772
801
if len(old_repository._fallback_repositories) != 1:
773
802
raise AssertionError("can't cope with fallback repositories "
774
803
"of %r" % (self.repository,))
775
# unlock it, including unlocking the fallback
804
# Open the new repository object.
805
# Repositories don't offer an interface to remove fallback
806
# repositories today; take the conceptually simpler option and just
807
# reopen it. We reopen it starting from the URL so that we
808
# get a separate connection for RemoteRepositories and can
809
# stream from one of them to the other. This does mean doing
810
# separate SSH connection setup, but unstacking is not a
811
# common operation so it's tolerable.
812
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
813
new_repository = new_bzrdir.find_repository()
814
if new_repository._fallback_repositories:
815
raise AssertionError("didn't expect %r to have "
816
"fallback_repositories"
817
% (self.repository,))
818
# Replace self.repository with the new repository.
819
# Do our best to transfer the lock state (i.e. lock-tokens and
820
# lock count) of self.repository to the new repository.
821
lock_token = old_repository.lock_write().repository_token
822
self.repository = new_repository
823
if isinstance(self, remote.RemoteBranch):
824
# Remote branches can have a second reference to the old
825
# repository that need to be replaced.
826
if self._real_branch is not None:
827
self._real_branch.repository = new_repository
828
self.repository.lock_write(token=lock_token)
829
if lock_token is not None:
830
old_repository.leave_lock_in_place()
776
831
old_repository.unlock()
832
if lock_token is not None:
833
# XXX: self.repository.leave_lock_in_place() before this
834
# function will not be preserved. Fortunately that doesn't
835
# affect the current default format (2a), and would be a
836
# corner-case anyway.
837
# - Andrew Bennetts, 2010/06/30
838
self.repository.dont_leave_lock_in_place()
842
old_repository.unlock()
843
except errors.LockNotHeld:
846
if old_lock_count == 0:
847
raise AssertionError(
848
'old_repository should have been locked at least once.')
849
for i in range(old_lock_count-1):
850
self.repository.lock_write()
851
# Fetch from the old repository into the new.
777
852
old_repository.lock_read()
779
# Repositories don't offer an interface to remove fallback
780
# repositories today; take the conceptually simpler option and just
781
# reopen it. We reopen it starting from the URL so that we
782
# get a separate connection for RemoteRepositories and can
783
# stream from one of them to the other. This does mean doing
784
# separate SSH connection setup, but unstacking is not a
785
# common operation so it's tolerable.
786
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
787
new_repository = new_bzrdir.find_repository()
788
self.repository = new_repository
789
if self.repository._fallback_repositories:
790
raise AssertionError("didn't expect %r to have "
791
"fallback_repositories"
792
% (self.repository,))
793
# this is not paired with an unlock because it's just restoring
794
# the previous state; the lock's released when set_stacked_on_url
796
self.repository.lock_write()
797
854
# XXX: If you unstack a branch while it has a working tree
798
855
# with a pending merge, the pending-merged revisions will no
799
856
# longer be present. You can (probably) revert and remerge.
1795
1917
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1920
class BranchInitHookParams(object):
1921
"""Object holding parameters passed to *_branch_init hooks.
1923
There are 4 fields that hooks may wish to access:
1925
:ivar format: the branch format
1926
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1927
:ivar name: name of colocated branch, if any (or None)
1928
:ivar branch: the branch created
1930
Note that for lightweight checkouts, the bzrdir and format fields refer to
1931
the checkout, hence they are different from the corresponding fields in
1932
branch, which refer to the original branch.
1935
def __init__(self, format, a_bzrdir, name, branch):
1936
"""Create a group of BranchInitHook parameters.
1938
:param format: the branch format
1939
:param a_bzrdir: the BzrDir where the branch will be/has been
1941
:param name: name of colocated branch, if any (or None)
1942
:param branch: the branch created
1944
Note that for lightweight checkouts, the bzrdir and format fields refer
1945
to the checkout, hence they are different from the corresponding fields
1946
in branch, which refer to the original branch.
1948
self.format = format
1949
self.bzrdir = a_bzrdir
1951
self.branch = branch
1953
def __eq__(self, other):
1954
return self.__dict__ == other.__dict__
1958
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1960
return "<%s of format:%s bzrdir:%s>" % (
1961
self.__class__.__name__, self.branch,
1962
self.format, self.bzrdir)
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,
1798
1998
class BzrBranchFormat4(BranchFormat):
1799
1999
"""Bzr branch format 4.
3073
3313
class GenericInterBranch(InterBranch):
3074
"""InterBranch implementation that uses public Branch functions.
3078
def _get_branch_formats_to_test():
3079
return BranchFormat._default_format, BranchFormat._default_format
3314
"""InterBranch implementation that uses public Branch functions."""
3317
def is_compatible(klass, source, target):
3318
# GenericBranch uses the public API, so always compatible
3322
def _get_branch_formats_to_test(klass):
3323
return [(BranchFormat._default_format, BranchFormat._default_format)]
3326
def unwrap_format(klass, format):
3327
if isinstance(format, remote.RemoteBranchFormat):
3328
format._ensure_real()
3329
return format._custom_format
3333
def copy_content_into(self, revision_id=None):
3334
"""Copy the content of source into target
3336
revision_id: if not None, the revision history in the new branch will
3337
be truncated to end with revision_id.
3339
self.source.update_references(self.target)
3340
self.source._synchronize_history(self.target, revision_id)
3342
parent = self.source.get_parent()
3343
except errors.InaccessibleParent, e:
3344
mutter('parent was not accessible to copy: %s', e)
3347
self.target.set_parent(parent)
3348
if self.source._push_should_merge_tags():
3349
self.source.tags.merge_to(self.target.tags)
3081
3352
def update_revisions(self, stop_revision=None, overwrite=False,
3083
3354
"""See InterBranch.update_revisions()."""
3084
self.source.lock_read()
3086
other_revno, other_last_revision = self.source.last_revision_info()
3087
stop_revno = None # unknown
3088
if stop_revision is None:
3089
stop_revision = other_last_revision
3090
if _mod_revision.is_null(stop_revision):
3091
# if there are no commits, we're done.
3093
stop_revno = other_revno
3095
# what's the current last revision, before we fetch [and change it
3097
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3098
# we fetch here so that we don't process data twice in the common
3099
# case of having something to pull, and so that the check for
3100
# already merged can operate on the just fetched graph, which will
3101
# be cached in memory.
3102
self.target.fetch(self.source, stop_revision)
3103
# Check to see if one is an ancestor of the other
3106
graph = self.target.repository.get_graph()
3107
if self.target._check_if_descendant_or_diverged(
3108
stop_revision, last_rev, graph, self.source):
3109
# stop_revision is a descendant of last_rev, but we aren't
3110
# overwriting, so we're done.
3112
if stop_revno is None:
3114
graph = self.target.repository.get_graph()
3115
this_revno, this_last_revision = \
3116
self.target.last_revision_info()
3117
stop_revno = graph.find_distance_to_null(stop_revision,
3118
[(other_last_revision, other_revno),
3119
(this_last_revision, this_revno)])
3120
self.target.set_last_revision_info(stop_revno, stop_revision)
3122
self.source.unlock()
3355
other_revno, other_last_revision = self.source.last_revision_info()
3356
stop_revno = None # unknown
3357
if stop_revision is None:
3358
stop_revision = other_last_revision
3359
if _mod_revision.is_null(stop_revision):
3360
# if there are no commits, we're done.
3362
stop_revno = other_revno
3364
# what's the current last revision, before we fetch [and change it
3366
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3367
# we fetch here so that we don't process data twice in the common
3368
# case of having something to pull, and so that the check for
3369
# already merged can operate on the just fetched graph, which will
3370
# be cached in memory.
3371
self.target.fetch(self.source, stop_revision)
3372
# Check to see if one is an ancestor of the other
3375
graph = self.target.repository.get_graph()
3376
if self.target._check_if_descendant_or_diverged(
3377
stop_revision, last_rev, graph, self.source):
3378
# stop_revision is a descendant of last_rev, but we aren't
3379
# overwriting, so we're done.
3381
if stop_revno is None:
3383
graph = self.target.repository.get_graph()
3384
this_revno, this_last_revision = \
3385
self.target.last_revision_info()
3386
stop_revno = graph.find_distance_to_null(stop_revision,
3387
[(other_last_revision, other_revno),
3388
(this_last_revision, this_revno)])
3389
self.target.set_last_revision_info(stop_revno, stop_revision)
3124
3392
def pull(self, overwrite=False, stop_revision=None,
3125
possible_transports=None, _hook_master=None, run_hooks=True,
3393
possible_transports=None, run_hooks=True,
3126
3394
_override_hook_target=None, local=False):
3395
"""Pull from source into self, updating my master if any.
3129
:param _hook_master: Private parameter - set the branch to
3130
be supplied as the master to pull hooks.
3131
3397
:param run_hooks: Private parameter - if false, this branch
3132
3398
is being called because it's the master of the primary branch,
3133
3399
so it should not run its hooks.
3134
:param _override_hook_target: Private parameter - set the branch to be
3135
supplied as the target_branch to pull hooks.
3136
:param local: Only update the local branch, and not the bound branch.
3138
# This type of branch can't be bound.
3401
bound_location = self.target.get_bound_location()
3402
if local and not bound_location:
3140
3403
raise errors.LocalRequiresBoundBranch()
3141
result = PullResult()
3142
result.source_branch = self.source
3143
if _override_hook_target is None:
3144
result.target_branch = self.target
3146
result.target_branch = _override_hook_target
3147
self.source.lock_read()
3404
master_branch = None
3405
if not local and bound_location and self.source.user_url != bound_location:
3406
# not pulling from master, so we need to update master.
3407
master_branch = self.target.get_master_branch(possible_transports)
3408
master_branch.lock_write()
3149
# We assume that during 'pull' the target repository is closer than
3151
self.source.update_references(self.target)
3152
graph = self.target.repository.get_graph(self.source.repository)
3153
# TODO: Branch formats should have a flag that indicates
3154
# that revno's are expensive, and pull() should honor that flag.
3156
result.old_revno, result.old_revid = \
3157
self.target.last_revision_info()
3158
self.target.update_revisions(self.source, stop_revision,
3159
overwrite=overwrite, graph=graph)
3160
# TODO: The old revid should be specified when merging tags,
3161
# so a tags implementation that versions tags can only
3162
# pull in the most recent changes. -- JRV20090506
3163
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3165
result.new_revno, result.new_revid = self.target.last_revision_info()
3167
result.master_branch = _hook_master
3168
result.local_branch = result.target_branch
3170
result.master_branch = result.target_branch
3171
result.local_branch = None
3173
for hook in Branch.hooks['post_pull']:
3411
# pull from source into master.
3412
master_branch.pull(self.source, overwrite, stop_revision,
3414
return self._pull(overwrite,
3415
stop_revision, _hook_master=master_branch,
3416
run_hooks=run_hooks,
3417
_override_hook_target=_override_hook_target)
3176
self.source.unlock()
3420
master_branch.unlock()
3179
3422
def push(self, overwrite=False, stop_revision=None,
3180
3423
_override_hook_source_branch=None):
3246
def is_compatible(self, source, target):
3247
# GenericBranch uses the public API, so always compatible
3251
class InterToBranch5(GenericInterBranch):
3254
def _get_branch_formats_to_test():
3255
return BranchFormat._default_format, BzrBranchFormat5()
3257
def pull(self, overwrite=False, stop_revision=None,
3258
possible_transports=None, run_hooks=True,
3488
def _pull(self, overwrite=False, stop_revision=None,
3489
possible_transports=None, _hook_master=None, run_hooks=True,
3259
3490
_override_hook_target=None, local=False):
3260
"""Pull from source into self, updating my master if any.
3493
This function is the core worker, used by GenericInterBranch.pull to
3494
avoid duplication when pulling source->master and source->local.
3496
:param _hook_master: Private parameter - set the branch to
3497
be supplied as the master to pull hooks.
3262
3498
:param run_hooks: Private parameter - if false, this branch
3263
3499
is being called because it's the master of the primary branch,
3264
3500
so it should not run its hooks.
3501
:param _override_hook_target: Private parameter - set the branch to be
3502
supplied as the target_branch to pull hooks.
3503
:param local: Only update the local branch, and not the bound branch.
3266
bound_location = self.target.get_bound_location()
3267
if local and not bound_location:
3505
# This type of branch can't be bound.
3268
3507
raise errors.LocalRequiresBoundBranch()
3269
master_branch = None
3270
if not local and bound_location and self.source.base != bound_location:
3271
# not pulling from master, so we need to update master.
3272
master_branch = self.target.get_master_branch(possible_transports)
3273
master_branch.lock_write()
3508
result = PullResult()
3509
result.source_branch = self.source
3510
if _override_hook_target is None:
3511
result.target_branch = self.target
3513
result.target_branch = _override_hook_target
3514
self.source.lock_read()
3276
# pull from source into master.
3277
master_branch.pull(self.source, overwrite, stop_revision,
3279
return super(InterToBranch5, self).pull(overwrite,
3280
stop_revision, _hook_master=master_branch,
3281
run_hooks=run_hooks,
3282
_override_hook_target=_override_hook_target)
3516
# We assume that during 'pull' the target repository is closer than
3518
self.source.update_references(self.target)
3519
graph = self.target.repository.get_graph(self.source.repository)
3520
# TODO: Branch formats should have a flag that indicates
3521
# that revno's are expensive, and pull() should honor that flag.
3523
result.old_revno, result.old_revid = \
3524
self.target.last_revision_info()
3525
self.target.update_revisions(self.source, stop_revision,
3526
overwrite=overwrite, graph=graph)
3527
# TODO: The old revid should be specified when merging tags,
3528
# so a tags implementation that versions tags can only
3529
# pull in the most recent changes. -- JRV20090506
3530
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3532
result.new_revno, result.new_revid = self.target.last_revision_info()
3534
result.master_branch = _hook_master
3535
result.local_branch = result.target_branch
3537
result.master_branch = result.target_branch
3538
result.local_branch = None
3540
for hook in Branch.hooks['post_pull']:
3285
master_branch.unlock()
3543
self.source.unlock()
3288
3547
InterBranch.register_optimiser(GenericInterBranch)
3289
InterBranch.register_optimiser(InterToBranch5)