63
63
BZR_BRANCH_FORMAT_6 = "Bazaar Branch Format 6 (bzr 0.15)\n"
66
class Branch(bzrdir.ControlComponent):
66
# TODO: Maybe include checks for common corruption of newlines, etc?
68
# TODO: Some operations like log might retrieve the same revisions
69
# repeatedly to calculate deltas. We could perhaps have a weakref
70
# cache in memory to make this faster. In general anything can be
71
# cached in memory between lock and unlock operations. .. nb thats
72
# what the transaction identity map provides
75
######################################################################
67
79
"""Branch holding a history of revisions.
70
Base directory/url of the branch; using control_url and
71
control_transport is more standardized.
82
Base directory/url of the branch.
73
84
hooks: An instance of BranchHooks.
165
168
control = bzrdir.BzrDir.open(base, _unsupported,
166
169
possible_transports=possible_transports)
167
return control.open_branch(unsupported=_unsupported)
170
return control.open_branch(_unsupported)
170
def open_from_transport(transport, name=None, _unsupported=False):
173
def open_from_transport(transport, _unsupported=False):
171
174
"""Open the branch rooted at transport"""
172
175
control = bzrdir.BzrDir.open_from_transport(transport, _unsupported)
173
return control.open_branch(name=name, unsupported=_unsupported)
176
return control.open_branch(_unsupported)
176
179
def open_containing(url, possible_transports=None):
214
217
def _get_fallback_repository(self, url):
215
218
"""Get the repository we fallback to at url."""
216
219
url = urlutils.join(self.base, url)
217
a_branch = Branch.open(url,
220
a_bzrdir = bzrdir.BzrDir.open(url,
218
221
possible_transports=[self.bzrdir.root_transport])
219
return a_branch.repository
222
return a_bzrdir.open_branch().repository
221
224
def _get_tags_bytes(self):
222
225
"""Get the bytes of a serialised tags dict.
456
447
# start_revision_id.
457
448
if self._merge_sorted_revisions_cache is None:
458
449
last_revision = self.last_revision()
459
known_graph = self.repository.get_known_graph_ancestry(
450
last_key = (last_revision,)
451
known_graph = self.repository.revisions.get_known_graph_ancestry(
461
453
self._merge_sorted_revisions_cache = known_graph.merge_sort(
463
455
filtered = self._filter_merge_sorted_revisions(
464
456
self._merge_sorted_revisions_cache, start_revision_id,
465
457
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
458
if direction == 'reverse':
471
460
if direction == 'forward':
508
497
node.end_of_merge)
509
498
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
500
elif stop_rule == 'with-merges':
524
501
stop_rev = self.repository.get_revision(stop_revision_id)
525
502
if stop_rev.parent_ids:
526
503
left_parent = stop_rev.parent_ids[0]
528
505
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
506
for node in rev_iter:
534
507
rev_id = node.key[-1]
535
508
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,
510
yield (rev_id, node.merge_depth, node.revno,
541
511
node.end_of_merge)
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)
549
513
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
515
def leave_lock_in_place(self):
597
516
"""Tell this branch object not to release the physical lock when this
598
517
object is unlocked.
1357
1284
# XXX: Fix the bzrdir API to allow getting the branch back from the
1358
1285
# 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
1286
if revision_id is None:
1362
1287
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)
1289
dir_to = self.bzrdir.clone_on_transport(to_transport,
1290
revision_id=revision_id, stacked_on=stacked_on,
1291
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1292
except errors.FileExists:
1293
if not use_existing_dir:
1295
except errors.NoSuchFile:
1296
if not create_prefix:
1366
1298
return dir_to.open_branch()
1368
1300
def create_checkout(self, to_location, revision_id=None,
1436
1367
def supports_tags(self):
1437
1368
return self._format.supports_tags()
1439
def automatic_tag_name(self, revision_id):
1440
"""Try to automatically find the tag name for a revision.
1442
:param revision_id: Revision id of the revision.
1443
:return: A tag name or None if no tag name could be determined.
1445
for hook in Branch.hooks['automatic_tag_name']:
1446
ret = hook(self, revision_id)
1451
1370
def _check_if_descendant_or_diverged(self, revision_a, revision_b, graph,
1453
1372
"""Ensure that revision_b is a descendant of revision_a.
1517
1436
return not (self == other)
1520
def find_format(klass, a_bzrdir, name=None):
1439
def find_format(klass, a_bzrdir):
1521
1440
"""Return the format for the branch object in a_bzrdir."""
1523
transport = a_bzrdir.get_branch_transport(None, name=name)
1524
format_string = transport.get_bytes("format")
1442
transport = a_bzrdir.get_branch_transport(None)
1443
format_string = transport.get("format").read()
1525
1444
return klass._formats[format_string]
1526
1445
except errors.NoSuchFile:
1527
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1446
raise errors.NotBranchError(path=transport.base)
1528
1447
except KeyError:
1529
1448
raise errors.UnknownFormatError(format=format_string, kind='branch')
1568
1485
"""Return the short format description for this format."""
1569
1486
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):
1488
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1581
1490
"""Initialize a branch in a bzrdir, with specified files
1583
1492
:param a_bzrdir: The bzrdir to initialize the branch in
1584
1493
:param utf8_files: The files to create as a list of
1585
1494
(filename, content) tuples
1586
:param name: Name of colocated branch to create, if any
1587
1495
:param set_format: If True, set the format with
1588
1496
self.get_format_string. (BzrBranch4 has its format set
1590
1498
: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)
1500
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1501
branch_transport = a_bzrdir.get_branch_transport(self)
1595
1503
'metadir': ('lock', lockdir.LockDir),
1596
1504
'branch4': ('branch-lock', lockable_files.TransportLock),
1619
1527
control_files.unlock()
1620
branch = self.open(a_bzrdir, name, _found=True)
1621
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
1528
return self.open(a_bzrdir, _found=True)
1624
def initialize(self, a_bzrdir, name=None):
1625
"""Create a branch of this format in a_bzrdir.
1627
:param name: Name of the colocated branch to create.
1530
def initialize(self, a_bzrdir):
1531
"""Create a branch of this format in a_bzrdir."""
1629
1532
raise NotImplementedError(self.initialize)
1631
1534
def is_supported(self):
1662
1565
raise NotImplementedError(self.network_name)
1664
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1567
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1665
1568
"""Return the branch object for a_bzrdir
1667
1570
:param a_bzrdir: A BzrDir that contains a branch.
1668
:param name: Name of colocated branch to open
1669
1571
:param _found: a private parameter, do not use it. It is used to
1670
1572
indicate if format probing has already be done.
1671
1573
:param ignore_fallbacks: when set, no fallback branches will be opened
1779
1681
"multiple hooks installed for transform_fallback_location, "
1780
1682
"all are called with the url returned from the previous hook."
1781
1683
"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
1686
# install the default hooks into the Branch class.
1840
1725
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
1728
class BzrBranchFormat4(BranchFormat):
1922
1729
"""Bzr branch format 4.
1930
1737
"""See BranchFormat.get_format_description()."""
1931
1738
return "Branch format 4"
1933
def initialize(self, a_bzrdir, name=None):
1740
def initialize(self, a_bzrdir):
1934
1741
"""Create a branch of this format in a_bzrdir."""
1935
1742
utf8_files = [('revision-history', ''),
1936
1743
('branch-name', ''),
1938
return self._initialize_helper(a_bzrdir, utf8_files, name=name,
1745
return self._initialize_helper(a_bzrdir, utf8_files,
1939
1746
lock_type='branch4', set_format=False)
1941
1748
def __init__(self):
1976
1782
return self.get_format_string()
1978
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1784
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1979
1785
"""See BranchFormat.open()."""
1981
format = BranchFormat.find_format(a_bzrdir, name=name)
1787
format = BranchFormat.find_format(a_bzrdir)
1982
1788
if format.__class__ != self.__class__:
1983
1789
raise AssertionError("wrong format %r found for %r" %
1984
1790
(format, self))
1985
transport = a_bzrdir.get_branch_transport(None, name=name)
1792
transport = a_bzrdir.get_branch_transport(None)
1987
1793
control_files = lockable_files.LockableFiles(transport, 'lock',
1988
1794
lockdir.LockDir)
1989
1795
return self._branch_class()(_format=self,
1990
1796
_control_files=control_files,
1992
1797
a_bzrdir=a_bzrdir,
1993
1798
_repository=a_bzrdir.find_repository(),
1994
1799
ignore_fallbacks=ignore_fallbacks)
1995
1800
except errors.NoSuchFile:
1996
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1801
raise errors.NotBranchError(path=transport.base)
1998
1803
def __init__(self):
1999
1804
super(BranchFormatMetadir, self).__init__()
2028
1833
"""See BranchFormat.get_format_description()."""
2029
1834
return "Branch format 5"
2031
def initialize(self, a_bzrdir, name=None):
1836
def initialize(self, a_bzrdir):
2032
1837
"""Create a branch of this format in a_bzrdir."""
2033
1838
utf8_files = [('revision-history', ''),
2034
1839
('branch-name', ''),
2036
return self._initialize_helper(a_bzrdir, utf8_files, name)
1841
return self._initialize_helper(a_bzrdir, utf8_files)
2038
1843
def supports_tags(self):
2061
1866
"""See BranchFormat.get_format_description()."""
2062
1867
return "Branch format 6"
2064
def initialize(self, a_bzrdir, name=None):
1869
def initialize(self, a_bzrdir):
2065
1870
"""Create a branch of this format in a_bzrdir."""
2066
1871
utf8_files = [('last-revision', '0 null:\n'),
2067
1872
('branch.conf', ''),
2070
return self._initialize_helper(a_bzrdir, utf8_files, name)
1875
return self._initialize_helper(a_bzrdir, utf8_files)
2072
1877
def make_tags(self, branch):
2073
1878
"""See bzrlib.branch.BranchFormat.make_tags()."""
2091
1896
"""See BranchFormat.get_format_description()."""
2092
1897
return "Branch format 8"
2094
def initialize(self, a_bzrdir, name=None):
1899
def initialize(self, a_bzrdir):
2095
1900
"""Create a branch of this format in a_bzrdir."""
2096
1901
utf8_files = [('last-revision', '0 null:\n'),
2097
1902
('branch.conf', ''),
2099
1904
('references', '')
2101
return self._initialize_helper(a_bzrdir, utf8_files, name)
1906
return self._initialize_helper(a_bzrdir, utf8_files)
2103
1908
def __init__(self):
2104
1909
super(BzrBranchFormat8, self).__init__()
2127
1932
This format was introduced in bzr 1.6.
2130
def initialize(self, a_bzrdir, name=None):
1935
def initialize(self, a_bzrdir):
2131
1936
"""Create a branch of this format in a_bzrdir."""
2132
1937
utf8_files = [('last-revision', '0 null:\n'),
2133
1938
('branch.conf', ''),
2136
return self._initialize_helper(a_bzrdir, utf8_files, name)
1941
return self._initialize_helper(a_bzrdir, utf8_files)
2138
1943
def _branch_class(self):
2139
1944
return BzrBranch7
2171
1976
"""See BranchFormat.get_format_description()."""
2172
1977
return "Checkout reference format 1"
2174
def get_reference(self, a_bzrdir, name=None):
1979
def get_reference(self, a_bzrdir):
2175
1980
"""See BranchFormat.get_reference()."""
2176
transport = a_bzrdir.get_branch_transport(None, name=name)
2177
return transport.get_bytes('location')
1981
transport = a_bzrdir.get_branch_transport(None)
1982
return transport.get('location').read()
2179
def set_reference(self, a_bzrdir, name, to_branch):
1984
def set_reference(self, a_bzrdir, to_branch):
2180
1985
"""See BranchFormat.set_reference()."""
2181
transport = a_bzrdir.get_branch_transport(None, name=name)
1986
transport = a_bzrdir.get_branch_transport(None)
2182
1987
location = transport.put_bytes('location', to_branch.base)
2184
def initialize(self, a_bzrdir, name=None, target_branch=None):
1989
def initialize(self, a_bzrdir, target_branch=None):
2185
1990
"""Create a branch of this format in a_bzrdir."""
2186
1991
if target_branch is None:
2187
1992
# this format does not implement branch itself, thus the implicit
2188
1993
# creation contract must see it as uninitializable
2189
1994
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)
1995
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1996
branch_transport = a_bzrdir.get_branch_transport(self)
2192
1997
branch_transport.put_bytes('location',
2193
target_branch.bzrdir.user_url)
1998
target_branch.bzrdir.root_transport.base)
2194
1999
branch_transport.put_bytes('format', self.get_format_string())
2196
a_bzrdir, name, _found=True,
2001
a_bzrdir, _found=True,
2197
2002
possible_transports=[target_branch.bzrdir.root_transport])
2198
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2201
2004
def __init__(self):
2202
2005
super(BranchReferenceFormat, self).__init__()
2208
2011
def clone(to_bzrdir, revision_id=None,
2209
2012
repository_policy=None):
2210
2013
"""See Branch.clone()."""
2211
return format.initialize(to_bzrdir, target_branch=a_branch)
2014
return format.initialize(to_bzrdir, a_branch)
2212
2015
# cannot obey revision_id limits when cloning a reference ...
2213
2016
# FIXME RBC 20060210 either nuke revision_id for clone, or
2214
2017
# emit some sort of warning/error to the caller ?!
2217
def open(self, a_bzrdir, name=None, _found=False, location=None,
2020
def open(self, a_bzrdir, _found=False, location=None,
2218
2021
possible_transports=None, ignore_fallbacks=False):
2219
2022
"""Return the branch that the branch reference in a_bzrdir points at.
2221
2024
:param a_bzrdir: A BzrDir that contains a branch.
2222
:param name: Name of colocated branch to open, if any
2223
2025
:param _found: a private parameter, do not use it. It is used to
2224
2026
indicate if format probing has already be done.
2225
2027
:param ignore_fallbacks: when set, no fallback branches will be opened
2230
2032
:param possible_transports: An optional reusable transports list.
2233
format = BranchFormat.find_format(a_bzrdir, name=name)
2035
format = BranchFormat.find_format(a_bzrdir)
2234
2036
if format.__class__ != self.__class__:
2235
2037
raise AssertionError("wrong format %r found for %r" %
2236
2038
(format, self))
2237
2039
if location is None:
2238
location = self.get_reference(a_bzrdir, name)
2040
location = self.get_reference(a_bzrdir)
2239
2041
real_bzrdir = bzrdir.BzrDir.open(
2240
2042
location, possible_transports=possible_transports)
2241
result = real_bzrdir.open_branch(name=name,
2242
ignore_fallbacks=ignore_fallbacks)
2043
result = real_bzrdir.open_branch(ignore_fallbacks=ignore_fallbacks)
2243
2044
# this changes the behaviour of result.clone to create a new reference
2244
2045
# rather than a copy of the content of the branch.
2245
2046
# I did not use a proxy object because that needs much more extensive
2279
2080
_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
2083
class BzrBranch(Branch, _RelockDebugMixin):
2300
2084
"""A branch stored in the actual filesystem.
2308
2092
:ivar repository: Repository for this branch.
2309
2093
:ivar base: The url of the base directory for this branch; the one
2310
2094
containing the .bzr directory.
2311
:ivar name: Optional colocated branch name as it exists in the control
2315
2097
def __init__(self, _format=None,
2316
_control_files=None, a_bzrdir=None, name=None,
2317
_repository=None, ignore_fallbacks=False):
2098
_control_files=None, a_bzrdir=None, _repository=None,
2099
ignore_fallbacks=False):
2318
2100
"""Create new branch object at a particular location."""
2319
2101
if a_bzrdir is None:
2320
2102
raise ValueError('a_bzrdir must be supplied')
2322
2104
self.bzrdir = a_bzrdir
2323
2105
self._base = self.bzrdir.transport.clone('..').base
2325
2106
# XXX: We should be able to just do
2326
2107
# self.base = self.bzrdir.root_transport.base
2327
2108
# but this does not quite work yet -- mbp 20080522
2355
2132
return self.control_files.is_locked()
2357
2134
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
2135
if not self.is_locked():
2365
2136
self._note_lock('w')
2366
2137
# All-in-one needs to always unlock/lock.
2367
2138
repo_control = getattr(self.repository, 'control_files', None)
2368
2139
if self.control_files == repo_control or not self.is_locked():
2369
self.repository._warn_if_deprecated(self)
2370
2140
self.repository.lock_write()
2371
2141
took_lock = True
2373
2143
took_lock = False
2375
return BranchWriteLockResult(self.unlock,
2376
self.control_files.lock_write(token=token))
2145
return self.control_files.lock_write(token=token)
2379
2148
self.repository.unlock()
2382
2151
def lock_read(self):
2383
"""Lock the branch for read operations.
2385
:return: A bzrlib.lock.LogicalLockResult.
2387
2152
if not self.is_locked():
2388
2153
self._note_lock('r')
2389
2154
# All-in-one needs to always unlock/lock.
2390
2155
repo_control = getattr(self.repository, 'control_files', None)
2391
2156
if self.control_files == repo_control or not self.is_locked():
2392
self.repository._warn_if_deprecated(self)
2393
2157
self.repository.lock_read()
2394
2158
took_lock = True
2396
2160
took_lock = False
2398
2162
self.control_files.lock_read()
2399
return LogicalLockResult(self.unlock)
2402
2165
self.repository.unlock()