749
805
if not self._format.supports_stacking():
750
raise errors.UnstackableBranchFormat(self._format, self.user_url)
751
# XXX: Changing from one fallback repository to another does not check
752
# that all the data you need is present in the new fallback.
753
# Possibly it should.
754
self._check_stackable_repo()
757
old_url = self.get_stacked_on_url()
758
except (errors.NotStacked, errors.UnstackableBranchFormat,
759
errors.UnstackableRepositoryFormat):
763
self._activate_fallback_location(url)
764
# write this out after the repository is stacked to avoid setting a
765
# stacked config that doesn't work.
766
self._set_config_location('stacked_on_location', url)
806
raise UnstackableBranchFormat(self._format, self.user_url)
807
with self.lock_write():
808
# XXX: Changing from one fallback repository to another does not
809
# check that all the data you need is present in the new fallback.
810
# Possibly it should.
811
self._check_stackable_repo()
814
self.get_stacked_on_url()
815
except (errors.NotStacked, UnstackableBranchFormat,
816
errors.UnstackableRepositoryFormat):
820
self._activate_fallback_location(
821
url, possible_transports=[self.controldir.root_transport])
822
# write this out after the repository is stacked to avoid setting a
823
# stacked config that doesn't work.
824
self._set_config_location('stacked_on_location', url)
768
826
def _unstack(self):
769
827
"""Change a branch to be unstacked, copying data as needed.
771
829
Don't call this directly, use set_stacked_on_url(None).
773
pb = ui.ui_factory.nested_progress_bar()
775
pb.update("Unstacking")
831
with ui.ui_factory.nested_progress_bar() as pb:
832
pb.update(gettext("Unstacking"))
776
833
# The basic approach here is to fetch the tip of the branch,
777
834
# including all available ghosts, from the existing stacked
778
# repository into a new repository object without the fallbacks.
835
# repository into a new repository object without the fallbacks.
780
837
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
781
838
# correct for CHKMap repostiories
782
839
old_repository = self.repository
783
840
if len(old_repository._fallback_repositories) != 1:
784
raise AssertionError("can't cope with fallback repositories "
785
"of %r" % (self.repository,))
786
# unlock it, including unlocking the fallback
841
raise AssertionError(
842
"can't cope with fallback repositories "
843
"of %r (fallbacks: %r)" % (
844
old_repository, old_repository._fallback_repositories))
845
# Open the new repository object.
846
# Repositories don't offer an interface to remove fallback
847
# repositories today; take the conceptually simpler option and just
848
# reopen it. We reopen it starting from the URL so that we
849
# get a separate connection for RemoteRepositories and can
850
# stream from one of them to the other. This does mean doing
851
# separate SSH connection setup, but unstacking is not a
852
# common operation so it's tolerable.
853
new_bzrdir = controldir.ControlDir.open(
854
self.controldir.root_transport.base)
855
new_repository = new_bzrdir.find_repository()
856
if new_repository._fallback_repositories:
857
raise AssertionError(
858
"didn't expect %r to have fallback_repositories"
859
% (self.repository,))
860
# Replace self.repository with the new repository.
861
# Do our best to transfer the lock state (i.e. lock-tokens and
862
# lock count) of self.repository to the new repository.
863
lock_token = old_repository.lock_write().repository_token
864
self.repository = new_repository
865
if isinstance(self, remote.RemoteBranch):
866
# Remote branches can have a second reference to the old
867
# repository that need to be replaced.
868
if self._real_branch is not None:
869
self._real_branch.repository = new_repository
870
self.repository.lock_write(token=lock_token)
871
if lock_token is not None:
872
old_repository.leave_lock_in_place()
787
873
old_repository.unlock()
788
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
874
if lock_token is not None:
875
# XXX: self.repository.leave_lock_in_place() before this
876
# function will not be preserved. Fortunately that doesn't
877
# affect the current default format (2a), and would be a
878
# corner-case anyway.
879
# - Andrew Bennetts, 2010/06/30
880
self.repository.dont_leave_lock_in_place()
884
old_repository.unlock()
885
except errors.LockNotHeld:
888
if old_lock_count == 0:
889
raise AssertionError(
890
'old_repository should have been locked at least once.')
891
for i in range(old_lock_count - 1):
807
892
self.repository.lock_write()
893
# Fetch from the old repository into the new.
894
with old_repository.lock_read():
808
895
# XXX: If you unstack a branch while it has a working tree
809
896
# with a pending merge, the pending-merged revisions will no
810
897
# 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(),
819
old_repository.unlock()
823
def _set_tags_bytes(self, bytes):
824
"""Mirror method for _get_tags_bytes.
826
:seealso: Branch._get_tags_bytes.
828
return _run_with_write_locked_target(self, self._transport.put_bytes,
899
tags_to_fetch = set(self.tags.get_reverse_tag_dict())
900
except errors.TagsNotSupported:
901
tags_to_fetch = set()
902
fetch_spec = vf_search.NotInOtherForRevs(
903
self.repository, old_repository,
904
required_ids=[self.last_revision()],
905
if_present_ids=tags_to_fetch, find_ghosts=True).execute()
906
self.repository.fetch(old_repository, fetch_spec=fetch_spec)
831
908
def _cache_revision_history(self, rev_history):
832
909
"""Set the cached revision history to rev_history.
910
982
"""Return last revision id, or NULL_REVISION."""
911
983
return self.last_revision_info()[1]
914
985
def last_revision_info(self):
915
986
"""Return information about the last revision.
917
988
:return: A tuple (revno, revision_id).
919
if self._last_revision_info_cache is None:
920
self._last_revision_info_cache = self._last_revision_info()
921
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,
970
def import_last_revision_info(self, source_repo, revno, revid):
990
with self.lock_read():
991
if self._last_revision_info_cache is None:
992
self._last_revision_info_cache = (
993
self._read_last_revision_info())
994
return self._last_revision_info_cache
996
def _read_last_revision_info(self):
997
raise NotImplementedError(self._read_last_revision_info)
999
def import_last_revision_info_and_tags(self, source, revno, revid,
971
1001
"""Set the last revision info, importing from another repo if necessary.
973
1003
This is used by the bound branch code to upload a revision to
974
1004
the master branch first before updating the tip of the local branch.
1005
Revisions referenced by source's tags are also transferred.
976
:param source_repo: Source repository to optionally fetch from
1007
:param source: Source branch to optionally fetch from
977
1008
:param revno: Revision number of the new tip
978
1009
:param revid: Revision id of the new tip
1010
:param lossy: Whether to discard metadata that can not be
1011
natively represented
1012
:return: Tuple with the new revision number and revision id
1013
(should only be different from the arguments when lossy=True)
980
if not self.repository.has_same_location(source_repo):
981
self.repository.fetch(source_repo, revision_id=revid)
1015
if not self.repository.has_same_location(source.repository):
1016
self.fetch(source, revid)
982
1017
self.set_last_revision_info(revno, revid)
1018
return (revno, revid)
984
1020
def revision_id_to_revno(self, revision_id):
985
1021
"""Given a revision id, return its revno"""
986
1022
if _mod_revision.is_null(revision_id):
988
history = self.revision_history()
1024
history = self._revision_history()
990
1026
return history.index(revision_id) + 1
991
1027
except ValueError:
992
1028
raise errors.NoSuchRevision(self, revision_id)
995
1030
def get_rev_id(self, revno, history=None):
996
1031
"""Find the revision id of the specified revno."""
998
return _mod_revision.NULL_REVISION
999
last_revno, last_revid = self.last_revision_info()
1000
if revno == last_revno:
1002
if revno <= 0 or revno > last_revno:
1003
raise errors.NoSuchRevision(self, revno)
1004
distance_from_last = last_revno - revno
1005
if len(self._partial_revision_history_cache) <= distance_from_last:
1006
self._extend_partial_history(distance_from_last)
1007
return self._partial_revision_history_cache[distance_from_last]
1032
with self.lock_read():
1034
return _mod_revision.NULL_REVISION
1035
last_revno, last_revid = self.last_revision_info()
1036
if revno == last_revno:
1038
if revno <= 0 or revno > last_revno:
1039
raise errors.NoSuchRevision(self, revno)
1040
distance_from_last = last_revno - revno
1041
if len(self._partial_revision_history_cache) <= distance_from_last:
1042
self._extend_partial_history(distance_from_last)
1043
return self._partial_revision_history_cache[distance_from_last]
1010
1045
def pull(self, source, overwrite=False, stop_revision=None,
1011
1046
possible_transports=None, *args, **kwargs):
1012
1047
"""Mirror source into this branch.
1490
1529
object will be created every time regardless.
1493
_default_format = None
1494
"""The default format used for new branches."""
1497
"""The known formats."""
1499
can_set_append_revisions_only = True
1501
1532
def __eq__(self, other):
1502
1533
return self.__class__ is other.__class__
1504
1535
def __ne__(self, other):
1505
1536
return not (self == other)
1508
def find_format(klass, a_bzrdir, name=None):
1509
"""Return the format for the branch object in a_bzrdir."""
1511
transport = a_bzrdir.get_branch_transport(None, name=name)
1512
format_string = transport.get_bytes("format")
1513
return klass._formats[format_string]
1514
except errors.NoSuchFile:
1515
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1517
raise errors.UnknownFormatError(format=format_string, kind='branch')
1520
def get_default_format(klass):
1521
"""Return the current default format."""
1522
return klass._default_format
1524
def get_reference(self, a_bzrdir):
1525
"""Get the target reference of the branch in a_bzrdir.
1538
def get_reference(self, controldir, name=None):
1539
"""Get the target reference of the branch in controldir.
1527
1541
format probing must have been completed before calling
1528
1542
this method - it is assumed that the format of the branch
1529
in a_bzrdir is correct.
1543
in controldir is correct.
1531
:param a_bzrdir: The bzrdir to get the branch data from.
1545
:param controldir: The controldir to get the branch data from.
1546
:param name: Name of the colocated branch to fetch
1532
1547
:return: None if the branch is not a reference branch.
1537
def set_reference(self, a_bzrdir, to_branch):
1538
"""Set the target reference of the branch in a_bzrdir.
1552
def set_reference(self, controldir, name, to_branch):
1553
"""Set the target reference of the branch in controldir.
1540
1555
format probing must have been completed before calling
1541
1556
this method - it is assumed that the format of the branch
1542
in a_bzrdir is correct.
1557
in controldir is correct.
1544
:param a_bzrdir: The bzrdir to set the branch reference for.
1559
:param controldir: The controldir to set the branch reference for.
1560
:param name: Name of colocated branch to set, None for default
1545
1561
:param to_branch: branch that the checkout is to reference
1547
1563
raise NotImplementedError(self.set_reference)
1549
def get_format_string(self):
1550
"""Return the ASCII format string that identifies this format."""
1551
raise NotImplementedError(self.get_format_string)
1553
1565
def get_format_description(self):
1554
1566
"""Return the short format description for this format."""
1555
1567
raise NotImplementedError(self.get_format_description)
1557
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1569
def _run_post_branch_init_hooks(self, controldir, name, branch):
1558
1570
hooks = Branch.hooks['post_branch_init']
1561
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1573
params = BranchInitHookParams(self, controldir, name, branch)
1562
1574
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):
1611
"""Create a branch of this format in a_bzrdir.
1577
def initialize(self, controldir, name=None, repository=None,
1578
append_revisions_only=None):
1579
"""Create a branch of this format in controldir.
1613
1581
:param name: Name of the colocated branch to create.
1615
1583
raise NotImplementedError(self.initialize)
1899
1868
return self.__dict__ == other.__dict__
1901
1870
def __repr__(self):
1902
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1903
self.control_dir, self.to_branch,
1871
return "<%s for %s to (%s, %s)>" % (
1872
self.__class__.__name__, self.control_dir, self.to_branch,
1904
1873
self.revision_id)
1907
class BzrBranchFormat4(BranchFormat):
1908
"""Bzr branch format 4.
1911
- a revision-history file.
1912
- a branch-lock lock file [ to be shared with the bzrdir ]
1915
def get_format_description(self):
1916
"""See BranchFormat.get_format_description()."""
1917
return "Branch format 4"
1919
def initialize(self, a_bzrdir, name=None):
1920
"""Create a branch of this format in a_bzrdir."""
1921
utf8_files = [('revision-history', ''),
1922
('branch-name', ''),
1924
return self._initialize_helper(a_bzrdir, utf8_files, name=name,
1925
lock_type='branch4', set_format=False)
1928
super(BzrBranchFormat4, self).__init__()
1929
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1931
def network_name(self):
1932
"""The network name for this format is the control dirs disk label."""
1933
return self._matchingbzrdir.get_format_string()
1935
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1936
"""See BranchFormat.open()."""
1938
# we are being called directly and must probe.
1939
raise NotImplementedError
1940
return BzrBranch(_format=self,
1941
_control_files=a_bzrdir._control_files,
1944
_repository=a_bzrdir.open_repository())
1947
return "Bazaar-NG branch format 4"
1950
class BranchFormatMetadir(BranchFormat):
1951
"""Common logic for meta-dir based branch formats."""
1953
def _branch_class(self):
1954
"""What class to instantiate on open calls."""
1955
raise NotImplementedError(self._branch_class)
1957
def network_name(self):
1958
"""A simple byte string uniquely identifying this format for RPC calls.
1960
Metadir branch formats use their format string.
1962
return self.get_format_string()
1964
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1965
"""See BranchFormat.open()."""
1967
format = BranchFormat.find_format(a_bzrdir, name=name)
1968
if format.__class__ != self.__class__:
1969
raise AssertionError("wrong format %r found for %r" %
1971
transport = a_bzrdir.get_branch_transport(None, name=name)
1973
control_files = lockable_files.LockableFiles(transport, 'lock',
1975
return self._branch_class()(_format=self,
1976
_control_files=control_files,
1979
_repository=a_bzrdir.find_repository(),
1980
ignore_fallbacks=ignore_fallbacks)
1981
except errors.NoSuchFile:
1982
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1985
super(BranchFormatMetadir, self).__init__()
1986
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1987
self._matchingbzrdir.set_branch_format(self)
1989
def supports_tags(self):
1993
class BzrBranchFormat5(BranchFormatMetadir):
1994
"""Bzr branch format 5.
1997
- a revision-history file.
1999
- a lock dir guarding the branch itself
2000
- all of this stored in a branch/ subdirectory
2001
- works with shared repositories.
2003
This format is new in bzr 0.8.
2006
def _branch_class(self):
2009
def get_format_string(self):
2010
"""See BranchFormat.get_format_string()."""
2011
return "Bazaar-NG branch format 5\n"
2013
def get_format_description(self):
2014
"""See BranchFormat.get_format_description()."""
2015
return "Branch format 5"
2017
def initialize(self, a_bzrdir, name=None):
2018
"""Create a branch of this format in a_bzrdir."""
2019
utf8_files = [('revision-history', ''),
2020
('branch-name', ''),
2022
return self._initialize_helper(a_bzrdir, utf8_files, name)
2024
def supports_tags(self):
2028
class BzrBranchFormat6(BranchFormatMetadir):
2029
"""Branch format with last-revision and tags.
2031
Unlike previous formats, this has no explicit revision history. Instead,
2032
this just stores the last-revision, and the left-hand history leading
2033
up to there is the history.
2035
This format was introduced in bzr 0.15
2036
and became the default in 0.91.
2039
def _branch_class(self):
2042
def get_format_string(self):
2043
"""See BranchFormat.get_format_string()."""
2044
return "Bazaar Branch Format 6 (bzr 0.15)\n"
2046
def get_format_description(self):
2047
"""See BranchFormat.get_format_description()."""
2048
return "Branch format 6"
2050
def initialize(self, a_bzrdir, name=None):
2051
"""Create a branch of this format in a_bzrdir."""
2052
utf8_files = [('last-revision', '0 null:\n'),
2053
('branch.conf', ''),
2056
return self._initialize_helper(a_bzrdir, utf8_files, name)
2058
def make_tags(self, branch):
2059
"""See bzrlib.branch.BranchFormat.make_tags()."""
2060
return BasicTags(branch)
2062
def supports_set_append_revisions_only(self):
2066
class BzrBranchFormat8(BranchFormatMetadir):
2067
"""Metadir format supporting storing locations of subtree branches."""
2069
def _branch_class(self):
2072
def get_format_string(self):
2073
"""See BranchFormat.get_format_string()."""
2074
return "Bazaar Branch Format 8 (needs bzr 1.15)\n"
2076
def get_format_description(self):
2077
"""See BranchFormat.get_format_description()."""
2078
return "Branch format 8"
2080
def initialize(self, a_bzrdir, name=None):
2081
"""Create a branch of this format in a_bzrdir."""
2082
utf8_files = [('last-revision', '0 null:\n'),
2083
('branch.conf', ''),
2087
return self._initialize_helper(a_bzrdir, utf8_files, name)
2090
super(BzrBranchFormat8, self).__init__()
2091
self._matchingbzrdir.repository_format = \
2092
RepositoryFormatKnitPack5RichRoot()
2094
def make_tags(self, branch):
2095
"""See bzrlib.branch.BranchFormat.make_tags()."""
2096
return BasicTags(branch)
2098
def supports_set_append_revisions_only(self):
2101
def supports_stacking(self):
2104
supports_reference_locations = True
2107
class BzrBranchFormat7(BzrBranchFormat8):
2108
"""Branch format with last-revision, tags, and a stacked location pointer.
2110
The stacked location pointer is passed down to the repository and requires
2111
a repository format with supports_external_lookups = True.
2113
This format was introduced in bzr 1.6.
2116
def initialize(self, a_bzrdir, name=None):
2117
"""Create a branch of this format in a_bzrdir."""
2118
utf8_files = [('last-revision', '0 null:\n'),
2119
('branch.conf', ''),
2122
return self._initialize_helper(a_bzrdir, utf8_files, name)
2124
def _branch_class(self):
2127
def get_format_string(self):
2128
"""See BranchFormat.get_format_string()."""
2129
return "Bazaar Branch Format 7 (needs bzr 1.6)\n"
2131
def get_format_description(self):
2132
"""See BranchFormat.get_format_description()."""
2133
return "Branch format 7"
2135
def supports_set_append_revisions_only(self):
2138
supports_reference_locations = False
2141
class BranchReferenceFormat(BranchFormat):
2142
"""Bzr branch reference format.
2144
Branch references are used in implementing checkouts, they
2145
act as an alias to the real branch which is at some other url.
2152
def get_format_string(self):
2153
"""See BranchFormat.get_format_string()."""
2154
return "Bazaar-NG Branch Reference Format 1\n"
2156
def get_format_description(self):
2157
"""See BranchFormat.get_format_description()."""
2158
return "Checkout reference format 1"
2160
def get_reference(self, a_bzrdir):
2161
"""See BranchFormat.get_reference()."""
2162
transport = a_bzrdir.get_branch_transport(None)
2163
return transport.get_bytes('location')
2165
def set_reference(self, a_bzrdir, to_branch):
2166
"""See BranchFormat.set_reference()."""
2167
transport = a_bzrdir.get_branch_transport(None)
2168
location = transport.put_bytes('location', to_branch.base)
2170
def initialize(self, a_bzrdir, name=None, target_branch=None):
2171
"""Create a branch of this format in a_bzrdir."""
2172
if target_branch is None:
2173
# this format does not implement branch itself, thus the implicit
2174
# creation contract must see it as uninitializable
2175
raise errors.UninitializableFormat(self)
2176
mutter('creating branch reference in %s', a_bzrdir.user_url)
2177
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
2178
branch_transport.put_bytes('location',
2179
target_branch.bzrdir.user_url)
2180
branch_transport.put_bytes('format', self.get_format_string())
2182
a_bzrdir, name, _found=True,
2183
possible_transports=[target_branch.bzrdir.root_transport])
2184
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2188
super(BranchReferenceFormat, self).__init__()
2189
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
2190
self._matchingbzrdir.set_branch_format(self)
2192
def _make_reference_clone_function(format, a_branch):
2193
"""Create a clone() routine for a branch dynamically."""
2194
def clone(to_bzrdir, revision_id=None,
2195
repository_policy=None):
2196
"""See Branch.clone()."""
2197
return format.initialize(to_bzrdir, target_branch=a_branch)
2198
# cannot obey revision_id limits when cloning a reference ...
2199
# FIXME RBC 20060210 either nuke revision_id for clone, or
2200
# emit some sort of warning/error to the caller ?!
2203
def open(self, a_bzrdir, name=None, _found=False, location=None,
2204
possible_transports=None, ignore_fallbacks=False):
2205
"""Return the branch that the branch reference in a_bzrdir points at.
2207
:param a_bzrdir: A BzrDir that contains a branch.
2208
:param name: Name of colocated branch to open, if any
2209
:param _found: a private parameter, do not use it. It is used to
2210
indicate if format probing has already be done.
2211
:param ignore_fallbacks: when set, no fallback branches will be opened
2212
(if there are any). Default is to open fallbacks.
2213
:param location: The location of the referenced branch. If
2214
unspecified, this will be determined from the branch reference in
2216
:param possible_transports: An optional reusable transports list.
2219
format = BranchFormat.find_format(a_bzrdir, name=name)
2220
if format.__class__ != self.__class__:
2221
raise AssertionError("wrong format %r found for %r" %
2223
if location is None:
2224
location = self.get_reference(a_bzrdir)
2225
real_bzrdir = bzrdir.BzrDir.open(
2226
location, possible_transports=possible_transports)
2227
result = real_bzrdir.open_branch(name=name,
2228
ignore_fallbacks=ignore_fallbacks)
2229
# this changes the behaviour of result.clone to create a new reference
2230
# rather than a copy of the content of the branch.
2231
# I did not use a proxy object because that needs much more extensive
2232
# testing, and we are only changing one behaviour at the moment.
2233
# If we decide to alter more behaviours - i.e. the implicit nickname
2234
# then this should be refactored to introduce a tested proxy branch
2235
# and a subclass of that for use in overriding clone() and ....
2237
result.clone = self._make_reference_clone_function(result)
1876
class BranchFormatRegistry(controldir.ControlComponentFormatRegistry):
1877
"""Branch format registry."""
1879
def __init__(self, other_registry=None):
1880
super(BranchFormatRegistry, self).__init__(other_registry)
1881
self._default_format = None
1882
self._default_format_key = None
1884
def get_default(self):
1885
"""Return the current default format."""
1886
if (self._default_format_key is not None
1887
and self._default_format is None):
1888
self._default_format = self.get(self._default_format_key)
1889
return self._default_format
1891
def set_default(self, format):
1892
"""Set the default format."""
1893
self._default_format = format
1894
self._default_format_key = None
1896
def set_default_key(self, format_string):
1897
"""Set the default format by its format string."""
1898
self._default_format_key = format_string
1899
self._default_format = None
2241
1902
network_format_registry = registry.FormatRegistry()
2246
1907
BranchFormat.network_name() for more detail.
1910
format_registry = BranchFormatRegistry(network_format_registry)
2250
1913
# formats which have no format string are not discoverable
2251
1914
# and not independently creatable, so are not registered.
2252
__format5 = BzrBranchFormat5()
2253
__format6 = BzrBranchFormat6()
2254
__format7 = BzrBranchFormat7()
2255
__format8 = BzrBranchFormat8()
2256
BranchFormat.register_format(__format5)
2257
BranchFormat.register_format(BranchReferenceFormat())
2258
BranchFormat.register_format(__format6)
2259
BranchFormat.register_format(__format7)
2260
BranchFormat.register_format(__format8)
2261
BranchFormat.set_default_format(__format7)
2262
_legacy_formats = [BzrBranchFormat4(),
2264
network_format_registry.register(
2265
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2268
class BzrBranch(Branch, _RelockDebugMixin):
2269
"""A branch stored in the actual filesystem.
2271
Note that it's "local" in the context of the filesystem; it doesn't
2272
really matter if it's on an nfs/smb/afs/coda/... share, as long as
2273
it's writable, and can be accessed via the normal filesystem API.
2275
:ivar _transport: Transport for file operations on this branch's
2276
control files, typically pointing to the .bzr/branch directory.
2277
:ivar repository: Repository for this branch.
2278
:ivar base: The url of the base directory for this branch; the one
2279
containing the .bzr directory.
2280
:ivar name: Optional colocated branch name as it exists in the control
2284
def __init__(self, _format=None,
2285
_control_files=None, a_bzrdir=None, name=None,
2286
_repository=None, ignore_fallbacks=False):
2287
"""Create new branch object at a particular location."""
2288
if a_bzrdir is None:
2289
raise ValueError('a_bzrdir must be supplied')
2291
self.bzrdir = a_bzrdir
2292
self._base = self.bzrdir.transport.clone('..').base
2294
# XXX: We should be able to just do
2295
# self.base = self.bzrdir.root_transport.base
2296
# but this does not quite work yet -- mbp 20080522
2297
self._format = _format
2298
if _control_files is None:
2299
raise ValueError('BzrBranch _control_files is None')
2300
self.control_files = _control_files
2301
self._transport = _control_files._transport
2302
self.repository = _repository
2303
Branch.__init__(self)
2306
if self.name is None:
2307
return '%s(%s)' % (self.__class__.__name__, self.user_url)
2309
return '%s(%s,%s)' % (self.__class__.__name__, self.user_url,
2314
def _get_base(self):
2315
"""Returns the directory containing the control directory."""
2318
base = property(_get_base, doc="The URL for the root of this branch.")
2320
def _get_config(self):
2321
return TransportConfig(self._transport, 'branch.conf')
2323
def is_locked(self):
2324
return self.control_files.is_locked()
2326
def lock_write(self, token=None):
2327
if not self.is_locked():
2328
self._note_lock('w')
2329
# All-in-one needs to always unlock/lock.
2330
repo_control = getattr(self.repository, 'control_files', None)
2331
if self.control_files == repo_control or not self.is_locked():
2332
self.repository._warn_if_deprecated(self)
2333
self.repository.lock_write()
2338
return self.control_files.lock_write(token=token)
2341
self.repository.unlock()
2344
def lock_read(self):
2345
if not self.is_locked():
2346
self._note_lock('r')
2347
# All-in-one needs to always unlock/lock.
2348
repo_control = getattr(self.repository, 'control_files', None)
2349
if self.control_files == repo_control or not self.is_locked():
2350
self.repository._warn_if_deprecated(self)
2351
self.repository.lock_read()
2356
self.control_files.lock_read()
2359
self.repository.unlock()
2362
@only_raises(errors.LockNotHeld, errors.LockBroken)
2365
self.control_files.unlock()
2367
# All-in-one needs to always unlock/lock.
2368
repo_control = getattr(self.repository, 'control_files', None)
2369
if (self.control_files == repo_control or
2370
not self.control_files.is_locked()):
2371
self.repository.unlock()
2372
if not self.control_files.is_locked():
2373
# we just released the lock
2374
self._clear_cached_state()
2376
def peek_lock_mode(self):
2377
if self.control_files._lock_count == 0:
2380
return self.control_files._lock_mode
2382
def get_physical_lock_status(self):
2383
return self.control_files.get_physical_lock_status()
2386
def print_file(self, file, revision_id):
2387
"""See Branch.print_file."""
2388
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)
2454
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
2465
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))
2495
def basis_tree(self):
2496
"""See Branch.basis_tree."""
2497
return self.repository.revision_tree(self.last_revision())
2499
def _get_parent_location(self):
2500
_locs = ['parent', 'pull', 'x-pull']
2503
return self._transport.get_bytes(l).strip('\n')
2504
except errors.NoSuchFile:
2508
def _basic_push(self, target, overwrite, stop_revision):
2509
"""Basic implementation of push without bound branches or hooks.
2511
Must be called with source read locked and target write locked.
2513
result = BranchPushResult()
2514
result.source_branch = self
2515
result.target_branch = target
2516
result.old_revno, result.old_revid = target.last_revision_info()
2517
self.update_references(target)
2518
if result.old_revid != self.last_revision():
2519
# We assume that during 'push' this repository is closer than
2521
graph = self.repository.get_graph(target.repository)
2522
target.update_revisions(self, stop_revision,
2523
overwrite=overwrite, graph=graph)
2524
if self._push_should_merge_tags():
2525
result.tag_conflicts = self.tags.merge_to(target.tags,
2527
result.new_revno, result.new_revid = target.last_revision_info()
2530
def get_stacked_on_url(self):
2531
raise errors.UnstackableBranchFormat(self._format, self.user_url)
2533
def set_push_location(self, location):
2534
"""See Branch.set_push_location."""
2535
self.get_config().set_user_option(
2536
'push_location', location,
2537
store=_mod_config.STORE_LOCATION_NORECURSE)
2539
def _set_parent_location(self, url):
2541
self._transport.delete('parent')
2543
self._transport.put_bytes('parent', url + '\n',
2544
mode=self.bzrdir._get_file_mode())
2547
class BzrBranch5(BzrBranch):
2548
"""A format 5 branch. This supports new features over plain branches.
2550
It has support for a master_branch which is the data for bound branches.
2553
def get_bound_location(self):
2555
return self._transport.get_bytes('bound')[:-1]
2556
except errors.NoSuchFile:
2560
def get_master_branch(self, possible_transports=None):
2561
"""Return the branch we are bound to.
2563
:return: Either a Branch, or None
2565
This could memoise the branch, but if thats done
2566
it must be revalidated on each new lock.
2567
So for now we just don't memoise it.
2568
# RBC 20060304 review this decision.
2570
bound_loc = self.get_bound_location()
2574
return Branch.open(bound_loc,
2575
possible_transports=possible_transports)
2576
except (errors.NotBranchError, errors.ConnectionError), e:
2577
raise errors.BoundBranchConnectionFailure(
2581
def set_bound_location(self, location):
2582
"""Set the target where this branch is bound to.
2584
:param location: URL to the target branch
2587
self._transport.put_bytes('bound', location+'\n',
2588
mode=self.bzrdir._get_file_mode())
2591
self._transport.delete('bound')
2592
except errors.NoSuchFile:
2597
def bind(self, other):
2598
"""Bind this branch to the branch other.
2600
This does not push or pull data between the branches, though it does
2601
check for divergence to raise an error when the branches are not
2602
either the same, or one a prefix of the other. That behaviour may not
2603
be useful, so that check may be removed in future.
2605
:param other: The branch to bind to
2608
# TODO: jam 20051230 Consider checking if the target is bound
2609
# It is debatable whether you should be able to bind to
2610
# a branch which is itself bound.
2611
# Committing is obviously forbidden,
2612
# but binding itself may not be.
2613
# Since we *have* to check at commit time, we don't
2614
# *need* to check here
2616
# we want to raise diverged if:
2617
# last_rev is not in the other_last_rev history, AND
2618
# other_last_rev is not in our history, and do it without pulling
2620
self.set_bound_location(other.base)
2624
"""If bound, unbind"""
2625
return self.set_bound_location(None)
2628
def update(self, possible_transports=None):
2629
"""Synchronise this branch with the master branch if any.
2631
:return: None or the last_revision that was pivoted out during the
2634
master = self.get_master_branch(possible_transports)
2635
if master is not None:
2636
old_tip = _mod_revision.ensure_null(self.last_revision())
2637
self.pull(master, overwrite=True)
2638
if self.repository.get_graph().is_ancestor(old_tip,
2639
_mod_revision.ensure_null(self.last_revision())):
2645
class BzrBranch8(BzrBranch5):
2646
"""A branch that stores tree-reference locations."""
2648
def _open_hook(self):
2649
if self._ignore_fallbacks:
2652
url = self.get_stacked_on_url()
2653
except (errors.UnstackableRepositoryFormat, errors.NotStacked,
2654
errors.UnstackableBranchFormat):
2657
for hook in Branch.hooks['transform_fallback_location']:
2658
url = hook(self, url)
2660
hook_name = Branch.hooks.get_hook_name(hook)
2661
raise AssertionError(
2662
"'transform_fallback_location' hook %s returned "
2663
"None, not a URL." % hook_name)
2664
self._activate_fallback_location(url)
2666
def __init__(self, *args, **kwargs):
2667
self._ignore_fallbacks = kwargs.get('ignore_fallbacks', False)
2668
super(BzrBranch8, self).__init__(*args, **kwargs)
2669
self._last_revision_info_cache = None
2670
self._reference_info = None
2672
def _clear_cached_state(self):
2673
super(BzrBranch8, self)._clear_cached_state()
2674
self._last_revision_info_cache = None
2675
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
def _check_history_violation(self, revision_id):
2723
last_revision = _mod_revision.ensure_null(self.last_revision())
2724
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)
2729
def _gen_revision_history(self):
2730
"""Generate the revision history from last revision
2732
last_revno, last_revision = self.last_revision_info()
2733
self._extend_partial_history(stop_index=last_revno-1)
2734
return list(reversed(self._partial_revision_history_cache))
2736
def _write_revision_history(self, history):
2737
"""Factored out of set_revision_history.
2739
This performs the actual writing to disk, with format-specific checks.
2740
It is intended to be called by BzrBranch5.set_revision_history.
2742
if len(history) == 0:
2743
last_revision = 'null:'
2745
if history != self._lefthand_history(history[-1]):
2746
raise errors.NotLefthandHistory(history)
2747
last_revision = history[-1]
2748
if self._get_append_revisions_only():
2749
self._check_history_violation(last_revision)
2750
self._write_last_revision_info(len(history), last_revision)
2753
def _set_parent_location(self, url):
2754
"""Set the parent branch"""
2755
self._set_config_location('parent_location', url, make_relative=True)
2758
def _get_parent_location(self):
2759
"""Set the parent branch"""
2760
return self._get_config_location('parent_location')
2763
def _set_all_reference_info(self, info_dict):
2764
"""Replace all reference info stored in a branch.
2766
:param info_dict: A dict of {file_id: (tree_path, branch_location)}
2769
writer = rio.RioWriter(s)
2770
for key, (tree_path, branch_location) in info_dict.iteritems():
2771
stanza = rio.Stanza(file_id=key, tree_path=tree_path,
2772
branch_location=branch_location)
2773
writer.write_stanza(stanza)
2774
self._transport.put_bytes('references', s.getvalue())
2775
self._reference_info = info_dict
2778
def _get_all_reference_info(self):
2779
"""Return all the reference info stored in a branch.
2781
:return: A dict of {file_id: (tree_path, branch_location)}
2783
if self._reference_info is not None:
2784
return self._reference_info
2785
rio_file = self._transport.get('references')
2787
stanzas = rio.read_stanzas(rio_file)
2788
info_dict = dict((s['file_id'], (s['tree_path'],
2789
s['branch_location'])) for s in stanzas)
2792
self._reference_info = info_dict
2795
def set_reference_info(self, file_id, tree_path, branch_location):
2796
"""Set the branch location to use for a tree reference.
2798
:param file_id: The file-id of the tree reference.
2799
:param tree_path: The path of the tree reference in the tree.
2800
:param branch_location: The location of the branch to retrieve tree
2803
info_dict = self._get_all_reference_info()
2804
info_dict[file_id] = (tree_path, branch_location)
2805
if None in (tree_path, branch_location):
2806
if tree_path is not None:
2807
raise ValueError('tree_path must be None when branch_location'
2809
if branch_location is not None:
2810
raise ValueError('branch_location must be None when tree_path'
2812
del info_dict[file_id]
2813
self._set_all_reference_info(info_dict)
2815
def get_reference_info(self, file_id):
2816
"""Get the tree_path and branch_location for a tree reference.
2818
:return: a tuple of (tree_path, branch_location)
2820
return self._get_all_reference_info().get(file_id, (None, None))
2822
def reference_parent(self, file_id, path, possible_transports=None):
2823
"""Return the parent branch for a tree-reference file_id.
2825
:param file_id: The file_id of the tree reference
2826
:param path: The path of the file_id in the tree
2827
:return: A branch associated with the file_id
2829
branch_location = self.get_reference_info(file_id)[1]
2830
if branch_location is None:
2831
return Branch.reference_parent(self, file_id, path,
2832
possible_transports)
2833
branch_location = urlutils.join(self.user_url, branch_location)
2834
return Branch.open(branch_location,
2835
possible_transports=possible_transports)
2837
def set_push_location(self, location):
2838
"""See Branch.set_push_location."""
2839
self._set_config_location('push_location', location)
2841
def set_bound_location(self, location):
2842
"""See Branch.set_push_location."""
2844
config = self.get_config()
2845
if location is None:
2846
if config.get_user_option('bound') != 'True':
2849
config.set_user_option('bound', 'False', warn_masked=True)
2852
self._set_config_location('bound_location', location,
2854
config.set_user_option('bound', 'True', warn_masked=True)
2857
def _get_bound_location(self, bound):
2858
"""Return the bound location in the config file.
2860
Return None if the bound parameter does not match"""
2861
config = self.get_config()
2862
config_bound = (config.get_user_option('bound') == 'True')
2863
if config_bound != bound:
2865
return self._get_config_location('bound_location', config=config)
2867
def get_bound_location(self):
2868
"""See Branch.set_push_location."""
2869
return self._get_bound_location(True)
2871
def get_old_bound_location(self):
2872
"""See Branch.get_old_bound_location"""
2873
return self._get_bound_location(False)
2875
def get_stacked_on_url(self):
2876
# you can always ask for the URL; but you might not be able to use it
2877
# if the repo can't support stacking.
2878
## self._check_stackable_repo()
2879
stacked_url = self._get_config_location('stacked_on_location')
2880
if stacked_url is None:
2881
raise errors.NotStacked(self)
2884
def _get_append_revisions_only(self):
2885
return self.get_config(
2886
).get_user_option_as_bool('append_revisions_only')
2889
def generate_revision_history(self, revision_id, last_rev=None,
2891
"""See BzrBranch5.generate_revision_history"""
2892
history = self._lefthand_history(revision_id, last_rev, other_branch)
2893
revno = len(history)
2894
self.set_last_revision_info(revno, revision_id)
2897
def get_rev_id(self, revno, history=None):
2898
"""Find the revision id of the specified revno."""
2900
return _mod_revision.NULL_REVISION
2902
last_revno, last_revision_id = self.last_revision_info()
2903
if revno <= 0 or revno > last_revno:
2904
raise errors.NoSuchRevision(self, revno)
2906
if history is not None:
2907
return history[revno - 1]
2909
index = last_revno - revno
2910
if len(self._partial_revision_history_cache) <= index:
2911
self._extend_partial_history(stop_index=index)
2912
if len(self._partial_revision_history_cache) > index:
2913
return self._partial_revision_history_cache[index]
2915
raise errors.NoSuchRevision(self, revno)
2918
def revision_id_to_revno(self, revision_id):
2919
"""Given a revision id, return its revno"""
2920
if _mod_revision.is_null(revision_id):
2923
index = self._partial_revision_history_cache.index(revision_id)
2925
self._extend_partial_history(stop_revision=revision_id)
2926
index = len(self._partial_revision_history_cache) - 1
2927
if self._partial_revision_history_cache[index] != revision_id:
2928
raise errors.NoSuchRevision(self, revision_id)
2929
return self.revno() - index
2932
class BzrBranch7(BzrBranch8):
2933
"""A branch with support for a fallback repository."""
2935
def set_reference_info(self, file_id, tree_path, branch_location):
2936
Branch.set_reference_info(self, file_id, tree_path, branch_location)
2938
def get_reference_info(self, file_id):
2939
Branch.get_reference_info(self, file_id)
2941
def reference_parent(self, file_id, path, possible_transports=None):
2942
return Branch.reference_parent(self, file_id, path,
2943
possible_transports)
2946
class BzrBranch6(BzrBranch7):
2947
"""See BzrBranchFormat6 for the capabilities of this branch.
2949
This subclass of BzrBranch7 disables the new features BzrBranch7 added,
2953
def get_stacked_on_url(self):
2954
raise errors.UnstackableBranchFormat(self._format, self.user_url)
1915
format_registry.register_lazy(
1916
b"Bazaar-NG branch format 5\n", "breezy.bzr.fullhistory",
1918
format_registry.register_lazy(
1919
b"Bazaar Branch Format 6 (bzr 0.15)\n",
1920
"breezy.bzr.branch", "BzrBranchFormat6")
1921
format_registry.register_lazy(
1922
b"Bazaar Branch Format 7 (needs bzr 1.6)\n",
1923
"breezy.bzr.branch", "BzrBranchFormat7")
1924
format_registry.register_lazy(
1925
b"Bazaar Branch Format 8 (needs bzr 1.15)\n",
1926
"breezy.bzr.branch", "BzrBranchFormat8")
1927
format_registry.register_lazy(
1928
b"Bazaar-NG Branch Reference Format 1\n",
1929
"breezy.bzr.branch", "BranchReferenceFormat")
1931
format_registry.set_default_key(b"Bazaar Branch Format 7 (needs bzr 1.6)\n")
1934
class BranchWriteLockResult(LogicalLockResult):
1935
"""The result of write locking a branch.
1937
:ivar token: The token obtained from the underlying branch lock, or
1939
:ivar unlock: A callable which will unlock the lock.
1943
return "BranchWriteLockResult(%r, %r)" % (self.unlock, self.token)
2957
1946
######################################################################
3225
2204
if graph is None:
3226
2205
graph = self.target.repository.get_graph()
3227
2206
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)])
2207
self.target.last_revision_info()
2208
stop_revno = graph.find_distance_to_null(
2209
stop_revision, [(other_last_revision, other_revno),
2210
(this_last_revision, this_revno)])
3232
2211
self.target.set_last_revision_info(stop_revno, stop_revision)
3234
self.source.unlock()
3236
2213
def pull(self, overwrite=False, stop_revision=None,
3237
possible_transports=None, _hook_master=None, run_hooks=True,
2214
possible_transports=None, run_hooks=True,
3238
2215
_override_hook_target=None, local=False):
2216
"""Pull from source into self, updating my master if any.
2218
:param run_hooks: Private parameter - if false, this branch
2219
is being called because it's the master of the primary branch,
2220
so it should not run its hooks.
2222
with self.target.lock_write():
2223
bound_location = self.target.get_bound_location()
2224
if local and not bound_location:
2225
raise errors.LocalRequiresBoundBranch()
2226
master_branch = None
2227
source_is_master = False
2229
# bound_location comes from a config file, some care has to be
2230
# taken to relate it to source.user_url
2231
normalized = urlutils.normalize_url(bound_location)
2233
relpath = self.source.user_transport.relpath(normalized)
2234
source_is_master = (relpath == '')
2235
except (errors.PathNotChild, urlutils.InvalidURL):
2236
source_is_master = False
2237
if not local and bound_location and not source_is_master:
2238
# not pulling from master, so we need to update master.
2239
master_branch = self.target.get_master_branch(
2240
possible_transports)
2241
master_branch.lock_write()
2244
# pull from source into master.
2246
self.source, overwrite, stop_revision, run_hooks=False)
2248
overwrite, stop_revision, _hook_master=master_branch,
2249
run_hooks=run_hooks,
2250
_override_hook_target=_override_hook_target,
2251
merge_tags_to_master=not source_is_master)
2254
master_branch.unlock()
2256
def push(self, overwrite=False, stop_revision=None, lossy=False,
2257
_override_hook_source_branch=None):
2258
"""See InterBranch.push.
2260
This is the basic concrete implementation of push()
2262
:param _override_hook_source_branch: If specified, run the hooks
2263
passing this Branch as the source, rather than self. This is for
2264
use of RemoteBranch, where push is delegated to the underlying
2268
raise errors.LossyPushToSameVCS(self.source, self.target)
2269
# TODO: Public option to disable running hooks - should be trivial but
2273
if _override_hook_source_branch:
2274
result.source_branch = _override_hook_source_branch
2275
for hook in Branch.hooks['post_push']:
2278
with self.source.lock_read(), self.target.lock_write():
2279
bound_location = self.target.get_bound_location()
2280
if bound_location and self.target.base != bound_location:
2281
# there is a master branch.
2283
# XXX: Why the second check? Is it even supported for a branch
2284
# to be bound to itself? -- mbp 20070507
2285
master_branch = self.target.get_master_branch()
2286
with master_branch.lock_write():
2287
# push into the master from the source branch.
2288
master_inter = InterBranch.get(self.source, master_branch)
2289
master_inter._basic_push(overwrite, stop_revision)
2290
# and push into the target branch from the source. Note
2291
# that we push from the source branch again, because it's
2292
# considered the highest bandwidth repository.
2293
result = self._basic_push(overwrite, stop_revision)
2294
result.master_branch = master_branch
2295
result.local_branch = self.target
2298
master_branch = None
2300
result = self._basic_push(overwrite, stop_revision)
2301
# TODO: Why set master_branch and local_branch if there's no
2302
# binding? Maybe cleaner to just leave them unset? -- mbp
2304
result.master_branch = self.target
2305
result.local_branch = None
2309
def _basic_push(self, overwrite, stop_revision):
2310
"""Basic implementation of push without bound branches or hooks.
2312
Must be called with source read locked and target write locked.
2314
result = BranchPushResult()
2315
result.source_branch = self.source
2316
result.target_branch = self.target
2317
result.old_revno, result.old_revid = self.target.last_revision_info()
2318
self.source.update_references(self.target)
2319
overwrite = _fix_overwrite_type(overwrite)
2320
if result.old_revid != stop_revision:
2321
# We assume that during 'push' this repository is closer than
2323
graph = self.source.repository.get_graph(self.target.repository)
2324
self._update_revisions(
2325
stop_revision, overwrite=("history" in overwrite), graph=graph)
2326
if self.source._push_should_merge_tags():
2327
result.tag_updates, result.tag_conflicts = (
2328
self.source.tags.merge_to(
2329
self.target.tags, "tags" in overwrite))
2330
result.new_revno, result.new_revid = self.target.last_revision_info()
2333
def _pull(self, overwrite=False, stop_revision=None,
2334
possible_transports=None, _hook_master=None, run_hooks=True,
2335
_override_hook_target=None, local=False,
2336
merge_tags_to_master=True):
3239
2337
"""See Branch.pull.
2339
This function is the core worker, used by GenericInterBranch.pull to
2340
avoid duplication when pulling source->master and source->local.
3241
2342
:param _hook_master: Private parameter - set the branch to
3242
2343
be supplied as the master to pull hooks.
3243
2344
:param run_hooks: Private parameter - if false, this branch
3244
2345
is being called because it's the master of the primary branch,
3245
2346
so it should not run its hooks.
2347
is being called because it's the master of the primary branch,
2348
so it should not run its hooks.
3246
2349
:param _override_hook_target: Private parameter - set the branch to be
3247
2350
supplied as the target_branch to pull hooks.
3248
2351
:param local: Only update the local branch, and not the bound branch.
added
removed
breezy/branch.py
