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.
457
418
# start_revision_id.
458
419
if self._merge_sorted_revisions_cache is None:
459
420
last_revision = self.last_revision()
460
known_graph = self.repository.get_known_graph_ancestry(
462
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]
464
430
filtered = self._filter_merge_sorted_revisions(
465
431
self._merge_sorted_revisions_cache, start_revision_id,
466
432
stop_revision_id, stop_rule)
467
# Make sure we don't return revisions that are not part of the
468
# start_revision_id ancestry.
469
filtered = self._filter_start_non_ancestors(filtered)
470
433
if direction == 'reverse':
472
435
if direction == 'forward':
479
442
"""Iterate over an inclusive range of sorted revisions."""
480
443
rev_iter = iter(merge_sorted_revisions)
481
444
if start_revision_id is not None:
482
for node in rev_iter:
483
rev_id = node.key[-1]
445
for rev_id, depth, revno, end_of_merge in rev_iter:
484
446
if rev_id != start_revision_id:
487
449
# The decision to include the start or not
488
450
# depends on the stop_rule if a stop is provided
489
# so pop this node back into the iterator
490
rev_iter = chain(iter([node]), rev_iter)
452
iter([(rev_id, depth, revno, end_of_merge)]),
492
455
if stop_revision_id is None:
494
for node in rev_iter:
495
rev_id = node.key[-1]
496
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
498
458
elif stop_rule == 'exclude':
499
for node in rev_iter:
500
rev_id = node.key[-1]
459
for rev_id, depth, revno, end_of_merge in rev_iter:
501
460
if rev_id == stop_revision_id:
503
yield (rev_id, node.merge_depth, node.revno,
462
yield rev_id, depth, revno, end_of_merge
505
463
elif stop_rule == 'include':
506
for node in rev_iter:
507
rev_id = node.key[-1]
508
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
510
466
if rev_id == stop_revision_id:
512
elif stop_rule == 'with-merges-without-common-ancestry':
513
# We want to exclude all revisions that are already part of the
514
# stop_revision_id ancestry.
515
graph = self.repository.get_graph()
516
ancestors = graph.find_unique_ancestors(start_revision_id,
518
for node in rev_iter:
519
rev_id = node.key[-1]
520
if rev_id not in ancestors:
522
yield (rev_id, node.merge_depth, node.revno,
524
468
elif stop_rule == 'with-merges':
525
469
stop_rev = self.repository.get_revision(stop_revision_id)
526
470
if stop_rev.parent_ids:
527
471
left_parent = stop_rev.parent_ids[0]
529
473
left_parent = _mod_revision.NULL_REVISION
530
# left_parent is the actual revision we want to stop logging at,
531
# since we want to show the merged revisions after the stop_rev too
532
reached_stop_revision_id = False
533
revision_id_whitelist = []
534
for node in rev_iter:
535
rev_id = node.key[-1]
474
for rev_id, depth, revno, end_of_merge in rev_iter:
536
475
if rev_id == left_parent:
537
# reached the left parent after the stop_revision
539
if (not reached_stop_revision_id or
540
rev_id in revision_id_whitelist):
541
yield (rev_id, node.merge_depth, node.revno,
543
if reached_stop_revision_id or rev_id == stop_revision_id:
544
# only do the merged revs of rev_id from now on
545
rev = self.repository.get_revision(rev_id)
547
reached_stop_revision_id = True
548
revision_id_whitelist.extend(rev.parent_ids)
477
yield rev_id, depth, revno, end_of_merge
550
479
raise ValueError('invalid stop_rule %r' % stop_rule)
552
def _filter_start_non_ancestors(self, rev_iter):
553
# If we started from a dotted revno, we want to consider it as a tip
554
# and don't want to yield revisions that are not part of its
555
# ancestry. Given the order guaranteed by the merge sort, we will see
556
# uninteresting descendants of the first parent of our tip before the
558
first = rev_iter.next()
559
(rev_id, merge_depth, revno, end_of_merge) = first
562
# We start at a mainline revision so by definition, all others
563
# revisions in rev_iter are ancestors
564
for node in rev_iter:
569
pmap = self.repository.get_parent_map([rev_id])
570
parents = pmap.get(rev_id, [])
572
whitelist.update(parents)
574
# If there is no parents, there is nothing of interest left
576
# FIXME: It's hard to test this scenario here as this code is never
577
# called in that case. -- vila 20100322
580
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
582
if rev_id in whitelist:
583
pmap = self.repository.get_parent_map([rev_id])
584
parents = pmap.get(rev_id, [])
585
whitelist.remove(rev_id)
586
whitelist.update(parents)
588
# We've reached the mainline, there is nothing left to
592
# A revision that is not part of the ancestry of our
595
yield (rev_id, merge_depth, revno, end_of_merge)
597
481
def leave_lock_in_place(self):
598
482
"""Tell this branch object not to release the physical lock when this
599
483
object is unlocked.
769
640
except (errors.NotStacked, errors.UnstackableBranchFormat,
770
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,
774
self._activate_fallback_location(url)
659
self._activate_fallback_location(url, 'write')
775
660
# write this out after the repository is stacked to avoid setting a
776
661
# stacked config that doesn't work.
777
662
self._set_config_location('stacked_on_location', url)
780
"""Change a branch to be unstacked, copying data as needed.
782
Don't call this directly, use set_stacked_on_url(None).
784
pb = ui.ui_factory.nested_progress_bar()
786
pb.update("Unstacking")
787
# The basic approach here is to fetch the tip of the branch,
788
# including all available ghosts, from the existing stacked
789
# repository into a new repository object without the fallbacks.
791
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
792
# correct for CHKMap repostiories
793
old_repository = self.repository
794
if len(old_repository._fallback_repositories) != 1:
795
raise AssertionError("can't cope with fallback repositories "
796
"of %r" % (self.repository,))
797
# unlock it, including unlocking the fallback
798
old_repository.unlock()
799
old_repository.lock_read()
801
# Repositories don't offer an interface to remove fallback
802
# repositories today; take the conceptually simpler option and just
803
# reopen it. We reopen it starting from the URL so that we
804
# get a separate connection for RemoteRepositories and can
805
# stream from one of them to the other. This does mean doing
806
# separate SSH connection setup, but unstacking is not a
807
# common operation so it's tolerable.
808
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
809
new_repository = new_bzrdir.find_repository()
810
self.repository = new_repository
811
if self.repository._fallback_repositories:
812
raise AssertionError("didn't expect %r to have "
813
"fallback_repositories"
814
% (self.repository,))
815
# this is not paired with an unlock because it's just restoring
816
# the previous state; the lock's released when set_stacked_on_url
818
self.repository.lock_write()
819
# XXX: If you unstack a branch while it has a working tree
820
# with a pending merge, the pending-merged revisions will no
821
# longer be present. You can (probably) revert and remerge.
823
# XXX: This only fetches up to the tip of the repository; it
824
# doesn't bring across any tags. That's fairly consistent
825
# with how branch works, but perhaps not ideal.
826
self.repository.fetch(old_repository,
827
revision_id=self.last_revision(),
830
old_repository.unlock()
834
665
def _set_tags_bytes(self, bytes):
835
666
"""Mirror method for _get_tags_bytes.
1002
835
except ValueError:
1003
836
raise errors.NoSuchRevision(self, revision_id)
1006
838
def get_rev_id(self, revno, history=None):
1007
839
"""Find the revision id of the specified revno."""
1009
841
return _mod_revision.NULL_REVISION
1010
last_revno, last_revid = self.last_revision_info()
1011
if revno == last_revno:
1013
if revno <= 0 or revno > last_revno:
843
history = self.revision_history()
844
if revno <= 0 or revno > len(history):
1014
845
raise errors.NoSuchRevision(self, revno)
1015
distance_from_last = last_revno - revno
1016
if len(self._partial_revision_history_cache) <= distance_from_last:
1017
self._extend_partial_history(distance_from_last)
1018
return self._partial_revision_history_cache[distance_from_last]
846
return history[revno - 1]
1020
848
@needs_write_lock
1021
849
def pull(self, source, overwrite=False, stop_revision=None,
1256
1084
source_revno, source_revision_id = self.last_revision_info()
1257
1085
if revision_id is None:
1258
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
1260
graph = self.repository.get_graph()
1262
revno = graph.find_distance_to_null(revision_id,
1263
[(source_revision_id, source_revno)])
1264
except errors.GhostRevisionsHaveNoRevno:
1265
# 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(
1267
1099
destination.set_last_revision_info(revno, revision_id)
1269
1101
@needs_read_lock
1313
1145
Callers will typically also want to check the repository.
1315
:param refs: Calculated refs for this branch as specified by
1316
branch._get_check_refs()
1317
1147
:return: A BranchCheckResult.
1319
result = BranchCheckResult(self)
1149
mainline_parent_id = None
1320
1150
last_revno, last_revision_id = self.last_revision_info()
1321
actual_revno = refs[('lefthand-distance', last_revision_id)]
1322
if actual_revno != last_revno:
1323
result.errors.append(errors.BzrCheckError(
1324
'revno does not match len(mainline) %s != %s' % (
1325
last_revno, actual_revno)))
1326
# TODO: We should probably also check that self.revision_history
1327
# matches the repository for older branch formats.
1328
# If looking for the code that cross-checks repository parents against
1329
# 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)
1333
1176
def _get_checkout_format(self):
1334
1177
"""Return the most suitable metadir for a checkout of this branch.
1565
1400
"""Return the short format description for this format."""
1566
1401
raise NotImplementedError(self.get_format_description)
1568
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1569
hooks = Branch.hooks['post_branch_init']
1572
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1576
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1577
lock_type='metadir', set_format=True):
1403
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1578
1405
"""Initialize a branch in a bzrdir, with specified files
1580
1407
:param a_bzrdir: The bzrdir to initialize the branch in
1581
1408
:param utf8_files: The files to create as a list of
1582
1409
(filename, content) tuples
1583
:param name: Name of colocated branch to create, if any
1584
1410
:param set_format: If True, set the format with
1585
1411
self.get_format_string. (BzrBranch4 has its format set
1587
1413
:return: a branch in this format
1589
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1590
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)
1592
1418
'metadir': ('lock', lockdir.LockDir),
1593
1419
'branch4': ('branch-lock', lockable_files.TransportLock),
1776
1592
"multiple hooks installed for transform_fallback_location, "
1777
1593
"all are called with the url returned from the previous hook."
1778
1594
"The order is however undefined.", (1, 9), None))
1779
self.create_hook(HookPoint('automatic_tag_name',
1780
"Called to determine an automatic tag name for a revision."
1781
"automatic_tag_name is called with (branch, revision_id) and "
1782
"should return a tag name or None if no tag name could be "
1783
"determined. The first non-None tag name returned will be used.",
1785
self.create_hook(HookPoint('post_branch_init',
1786
"Called after new branch initialization completes. "
1787
"post_branch_init is called with a "
1788
"bzrlib.branch.BranchInitHookParams. "
1789
"Note that init, branch and checkout (both heavyweight and "
1790
"lightweight) will all trigger this hook.", (2, 2), None))
1791
self.create_hook(HookPoint('post_switch',
1792
"Called after a checkout switches branch. "
1793
"post_switch is called with a "
1794
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1798
1597
# install the default hooks into the Branch class.
1837
1636
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1840
class BranchInitHookParams(object):
1841
"""Object holding parameters passed to *_branch_init hooks.
1843
There are 4 fields that hooks may wish to access:
1845
:ivar format: the branch format
1846
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1847
:ivar name: name of colocated branch, if any (or None)
1848
:ivar branch: the branch created
1850
Note that for lightweight checkouts, the bzrdir and format fields refer to
1851
the checkout, hence they are different from the corresponding fields in
1852
branch, which refer to the original branch.
1855
def __init__(self, format, a_bzrdir, name, branch):
1856
"""Create a group of BranchInitHook parameters.
1858
:param format: the branch format
1859
:param a_bzrdir: the BzrDir where the branch will be/has been
1861
:param name: name of colocated branch, if any (or None)
1862
:param branch: the branch created
1864
Note that for lightweight checkouts, the bzrdir and format fields refer
1865
to the checkout, hence they are different from the corresponding fields
1866
in branch, which refer to the original branch.
1868
self.format = format
1869
self.bzrdir = a_bzrdir
1871
self.branch = branch
1873
def __eq__(self, other):
1874
return self.__dict__ == other.__dict__
1878
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1880
return "<%s of format:%s bzrdir:%s>" % (
1881
self.__class__.__name__, self.branch,
1882
self.format, self.bzrdir)
1885
class SwitchHookParams(object):
1886
"""Object holding parameters passed to *_switch hooks.
1888
There are 4 fields that hooks may wish to access:
1890
:ivar control_dir: BzrDir of the checkout to change
1891
:ivar to_branch: branch that the checkout is to reference
1892
:ivar force: skip the check for local commits in a heavy checkout
1893
:ivar revision_id: revision ID to switch to (or None)
1896
def __init__(self, control_dir, to_branch, force, revision_id):
1897
"""Create a group of SwitchHook parameters.
1899
:param control_dir: BzrDir of the checkout to change
1900
:param to_branch: branch that the checkout is to reference
1901
:param force: skip the check for local commits in a heavy checkout
1902
:param revision_id: revision ID to switch to (or None)
1904
self.control_dir = control_dir
1905
self.to_branch = to_branch
1907
self.revision_id = revision_id
1909
def __eq__(self, other):
1910
return self.__dict__ == other.__dict__
1913
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1914
self.control_dir, self.to_branch,
1918
1639
class BzrBranchFormat4(BranchFormat):
1919
1640
"""Bzr branch format 4.
1973
1693
return self.get_format_string()
1975
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1695
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1976
1696
"""See BranchFormat.open()."""
1978
format = BranchFormat.find_format(a_bzrdir, name=name)
1698
format = BranchFormat.find_format(a_bzrdir)
1979
1699
if format.__class__ != self.__class__:
1980
1700
raise AssertionError("wrong format %r found for %r" %
1981
1701
(format, self))
1982
transport = a_bzrdir.get_branch_transport(None, name=name)
1703
transport = a_bzrdir.get_branch_transport(None)
1984
1704
control_files = lockable_files.LockableFiles(transport, 'lock',
1985
1705
lockdir.LockDir)
1986
1706
return self._branch_class()(_format=self,
1987
1707
_control_files=control_files,
1989
1708
a_bzrdir=a_bzrdir,
1990
1709
_repository=a_bzrdir.find_repository(),
1991
1710
ignore_fallbacks=ignore_fallbacks)
1992
1711
except errors.NoSuchFile:
1993
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1712
raise errors.NotBranchError(path=transport.base)
1995
1714
def __init__(self):
1996
1715
super(BranchFormatMetadir, self).__init__()
2171
1882
def get_reference(self, a_bzrdir):
2172
1883
"""See BranchFormat.get_reference()."""
2173
1884
transport = a_bzrdir.get_branch_transport(None)
2174
return transport.get_bytes('location')
1885
return transport.get('location').read()
2176
1887
def set_reference(self, a_bzrdir, to_branch):
2177
1888
"""See BranchFormat.set_reference()."""
2178
1889
transport = a_bzrdir.get_branch_transport(None)
2179
1890
location = transport.put_bytes('location', to_branch.base)
2181
def initialize(self, a_bzrdir, name=None, target_branch=None):
1892
def initialize(self, a_bzrdir, target_branch=None):
2182
1893
"""Create a branch of this format in a_bzrdir."""
2183
1894
if target_branch is None:
2184
1895
# this format does not implement branch itself, thus the implicit
2185
1896
# creation contract must see it as uninitializable
2186
1897
raise errors.UninitializableFormat(self)
2187
mutter('creating branch reference in %s', a_bzrdir.user_url)
2188
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)
2189
1900
branch_transport.put_bytes('location',
2190
target_branch.bzrdir.user_url)
1901
target_branch.bzrdir.root_transport.base)
2191
1902
branch_transport.put_bytes('format', self.get_format_string())
2193
a_bzrdir, name, _found=True,
1904
a_bzrdir, _found=True,
2194
1905
possible_transports=[target_branch.bzrdir.root_transport])
2195
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2198
1907
def __init__(self):
2199
1908
super(BranchReferenceFormat, self).__init__()
2205
1914
def clone(to_bzrdir, revision_id=None,
2206
1915
repository_policy=None):
2207
1916
"""See Branch.clone()."""
2208
return format.initialize(to_bzrdir, target_branch=a_branch)
1917
return format.initialize(to_bzrdir, a_branch)
2209
1918
# cannot obey revision_id limits when cloning a reference ...
2210
1919
# FIXME RBC 20060210 either nuke revision_id for clone, or
2211
1920
# emit some sort of warning/error to the caller ?!
2214
def open(self, a_bzrdir, name=None, _found=False, location=None,
1923
def open(self, a_bzrdir, _found=False, location=None,
2215
1924
possible_transports=None, ignore_fallbacks=False):
2216
1925
"""Return the branch that the branch reference in a_bzrdir points at.
2218
1927
:param a_bzrdir: A BzrDir that contains a branch.
2219
:param name: Name of colocated branch to open, if any
2220
1928
:param _found: a private parameter, do not use it. It is used to
2221
1929
indicate if format probing has already be done.
2222
1930
:param ignore_fallbacks: when set, no fallback branches will be opened
2269
1976
BranchFormat.register_format(__format6)
2270
1977
BranchFormat.register_format(__format7)
2271
1978
BranchFormat.register_format(__format8)
2272
BranchFormat.set_default_format(__format7)
1979
BranchFormat.set_default_format(__format6)
2273
1980
_legacy_formats = [BzrBranchFormat4(),
2275
1982
network_format_registry.register(
2276
1983
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2279
class BranchWriteLockResult(object):
2280
"""The result of write locking a branch.
2282
:ivar branch_token: The token obtained from the underlying branch lock, or
2284
:ivar unlock: A callable which will unlock the lock.
2287
def __init__(self, unlock, branch_token):
2288
self.branch_token = branch_token
2289
self.unlock = unlock
2292
class BzrBranch(Branch, _RelockDebugMixin):
1986
class BzrBranch(Branch):
2293
1987
"""A branch stored in the actual filesystem.
2295
1989
Note that it's "local" in the context of the filesystem; it doesn't
2301
1995
:ivar repository: Repository for this branch.
2302
1996
:ivar base: The url of the base directory for this branch; the one
2303
1997
containing the .bzr directory.
2304
:ivar name: Optional colocated branch name as it exists in the control
2308
2000
def __init__(self, _format=None,
2309
_control_files=None, a_bzrdir=None, name=None,
2310
_repository=None, ignore_fallbacks=False):
2001
_control_files=None, a_bzrdir=None, _repository=None,
2002
ignore_fallbacks=False):
2311
2003
"""Create new branch object at a particular location."""
2312
2004
if a_bzrdir is None:
2313
2005
raise ValueError('a_bzrdir must be supplied')
2315
2007
self.bzrdir = a_bzrdir
2316
2008
self._base = self.bzrdir.transport.clone('..').base
2318
2009
# XXX: We should be able to just do
2319
2010
# self.base = self.bzrdir.root_transport.base
2320
2011
# but this does not quite work yet -- mbp 20080522
2348
2035
return self.control_files.is_locked()
2350
2037
def lock_write(self, token=None):
2351
"""Lock the branch for write operations.
2353
:param token: A token to permit reacquiring a previously held and
2355
:return: A BranchWriteLockResult.
2357
if not self.is_locked():
2358
self._note_lock('w')
2359
2038
# All-in-one needs to always unlock/lock.
2360
2039
repo_control = getattr(self.repository, 'control_files', None)
2361
2040
if self.control_files == repo_control or not self.is_locked():
2362
self.repository._warn_if_deprecated(self)
2363
2041
self.repository.lock_write()
2364
2042
took_lock = True
2366
2044
took_lock = False
2368
return BranchWriteLockResult(self.unlock,
2369
self.control_files.lock_write(token=token))
2046
return self.control_files.lock_write(token=token)
2372
2049
self.repository.unlock()
2375
2052
def lock_read(self):
2376
"""Lock the branch for read operations.
2378
:return: An object with an unlock method which will release the lock
2381
if not self.is_locked():
2382
self._note_lock('r')
2383
2053
# All-in-one needs to always unlock/lock.
2384
2054
repo_control = getattr(self.repository, 'control_files', None)
2385
2055
if self.control_files == repo_control or not self.is_locked():
2386
self.repository._warn_if_deprecated(self)
2387
2056
self.repository.lock_read()
2388
2057
took_lock = True
2390
2059
took_lock = False
2392
2061
self.control_files.lock_read()
2396
2064
self.repository.unlock()
2399
@only_raises(errors.LockNotHeld, errors.LockBroken)
2400
2067
def unlock(self):
2402
2069
self.control_files.unlock()
2698
2365
raise AssertionError(
2699
2366
"'transform_fallback_location' hook %s returned "
2700
2367
"None, not a URL." % hook_name)
2701
self._activate_fallback_location(url)
2368
self._activate_fallback_location(url, None)
2703
2370
def __init__(self, *args, **kwargs):
2704
2371
self._ignore_fallbacks = kwargs.get('ignore_fallbacks', False)
2705
2372
super(BzrBranch8, self).__init__(*args, **kwargs)
2706
2373
self._last_revision_info_cache = None
2374
self._partial_revision_history_cache = []
2707
2375
self._reference_info = None
2709
2377
def _clear_cached_state(self):
2710
2378
super(BzrBranch8, self)._clear_cached_state()
2711
2379
self._last_revision_info_cache = None
2380
self._partial_revision_history_cache = []
2712
2381
self._reference_info = None
2714
2383
def _last_revision_info(self):
2770
2439
self._extend_partial_history(stop_index=last_revno-1)
2771
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:
2773
2471
def _write_revision_history(self, history):
2774
2472
"""Factored out of set_revision_history.