196
155
The default implementation returns False if this branch has no tags,
197
156
and True the rest of the time. Subclasses may override this.
199
return self.supports_tags() and self.tags.get_tag_dict()
158
return self.tags.supports_tags() and self.tags.get_tag_dict()
201
160
def get_config(self):
202
"""Get a bzrlib.config.BranchConfig for this Branch.
204
This can then be used to get and set configuration options for the
207
:return: A bzrlib.config.BranchConfig.
209
161
return BranchConfig(self)
211
def _get_config(self):
212
"""Get the concrete config for just the config in this branch.
214
This is not intended for client use; see Branch.get_config for the
219
:return: An object supporting get_option and set_option.
221
raise NotImplementedError(self._get_config)
223
def _get_fallback_repository(self, url):
224
"""Get the repository we fallback to at url."""
225
url = urlutils.join(self.base, url)
226
a_branch = Branch.open(url,
227
possible_transports=[self.bzrdir.root_transport])
228
return a_branch.repository
230
def _get_tags_bytes(self):
231
"""Get the bytes of a serialised tags dict.
233
Note that not all branches support tags, nor do all use the same tags
234
logic: this method is specific to BasicTags. Other tag implementations
235
may use the same method name and behave differently, safely, because
236
of the double-dispatch via
237
format.make_tags->tags_instance->get_tags_dict.
239
:return: The bytes of the tags file.
240
:seealso: Branch._set_tags_bytes.
242
return self._transport.get_bytes('tags')
244
163
def _get_nick(self, local=False, possible_transports=None):
245
164
config = self.get_config()
246
165
# explicit overrides master, but don't look for master if local is True
247
166
if not local and not config.has_explicit_nickname():
249
168
master = self.get_master_branch(possible_transports)
250
if master and self.user_url == master.user_url:
251
raise errors.RecursiveBind(self.user_url)
252
169
if master is not None:
253
170
# return the master branch value
254
171
return master.nick
255
except errors.RecursiveBind, e:
257
172
except errors.BzrError, e:
258
173
# Silently fall back to local implicit nick if the master is
491
396
"""Iterate over an inclusive range of sorted revisions."""
492
397
rev_iter = iter(merge_sorted_revisions)
493
398
if start_revision_id is not None:
494
for node in rev_iter:
495
rev_id = node.key[-1]
399
for rev_id, depth, revno, end_of_merge in rev_iter:
496
400
if rev_id != start_revision_id:
499
403
# The decision to include the start or not
500
404
# depends on the stop_rule if a stop is provided
501
# so pop this node back into the iterator
502
rev_iter = chain(iter([node]), rev_iter)
406
iter([(rev_id, depth, revno, end_of_merge)]),
504
409
if stop_revision_id is None:
506
for node in rev_iter:
507
rev_id = node.key[-1]
508
yield (rev_id, node.merge_depth, node.revno,
410
for rev_id, depth, revno, end_of_merge in rev_iter:
411
yield rev_id, depth, revno, end_of_merge
510
412
elif stop_rule == 'exclude':
511
for node in rev_iter:
512
rev_id = node.key[-1]
413
for rev_id, depth, revno, end_of_merge in rev_iter:
513
414
if rev_id == stop_revision_id:
515
yield (rev_id, node.merge_depth, node.revno,
416
yield rev_id, depth, revno, end_of_merge
517
417
elif stop_rule == 'include':
518
for node in rev_iter:
519
rev_id = node.key[-1]
520
yield (rev_id, node.merge_depth, node.revno,
418
for rev_id, depth, revno, end_of_merge in rev_iter:
419
yield rev_id, depth, revno, end_of_merge
522
420
if rev_id == stop_revision_id:
524
elif stop_rule == 'with-merges-without-common-ancestry':
525
# We want to exclude all revisions that are already part of the
526
# stop_revision_id ancestry.
527
graph = self.repository.get_graph()
528
ancestors = graph.find_unique_ancestors(start_revision_id,
530
for node in rev_iter:
531
rev_id = node.key[-1]
532
if rev_id not in ancestors:
534
yield (rev_id, node.merge_depth, node.revno,
536
422
elif stop_rule == 'with-merges':
537
423
stop_rev = self.repository.get_revision(stop_revision_id)
538
424
if stop_rev.parent_ids:
539
425
left_parent = stop_rev.parent_ids[0]
541
427
left_parent = _mod_revision.NULL_REVISION
542
# left_parent is the actual revision we want to stop logging at,
543
# since we want to show the merged revisions after the stop_rev too
544
reached_stop_revision_id = False
545
revision_id_whitelist = []
546
for node in rev_iter:
547
rev_id = node.key[-1]
428
for rev_id, depth, revno, end_of_merge in rev_iter:
548
429
if rev_id == left_parent:
549
# reached the left parent after the stop_revision
551
if (not reached_stop_revision_id or
552
rev_id in revision_id_whitelist):
553
yield (rev_id, node.merge_depth, node.revno,
555
if reached_stop_revision_id or rev_id == stop_revision_id:
556
# only do the merged revs of rev_id from now on
557
rev = self.repository.get_revision(rev_id)
559
reached_stop_revision_id = True
560
revision_id_whitelist.extend(rev.parent_ids)
431
yield rev_id, depth, revno, end_of_merge
562
433
raise ValueError('invalid stop_rule %r' % stop_rule)
564
def _filter_start_non_ancestors(self, rev_iter):
565
# If we started from a dotted revno, we want to consider it as a tip
566
# and don't want to yield revisions that are not part of its
567
# ancestry. Given the order guaranteed by the merge sort, we will see
568
# uninteresting descendants of the first parent of our tip before the
570
first = rev_iter.next()
571
(rev_id, merge_depth, revno, end_of_merge) = first
574
# We start at a mainline revision so by definition, all others
575
# revisions in rev_iter are ancestors
576
for node in rev_iter:
581
pmap = self.repository.get_parent_map([rev_id])
582
parents = pmap.get(rev_id, [])
584
whitelist.update(parents)
586
# If there is no parents, there is nothing of interest left
588
# FIXME: It's hard to test this scenario here as this code is never
589
# called in that case. -- vila 20100322
592
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
594
if rev_id in whitelist:
595
pmap = self.repository.get_parent_map([rev_id])
596
parents = pmap.get(rev_id, [])
597
whitelist.remove(rev_id)
598
whitelist.update(parents)
600
# We've reached the mainline, there is nothing left to
604
# A revision that is not part of the ancestry of our
607
yield (rev_id, merge_depth, revno, end_of_merge)
609
435
def leave_lock_in_place(self):
610
436
"""Tell this branch object not to release the physical lock when this
611
437
object is unlocked.
769
563
:raises UnstackableRepositoryFormat: If the repository does not support
772
if not self._format.supports_stacking():
773
raise errors.UnstackableBranchFormat(self._format, self.user_url)
774
# XXX: Changing from one fallback repository to another does not check
775
# that all the data you need is present in the new fallback.
776
# Possibly it should.
777
self._check_stackable_repo()
780
old_url = self.get_stacked_on_url()
781
except (errors.NotStacked, errors.UnstackableBranchFormat,
782
errors.UnstackableRepositoryFormat):
786
self._activate_fallback_location(url)
787
# write this out after the repository is stacked to avoid setting a
788
# stacked config that doesn't work.
789
self._set_config_location('stacked_on_location', url)
792
"""Change a branch to be unstacked, copying data as needed.
794
Don't call this directly, use set_stacked_on_url(None).
796
pb = ui.ui_factory.nested_progress_bar()
798
pb.update("Unstacking")
799
# The basic approach here is to fetch the tip of the branch,
800
# including all available ghosts, from the existing stacked
801
# repository into a new repository object without the fallbacks.
803
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
804
# correct for CHKMap repostiories
805
old_repository = self.repository
806
if len(old_repository._fallback_repositories) != 1:
807
raise AssertionError("can't cope with fallback repositories "
808
"of %r" % (self.repository,))
809
# Open the new repository object.
810
# Repositories don't offer an interface to remove fallback
811
# repositories today; take the conceptually simpler option and just
812
# reopen it. We reopen it starting from the URL so that we
813
# get a separate connection for RemoteRepositories and can
814
# stream from one of them to the other. This does mean doing
815
# separate SSH connection setup, but unstacking is not a
816
# common operation so it's tolerable.
817
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
818
new_repository = new_bzrdir.find_repository()
819
if new_repository._fallback_repositories:
820
raise AssertionError("didn't expect %r to have "
821
"fallback_repositories"
822
% (self.repository,))
823
# Replace self.repository with the new repository.
824
# Do our best to transfer the lock state (i.e. lock-tokens and
825
# lock count) of self.repository to the new repository.
826
lock_token = old_repository.lock_write().repository_token
827
self.repository = new_repository
828
if isinstance(self, remote.RemoteBranch):
829
# Remote branches can have a second reference to the old
830
# repository that need to be replaced.
831
if self._real_branch is not None:
832
self._real_branch.repository = new_repository
833
self.repository.lock_write(token=lock_token)
834
if lock_token is not None:
835
old_repository.leave_lock_in_place()
836
old_repository.unlock()
837
if lock_token is not None:
838
# XXX: self.repository.leave_lock_in_place() before this
839
# function will not be preserved. Fortunately that doesn't
840
# affect the current default format (2a), and would be a
841
# corner-case anyway.
842
# - Andrew Bennetts, 2010/06/30
843
self.repository.dont_leave_lock_in_place()
847
old_repository.unlock()
848
except errors.LockNotHeld:
851
if old_lock_count == 0:
852
raise AssertionError(
853
'old_repository should have been locked at least once.')
854
for i in range(old_lock_count-1):
855
self.repository.lock_write()
856
# Fetch from the old repository into the new.
857
old_repository.lock_read()
859
# XXX: If you unstack a branch while it has a working tree
860
# with a pending merge, the pending-merged revisions will no
861
# longer be present. You can (probably) revert and remerge.
863
# XXX: This only fetches up to the tip of the repository; it
864
# doesn't bring across any tags. That's fairly consistent
865
# with how branch works, but perhaps not ideal.
866
self.repository.fetch(old_repository,
867
revision_id=self.last_revision(),
870
old_repository.unlock()
874
def _set_tags_bytes(self, bytes):
875
"""Mirror method for _get_tags_bytes.
877
:seealso: Branch._get_tags_bytes.
879
return _run_with_write_locked_target(self, self._transport.put_bytes,
566
raise NotImplementedError(self.set_stacked_on_url)
882
568
def _cache_revision_history(self, rev_history):
883
569
"""Set the cached revision history to rev_history.
1041
716
except ValueError:
1042
717
raise errors.NoSuchRevision(self, revision_id)
1045
719
def get_rev_id(self, revno, history=None):
1046
720
"""Find the revision id of the specified revno."""
1048
722
return _mod_revision.NULL_REVISION
1049
last_revno, last_revid = self.last_revision_info()
1050
if revno == last_revno:
1052
if revno <= 0 or revno > last_revno:
724
history = self.revision_history()
725
if revno <= 0 or revno > len(history):
1053
726
raise errors.NoSuchRevision(self, revno)
1054
distance_from_last = last_revno - revno
1055
if len(self._partial_revision_history_cache) <= distance_from_last:
1056
self._extend_partial_history(distance_from_last)
1057
return self._partial_revision_history_cache[distance_from_last]
727
return history[revno - 1]
1059
729
def pull(self, source, overwrite=False, stop_revision=None,
1060
possible_transports=None, *args, **kwargs):
730
possible_transports=None, _override_hook_target=None):
1061
731
"""Mirror source into this branch.
1063
733
This branch is considered to be 'local', having low latency.
1065
735
:returns: PullResult instance
1067
return InterBranch.get(source, self).pull(overwrite=overwrite,
1068
stop_revision=stop_revision,
1069
possible_transports=possible_transports, *args, **kwargs)
737
raise NotImplementedError(self.pull)
1071
def push(self, target, overwrite=False, stop_revision=None, *args,
739
def push(self, target, overwrite=False, stop_revision=None):
1073
740
"""Mirror this branch into target.
1075
742
This branch is considered to be 'local', having low latency.
1077
return InterBranch.get(self, target).push(overwrite, stop_revision,
1080
def lossy_push(self, target, stop_revision=None):
1081
"""Push deltas into another branch.
1083
:note: This does not, like push, retain the revision ids from
1084
the source branch and will, rather than adding bzr-specific
1085
metadata, push only those semantics of the revision that can be
1086
natively represented by this branch' VCS.
1088
:param target: Target branch
1089
:param stop_revision: Revision to push, defaults to last revision.
1090
:return: BranchPushResult with an extra member revidmap:
1091
A dictionary mapping revision ids from the target branch
1092
to new revision ids in the target branch, for each
1093
revision that was pushed.
1095
inter = InterBranch.get(self, target)
1096
lossy_push = getattr(inter, "lossy_push", None)
1097
if lossy_push is None:
1098
raise errors.LossyPushToSameVCS(self, target)
1099
return lossy_push(stop_revision)
744
raise NotImplementedError(self.push)
1101
746
def basis_tree(self):
1102
747
"""Return `Tree` object for last revision."""
1294
920
source_revno, source_revision_id = self.last_revision_info()
1295
921
if revision_id is None:
1296
922
revno, revision_id = source_revno, source_revision_id
923
elif source_revision_id == revision_id:
924
# we know the revno without needing to walk all of history
1298
graph = self.repository.get_graph()
1300
revno = graph.find_distance_to_null(revision_id,
1301
[(source_revision_id, source_revno)])
1302
except errors.GhostRevisionsHaveNoRevno:
1303
# Default to 1, if we can't find anything else
927
# To figure out the revno for a random revision, we need to build
928
# the revision history, and count its length.
929
# We don't care about the order, just how long it is.
930
# Alternatively, we could start at the current location, and count
931
# backwards. But there is no guarantee that we will find it since
932
# it may be a merged revision.
933
revno = len(list(self.repository.iter_reverse_revision_history(
1305
935
destination.set_last_revision_info(revno, revision_id)
1307
938
def copy_content_into(self, destination, revision_id=None):
1308
939
"""Copy the content of self into destination.
1310
941
revision_id: if not None, the revision history in the new branch will
1311
942
be truncated to end with revision_id.
1313
return InterBranch.get(self, destination).copy_content_into(
1314
revision_id=revision_id)
1316
def update_references(self, target):
1317
if not getattr(self._format, 'supports_reference_locations', False):
1319
reference_dict = self._get_all_reference_info()
1320
if len(reference_dict) == 0:
1322
old_base = self.base
1323
new_base = target.base
1324
target_reference_dict = target._get_all_reference_info()
1325
for file_id, (tree_path, branch_location) in (
1326
reference_dict.items()):
1327
branch_location = urlutils.rebase_url(branch_location,
1329
target_reference_dict.setdefault(
1330
file_id, (tree_path, branch_location))
1331
target._set_all_reference_info(target_reference_dict)
944
self._synchronize_history(destination, revision_id)
946
parent = self.get_parent()
947
except errors.InaccessibleParent, e:
948
mutter('parent was not accessible to copy: %s', e)
951
destination.set_parent(parent)
952
if self._push_should_merge_tags():
953
self.tags.merge_to(destination.tags)
1333
955
@needs_read_lock
1334
def check(self, refs):
1335
957
"""Check consistency of the branch.
1337
959
In particular this checks that revisions given in the revision-history
1803
1312
Hooks.__init__(self)
1804
self.create_hook(HookPoint('set_rh',
1805
"Invoked whenever the revision history has been set via "
1806
"set_revision_history. The api signature is (branch, "
1807
"revision_history), and the branch will be write-locked. "
1808
"The set_rh hook can be expensive for bzr to trigger, a better "
1809
"hook to use is Branch.post_change_branch_tip.", (0, 15), None))
1810
self.create_hook(HookPoint('open',
1811
"Called with the Branch object that has been opened after a "
1812
"branch is opened.", (1, 8), None))
1813
self.create_hook(HookPoint('post_push',
1814
"Called after a push operation completes. post_push is called "
1815
"with a bzrlib.branch.BranchPushResult object and only runs in the "
1816
"bzr client.", (0, 15), None))
1817
self.create_hook(HookPoint('post_pull',
1818
"Called after a pull operation completes. post_pull is called "
1819
"with a bzrlib.branch.PullResult object and only runs in the "
1820
"bzr client.", (0, 15), None))
1821
self.create_hook(HookPoint('pre_commit',
1822
"Called after a commit is calculated but before it is is "
1823
"completed. pre_commit is called with (local, master, old_revno, "
1824
"old_revid, future_revno, future_revid, tree_delta, future_tree"
1825
"). old_revid is NULL_REVISION for the first commit to a branch, "
1826
"tree_delta is a TreeDelta object describing changes from the "
1827
"basis revision. hooks MUST NOT modify this delta. "
1828
" future_tree is an in-memory tree obtained from "
1829
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1830
"tree.", (0,91), None))
1831
self.create_hook(HookPoint('post_commit',
1832
"Called in the bzr client after a commit has completed. "
1833
"post_commit is called with (local, master, old_revno, old_revid, "
1834
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1835
"commit to a branch.", (0, 15), None))
1836
self.create_hook(HookPoint('post_uncommit',
1837
"Called in the bzr client after an uncommit completes. "
1838
"post_uncommit is called with (local, master, old_revno, "
1839
"old_revid, new_revno, new_revid) where local is the local branch "
1840
"or None, master is the target branch, and an empty branch "
1841
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1842
self.create_hook(HookPoint('pre_change_branch_tip',
1843
"Called in bzr client and server before a change to the tip of a "
1844
"branch is made. pre_change_branch_tip is called with a "
1845
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1846
"commit, uncommit will all trigger this hook.", (1, 6), None))
1847
self.create_hook(HookPoint('post_change_branch_tip',
1848
"Called in bzr client and server after a change to the tip of a "
1849
"branch is made. post_change_branch_tip is called with a "
1850
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1851
"commit, uncommit will all trigger this hook.", (1, 4), None))
1852
self.create_hook(HookPoint('transform_fallback_location',
1853
"Called when a stacked branch is activating its fallback "
1854
"locations. transform_fallback_location is called with (branch, "
1855
"url), and should return a new url. Returning the same url "
1856
"allows it to be used as-is, returning a different one can be "
1857
"used to cause the branch to stack on a closer copy of that "
1858
"fallback_location. Note that the branch cannot have history "
1859
"accessing methods called on it during this hook because the "
1860
"fallback locations have not been activated. When there are "
1861
"multiple hooks installed for transform_fallback_location, "
1862
"all are called with the url returned from the previous hook."
1863
"The order is however undefined.", (1, 9), None))
1864
self.create_hook(HookPoint('automatic_tag_name',
1865
"Called to determine an automatic tag name for a revision. "
1866
"automatic_tag_name is called with (branch, revision_id) and "
1867
"should return a tag name or None if no tag name could be "
1868
"determined. The first non-None tag name returned will be used.",
1870
self.create_hook(HookPoint('post_branch_init',
1871
"Called after new branch initialization completes. "
1872
"post_branch_init is called with a "
1873
"bzrlib.branch.BranchInitHookParams. "
1874
"Note that init, branch and checkout (both heavyweight and "
1875
"lightweight) will all trigger this hook.", (2, 2), None))
1876
self.create_hook(HookPoint('post_switch',
1877
"Called after a checkout switches branch. "
1878
"post_switch is called with a "
1879
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1313
# Introduced in 0.15:
1314
# invoked whenever the revision history has been set
1315
# with set_revision_history. The api signature is
1316
# (branch, revision_history), and the branch will
1319
# Invoked after a branch is opened. The api signature is (branch).
1321
# invoked after a push operation completes.
1322
# the api signature is
1324
# containing the members
1325
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1326
# where local is the local target branch or None, master is the target
1327
# master branch, and the rest should be self explanatory. The source
1328
# is read locked and the target branches write locked. Source will
1329
# be the local low-latency branch.
1330
self['post_push'] = []
1331
# invoked after a pull operation completes.
1332
# the api signature is
1334
# containing the members
1335
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1336
# where local is the local branch or None, master is the target
1337
# master branch, and the rest should be self explanatory. The source
1338
# is read locked and the target branches write locked. The local
1339
# branch is the low-latency branch.
1340
self['post_pull'] = []
1341
# invoked before a commit operation takes place.
1342
# the api signature is
1343
# (local, master, old_revno, old_revid, future_revno, future_revid,
1344
# tree_delta, future_tree).
1345
# old_revid is NULL_REVISION for the first commit to a branch
1346
# tree_delta is a TreeDelta object describing changes from the basis
1347
# revision, hooks MUST NOT modify this delta
1348
# future_tree is an in-memory tree obtained from
1349
# CommitBuilder.revision_tree() and hooks MUST NOT modify this tree
1350
self['pre_commit'] = []
1351
# invoked after a commit operation completes.
1352
# the api signature is
1353
# (local, master, old_revno, old_revid, new_revno, new_revid)
1354
# old_revid is NULL_REVISION for the first commit to a branch.
1355
self['post_commit'] = []
1356
# invoked after a uncommit operation completes.
1357
# the api signature is
1358
# (local, master, old_revno, old_revid, new_revno, new_revid) where
1359
# local is the local branch or None, master is the target branch,
1360
# and an empty branch recieves new_revno of 0, new_revid of None.
1361
self['post_uncommit'] = []
1363
# Invoked before the tip of a branch changes.
1364
# the api signature is
1365
# (params) where params is a ChangeBranchTipParams with the members
1366
# (branch, old_revno, new_revno, old_revid, new_revid)
1367
self['pre_change_branch_tip'] = []
1369
# Invoked after the tip of a branch changes.
1370
# the api signature is
1371
# (params) where params is a ChangeBranchTipParams with the members
1372
# (branch, old_revno, new_revno, old_revid, new_revid)
1373
self['post_change_branch_tip'] = []
1375
# Invoked when a stacked branch activates its fallback locations and
1376
# allows the transformation of the url of said location.
1377
# the api signature is
1378
# (branch, url) where branch is the branch having its fallback
1379
# location activated and url is the url for the fallback location.
1380
# The hook should return a url.
1381
self['transform_fallback_location'] = []
1883
1384
# install the default hooks into the Branch class.
1922
1423
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1925
class BranchInitHookParams(object):
1926
"""Object holding parameters passed to *_branch_init hooks.
1928
There are 4 fields that hooks may wish to access:
1930
:ivar format: the branch format
1931
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1932
:ivar name: name of colocated branch, if any (or None)
1933
:ivar branch: the branch created
1935
Note that for lightweight checkouts, the bzrdir and format fields refer to
1936
the checkout, hence they are different from the corresponding fields in
1937
branch, which refer to the original branch.
1940
def __init__(self, format, a_bzrdir, name, branch):
1941
"""Create a group of BranchInitHook parameters.
1943
:param format: the branch format
1944
:param a_bzrdir: the BzrDir where the branch will be/has been
1946
:param name: name of colocated branch, if any (or None)
1947
:param branch: the branch created
1949
Note that for lightweight checkouts, the bzrdir and format fields refer
1950
to the checkout, hence they are different from the corresponding fields
1951
in branch, which refer to the original branch.
1953
self.format = format
1954
self.bzrdir = a_bzrdir
1956
self.branch = branch
1958
def __eq__(self, other):
1959
return self.__dict__ == other.__dict__
1962
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1965
class SwitchHookParams(object):
1966
"""Object holding parameters passed to *_switch hooks.
1968
There are 4 fields that hooks may wish to access:
1970
:ivar control_dir: BzrDir of the checkout to change
1971
:ivar to_branch: branch that the checkout is to reference
1972
:ivar force: skip the check for local commits in a heavy checkout
1973
:ivar revision_id: revision ID to switch to (or None)
1976
def __init__(self, control_dir, to_branch, force, revision_id):
1977
"""Create a group of SwitchHook parameters.
1979
:param control_dir: BzrDir of the checkout to change
1980
:param to_branch: branch that the checkout is to reference
1981
:param force: skip the check for local commits in a heavy checkout
1982
:param revision_id: revision ID to switch to (or None)
1984
self.control_dir = control_dir
1985
self.to_branch = to_branch
1987
self.revision_id = revision_id
1989
def __eq__(self, other):
1990
return self.__dict__ == other.__dict__
1993
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1994
self.control_dir, self.to_branch,
1998
1426
class BzrBranchFormat4(BranchFormat):
1999
1427
"""Bzr branch format 4.
2138
1571
"""See BranchFormat.get_format_description()."""
2139
1572
return "Branch format 6"
2141
def initialize(self, a_bzrdir, name=None):
2142
"""Create a branch of this format in a_bzrdir."""
2143
utf8_files = [('last-revision', '0 null:\n'),
2144
('branch.conf', ''),
2147
return self._initialize_helper(a_bzrdir, utf8_files, name)
2149
def make_tags(self, branch):
2150
"""See bzrlib.branch.BranchFormat.make_tags()."""
2151
return BasicTags(branch)
2153
def supports_set_append_revisions_only(self):
2157
class BzrBranchFormat8(BranchFormatMetadir):
2158
"""Metadir format supporting storing locations of subtree branches."""
2160
def _branch_class(self):
2163
def get_format_string(self):
2164
"""See BranchFormat.get_format_string()."""
2165
return "Bazaar Branch Format 8 (needs bzr 1.15)\n"
2167
def get_format_description(self):
2168
"""See BranchFormat.get_format_description()."""
2169
return "Branch format 8"
2171
def initialize(self, a_bzrdir, name=None):
2172
"""Create a branch of this format in a_bzrdir."""
2173
utf8_files = [('last-revision', '0 null:\n'),
2174
('branch.conf', ''),
2178
return self._initialize_helper(a_bzrdir, utf8_files, name)
2181
super(BzrBranchFormat8, self).__init__()
2182
self._matchingbzrdir.repository_format = \
2183
RepositoryFormatKnitPack5RichRoot()
2185
def make_tags(self, branch):
2186
"""See bzrlib.branch.BranchFormat.make_tags()."""
2187
return BasicTags(branch)
2189
def supports_set_append_revisions_only(self):
2192
def supports_stacking(self):
2195
supports_reference_locations = True
2198
class BzrBranchFormat7(BzrBranchFormat8):
1574
def initialize(self, a_bzrdir):
1575
"""Create a branch of this format in a_bzrdir."""
1576
utf8_files = [('last-revision', '0 null:\n'),
1577
('branch.conf', ''),
1580
return self._initialize_helper(a_bzrdir, utf8_files)
1583
class BzrBranchFormat7(BranchFormatMetadir):
2199
1584
"""Branch format with last-revision, tags, and a stacked location pointer.
2201
1586
The stacked location pointer is passed down to the repository and requires
2248
1636
"""See BranchFormat.get_format_description()."""
2249
1637
return "Checkout reference format 1"
2251
def get_reference(self, a_bzrdir, name=None):
1639
def get_reference(self, a_bzrdir):
2252
1640
"""See BranchFormat.get_reference()."""
2253
transport = a_bzrdir.get_branch_transport(None, name=name)
2254
return transport.get_bytes('location')
1641
transport = a_bzrdir.get_branch_transport(None)
1642
return transport.get('location').read()
2256
def set_reference(self, a_bzrdir, name, to_branch):
1644
def set_reference(self, a_bzrdir, to_branch):
2257
1645
"""See BranchFormat.set_reference()."""
2258
transport = a_bzrdir.get_branch_transport(None, name=name)
1646
transport = a_bzrdir.get_branch_transport(None)
2259
1647
location = transport.put_bytes('location', to_branch.base)
2261
def initialize(self, a_bzrdir, name=None, target_branch=None):
1649
def initialize(self, a_bzrdir, target_branch=None):
2262
1650
"""Create a branch of this format in a_bzrdir."""
2263
1651
if target_branch is None:
2264
1652
# this format does not implement branch itself, thus the implicit
2265
1653
# creation contract must see it as uninitializable
2266
1654
raise errors.UninitializableFormat(self)
2267
mutter('creating branch reference in %s', a_bzrdir.user_url)
2268
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1655
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1656
branch_transport = a_bzrdir.get_branch_transport(self)
2269
1657
branch_transport.put_bytes('location',
2270
target_branch.bzrdir.user_url)
1658
target_branch.bzrdir.root_transport.base)
2271
1659
branch_transport.put_bytes('format', self.get_format_string())
2273
a_bzrdir, name, _found=True,
1661
a_bzrdir, _found=True,
2274
1662
possible_transports=[target_branch.bzrdir.root_transport])
2275
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2278
1664
def __init__(self):
2279
1665
super(BranchReferenceFormat, self).__init__()
2285
1671
def clone(to_bzrdir, revision_id=None,
2286
1672
repository_policy=None):
2287
1673
"""See Branch.clone()."""
2288
return format.initialize(to_bzrdir, target_branch=a_branch)
1674
return format.initialize(to_bzrdir, a_branch)
2289
1675
# cannot obey revision_id limits when cloning a reference ...
2290
1676
# FIXME RBC 20060210 either nuke revision_id for clone, or
2291
1677
# emit some sort of warning/error to the caller ?!
2294
def open(self, a_bzrdir, name=None, _found=False, location=None,
2295
possible_transports=None, ignore_fallbacks=False):
1680
def open(self, a_bzrdir, _found=False, location=None,
1681
possible_transports=None):
2296
1682
"""Return the branch that the branch reference in a_bzrdir points at.
2298
:param a_bzrdir: A BzrDir that contains a branch.
2299
:param name: Name of colocated branch to open, if any
2300
:param _found: a private parameter, do not use it. It is used to
2301
indicate if format probing has already be done.
2302
:param ignore_fallbacks: when set, no fallback branches will be opened
2303
(if there are any). Default is to open fallbacks.
2304
:param location: The location of the referenced branch. If
2305
unspecified, this will be determined from the branch reference in
2307
:param possible_transports: An optional reusable transports list.
1684
_found is a private parameter, do not use it. It is used to indicate
1685
if format probing has already be done.
2310
format = BranchFormat.find_format(a_bzrdir, name=name)
1688
format = BranchFormat.find_format(a_bzrdir)
2311
1689
if format.__class__ != self.__class__:
2312
1690
raise AssertionError("wrong format %r found for %r" %
2313
1691
(format, self))
2314
1692
if location is None:
2315
location = self.get_reference(a_bzrdir, name)
1693
location = self.get_reference(a_bzrdir)
2316
1694
real_bzrdir = bzrdir.BzrDir.open(
2317
1695
location, possible_transports=possible_transports)
2318
result = real_bzrdir.open_branch(name=name,
2319
ignore_fallbacks=ignore_fallbacks)
1696
result = real_bzrdir.open_branch()
2320
1697
# this changes the behaviour of result.clone to create a new reference
2321
1698
# rather than a copy of the content of the branch.
2322
1699
# I did not use a proxy object because that needs much more extensive
2426
1776
base = property(_get_base, doc="The URL for the root of this branch.")
2428
def _get_config(self):
2429
return TransportConfig(self._transport, 'branch.conf')
2431
1778
def is_locked(self):
2432
1779
return self.control_files.is_locked()
2434
1781
def lock_write(self, token=None):
2435
"""Lock the branch for write operations.
2437
:param token: A token to permit reacquiring a previously held and
2439
:return: A BranchWriteLockResult.
2441
if not self.is_locked():
2442
self._note_lock('w')
2443
# All-in-one needs to always unlock/lock.
2444
repo_control = getattr(self.repository, 'control_files', None)
2445
if self.control_files == repo_control or not self.is_locked():
2446
self.repository._warn_if_deprecated(self)
2447
self.repository.lock_write()
1782
repo_token = self.repository.lock_write()
2452
return BranchWriteLockResult(self.unlock,
2453
self.control_files.lock_write(token=token))
1784
token = self.control_files.lock_write(token=token)
2456
self.repository.unlock()
1786
self.repository.unlock()
2459
1790
def lock_read(self):
2460
"""Lock the branch for read operations.
2462
:return: A bzrlib.lock.LogicalLockResult.
2464
if not self.is_locked():
2465
self._note_lock('r')
2466
# All-in-one needs to always unlock/lock.
2467
repo_control = getattr(self.repository, 'control_files', None)
2468
if self.control_files == repo_control or not self.is_locked():
2469
self.repository._warn_if_deprecated(self)
2470
self.repository.lock_read()
1791
self.repository.lock_read()
2475
1793
self.control_files.lock_read()
2476
return LogicalLockResult(self.unlock)
2479
self.repository.unlock()
1795
self.repository.unlock()
2482
@only_raises(errors.LockNotHeld, errors.LockBroken)
2483
1798
def unlock(self):
1799
# TODO: test for failed two phase locks. This is known broken.
2485
1801
self.control_files.unlock()
2487
# All-in-one needs to always unlock/lock.
2488
repo_control = getattr(self.repository, 'control_files', None)
2489
if (self.control_files == repo_control or
2490
not self.control_files.is_locked()):
2491
self.repository.unlock()
2492
if not self.control_files.is_locked():
2493
# we just released the lock
2494
self._clear_cached_state()
1803
self.repository.unlock()
1804
if not self.control_files.is_locked():
1805
# we just released the lock
1806
self._clear_cached_state()
2496
1808
def peek_lock_mode(self):
2497
1809
if self.control_files._lock_count == 0:
1984
def push(self, target, overwrite=False, stop_revision=None,
1985
_override_hook_source_branch=None):
1988
This is the basic concrete implementation of push()
1990
:param _override_hook_source_branch: If specified, run
1991
the hooks passing this Branch as the source, rather than self.
1992
This is for use of RemoteBranch, where push is delegated to the
1993
underlying vfs-based Branch.
1995
# TODO: Public option to disable running hooks - should be trivial but
1997
return _run_with_write_locked_target(
1998
target, self._push_with_bound_branches, target, overwrite,
2000
_override_hook_source_branch=_override_hook_source_branch)
2002
def _push_with_bound_branches(self, target, overwrite,
2004
_override_hook_source_branch=None):
2005
"""Push from self into target, and into target's master if any.
2007
This is on the base BzrBranch class even though it doesn't support
2008
bound branches because the *target* might be bound.
2011
if _override_hook_source_branch:
2012
result.source_branch = _override_hook_source_branch
2013
for hook in Branch.hooks['post_push']:
2016
bound_location = target.get_bound_location()
2017
if bound_location and target.base != bound_location:
2018
# there is a master branch.
2020
# XXX: Why the second check? Is it even supported for a branch to
2021
# be bound to itself? -- mbp 20070507
2022
master_branch = target.get_master_branch()
2023
master_branch.lock_write()
2025
# push into the master from this branch.
2026
self._basic_push(master_branch, overwrite, stop_revision)
2027
# and push into the target branch from this. Note that we push from
2028
# this branch again, because its considered the highest bandwidth
2030
result = self._basic_push(target, overwrite, stop_revision)
2031
result.master_branch = master_branch
2032
result.local_branch = target
2036
master_branch.unlock()
2039
result = self._basic_push(target, overwrite, stop_revision)
2040
# TODO: Why set master_branch and local_branch if there's no
2041
# binding? Maybe cleaner to just leave them unset? -- mbp
2043
result.master_branch = target
2044
result.local_branch = None
2628
2048
def _basic_push(self, target, overwrite, stop_revision):
2629
2049
"""Basic implementation of push without bound branches or hooks.
2631
Must be called with source read locked and target write locked.
2051
Must be called with self read locked and target write locked.
2633
result = BranchPushResult()
2053
result = PushResult()
2634
2054
result.source_branch = self
2635
2055
result.target_branch = target
2636
2056
result.old_revno, result.old_revid = target.last_revision_info()
2637
self.update_references(target)
2638
2057
if result.old_revid != self.last_revision():
2639
2058
# We assume that during 'push' this repository is closer than
2641
2060
graph = self.repository.get_graph(target.repository)
2642
target.update_revisions(self, stop_revision,
2643
overwrite=overwrite, graph=graph)
2061
target.update_revisions(self, stop_revision, overwrite=overwrite,
2644
2063
if self._push_should_merge_tags():
2645
result.tag_conflicts = self.tags.merge_to(target.tags,
2064
result.tag_conflicts = self.tags.merge_to(target.tags, overwrite)
2647
2065
result.new_revno, result.new_revid = target.last_revision_info()
2068
def get_parent(self):
2069
"""See Branch.get_parent."""
2070
parent = self._get_parent_location()
2073
# This is an old-format absolute path to a local branch
2074
# turn it into a url
2075
if parent.startswith('/'):
2076
parent = urlutils.local_path_to_url(parent.decode('utf8'))
2078
return urlutils.join(self.base[:-1], parent)
2079
except errors.InvalidURLJoin, e:
2080
raise errors.InaccessibleParent(parent, self.base)
2650
2082
def get_stacked_on_url(self):
2651
raise errors.UnstackableBranchFormat(self._format, self.user_url)
2083
raise errors.UnstackableBranchFormat(self._format, self.base)
2653
2085
def set_push_location(self, location):
2654
2086
"""See Branch.set_push_location."""
2879
2404
"""Set the parent branch"""
2880
2405
return self._get_config_location('parent_location')
2883
def _set_all_reference_info(self, info_dict):
2884
"""Replace all reference info stored in a branch.
2886
:param info_dict: A dict of {file_id: (tree_path, branch_location)}
2889
writer = rio.RioWriter(s)
2890
for key, (tree_path, branch_location) in info_dict.iteritems():
2891
stanza = rio.Stanza(file_id=key, tree_path=tree_path,
2892
branch_location=branch_location)
2893
writer.write_stanza(stanza)
2894
self._transport.put_bytes('references', s.getvalue())
2895
self._reference_info = info_dict
2898
def _get_all_reference_info(self):
2899
"""Return all the reference info stored in a branch.
2901
:return: A dict of {file_id: (tree_path, branch_location)}
2903
if self._reference_info is not None:
2904
return self._reference_info
2905
rio_file = self._transport.get('references')
2907
stanzas = rio.read_stanzas(rio_file)
2908
info_dict = dict((s['file_id'], (s['tree_path'],
2909
s['branch_location'])) for s in stanzas)
2912
self._reference_info = info_dict
2915
def set_reference_info(self, file_id, tree_path, branch_location):
2916
"""Set the branch location to use for a tree reference.
2918
:param file_id: The file-id of the tree reference.
2919
:param tree_path: The path of the tree reference in the tree.
2920
:param branch_location: The location of the branch to retrieve tree
2923
info_dict = self._get_all_reference_info()
2924
info_dict[file_id] = (tree_path, branch_location)
2925
if None in (tree_path, branch_location):
2926
if tree_path is not None:
2927
raise ValueError('tree_path must be None when branch_location'
2929
if branch_location is not None:
2930
raise ValueError('branch_location must be None when tree_path'
2932
del info_dict[file_id]
2933
self._set_all_reference_info(info_dict)
2935
def get_reference_info(self, file_id):
2936
"""Get the tree_path and branch_location for a tree reference.
2938
:return: a tuple of (tree_path, branch_location)
2940
return self._get_all_reference_info().get(file_id, (None, None))
2942
def reference_parent(self, file_id, path, possible_transports=None):
2943
"""Return the parent branch for a tree-reference file_id.
2945
:param file_id: The file_id of the tree reference
2946
:param path: The path of the file_id in the tree
2947
:return: A branch associated with the file_id
2949
branch_location = self.get_reference_info(file_id)[1]
2950
if branch_location is None:
2951
return Branch.reference_parent(self, file_id, path,
2952
possible_transports)
2953
branch_location = urlutils.join(self.user_url, branch_location)
2954
return Branch.open(branch_location,
2955
possible_transports=possible_transports)
2957
2407
def set_push_location(self, location):
2958
2408
"""See Branch.set_push_location."""
2959
2409
self._set_config_location('push_location', location)
3301
2742
raise NotImplementedError(self.update_revisions)
3304
def push(self, overwrite=False, stop_revision=None,
3305
_override_hook_source_branch=None):
3306
"""Mirror the source branch into the target branch.
3308
The source branch is considered to be 'local', having low latency.
3310
raise NotImplementedError(self.push)
3313
def copy_content_into(self, revision_id=None):
3314
"""Copy the content of source into target
3316
revision_id: if not None, the revision history in the new branch will
3317
be truncated to end with revision_id.
3319
raise NotImplementedError(self.copy_content_into)
3322
2745
class GenericInterBranch(InterBranch):
3323
"""InterBranch implementation that uses public Branch functions."""
3326
def is_compatible(klass, source, target):
3327
# GenericBranch uses the public API, so always compatible
3331
def _get_branch_formats_to_test(klass):
3332
return [(BranchFormat._default_format, BranchFormat._default_format)]
3335
def unwrap_format(klass, format):
3336
if isinstance(format, remote.RemoteBranchFormat):
3337
format._ensure_real()
3338
return format._custom_format
3342
def copy_content_into(self, revision_id=None):
3343
"""Copy the content of source into target
3345
revision_id: if not None, the revision history in the new branch will
3346
be truncated to end with revision_id.
3348
self.source.update_references(self.target)
3349
self.source._synchronize_history(self.target, revision_id)
3351
parent = self.source.get_parent()
3352
except errors.InaccessibleParent, e:
3353
mutter('parent was not accessible to copy: %s', e)
3356
self.target.set_parent(parent)
3357
if self.source._push_should_merge_tags():
3358
self.source.tags.merge_to(self.target.tags)
2746
"""InterBranch implementation that uses public Branch functions.
2750
def _get_branch_formats_to_test():
2751
return BranchFormat._default_format, BranchFormat._default_format
3361
2753
def update_revisions(self, stop_revision=None, overwrite=False,
3363
2755
"""See InterBranch.update_revisions()."""
3364
other_revno, other_last_revision = self.source.last_revision_info()
3365
stop_revno = None # unknown
3366
if stop_revision is None:
3367
stop_revision = other_last_revision
3368
if _mod_revision.is_null(stop_revision):
3369
# if there are no commits, we're done.
3371
stop_revno = other_revno
3373
# what's the current last revision, before we fetch [and change it
3375
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3376
# we fetch here so that we don't process data twice in the common
3377
# case of having something to pull, and so that the check for
3378
# already merged can operate on the just fetched graph, which will
3379
# be cached in memory.
3380
self.target.fetch(self.source, stop_revision)
3381
# Check to see if one is an ancestor of the other
3384
graph = self.target.repository.get_graph()
3385
if self.target._check_if_descendant_or_diverged(
3386
stop_revision, last_rev, graph, self.source):
3387
# stop_revision is a descendant of last_rev, but we aren't
3388
# overwriting, so we're done.
3390
if stop_revno is None:
3392
graph = self.target.repository.get_graph()
3393
this_revno, this_last_revision = \
3394
self.target.last_revision_info()
3395
stop_revno = graph.find_distance_to_null(stop_revision,
3396
[(other_last_revision, other_revno),
3397
(this_last_revision, this_revno)])
3398
self.target.set_last_revision_info(stop_revno, stop_revision)
3401
def pull(self, overwrite=False, stop_revision=None,
3402
possible_transports=None, run_hooks=True,
3403
_override_hook_target=None, local=False):
3404
"""Pull from source into self, updating my master if any.
3406
:param run_hooks: Private parameter - if false, this branch
3407
is being called because it's the master of the primary branch,
3408
so it should not run its hooks.
3410
bound_location = self.target.get_bound_location()
3411
if local and not bound_location:
3412
raise errors.LocalRequiresBoundBranch()
3413
master_branch = None
3414
if not local and bound_location and self.source.user_url != bound_location:
3415
# not pulling from master, so we need to update master.
3416
master_branch = self.target.get_master_branch(possible_transports)
3417
master_branch.lock_write()
3420
# pull from source into master.
3421
master_branch.pull(self.source, overwrite, stop_revision,
3423
return self._pull(overwrite,
3424
stop_revision, _hook_master=master_branch,
3425
run_hooks=run_hooks,
3426
_override_hook_target=_override_hook_target)
3429
master_branch.unlock()
3431
def push(self, overwrite=False, stop_revision=None,
3432
_override_hook_source_branch=None):
3433
"""See InterBranch.push.
3435
This is the basic concrete implementation of push()
3437
:param _override_hook_source_branch: If specified, run
3438
the hooks passing this Branch as the source, rather than self.
3439
This is for use of RemoteBranch, where push is delegated to the
3440
underlying vfs-based Branch.
3442
# TODO: Public option to disable running hooks - should be trivial but
3444
self.source.lock_read()
3446
return _run_with_write_locked_target(
3447
self.target, self._push_with_bound_branches, overwrite,
3449
_override_hook_source_branch=_override_hook_source_branch)
3451
self.source.unlock()
3453
def _push_with_bound_branches(self, overwrite, stop_revision,
3454
_override_hook_source_branch=None):
3455
"""Push from source into target, and into target's master if any.
3458
if _override_hook_source_branch:
3459
result.source_branch = _override_hook_source_branch
3460
for hook in Branch.hooks['post_push']:
3463
bound_location = self.target.get_bound_location()
3464
if bound_location and self.target.base != bound_location:
3465
# there is a master branch.
3467
# XXX: Why the second check? Is it even supported for a branch to
3468
# be bound to itself? -- mbp 20070507
3469
master_branch = self.target.get_master_branch()
3470
master_branch.lock_write()
3472
# push into the master from the source branch.
3473
self.source._basic_push(master_branch, overwrite, stop_revision)
3474
# and push into the target branch from the source. Note that we
3475
# push from the source branch again, because its considered the
3476
# highest bandwidth repository.
3477
result = self.source._basic_push(self.target, overwrite,
3479
result.master_branch = master_branch
3480
result.local_branch = self.target
3484
master_branch.unlock()
3487
result = self.source._basic_push(self.target, overwrite,
3489
# TODO: Why set master_branch and local_branch if there's no
3490
# binding? Maybe cleaner to just leave them unset? -- mbp
3492
result.master_branch = self.target
3493
result.local_branch = None
3497
def _pull(self, overwrite=False, stop_revision=None,
3498
possible_transports=None, _hook_master=None, run_hooks=True,
3499
_override_hook_target=None, local=False):
3502
This function is the core worker, used by GenericInterBranch.pull to
3503
avoid duplication when pulling source->master and source->local.
3505
:param _hook_master: Private parameter - set the branch to
3506
be supplied as the master to pull hooks.
3507
:param run_hooks: Private parameter - if false, this branch
3508
is being called because it's the master of the primary branch,
3509
so it should not run its hooks.
3510
:param _override_hook_target: Private parameter - set the branch to be
3511
supplied as the target_branch to pull hooks.
3512
:param local: Only update the local branch, and not the bound branch.
3514
# This type of branch can't be bound.
3516
raise errors.LocalRequiresBoundBranch()
3517
result = PullResult()
3518
result.source_branch = self.source
3519
if _override_hook_target is None:
3520
result.target_branch = self.target
3522
result.target_branch = _override_hook_target
3523
self.source.lock_read()
3525
# We assume that during 'pull' the target repository is closer than
3527
self.source.update_references(self.target)
3528
graph = self.target.repository.get_graph(self.source.repository)
3529
# TODO: Branch formats should have a flag that indicates
3530
# that revno's are expensive, and pull() should honor that flag.
3532
result.old_revno, result.old_revid = \
3533
self.target.last_revision_info()
3534
self.target.update_revisions(self.source, stop_revision,
3535
overwrite=overwrite, graph=graph)
3536
# TODO: The old revid should be specified when merging tags,
3537
# so a tags implementation that versions tags can only
3538
# pull in the most recent changes. -- JRV20090506
3539
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3541
result.new_revno, result.new_revid = self.target.last_revision_info()
3543
result.master_branch = _hook_master
3544
result.local_branch = result.target_branch
3546
result.master_branch = result.target_branch
3547
result.local_branch = None
3549
for hook in Branch.hooks['post_pull']:
3552
self.source.unlock()
2756
self.source.lock_read()
2758
other_revno, other_last_revision = self.source.last_revision_info()
2759
stop_revno = None # unknown
2760
if stop_revision is None:
2761
stop_revision = other_last_revision
2762
if _mod_revision.is_null(stop_revision):
2763
# if there are no commits, we're done.
2765
stop_revno = other_revno
2767
# what's the current last revision, before we fetch [and change it
2769
last_rev = _mod_revision.ensure_null(self.target.last_revision())
2770
# we fetch here so that we don't process data twice in the common
2771
# case of having something to pull, and so that the check for
2772
# already merged can operate on the just fetched graph, which will
2773
# be cached in memory.
2774
self.target.fetch(self.source, stop_revision)
2775
# Check to see if one is an ancestor of the other
2778
graph = self.target.repository.get_graph()
2779
if self.target._check_if_descendant_or_diverged(
2780
stop_revision, last_rev, graph, self.source):
2781
# stop_revision is a descendant of last_rev, but we aren't
2782
# overwriting, so we're done.
2784
if stop_revno is None:
2786
graph = self.target.repository.get_graph()
2787
this_revno, this_last_revision = \
2788
self.target.last_revision_info()
2789
stop_revno = graph.find_distance_to_null(stop_revision,
2790
[(other_last_revision, other_revno),
2791
(this_last_revision, this_revno)])
2792
self.target.set_last_revision_info(stop_revno, stop_revision)
2794
self.source.unlock()
2797
def is_compatible(self, source, target):
2798
# GenericBranch uses the public API, so always compatible
3556
2802
InterBranch.register_optimiser(GenericInterBranch)
added
removed
bzrlib/branch.py
