the parents weren't reachable.
1168
if mainline_parent_id is not None:
1169
if mainline_parent_id not in revision.parent_ids:
1170
raise errors.BzrCheckError("previous revision {%s} not listed among "
1172
% (mainline_parent_id, revision_id))
1173
mainline_parent_id = revision_id
1174
return BranchCheckResult(self)
1332
1176
def _get_checkout_format(self):
1333
1177
"""Return the most suitable metadir for a checkout of this branch.
1357
1201
# XXX: Fix the bzrdir API to allow getting the branch back from the
1358
1202
# clone call. Or something. 20090224 RBC/spiv.
1359
# XXX: Should this perhaps clone colocated branches as well,
1360
# rather than just the default branch? 20100319 JRV
1361
1203
if revision_id is None:
1362
1204
revision_id = self.last_revision()
1363
dir_to = self.bzrdir.clone_on_transport(to_transport,
1364
revision_id=revision_id, stacked_on=stacked_on,
1365
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1206
dir_to = self.bzrdir.clone_on_transport(to_transport,
1207
revision_id=revision_id, stacked_on=stacked_on,
1208
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1209
except errors.FileExists:
1210
if not use_existing_dir:
1212
except errors.NoSuchFile:
1213
if not create_prefix:
1366
1215
return dir_to.open_branch()
1368
1217
def create_checkout(self, to_location, revision_id=None,
1568
1400
"""Return the short format description for this format."""
1569
1401
raise NotImplementedError(self.get_format_description)
1571
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1572
hooks = Branch.hooks['post_branch_init']
1575
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1579
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1580
lock_type='metadir', set_format=True):
1403
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1581
1405
"""Initialize a branch in a bzrdir, with specified files
1583
1407
:param a_bzrdir: The bzrdir to initialize the branch in
1584
1408
:param utf8_files: The files to create as a list of
1585
1409
(filename, content) tuples
1586
:param name: Name of colocated branch to create, if any
1587
1410
:param set_format: If True, set the format with
1588
1411
self.get_format_string. (BzrBranch4 has its format set
1590
1413
:return: a branch in this format
1592
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1593
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1415
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1416
branch_transport = a_bzrdir.get_branch_transport(self)
1595
1418
'metadir': ('lock', lockdir.LockDir),
1596
1419
'branch4': ('branch-lock', lockable_files.TransportLock),
1779
1592
"multiple hooks installed for transform_fallback_location, "
1780
1593
"all are called with the url returned from the previous hook."
1781
1594
"The order is however undefined.", (1, 9), None))
1782
self.create_hook(HookPoint('automatic_tag_name',
1783
"Called to determine an automatic tag name for a revision."
1784
"automatic_tag_name is called with (branch, revision_id) and "
1785
"should return a tag name or None if no tag name could be "
1786
"determined. The first non-None tag name returned will be used.",
1788
self.create_hook(HookPoint('post_branch_init',
1789
"Called after new branch initialization completes. "
1790
"post_branch_init is called with a "
1791
"bzrlib.branch.BranchInitHookParams. "
1792
"Note that init, branch and checkout (both heavyweight and "
1793
"lightweight) will all trigger this hook.", (2, 2), None))
1794
self.create_hook(HookPoint('post_switch',
1795
"Called after a checkout switches branch. "
1796
"post_switch is called with a "
1797
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1801
1597
# install the default hooks into the Branch class.
1840
1636
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1843
class BranchInitHookParams(object):
1844
"""Object holding parameters passed to *_branch_init hooks.
1846
There are 4 fields that hooks may wish to access:
1848
:ivar format: the branch format
1849
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1850
:ivar name: name of colocated branch, if any (or None)
1851
:ivar branch: the branch created
1853
Note that for lightweight checkouts, the bzrdir and format fields refer to
1854
the checkout, hence they are different from the corresponding fields in
1855
branch, which refer to the original branch.
1858
def __init__(self, format, a_bzrdir, name, branch):
1859
"""Create a group of BranchInitHook parameters.
1861
:param format: the branch format
1862
:param a_bzrdir: the BzrDir where the branch will be/has been
1864
:param name: name of colocated branch, if any (or None)
1865
:param branch: the branch created
1867
Note that for lightweight checkouts, the bzrdir and format fields refer
1868
to the checkout, hence they are different from the corresponding fields
1869
in branch, which refer to the original branch.
1871
self.format = format
1872
self.bzrdir = a_bzrdir
1874
self.branch = branch
1876
def __eq__(self, other):
1877
return self.__dict__ == other.__dict__
1881
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1883
return "<%s of format:%s bzrdir:%s>" % (
1884
self.__class__.__name__, self.branch,
1885
self.format, self.bzrdir)
1888
class SwitchHookParams(object):
1889
"""Object holding parameters passed to *_switch hooks.
1891
There are 4 fields that hooks may wish to access:
1893
:ivar control_dir: BzrDir of the checkout to change
1894
:ivar to_branch: branch that the checkout is to reference
1895
:ivar force: skip the check for local commits in a heavy checkout
1896
:ivar revision_id: revision ID to switch to (or None)
1899
def __init__(self, control_dir, to_branch, force, revision_id):
1900
"""Create a group of SwitchHook parameters.
1902
:param control_dir: BzrDir of the checkout to change
1903
:param to_branch: branch that the checkout is to reference
1904
:param force: skip the check for local commits in a heavy checkout
1905
:param revision_id: revision ID to switch to (or None)
1907
self.control_dir = control_dir
1908
self.to_branch = to_branch
1910
self.revision_id = revision_id
1912
def __eq__(self, other):
1913
return self.__dict__ == other.__dict__
1916
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1917
self.control_dir, self.to_branch,
1921
1639
class BzrBranchFormat4(BranchFormat):
1922
1640
"""Bzr branch format 4.
1976
1693
return self.get_format_string()
1978
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1695
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1979
1696
"""See BranchFormat.open()."""
1981
format = BranchFormat.find_format(a_bzrdir, name=name)
1698
format = BranchFormat.find_format(a_bzrdir)
1982
1699
if format.__class__ != self.__class__:
1983
1700
raise AssertionError("wrong format %r found for %r" %
1984
1701
(format, self))
1985
transport = a_bzrdir.get_branch_transport(None, name=name)
1703
transport = a_bzrdir.get_branch_transport(None)
1987
1704
control_files = lockable_files.LockableFiles(transport, 'lock',
1988
1705
lockdir.LockDir)
1989
1706
return self._branch_class()(_format=self,
1990
1707
_control_files=control_files,
1992
1708
a_bzrdir=a_bzrdir,
1993
1709
_repository=a_bzrdir.find_repository(),
1994
1710
ignore_fallbacks=ignore_fallbacks)
1995
1711
except errors.NoSuchFile:
1996
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1712
raise errors.NotBranchError(path=transport.base)
1998
1714
def __init__(self):
1999
1715
super(BranchFormatMetadir, self).__init__()
2171
1879
"""See BranchFormat.get_format_description()."""
2172
1880
return "Checkout reference format 1"
2174
def get_reference(self, a_bzrdir, name=None):
1882
def get_reference(self, a_bzrdir):
2175
1883
"""See BranchFormat.get_reference()."""
2176
transport = a_bzrdir.get_branch_transport(None, name=name)
2177
return transport.get_bytes('location')
1884
transport = a_bzrdir.get_branch_transport(None)
1885
return transport.get('location').read()
2179
def set_reference(self, a_bzrdir, name, to_branch):
1887
def set_reference(self, a_bzrdir, to_branch):
2180
1888
"""See BranchFormat.set_reference()."""
2181
transport = a_bzrdir.get_branch_transport(None, name=name)
1889
transport = a_bzrdir.get_branch_transport(None)
2182
1890
location = transport.put_bytes('location', to_branch.base)
2184
def initialize(self, a_bzrdir, name=None, target_branch=None):
1892
def initialize(self, a_bzrdir, target_branch=None):
2185
1893
"""Create a branch of this format in a_bzrdir."""
2186
1894
if target_branch is None:
2187
1895
# this format does not implement branch itself, thus the implicit
2188
1896
# creation contract must see it as uninitializable
2189
1897
raise errors.UninitializableFormat(self)
2190
mutter('creating branch reference in %s', a_bzrdir.user_url)
2191
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1898
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1899
branch_transport = a_bzrdir.get_branch_transport(self)
2192
1900
branch_transport.put_bytes('location',
2193
target_branch.bzrdir.user_url)
1901
target_branch.bzrdir.root_transport.base)
2194
1902
branch_transport.put_bytes('format', self.get_format_string())
2196
a_bzrdir, name, _found=True,
1904
a_bzrdir, _found=True,
2197
1905
possible_transports=[target_branch.bzrdir.root_transport])
2198
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2201
1907
def __init__(self):
2202
1908
super(BranchReferenceFormat, self).__init__()
2208
1914
def clone(to_bzrdir, revision_id=None,
2209
1915
repository_policy=None):
2210
1916
"""See Branch.clone()."""
2211
return format.initialize(to_bzrdir, target_branch=a_branch)
1917
return format.initialize(to_bzrdir, a_branch)
2212
1918
# cannot obey revision_id limits when cloning a reference ...
2213
1919
# FIXME RBC 20060210 either nuke revision_id for clone, or
2214
1920
# emit some sort of warning/error to the caller ?!
2217
def open(self, a_bzrdir, name=None, _found=False, location=None,
1923
def open(self, a_bzrdir, _found=False, location=None,
2218
1924
possible_transports=None, ignore_fallbacks=False):
2219
1925
"""Return the branch that the branch reference in a_bzrdir points at.
2221
1927
:param a_bzrdir: A BzrDir that contains a branch.
2222
:param name: Name of colocated branch to open, if any
2223
1928
:param _found: a private parameter, do not use it. It is used to
2224
1929
indicate if format probing has already be done.
2225
1930
:param ignore_fallbacks: when set, no fallback branches will be opened
2272
1976
BranchFormat.register_format(__format6)
2273
1977
BranchFormat.register_format(__format7)
2274
1978
BranchFormat.register_format(__format8)
2275
BranchFormat.set_default_format(__format7)
1979
BranchFormat.set_default_format(__format6)
2276
1980
_legacy_formats = [BzrBranchFormat4(),
2278
1982
network_format_registry.register(
2279
1983
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2282
class BranchWriteLockResult(LogicalLockResult):
2283
"""The result of write locking a branch.
2285
:ivar branch_token: The token obtained from the underlying branch lock, or
2287
:ivar unlock: A callable which will unlock the lock.
2290
def __init__(self, unlock, branch_token):
2291
LogicalLockResult.__init__(self, unlock)
2292
self.branch_token = branch_token
2295
return "BranchWriteLockResult(%s, %s)" % (self.branch_token,
2299
class BzrBranch(Branch, _RelockDebugMixin):
1986
class BzrBranch(Branch):
2300
1987
"""A branch stored in the actual filesystem.
2302
1989
Note that it's "local" in the context of the filesystem; it doesn't
2308
1995
:ivar repository: Repository for this branch.
2309
1996
:ivar base: The url of the base directory for this branch; the one
2310
1997
containing the .bzr directory.
2311
:ivar name: Optional colocated branch name as it exists in the control
2315
2000
def __init__(self, _format=None,
2316
_control_files=None, a_bzrdir=None, name=None,
2317
_repository=None, ignore_fallbacks=False):
2001
_control_files=None, a_bzrdir=None, _repository=None,
2002
ignore_fallbacks=False):
2318
2003
"""Create new branch object at a particular location."""
2319
2004
if a_bzrdir is None:
2320
2005
raise ValueError('a_bzrdir must be supplied')
2322
2007
self.bzrdir = a_bzrdir
2323
2008
self._base = self.bzrdir.transport.clone('..').base
2325
2009
# XXX: We should be able to just do
2326
2010
# self.base = self.bzrdir.root_transport.base
2327
2011
# but this does not quite work yet -- mbp 20080522
2355
2035
return self.control_files.is_locked()
2357
2037
def lock_write(self, token=None):
2358
"""Lock the branch for write operations.
2360
:param token: A token to permit reacquiring a previously held and
2362
:return: A BranchWriteLockResult.
2364
if not self.is_locked():
2365
self._note_lock('w')
2366
2038
# All-in-one needs to always unlock/lock.
2367
2039
repo_control = getattr(self.repository, 'control_files', None)
2368
2040
if self.control_files == repo_control or not self.is_locked():
2369
self.repository._warn_if_deprecated(self)
2370
2041
self.repository.lock_write()
2371
2042
took_lock = True
2373
2044
took_lock = False
2375
return BranchWriteLockResult(self.unlock,
2376
self.control_files.lock_write(token=token))
2046
return self.control_files.lock_write(token=token)
2379
2049
self.repository.unlock()
2382
2052
def lock_read(self):
2383
"""Lock the branch for read operations.
2385
:return: A bzrlib.lock.LogicalLockResult.
2387
if not self.is_locked():
2388
self._note_lock('r')
2389
2053
# All-in-one needs to always unlock/lock.
2390
2054
repo_control = getattr(self.repository, 'control_files', None)
2391
2055
if self.control_files == repo_control or not self.is_locked():
2392
self.repository._warn_if_deprecated(self)
2393
2056
self.repository.lock_read()
2394
2057
took_lock = True
2396
2059
took_lock = False
2398
2061
self.control_files.lock_read()
2399
return LogicalLockResult(self.unlock)
2402
2064
self.repository.unlock()
2405
@only_raises(errors.LockNotHeld, errors.LockBroken)
2406
2067
def unlock(self):
2408
2069
self.control_files.unlock()
2704
2365
raise AssertionError(
2705
2366
"'transform_fallback_location' hook %s returned "
2706
2367
"None, not a URL." % hook_name)
2707
self._activate_fallback_location(url)
2368
self._activate_fallback_location(url, None)
2709
2370
def __init__(self, *args, **kwargs):
2710
2371
self._ignore_fallbacks = kwargs.get('ignore_fallbacks', False)
2711
2372
super(BzrBranch8, self).__init__(*args, **kwargs)
2712
2373
self._last_revision_info_cache = None
2374
self._partial_revision_history_cache = []
2713
2375
self._reference_info = None
2715
2377
def _clear_cached_state(self):
2716
2378
super(BzrBranch8, self)._clear_cached_state()
2717
2379
self._last_revision_info_cache = None
2380
self._partial_revision_history_cache = []
2718
2381
self._reference_info = None
2720
2383
def _last_revision_info(self):
2776
2439
self._extend_partial_history(stop_index=last_revno-1)
2777
2440
return list(reversed(self._partial_revision_history_cache))
2442
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2443
"""Extend the partial history to include a given index
2445
If a stop_index is supplied, stop when that index has been reached.
2446
If a stop_revision is supplied, stop when that revision is
2447
encountered. Otherwise, stop when the beginning of history is
2450
:param stop_index: The index which should be present. When it is
2451
present, history extension will stop.
2452
:param revision_id: The revision id which should be present. When
2453
it is encountered, history extension will stop.
2455
repo = self.repository
2456
if len(self._partial_revision_history_cache) == 0:
2457
iterator = repo.iter_reverse_revision_history(self.last_revision())
2459
start_revision = self._partial_revision_history_cache[-1]
2460
iterator = repo.iter_reverse_revision_history(start_revision)
2461
#skip the last revision in the list
2462
next_revision = iterator.next()
2463
for revision_id in iterator:
2464
self._partial_revision_history_cache.append(revision_id)
2465
if (stop_index is not None and
2466
len(self._partial_revision_history_cache) > stop_index):
2468
if revision_id == stop_revision:
2779
2471
def _write_revision_history(self, history):
2780
2472
"""Factored out of set_revision_history.