716
744
"""Print `file` to stdout."""
717
745
raise NotImplementedError(self.print_file)
747
@deprecated_method(deprecated_in((2, 4, 0)))
719
748
def set_revision_history(self, rev_history):
720
raise NotImplementedError(self.set_revision_history)
749
"""See Branch.set_revision_history."""
750
self._set_revision_history(rev_history)
753
def _set_revision_history(self, rev_history):
754
if len(rev_history) == 0:
755
revid = _mod_revision.NULL_REVISION
757
revid = rev_history[-1]
758
if rev_history != self._lefthand_history(revid):
759
raise errors.NotLefthandHistory(rev_history)
760
self.set_last_revision_info(len(rev_history), revid)
761
self._cache_revision_history(rev_history)
762
for hook in Branch.hooks['set_rh']:
763
hook(self, rev_history)
766
def set_last_revision_info(self, revno, revision_id):
767
"""Set the last revision of this branch.
769
The caller is responsible for checking that the revno is correct
770
for this revision id.
772
It may be possible to set the branch last revision to an id not
773
present in the repository. However, branches can also be
774
configured to check constraints on history, in which case this may not
777
raise NotImplementedError(self.last_revision_info)
780
def generate_revision_history(self, revision_id, last_rev=None,
782
"""See Branch.generate_revision_history"""
783
graph = self.repository.get_graph()
784
known_revision_ids = [
785
self.last_revision_info(),
786
(_mod_revision.NULL_REVISION, 0),
788
if last_rev is not None:
789
if not graph.is_ancestor(last_rev, revision_id):
790
# our previous tip is not merged into stop_revision
791
raise errors.DivergedBranches(self, other_branch)
792
revno = graph.find_distance_to_null(revision_id, known_revision_ids)
793
self.set_last_revision_info(revno, revision_id)
722
795
@needs_write_lock
723
796
def set_parent(self, url):
782
855
old_repository = self.repository
783
856
if len(old_repository._fallback_repositories) != 1:
784
857
raise AssertionError("can't cope with fallback repositories "
785
"of %r" % (self.repository,))
786
# unlock it, including unlocking the fallback
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()
787
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.
788
908
old_repository.lock_read()
790
# Repositories don't offer an interface to remove fallback
791
# repositories today; take the conceptually simpler option and just
792
# reopen it. We reopen it starting from the URL so that we
793
# get a separate connection for RemoteRepositories and can
794
# stream from one of them to the other. This does mean doing
795
# separate SSH connection setup, but unstacking is not a
796
# common operation so it's tolerable.
797
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
798
new_repository = new_bzrdir.find_repository()
799
self.repository = new_repository
800
if self.repository._fallback_repositories:
801
raise AssertionError("didn't expect %r to have "
802
"fallback_repositories"
803
% (self.repository,))
804
# this is not paired with an unlock because it's just restoring
805
# the previous state; the lock's released when set_stacked_on_url
807
self.repository.lock_write()
808
910
# XXX: If you unstack a branch while it has a working tree
809
911
# with a pending merge, the pending-merged revisions will no
810
912
# longer be present. You can (probably) revert and remerge.
812
# XXX: This only fetches up to the tip of the repository; it
813
# doesn't bring across any tags. That's fairly consistent
814
# with how branch works, but perhaps not ideal.
815
self.repository.fetch(old_repository,
816
revision_id=self.last_revision(),
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)
819
922
old_repository.unlock()
917
1026
:return: A tuple (revno, revision_id).
919
1028
if self._last_revision_info_cache is None:
920
self._last_revision_info_cache = self._last_revision_info()
1029
self._last_revision_info_cache = self._read_last_revision_info()
921
1030
return self._last_revision_info_cache
923
def _last_revision_info(self):
924
rh = self.revision_history()
927
return (revno, rh[-1])
929
return (0, _mod_revision.NULL_REVISION)
931
@deprecated_method(deprecated_in((1, 6, 0)))
932
def missing_revisions(self, other, stop_revision=None):
933
"""Return a list of new revisions that would perfectly fit.
935
If self and other have not diverged, return a list of the revisions
936
present in other, but missing from self.
938
self_history = self.revision_history()
939
self_len = len(self_history)
940
other_history = other.revision_history()
941
other_len = len(other_history)
942
common_index = min(self_len, other_len) -1
943
if common_index >= 0 and \
944
self_history[common_index] != other_history[common_index]:
945
raise errors.DivergedBranches(self, other)
947
if stop_revision is None:
948
stop_revision = other_len
950
if stop_revision > other_len:
951
raise errors.NoSuchRevision(self, stop_revision)
952
return other_history[self_len:stop_revision]
955
def update_revisions(self, other, stop_revision=None, overwrite=False,
957
"""Pull in new perfect-fit revisions.
959
:param other: Another Branch to pull from
960
:param stop_revision: Updated until the given revision
961
:param overwrite: Always set the branch pointer, rather than checking
962
to see if it is a proper descendant.
963
:param graph: A Graph object that can be used to query history
964
information. This can be None.
967
return InterBranch.get(other, self).update_revisions(stop_revision,
1032
def _read_last_revision_info(self):
1033
raise NotImplementedError(self._read_last_revision_info)
1035
@deprecated_method(deprecated_in((2, 4, 0)))
970
1036
def import_last_revision_info(self, source_repo, revno, revid):
971
1037
"""Set the last revision info, importing from another repo if necessary.
973
This is used by the bound branch code to upload a revision to
974
the master branch first before updating the tip of the local branch.
976
1039
:param source_repo: Source repository to optionally fetch from
977
1040
:param revno: Revision number of the new tip
978
1041
:param revid: Revision id of the new tip
1562
1666
for hook in hooks:
1565
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1566
lock_type='metadir', set_format=True):
1567
"""Initialize a branch in a bzrdir, with specified files
1569
:param a_bzrdir: The bzrdir to initialize the branch in
1570
:param utf8_files: The files to create as a list of
1571
(filename, content) tuples
1572
:param name: Name of colocated branch to create, if any
1573
:param set_format: If True, set the format with
1574
self.get_format_string. (BzrBranch4 has its format set
1576
:return: a branch in this format
1578
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1579
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1581
'metadir': ('lock', lockdir.LockDir),
1582
'branch4': ('branch-lock', lockable_files.TransportLock),
1584
lock_name, lock_class = lock_map[lock_type]
1585
control_files = lockable_files.LockableFiles(branch_transport,
1586
lock_name, lock_class)
1587
control_files.create_lock()
1589
control_files.lock_write()
1590
except errors.LockContention:
1591
if lock_type != 'branch4':
1597
utf8_files += [('format', self.get_format_string())]
1599
for (filename, content) in utf8_files:
1600
branch_transport.put_bytes(
1602
mode=a_bzrdir._get_file_mode())
1605
control_files.unlock()
1606
branch = self.open(a_bzrdir, name, _found=True)
1607
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
1610
def initialize(self, a_bzrdir, name=None):
1669
def initialize(self, a_bzrdir, name=None, repository=None):
1611
1670
"""Create a branch of this format in a_bzrdir.
1613
1672
:param name: Name of the colocated branch to create.
1704
1800
These are all empty initially, because by default nothing should get
1707
Hooks.__init__(self)
1708
self.create_hook(HookPoint('set_rh',
1803
Hooks.__init__(self, "bzrlib.branch", "Branch.hooks")
1804
self.add_hook('set_rh',
1709
1805
"Invoked whenever the revision history has been set via "
1710
1806
"set_revision_history. The api signature is (branch, "
1711
1807
"revision_history), and the branch will be write-locked. "
1712
1808
"The set_rh hook can be expensive for bzr to trigger, a better "
1713
"hook to use is Branch.post_change_branch_tip.", (0, 15), None))
1714
self.create_hook(HookPoint('open',
1809
"hook to use is Branch.post_change_branch_tip.", (0, 15))
1810
self.add_hook('open',
1715
1811
"Called with the Branch object that has been opened after a "
1716
"branch is opened.", (1, 8), None))
1717
self.create_hook(HookPoint('post_push',
1812
"branch is opened.", (1, 8))
1813
self.add_hook('post_push',
1718
1814
"Called after a push operation completes. post_push is called "
1719
1815
"with a bzrlib.branch.BranchPushResult object and only runs in the "
1720
"bzr client.", (0, 15), None))
1721
self.create_hook(HookPoint('post_pull',
1816
"bzr client.", (0, 15))
1817
self.add_hook('post_pull',
1722
1818
"Called after a pull operation completes. post_pull is called "
1723
1819
"with a bzrlib.branch.PullResult object and only runs in the "
1724
"bzr client.", (0, 15), None))
1725
self.create_hook(HookPoint('pre_commit',
1726
"Called after a commit is calculated but before it is is "
1820
"bzr client.", (0, 15))
1821
self.add_hook('pre_commit',
1822
"Called after a commit is calculated but before it is "
1727
1823
"completed. pre_commit is called with (local, master, old_revno, "
1728
1824
"old_revid, future_revno, future_revid, tree_delta, future_tree"
1729
1825
"). old_revid is NULL_REVISION for the first commit to a branch, "
1731
1827
"basis revision. hooks MUST NOT modify this delta. "
1732
1828
" future_tree is an in-memory tree obtained from "
1733
1829
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1734
"tree.", (0,91), None))
1735
self.create_hook(HookPoint('post_commit',
1831
self.add_hook('post_commit',
1736
1832
"Called in the bzr client after a commit has completed. "
1737
1833
"post_commit is called with (local, master, old_revno, old_revid, "
1738
1834
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1739
"commit to a branch.", (0, 15), None))
1740
self.create_hook(HookPoint('post_uncommit',
1835
"commit to a branch.", (0, 15))
1836
self.add_hook('post_uncommit',
1741
1837
"Called in the bzr client after an uncommit completes. "
1742
1838
"post_uncommit is called with (local, master, old_revno, "
1743
1839
"old_revid, new_revno, new_revid) where local is the local branch "
1744
1840
"or None, master is the target branch, and an empty branch "
1745
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1746
self.create_hook(HookPoint('pre_change_branch_tip',
1841
"receives new_revno of 0, new_revid of None.", (0, 15))
1842
self.add_hook('pre_change_branch_tip',
1747
1843
"Called in bzr client and server before a change to the tip of a "
1748
1844
"branch is made. pre_change_branch_tip is called with a "
1749
1845
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1750
"commit, uncommit will all trigger this hook.", (1, 6), None))
1751
self.create_hook(HookPoint('post_change_branch_tip',
1846
"commit, uncommit will all trigger this hook.", (1, 6))
1847
self.add_hook('post_change_branch_tip',
1752
1848
"Called in bzr client and server after a change to the tip of a "
1753
1849
"branch is made. post_change_branch_tip is called with a "
1754
1850
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1755
"commit, uncommit will all trigger this hook.", (1, 4), None))
1756
self.create_hook(HookPoint('transform_fallback_location',
1851
"commit, uncommit will all trigger this hook.", (1, 4))
1852
self.add_hook('transform_fallback_location',
1757
1853
"Called when a stacked branch is activating its fallback "
1758
1854
"locations. transform_fallback_location is called with (branch, "
1759
1855
"url), and should return a new url. Returning the same url "
1764
1860
"fallback locations have not been activated. When there are "
1765
1861
"multiple hooks installed for transform_fallback_location, "
1766
1862
"all are called with the url returned from the previous hook."
1767
"The order is however undefined.", (1, 9), None))
1768
self.create_hook(HookPoint('automatic_tag_name',
1769
"Called to determine an automatic tag name for a revision."
1863
"The order is however undefined.", (1, 9))
1864
self.add_hook('automatic_tag_name',
1865
"Called to determine an automatic tag name for a revision. "
1770
1866
"automatic_tag_name is called with (branch, revision_id) and "
1771
1867
"should return a tag name or None if no tag name could be "
1772
1868
"determined. The first non-None tag name returned will be used.",
1774
self.create_hook(HookPoint('post_branch_init',
1870
self.add_hook('post_branch_init',
1775
1871
"Called after new branch initialization completes. "
1776
1872
"post_branch_init is called with a "
1777
1873
"bzrlib.branch.BranchInitHookParams. "
1778
1874
"Note that init, branch and checkout (both heavyweight and "
1779
"lightweight) will all trigger this hook.", (2, 2), None))
1780
self.create_hook(HookPoint('post_switch',
1875
"lightweight) will all trigger this hook.", (2, 2))
1876
self.add_hook('post_switch',
1781
1877
"Called after a checkout switches branch. "
1782
1878
"post_switch is called with a "
1783
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1879
"bzrlib.branch.SwitchHookParams.", (2, 2))
2387
2515
"""See Branch.print_file."""
2388
2516
return self.repository.print_file(file, revision_id)
2390
def _write_revision_history(self, history):
2391
"""Factored out of set_revision_history.
2393
This performs the actual writing to disk.
2394
It is intended to be called by BzrBranch5.set_revision_history."""
2395
self._transport.put_bytes(
2396
'revision-history', '\n'.join(history),
2397
mode=self.bzrdir._get_file_mode())
2400
def set_revision_history(self, rev_history):
2401
"""See Branch.set_revision_history."""
2402
if 'evil' in debug.debug_flags:
2403
mutter_callsite(3, "set_revision_history scales with history.")
2404
check_not_reserved_id = _mod_revision.check_not_reserved_id
2405
for rev_id in rev_history:
2406
check_not_reserved_id(rev_id)
2407
if Branch.hooks['post_change_branch_tip']:
2408
# Don't calculate the last_revision_info() if there are no hooks
2410
old_revno, old_revid = self.last_revision_info()
2411
if len(rev_history) == 0:
2412
revid = _mod_revision.NULL_REVISION
2414
revid = rev_history[-1]
2415
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2416
self._write_revision_history(rev_history)
2417
self._clear_cached_state()
2418
self._cache_revision_history(rev_history)
2419
for hook in Branch.hooks['set_rh']:
2420
hook(self, rev_history)
2421
if Branch.hooks['post_change_branch_tip']:
2422
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2424
def _synchronize_history(self, destination, revision_id):
2425
"""Synchronize last revision and revision history between branches.
2427
This version is most efficient when the destination is also a
2428
BzrBranch5, but works for BzrBranch6 as long as the revision
2429
history is the true lefthand parent history, and all of the revisions
2430
are in the destination's repository. If not, set_revision_history
2433
:param destination: The branch to copy the history into
2434
:param revision_id: The revision-id to truncate history at. May
2435
be None to copy complete history.
2437
if not isinstance(destination._format, BzrBranchFormat5):
2438
super(BzrBranch, self)._synchronize_history(
2439
destination, revision_id)
2441
if revision_id == _mod_revision.NULL_REVISION:
2444
new_history = self.revision_history()
2445
if revision_id is not None and new_history != []:
2447
new_history = new_history[:new_history.index(revision_id) + 1]
2449
rev = self.repository.get_revision(revision_id)
2450
new_history = rev.get_history(self.repository)[1:]
2451
destination.set_revision_history(new_history)
2453
2518
@needs_write_lock
2454
2519
def set_last_revision_info(self, revno, revision_id):
2455
"""Set the last revision of this branch.
2457
The caller is responsible for checking that the revno is correct
2458
for this revision id.
2460
It may be possible to set the branch last revision to an id not
2461
present in the repository. However, branches can also be
2462
configured to check constraints on history, in which case this may not
2520
if not revision_id or not isinstance(revision_id, basestring):
2521
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2465
2522
revision_id = _mod_revision.ensure_null(revision_id)
2466
# this old format stores the full history, but this api doesn't
2467
# provide it, so we must generate, and might as well check it's
2469
history = self._lefthand_history(revision_id)
2470
if len(history) != revno:
2471
raise AssertionError('%d != %d' % (len(history), revno))
2472
self.set_revision_history(history)
2474
def _gen_revision_history(self):
2475
history = self._transport.get_bytes('revision-history').split('\n')
2476
if history[-1:] == ['']:
2477
# There shouldn't be a trailing newline, but just in case.
2482
def generate_revision_history(self, revision_id, last_rev=None,
2484
"""Create a new revision history that will finish with revision_id.
2486
:param revision_id: the new tip to use.
2487
:param last_rev: The previous last_revision. If not None, then this
2488
must be a ancestory of revision_id, or DivergedBranches is raised.
2489
:param other_branch: The other branch that DivergedBranches should
2490
raise with respect to.
2492
self.set_revision_history(self._lefthand_history(revision_id,
2493
last_rev, other_branch))
2523
old_revno, old_revid = self.last_revision_info()
2524
if self._get_append_revisions_only():
2525
self._check_history_violation(revision_id)
2526
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2527
self._write_last_revision_info(revno, revision_id)
2528
self._clear_cached_state()
2529
self._last_revision_info_cache = revno, revision_id
2530
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2495
2532
def basis_tree(self):
2496
2533
"""See Branch.basis_tree."""
2645
class BzrBranch8(BzrBranch5):
2654
def _read_last_revision_info(self):
2655
revision_string = self._transport.get_bytes('last-revision')
2656
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2657
revision_id = cache_utf8.get_cached_utf8(revision_id)
2659
return revno, revision_id
2661
def _write_last_revision_info(self, revno, revision_id):
2662
"""Simply write out the revision id, with no checks.
2664
Use set_last_revision_info to perform this safely.
2666
Does not update the revision_history cache.
2668
revision_id = _mod_revision.ensure_null(revision_id)
2669
out_string = '%d %s\n' % (revno, revision_id)
2670
self._transport.put_bytes('last-revision', out_string,
2671
mode=self.bzrdir._get_file_mode())
2674
class FullHistoryBzrBranch(BzrBranch):
2675
"""Bzr branch which contains the full revision history."""
2678
def set_last_revision_info(self, revno, revision_id):
2679
if not revision_id or not isinstance(revision_id, basestring):
2680
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
2681
revision_id = _mod_revision.ensure_null(revision_id)
2682
# this old format stores the full history, but this api doesn't
2683
# provide it, so we must generate, and might as well check it's
2685
history = self._lefthand_history(revision_id)
2686
if len(history) != revno:
2687
raise AssertionError('%d != %d' % (len(history), revno))
2688
self._set_revision_history(history)
2690
def _read_last_revision_info(self):
2691
rh = self.revision_history()
2694
return (revno, rh[-1])
2696
return (0, _mod_revision.NULL_REVISION)
2698
@deprecated_method(deprecated_in((2, 4, 0)))
2700
def set_revision_history(self, rev_history):
2701
"""See Branch.set_revision_history."""
2702
self._set_revision_history(rev_history)
2704
def _set_revision_history(self, rev_history):
2705
if 'evil' in debug.debug_flags:
2706
mutter_callsite(3, "set_revision_history scales with history.")
2707
check_not_reserved_id = _mod_revision.check_not_reserved_id
2708
for rev_id in rev_history:
2709
check_not_reserved_id(rev_id)
2710
if Branch.hooks['post_change_branch_tip']:
2711
# Don't calculate the last_revision_info() if there are no hooks
2713
old_revno, old_revid = self.last_revision_info()
2714
if len(rev_history) == 0:
2715
revid = _mod_revision.NULL_REVISION
2717
revid = rev_history[-1]
2718
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2719
self._write_revision_history(rev_history)
2720
self._clear_cached_state()
2721
self._cache_revision_history(rev_history)
2722
for hook in Branch.hooks['set_rh']:
2723
hook(self, rev_history)
2724
if Branch.hooks['post_change_branch_tip']:
2725
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2727
def _write_revision_history(self, history):
2728
"""Factored out of set_revision_history.
2730
This performs the actual writing to disk.
2731
It is intended to be called by set_revision_history."""
2732
self._transport.put_bytes(
2733
'revision-history', '\n'.join(history),
2734
mode=self.bzrdir._get_file_mode())
2736
def _gen_revision_history(self):
2737
history = self._transport.get_bytes('revision-history').split('\n')
2738
if history[-1:] == ['']:
2739
# There shouldn't be a trailing newline, but just in case.
2743
def _synchronize_history(self, destination, revision_id):
2744
if not isinstance(destination, FullHistoryBzrBranch):
2745
super(BzrBranch, self)._synchronize_history(
2746
destination, revision_id)
2748
if revision_id == _mod_revision.NULL_REVISION:
2751
new_history = self.revision_history()
2752
if revision_id is not None and new_history != []:
2754
new_history = new_history[:new_history.index(revision_id) + 1]
2756
rev = self.repository.get_revision(revision_id)
2757
new_history = rev.get_history(self.repository)[1:]
2758
destination._set_revision_history(new_history)
2761
def generate_revision_history(self, revision_id, last_rev=None,
2763
"""Create a new revision history that will finish with revision_id.
2765
:param revision_id: the new tip to use.
2766
:param last_rev: The previous last_revision. If not None, then this
2767
must be a ancestory of revision_id, or DivergedBranches is raised.
2768
:param other_branch: The other branch that DivergedBranches should
2769
raise with respect to.
2771
self._set_revision_history(self._lefthand_history(revision_id,
2772
last_rev, other_branch))
2775
class BzrBranch5(FullHistoryBzrBranch):
2776
"""A format 5 branch. This supports new features over plain branches.
2778
It has support for a master_branch which is the data for bound branches.
2782
class BzrBranch8(BzrBranch):
2646
2783
"""A branch that stores tree-reference locations."""
2648
2785
def _open_hook(self):
2674
2811
self._last_revision_info_cache = None
2675
2812
self._reference_info = None
2677
def _last_revision_info(self):
2678
revision_string = self._transport.get_bytes('last-revision')
2679
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2680
revision_id = cache_utf8.get_cached_utf8(revision_id)
2682
return revno, revision_id
2684
def _write_last_revision_info(self, revno, revision_id):
2685
"""Simply write out the revision id, with no checks.
2687
Use set_last_revision_info to perform this safely.
2689
Does not update the revision_history cache.
2690
Intended to be called by set_last_revision_info and
2691
_write_revision_history.
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
def set_last_revision_info(self, revno, revision_id):
2700
revision_id = _mod_revision.ensure_null(revision_id)
2701
old_revno, old_revid = self.last_revision_info()
2702
if self._get_append_revisions_only():
2703
self._check_history_violation(revision_id)
2704
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2705
self._write_last_revision_info(revno, revision_id)
2706
self._clear_cached_state()
2707
self._last_revision_info_cache = revno, revision_id
2708
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2710
def _synchronize_history(self, destination, revision_id):
2711
"""Synchronize last revision and revision history between branches.
2713
:see: Branch._synchronize_history
2715
# XXX: The base Branch has a fast implementation of this method based
2716
# on set_last_revision_info, but BzrBranch/BzrBranch5 have a slower one
2717
# that uses set_revision_history. This class inherits from BzrBranch5,
2718
# but wants the fast implementation, so it calls
2719
# Branch._synchronize_history directly.
2720
Branch._synchronize_history(self, destination, revision_id)
2722
2814
def _check_history_violation(self, revision_id):
2723
last_revision = _mod_revision.ensure_null(self.last_revision())
2815
current_revid = self.last_revision()
2816
last_revision = _mod_revision.ensure_null(current_revid)
2724
2817
if _mod_revision.is_null(last_revision):
2726
if last_revision not in self._lefthand_history(revision_id):
2727
raise errors.AppendRevisionsOnlyViolation(self.user_url)
2819
graph = self.repository.get_graph()
2820
for lh_ancestor in graph.iter_lefthand_ancestry(revision_id):
2821
if lh_ancestor == current_revid:
2823
raise errors.AppendRevisionsOnlyViolation(self.user_url)
2729
2825
def _gen_revision_history(self):
2730
2826
"""Generate the revision history from last revision
3182
3260
raise NotImplementedError(self.push)
3263
def copy_content_into(self, revision_id=None):
3264
"""Copy the content of source into target
3266
revision_id: if not None, the revision history in the new branch will
3267
be truncated to end with revision_id.
3269
raise NotImplementedError(self.copy_content_into)
3272
def fetch(self, stop_revision=None):
3275
:param stop_revision: Last revision to fetch
3277
raise NotImplementedError(self.fetch)
3185
3280
class GenericInterBranch(InterBranch):
3186
"""InterBranch implementation that uses public Branch functions.
3190
def _get_branch_formats_to_test():
3191
return BranchFormat._default_format, BranchFormat._default_format
3193
def update_revisions(self, stop_revision=None, overwrite=False,
3195
"""See InterBranch.update_revisions()."""
3281
"""InterBranch implementation that uses public Branch functions."""
3284
def is_compatible(klass, source, target):
3285
# GenericBranch uses the public API, so always compatible
3289
def _get_branch_formats_to_test(klass):
3290
return [(format_registry.get_default(), format_registry.get_default())]
3293
def unwrap_format(klass, format):
3294
if isinstance(format, remote.RemoteBranchFormat):
3295
format._ensure_real()
3296
return format._custom_format
3300
def copy_content_into(self, revision_id=None):
3301
"""Copy the content of source into target
3303
revision_id: if not None, the revision history in the new branch will
3304
be truncated to end with revision_id.
3306
self.source.update_references(self.target)
3307
self.source._synchronize_history(self.target, revision_id)
3309
parent = self.source.get_parent()
3310
except errors.InaccessibleParent, e:
3311
mutter('parent was not accessible to copy: %s', e)
3314
self.target.set_parent(parent)
3315
if self.source._push_should_merge_tags():
3316
self.source.tags.merge_to(self.target.tags)
3319
def fetch(self, stop_revision=None):
3320
if self.target.base == self.source.base:
3196
3322
self.source.lock_read()
3198
other_revno, other_last_revision = self.source.last_revision_info()
3199
stop_revno = None # unknown
3200
if stop_revision is None:
3201
stop_revision = other_last_revision
3202
if _mod_revision.is_null(stop_revision):
3203
# if there are no commits, we're done.
3205
stop_revno = other_revno
3207
# what's the current last revision, before we fetch [and change it
3209
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3210
# we fetch here so that we don't process data twice in the common
3211
# case of having something to pull, and so that the check for
3212
# already merged can operate on the just fetched graph, which will
3213
# be cached in memory.
3214
self.target.fetch(self.source, stop_revision)
3215
# Check to see if one is an ancestor of the other
3218
graph = self.target.repository.get_graph()
3219
if self.target._check_if_descendant_or_diverged(
3220
stop_revision, last_rev, graph, self.source):
3221
# stop_revision is a descendant of last_rev, but we aren't
3222
# overwriting, so we're done.
3224
if stop_revno is None:
3226
graph = self.target.repository.get_graph()
3227
this_revno, this_last_revision = \
3228
self.target.last_revision_info()
3229
stop_revno = graph.find_distance_to_null(stop_revision,
3230
[(other_last_revision, other_revno),
3231
(this_last_revision, this_revno)])
3232
self.target.set_last_revision_info(stop_revno, stop_revision)
3324
fetch_spec_factory = fetch.FetchSpecFactory()
3325
fetch_spec_factory.source_branch = self.source
3326
fetch_spec_factory.source_branch_stop_revision_id = stop_revision
3327
fetch_spec_factory.source_repo = self.source.repository
3328
fetch_spec_factory.target_repo = self.target.repository
3329
fetch_spec_factory.target_repo_kind = fetch.TargetRepoKinds.PREEXISTING
3330
fetch_spec = fetch_spec_factory.make_fetch_spec()
3331
return self.target.repository.fetch(self.source.repository,
3332
fetch_spec=fetch_spec)
3234
3334
self.source.unlock()
3337
def _update_revisions(self, stop_revision=None, overwrite=False,
3339
other_revno, other_last_revision = self.source.last_revision_info()
3340
stop_revno = None # unknown
3341
if stop_revision is None:
3342
stop_revision = other_last_revision
3343
if _mod_revision.is_null(stop_revision):
3344
# if there are no commits, we're done.
3346
stop_revno = other_revno
3348
# what's the current last revision, before we fetch [and change it
3350
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3351
# we fetch here so that we don't process data twice in the common
3352
# case of having something to pull, and so that the check for
3353
# already merged can operate on the just fetched graph, which will
3354
# be cached in memory.
3355
self.fetch(stop_revision=stop_revision)
3356
# Check to see if one is an ancestor of the other
3359
graph = self.target.repository.get_graph()
3360
if self.target._check_if_descendant_or_diverged(
3361
stop_revision, last_rev, graph, self.source):
3362
# stop_revision is a descendant of last_rev, but we aren't
3363
# overwriting, so we're done.
3365
if stop_revno is None:
3367
graph = self.target.repository.get_graph()
3368
this_revno, this_last_revision = \
3369
self.target.last_revision_info()
3370
stop_revno = graph.find_distance_to_null(stop_revision,
3371
[(other_last_revision, other_revno),
3372
(this_last_revision, this_revno)])
3373
self.target.set_last_revision_info(stop_revno, stop_revision)
3236
3376
def pull(self, overwrite=False, stop_revision=None,
3237
possible_transports=None, _hook_master=None, run_hooks=True,
3377
possible_transports=None, run_hooks=True,
3238
3378
_override_hook_target=None, local=False):
3379
"""Pull from source into self, updating my master if any.
3241
:param _hook_master: Private parameter - set the branch to
3242
be supplied as the master to pull hooks.
3243
3381
:param run_hooks: Private parameter - if false, this branch
3244
3382
is being called because it's the master of the primary branch,
3245
3383
so it should not run its hooks.
3246
:param _override_hook_target: Private parameter - set the branch to be
3247
supplied as the target_branch to pull hooks.
3248
:param local: Only update the local branch, and not the bound branch.
3250
# This type of branch can't be bound.
3385
bound_location = self.target.get_bound_location()
3386
if local and not bound_location:
3252
3387
raise errors.LocalRequiresBoundBranch()
3253
result = PullResult()
3254
result.source_branch = self.source
3255
if _override_hook_target is None:
3256
result.target_branch = self.target
3258
result.target_branch = _override_hook_target
3259
self.source.lock_read()
3388
master_branch = None
3389
source_is_master = (self.source.user_url == bound_location)
3390
if not local and bound_location and not source_is_master:
3391
# not pulling from master, so we need to update master.
3392
master_branch = self.target.get_master_branch(possible_transports)
3393
master_branch.lock_write()
3261
# We assume that during 'pull' the target repository is closer than
3263
self.source.update_references(self.target)
3264
graph = self.target.repository.get_graph(self.source.repository)
3265
# TODO: Branch formats should have a flag that indicates
3266
# that revno's are expensive, and pull() should honor that flag.
3268
result.old_revno, result.old_revid = \
3269
self.target.last_revision_info()
3270
self.target.update_revisions(self.source, stop_revision,
3271
overwrite=overwrite, graph=graph)
3272
# TODO: The old revid should be specified when merging tags,
3273
# so a tags implementation that versions tags can only
3274
# pull in the most recent changes. -- JRV20090506
3275
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3277
result.new_revno, result.new_revid = self.target.last_revision_info()
3279
result.master_branch = _hook_master
3280
result.local_branch = result.target_branch
3282
result.master_branch = result.target_branch
3283
result.local_branch = None
3285
for hook in Branch.hooks['post_pull']:
3396
# pull from source into master.
3397
master_branch.pull(self.source, overwrite, stop_revision,
3399
return self._pull(overwrite,
3400
stop_revision, _hook_master=master_branch,
3401
run_hooks=run_hooks,
3402
_override_hook_target=_override_hook_target,
3403
merge_tags_to_master=not source_is_master)
3288
self.source.unlock()
3406
master_branch.unlock()
3291
3408
def push(self, overwrite=False, stop_revision=None,
3292
3409
_override_hook_source_branch=None):
3358
def is_compatible(self, source, target):
3359
# GenericBranch uses the public API, so always compatible
3363
class InterToBranch5(GenericInterBranch):
3366
def _get_branch_formats_to_test():
3367
return BranchFormat._default_format, BzrBranchFormat5()
3369
def pull(self, overwrite=False, stop_revision=None,
3370
possible_transports=None, run_hooks=True,
3371
_override_hook_target=None, local=False):
3372
"""Pull from source into self, updating my master if any.
3495
def _pull(self, overwrite=False, stop_revision=None,
3496
possible_transports=None, _hook_master=None, run_hooks=True,
3497
_override_hook_target=None, local=False,
3498
merge_tags_to_master=True):
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.
3374
3506
:param run_hooks: Private parameter - if false, this branch
3375
3507
is being called because it's the master of the primary branch,
3376
3508
so it should not run its hooks.
3509
is being called because it's the master of the primary branch,
3510
so it should not run its hooks.
3511
:param _override_hook_target: Private parameter - set the branch to be
3512
supplied as the target_branch to pull hooks.
3513
:param local: Only update the local branch, and not the bound branch.
3378
bound_location = self.target.get_bound_location()
3379
if local and not bound_location:
3515
# This type of branch can't be bound.
3380
3517
raise errors.LocalRequiresBoundBranch()
3381
master_branch = None
3382
if not local and bound_location and self.source.user_url != bound_location:
3383
# not pulling from master, so we need to update master.
3384
master_branch = self.target.get_master_branch(possible_transports)
3385
master_branch.lock_write()
3518
result = PullResult()
3519
result.source_branch = self.source
3520
if _override_hook_target is None:
3521
result.target_branch = self.target
3523
result.target_branch = _override_hook_target
3524
self.source.lock_read()
3388
# pull from source into master.
3389
master_branch.pull(self.source, overwrite, stop_revision,
3391
return super(InterToBranch5, self).pull(overwrite,
3392
stop_revision, _hook_master=master_branch,
3393
run_hooks=run_hooks,
3394
_override_hook_target=_override_hook_target)
3526
# We assume that during 'pull' the target repository is closer than
3528
self.source.update_references(self.target)
3529
graph = self.target.repository.get_graph(self.source.repository)
3530
# TODO: Branch formats should have a flag that indicates
3531
# that revno's are expensive, and pull() should honor that flag.
3533
result.old_revno, result.old_revid = \
3534
self.target.last_revision_info()
3535
self._update_revisions(stop_revision, overwrite=overwrite,
3537
# TODO: The old revid should be specified when merging tags,
3538
# so a tags implementation that versions tags can only
3539
# pull in the most recent changes. -- JRV20090506
3540
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3541
overwrite, ignore_master=not merge_tags_to_master)
3542
result.new_revno, result.new_revid = self.target.last_revision_info()
3544
result.master_branch = _hook_master
3545
result.local_branch = result.target_branch
3547
result.master_branch = result.target_branch
3548
result.local_branch = None
3550
for hook in Branch.hooks['post_pull']:
3397
master_branch.unlock()
3553
self.source.unlock()
3400
3557
InterBranch.register_optimiser(GenericInterBranch)
3401
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
