126
125
raise errors.UnstackableRepositoryFormat(self.repository._format,
127
126
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
129
def open(base, _unsupported=False, possible_transports=None):
160
130
"""Open the branch rooted at base.
456
414
# start_revision_id.
457
415
if self._merge_sorted_revisions_cache is None:
458
416
last_revision = self.last_revision()
459
known_graph = self.repository.get_known_graph_ancestry(
461
self._merge_sorted_revisions_cache = known_graph.merge_sort(
417
graph = self.repository.get_graph()
418
parent_map = dict(((key, value) for key, value in
419
graph.iter_ancestry([last_revision]) if value is not None))
420
revision_graph = repository._strip_NULL_ghosts(parent_map)
421
revs = tsort.merge_sort(revision_graph, last_revision, None,
423
# Drop the sequence # before caching
424
self._merge_sorted_revisions_cache = [r[1:] for r in revs]
463
426
filtered = self._filter_merge_sorted_revisions(
464
427
self._merge_sorted_revisions_cache, start_revision_id,
465
428
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
429
if direction == 'reverse':
471
431
if direction == 'forward':
478
438
"""Iterate over an inclusive range of sorted revisions."""
479
439
rev_iter = iter(merge_sorted_revisions)
480
440
if start_revision_id is not None:
481
for node in rev_iter:
482
rev_id = node.key[-1]
441
for rev_id, depth, revno, end_of_merge in rev_iter:
483
442
if rev_id != start_revision_id:
486
445
# The decision to include the start or not
487
446
# 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)
448
iter([(rev_id, depth, revno, end_of_merge)]),
491
451
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,
452
for rev_id, depth, revno, end_of_merge in rev_iter:
453
yield rev_id, depth, revno, end_of_merge
497
454
elif stop_rule == 'exclude':
498
for node in rev_iter:
499
rev_id = node.key[-1]
455
for rev_id, depth, revno, end_of_merge in rev_iter:
500
456
if rev_id == stop_revision_id:
502
yield (rev_id, node.merge_depth, node.revno,
458
yield rev_id, depth, revno, end_of_merge
504
459
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,
460
for rev_id, depth, revno, end_of_merge in rev_iter:
461
yield rev_id, depth, revno, end_of_merge
509
462
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
464
elif stop_rule == 'with-merges':
524
465
stop_rev = self.repository.get_revision(stop_revision_id)
525
466
if stop_rev.parent_ids:
526
467
left_parent = stop_rev.parent_ids[0]
528
469
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]
470
for rev_id, depth, revno, end_of_merge in rev_iter:
535
471
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)
473
yield rev_id, depth, revno, end_of_merge
549
475
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
477
def leave_lock_in_place(self):
597
478
"""Tell this branch object not to release the physical lock when this
598
479
object is unlocked.
768
636
except (errors.NotStacked, errors.UnstackableBranchFormat,
769
637
errors.UnstackableRepositoryFormat):
640
# XXX: Lock correctness - should unlock our old repo if we were
642
# repositories don't offer an interface to remove fallback
643
# repositories today; take the conceptually simpler option and just
645
self.repository = self.bzrdir.find_repository()
646
self.repository.lock_write()
647
# for every revision reference the branch has, ensure it is pulled
649
source_repository = self._get_fallback_repository(old_url)
650
for revision_id in chain([self.last_revision()],
651
self.tags.get_reverse_tag_dict()):
652
self.repository.fetch(source_repository, revision_id,
773
655
self._activate_fallback_location(url)
774
656
# write this out after the repository is stacked to avoid setting a
775
657
# stacked config that doesn't work.
776
658
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
661
def _set_tags_bytes(self, bytes):
834
662
"""Mirror method for _get_tags_bytes.
1001
831
except ValueError:
1002
832
raise errors.NoSuchRevision(self, revision_id)
1005
834
def get_rev_id(self, revno, history=None):
1006
835
"""Find the revision id of the specified revno."""
1008
837
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:
839
history = self.revision_history()
840
if revno <= 0 or revno > len(history):
1013
841
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]
842
return history[revno - 1]
1019
844
@needs_write_lock
1020
845
def pull(self, source, overwrite=False, stop_revision=None,
1255
1085
source_revno, source_revision_id = self.last_revision_info()
1256
1086
if revision_id is None:
1257
1087
revno, revision_id = source_revno, source_revision_id
1088
elif source_revision_id == revision_id:
1089
# we know the revno without needing to walk all of history
1090
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
1092
# To figure out the revno for a random revision, we need to build
1093
# the revision history, and count its length.
1094
# We don't care about the order, just how long it is.
1095
# Alternatively, we could start at the current location, and count
1096
# backwards. But there is no guarantee that we will find it since
1097
# it may be a merged revision.
1098
revno = len(list(self.repository.iter_reverse_revision_history(
1266
1100
destination.set_last_revision_info(revno, revision_id)
1268
1102
@needs_read_lock
1312
1146
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
1148
:return: A BranchCheckResult.
1318
result = BranchCheckResult(self)
1150
mainline_parent_id = None
1319
1151
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
1152
real_rev_history = list(self.repository.iter_reverse_revision_history(
1154
real_rev_history.reverse()
1155
if len(real_rev_history) != last_revno:
1156
raise errors.BzrCheckError('revno does not match len(mainline)'
1157
' %s != %s' % (last_revno, len(real_rev_history)))
1158
# TODO: We should probably also check that real_rev_history actually
1159
# matches self.revision_history()
1160
for revision_id in real_rev_history:
1162
revision = self.repository.get_revision(revision_id)
1163
except errors.NoSuchRevision, e:
1164
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1166
# In general the first entry on the revision history has no parents.
1167
# But it's not illegal for it to have parents listed; this can happen
1168
# in imports from Arch when the parents weren't reachable.
1169
if mainline_parent_id is not None:
1170
if mainline_parent_id not in revision.parent_ids:
1171
raise errors.BzrCheckError("previous revision {%s} not listed among "
1173
% (mainline_parent_id, revision_id))
1174
mainline_parent_id = revision_id
1175
return BranchCheckResult(self)
1332
1177
def _get_checkout_format(self):
1333
1178
"""Return the most suitable metadir for a checkout of this branch.
1357
1202
# XXX: Fix the bzrdir API to allow getting the branch back from the
1358
1203
# 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
1204
if revision_id is None:
1362
1205
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)
1207
dir_to = self.bzrdir.clone_on_transport(to_transport,
1208
revision_id=revision_id, stacked_on=stacked_on,
1209
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1210
except errors.FileExists:
1211
if not use_existing_dir:
1213
except errors.NoSuchFile:
1214
if not create_prefix:
1366
1216
return dir_to.open_branch()
1368
1218
def create_checkout(self, to_location, revision_id=None,
1568
1401
"""Return the short format description for this format."""
1569
1402
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):
1404
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1581
1406
"""Initialize a branch in a bzrdir, with specified files
1583
1408
:param a_bzrdir: The bzrdir to initialize the branch in
1584
1409
:param utf8_files: The files to create as a list of
1585
1410
(filename, content) tuples
1586
:param name: Name of colocated branch to create, if any
1587
1411
:param set_format: If True, set the format with
1588
1412
self.get_format_string. (BzrBranch4 has its format set
1590
1414
: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)
1416
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1417
branch_transport = a_bzrdir.get_branch_transport(self)
1595
1419
'metadir': ('lock', lockdir.LockDir),
1596
1420
'branch4': ('branch-lock', lockable_files.TransportLock),
1779
1593
"multiple hooks installed for transform_fallback_location, "
1780
1594
"all are called with the url returned from the previous hook."
1781
1595
"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
1598
# install the default hooks into the Branch class.
1840
1637
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
1640
class BzrBranchFormat4(BranchFormat):
1922
1641
"""Bzr branch format 4.
1976
1694
return self.get_format_string()
1978
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1696
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1979
1697
"""See BranchFormat.open()."""
1981
format = BranchFormat.find_format(a_bzrdir, name=name)
1699
format = BranchFormat.find_format(a_bzrdir)
1982
1700
if format.__class__ != self.__class__:
1983
1701
raise AssertionError("wrong format %r found for %r" %
1984
1702
(format, self))
1985
transport = a_bzrdir.get_branch_transport(None, name=name)
1704
transport = a_bzrdir.get_branch_transport(None)
1987
1705
control_files = lockable_files.LockableFiles(transport, 'lock',
1988
1706
lockdir.LockDir)
1989
1707
return self._branch_class()(_format=self,
1990
1708
_control_files=control_files,
1992
1709
a_bzrdir=a_bzrdir,
1993
1710
_repository=a_bzrdir.find_repository(),
1994
1711
ignore_fallbacks=ignore_fallbacks)
1995
1712
except errors.NoSuchFile:
1996
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1713
raise errors.NotBranchError(path=transport.base)
1998
1715
def __init__(self):
1999
1716
super(BranchFormatMetadir, self).__init__()
2171
1880
"""See BranchFormat.get_format_description()."""
2172
1881
return "Checkout reference format 1"
2174
def get_reference(self, a_bzrdir, name=None):
1883
def get_reference(self, a_bzrdir):
2175
1884
"""See BranchFormat.get_reference()."""
2176
transport = a_bzrdir.get_branch_transport(None, name=name)
2177
return transport.get_bytes('location')
1885
transport = a_bzrdir.get_branch_transport(None)
1886
return transport.get('location').read()
2179
def set_reference(self, a_bzrdir, name, to_branch):
1888
def set_reference(self, a_bzrdir, to_branch):
2180
1889
"""See BranchFormat.set_reference()."""
2181
transport = a_bzrdir.get_branch_transport(None, name=name)
1890
transport = a_bzrdir.get_branch_transport(None)
2182
1891
location = transport.put_bytes('location', to_branch.base)
2184
def initialize(self, a_bzrdir, name=None, target_branch=None):
1893
def initialize(self, a_bzrdir, target_branch=None):
2185
1894
"""Create a branch of this format in a_bzrdir."""
2186
1895
if target_branch is None:
2187
1896
# this format does not implement branch itself, thus the implicit
2188
1897
# creation contract must see it as uninitializable
2189
1898
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)
1899
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1900
branch_transport = a_bzrdir.get_branch_transport(self)
2192
1901
branch_transport.put_bytes('location',
2193
target_branch.bzrdir.user_url)
1902
target_branch.bzrdir.root_transport.base)
2194
1903
branch_transport.put_bytes('format', self.get_format_string())
2196
a_bzrdir, name, _found=True,
1905
a_bzrdir, _found=True,
2197
1906
possible_transports=[target_branch.bzrdir.root_transport])
2198
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2201
1908
def __init__(self):
2202
1909
super(BranchReferenceFormat, self).__init__()
2208
1915
def clone(to_bzrdir, revision_id=None,
2209
1916
repository_policy=None):
2210
1917
"""See Branch.clone()."""
2211
return format.initialize(to_bzrdir, target_branch=a_branch)
1918
return format.initialize(to_bzrdir, a_branch)
2212
1919
# cannot obey revision_id limits when cloning a reference ...
2213
1920
# FIXME RBC 20060210 either nuke revision_id for clone, or
2214
1921
# emit some sort of warning/error to the caller ?!
2217
def open(self, a_bzrdir, name=None, _found=False, location=None,
1924
def open(self, a_bzrdir, _found=False, location=None,
2218
1925
possible_transports=None, ignore_fallbacks=False):
2219
1926
"""Return the branch that the branch reference in a_bzrdir points at.
2221
1928
:param a_bzrdir: A BzrDir that contains a branch.
2222
:param name: Name of colocated branch to open, if any
2223
1929
:param _found: a private parameter, do not use it. It is used to
2224
1930
indicate if format probing has already be done.
2225
1931
:param ignore_fallbacks: when set, no fallback branches will be opened
2272
1977
BranchFormat.register_format(__format6)
2273
1978
BranchFormat.register_format(__format7)
2274
1979
BranchFormat.register_format(__format8)
2275
BranchFormat.set_default_format(__format7)
1980
BranchFormat.set_default_format(__format6)
2276
1981
_legacy_formats = [BzrBranchFormat4(),
2278
1983
network_format_registry.register(
2279
1984
_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):
1987
class BzrBranch(Branch):
2300
1988
"""A branch stored in the actual filesystem.
2302
1990
Note that it's "local" in the context of the filesystem; it doesn't
2308
1996
:ivar repository: Repository for this branch.
2309
1997
:ivar base: The url of the base directory for this branch; the one
2310
1998
containing the .bzr directory.
2311
:ivar name: Optional colocated branch name as it exists in the control
2315
2001
def __init__(self, _format=None,
2316
_control_files=None, a_bzrdir=None, name=None,
2317
_repository=None, ignore_fallbacks=False):
2002
_control_files=None, a_bzrdir=None, _repository=None,
2003
ignore_fallbacks=False):
2318
2004
"""Create new branch object at a particular location."""
2319
2005
if a_bzrdir is None:
2320
2006
raise ValueError('a_bzrdir must be supplied')
2322
2008
self.bzrdir = a_bzrdir
2323
2009
self._base = self.bzrdir.transport.clone('..').base
2325
2010
# XXX: We should be able to just do
2326
2011
# self.base = self.bzrdir.root_transport.base
2327
2012
# but this does not quite work yet -- mbp 20080522
2355
2036
return self.control_files.is_locked()
2357
2038
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
2039
# All-in-one needs to always unlock/lock.
2367
2040
repo_control = getattr(self.repository, 'control_files', None)
2368
2041
if self.control_files == repo_control or not self.is_locked():
2369
self.repository._warn_if_deprecated(self)
2370
2042
self.repository.lock_write()
2371
2043
took_lock = True
2373
2045
took_lock = False
2375
return BranchWriteLockResult(self.unlock,
2376
self.control_files.lock_write(token=token))
2047
return self.control_files.lock_write(token=token)
2379
2050
self.repository.unlock()
2382
2053
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
2054
# All-in-one needs to always unlock/lock.
2390
2055
repo_control = getattr(self.repository, 'control_files', None)
2391
2056
if self.control_files == repo_control or not self.is_locked():
2392
self.repository._warn_if_deprecated(self)
2393
2057
self.repository.lock_read()
2394
2058
took_lock = True
2396
2060
took_lock = False
2398
2062
self.control_files.lock_read()
2399
return LogicalLockResult(self.unlock)
2402
2065
self.repository.unlock()
2405
@only_raises(errors.LockNotHeld, errors.LockBroken)
2406
2068
def unlock(self):
2408
2070
self.control_files.unlock()
2776
2440
self._extend_partial_history(stop_index=last_revno-1)
2777
2441
return list(reversed(self._partial_revision_history_cache))
2443
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2444
"""Extend the partial history to include a given index
2446
If a stop_index is supplied, stop when that index has been reached.
2447
If a stop_revision is supplied, stop when that revision is
2448
encountered. Otherwise, stop when the beginning of history is
2451
:param stop_index: The index which should be present. When it is
2452
present, history extension will stop.
2453
:param revision_id: The revision id which should be present. When
2454
it is encountered, history extension will stop.
2456
repo = self.repository
2457
if len(self._partial_revision_history_cache) == 0:
2458
iterator = repo.iter_reverse_revision_history(self.last_revision())
2460
start_revision = self._partial_revision_history_cache[-1]
2461
iterator = repo.iter_reverse_revision_history(start_revision)
2462
#skip the last revision in the list
2463
next_revision = iterator.next()
2464
for revision_id in iterator:
2465
self._partial_revision_history_cache.append(revision_id)
2466
if (stop_index is not None and
2467
len(self._partial_revision_history_cache) > stop_index):
2469
if revision_id == stop_revision:
2779
2472
def _write_revision_history(self, history):
2780
2473
"""Factored out of set_revision_history.