507
438
"""Iterate over an inclusive range of sorted revisions."""
508
439
rev_iter = iter(merge_sorted_revisions)
509
440
if start_revision_id is not None:
510
for node in rev_iter:
441
for rev_id, depth, revno, end_of_merge in rev_iter:
512
442
if rev_id != start_revision_id:
515
445
# The decision to include the start or not
516
446
# depends on the stop_rule if a stop is provided
517
# so pop this node back into the iterator
518
rev_iter = chain(iter([node]), rev_iter)
448
iter([(rev_id, depth, revno, end_of_merge)]),
520
451
if stop_revision_id is None:
522
for node in rev_iter:
524
yield (rev_id, node.merge_depth, node.revno,
452
for rev_id, depth, revno, end_of_merge in rev_iter:
453
yield rev_id, depth, revno, end_of_merge
526
454
elif stop_rule == 'exclude':
527
for node in rev_iter:
455
for rev_id, depth, revno, end_of_merge in rev_iter:
529
456
if rev_id == stop_revision_id:
531
yield (rev_id, node.merge_depth, node.revno,
458
yield rev_id, depth, revno, end_of_merge
533
459
elif stop_rule == 'include':
534
for node in rev_iter:
536
yield (rev_id, node.merge_depth, node.revno,
460
for rev_id, depth, revno, end_of_merge in rev_iter:
461
yield rev_id, depth, revno, end_of_merge
538
462
if rev_id == stop_revision_id:
540
elif stop_rule == 'with-merges-without-common-ancestry':
541
# We want to exclude all revisions that are already part of the
542
# stop_revision_id ancestry.
543
graph = self.repository.get_graph()
544
ancestors = graph.find_unique_ancestors(start_revision_id,
546
for node in rev_iter:
548
if rev_id not in ancestors:
550
yield (rev_id, node.merge_depth, node.revno,
552
464
elif stop_rule == 'with-merges':
553
465
stop_rev = self.repository.get_revision(stop_revision_id)
554
466
if stop_rev.parent_ids:
555
467
left_parent = stop_rev.parent_ids[0]
557
469
left_parent = _mod_revision.NULL_REVISION
558
# left_parent is the actual revision we want to stop logging at,
559
# since we want to show the merged revisions after the stop_rev too
560
reached_stop_revision_id = False
561
revision_id_whitelist = []
562
for node in rev_iter:
470
for rev_id, depth, revno, end_of_merge in rev_iter:
564
471
if rev_id == left_parent:
565
# reached the left parent after the stop_revision
567
if (not reached_stop_revision_id or
568
rev_id in revision_id_whitelist):
569
yield (rev_id, node.merge_depth, node.revno,
571
if reached_stop_revision_id or rev_id == stop_revision_id:
572
# only do the merged revs of rev_id from now on
573
rev = self.repository.get_revision(rev_id)
575
reached_stop_revision_id = True
576
revision_id_whitelist.extend(rev.parent_ids)
473
yield rev_id, depth, revno, end_of_merge
578
475
raise ValueError('invalid stop_rule %r' % stop_rule)
580
def _filter_start_non_ancestors(self, rev_iter):
581
# If we started from a dotted revno, we want to consider it as a tip
582
# and don't want to yield revisions that are not part of its
583
# ancestry. Given the order guaranteed by the merge sort, we will see
584
# uninteresting descendants of the first parent of our tip before the
586
first = rev_iter.next()
587
(rev_id, merge_depth, revno, end_of_merge) = first
590
# We start at a mainline revision so by definition, all others
591
# revisions in rev_iter are ancestors
592
for node in rev_iter:
597
pmap = self.repository.get_parent_map([rev_id])
598
parents = pmap.get(rev_id, [])
600
whitelist.update(parents)
602
# If there is no parents, there is nothing of interest left
604
# FIXME: It's hard to test this scenario here as this code is never
605
# called in that case. -- vila 20100322
608
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
610
if rev_id in whitelist:
611
pmap = self.repository.get_parent_map([rev_id])
612
parents = pmap.get(rev_id, [])
613
whitelist.remove(rev_id)
614
whitelist.update(parents)
616
# We've reached the mainline, there is nothing left to
620
# A revision that is not part of the ancestry of our
623
yield (rev_id, merge_depth, revno, end_of_merge)
625
477
def leave_lock_in_place(self):
626
478
"""Tell this branch object not to release the physical lock when this
627
479
object is unlocked.
831
636
except (errors.NotStacked, errors.UnstackableBranchFormat,
832
637
errors.UnstackableRepositoryFormat):
640
# XXX: Lock correctness - should unlock our old repo if we were
642
# repositories don't offer an interface to remove fallback
643
# repositories today; take the conceptually simpler option and just
645
self.repository = self.bzrdir.find_repository()
646
self.repository.lock_write()
647
# for every revision reference the branch has, ensure it is pulled
649
source_repository = self._get_fallback_repository(old_url)
650
for revision_id in chain([self.last_revision()],
651
self.tags.get_reverse_tag_dict()):
652
self.repository.fetch(source_repository, revision_id,
836
655
self._activate_fallback_location(url)
837
656
# write this out after the repository is stacked to avoid setting a
838
657
# stacked config that doesn't work.
839
658
self._set_config_location('stacked_on_location', url)
842
"""Change a branch to be unstacked, copying data as needed.
844
Don't call this directly, use set_stacked_on_url(None).
846
pb = ui.ui_factory.nested_progress_bar()
848
pb.update("Unstacking")
849
# The basic approach here is to fetch the tip of the branch,
850
# including all available ghosts, from the existing stacked
851
# repository into a new repository object without the fallbacks.
853
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
854
# correct for CHKMap repostiories
855
old_repository = self.repository
856
if len(old_repository._fallback_repositories) != 1:
857
raise AssertionError("can't cope with fallback repositories "
858
"of %r (fallbacks: %r)" % (old_repository,
859
old_repository._fallback_repositories))
860
# Open the new repository object.
861
# Repositories don't offer an interface to remove fallback
862
# repositories today; take the conceptually simpler option and just
863
# reopen it. We reopen it starting from the URL so that we
864
# get a separate connection for RemoteRepositories and can
865
# stream from one of them to the other. This does mean doing
866
# separate SSH connection setup, but unstacking is not a
867
# common operation so it's tolerable.
868
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
869
new_repository = new_bzrdir.find_repository()
870
if new_repository._fallback_repositories:
871
raise AssertionError("didn't expect %r to have "
872
"fallback_repositories"
873
% (self.repository,))
874
# Replace self.repository with the new repository.
875
# Do our best to transfer the lock state (i.e. lock-tokens and
876
# lock count) of self.repository to the new repository.
877
lock_token = old_repository.lock_write().repository_token
878
self.repository = new_repository
879
if isinstance(self, remote.RemoteBranch):
880
# Remote branches can have a second reference to the old
881
# repository that need to be replaced.
882
if self._real_branch is not None:
883
self._real_branch.repository = new_repository
884
self.repository.lock_write(token=lock_token)
885
if lock_token is not None:
886
old_repository.leave_lock_in_place()
887
old_repository.unlock()
888
if lock_token is not None:
889
# XXX: self.repository.leave_lock_in_place() before this
890
# function will not be preserved. Fortunately that doesn't
891
# affect the current default format (2a), and would be a
892
# corner-case anyway.
893
# - Andrew Bennetts, 2010/06/30
894
self.repository.dont_leave_lock_in_place()
898
old_repository.unlock()
899
except errors.LockNotHeld:
902
if old_lock_count == 0:
903
raise AssertionError(
904
'old_repository should have been locked at least once.')
905
for i in range(old_lock_count-1):
906
self.repository.lock_write()
907
# Fetch from the old repository into the new.
908
old_repository.lock_read()
910
# XXX: If you unstack a branch while it has a working tree
911
# with a pending merge, the pending-merged revisions will no
912
# longer be present. You can (probably) revert and remerge.
914
tags_to_fetch = set(self.tags.get_reverse_tag_dict())
915
except errors.TagsNotSupported:
916
tags_to_fetch = set()
917
fetch_spec = _mod_graph.NotInOtherForRevs(self.repository,
918
old_repository, required_ids=[self.last_revision()],
919
if_present_ids=tags_to_fetch, find_ghosts=True).execute()
920
self.repository.fetch(old_repository, fetch_spec=fetch_spec)
922
old_repository.unlock()
926
661
def _set_tags_bytes(self, bytes):
927
662
"""Mirror method for _get_tags_bytes.
929
664
:seealso: Branch._get_tags_bytes.
931
op = cleanup.OperationWithCleanups(self._set_tags_bytes_locked)
932
op.add_cleanup(self.lock_write().unlock)
933
return op.run_simple(bytes)
935
def _set_tags_bytes_locked(self, bytes):
936
self._tags_bytes = bytes
937
return self._transport.put_bytes('tags', bytes)
666
return _run_with_write_locked_target(self, self._transport.put_bytes,
939
669
def _cache_revision_history(self, rev_history):
940
670
"""Set the cached revision history to rev_history.
1027
757
:return: A tuple (revno, revision_id).
1029
759
if self._last_revision_info_cache is None:
1030
self._last_revision_info_cache = self._read_last_revision_info()
760
self._last_revision_info_cache = self._last_revision_info()
1031
761
return self._last_revision_info_cache
1033
def _read_last_revision_info(self):
1034
raise NotImplementedError(self._read_last_revision_info)
1036
@deprecated_method(deprecated_in((2, 4, 0)))
763
def _last_revision_info(self):
764
rh = self.revision_history()
767
return (revno, rh[-1])
769
return (0, _mod_revision.NULL_REVISION)
771
@deprecated_method(deprecated_in((1, 6, 0)))
772
def missing_revisions(self, other, stop_revision=None):
773
"""Return a list of new revisions that would perfectly fit.
775
If self and other have not diverged, return a list of the revisions
776
present in other, but missing from self.
778
self_history = self.revision_history()
779
self_len = len(self_history)
780
other_history = other.revision_history()
781
other_len = len(other_history)
782
common_index = min(self_len, other_len) -1
783
if common_index >= 0 and \
784
self_history[common_index] != other_history[common_index]:
785
raise errors.DivergedBranches(self, other)
787
if stop_revision is None:
788
stop_revision = other_len
790
if stop_revision > other_len:
791
raise errors.NoSuchRevision(self, stop_revision)
792
return other_history[self_len:stop_revision]
795
def update_revisions(self, other, stop_revision=None, overwrite=False,
797
"""Pull in new perfect-fit revisions.
799
:param other: Another Branch to pull from
800
:param stop_revision: Updated until the given revision
801
:param overwrite: Always set the branch pointer, rather than checking
802
to see if it is a proper descendant.
803
:param graph: A Graph object that can be used to query history
804
information. This can be None.
807
return InterBranch.get(other, self).update_revisions(stop_revision,
1037
810
def import_last_revision_info(self, source_repo, revno, revid):
1038
811
"""Set the last revision info, importing from another repo if necessary.
813
This is used by the bound branch code to upload a revision to
814
the master branch first before updating the tip of the local branch.
1040
816
:param source_repo: Source repository to optionally fetch from
1041
817
:param revno: Revision number of the new tip
1042
818
:param revid: Revision id of the new tip
1360
1146
Callers will typically also want to check the repository.
1362
:param refs: Calculated refs for this branch as specified by
1363
branch._get_check_refs()
1364
1148
:return: A BranchCheckResult.
1366
result = BranchCheckResult(self)
1150
mainline_parent_id = None
1367
1151
last_revno, last_revision_id = self.last_revision_info()
1368
actual_revno = refs[('lefthand-distance', last_revision_id)]
1369
if actual_revno != last_revno:
1370
result.errors.append(errors.BzrCheckError(
1371
'revno does not match len(mainline) %s != %s' % (
1372
last_revno, actual_revno)))
1373
# TODO: We should probably also check that self.revision_history
1374
# matches the repository for older branch formats.
1375
# If looking for the code that cross-checks repository parents against
1376
# the iter_reverse_revision_history output, that is now a repository
1152
real_rev_history = list(self.repository.iter_reverse_revision_history(
1154
real_rev_history.reverse()
1155
if len(real_rev_history) != last_revno:
1156
raise errors.BzrCheckError('revno does not match len(mainline)'
1157
' %s != %s' % (last_revno, len(real_rev_history)))
1158
# TODO: We should probably also check that real_rev_history actually
1159
# matches self.revision_history()
1160
for revision_id in real_rev_history:
1162
revision = self.repository.get_revision(revision_id)
1163
except errors.NoSuchRevision, e:
1164
raise errors.BzrCheckError("mainline revision {%s} not in repository"
1166
# In general the first entry on the revision history has no parents.
1167
# But it's not illegal for it to have parents listed; this can happen
1168
# in imports from Arch when the parents weren't reachable.
1169
if mainline_parent_id is not None:
1170
if mainline_parent_id not in revision.parent_ids:
1171
raise errors.BzrCheckError("previous revision {%s} not listed among "
1173
% (mainline_parent_id, revision_id))
1174
mainline_parent_id = revision_id
1175
return BranchCheckResult(self)
1380
1177
def _get_checkout_format(self):
1381
1178
"""Return the most suitable metadir for a checkout of this branch.
1382
1179
Weaves are used if this branch's repository uses weaves.
1384
format = self.repository.bzrdir.checkout_metadir()
1385
format.set_branch_format(self._format)
1181
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
1182
from bzrlib.repofmt import weaverepo
1183
format = bzrdir.BzrDirMetaFormat1()
1184
format.repository_format = weaverepo.RepositoryFormat7()
1186
format = self.repository.bzrdir.checkout_metadir()
1187
format.set_branch_format(self._format)
1388
1190
def create_clone_on_transport(self, to_transport, revision_id=None,
1389
stacked_on=None, create_prefix=False, use_existing_dir=False,
1191
stacked_on=None, create_prefix=False, use_existing_dir=False):
1391
1192
"""Create a clone of this branch and its bzrdir.
1393
1194
:param to_transport: The transport to clone onto.
1813
1559
"basis revision. hooks MUST NOT modify this delta. "
1814
1560
" future_tree is an in-memory tree obtained from "
1815
1561
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1817
self.add_hook('post_commit',
1562
"tree.", (0,91), None))
1563
self.create_hook(HookPoint('post_commit',
1818
1564
"Called in the bzr client after a commit has completed. "
1819
1565
"post_commit is called with (local, master, old_revno, old_revid, "
1820
1566
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1821
"commit to a branch.", (0, 15))
1822
self.add_hook('post_uncommit',
1567
"commit to a branch.", (0, 15), None))
1568
self.create_hook(HookPoint('post_uncommit',
1823
1569
"Called in the bzr client after an uncommit completes. "
1824
1570
"post_uncommit is called with (local, master, old_revno, "
1825
1571
"old_revid, new_revno, new_revid) where local is the local branch "
1826
1572
"or None, master is the target branch, and an empty branch "
1827
"receives new_revno of 0, new_revid of None.", (0, 15))
1828
self.add_hook('pre_change_branch_tip',
1573
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1574
self.create_hook(HookPoint('pre_change_branch_tip',
1829
1575
"Called in bzr client and server before a change to the tip of a "
1830
1576
"branch is made. pre_change_branch_tip is called with a "
1831
1577
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1832
"commit, uncommit will all trigger this hook.", (1, 6))
1833
self.add_hook('post_change_branch_tip',
1578
"commit, uncommit will all trigger this hook.", (1, 6), None))
1579
self.create_hook(HookPoint('post_change_branch_tip',
1834
1580
"Called in bzr client and server after a change to the tip of a "
1835
1581
"branch is made. post_change_branch_tip is called with a "
1836
1582
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1837
"commit, uncommit will all trigger this hook.", (1, 4))
1838
self.add_hook('transform_fallback_location',
1583
"commit, uncommit will all trigger this hook.", (1, 4), None))
1584
self.create_hook(HookPoint('transform_fallback_location',
1839
1585
"Called when a stacked branch is activating its fallback "
1840
1586
"locations. transform_fallback_location is called with (branch, "
1841
1587
"url), and should return a new url. Returning the same url "
1908
1637
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1911
class BranchInitHookParams(object):
1912
"""Object holding parameters passed to `*_branch_init` hooks.
1914
There are 4 fields that hooks may wish to access:
1916
:ivar format: the branch format
1917
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1918
:ivar name: name of colocated branch, if any (or None)
1919
:ivar branch: the branch created
1921
Note that for lightweight checkouts, the bzrdir and format fields refer to
1922
the checkout, hence they are different from the corresponding fields in
1923
branch, which refer to the original branch.
1926
def __init__(self, format, a_bzrdir, name, branch):
1927
"""Create a group of BranchInitHook parameters.
1929
:param format: the branch format
1930
:param a_bzrdir: the BzrDir where the branch will be/has been
1932
:param name: name of colocated branch, if any (or None)
1933
:param branch: the branch created
1935
Note that for lightweight checkouts, the bzrdir and format fields refer
1936
to the checkout, hence they are different from the corresponding fields
1937
in branch, which refer to the original branch.
1939
self.format = format
1940
self.bzrdir = a_bzrdir
1942
self.branch = branch
1944
def __eq__(self, other):
1945
return self.__dict__ == other.__dict__
1948
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1951
class SwitchHookParams(object):
1952
"""Object holding parameters passed to `*_switch` hooks.
1954
There are 4 fields that hooks may wish to access:
1956
:ivar control_dir: BzrDir of the checkout to change
1957
:ivar to_branch: branch that the checkout is to reference
1958
:ivar force: skip the check for local commits in a heavy checkout
1959
:ivar revision_id: revision ID to switch to (or None)
1962
def __init__(self, control_dir, to_branch, force, revision_id):
1963
"""Create a group of SwitchHook parameters.
1965
:param control_dir: BzrDir of the checkout to change
1966
:param to_branch: branch that the checkout is to reference
1967
:param force: skip the check for local commits in a heavy checkout
1968
:param revision_id: revision ID to switch to (or None)
1970
self.control_dir = control_dir
1971
self.to_branch = to_branch
1973
self.revision_id = revision_id
1975
def __eq__(self, other):
1976
return self.__dict__ == other.__dict__
1979
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1980
self.control_dir, self.to_branch,
1640
class BzrBranchFormat4(BranchFormat):
1641
"""Bzr branch format 4.
1644
- a revision-history file.
1645
- a branch-lock lock file [ to be shared with the bzrdir ]
1648
def get_format_description(self):
1649
"""See BranchFormat.get_format_description()."""
1650
return "Branch format 4"
1652
def initialize(self, a_bzrdir):
1653
"""Create a branch of this format in a_bzrdir."""
1654
utf8_files = [('revision-history', ''),
1655
('branch-name', ''),
1657
return self._initialize_helper(a_bzrdir, utf8_files,
1658
lock_type='branch4', set_format=False)
1661
super(BzrBranchFormat4, self).__init__()
1662
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1664
def network_name(self):
1665
"""The network name for this format is the control dirs disk label."""
1666
return self._matchingbzrdir.get_format_string()
1668
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1669
"""See BranchFormat.open()."""
1671
# we are being called directly and must probe.
1672
raise NotImplementedError
1673
return BzrBranch(_format=self,
1674
_control_files=a_bzrdir._control_files,
1676
_repository=a_bzrdir.open_repository())
1679
return "Bazaar-NG branch format 4"
1984
1682
class BranchFormatMetadir(BranchFormat):
2501
2092
"""See Branch.print_file."""
2502
2093
return self.repository.print_file(file, revision_id)
2095
def _write_revision_history(self, history):
2096
"""Factored out of set_revision_history.
2098
This performs the actual writing to disk.
2099
It is intended to be called by BzrBranch5.set_revision_history."""
2100
self._transport.put_bytes(
2101
'revision-history', '\n'.join(history),
2102
mode=self.bzrdir._get_file_mode())
2105
def set_revision_history(self, rev_history):
2106
"""See Branch.set_revision_history."""
2107
if 'evil' in debug.debug_flags:
2108
mutter_callsite(3, "set_revision_history scales with history.")
2109
check_not_reserved_id = _mod_revision.check_not_reserved_id
2110
for rev_id in rev_history:
2111
check_not_reserved_id(rev_id)
2112
if Branch.hooks['post_change_branch_tip']:
2113
# Don't calculate the last_revision_info() if there are no hooks
2115
old_revno, old_revid = self.last_revision_info()
2116
if len(rev_history) == 0:
2117
revid = _mod_revision.NULL_REVISION
2119
revid = rev_history[-1]
2120
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2121
self._write_revision_history(rev_history)
2122
self._clear_cached_state()
2123
self._cache_revision_history(rev_history)
2124
for hook in Branch.hooks['set_rh']:
2125
hook(self, rev_history)
2126
if Branch.hooks['post_change_branch_tip']:
2127
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2129
def _synchronize_history(self, destination, revision_id):
2130
"""Synchronize last revision and revision history between branches.
2132
This version is most efficient when the destination is also a
2133
BzrBranch5, but works for BzrBranch6 as long as the revision
2134
history is the true lefthand parent history, and all of the revisions
2135
are in the destination's repository. If not, set_revision_history
2138
:param destination: The branch to copy the history into
2139
:param revision_id: The revision-id to truncate history at. May
2140
be None to copy complete history.
2142
if not isinstance(destination._format, BzrBranchFormat5):
2143
super(BzrBranch, self)._synchronize_history(
2144
destination, revision_id)
2146
if revision_id == _mod_revision.NULL_REVISION:
2149
new_history = self.revision_history()
2150
if revision_id is not None and new_history != []:
2152
new_history = new_history[:new_history.index(revision_id) + 1]
2154
rev = self.repository.get_revision(revision_id)
2155
new_history = rev.get_history(self.repository)[1:]
2156
destination.set_revision_history(new_history)
2504
2158
@needs_write_lock
2505
2159
def set_last_revision_info(self, revno, revision_id):
2506
if not revision_id or not isinstance(revision_id, basestring):
2507
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2160
"""Set the last revision of this branch.
2162
The caller is responsible for checking that the revno is correct
2163
for this revision id.
2165
It may be possible to set the branch last revision to an id not
2166
present in the repository. However, branches can also be
2167
configured to check constraints on history, in which case this may not
2508
2170
revision_id = _mod_revision.ensure_null(revision_id)
2509
old_revno, old_revid = self.last_revision_info()
2510
if self._get_append_revisions_only():
2511
self._check_history_violation(revision_id)
2512
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2513
self._write_last_revision_info(revno, revision_id)
2514
self._clear_cached_state()
2515
self._last_revision_info_cache = revno, revision_id
2516
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2171
# this old format stores the full history, but this api doesn't
2172
# provide it, so we must generate, and might as well check it's
2174
history = self._lefthand_history(revision_id)
2175
if len(history) != revno:
2176
raise AssertionError('%d != %d' % (len(history), revno))
2177
self.set_revision_history(history)
2179
def _gen_revision_history(self):
2180
history = self._transport.get_bytes('revision-history').split('\n')
2181
if history[-1:] == ['']:
2182
# There shouldn't be a trailing newline, but just in case.
2187
def generate_revision_history(self, revision_id, last_rev=None,
2189
"""Create a new revision history that will finish with revision_id.
2191
:param revision_id: the new tip to use.
2192
:param last_rev: The previous last_revision. If not None, then this
2193
must be a ancestory of revision_id, or DivergedBranches is raised.
2194
:param other_branch: The other branch that DivergedBranches should
2195
raise with respect to.
2197
self.set_revision_history(self._lefthand_history(revision_id,
2198
last_rev, other_branch))
2518
2200
def basis_tree(self):
2519
2201
"""See Branch.basis_tree."""
2640
def _read_last_revision_info(self):
2641
revision_string = self._transport.get_bytes('last-revision')
2642
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2643
revision_id = cache_utf8.get_cached_utf8(revision_id)
2645
return revno, revision_id
2647
def _write_last_revision_info(self, revno, revision_id):
2648
"""Simply write out the revision id, with no checks.
2650
Use set_last_revision_info to perform this safely.
2652
Does not update the revision_history cache.
2654
revision_id = _mod_revision.ensure_null(revision_id)
2655
out_string = '%d %s\n' % (revno, revision_id)
2656
self._transport.put_bytes('last-revision', out_string,
2657
mode=self.bzrdir._get_file_mode())
2660
class FullHistoryBzrBranch(BzrBranch):
2661
"""Bzr branch which contains the full revision history."""
2664
def set_last_revision_info(self, revno, revision_id):
2665
if not revision_id or not isinstance(revision_id, basestring):
2666
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2667
revision_id = _mod_revision.ensure_null(revision_id)
2668
# this old format stores the full history, but this api doesn't
2669
# provide it, so we must generate, and might as well check it's
2671
history = self._lefthand_history(revision_id)
2672
if len(history) != revno:
2673
raise AssertionError('%d != %d' % (len(history), revno))
2674
self._set_revision_history(history)
2676
def _read_last_revision_info(self):
2677
rh = self.revision_history()
2680
return (revno, rh[-1])
2682
return (0, _mod_revision.NULL_REVISION)
2684
@deprecated_method(deprecated_in((2, 4, 0)))
2686
def set_revision_history(self, rev_history):
2687
"""See Branch.set_revision_history."""
2688
self._set_revision_history(rev_history)
2690
def _set_revision_history(self, rev_history):
2691
if 'evil' in debug.debug_flags:
2692
mutter_callsite(3, "set_revision_history scales with history.")
2693
check_not_reserved_id = _mod_revision.check_not_reserved_id
2694
for rev_id in rev_history:
2695
check_not_reserved_id(rev_id)
2696
if Branch.hooks['post_change_branch_tip']:
2697
# Don't calculate the last_revision_info() if there are no hooks
2699
old_revno, old_revid = self.last_revision_info()
2700
if len(rev_history) == 0:
2701
revid = _mod_revision.NULL_REVISION
2703
revid = rev_history[-1]
2704
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2705
self._write_revision_history(rev_history)
2706
self._clear_cached_state()
2707
self._cache_revision_history(rev_history)
2708
for hook in Branch.hooks['set_rh']:
2709
hook(self, rev_history)
2710
if Branch.hooks['post_change_branch_tip']:
2711
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2713
def _write_revision_history(self, history):
2714
"""Factored out of set_revision_history.
2716
This performs the actual writing to disk.
2717
It is intended to be called by set_revision_history."""
2718
self._transport.put_bytes(
2719
'revision-history', '\n'.join(history),
2720
mode=self.bzrdir._get_file_mode())
2722
def _gen_revision_history(self):
2723
history = self._transport.get_bytes('revision-history').split('\n')
2724
if history[-1:] == ['']:
2725
# There shouldn't be a trailing newline, but just in case.
2729
def _synchronize_history(self, destination, revision_id):
2730
if not isinstance(destination, FullHistoryBzrBranch):
2731
super(BzrBranch, self)._synchronize_history(
2732
destination, revision_id)
2734
if revision_id == _mod_revision.NULL_REVISION:
2737
new_history = self.revision_history()
2738
if revision_id is not None and new_history != []:
2740
new_history = new_history[:new_history.index(revision_id) + 1]
2742
rev = self.repository.get_revision(revision_id)
2743
new_history = rev.get_history(self.repository)[1:]
2744
destination._set_revision_history(new_history)
2747
def generate_revision_history(self, revision_id, last_rev=None,
2749
"""Create a new revision history that will finish with revision_id.
2751
:param revision_id: the new tip to use.
2752
:param last_rev: The previous last_revision. If not None, then this
2753
must be a ancestory of revision_id, or DivergedBranches is raised.
2754
:param other_branch: The other branch that DivergedBranches should
2755
raise with respect to.
2757
self._set_revision_history(self._lefthand_history(revision_id,
2758
last_rev, other_branch))
2761
class BzrBranch5(FullHistoryBzrBranch):
2762
"""A format 5 branch. This supports new features over plain branches.
2764
It has support for a master_branch which is the data for bound branches.
2768
class BzrBranch8(BzrBranch):
2350
class BzrBranch8(BzrBranch5):
2769
2351
"""A branch that stores tree-reference locations."""
2771
2353
def _open_hook(self):
2790
2372
self._ignore_fallbacks = kwargs.get('ignore_fallbacks', False)
2791
2373
super(BzrBranch8, self).__init__(*args, **kwargs)
2792
2374
self._last_revision_info_cache = None
2375
self._partial_revision_history_cache = []
2793
2376
self._reference_info = None
2795
2378
def _clear_cached_state(self):
2796
2379
super(BzrBranch8, self)._clear_cached_state()
2797
2380
self._last_revision_info_cache = None
2381
self._partial_revision_history_cache = []
2798
2382
self._reference_info = None
2384
def _last_revision_info(self):
2385
revision_string = self._transport.get_bytes('last-revision')
2386
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2387
revision_id = cache_utf8.get_cached_utf8(revision_id)
2389
return revno, revision_id
2391
def _write_last_revision_info(self, revno, revision_id):
2392
"""Simply write out the revision id, with no checks.
2394
Use set_last_revision_info to perform this safely.
2396
Does not update the revision_history cache.
2397
Intended to be called by set_last_revision_info and
2398
_write_revision_history.
2400
revision_id = _mod_revision.ensure_null(revision_id)
2401
out_string = '%d %s\n' % (revno, revision_id)
2402
self._transport.put_bytes('last-revision', out_string,
2403
mode=self.bzrdir._get_file_mode())
2406
def set_last_revision_info(self, revno, revision_id):
2407
revision_id = _mod_revision.ensure_null(revision_id)
2408
old_revno, old_revid = self.last_revision_info()
2409
if self._get_append_revisions_only():
2410
self._check_history_violation(revision_id)
2411
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2412
self._write_last_revision_info(revno, revision_id)
2413
self._clear_cached_state()
2414
self._last_revision_info_cache = revno, revision_id
2415
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2417
def _synchronize_history(self, destination, revision_id):
2418
"""Synchronize last revision and revision history between branches.
2420
:see: Branch._synchronize_history
2422
# XXX: The base Branch has a fast implementation of this method based
2423
# on set_last_revision_info, but BzrBranch/BzrBranch5 have a slower one
2424
# that uses set_revision_history. This class inherits from BzrBranch5,
2425
# but wants the fast implementation, so it calls
2426
# Branch._synchronize_history directly.
2427
Branch._synchronize_history(self, destination, revision_id)
2800
2429
def _check_history_violation(self, revision_id):
2801
current_revid = self.last_revision()
2802
last_revision = _mod_revision.ensure_null(current_revid)
2430
last_revision = _mod_revision.ensure_null(self.last_revision())
2803
2431
if _mod_revision.is_null(last_revision):
2805
graph = self.repository.get_graph()
2806
for lh_ancestor in graph.iter_lefthand_ancestry(revision_id):
2807
if lh_ancestor == current_revid:
2809
raise errors.AppendRevisionsOnlyViolation(self.user_url)
2433
if last_revision not in self._lefthand_history(revision_id):
2434
raise errors.AppendRevisionsOnlyViolation(self.base)
2811
2436
def _gen_revision_history(self):
2812
2437
"""Generate the revision history from last revision
3217
2924
raise NotImplementedError(self.push)
3220
def copy_content_into(self, revision_id=None):
3221
"""Copy the content of source into target
3223
revision_id: if not None, the revision history in the new branch will
3224
be truncated to end with revision_id.
3226
raise NotImplementedError(self.copy_content_into)
3229
def fetch(self, stop_revision=None, limit=None):
3232
:param stop_revision: Last revision to fetch
3233
:param limit: Optional rough limit of revisions to fetch
3235
raise NotImplementedError(self.fetch)
3238
2927
class GenericInterBranch(InterBranch):
3239
"""InterBranch implementation that uses public Branch functions."""
3242
def is_compatible(klass, source, target):
3243
# GenericBranch uses the public API, so always compatible
3247
def _get_branch_formats_to_test(klass):
3248
return [(format_registry.get_default(), format_registry.get_default())]
3251
def unwrap_format(klass, format):
3252
if isinstance(format, remote.RemoteBranchFormat):
3253
format._ensure_real()
3254
return format._custom_format
3258
def copy_content_into(self, revision_id=None):
3259
"""Copy the content of source into target
3261
revision_id: if not None, the revision history in the new branch will
3262
be truncated to end with revision_id.
3264
self.source.update_references(self.target)
3265
self.source._synchronize_history(self.target, revision_id)
3267
parent = self.source.get_parent()
3268
except errors.InaccessibleParent, e:
3269
mutter('parent was not accessible to copy: %s', e)
3272
self.target.set_parent(parent)
3273
if self.source._push_should_merge_tags():
3274
self.source.tags.merge_to(self.target.tags)
3277
def fetch(self, stop_revision=None, limit=None):
3278
if self.target.base == self.source.base:
2928
"""InterBranch implementation that uses public Branch functions.
2932
def _get_branch_formats_to_test():
2933
return BranchFormat._default_format, BranchFormat._default_format
2935
def update_revisions(self, stop_revision=None, overwrite=False,
2937
"""See InterBranch.update_revisions()."""
3280
2938
self.source.lock_read()
3282
fetch_spec_factory = fetch.FetchSpecFactory()
3283
fetch_spec_factory.source_branch = self.source
3284
fetch_spec_factory.source_branch_stop_revision_id = stop_revision
3285
fetch_spec_factory.source_repo = self.source.repository
3286
fetch_spec_factory.target_repo = self.target.repository
3287
fetch_spec_factory.target_repo_kind = fetch.TargetRepoKinds.PREEXISTING
3288
fetch_spec_factory.limit = limit
3289
fetch_spec = fetch_spec_factory.make_fetch_spec()
3290
return self.target.repository.fetch(self.source.repository,
3291
fetch_spec=fetch_spec)
2940
other_revno, other_last_revision = self.source.last_revision_info()
2941
stop_revno = None # unknown
2942
if stop_revision is None:
2943
stop_revision = other_last_revision
2944
if _mod_revision.is_null(stop_revision):
2945
# if there are no commits, we're done.
2947
stop_revno = other_revno
2949
# what's the current last revision, before we fetch [and change it
2951
last_rev = _mod_revision.ensure_null(self.target.last_revision())
2952
# we fetch here so that we don't process data twice in the common
2953
# case of having something to pull, and so that the check for
2954
# already merged can operate on the just fetched graph, which will
2955
# be cached in memory.
2956
self.target.fetch(self.source, stop_revision)
2957
# Check to see if one is an ancestor of the other
2960
graph = self.target.repository.get_graph()
2961
if self.target._check_if_descendant_or_diverged(
2962
stop_revision, last_rev, graph, self.source):
2963
# stop_revision is a descendant of last_rev, but we aren't
2964
# overwriting, so we're done.
2966
if stop_revno is None:
2968
graph = self.target.repository.get_graph()
2969
this_revno, this_last_revision = \
2970
self.target.last_revision_info()
2971
stop_revno = graph.find_distance_to_null(stop_revision,
2972
[(other_last_revision, other_revno),
2973
(this_last_revision, this_revno)])
2974
self.target.set_last_revision_info(stop_revno, stop_revision)
3293
2976
self.source.unlock()
3296
def _update_revisions(self, stop_revision=None, overwrite=False,
3298
other_revno, other_last_revision = self.source.last_revision_info()
3299
stop_revno = None # unknown
3300
if stop_revision is None:
3301
stop_revision = other_last_revision
3302
if _mod_revision.is_null(stop_revision):
3303
# if there are no commits, we're done.
3305
stop_revno = other_revno
3307
# what's the current last revision, before we fetch [and change it
3309
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3310
# we fetch here so that we don't process data twice in the common
3311
# case of having something to pull, and so that the check for
3312
# already merged can operate on the just fetched graph, which will
3313
# be cached in memory.
3314
self.fetch(stop_revision=stop_revision)
3315
# Check to see if one is an ancestor of the other
3318
graph = self.target.repository.get_graph()
3319
if self.target._check_if_descendant_or_diverged(
3320
stop_revision, last_rev, graph, self.source):
3321
# stop_revision is a descendant of last_rev, but we aren't
3322
# overwriting, so we're done.
3324
if stop_revno is None:
3326
graph = self.target.repository.get_graph()
3327
this_revno, this_last_revision = \
3328
self.target.last_revision_info()
3329
stop_revno = graph.find_distance_to_null(stop_revision,
3330
[(other_last_revision, other_revno),
3331
(this_last_revision, this_revno)])
3332
self.target.set_last_revision_info(stop_revno, stop_revision)
3335
2978
def pull(self, overwrite=False, stop_revision=None,
3336
possible_transports=None, run_hooks=True,
3337
_override_hook_target=None, local=False):
3338
"""Pull from source into self, updating my master if any.
3340
:param run_hooks: Private parameter - if false, this branch
3341
is being called because it's the master of the primary branch,
3342
so it should not run its hooks.
3344
bound_location = self.target.get_bound_location()
3345
if local and not bound_location:
3346
raise errors.LocalRequiresBoundBranch()
3347
master_branch = None
3348
source_is_master = False
3350
# bound_location comes from a config file, some care has to be
3351
# taken to relate it to source.user_url
3352
normalized = urlutils.normalize_url(bound_location)
3354
relpath = self.source.user_transport.relpath(normalized)
3355
source_is_master = (relpath == '')
3356
except (errors.PathNotChild, errors.InvalidURL):
3357
source_is_master = False
3358
if not local and bound_location and not source_is_master:
3359
# not pulling from master, so we need to update master.
3360
master_branch = self.target.get_master_branch(possible_transports)
3361
master_branch.lock_write()
3364
# pull from source into master.
3365
master_branch.pull(self.source, overwrite, stop_revision,
3367
return self._pull(overwrite,
3368
stop_revision, _hook_master=master_branch,
3369
run_hooks=run_hooks,
3370
_override_hook_target=_override_hook_target,
3371
merge_tags_to_master=not source_is_master)
3374
master_branch.unlock()
3376
def push(self, overwrite=False, stop_revision=None, lossy=False,
3377
_override_hook_source_branch=None):
3378
"""See InterBranch.push.
3380
This is the basic concrete implementation of push()
3382
:param _override_hook_source_branch: If specified, run the hooks
3383
passing this Branch as the source, rather than self. This is for
3384
use of RemoteBranch, where push is delegated to the underlying
3388
raise errors.LossyPushToSameVCS(self.source, self.target)
3389
# TODO: Public option to disable running hooks - should be trivial but
3392
op = cleanup.OperationWithCleanups(self._push_with_bound_branches)
3393
op.add_cleanup(self.source.lock_read().unlock)
3394
op.add_cleanup(self.target.lock_write().unlock)
3395
return op.run(overwrite, stop_revision,
3396
_override_hook_source_branch=_override_hook_source_branch)
3398
def _basic_push(self, overwrite, stop_revision):
3399
"""Basic implementation of push without bound branches or hooks.
3401
Must be called with source read locked and target write locked.
3403
result = BranchPushResult()
3404
result.source_branch = self.source
3405
result.target_branch = self.target
3406
result.old_revno, result.old_revid = self.target.last_revision_info()
3407
self.source.update_references(self.target)
3408
if result.old_revid != stop_revision:
3409
# We assume that during 'push' this repository is closer than
3411
graph = self.source.repository.get_graph(self.target.repository)
3412
self._update_revisions(stop_revision, overwrite=overwrite,
3414
if self.source._push_should_merge_tags():
3415
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3417
result.new_revno, result.new_revid = self.target.last_revision_info()
3420
def _push_with_bound_branches(self, operation, overwrite, stop_revision,
3421
_override_hook_source_branch=None):
3422
"""Push from source into target, and into target's master if any.
3425
if _override_hook_source_branch:
3426
result.source_branch = _override_hook_source_branch
3427
for hook in Branch.hooks['post_push']:
3430
bound_location = self.target.get_bound_location()
3431
if bound_location and self.target.base != bound_location:
3432
# there is a master branch.
3434
# XXX: Why the second check? Is it even supported for a branch to
3435
# be bound to itself? -- mbp 20070507
3436
master_branch = self.target.get_master_branch()
3437
master_branch.lock_write()
3438
operation.add_cleanup(master_branch.unlock)
3439
# push into the master from the source branch.
3440
master_inter = InterBranch.get(self.source, master_branch)
3441
master_inter._basic_push(overwrite, stop_revision)
3442
# and push into the target branch from the source. Note that
3443
# we push from the source branch again, because it's considered
3444
# the highest bandwidth repository.
3445
result = self._basic_push(overwrite, stop_revision)
3446
result.master_branch = master_branch
3447
result.local_branch = self.target
3449
master_branch = None
3451
result = self._basic_push(overwrite, stop_revision)
3452
# TODO: Why set master_branch and local_branch if there's no
3453
# binding? Maybe cleaner to just leave them unset? -- mbp
3455
result.master_branch = self.target
3456
result.local_branch = None
3460
def _pull(self, overwrite=False, stop_revision=None,
3461
2979
possible_transports=None, _hook_master=None, run_hooks=True,
3462
_override_hook_target=None, local=False,
3463
merge_tags_to_master=True):
2980
_override_hook_target=None, local=False):
3464
2981
"""See Branch.pull.
3466
This function is the core worker, used by GenericInterBranch.pull to
3467
avoid duplication when pulling source->master and source->local.
3469
2983
:param _hook_master: Private parameter - set the branch to
3470
2984
be supplied as the master to pull hooks.
3471
2985
:param run_hooks: Private parameter - if false, this branch
3472
2986
is being called because it's the master of the primary branch,
3473
2987
so it should not run its hooks.
3474
is being called because it's the master of the primary branch,
3475
so it should not run its hooks.
3476
2988
:param _override_hook_target: Private parameter - set the branch to be
3477
2989
supplied as the target_branch to pull hooks.
3478
2990
:param local: Only update the local branch, and not the bound branch.
3518
3030
self.source.unlock()
3033
def push(self, overwrite=False, stop_revision=None,
3034
_override_hook_source_branch=None):
3035
"""See InterBranch.push.
3037
This is the basic concrete implementation of push()
3039
:param _override_hook_source_branch: If specified, run
3040
the hooks passing this Branch as the source, rather than self.
3041
This is for use of RemoteBranch, where push is delegated to the
3042
underlying vfs-based Branch.
3044
# TODO: Public option to disable running hooks - should be trivial but
3046
self.source.lock_read()
3048
return _run_with_write_locked_target(
3049
self.target, self._push_with_bound_branches, overwrite,
3051
_override_hook_source_branch=_override_hook_source_branch)
3053
self.source.unlock()
3056
def _push_with_bound_branches(self, overwrite, stop_revision,
3057
_override_hook_source_branch=None):
3058
"""Push from source into target, and into target's master if any.
3061
if _override_hook_source_branch:
3062
result.source_branch = _override_hook_source_branch
3063
for hook in Branch.hooks['post_push']:
3066
bound_location = self.target.get_bound_location()
3067
if bound_location and self.target.base != bound_location:
3068
# there is a master branch.
3070
# XXX: Why the second check? Is it even supported for a branch to
3071
# be bound to itself? -- mbp 20070507
3072
master_branch = self.target.get_master_branch()
3073
master_branch.lock_write()
3075
# push into the master from the source branch.
3076
self.source._basic_push(master_branch, overwrite, stop_revision)
3077
# and push into the target branch from the source. Note that we
3078
# push from the source branch again, because its considered the
3079
# highest bandwidth repository.
3080
result = self.source._basic_push(self.target, overwrite,
3082
result.master_branch = master_branch
3083
result.local_branch = self.target
3087
master_branch.unlock()
3090
result = self.source._basic_push(self.target, overwrite,
3092
# TODO: Why set master_branch and local_branch if there's no
3093
# binding? Maybe cleaner to just leave them unset? -- mbp
3095
result.master_branch = self.target
3096
result.local_branch = None
3101
def is_compatible(self, source, target):
3102
# GenericBranch uses the public API, so always compatible
3106
class InterToBranch5(GenericInterBranch):
3109
def _get_branch_formats_to_test():
3110
return BranchFormat._default_format, BzrBranchFormat5()
3112
def pull(self, overwrite=False, stop_revision=None,
3113
possible_transports=None, run_hooks=True,
3114
_override_hook_target=None, local=False):
3115
"""Pull from source into self, updating my master if any.
3117
:param run_hooks: Private parameter - if false, this branch
3118
is being called because it's the master of the primary branch,
3119
so it should not run its hooks.
3121
bound_location = self.target.get_bound_location()
3122
if local and not bound_location:
3123
raise errors.LocalRequiresBoundBranch()
3124
master_branch = None
3125
if not local and bound_location and self.source.base != bound_location:
3126
# not pulling from master, so we need to update master.
3127
master_branch = self.target.get_master_branch(possible_transports)
3128
master_branch.lock_write()
3131
# pull from source into master.
3132
master_branch.pull(self.source, overwrite, stop_revision,
3134
return super(InterToBranch5, self).pull(overwrite,
3135
stop_revision, _hook_master=master_branch,
3136
run_hooks=run_hooks,
3137
_override_hook_target=_override_hook_target)
3140
master_branch.unlock()
3522
3143
InterBranch.register_optimiser(GenericInterBranch)
3144
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
