792
869
old_repository = self.repository
793
870
if len(old_repository._fallback_repositories) != 1:
794
871
raise AssertionError("can't cope with fallback repositories "
795
"of %r" % (self.repository,))
796
# unlock it, including unlocking the fallback
872
"of %r (fallbacks: %r)" % (old_repository,
873
old_repository._fallback_repositories))
874
# Open the new repository object.
875
# Repositories don't offer an interface to remove fallback
876
# repositories today; take the conceptually simpler option and just
877
# reopen it. We reopen it starting from the URL so that we
878
# get a separate connection for RemoteRepositories and can
879
# stream from one of them to the other. This does mean doing
880
# separate SSH connection setup, but unstacking is not a
881
# common operation so it's tolerable.
882
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
883
new_repository = new_bzrdir.find_repository()
884
if new_repository._fallback_repositories:
885
raise AssertionError("didn't expect %r to have "
886
"fallback_repositories"
887
% (self.repository,))
888
# Replace self.repository with the new repository.
889
# Do our best to transfer the lock state (i.e. lock-tokens and
890
# lock count) of self.repository to the new repository.
891
lock_token = old_repository.lock_write().repository_token
892
self.repository = new_repository
893
if isinstance(self, remote.RemoteBranch):
894
# Remote branches can have a second reference to the old
895
# repository that need to be replaced.
896
if self._real_branch is not None:
897
self._real_branch.repository = new_repository
898
self.repository.lock_write(token=lock_token)
899
if lock_token is not None:
900
old_repository.leave_lock_in_place()
797
901
old_repository.unlock()
902
if lock_token is not None:
903
# XXX: self.repository.leave_lock_in_place() before this
904
# function will not be preserved. Fortunately that doesn't
905
# affect the current default format (2a), and would be a
906
# corner-case anyway.
907
# - Andrew Bennetts, 2010/06/30
908
self.repository.dont_leave_lock_in_place()
912
old_repository.unlock()
913
except errors.LockNotHeld:
916
if old_lock_count == 0:
917
raise AssertionError(
918
'old_repository should have been locked at least once.')
919
for i in range(old_lock_count-1):
920
self.repository.lock_write()
921
# Fetch from the old repository into the new.
798
922
old_repository.lock_read()
800
# Repositories don't offer an interface to remove fallback
801
# repositories today; take the conceptually simpler option and just
802
# reopen it. We reopen it starting from the URL so that we
803
# get a separate connection for RemoteRepositories and can
804
# stream from one of them to the other. This does mean doing
805
# separate SSH connection setup, but unstacking is not a
806
# common operation so it's tolerable.
807
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
808
new_repository = new_bzrdir.find_repository()
809
self.repository = new_repository
810
if self.repository._fallback_repositories:
811
raise AssertionError("didn't expect %r to have "
812
"fallback_repositories"
813
% (self.repository,))
814
# this is not paired with an unlock because it's just restoring
815
# the previous state; the lock's released when set_stacked_on_url
817
self.repository.lock_write()
818
924
# XXX: If you unstack a branch while it has a working tree
819
925
# with a pending merge, the pending-merged revisions will no
820
926
# longer be present. You can (probably) revert and remerge.
822
# XXX: This only fetches up to the tip of the repository; it
823
# doesn't bring across any tags. That's fairly consistent
824
# with how branch works, but perhaps not ideal.
825
self.repository.fetch(old_repository,
826
revision_id=self.last_revision(),
928
tags_to_fetch = set(self.tags.get_reverse_tag_dict())
929
except errors.TagsNotSupported:
930
tags_to_fetch = set()
931
fetch_spec = _mod_graph.NotInOtherForRevs(self.repository,
932
old_repository, required_ids=[self.last_revision()],
933
if_present_ids=tags_to_fetch, find_ghosts=True).execute()
934
self.repository.fetch(old_repository, fetch_spec=fetch_spec)
829
936
old_repository.unlock()
927
1041
:return: A tuple (revno, revision_id).
929
1043
if self._last_revision_info_cache is None:
930
self._last_revision_info_cache = self._last_revision_info()
1044
self._last_revision_info_cache = self._read_last_revision_info()
931
1045
return self._last_revision_info_cache
933
def _last_revision_info(self):
934
rh = self.revision_history()
937
return (revno, rh[-1])
939
return (0, _mod_revision.NULL_REVISION)
941
@deprecated_method(deprecated_in((1, 6, 0)))
942
def missing_revisions(self, other, stop_revision=None):
943
"""Return a list of new revisions that would perfectly fit.
945
If self and other have not diverged, return a list of the revisions
946
present in other, but missing from self.
948
self_history = self.revision_history()
949
self_len = len(self_history)
950
other_history = other.revision_history()
951
other_len = len(other_history)
952
common_index = min(self_len, other_len) -1
953
if common_index >= 0 and \
954
self_history[common_index] != other_history[common_index]:
955
raise errors.DivergedBranches(self, other)
957
if stop_revision is None:
958
stop_revision = other_len
960
if stop_revision > other_len:
961
raise errors.NoSuchRevision(self, stop_revision)
962
return other_history[self_len:stop_revision]
965
def update_revisions(self, other, stop_revision=None, overwrite=False,
967
"""Pull in new perfect-fit revisions.
969
:param other: Another Branch to pull from
970
:param stop_revision: Updated until the given revision
971
:param overwrite: Always set the branch pointer, rather than checking
972
to see if it is a proper descendant.
973
:param graph: A Graph object that can be used to query history
974
information. This can be None.
977
return InterBranch.get(other, self).update_revisions(stop_revision,
1047
def _read_last_revision_info(self):
1048
raise NotImplementedError(self._read_last_revision_info)
1050
@deprecated_method(deprecated_in((2, 4, 0)))
980
1051
def import_last_revision_info(self, source_repo, revno, revid):
981
1052
"""Set the last revision info, importing from another repo if necessary.
983
This is used by the bound branch code to upload a revision to
984
the master branch first before updating the tip of the local branch.
986
1054
:param source_repo: Source repository to optionally fetch from
987
1055
:param revno: Revision number of the new tip
988
1056
:param revid: Revision id of the new tip
1745
1833
"basis revision. hooks MUST NOT modify this delta. "
1746
1834
" future_tree is an in-memory tree obtained from "
1747
1835
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1748
"tree.", (0,91), None))
1749
self.create_hook(HookPoint('post_commit',
1837
self.add_hook('post_commit',
1750
1838
"Called in the bzr client after a commit has completed. "
1751
1839
"post_commit is called with (local, master, old_revno, old_revid, "
1752
1840
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1753
"commit to a branch.", (0, 15), None))
1754
self.create_hook(HookPoint('post_uncommit',
1841
"commit to a branch.", (0, 15))
1842
self.add_hook('post_uncommit',
1755
1843
"Called in the bzr client after an uncommit completes. "
1756
1844
"post_uncommit is called with (local, master, old_revno, "
1757
1845
"old_revid, new_revno, new_revid) where local is the local branch "
1758
1846
"or None, master is the target branch, and an empty branch "
1759
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1760
self.create_hook(HookPoint('pre_change_branch_tip',
1847
"receives new_revno of 0, new_revid of None.", (0, 15))
1848
self.add_hook('pre_change_branch_tip',
1761
1849
"Called in bzr client and server before a change to the tip of a "
1762
1850
"branch is made. pre_change_branch_tip is called with a "
1763
1851
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1764
"commit, uncommit will all trigger this hook.", (1, 6), None))
1765
self.create_hook(HookPoint('post_change_branch_tip',
1852
"commit, uncommit will all trigger this hook.", (1, 6))
1853
self.add_hook('post_change_branch_tip',
1766
1854
"Called in bzr client and server after a change to the tip of a "
1767
1855
"branch is made. post_change_branch_tip is called with a "
1768
1856
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1769
"commit, uncommit will all trigger this hook.", (1, 4), None))
1770
self.create_hook(HookPoint('transform_fallback_location',
1857
"commit, uncommit will all trigger this hook.", (1, 4))
1858
self.add_hook('transform_fallback_location',
1771
1859
"Called when a stacked branch is activating its fallback "
1772
1860
"locations. transform_fallback_location is called with (branch, "
1773
1861
"url), and should return a new url. Returning the same url "
2430
2540
"""See Branch.print_file."""
2431
2541
return self.repository.print_file(file, revision_id)
2433
def _write_revision_history(self, history):
2434
"""Factored out of set_revision_history.
2436
This performs the actual writing to disk.
2437
It is intended to be called by BzrBranch5.set_revision_history."""
2438
self._transport.put_bytes(
2439
'revision-history', '\n'.join(history),
2440
mode=self.bzrdir._get_file_mode())
2443
def set_revision_history(self, rev_history):
2444
"""See Branch.set_revision_history."""
2445
if 'evil' in debug.debug_flags:
2446
mutter_callsite(3, "set_revision_history scales with history.")
2447
check_not_reserved_id = _mod_revision.check_not_reserved_id
2448
for rev_id in rev_history:
2449
check_not_reserved_id(rev_id)
2450
if Branch.hooks['post_change_branch_tip']:
2451
# Don't calculate the last_revision_info() if there are no hooks
2453
old_revno, old_revid = self.last_revision_info()
2454
if len(rev_history) == 0:
2455
revid = _mod_revision.NULL_REVISION
2457
revid = rev_history[-1]
2458
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2459
self._write_revision_history(rev_history)
2460
self._clear_cached_state()
2461
self._cache_revision_history(rev_history)
2462
for hook in Branch.hooks['set_rh']:
2463
hook(self, rev_history)
2464
if Branch.hooks['post_change_branch_tip']:
2465
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2467
def _synchronize_history(self, destination, revision_id):
2468
"""Synchronize last revision and revision history between branches.
2470
This version is most efficient when the destination is also a
2471
BzrBranch5, but works for BzrBranch6 as long as the revision
2472
history is the true lefthand parent history, and all of the revisions
2473
are in the destination's repository. If not, set_revision_history
2476
:param destination: The branch to copy the history into
2477
:param revision_id: The revision-id to truncate history at. May
2478
be None to copy complete history.
2480
if not isinstance(destination._format, BzrBranchFormat5):
2481
super(BzrBranch, self)._synchronize_history(
2482
destination, revision_id)
2484
if revision_id == _mod_revision.NULL_REVISION:
2487
new_history = self.revision_history()
2488
if revision_id is not None and new_history != []:
2490
new_history = new_history[:new_history.index(revision_id) + 1]
2492
rev = self.repository.get_revision(revision_id)
2493
new_history = rev.get_history(self.repository)[1:]
2494
destination.set_revision_history(new_history)
2496
2543
@needs_write_lock
2497
2544
def set_last_revision_info(self, revno, revision_id):
2498
"""Set the last revision of this branch.
2500
The caller is responsible for checking that the revno is correct
2501
for this revision id.
2503
It may be possible to set the branch last revision to an id not
2504
present in the repository. However, branches can also be
2505
configured to check constraints on history, in which case this may not
2545
if not revision_id or not isinstance(revision_id, basestring):
2546
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2508
2547
revision_id = _mod_revision.ensure_null(revision_id)
2509
# this old format stores the full history, but this api doesn't
2510
# provide it, so we must generate, and might as well check it's
2512
history = self._lefthand_history(revision_id)
2513
if len(history) != revno:
2514
raise AssertionError('%d != %d' % (len(history), revno))
2515
self.set_revision_history(history)
2517
def _gen_revision_history(self):
2518
history = self._transport.get_bytes('revision-history').split('\n')
2519
if history[-1:] == ['']:
2520
# There shouldn't be a trailing newline, but just in case.
2525
def generate_revision_history(self, revision_id, last_rev=None,
2527
"""Create a new revision history that will finish with revision_id.
2529
:param revision_id: the new tip to use.
2530
:param last_rev: The previous last_revision. If not None, then this
2531
must be a ancestory of revision_id, or DivergedBranches is raised.
2532
:param other_branch: The other branch that DivergedBranches should
2533
raise with respect to.
2535
self.set_revision_history(self._lefthand_history(revision_id,
2536
last_rev, other_branch))
2548
old_revno, old_revid = self.last_revision_info()
2549
if self.get_append_revisions_only():
2550
self._check_history_violation(revision_id)
2551
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2552
self._write_last_revision_info(revno, revision_id)
2553
self._clear_cached_state()
2554
self._last_revision_info_cache = revno, revision_id
2555
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2538
2557
def basis_tree(self):
2539
2558
"""See Branch.basis_tree."""
2688
class BzrBranch8(BzrBranch5):
2679
def _read_last_revision_info(self):
2680
revision_string = self._transport.get_bytes('last-revision')
2681
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2682
revision_id = cache_utf8.get_cached_utf8(revision_id)
2684
return revno, revision_id
2686
def _write_last_revision_info(self, revno, revision_id):
2687
"""Simply write out the revision id, with no checks.
2689
Use set_last_revision_info to perform this safely.
2691
Does not update the revision_history cache.
2693
revision_id = _mod_revision.ensure_null(revision_id)
2694
out_string = '%d %s\n' % (revno, revision_id)
2695
self._transport.put_bytes('last-revision', out_string,
2696
mode=self.bzrdir._get_file_mode())
2699
class FullHistoryBzrBranch(BzrBranch):
2700
"""Bzr branch which contains the full revision history."""
2703
def set_last_revision_info(self, revno, revision_id):
2704
if not revision_id or not isinstance(revision_id, basestring):
2705
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2706
revision_id = _mod_revision.ensure_null(revision_id)
2707
# this old format stores the full history, but this api doesn't
2708
# provide it, so we must generate, and might as well check it's
2710
history = self._lefthand_history(revision_id)
2711
if len(history) != revno:
2712
raise AssertionError('%d != %d' % (len(history), revno))
2713
self._set_revision_history(history)
2715
def _read_last_revision_info(self):
2716
rh = self.revision_history()
2719
return (revno, rh[-1])
2721
return (0, _mod_revision.NULL_REVISION)
2723
@deprecated_method(deprecated_in((2, 4, 0)))
2725
def set_revision_history(self, rev_history):
2726
"""See Branch.set_revision_history."""
2727
self._set_revision_history(rev_history)
2729
def _set_revision_history(self, rev_history):
2730
if 'evil' in debug.debug_flags:
2731
mutter_callsite(3, "set_revision_history scales with history.")
2732
check_not_reserved_id = _mod_revision.check_not_reserved_id
2733
for rev_id in rev_history:
2734
check_not_reserved_id(rev_id)
2735
if Branch.hooks['post_change_branch_tip']:
2736
# Don't calculate the last_revision_info() if there are no hooks
2738
old_revno, old_revid = self.last_revision_info()
2739
if len(rev_history) == 0:
2740
revid = _mod_revision.NULL_REVISION
2742
revid = rev_history[-1]
2743
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2744
self._write_revision_history(rev_history)
2745
self._clear_cached_state()
2746
self._cache_revision_history(rev_history)
2747
for hook in Branch.hooks['set_rh']:
2748
hook(self, rev_history)
2749
if Branch.hooks['post_change_branch_tip']:
2750
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2752
def _write_revision_history(self, history):
2753
"""Factored out of set_revision_history.
2755
This performs the actual writing to disk.
2756
It is intended to be called by set_revision_history."""
2757
self._transport.put_bytes(
2758
'revision-history', '\n'.join(history),
2759
mode=self.bzrdir._get_file_mode())
2761
def _gen_revision_history(self):
2762
history = self._transport.get_bytes('revision-history').split('\n')
2763
if history[-1:] == ['']:
2764
# There shouldn't be a trailing newline, but just in case.
2768
def _synchronize_history(self, destination, revision_id):
2769
if not isinstance(destination, FullHistoryBzrBranch):
2770
super(BzrBranch, self)._synchronize_history(
2771
destination, revision_id)
2773
if revision_id == _mod_revision.NULL_REVISION:
2776
new_history = self.revision_history()
2777
if revision_id is not None and new_history != []:
2779
new_history = new_history[:new_history.index(revision_id) + 1]
2781
rev = self.repository.get_revision(revision_id)
2782
new_history = rev.get_history(self.repository)[1:]
2783
destination._set_revision_history(new_history)
2786
def generate_revision_history(self, revision_id, last_rev=None,
2788
"""Create a new revision history that will finish with revision_id.
2790
:param revision_id: the new tip to use.
2791
:param last_rev: The previous last_revision. If not None, then this
2792
must be a ancestory of revision_id, or DivergedBranches is raised.
2793
:param other_branch: The other branch that DivergedBranches should
2794
raise with respect to.
2796
self._set_revision_history(self._lefthand_history(revision_id,
2797
last_rev, other_branch))
2800
class BzrBranch5(FullHistoryBzrBranch):
2801
"""A format 5 branch. This supports new features over plain branches.
2803
It has support for a master_branch which is the data for bound branches.
2807
class BzrBranch8(BzrBranch):
2689
2808
"""A branch that stores tree-reference locations."""
2691
2810
def _open_hook(self):
2717
2836
self._last_revision_info_cache = None
2718
2837
self._reference_info = None
2720
def _last_revision_info(self):
2721
revision_string = self._transport.get_bytes('last-revision')
2722
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2723
revision_id = cache_utf8.get_cached_utf8(revision_id)
2725
return revno, revision_id
2727
def _write_last_revision_info(self, revno, revision_id):
2728
"""Simply write out the revision id, with no checks.
2730
Use set_last_revision_info to perform this safely.
2732
Does not update the revision_history cache.
2733
Intended to be called by set_last_revision_info and
2734
_write_revision_history.
2736
revision_id = _mod_revision.ensure_null(revision_id)
2737
out_string = '%d %s\n' % (revno, revision_id)
2738
self._transport.put_bytes('last-revision', out_string,
2739
mode=self.bzrdir._get_file_mode())
2742
def set_last_revision_info(self, revno, revision_id):
2743
revision_id = _mod_revision.ensure_null(revision_id)
2744
old_revno, old_revid = self.last_revision_info()
2745
if self._get_append_revisions_only():
2746
self._check_history_violation(revision_id)
2747
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2748
self._write_last_revision_info(revno, revision_id)
2749
self._clear_cached_state()
2750
self._last_revision_info_cache = revno, revision_id
2751
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2753
def _synchronize_history(self, destination, revision_id):
2754
"""Synchronize last revision and revision history between branches.
2756
:see: Branch._synchronize_history
2758
# XXX: The base Branch has a fast implementation of this method based
2759
# on set_last_revision_info, but BzrBranch/BzrBranch5 have a slower one
2760
# that uses set_revision_history. This class inherits from BzrBranch5,
2761
# but wants the fast implementation, so it calls
2762
# Branch._synchronize_history directly.
2763
Branch._synchronize_history(self, destination, revision_id)
2765
2839
def _check_history_violation(self, revision_id):
2766
last_revision = _mod_revision.ensure_null(self.last_revision())
2840
current_revid = self.last_revision()
2841
last_revision = _mod_revision.ensure_null(current_revid)
2767
2842
if _mod_revision.is_null(last_revision):
2769
if last_revision not in self._lefthand_history(revision_id):
2770
raise errors.AppendRevisionsOnlyViolation(self.user_url)
2844
graph = self.repository.get_graph()
2845
for lh_ancestor in graph.iter_lefthand_ancestry(revision_id):
2846
if lh_ancestor == current_revid:
2848
raise errors.AppendRevisionsOnlyViolation(self.user_url)
2772
2850
def _gen_revision_history(self):
2773
2851
"""Generate the revision history from last revision
3225
3271
raise NotImplementedError(self.push)
3274
def copy_content_into(self, revision_id=None):
3275
"""Copy the content of source into target
3277
revision_id: if not None, the revision history in the new branch will
3278
be truncated to end with revision_id.
3280
raise NotImplementedError(self.copy_content_into)
3283
def fetch(self, stop_revision=None, limit=None):
3286
:param stop_revision: Last revision to fetch
3287
:param limit: Optional rough limit of revisions to fetch
3289
raise NotImplementedError(self.fetch)
3228
3292
class GenericInterBranch(InterBranch):
3229
"""InterBranch implementation that uses public Branch functions.
3233
def _get_branch_formats_to_test():
3234
return BranchFormat._default_format, BranchFormat._default_format
3236
def update_revisions(self, stop_revision=None, overwrite=False,
3238
"""See InterBranch.update_revisions()."""
3293
"""InterBranch implementation that uses public Branch functions."""
3296
def is_compatible(klass, source, target):
3297
# GenericBranch uses the public API, so always compatible
3301
def _get_branch_formats_to_test(klass):
3302
return [(format_registry.get_default(), format_registry.get_default())]
3305
def unwrap_format(klass, format):
3306
if isinstance(format, remote.RemoteBranchFormat):
3307
format._ensure_real()
3308
return format._custom_format
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
self.source.update_references(self.target)
3319
self.source._synchronize_history(self.target, revision_id)
3321
parent = self.source.get_parent()
3322
except errors.InaccessibleParent, e:
3323
mutter('parent was not accessible to copy: %s', e)
3326
self.target.set_parent(parent)
3327
if self.source._push_should_merge_tags():
3328
self.source.tags.merge_to(self.target.tags)
3331
def fetch(self, stop_revision=None, limit=None):
3332
if self.target.base == self.source.base:
3239
3334
self.source.lock_read()
3241
other_revno, other_last_revision = self.source.last_revision_info()
3242
stop_revno = None # unknown
3243
if stop_revision is None:
3244
stop_revision = other_last_revision
3245
if _mod_revision.is_null(stop_revision):
3246
# if there are no commits, we're done.
3248
stop_revno = other_revno
3250
# what's the current last revision, before we fetch [and change it
3252
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3253
# we fetch here so that we don't process data twice in the common
3254
# case of having something to pull, and so that the check for
3255
# already merged can operate on the just fetched graph, which will
3256
# be cached in memory.
3257
self.target.fetch(self.source, stop_revision)
3258
# Check to see if one is an ancestor of the other
3261
graph = self.target.repository.get_graph()
3262
if self.target._check_if_descendant_or_diverged(
3263
stop_revision, last_rev, graph, self.source):
3264
# stop_revision is a descendant of last_rev, but we aren't
3265
# overwriting, so we're done.
3267
if stop_revno is None:
3269
graph = self.target.repository.get_graph()
3270
this_revno, this_last_revision = \
3271
self.target.last_revision_info()
3272
stop_revno = graph.find_distance_to_null(stop_revision,
3273
[(other_last_revision, other_revno),
3274
(this_last_revision, this_revno)])
3275
self.target.set_last_revision_info(stop_revno, stop_revision)
3336
fetch_spec_factory = fetch.FetchSpecFactory()
3337
fetch_spec_factory.source_branch = self.source
3338
fetch_spec_factory.source_branch_stop_revision_id = stop_revision
3339
fetch_spec_factory.source_repo = self.source.repository
3340
fetch_spec_factory.target_repo = self.target.repository
3341
fetch_spec_factory.target_repo_kind = fetch.TargetRepoKinds.PREEXISTING
3342
fetch_spec_factory.limit = limit
3343
fetch_spec = fetch_spec_factory.make_fetch_spec()
3344
return self.target.repository.fetch(self.source.repository,
3345
fetch_spec=fetch_spec)
3277
3347
self.source.unlock()
3350
def _update_revisions(self, stop_revision=None, overwrite=False,
3352
other_revno, other_last_revision = self.source.last_revision_info()
3353
stop_revno = None # unknown
3354
if stop_revision is None:
3355
stop_revision = other_last_revision
3356
if _mod_revision.is_null(stop_revision):
3357
# if there are no commits, we're done.
3359
stop_revno = other_revno
3361
# what's the current last revision, before we fetch [and change it
3363
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3364
# we fetch here so that we don't process data twice in the common
3365
# case of having something to pull, and so that the check for
3366
# already merged can operate on the just fetched graph, which will
3367
# be cached in memory.
3368
self.fetch(stop_revision=stop_revision)
3369
# Check to see if one is an ancestor of the other
3372
graph = self.target.repository.get_graph()
3373
if self.target._check_if_descendant_or_diverged(
3374
stop_revision, last_rev, graph, self.source):
3375
# stop_revision is a descendant of last_rev, but we aren't
3376
# overwriting, so we're done.
3378
if stop_revno is None:
3380
graph = self.target.repository.get_graph()
3381
this_revno, this_last_revision = \
3382
self.target.last_revision_info()
3383
stop_revno = graph.find_distance_to_null(stop_revision,
3384
[(other_last_revision, other_revno),
3385
(this_last_revision, this_revno)])
3386
self.target.set_last_revision_info(stop_revno, stop_revision)
3279
3389
def pull(self, overwrite=False, stop_revision=None,
3390
possible_transports=None, run_hooks=True,
3391
_override_hook_target=None, local=False):
3392
"""Pull from source into self, updating my master if any.
3394
:param run_hooks: Private parameter - if false, this branch
3395
is being called because it's the master of the primary branch,
3396
so it should not run its hooks.
3398
bound_location = self.target.get_bound_location()
3399
if local and not bound_location:
3400
raise errors.LocalRequiresBoundBranch()
3401
master_branch = None
3402
source_is_master = False
3404
# bound_location comes from a config file, some care has to be
3405
# taken to relate it to source.user_url
3406
normalized = urlutils.normalize_url(bound_location)
3408
relpath = self.source.user_transport.relpath(normalized)
3409
source_is_master = (relpath == '')
3410
except (errors.PathNotChild, errors.InvalidURL):
3411
source_is_master = False
3412
if not local and bound_location and not source_is_master:
3413
# not pulling from master, so we need to update master.
3414
master_branch = self.target.get_master_branch(possible_transports)
3415
master_branch.lock_write()
3418
# pull from source into master.
3419
master_branch.pull(self.source, overwrite, stop_revision,
3421
return self._pull(overwrite,
3422
stop_revision, _hook_master=master_branch,
3423
run_hooks=run_hooks,
3424
_override_hook_target=_override_hook_target,
3425
merge_tags_to_master=not source_is_master)
3428
master_branch.unlock()
3430
def push(self, overwrite=False, stop_revision=None, lossy=False,
3431
_override_hook_source_branch=None):
3432
"""See InterBranch.push.
3434
This is the basic concrete implementation of push()
3436
:param _override_hook_source_branch: If specified, run the hooks
3437
passing this Branch as the source, rather than self. This is for
3438
use of RemoteBranch, where push is delegated to the underlying
3442
raise errors.LossyPushToSameVCS(self.source, self.target)
3443
# TODO: Public option to disable running hooks - should be trivial but
3446
op = cleanup.OperationWithCleanups(self._push_with_bound_branches)
3447
op.add_cleanup(self.source.lock_read().unlock)
3448
op.add_cleanup(self.target.lock_write().unlock)
3449
return op.run(overwrite, stop_revision,
3450
_override_hook_source_branch=_override_hook_source_branch)
3452
def _basic_push(self, overwrite, stop_revision):
3453
"""Basic implementation of push without bound branches or hooks.
3455
Must be called with source read locked and target write locked.
3457
result = BranchPushResult()
3458
result.source_branch = self.source
3459
result.target_branch = self.target
3460
result.old_revno, result.old_revid = self.target.last_revision_info()
3461
self.source.update_references(self.target)
3462
if result.old_revid != stop_revision:
3463
# We assume that during 'push' this repository is closer than
3465
graph = self.source.repository.get_graph(self.target.repository)
3466
self._update_revisions(stop_revision, overwrite=overwrite,
3468
if self.source._push_should_merge_tags():
3469
result.tag_updates, result.tag_conflicts = (
3470
self.source.tags.merge_to(self.target.tags, overwrite))
3471
result.new_revno, result.new_revid = self.target.last_revision_info()
3474
def _push_with_bound_branches(self, operation, overwrite, stop_revision,
3475
_override_hook_source_branch=None):
3476
"""Push from source into target, and into target's master if any.
3479
if _override_hook_source_branch:
3480
result.source_branch = _override_hook_source_branch
3481
for hook in Branch.hooks['post_push']:
3484
bound_location = self.target.get_bound_location()
3485
if bound_location and self.target.base != bound_location:
3486
# there is a master branch.
3488
# XXX: Why the second check? Is it even supported for a branch to
3489
# be bound to itself? -- mbp 20070507
3490
master_branch = self.target.get_master_branch()
3491
master_branch.lock_write()
3492
operation.add_cleanup(master_branch.unlock)
3493
# push into the master from the source branch.
3494
master_inter = InterBranch.get(self.source, master_branch)
3495
master_inter._basic_push(overwrite, stop_revision)
3496
# and push into the target branch from the source. Note that
3497
# we push from the source branch again, because it's considered
3498
# the highest bandwidth repository.
3499
result = self._basic_push(overwrite, stop_revision)
3500
result.master_branch = master_branch
3501
result.local_branch = self.target
3503
master_branch = None
3505
result = self._basic_push(overwrite, stop_revision)
3506
# TODO: Why set master_branch and local_branch if there's no
3507
# binding? Maybe cleaner to just leave them unset? -- mbp
3509
result.master_branch = self.target
3510
result.local_branch = None
3514
def _pull(self, overwrite=False, stop_revision=None,
3280
3515
possible_transports=None, _hook_master=None, run_hooks=True,
3281
_override_hook_target=None, local=False):
3516
_override_hook_target=None, local=False,
3517
merge_tags_to_master=True):
3282
3518
"""See Branch.pull.
3520
This function is the core worker, used by GenericInterBranch.pull to
3521
avoid duplication when pulling source->master and source->local.
3284
3523
:param _hook_master: Private parameter - set the branch to
3285
3524
be supplied as the master to pull hooks.
3286
3525
:param run_hooks: Private parameter - if false, this branch
3287
3526
is being called because it's the master of the primary branch,
3288
3527
so it should not run its hooks.
3528
is being called because it's the master of the primary branch,
3529
so it should not run its hooks.
3289
3530
:param _override_hook_target: Private parameter - set the branch to be
3290
3531
supplied as the target_branch to pull hooks.
3291
3532
:param local: Only update the local branch, and not the bound branch.
3331
3573
self.source.unlock()
3334
def push(self, overwrite=False, stop_revision=None,
3335
_override_hook_source_branch=None):
3336
"""See InterBranch.push.
3338
This is the basic concrete implementation of push()
3340
:param _override_hook_source_branch: If specified, run
3341
the hooks passing this Branch as the source, rather than self.
3342
This is for use of RemoteBranch, where push is delegated to the
3343
underlying vfs-based Branch.
3345
# TODO: Public option to disable running hooks - should be trivial but
3347
self.source.lock_read()
3349
return _run_with_write_locked_target(
3350
self.target, self._push_with_bound_branches, overwrite,
3352
_override_hook_source_branch=_override_hook_source_branch)
3354
self.source.unlock()
3356
def _push_with_bound_branches(self, overwrite, stop_revision,
3357
_override_hook_source_branch=None):
3358
"""Push from source into target, and into target's master if any.
3361
if _override_hook_source_branch:
3362
result.source_branch = _override_hook_source_branch
3363
for hook in Branch.hooks['post_push']:
3366
bound_location = self.target.get_bound_location()
3367
if bound_location and self.target.base != bound_location:
3368
# there is a master branch.
3370
# XXX: Why the second check? Is it even supported for a branch to
3371
# be bound to itself? -- mbp 20070507
3372
master_branch = self.target.get_master_branch()
3373
master_branch.lock_write()
3375
# push into the master from the source branch.
3376
self.source._basic_push(master_branch, overwrite, stop_revision)
3377
# and push into the target branch from the source. Note that we
3378
# push from the source branch again, because its considered the
3379
# highest bandwidth repository.
3380
result = self.source._basic_push(self.target, overwrite,
3382
result.master_branch = master_branch
3383
result.local_branch = self.target
3387
master_branch.unlock()
3390
result = self.source._basic_push(self.target, overwrite,
3392
# TODO: Why set master_branch and local_branch if there's no
3393
# binding? Maybe cleaner to just leave them unset? -- mbp
3395
result.master_branch = self.target
3396
result.local_branch = None
3401
def is_compatible(self, source, target):
3402
# GenericBranch uses the public API, so always compatible
3406
class InterToBranch5(GenericInterBranch):
3409
def _get_branch_formats_to_test():
3410
return BranchFormat._default_format, BzrBranchFormat5()
3412
def pull(self, overwrite=False, stop_revision=None,
3413
possible_transports=None, run_hooks=True,
3414
_override_hook_target=None, local=False):
3415
"""Pull from source into self, updating my master if any.
3417
:param run_hooks: Private parameter - if false, this branch
3418
is being called because it's the master of the primary branch,
3419
so it should not run its hooks.
3421
bound_location = self.target.get_bound_location()
3422
if local and not bound_location:
3423
raise errors.LocalRequiresBoundBranch()
3424
master_branch = None
3425
if not local and bound_location and self.source.user_url != bound_location:
3426
# not pulling from master, so we need to update master.
3427
master_branch = self.target.get_master_branch(possible_transports)
3428
master_branch.lock_write()
3431
# pull from source into master.
3432
master_branch.pull(self.source, overwrite, stop_revision,
3434
return super(InterToBranch5, self).pull(overwrite,
3435
stop_revision, _hook_master=master_branch,
3436
run_hooks=run_hooks,
3437
_override_hook_target=_override_hook_target)
3440
master_branch.unlock()
3443
3577
InterBranch.register_optimiser(GenericInterBranch)
3444
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
