456
446
# start_revision_id.
457
447
if self._merge_sorted_revisions_cache is None:
458
448
last_revision = self.last_revision()
459
known_graph = self.repository.get_known_graph_ancestry(
461
self._merge_sorted_revisions_cache = known_graph.merge_sort(
449
graph = self.repository.get_graph()
450
parent_map = dict(((key, value) for key, value in
451
graph.iter_ancestry([last_revision]) if value is not None))
452
revision_graph = repository._strip_NULL_ghosts(parent_map)
453
revs = tsort.merge_sort(revision_graph, last_revision, None,
455
# Drop the sequence # before caching
456
self._merge_sorted_revisions_cache = [r[1:] for r in revs]
463
458
filtered = self._filter_merge_sorted_revisions(
464
459
self._merge_sorted_revisions_cache, start_revision_id,
465
460
stop_revision_id, stop_rule)
466
# Make sure we don't return revisions that are not part of the
467
# start_revision_id ancestry.
468
filtered = self._filter_start_non_ancestors(filtered)
469
461
if direction == 'reverse':
471
463
if direction == 'forward':
478
470
"""Iterate over an inclusive range of sorted revisions."""
479
471
rev_iter = iter(merge_sorted_revisions)
480
472
if start_revision_id is not None:
481
for node in rev_iter:
482
rev_id = node.key[-1]
473
for rev_id, depth, revno, end_of_merge in rev_iter:
483
474
if rev_id != start_revision_id:
486
477
# The decision to include the start or not
487
478
# depends on the stop_rule if a stop is provided
488
# so pop this node back into the iterator
489
rev_iter = chain(iter([node]), rev_iter)
480
iter([(rev_id, depth, revno, end_of_merge)]),
491
483
if stop_revision_id is None:
493
for node in rev_iter:
494
rev_id = node.key[-1]
495
yield (rev_id, node.merge_depth, node.revno,
484
for rev_id, depth, revno, end_of_merge in rev_iter:
485
yield rev_id, depth, revno, end_of_merge
497
486
elif stop_rule == 'exclude':
498
for node in rev_iter:
499
rev_id = node.key[-1]
487
for rev_id, depth, revno, end_of_merge in rev_iter:
500
488
if rev_id == stop_revision_id:
502
yield (rev_id, node.merge_depth, node.revno,
490
yield rev_id, depth, revno, end_of_merge
504
491
elif stop_rule == 'include':
505
for node in rev_iter:
506
rev_id = node.key[-1]
507
yield (rev_id, node.merge_depth, node.revno,
492
for rev_id, depth, revno, end_of_merge in rev_iter:
493
yield rev_id, depth, revno, end_of_merge
509
494
if rev_id == stop_revision_id:
511
elif stop_rule == 'with-merges-without-common-ancestry':
512
# We want to exclude all revisions that are already part of the
513
# stop_revision_id ancestry.
514
graph = self.repository.get_graph()
515
ancestors = graph.find_unique_ancestors(start_revision_id,
517
for node in rev_iter:
518
rev_id = node.key[-1]
519
if rev_id not in ancestors:
521
yield (rev_id, node.merge_depth, node.revno,
523
496
elif stop_rule == 'with-merges':
524
497
stop_rev = self.repository.get_revision(stop_revision_id)
525
498
if stop_rev.parent_ids:
526
499
left_parent = stop_rev.parent_ids[0]
528
501
left_parent = _mod_revision.NULL_REVISION
529
# left_parent is the actual revision we want to stop logging at,
530
# since we want to show the merged revisions after the stop_rev too
531
reached_stop_revision_id = False
532
revision_id_whitelist = []
533
for node in rev_iter:
534
rev_id = node.key[-1]
502
for rev_id, depth, revno, end_of_merge in rev_iter:
535
503
if rev_id == left_parent:
536
# reached the left parent after the stop_revision
538
if (not reached_stop_revision_id or
539
rev_id in revision_id_whitelist):
540
yield (rev_id, node.merge_depth, node.revno,
542
if reached_stop_revision_id or rev_id == stop_revision_id:
543
# only do the merged revs of rev_id from now on
544
rev = self.repository.get_revision(rev_id)
546
reached_stop_revision_id = True
547
revision_id_whitelist.extend(rev.parent_ids)
505
yield rev_id, depth, revno, end_of_merge
549
507
raise ValueError('invalid stop_rule %r' % stop_rule)
551
def _filter_start_non_ancestors(self, rev_iter):
552
# If we started from a dotted revno, we want to consider it as a tip
553
# and don't want to yield revisions that are not part of its
554
# ancestry. Given the order guaranteed by the merge sort, we will see
555
# uninteresting descendants of the first parent of our tip before the
557
first = rev_iter.next()
558
(rev_id, merge_depth, revno, end_of_merge) = first
561
# We start at a mainline revision so by definition, all others
562
# revisions in rev_iter are ancestors
563
for node in rev_iter:
568
pmap = self.repository.get_parent_map([rev_id])
569
parents = pmap.get(rev_id, [])
571
whitelist.update(parents)
573
# If there is no parents, there is nothing of interest left
575
# FIXME: It's hard to test this scenario here as this code is never
576
# called in that case. -- vila 20100322
579
for (rev_id, merge_depth, revno, end_of_merge) in rev_iter:
581
if rev_id in whitelist:
582
pmap = self.repository.get_parent_map([rev_id])
583
parents = pmap.get(rev_id, [])
584
whitelist.remove(rev_id)
585
whitelist.update(parents)
587
# We've reached the mainline, there is nothing left to
591
# A revision that is not part of the ancestry of our
594
yield (rev_id, merge_depth, revno, end_of_merge)
596
509
def leave_lock_in_place(self):
597
510
"""Tell this branch object not to release the physical lock when this
598
511
object is unlocked.
1357
1275
# XXX: Fix the bzrdir API to allow getting the branch back from the
1358
1276
# clone call. Or something. 20090224 RBC/spiv.
1359
# XXX: Should this perhaps clone colocated branches as well,
1360
# rather than just the default branch? 20100319 JRV
1361
1277
if revision_id is None:
1362
1278
revision_id = self.last_revision()
1363
dir_to = self.bzrdir.clone_on_transport(to_transport,
1364
revision_id=revision_id, stacked_on=stacked_on,
1365
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1280
dir_to = self.bzrdir.clone_on_transport(to_transport,
1281
revision_id=revision_id, stacked_on=stacked_on,
1282
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1283
except errors.FileExists:
1284
if not use_existing_dir:
1286
except errors.NoSuchFile:
1287
if not create_prefix:
1366
1289
return dir_to.open_branch()
1368
1291
def create_checkout(self, to_location, revision_id=None,
1568
1476
"""Return the short format description for this format."""
1569
1477
raise NotImplementedError(self.get_format_description)
1571
def _run_post_branch_init_hooks(self, a_bzrdir, name, branch):
1572
hooks = Branch.hooks['post_branch_init']
1575
params = BranchInitHookParams(self, a_bzrdir, name, branch)
1579
def _initialize_helper(self, a_bzrdir, utf8_files, name=None,
1580
lock_type='metadir', set_format=True):
1479
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1581
1481
"""Initialize a branch in a bzrdir, with specified files
1583
1483
:param a_bzrdir: The bzrdir to initialize the branch in
1584
1484
:param utf8_files: The files to create as a list of
1585
1485
(filename, content) tuples
1586
:param name: Name of colocated branch to create, if any
1587
1486
:param set_format: If True, set the format with
1588
1487
self.get_format_string. (BzrBranch4 has its format set
1590
1489
:return: a branch in this format
1592
mutter('creating branch %r in %s', self, a_bzrdir.user_url)
1593
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1491
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1492
branch_transport = a_bzrdir.get_branch_transport(self)
1595
1494
'metadir': ('lock', lockdir.LockDir),
1596
1495
'branch4': ('branch-lock', lockable_files.TransportLock),
1779
1672
"multiple hooks installed for transform_fallback_location, "
1780
1673
"all are called with the url returned from the previous hook."
1781
1674
"The order is however undefined.", (1, 9), None))
1782
self.create_hook(HookPoint('automatic_tag_name',
1783
"Called to determine an automatic tag name for a revision."
1784
"automatic_tag_name is called with (branch, revision_id) and "
1785
"should return a tag name or None if no tag name could be "
1786
"determined. The first non-None tag name returned will be used.",
1788
self.create_hook(HookPoint('post_branch_init',
1789
"Called after new branch initialization completes. "
1790
"post_branch_init is called with a "
1791
"bzrlib.branch.BranchInitHookParams. "
1792
"Note that init, branch and checkout (both heavyweight and "
1793
"lightweight) will all trigger this hook.", (2, 2), None))
1794
self.create_hook(HookPoint('post_switch',
1795
"Called after a checkout switches branch. "
1796
"post_switch is called with a "
1797
"bzrlib.branch.SwitchHookParams.", (2, 2), None))
1801
1677
# install the default hooks into the Branch class.
1840
1716
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1843
class BranchInitHookParams(object):
1844
"""Object holding parameters passed to *_branch_init hooks.
1846
There are 4 fields that hooks may wish to access:
1848
:ivar format: the branch format
1849
:ivar bzrdir: the BzrDir where the branch will be/has been initialized
1850
:ivar name: name of colocated branch, if any (or None)
1851
:ivar branch: the branch created
1853
Note that for lightweight checkouts, the bzrdir and format fields refer to
1854
the checkout, hence they are different from the corresponding fields in
1855
branch, which refer to the original branch.
1858
def __init__(self, format, a_bzrdir, name, branch):
1859
"""Create a group of BranchInitHook parameters.
1861
:param format: the branch format
1862
:param a_bzrdir: the BzrDir where the branch will be/has been
1864
:param name: name of colocated branch, if any (or None)
1865
:param branch: the branch created
1867
Note that for lightweight checkouts, the bzrdir and format fields refer
1868
to the checkout, hence they are different from the corresponding fields
1869
in branch, which refer to the original branch.
1871
self.format = format
1872
self.bzrdir = a_bzrdir
1874
self.branch = branch
1876
def __eq__(self, other):
1877
return self.__dict__ == other.__dict__
1881
return "<%s of %s>" % (self.__class__.__name__, self.branch)
1883
return "<%s of format:%s bzrdir:%s>" % (
1884
self.__class__.__name__, self.branch,
1885
self.format, self.bzrdir)
1888
class SwitchHookParams(object):
1889
"""Object holding parameters passed to *_switch hooks.
1891
There are 4 fields that hooks may wish to access:
1893
:ivar control_dir: BzrDir of the checkout to change
1894
:ivar to_branch: branch that the checkout is to reference
1895
:ivar force: skip the check for local commits in a heavy checkout
1896
:ivar revision_id: revision ID to switch to (or None)
1899
def __init__(self, control_dir, to_branch, force, revision_id):
1900
"""Create a group of SwitchHook parameters.
1902
:param control_dir: BzrDir of the checkout to change
1903
:param to_branch: branch that the checkout is to reference
1904
:param force: skip the check for local commits in a heavy checkout
1905
:param revision_id: revision ID to switch to (or None)
1907
self.control_dir = control_dir
1908
self.to_branch = to_branch
1910
self.revision_id = revision_id
1912
def __eq__(self, other):
1913
return self.__dict__ == other.__dict__
1916
return "<%s for %s to (%s, %s)>" % (self.__class__.__name__,
1917
self.control_dir, self.to_branch,
1921
1719
class BzrBranchFormat4(BranchFormat):
1922
1720
"""Bzr branch format 4.
1976
1773
return self.get_format_string()
1978
def open(self, a_bzrdir, name=None, _found=False, ignore_fallbacks=False):
1775
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1979
1776
"""See BranchFormat.open()."""
1981
format = BranchFormat.find_format(a_bzrdir, name=name)
1778
format = BranchFormat.find_format(a_bzrdir)
1982
1779
if format.__class__ != self.__class__:
1983
1780
raise AssertionError("wrong format %r found for %r" %
1984
1781
(format, self))
1985
transport = a_bzrdir.get_branch_transport(None, name=name)
1783
transport = a_bzrdir.get_branch_transport(None)
1987
1784
control_files = lockable_files.LockableFiles(transport, 'lock',
1988
1785
lockdir.LockDir)
1989
1786
return self._branch_class()(_format=self,
1990
1787
_control_files=control_files,
1992
1788
a_bzrdir=a_bzrdir,
1993
1789
_repository=a_bzrdir.find_repository(),
1994
1790
ignore_fallbacks=ignore_fallbacks)
1995
1791
except errors.NoSuchFile:
1996
raise errors.NotBranchError(path=transport.base, bzrdir=a_bzrdir)
1792
raise errors.NotBranchError(path=transport.base)
1998
1794
def __init__(self):
1999
1795
super(BranchFormatMetadir, self).__init__()
2171
1967
"""See BranchFormat.get_format_description()."""
2172
1968
return "Checkout reference format 1"
2174
def get_reference(self, a_bzrdir, name=None):
1970
def get_reference(self, a_bzrdir):
2175
1971
"""See BranchFormat.get_reference()."""
2176
transport = a_bzrdir.get_branch_transport(None, name=name)
2177
return transport.get_bytes('location')
1972
transport = a_bzrdir.get_branch_transport(None)
1973
return transport.get('location').read()
2179
def set_reference(self, a_bzrdir, name, to_branch):
1975
def set_reference(self, a_bzrdir, to_branch):
2180
1976
"""See BranchFormat.set_reference()."""
2181
transport = a_bzrdir.get_branch_transport(None, name=name)
1977
transport = a_bzrdir.get_branch_transport(None)
2182
1978
location = transport.put_bytes('location', to_branch.base)
2184
def initialize(self, a_bzrdir, name=None, target_branch=None):
1980
def initialize(self, a_bzrdir, target_branch=None):
2185
1981
"""Create a branch of this format in a_bzrdir."""
2186
1982
if target_branch is None:
2187
1983
# this format does not implement branch itself, thus the implicit
2188
1984
# creation contract must see it as uninitializable
2189
1985
raise errors.UninitializableFormat(self)
2190
mutter('creating branch reference in %s', a_bzrdir.user_url)
2191
branch_transport = a_bzrdir.get_branch_transport(self, name=name)
1986
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1987
branch_transport = a_bzrdir.get_branch_transport(self)
2192
1988
branch_transport.put_bytes('location',
2193
target_branch.bzrdir.user_url)
1989
target_branch.bzrdir.root_transport.base)
2194
1990
branch_transport.put_bytes('format', self.get_format_string())
2196
a_bzrdir, name, _found=True,
1992
a_bzrdir, _found=True,
2197
1993
possible_transports=[target_branch.bzrdir.root_transport])
2198
self._run_post_branch_init_hooks(a_bzrdir, name, branch)
2201
1995
def __init__(self):
2202
1996
super(BranchReferenceFormat, self).__init__()
2208
2002
def clone(to_bzrdir, revision_id=None,
2209
2003
repository_policy=None):
2210
2004
"""See Branch.clone()."""
2211
return format.initialize(to_bzrdir, target_branch=a_branch)
2005
return format.initialize(to_bzrdir, a_branch)
2212
2006
# cannot obey revision_id limits when cloning a reference ...
2213
2007
# FIXME RBC 20060210 either nuke revision_id for clone, or
2214
2008
# emit some sort of warning/error to the caller ?!
2217
def open(self, a_bzrdir, name=None, _found=False, location=None,
2011
def open(self, a_bzrdir, _found=False, location=None,
2218
2012
possible_transports=None, ignore_fallbacks=False):
2219
2013
"""Return the branch that the branch reference in a_bzrdir points at.
2221
2015
:param a_bzrdir: A BzrDir that contains a branch.
2222
:param name: Name of colocated branch to open, if any
2223
2016
:param _found: a private parameter, do not use it. It is used to
2224
2017
indicate if format probing has already be done.
2225
2018
:param ignore_fallbacks: when set, no fallback branches will be opened
2272
2064
BranchFormat.register_format(__format6)
2273
2065
BranchFormat.register_format(__format7)
2274
2066
BranchFormat.register_format(__format8)
2275
BranchFormat.set_default_format(__format7)
2067
BranchFormat.set_default_format(__format6)
2276
2068
_legacy_formats = [BzrBranchFormat4(),
2278
2070
network_format_registry.register(
2279
2071
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2282
class BranchWriteLockResult(LogicalLockResult):
2283
"""The result of write locking a branch.
2285
:ivar branch_token: The token obtained from the underlying branch lock, or
2287
:ivar unlock: A callable which will unlock the lock.
2290
def __init__(self, unlock, branch_token):
2291
LogicalLockResult.__init__(self, unlock)
2292
self.branch_token = branch_token
2295
return "BranchWriteLockResult(%s, %s)" % (self.branch_token,
2299
class BzrBranch(Branch, _RelockDebugMixin):
2074
class BzrBranch(Branch):
2300
2075
"""A branch stored in the actual filesystem.
2302
2077
Note that it's "local" in the context of the filesystem; it doesn't
2308
2083
:ivar repository: Repository for this branch.
2309
2084
:ivar base: The url of the base directory for this branch; the one
2310
2085
containing the .bzr directory.
2311
:ivar name: Optional colocated branch name as it exists in the control
2315
2088
def __init__(self, _format=None,
2316
_control_files=None, a_bzrdir=None, name=None,
2317
_repository=None, ignore_fallbacks=False):
2089
_control_files=None, a_bzrdir=None, _repository=None,
2090
ignore_fallbacks=False):
2318
2091
"""Create new branch object at a particular location."""
2319
2092
if a_bzrdir is None:
2320
2093
raise ValueError('a_bzrdir must be supplied')
2322
2095
self.bzrdir = a_bzrdir
2323
2096
self._base = self.bzrdir.transport.clone('..').base
2325
2097
# XXX: We should be able to just do
2326
2098
# self.base = self.bzrdir.root_transport.base
2327
2099
# but this does not quite work yet -- mbp 20080522
2355
2123
return self.control_files.is_locked()
2357
2125
def lock_write(self, token=None):
2358
"""Lock the branch for write operations.
2360
:param token: A token to permit reacquiring a previously held and
2362
:return: A BranchWriteLockResult.
2364
if not self.is_locked():
2365
self._note_lock('w')
2366
2126
# All-in-one needs to always unlock/lock.
2367
2127
repo_control = getattr(self.repository, 'control_files', None)
2368
2128
if self.control_files == repo_control or not self.is_locked():
2369
self.repository._warn_if_deprecated(self)
2370
2129
self.repository.lock_write()
2371
2130
took_lock = True
2373
2132
took_lock = False
2375
return BranchWriteLockResult(self.unlock,
2376
self.control_files.lock_write(token=token))
2134
return self.control_files.lock_write(token=token)
2379
2137
self.repository.unlock()
2382
2140
def lock_read(self):
2383
"""Lock the branch for read operations.
2385
:return: A bzrlib.lock.LogicalLockResult.
2387
if not self.is_locked():
2388
self._note_lock('r')
2389
2141
# All-in-one needs to always unlock/lock.
2390
2142
repo_control = getattr(self.repository, 'control_files', None)
2391
2143
if self.control_files == repo_control or not self.is_locked():
2392
self.repository._warn_if_deprecated(self)
2393
2144
self.repository.lock_read()
2394
2145
took_lock = True
2396
2147
took_lock = False
2398
2149
self.control_files.lock_read()
2399
return LogicalLockResult(self.unlock)
2402
2152
self.repository.unlock()
2405
@only_raises(errors.LockNotHeld, errors.LockBroken)
2406
2155
def unlock(self):
2408
2157
self.control_files.unlock()