526
561
raise ValueError('invalid stop_rule %r' % stop_rule)
563
def _filter_start_non_ancestors(self, rev_iter):
564
# If we started from a dotted revno, we want to consider it as a tip
565
# and don't want to yield revisions that are not part of its
566
# ancestry. Given the order guaranteed by the merge sort, we will see
567
# uninteresting descendants of the first parent of our tip before the
569
first = rev_iter.next()
570
(rev_id, merge_depth, revno, end_of_merge) = first
573
# We start at a mainline revision so by definition, all others
574
# revisions in rev_iter are ancestors
575
for node in rev_iter:
580
pmap = self.repository.get_parent_map([rev_id])
581
parents = pmap.get(rev_id, [])
583
whitelist.update(parents)
585
# If there is no parents, there is nothing of interest left
587
# FIXME: It's hard to test this scenario here as this code is never
588
# called in that case. -- vila 20100322
591
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
593
if rev_id in whitelist:
594
pmap = self.repository.get_parent_map([rev_id])
595
parents = pmap.get(rev_id, [])
596
whitelist.remove(rev_id)
597
whitelist.update(parents)
599
# We've reached the mainline, there is nothing left to
603
# A revision that is not part of the ancestry of our
606
yield (rev_id, merge_depth, revno, end_of_merge)
528
608
def leave_lock_in_place(self):
529
609
"""Tell this branch object not to release the physical lock when this
530
610
object is unlocked.
725
805
if len(old_repository._fallback_repositories) != 1:
726
806
raise AssertionError("can't cope with fallback repositories "
727
807
"of %r" % (self.repository,))
728
# unlock it, including unlocking the fallback
808
# Open the new repository object.
809
# Repositories don't offer an interface to remove fallback
810
# repositories today; take the conceptually simpler option and just
811
# reopen it. We reopen it starting from the URL so that we
812
# get a separate connection for RemoteRepositories and can
813
# stream from one of them to the other. This does mean doing
814
# separate SSH connection setup, but unstacking is not a
815
# common operation so it's tolerable.
816
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
817
new_repository = new_bzrdir.find_repository()
818
if new_repository._fallback_repositories:
819
raise AssertionError("didn't expect %r to have "
820
"fallback_repositories"
821
% (self.repository,))
822
# Replace self.repository with the new repository.
823
# Do our best to transfer the lock state (i.e. lock-tokens and
824
# lock count) of self.repository to the new repository.
825
lock_token = old_repository.lock_write().repository_token
826
self.repository = new_repository
827
if isinstance(self, remote.RemoteBranch):
828
# Remote branches can have a second reference to the old
829
# repository that need to be replaced.
830
if self._real_branch is not None:
831
self._real_branch.repository = new_repository
832
self.repository.lock_write(token=lock_token)
833
if lock_token is not None:
834
old_repository.leave_lock_in_place()
729
835
old_repository.unlock()
836
if lock_token is not None:
837
# XXX: self.repository.leave_lock_in_place() before this
838
# function will not be preserved. Fortunately that doesn't
839
# affect the current default format (2a), and would be a
840
# corner-case anyway.
841
# - Andrew Bennetts, 2010/06/30
842
self.repository.dont_leave_lock_in_place()
846
old_repository.unlock()
847
except errors.LockNotHeld:
850
if old_lock_count == 0:
851
raise AssertionError(
852
'old_repository should have been locked at least once.')
853
for i in range(old_lock_count-1):
854
self.repository.lock_write()
855
# Fetch from the old repository into the new.
730
856
old_repository.lock_read()
732
# Repositories don't offer an interface to remove fallback
733
# repositories today; take the conceptually simpler option and just
734
# reopen it. We reopen it starting from the URL so that we
735
# get a separate connection for RemoteRepositories and can
736
# stream from one of them to the other. This does mean doing
737
# separate SSH connection setup, but unstacking is not a
738
# common operation so it's tolerable.
739
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
740
new_repository = new_bzrdir.find_repository()
741
self.repository = new_repository
742
if self.repository._fallback_repositories:
743
raise AssertionError("didn't expect %r to have "
744
"fallback_repositories"
745
% (self.repository,))
746
# this is not paired with an unlock because it's just restoring
747
# the previous state; the lock's released when set_stacked_on_url
749
self.repository.lock_write()
750
858
# XXX: If you unstack a branch while it has a working tree
751
859
# with a pending merge, the pending-merged revisions will no
752
860
# longer be present. You can (probably) revert and remerge.
1483
1613
"""Return the short format description for this format."""
1484
1614
raise NotImplementedError(self.get_format_description)
1486
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1616
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1617
hooks = Branch.hooks['post_branch_init']
1620
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1624
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1625
lock_type='metadir', set_format=True):
1488
1626
"""Initialize a branch in a bzrdir, with specified files
1490
1628
:param a_bzrdir: The bzrdir to initialize the branch in
1491
1629
:param utf8_files: The files to create as a list of
1492
1630
(filename, content) tuples
1631
:param name: Name of colocated branch to create, if any
1493
1632
:param set_format: If True, set the format with
1494
1633
self.get_format_string. (BzrBranch4 has its format set
1496
1635
:return: a branch in this format
1498
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1499
branch_transport = a_bzrdir.get_branch_transport(self)
1637
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1638
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1501
1640
'metadir': ('lock', lockdir.LockDir),
1502
1641
'branch4': ('branch-lock', lockable_files.TransportLock),
1723
1921
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1924
class BranchInitHookParams(object):
1925
"""Object holding parameters passed to *_branch_init hooks.
1927
There are 4 fields that hooks may wish to access:
1929
:ivar format: the branch format
1930
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1931
:ivar name: name of colocated branch, if any (or None)
1932
:ivar branch: the branch created
1934
Note that for lightweight checkouts, the bzrdir and format fields refer to
1935
the checkout, hence they are different from the corresponding fields in
1936
branch, which refer to the original branch.
1939
def __init__(self, format, a_bzrdir, name, branch):
1940
"""Create a group of BranchInitHook parameters.
1942
:param format: the branch format
1943
:param a_bzrdir: the BzrDir where the branch will be/has been
1945
:param name: name of colocated branch, if any (or None)
1946
:param branch: the branch created
1948
Note that for lightweight checkouts, the bzrdir and format fields refer
1949
to the checkout, hence they are different from the corresponding fields
1950
in branch, which refer to the original branch.
1952
self.format = format
1953
self.bzrdir = a_bzrdir
1955
self.branch = branch
1957
def __eq__(self, other):
1958
return self.__dict__ == other.__dict__
1961
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1964
class SwitchHookParams(object):
1965
"""Object holding parameters passed to *_switch hooks.
1967
There are 4 fields that hooks may wish to access:
1969
:ivar control_dir: BzrDir of the checkout to change
1970
:ivar to_branch: branch that the checkout is to reference
1971
:ivar force: skip the check for local commits in a heavy checkout
1972
:ivar revision_id: revision ID to switch to (or None)
1975
def __init__(self, control_dir, to_branch, force, revision_id):
1976
"""Create a group of SwitchHook parameters.
1978
:param control_dir: BzrDir of the checkout to change
1979
:param to_branch: branch that the checkout is to reference
1980
:param force: skip the check for local commits in a heavy checkout
1981
:param revision_id: revision ID to switch to (or None)
1983
self.control_dir = control_dir
1984
self.to_branch = to_branch
1986
self.revision_id = revision_id
1988
def __eq__(self, other):
1989
return self.__dict__ == other.__dict__
1992
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1993
self.control_dir, self.to_branch,
1726
1997
class BzrBranchFormat4(BranchFormat):
1727
1998
"""Bzr branch format 4.
1974
2247
"""See BranchFormat.get_format_description()."""
1975
2248
return "Checkout reference format 1"
1977
def get_reference(self, a_bzrdir):
2250
def get_reference(self, a_bzrdir, name=None):
1978
2251
"""See BranchFormat.get_reference()."""
1979
transport = a_bzrdir.get_branch_transport(None)
2252
transport = a_bzrdir.get_branch_transport(None, name=name)
1980
2253
return transport.get_bytes('location')
1982
def set_reference(self, a_bzrdir, to_branch):
2255
def set_reference(self, a_bzrdir, name, to_branch):
1983
2256
"""See BranchFormat.set_reference()."""
1984
transport = a_bzrdir.get_branch_transport(None)
2257
transport = a_bzrdir.get_branch_transport(None, name=name)
1985
2258
location = transport.put_bytes('location', to_branch.base)
1987
def initialize(self, a_bzrdir, target_branch=None):
2260
def initialize(self, a_bzrdir, name=None, target_branch=None):
1988
2261
"""Create a branch of this format in a_bzrdir."""
1989
2262
if target_branch is None:
1990
2263
# this format does not implement branch itself, thus the implicit
1991
2264
# creation contract must see it as uninitializable
1992
2265
raise errors.UninitializableFormat(self)
1993
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1994
branch_transport = a_bzrdir.get_branch_transport(self)
2266
mutter('creating branch reference in %s', a_bzrdir.user_url)
2267
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1995
2268
branch_transport.put_bytes('location',
1996
target_branch.bzrdir.root_transport.base)
2269
target_branch.bzrdir.user_url)
1997
2270
branch_transport.put_bytes('format', self.get_format_string())
1999
a_bzrdir, _found=True,
2272
a_bzrdir, name, _found=True,
2000
2273
possible_transports=[target_branch.bzrdir.root_transport])
2274
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2002
2277
def __init__(self):
2003
2278
super(BranchReferenceFormat, self).__init__()
2988
3309
raise NotImplementedError(self.push)
3312
def copy_content_into(self, revision_id=None):
3313
"""Copy the content of source into target
3315
revision_id: if not None, the revision history in the new branch will
3316
be truncated to end with revision_id.
3318
raise NotImplementedError(self.copy_content_into)
2991
3321
class GenericInterBranch(InterBranch):
2992
"""InterBranch implementation that uses public Branch functions.
2996
def _get_branch_formats_to_test():
2997
return BranchFormat._default_format, BranchFormat._default_format
3322
"""InterBranch implementation that uses public Branch functions."""
3325
def is_compatible(klass, source, target):
3326
# GenericBranch uses the public API, so always compatible
3330
def _get_branch_formats_to_test(klass):
3331
return [(BranchFormat._default_format, BranchFormat._default_format)]
3334
def unwrap_format(klass, format):
3335
if isinstance(format, remote.RemoteBranchFormat):
3336
format._ensure_real()
3337
return format._custom_format
3341
def copy_content_into(self, revision_id=None):
3342
"""Copy the content of source into target
3344
revision_id: if not None, the revision history in the new branch will
3345
be truncated to end with revision_id.
3347
self.source.update_references(self.target)
3348
self.source._synchronize_history(self.target, revision_id)
3350
parent = self.source.get_parent()
3351
except errors.InaccessibleParent, e:
3352
mutter('parent was not accessible to copy: %s', e)
3355
self.target.set_parent(parent)
3356
if self.source._push_should_merge_tags():
3357
self.source.tags.merge_to(self.target.tags)
2999
3360
def update_revisions(self, stop_revision=None, overwrite=False,
3001
3362
"""See InterBranch.update_revisions()."""
3002
self.source.lock_read()
3004
other_revno, other_last_revision = self.source.last_revision_info()
3005
stop_revno = None # unknown
3006
if stop_revision is None:
3007
stop_revision = other_last_revision
3008
if _mod_revision.is_null(stop_revision):
3009
# if there are no commits, we're done.
3011
stop_revno = other_revno
3013
# what's the current last revision, before we fetch [and change it
3015
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3016
# we fetch here so that we don't process data twice in the common
3017
# case of having something to pull, and so that the check for
3018
# already merged can operate on the just fetched graph, which will
3019
# be cached in memory.
3020
self.target.fetch(self.source, stop_revision)
3021
# Check to see if one is an ancestor of the other
3024
graph = self.target.repository.get_graph()
3025
if self.target._check_if_descendant_or_diverged(
3026
stop_revision, last_rev, graph, self.source):
3027
# stop_revision is a descendant of last_rev, but we aren't
3028
# overwriting, so we're done.
3030
if stop_revno is None:
3032
graph = self.target.repository.get_graph()
3033
this_revno, this_last_revision = \
3034
self.target.last_revision_info()
3035
stop_revno = graph.find_distance_to_null(stop_revision,
3036
[(other_last_revision, other_revno),
3037
(this_last_revision, this_revno)])
3038
self.target.set_last_revision_info(stop_revno, stop_revision)
3040
self.source.unlock()
3363
other_revno, other_last_revision = self.source.last_revision_info()
3364
stop_revno = None # unknown
3365
if stop_revision is None:
3366
stop_revision = other_last_revision
3367
if _mod_revision.is_null(stop_revision):
3368
# if there are no commits, we're done.
3370
stop_revno = other_revno
3372
# what's the current last revision, before we fetch [and change it
3374
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3375
# we fetch here so that we don't process data twice in the common
3376
# case of having something to pull, and so that the check for
3377
# already merged can operate on the just fetched graph, which will
3378
# be cached in memory.
3379
self.target.fetch(self.source, stop_revision)
3380
# Check to see if one is an ancestor of the other
3383
graph = self.target.repository.get_graph()
3384
if self.target._check_if_descendant_or_diverged(
3385
stop_revision, last_rev, graph, self.source):
3386
# stop_revision is a descendant of last_rev, but we aren't
3387
# overwriting, so we're done.
3389
if stop_revno is None:
3391
graph = self.target.repository.get_graph()
3392
this_revno, this_last_revision = \
3393
self.target.last_revision_info()
3394
stop_revno = graph.find_distance_to_null(stop_revision,
3395
[(other_last_revision, other_revno),
3396
(this_last_revision, this_revno)])
3397
self.target.set_last_revision_info(stop_revno, stop_revision)
3042
3400
def pull(self, overwrite=False, stop_revision=None,
3043
possible_transports=None, _hook_master=None, run_hooks=True,
3401
possible_transports=None, run_hooks=True,
3044
3402
_override_hook_target=None, local=False):
3403
"""Pull from source into self, updating my master if any.
3047
:param _hook_master: Private parameter - set the branch to
3048
be supplied as the master to pull hooks.
3049
3405
:param run_hooks: Private parameter - if false, this branch
3050
3406
is being called because it's the master of the primary branch,
3051
3407
so it should not run its hooks.
3052
:param _override_hook_target: Private parameter - set the branch to be
3053
supplied as the target_branch to pull hooks.
3054
:param local: Only update the local branch, and not the bound branch.
3056
# This type of branch can't be bound.
3409
bound_location = self.target.get_bound_location()
3410
if local and not bound_location:
3058
3411
raise errors.LocalRequiresBoundBranch()
3059
result = PullResult()
3060
result.source_branch = self.source
3061
if _override_hook_target is None:
3062
result.target_branch = self.target
3064
result.target_branch = _override_hook_target
3065
self.source.lock_read()
3412
master_branch = None
3413
if not local and bound_location and self.source.user_url != bound_location:
3414
# not pulling from master, so we need to update master.
3415
master_branch = self.target.get_master_branch(possible_transports)
3416
master_branch.lock_write()
3067
# We assume that during 'pull' the target repository is closer than
3069
self.source.update_references(self.target)
3070
graph = self.target.repository.get_graph(self.source.repository)
3071
# TODO: Branch formats should have a flag that indicates
3072
# that revno's are expensive, and pull() should honor that flag.
3074
result.old_revno, result.old_revid = \
3075
self.target.last_revision_info()
3076
self.target.update_revisions(self.source, stop_revision,
3077
overwrite=overwrite, graph=graph)
3078
# TODO: The old revid should be specified when merging tags,
3079
# so a tags implementation that versions tags can only
3080
# pull in the most recent changes. -- JRV20090506
3081
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3083
result.new_revno, result.new_revid = self.target.last_revision_info()
3085
result.master_branch = _hook_master
3086
result.local_branch = result.target_branch
3088
result.master_branch = result.target_branch
3089
result.local_branch = None
3091
for hook in Branch.hooks['post_pull']:
3419
# pull from source into master.
3420
master_branch.pull(self.source, overwrite, stop_revision,
3422
return self._pull(overwrite,
3423
stop_revision, _hook_master=master_branch,
3424
run_hooks=run_hooks,
3425
_override_hook_target=_override_hook_target)
3094
self.source.unlock()
3428
master_branch.unlock()
3097
3430
def push(self, overwrite=False, stop_revision=None,
3098
3431
_override_hook_source_branch=None):
3164
def is_compatible(self, source, target):
3165
# GenericBranch uses the public API, so always compatible
3169
class InterToBranch5(GenericInterBranch):
3172
def _get_branch_formats_to_test():
3173
return BranchFormat._default_format, BzrBranchFormat5()
3175
def pull(self, overwrite=False, stop_revision=None,
3176
possible_transports=None, run_hooks=True,
3496
def _pull(self, overwrite=False, stop_revision=None,
3497
possible_transports=None, _hook_master=None, run_hooks=True,
3177
3498
_override_hook_target=None, local=False):
3178
"""Pull from source into self, updating my master if any.
3501
This function is the core worker, used by GenericInterBranch.pull to
3502
avoid duplication when pulling source->master and source->local.
3504
:param _hook_master: Private parameter - set the branch to
3505
be supplied as the master to pull hooks.
3180
3506
:param run_hooks: Private parameter - if false, this branch
3181
3507
is being called because it's the master of the primary branch,
3182
3508
so it should not run its hooks.
3509
:param _override_hook_target: Private parameter - set the branch to be
3510
supplied as the target_branch to pull hooks.
3511
:param local: Only update the local branch, and not the bound branch.
3184
bound_location = self.target.get_bound_location()
3185
if local and not bound_location:
3513
# This type of branch can't be bound.
3186
3515
raise errors.LocalRequiresBoundBranch()
3187
master_branch = None
3188
if not local and bound_location and self.source.base != bound_location:
3189
# not pulling from master, so we need to update master.
3190
master_branch = self.target.get_master_branch(possible_transports)
3191
master_branch.lock_write()
3516
result = PullResult()
3517
result.source_branch = self.source
3518
if _override_hook_target is None:
3519
result.target_branch = self.target
3521
result.target_branch = _override_hook_target
3522
self.source.lock_read()
3194
# pull from source into master.
3195
master_branch.pull(self.source, overwrite, stop_revision,
3197
return super(InterToBranch5, self).pull(overwrite,
3198
stop_revision, _hook_master=master_branch,
3199
run_hooks=run_hooks,
3200
_override_hook_target=_override_hook_target)
3524
# We assume that during 'pull' the target repository is closer than
3526
self.source.update_references(self.target)
3527
graph = self.target.repository.get_graph(self.source.repository)
3528
# TODO: Branch formats should have a flag that indicates
3529
# that revno's are expensive, and pull() should honor that flag.
3531
result.old_revno, result.old_revid = \
3532
self.target.last_revision_info()
3533
self.target.update_revisions(self.source, stop_revision,
3534
overwrite=overwrite, graph=graph)
3535
# TODO: The old revid should be specified when merging tags,
3536
# so a tags implementation that versions tags can only
3537
# pull in the most recent changes. -- JRV20090506
3538
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3540
result.new_revno, result.new_revid = self.target.last_revision_info()
3542
result.master_branch = _hook_master
3543
result.local_branch = result.target_branch
3545
result.master_branch = result.target_branch
3546
result.local_branch = None
3548
for hook in Branch.hooks['post_pull']:
3203
master_branch.unlock()
3551
self.source.unlock()
3206
3555
InterBranch.register_optimiser(GenericInterBranch)
3207
InterBranch.register_optimiser(InterToBranch5)