782
817
old_repository = self.repository
783
818
if len(old_repository._fallback_repositories) != 1:
784
819
raise AssertionError("can't cope with fallback repositories "
785
"of %r" % (self.repository,))
786
# unlock it, including unlocking the fallback
820
"of %r (fallbacks: %r)" % (old_repository,
821
old_repository._fallback_repositories))
822
# Open the new repository object.
823
# Repositories don't offer an interface to remove fallback
824
# repositories today; take the conceptually simpler option and just
825
# reopen it. We reopen it starting from the URL so that we
826
# get a separate connection for RemoteRepositories and can
827
# stream from one of them to the other. This does mean doing
828
# separate SSH connection setup, but unstacking is not a
829
# common operation so it's tolerable.
830
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
831
new_repository = new_bzrdir.find_repository()
832
if new_repository._fallback_repositories:
833
raise AssertionError("didn't expect %r to have "
834
"fallback_repositories"
835
% (self.repository,))
836
# Replace self.repository with the new repository.
837
# Do our best to transfer the lock state (i.e. lock-tokens and
838
# lock count) of self.repository to the new repository.
839
lock_token = old_repository.lock_write().repository_token
840
self.repository = new_repository
841
if isinstance(self, remote.RemoteBranch):
842
# Remote branches can have a second reference to the old
843
# repository that need to be replaced.
844
if self._real_branch is not None:
845
self._real_branch.repository = new_repository
846
self.repository.lock_write(token=lock_token)
847
if lock_token is not None:
848
old_repository.leave_lock_in_place()
787
849
old_repository.unlock()
850
if lock_token is not None:
851
# XXX: self.repository.leave_lock_in_place() before this
852
# function will not be preserved. Fortunately that doesn't
853
# affect the current default format (2a), and would be a
854
# corner-case anyway.
855
# - Andrew Bennetts, 2010/06/30
856
self.repository.dont_leave_lock_in_place()
860
old_repository.unlock()
861
except errors.LockNotHeld:
864
if old_lock_count == 0:
865
raise AssertionError(
866
'old_repository should have been locked at least once.')
867
for i in range(old_lock_count-1):
868
self.repository.lock_write()
869
# Fetch from the old repository into the new.
788
870
old_repository.lock_read()
790
# Repositories don't offer an interface to remove fallback
791
# repositories today; take the conceptually simpler option and just
792
# reopen it. We reopen it starting from the URL so that we
793
# get a separate connection for RemoteRepositories and can
794
# stream from one of them to the other. This does mean doing
795
# separate SSH connection setup, but unstacking is not a
796
# common operation so it's tolerable.
797
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
798
new_repository = new_bzrdir.find_repository()
799
self.repository = new_repository
800
if self.repository._fallback_repositories:
801
raise AssertionError("didn't expect %r to have "
802
"fallback_repositories"
803
% (self.repository,))
804
# this is not paired with an unlock because it's just restoring
805
# the previous state; the lock's released when set_stacked_on_url
807
self.repository.lock_write()
808
872
# XXX: If you unstack a branch while it has a working tree
809
873
# with a pending merge, the pending-merged revisions will no
810
874
# longer be present. You can (probably) revert and remerge.
812
# XXX: This only fetches up to the tip of the repository; it
813
# doesn't bring across any tags. That's fairly consistent
814
# with how branch works, but perhaps not ideal.
815
self.repository.fetch(old_repository,
816
revision_id=self.last_revision(),
876
tags_to_fetch = set(self.tags.get_reverse_tag_dict())
877
except errors.TagsNotSupported:
878
tags_to_fetch = set()
879
fetch_spec = _mod_graph.NotInOtherForRevs(self.repository,
880
old_repository, required_ids=[self.last_revision()],
881
if_present_ids=tags_to_fetch, find_ghosts=True).execute()
882
self.repository.fetch(old_repository, fetch_spec=fetch_spec)
819
884
old_repository.unlock()
1562
1653
for hook in hooks:
1565
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1566
lock_type='metadir', set_format=True):
1567
"""Initialize a branch in a bzrdir, with specified files
1569
:param a_bzrdir: The bzrdir to initialize the branch in
1570
:param utf8_files: The files to create as a list of
1571
(filename, content) tuples
1572
:param name: Name of colocated branch to create, if any
1573
:param set_format: If True, set the format with
1574
self.get_format_string. (BzrBranch4 has its format set
1576
:return: a branch in this format
1578
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1579
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1581
'metadir': ('lock', lockdir.LockDir),
1582
'branch4': ('branch-lock', lockable_files.TransportLock),
1584
lock_name, lock_class = lock_map[lock_type]
1585
control_files = lockable_files.LockableFiles(branch_transport,
1586
lock_name, lock_class)
1587
control_files.create_lock()
1589
control_files.lock_write()
1590
except errors.LockContention:
1591
if lock_type != 'branch4':
1597
utf8_files += [('format', self.get_format_string())]
1599
for (filename, content) in utf8_files:
1600
branch_transport.put_bytes(
1602
mode=a_bzrdir._get_file_mode())
1605
control_files.unlock()
1606
branch = self.open(a_bzrdir, name, _found=True)
1607
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
1610
def initialize(self, a_bzrdir, name=None):
1656
def initialize(self, a_bzrdir, name=None, repository=None):
1611
1657
"""Create a branch of this format in a_bzrdir.
1613
1659
:param name: Name of the colocated branch to create.
1704
1787
These are all empty initially, because by default nothing should get
1707
Hooks.__init__(self)
1708
self.create_hook(HookPoint('set_rh',
1790
Hooks.__init__(self, "bzrlib.branch", "Branch.hooks")
1791
self.add_hook('set_rh',
1709
1792
"Invoked whenever the revision history has been set via "
1710
1793
"set_revision_history. The api signature is (branch, "
1711
1794
"revision_history), and the branch will be write-locked. "
1712
1795
"The set_rh hook can be expensive for bzr to trigger, a better "
1713
"hook to use is Branch.post_change_branch_tip.", (0, 15), None))
1714
self.create_hook(HookPoint('open',
1796
"hook to use is Branch.post_change_branch_tip.", (0, 15))
1797
self.add_hook('open',
1715
1798
"Called with the Branch object that has been opened after a "
1716
"branch is opened.", (1, 8), None))
1717
self.create_hook(HookPoint('post_push',
1799
"branch is opened.", (1, 8))
1800
self.add_hook('post_push',
1718
1801
"Called after a push operation completes. post_push is called "
1719
1802
"with a bzrlib.branch.BranchPushResult object and only runs in the "
1720
"bzr client.", (0, 15), None))
1721
self.create_hook(HookPoint('post_pull',
1803
"bzr client.", (0, 15))
1804
self.add_hook('post_pull',
1722
1805
"Called after a pull operation completes. post_pull is called "
1723
1806
"with a bzrlib.branch.PullResult object and only runs in the "
1724
"bzr client.", (0, 15), None))
1725
self.create_hook(HookPoint('pre_commit',
1726
"Called after a commit is calculated but before it is is "
1807
"bzr client.", (0, 15))
1808
self.add_hook('pre_commit',
1809
"Called after a commit is calculated but before it is "
1727
1810
"completed. pre_commit is called with (local, master, old_revno, "
1728
1811
"old_revid, future_revno, future_revid, tree_delta, future_tree"
1729
1812
"). old_revid is NULL_REVISION for the first commit to a branch, "
1731
1814
"basis revision. hooks MUST NOT modify this delta. "
1732
1815
" future_tree is an in-memory tree obtained from "
1733
1816
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1734
"tree.", (0,91), None))
1735
self.create_hook(HookPoint('post_commit',
1818
self.add_hook('post_commit',
1736
1819
"Called in the bzr client after a commit has completed. "
1737
1820
"post_commit is called with (local, master, old_revno, old_revid, "
1738
1821
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1739
"commit to a branch.", (0, 15), None))
1740
self.create_hook(HookPoint('post_uncommit',
1822
"commit to a branch.", (0, 15))
1823
self.add_hook('post_uncommit',
1741
1824
"Called in the bzr client after an uncommit completes. "
1742
1825
"post_uncommit is called with (local, master, old_revno, "
1743
1826
"old_revid, new_revno, new_revid) where local is the local branch "
1744
1827
"or None, master is the target branch, and an empty branch "
1745
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1746
self.create_hook(HookPoint('pre_change_branch_tip',
1828
"receives new_revno of 0, new_revid of None.", (0, 15))
1829
self.add_hook('pre_change_branch_tip',
1747
1830
"Called in bzr client and server before a change to the tip of a "
1748
1831
"branch is made. pre_change_branch_tip is called with a "
1749
1832
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1750
"commit, uncommit will all trigger this hook.", (1, 6), None))
1751
self.create_hook(HookPoint('post_change_branch_tip',
1833
"commit, uncommit will all trigger this hook.", (1, 6))
1834
self.add_hook('post_change_branch_tip',
1752
1835
"Called in bzr client and server after a change to the tip of a "
1753
1836
"branch is made. post_change_branch_tip is called with a "
1754
1837
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1755
"commit, uncommit will all trigger this hook.", (1, 4), None))
1756
self.create_hook(HookPoint('transform_fallback_location',
1838
"commit, uncommit will all trigger this hook.", (1, 4))
1839
self.add_hook('transform_fallback_location',
1757
1840
"Called when a stacked branch is activating its fallback "
1758
1841
"locations. transform_fallback_location is called with (branch, "
1759
1842
"url), and should return a new url. Returning the same url "
1764
1847
"fallback locations have not been activated. When there are "
1765
1848
"multiple hooks installed for transform_fallback_location, "
1766
1849
"all are called with the url returned from the previous hook."
1767
"The order is however undefined.", (1, 9), None))
1768
self.create_hook(HookPoint('automatic_tag_name',
1769
"Called to determine an automatic tag name for a revision."
1850
"The order is however undefined.", (1, 9))
1851
self.add_hook('automatic_tag_name',
1852
"Called to determine an automatic tag name for a revision. "
1770
1853
"automatic_tag_name is called with (branch, revision_id) and "
1771
1854
"should return a tag name or None if no tag name could be "
1772
1855
"determined. The first non-None tag name returned will be used.",
1774
self.create_hook(HookPoint('post_branch_init',
1857
self.add_hook('post_branch_init',
1775
1858
"Called after new branch initialization completes. "
1776
1859
"post_branch_init is called with a "
1777
1860
"bzrlib.branch.BranchInitHookParams. "
1778
1861
"Note that init, branch and checkout (both heavyweight and "
1779
"lightweight) will all trigger this hook.", (2, 2), None))
1780
self.create_hook(HookPoint('post_switch',
1862
"lightweight) will all trigger this hook.", (2, 2))
1863
self.add_hook('post_switch',
1781
1864
"Called after a checkout switches branch. "
1782
1865
"post_switch is called with a "
1783
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1866
"bzrlib.branch.SwitchHookParams.", (2, 2))
3182
3326
raise NotImplementedError(self.push)
3329
def copy_content_into(self, revision_id=None):
3330
"""Copy the content of source into target
3332
revision_id: if not None, the revision history in the new branch will
3333
be truncated to end with revision_id.
3335
raise NotImplementedError(self.copy_content_into)
3338
def fetch(self, stop_revision=None, fetch_spec=None):
3341
:param stop_revision: Last revision to fetch
3342
:param fetch_spec: Fetch spec.
3344
raise NotImplementedError(self.fetch)
3185
3347
class GenericInterBranch(InterBranch):
3186
"""InterBranch implementation that uses public Branch functions.
3190
def _get_branch_formats_to_test():
3191
return BranchFormat._default_format, BranchFormat._default_format
3348
"""InterBranch implementation that uses public Branch functions."""
3351
def is_compatible(klass, source, target):
3352
# GenericBranch uses the public API, so always compatible
3356
def _get_branch_formats_to_test(klass):
3357
return [(format_registry.get_default(), format_registry.get_default())]
3360
def unwrap_format(klass, format):
3361
if isinstance(format, remote.RemoteBranchFormat):
3362
format._ensure_real()
3363
return format._custom_format
3367
def copy_content_into(self, revision_id=None):
3368
"""Copy the content of source into target
3370
revision_id: if not None, the revision history in the new branch will
3371
be truncated to end with revision_id.
3373
self.source.update_references(self.target)
3374
self.source._synchronize_history(self.target, revision_id)
3376
parent = self.source.get_parent()
3377
except errors.InaccessibleParent, e:
3378
mutter('parent was not accessible to copy: %s', e)
3381
self.target.set_parent(parent)
3382
if self.source._push_should_merge_tags():
3383
self.source.tags.merge_to(self.target.tags)
3386
def fetch(self, stop_revision=None, fetch_spec=None):
3387
if fetch_spec is not None and stop_revision is not None:
3388
raise AssertionError(
3389
"fetch_spec and last_revision are mutually exclusive.")
3390
if self.target.base == self.source.base:
3392
self.source.lock_read()
3394
if stop_revision is None and fetch_spec is None:
3395
stop_revision = self.source.last_revision()
3396
stop_revision = _mod_revision.ensure_null(stop_revision)
3397
return self.target.repository.fetch(self.source.repository,
3398
revision_id=stop_revision, fetch_spec=fetch_spec)
3400
self.source.unlock()
3193
3403
def update_revisions(self, stop_revision=None, overwrite=False,
3404
graph=None, fetch_tags=True):
3195
3405
"""See InterBranch.update_revisions()."""
3196
self.source.lock_read()
3198
other_revno, other_last_revision = self.source.last_revision_info()
3199
stop_revno = None # unknown
3200
if stop_revision is None:
3201
stop_revision = other_last_revision
3202
if _mod_revision.is_null(stop_revision):
3203
# if there are no commits, we're done.
3205
stop_revno = other_revno
3207
# what's the current last revision, before we fetch [and change it
3209
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3210
# we fetch here so that we don't process data twice in the common
3211
# case of having something to pull, and so that the check for
3212
# already merged can operate on the just fetched graph, which will
3213
# be cached in memory.
3214
self.target.fetch(self.source, stop_revision)
3215
# Check to see if one is an ancestor of the other
3218
graph = self.target.repository.get_graph()
3219
if self.target._check_if_descendant_or_diverged(
3220
stop_revision, last_rev, graph, self.source):
3221
# stop_revision is a descendant of last_rev, but we aren't
3222
# overwriting, so we're done.
3224
if stop_revno is None:
3226
graph = self.target.repository.get_graph()
3227
this_revno, this_last_revision = \
3228
self.target.last_revision_info()
3229
stop_revno = graph.find_distance_to_null(stop_revision,
3230
[(other_last_revision, other_revno),
3231
(this_last_revision, this_revno)])
3232
self.target.set_last_revision_info(stop_revno, stop_revision)
3234
self.source.unlock()
3406
other_revno, other_last_revision = self.source.last_revision_info()
3407
stop_revno = None # unknown
3408
if stop_revision is None:
3409
stop_revision = other_last_revision
3410
if _mod_revision.is_null(stop_revision):
3411
# if there are no commits, we're done.
3413
stop_revno = other_revno
3415
# what's the current last revision, before we fetch [and change it
3417
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3418
# we fetch here so that we don't process data twice in the common
3419
# case of having something to pull, and so that the check for
3420
# already merged can operate on the just fetched graph, which will
3421
# be cached in memory.
3423
fetch_spec_factory = fetch.FetchSpecFactory()
3424
fetch_spec_factory.source_branch = self.source
3425
fetch_spec_factory.source_branch_stop_revision_id = stop_revision
3426
fetch_spec_factory.source_repo = self.source.repository
3427
fetch_spec_factory.target_repo = self.target.repository
3428
fetch_spec_factory.target_repo_kind = fetch.TargetRepoKinds.PREEXISTING
3429
fetch_spec = fetch_spec_factory.make_fetch_spec()
3431
fetch_spec = _mod_graph.NotInOtherForRevs(self.target.repository,
3432
self.source.repository, revision_ids=[stop_revision]).execute()
3433
self.target.fetch(self.source, fetch_spec=fetch_spec)
3434
# Check to see if one is an ancestor of the other
3437
graph = self.target.repository.get_graph()
3438
if self.target._check_if_descendant_or_diverged(
3439
stop_revision, last_rev, graph, self.source):
3440
# stop_revision is a descendant of last_rev, but we aren't
3441
# overwriting, so we're done.
3443
if stop_revno is None:
3445
graph = self.target.repository.get_graph()
3446
this_revno, this_last_revision = \
3447
self.target.last_revision_info()
3448
stop_revno = graph.find_distance_to_null(stop_revision,
3449
[(other_last_revision, other_revno),
3450
(this_last_revision, this_revno)])
3451
self.target.set_last_revision_info(stop_revno, stop_revision)
3236
3454
def pull(self, overwrite=False, stop_revision=None,
3237
possible_transports=None, _hook_master=None, run_hooks=True,
3455
possible_transports=None, run_hooks=True,
3238
3456
_override_hook_target=None, local=False):
3457
"""Pull from source into self, updating my master if any.
3241
:param _hook_master: Private parameter - set the branch to
3242
be supplied as the master to pull hooks.
3243
3459
:param run_hooks: Private parameter - if false, this branch
3244
3460
is being called because it's the master of the primary branch,
3245
3461
so it should not run its hooks.
3246
:param _override_hook_target: Private parameter - set the branch to be
3247
supplied as the target_branch to pull hooks.
3248
:param local: Only update the local branch, and not the bound branch.
3250
# This type of branch can't be bound.
3463
bound_location = self.target.get_bound_location()
3464
if local and not bound_location:
3252
3465
raise errors.LocalRequiresBoundBranch()
3253
result = PullResult()
3254
result.source_branch = self.source
3255
if _override_hook_target is None:
3256
result.target_branch = self.target
3258
result.target_branch = _override_hook_target
3259
self.source.lock_read()
3466
master_branch = None
3467
source_is_master = (self.source.user_url == bound_location)
3468
if not local and bound_location and not source_is_master:
3469
# not pulling from master, so we need to update master.
3470
master_branch = self.target.get_master_branch(possible_transports)
3471
master_branch.lock_write()
3261
# We assume that during 'pull' the target repository is closer than
3263
self.source.update_references(self.target)
3264
graph = self.target.repository.get_graph(self.source.repository)
3265
# TODO: Branch formats should have a flag that indicates
3266
# that revno's are expensive, and pull() should honor that flag.
3268
result.old_revno, result.old_revid = \
3269
self.target.last_revision_info()
3270
self.target.update_revisions(self.source, stop_revision,
3271
overwrite=overwrite, graph=graph)
3272
# TODO: The old revid should be specified when merging tags,
3273
# so a tags implementation that versions tags can only
3274
# pull in the most recent changes. -- JRV20090506
3275
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3277
result.new_revno, result.new_revid = self.target.last_revision_info()
3279
result.master_branch = _hook_master
3280
result.local_branch = result.target_branch
3282
result.master_branch = result.target_branch
3283
result.local_branch = None
3285
for hook in Branch.hooks['post_pull']:
3474
# pull from source into master.
3475
master_branch.pull(self.source, overwrite, stop_revision,
3477
return self._pull(overwrite,
3478
stop_revision, _hook_master=master_branch,
3479
run_hooks=run_hooks,
3480
_override_hook_target=_override_hook_target,
3481
merge_tags_to_master=not source_is_master)
3288
self.source.unlock()
3484
master_branch.unlock()
3291
3486
def push(self, overwrite=False, stop_revision=None,
3292
3487
_override_hook_source_branch=None):
3358
def is_compatible(self, source, target):
3359
# GenericBranch uses the public API, so always compatible
3363
class InterToBranch5(GenericInterBranch):
3366
def _get_branch_formats_to_test():
3367
return BranchFormat._default_format, BzrBranchFormat5()
3369
def pull(self, overwrite=False, stop_revision=None,
3370
possible_transports=None, run_hooks=True,
3371
_override_hook_target=None, local=False):
3372
"""Pull from source into self, updating my master if any.
3552
def _pull(self, overwrite=False, stop_revision=None,
3553
possible_transports=None, _hook_master=None, run_hooks=True,
3554
_override_hook_target=None, local=False,
3555
merge_tags_to_master=True):
3558
This function is the core worker, used by GenericInterBranch.pull to
3559
avoid duplication when pulling source->master and source->local.
3561
:param _hook_master: Private parameter - set the branch to
3562
be supplied as the master to pull hooks.
3374
3563
:param run_hooks: Private parameter - if false, this branch
3375
3564
is being called because it's the master of the primary branch,
3376
3565
so it should not run its hooks.
3566
is being called because it's the master of the primary branch,
3567
so it should not run its hooks.
3568
:param _override_hook_target: Private parameter - set the branch to be
3569
supplied as the target_branch to pull hooks.
3570
:param local: Only update the local branch, and not the bound branch.
3378
bound_location = self.target.get_bound_location()
3379
if local and not bound_location:
3572
# This type of branch can't be bound.
3380
3574
raise errors.LocalRequiresBoundBranch()
3381
master_branch = None
3382
if not local and bound_location and self.source.user_url != bound_location:
3383
# not pulling from master, so we need to update master.
3384
master_branch = self.target.get_master_branch(possible_transports)
3385
master_branch.lock_write()
3575
result = PullResult()
3576
result.source_branch = self.source
3577
if _override_hook_target is None:
3578
result.target_branch = self.target
3580
result.target_branch = _override_hook_target
3581
self.source.lock_read()
3388
# pull from source into master.
3389
master_branch.pull(self.source, overwrite, stop_revision,
3391
return super(InterToBranch5, self).pull(overwrite,
3392
stop_revision, _hook_master=master_branch,
3393
run_hooks=run_hooks,
3394
_override_hook_target=_override_hook_target)
3583
# We assume that during 'pull' the target repository is closer than
3585
self.source.update_references(self.target)
3586
graph = self.target.repository.get_graph(self.source.repository)
3587
# TODO: Branch formats should have a flag that indicates
3588
# that revno's are expensive, and pull() should honor that flag.
3590
result.old_revno, result.old_revid = \
3591
self.target.last_revision_info()
3592
self.target.update_revisions(self.source, stop_revision,
3593
overwrite=overwrite, graph=graph)
3594
# TODO: The old revid should be specified when merging tags,
3595
# so a tags implementation that versions tags can only
3596
# pull in the most recent changes. -- JRV20090506
3597
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3598
overwrite, ignore_master=not merge_tags_to_master)
3599
result.new_revno, result.new_revid = self.target.last_revision_info()
3601
result.master_branch = _hook_master
3602
result.local_branch = result.target_branch
3604
result.master_branch = result.target_branch
3605
result.local_branch = None
3607
for hook in Branch.hooks['post_pull']:
3397
master_branch.unlock()
3610
self.source.unlock()
3400
3614
InterBranch.register_optimiser(GenericInterBranch)
3401
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
