137
84
"""Branch holding a history of revisions.
140
Base directory of the branch.
146
If _lock_mode is true, a positive count of the number of times the
150
Lock object from bzrlib.lock.
87
Base directory/url of the branch.
89
hooks: An instance of BranchHooks.
91
# this is really an instance variable - FIXME move it there
157
# Map some sort of prefix into a namespace
158
# stuff like "revno:10", "revid:", etc.
159
# This should match a prefix with a function which accepts
160
REVISION_NAMESPACES = {}
162
def __init__(self, base, init=False, find_root=True):
163
"""Create new branch object at a particular location.
165
base -- Base directory for the branch.
167
init -- If True, create new control files in a previously
168
unversioned directory. If False, the branch must already
171
find_root -- If true and init is false, find the root of the
172
existing branch containing base.
174
In the test suite, creation of new trees is tested using the
175
`ScratchBranch` class.
177
from bzrlib.store import ImmutableStore
179
self.base = os.path.realpath(base)
182
self.base = find_branch_root(base)
184
self.base = os.path.realpath(base)
185
if not isdir(self.controlfilename('.')):
186
from errors import NotBranchError
187
raise NotBranchError("not a bzr branch: %s" % quotefn(base),
188
['use "bzr init" to initialize a new working tree',
189
'current bzr can only operate from top-of-tree'])
192
self.text_store = ImmutableStore(self.controlfilename('text-store'))
193
self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
194
self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
198
return '%s(%r)' % (self.__class__.__name__, self.base)
205
if self._lock_mode or self._lock:
206
from warnings import warn
207
warn("branch %r was not explicitly unlocked" % self)
95
# override this to set the strategy for storing tags
97
return DisabledTags(self)
99
def __init__(self, *ignored, **ignored_too):
100
self.tags = self._make_tags()
101
self._revision_history_cache = None
102
self._revision_id_to_revno_cache = None
104
def break_lock(self):
105
"""Break a lock if one is present from another instance.
107
Uses the ui factory to ask for confirmation if the lock may be from
110
This will probe the repository for its lock as well.
112
self.control_files.break_lock()
113
self.repository.break_lock()
114
master = self.get_master_branch()
115
if master is not None:
119
@deprecated_method(zero_eight)
120
def open_downlevel(base):
121
"""Open a branch which may be of an old format."""
122
return Branch.open(base, _unsupported=True)
125
def open(base, _unsupported=False):
126
"""Open the branch rooted at base.
128
For instance, if the branch is at URL/.bzr/branch,
129
Branch.open(URL) -> a Branch instance.
131
control = bzrdir.BzrDir.open(base, _unsupported)
132
return control.open_branch(_unsupported)
135
def open_containing(url):
136
"""Open an existing branch which contains url.
138
This probes for a branch at url, and searches upwards from there.
140
Basically we keep looking up until we find the control directory or
141
run into the root. If there isn't one, raises NotBranchError.
142
If there is one and it is either an unrecognised format or an unsupported
143
format, UnknownFormatError or UnsupportedFormatError are raised.
144
If there is one, it is returned, along with the unused portion of url.
146
control, relpath = bzrdir.BzrDir.open_containing(url)
147
return control.open_branch(), relpath
150
@deprecated_function(zero_eight)
151
def initialize(base):
152
"""Create a new working tree and branch, rooted at 'base' (url)
154
NOTE: This will soon be deprecated in favour of creation
157
return bzrdir.BzrDir.create_standalone_workingtree(base).branch
159
@deprecated_function(zero_eight)
160
def setup_caching(self, cache_root):
161
"""Subclasses that care about caching should override this, and set
162
up cached stores located under cache_root.
164
NOTE: This is unused.
168
def get_config(self):
169
return BranchConfig(self)
172
return self.get_config().get_nickname()
174
def _set_nick(self, nick):
175
self.get_config().set_user_option('nickname', nick, warn_masked=True)
177
nick = property(_get_nick, _set_nick)
180
raise NotImplementedError(self.is_locked)
212
182
def lock_write(self):
214
if self._lock_mode != 'w':
215
from errors import LockError
216
raise LockError("can't upgrade to a write lock from %r" %
218
self._lock_count += 1
220
from bzrlib.lock import WriteLock
222
self._lock = WriteLock(self.controlfilename('branch-lock'))
223
self._lock_mode = 'w'
183
raise NotImplementedError(self.lock_write)
228
185
def lock_read(self):
230
assert self._lock_mode in ('r', 'w'), \
231
"invalid lock mode %r" % self._lock_mode
232
self._lock_count += 1
234
from bzrlib.lock import ReadLock
236
self._lock = ReadLock(self.controlfilename('branch-lock'))
237
self._lock_mode = 'r'
186
raise NotImplementedError(self.lock_read)
242
188
def unlock(self):
243
if not self._lock_mode:
244
from errors import LockError
245
raise LockError('branch %r is not locked' % (self))
247
if self._lock_count > 1:
248
self._lock_count -= 1
189
raise NotImplementedError(self.unlock)
191
def peek_lock_mode(self):
192
"""Return lock mode for the Branch: 'r', 'w' or None"""
193
raise NotImplementedError(self.peek_lock_mode)
195
def get_physical_lock_status(self):
196
raise NotImplementedError(self.get_physical_lock_status)
199
def get_revision_id_to_revno_map(self):
200
"""Return the revision_id => dotted revno map.
202
This will be regenerated on demand, but will be cached.
204
:return: A dictionary mapping revision_id => dotted revno.
205
This dictionary should not be modified by the caller.
207
if self._revision_id_to_revno_cache is not None:
208
mapping = self._revision_id_to_revno_cache
252
self._lock_mode = self._lock_count = None
210
mapping = self._gen_revno_map()
211
self._cache_revision_id_to_revno(mapping)
212
# TODO: jam 20070417 Since this is being cached, should we be returning
214
# I would rather not, and instead just declare that users should not
215
# modify the return value.
218
def _gen_revno_map(self):
219
"""Create a new mapping from revision ids to dotted revnos.
221
Dotted revnos are generated based on the current tip in the revision
223
This is the worker function for get_revision_id_to_revno_map, which
224
just caches the return value.
226
:return: A dictionary mapping revision_id => dotted revno.
228
last_revision = self.last_revision()
229
revision_graph = self.repository.get_revision_graph(last_revision)
230
merge_sorted_revisions = tsort.merge_sort(
235
revision_id_to_revno = dict((rev_id, revno)
236
for seq_num, rev_id, depth, revno, end_of_merge
237
in merge_sorted_revisions)
238
return revision_id_to_revno
240
def leave_lock_in_place(self):
241
"""Tell this branch object not to release the physical lock when this
244
If lock_write doesn't return a token, then this method is not supported.
246
self.control_files.leave_in_place()
248
def dont_leave_lock_in_place(self):
249
"""Tell this branch object to release the physical lock when this
250
object is unlocked, even if it didn't originally acquire it.
252
If lock_write doesn't return a token, then this method is not supported.
254
self.control_files.dont_leave_in_place()
255
256
def abspath(self, name):
256
"""Return absolute filename for something in the branch"""
257
return os.path.join(self.base, name)
260
def relpath(self, path):
261
"""Return path relative to this branch of something inside it.
263
Raises an error if path is not in this branch."""
264
return _relpath(self.base, path)
267
def controlfilename(self, file_or_path):
268
"""Return location relative to branch."""
269
if isinstance(file_or_path, basestring):
270
file_or_path = [file_or_path]
271
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
274
def controlfile(self, file_or_path, mode='r'):
275
"""Open a control file for this branch.
277
There are two classes of file in the control directory: text
278
and binary. binary files are untranslated byte streams. Text
279
control files are stored with Unix newlines and in UTF-8, even
280
if the platform or locale defaults are different.
282
Controlfiles should almost never be opened in write mode but
283
rather should be atomically copied and replaced using atomicfile.
286
fn = self.controlfilename(file_or_path)
288
if mode == 'rb' or mode == 'wb':
289
return file(fn, mode)
290
elif mode == 'r' or mode == 'w':
291
# open in binary mode anyhow so there's no newline translation;
292
# codecs uses line buffering by default; don't want that.
294
return codecs.open(fn, mode + 'b', 'utf-8',
297
raise BzrError("invalid controlfile mode %r" % mode)
301
def _make_control(self):
302
from bzrlib.inventory import Inventory
303
from bzrlib.xml import pack_xml
305
os.mkdir(self.controlfilename([]))
306
self.controlfile('README', 'w').write(
307
"This is a Bazaar-NG control directory.\n"
308
"Do not change any files in this directory.\n")
309
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
310
for d in ('text-store', 'inventory-store', 'revision-store'):
311
os.mkdir(self.controlfilename(d))
312
for f in ('revision-history', 'merged-patches',
313
'pending-merged-patches', 'branch-name',
316
self.controlfile(f, 'w').write('')
317
mutter('created control directory in ' + self.base)
319
pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
322
def _check_format(self):
323
"""Check this branch format is supported.
325
The current tool only supports the current unstable format.
327
In the future, we might need different in-memory Branch
328
classes to support downlevel branches. But not yet.
330
# This ignores newlines so that we can open branches created
331
# on Windows from Linux and so on. I think it might be better
332
# to always make all internal files in unix format.
333
fmt = self.controlfile('branch-format', 'r').read()
334
fmt.replace('\r\n', '')
335
if fmt != BZR_BRANCH_FORMAT:
336
raise BzrError('sorry, branch format %r not supported' % fmt,
337
['use a different bzr version',
338
'or remove the .bzr directory and "bzr init" again'])
340
def get_root_id(self):
341
"""Return the id of this branches root"""
342
inv = self.read_working_inventory()
343
return inv.root.file_id
345
def set_root_id(self, file_id):
346
inv = self.read_working_inventory()
347
orig_root_id = inv.root.file_id
348
del inv._byid[inv.root.file_id]
349
inv.root.file_id = file_id
350
inv._byid[inv.root.file_id] = inv.root
353
if entry.parent_id in (None, orig_root_id):
354
entry.parent_id = inv.root.file_id
355
self._write_inventory(inv)
357
def read_working_inventory(self):
358
"""Read the working inventory."""
359
from bzrlib.inventory import Inventory
360
from bzrlib.xml import unpack_xml
361
from time import time
365
# ElementTree does its own conversion from UTF-8, so open in
367
inv = unpack_xml(Inventory,
368
self.controlfile('inventory', 'rb'))
369
mutter("loaded inventory of %d items in %f"
370
% (len(inv), time() - before))
376
def _write_inventory(self, inv):
377
"""Update the working inventory.
379
That is to say, the inventory describing changes underway, that
380
will be committed to the next revision.
382
from bzrlib.atomicfile import AtomicFile
383
from bzrlib.xml import pack_xml
387
f = AtomicFile(self.controlfilename('inventory'), 'wb')
396
mutter('wrote working inventory')
399
inventory = property(read_working_inventory, _write_inventory, None,
400
"""Inventory for the working copy.""")
403
def add(self, files, verbose=False, ids=None):
404
"""Make files versioned.
406
Note that the command line normally calls smart_add instead.
408
This puts the files in the Added state, so that they will be
409
recorded by the next commit.
412
List of paths to add, relative to the base of the tree.
415
If set, use these instead of automatically generated ids.
416
Must be the same length as the list of files, but may
417
contain None for ids that are to be autogenerated.
419
TODO: Perhaps have an option to add the ids even if the files do
422
TODO: Perhaps return the ids of the files? But then again it
423
is easy to retrieve them if they're needed.
425
TODO: Adding a directory should optionally recurse down and
426
add all non-ignored children. Perhaps do that in a
429
# TODO: Re-adding a file that is removed in the working copy
430
# should probably put it back with the previous ID.
431
if isinstance(files, basestring):
432
assert(ids is None or isinstance(ids, basestring))
438
ids = [None] * len(files)
440
assert(len(ids) == len(files))
444
inv = self.read_working_inventory()
445
for f,file_id in zip(files, ids):
446
if is_control_file(f):
447
raise BzrError("cannot add control file %s" % quotefn(f))
452
raise BzrError("cannot add top-level %r" % f)
454
fullpath = os.path.normpath(self.abspath(f))
457
kind = file_kind(fullpath)
459
# maybe something better?
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
462
if kind != 'file' and kind != 'directory':
463
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
466
file_id = gen_file_id(f)
467
inv.add_path(f, kind=kind, file_id=file_id)
470
print 'added', quotefn(f)
472
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
474
self._write_inventory(inv)
479
def print_file(self, file, revno):
480
"""Print `file` to stdout."""
483
tree = self.revision_tree(self.lookup_revision(revno))
484
# use inventory as it was in that revision
485
file_id = tree.inventory.path2id(file)
487
raise BzrError("%r is not present in revision %s" % (file, revno))
488
tree.print_file(file_id)
493
def remove(self, files, verbose=False):
494
"""Mark nominated files for removal from the inventory.
496
This does not remove their text. This does not run on
498
TODO: Refuse to remove modified files unless --force is given?
500
TODO: Do something useful with directories.
502
TODO: Should this remove the text or not? Tough call; not
503
removing may be useful and the user can just use use rm, and
504
is the opposite of add. Removing it is consistent with most
505
other tools. Maybe an option.
507
## TODO: Normalize names
508
## TODO: Remove nested loops; better scalability
509
if isinstance(files, basestring):
515
tree = self.working_tree()
518
# do this before any modifications
522
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
523
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
525
# having remove it, it must be either ignored or unknown
526
if tree.is_ignored(f):
530
show_status(new_status, inv[fid].kind, quotefn(f))
533
self._write_inventory(inv)
538
# FIXME: this doesn't need to be a branch method
539
def set_inventory(self, new_inventory_list):
540
from bzrlib.inventory import Inventory, InventoryEntry
541
inv = Inventory(self.get_root_id())
542
for path, file_id, parent, kind in new_inventory_list:
543
name = os.path.basename(path)
546
inv.add(InventoryEntry(file_id, name, kind, parent))
547
self._write_inventory(inv)
551
"""Return all unknown files.
553
These are files in the working directory that are not versioned or
554
control files or ignored.
556
>>> b = ScratchBranch(files=['foo', 'foo~'])
557
>>> list(b.unknowns())
560
>>> list(b.unknowns())
563
>>> list(b.unknowns())
566
return self.working_tree().unknowns()
569
def append_revision(self, *revision_ids):
570
from bzrlib.atomicfile import AtomicFile
572
for revision_id in revision_ids:
573
mutter("add {%s} to revision-history" % revision_id)
575
rev_history = self.revision_history()
576
rev_history.extend(revision_ids)
578
f = AtomicFile(self.controlfilename('revision-history'))
580
for rev_id in rev_history:
587
def get_revision_xml(self, revision_id):
588
"""Return XML file object for revision object."""
589
if not revision_id or not isinstance(revision_id, basestring):
590
raise InvalidRevisionId(revision_id)
595
return self.revision_store[revision_id]
597
raise bzrlib.errors.NoSuchRevision(revision_id)
602
def get_revision(self, revision_id):
603
"""Return the Revision object for a named revision"""
604
xml_file = self.get_revision_xml(revision_id)
607
r = unpack_xml(Revision, xml_file)
608
except SyntaxError, e:
609
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
613
assert r.revision_id == revision_id
257
"""Return absolute filename for something in the branch
259
XXX: Robert Collins 20051017 what is this used for? why is it a branch
260
method and not a tree method.
262
raise NotImplementedError(self.abspath)
264
def bind(self, other):
265
"""Bind the local branch the other branch.
267
:param other: The branch to bind to
270
raise errors.UpgradeRequired(self.base)
273
def fetch(self, from_branch, last_revision=None, pb=None):
274
"""Copy revisions from from_branch into this branch.
276
:param from_branch: Where to copy from.
277
:param last_revision: What revision to stop at (None for at the end
279
:param pb: An optional progress bar to use.
281
Returns the copied revision count and the failed revisions in a tuple:
284
if self.base == from_branch.base:
287
nested_pb = ui.ui_factory.nested_progress_bar()
292
from_branch.lock_read()
294
if last_revision is None:
295
pb.update('get source history')
296
last_revision = from_branch.last_revision()
297
if last_revision is None:
298
last_revision = _mod_revision.NULL_REVISION
299
return self.repository.fetch(from_branch.repository,
300
revision_id=last_revision,
303
if nested_pb is not None:
307
def get_bound_location(self):
308
"""Return the URL of the branch we are bound to.
310
Older format branches cannot bind, please be sure to use a metadir
315
def get_old_bound_location(self):
316
"""Return the URL of the branch we used to be bound to
318
raise errors.UpgradeRequired(self.base)
320
def get_commit_builder(self, parents, config=None, timestamp=None,
321
timezone=None, committer=None, revprops=None,
323
"""Obtain a CommitBuilder for this branch.
325
:param parents: Revision ids of the parents of the new revision.
326
:param config: Optional configuration to use.
327
:param timestamp: Optional timestamp recorded for commit.
328
:param timezone: Optional timezone for timestamp.
329
:param committer: Optional committer to set for commit.
330
:param revprops: Optional dictionary of revision properties.
331
:param revision_id: Optional revision id.
335
config = self.get_config()
337
return self.repository.get_commit_builder(self, parents, config,
338
timestamp, timezone, committer, revprops, revision_id)
340
def get_master_branch(self):
341
"""Return the branch we are bound to.
343
:return: Either a Branch, or None
617
347
def get_revision_delta(self, revno):
618
348
"""Return the delta for one revision.
794
489
if stop_revision is None:
795
490
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
492
assert isinstance(stop_revision, int)
493
if stop_revision > other_len:
494
raise errors.NoSuchRevision(self, stop_revision)
799
495
return other_history[self_len:stop_revision]
802
497
def update_revisions(self, other, stop_revision=None):
803
"""Pull in all new revisions from other branch.
805
>>> from bzrlib.commit import commit
806
>>> bzrlib.trace.silent = True
807
>>> br1 = ScratchBranch(files=['foo', 'bar'])
810
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
811
>>> br2 = ScratchBranch()
812
>>> br2.update_revisions(br1)
816
>>> br2.revision_history()
818
>>> br2.update_revisions(br1)
822
>>> br1.text_store.total_size() == br2.text_store.total_size()
825
from bzrlib.progress import ProgressBar
829
pb.update('comparing histories')
830
revision_ids = self.missing_revisions(other, stop_revision)
832
if hasattr(other.revision_store, "prefetch"):
833
other.revision_store.prefetch(revision_ids)
834
if hasattr(other.inventory_store, "prefetch"):
835
inventory_ids = [other.get_revision(r).inventory_id
836
for r in revision_ids]
837
other.inventory_store.prefetch(inventory_ids)
842
for rev_id in revision_ids:
844
pb.update('fetching revision', i, len(revision_ids))
845
rev = other.get_revision(rev_id)
846
revisions.append(rev)
847
inv = other.get_inventory(str(rev.inventory_id))
848
for key, entry in inv.iter_entries():
849
if entry.text_id is None:
851
if entry.text_id not in self.text_store:
852
needed_texts.add(entry.text_id)
856
count = self.text_store.copy_multi(other.text_store, needed_texts)
857
print "Added %d texts." % count
858
inventory_ids = [ f.inventory_id for f in revisions ]
859
count = self.inventory_store.copy_multi(other.inventory_store,
861
print "Added %d inventories." % count
862
revision_ids = [ f.revision_id for f in revisions]
863
count = self.revision_store.copy_multi(other.revision_store,
865
for revision_id in revision_ids:
866
self.append_revision(revision_id)
867
print "Added %d revisions." % count
870
def commit(self, *args, **kw):
871
from bzrlib.commit import commit
872
commit(self, *args, **kw)
875
def lookup_revision(self, revision):
876
"""Return the revision identifier for a given revision information."""
877
revno, info = self.get_revision_info(revision)
880
def get_revision_info(self, revision):
881
"""Return (revno, revision id) for revision identifier.
883
revision can be an integer, in which case it is assumed to be revno (though
884
this will translate negative values into positive ones)
885
revision can also be a string, in which case it is parsed for something like
886
'date:' or 'revid:' etc.
891
try:# Convert to int if possible
892
revision = int(revision)
895
revs = self.revision_history()
896
if isinstance(revision, int):
899
# Mabye we should do this first, but we don't need it if revision == 0
901
revno = len(revs) + revision + 1
904
elif isinstance(revision, basestring):
905
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
906
if revision.startswith(prefix):
907
revno = func(self, revs, revision)
910
raise BzrError('No namespace registered for string: %r' % revision)
912
if revno is None or revno <= 0 or revno > len(revs):
913
raise BzrError("no such revision %s" % revision)
914
return revno, revs[revno-1]
916
def _namespace_revno(self, revs, revision):
917
"""Lookup a revision by revision number"""
918
assert revision.startswith('revno:')
920
return int(revision[6:])
923
REVISION_NAMESPACES['revno:'] = _namespace_revno
925
def _namespace_revid(self, revs, revision):
926
assert revision.startswith('revid:')
928
return revs.index(revision[6:]) + 1
931
REVISION_NAMESPACES['revid:'] = _namespace_revid
933
def _namespace_last(self, revs, revision):
934
assert revision.startswith('last:')
936
offset = int(revision[5:])
941
raise BzrError('You must supply a positive value for --revision last:XXX')
942
return len(revs) - offset + 1
943
REVISION_NAMESPACES['last:'] = _namespace_last
945
def _namespace_tag(self, revs, revision):
946
assert revision.startswith('tag:')
947
raise BzrError('tag: namespace registered, but not implemented.')
948
REVISION_NAMESPACES['tag:'] = _namespace_tag
950
def _namespace_date(self, revs, revision):
951
assert revision.startswith('date:')
953
# Spec for date revisions:
955
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
956
# it can also start with a '+/-/='. '+' says match the first
957
# entry after the given date. '-' is match the first entry before the date
958
# '=' is match the first entry after, but still on the given date.
960
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
961
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
962
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
963
# May 13th, 2005 at 0:00
965
# So the proper way of saying 'give me all entries for today' is:
966
# -r {date:+today}:{date:-tomorrow}
967
# The default is '=' when not supplied
970
if val[:1] in ('+', '-', '='):
971
match_style = val[:1]
974
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
975
if val.lower() == 'yesterday':
976
dt = today - datetime.timedelta(days=1)
977
elif val.lower() == 'today':
979
elif val.lower() == 'tomorrow':
980
dt = today + datetime.timedelta(days=1)
983
# This should be done outside the function to avoid recompiling it.
984
_date_re = re.compile(
985
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
987
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
989
m = _date_re.match(val)
990
if not m or (not m.group('date') and not m.group('time')):
991
raise BzrError('Invalid revision date %r' % revision)
994
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
996
year, month, day = today.year, today.month, today.day
998
hour = int(m.group('hour'))
999
minute = int(m.group('minute'))
1000
if m.group('second'):
1001
second = int(m.group('second'))
1005
hour, minute, second = 0,0,0
1007
dt = datetime.datetime(year=year, month=month, day=day,
1008
hour=hour, minute=minute, second=second)
1012
if match_style == '-':
1014
elif match_style == '=':
1015
last = dt + datetime.timedelta(days=1)
1018
for i in range(len(revs)-1, -1, -1):
1019
r = self.get_revision(revs[i])
1020
# TODO: Handle timezone.
1021
dt = datetime.datetime.fromtimestamp(r.timestamp)
1022
if first >= dt and (last is None or dt >= last):
1025
for i in range(len(revs)):
1026
r = self.get_revision(revs[i])
1027
# TODO: Handle timezone.
1028
dt = datetime.datetime.fromtimestamp(r.timestamp)
1029
if first <= dt and (last is None or dt <= last):
1031
REVISION_NAMESPACES['date:'] = _namespace_date
1033
def revision_tree(self, revision_id):
1034
"""Return Tree for a revision on this branch.
1036
`revision_id` may be None for the null revision, in which case
1037
an `EmptyTree` is returned."""
1038
# TODO: refactor this to use an existing revision object
1039
# so we don't need to read it in twice.
1040
if revision_id == None:
1043
inv = self.get_revision_inventory(revision_id)
1044
return RevisionTree(self.text_store, inv)
1047
def working_tree(self):
1048
"""Return a `Tree` for the working copy."""
1049
from workingtree import WorkingTree
1050
return WorkingTree(self.base, self.read_working_inventory())
498
"""Pull in new perfect-fit revisions.
500
:param other: Another Branch to pull from
501
:param stop_revision: Updated until the given revision
504
raise NotImplementedError(self.update_revisions)
506
def revision_id_to_revno(self, revision_id):
507
"""Given a revision id, return its revno"""
508
if revision_id is None:
510
revision_id = osutils.safe_revision_id(revision_id)
511
history = self.revision_history()
513
return history.index(revision_id) + 1
515
raise errors.NoSuchRevision(self, revision_id)
517
def get_rev_id(self, revno, history=None):
518
"""Find the revision id of the specified revno."""
522
history = self.revision_history()
523
if revno <= 0 or revno > len(history):
524
raise errors.NoSuchRevision(self, revno)
525
return history[revno - 1]
527
def pull(self, source, overwrite=False, stop_revision=None):
528
"""Mirror source into this branch.
530
This branch is considered to be 'local', having low latency.
532
:returns: PullResult instance
534
raise NotImplementedError(self.pull)
536
def push(self, target, overwrite=False, stop_revision=None):
537
"""Mirror this branch into target.
539
This branch is considered to be 'local', having low latency.
541
raise NotImplementedError(self.push)
1053
543
def basis_tree(self):
1054
"""Return `Tree` object for last revision.
1056
If there are no revisions yet, return an `EmptyTree`.
1058
r = self.last_patch()
1062
return RevisionTree(self.text_store, self.get_revision_inventory(r))
544
"""Return `Tree` object for last revision."""
545
return self.repository.revision_tree(self.last_revision())
1066
547
def rename_one(self, from_rel, to_rel):
1067
548
"""Rename one file.
1069
550
This can change the directory or the filename or both.
1073
tree = self.working_tree()
1074
inv = tree.inventory
1075
if not tree.has_filename(from_rel):
1076
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1077
if tree.has_filename(to_rel):
1078
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1080
file_id = inv.path2id(from_rel)
1082
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1084
if inv.path2id(to_rel):
1085
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1087
to_dir, to_tail = os.path.split(to_rel)
1088
to_dir_id = inv.path2id(to_dir)
1089
if to_dir_id == None and to_dir != '':
1090
raise BzrError("can't determine destination directory id for %r" % to_dir)
1092
mutter("rename_one:")
1093
mutter(" file_id {%s}" % file_id)
1094
mutter(" from_rel %r" % from_rel)
1095
mutter(" to_rel %r" % to_rel)
1096
mutter(" to_dir %r" % to_dir)
1097
mutter(" to_dir_id {%s}" % to_dir_id)
1099
inv.rename(file_id, to_dir_id, to_tail)
1101
print "%s => %s" % (from_rel, to_rel)
1103
from_abs = self.abspath(from_rel)
1104
to_abs = self.abspath(to_rel)
1106
os.rename(from_abs, to_abs)
1108
raise BzrError("failed to rename %r to %r: %s"
1109
% (from_abs, to_abs, e[1]),
1110
["rename rolled back"])
1112
self._write_inventory(inv)
552
raise NotImplementedError(self.rename_one)
1117
554
def move(self, from_paths, to_name):
1118
555
"""Rename files.
1125
562
Note that to_name is only the last component of the new name;
1126
563
this doesn't change the directory.
1130
## TODO: Option to move IDs only
1131
assert not isinstance(from_paths, basestring)
1132
tree = self.working_tree()
1133
inv = tree.inventory
1134
to_abs = self.abspath(to_name)
1135
if not isdir(to_abs):
1136
raise BzrError("destination %r is not a directory" % to_abs)
1137
if not tree.has_filename(to_name):
1138
raise BzrError("destination %r not in working directory" % to_abs)
1139
to_dir_id = inv.path2id(to_name)
1140
if to_dir_id == None and to_name != '':
1141
raise BzrError("destination %r is not a versioned directory" % to_name)
1142
to_dir_ie = inv[to_dir_id]
1143
if to_dir_ie.kind not in ('directory', 'root_directory'):
1144
raise BzrError("destination %r is not a directory" % to_abs)
1146
to_idpath = inv.get_idpath(to_dir_id)
1148
for f in from_paths:
1149
if not tree.has_filename(f):
1150
raise BzrError("%r does not exist in working tree" % f)
1151
f_id = inv.path2id(f)
1153
raise BzrError("%r is not versioned" % f)
1154
name_tail = splitpath(f)[-1]
1155
dest_path = appendpath(to_name, name_tail)
1156
if tree.has_filename(dest_path):
1157
raise BzrError("destination %r already exists" % dest_path)
1158
if f_id in to_idpath:
1159
raise BzrError("can't move %r to a subdirectory of itself" % f)
1161
# OK, so there's a race here, it's possible that someone will
1162
# create a file in this interval and then the rename might be
1163
# left half-done. But we should have caught most problems.
1165
for f in from_paths:
1166
name_tail = splitpath(f)[-1]
1167
dest_path = appendpath(to_name, name_tail)
1168
print "%s => %s" % (f, dest_path)
1169
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1171
os.rename(self.abspath(f), self.abspath(dest_path))
1173
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1174
["rename rolled back"])
1176
self._write_inventory(inv)
1181
def revert(self, filenames, old_tree=None, backups=True):
1182
"""Restore selected files to the versions from a previous tree.
1185
If true (default) backups are made of files before
1188
from bzrlib.errors import NotVersionedError, BzrError
1189
from bzrlib.atomicfile import AtomicFile
1190
from bzrlib.osutils import backup_file
1192
inv = self.read_working_inventory()
1193
if old_tree is None:
1194
old_tree = self.basis_tree()
1195
old_inv = old_tree.inventory
1198
for fn in filenames:
1199
file_id = inv.path2id(fn)
1201
raise NotVersionedError("not a versioned file", fn)
1202
if not old_inv.has_id(file_id):
1203
raise BzrError("file not present in old tree", fn, file_id)
1204
nids.append((fn, file_id))
1206
# TODO: Rename back if it was previously at a different location
1208
# TODO: If given a directory, restore the entire contents from
1209
# the previous version.
1211
# TODO: Make a backup to a temporary file.
1213
# TODO: If the file previously didn't exist, delete it?
1214
for fn, file_id in nids:
1217
f = AtomicFile(fn, 'wb')
1219
f.write(old_tree.get_file(file_id).read())
1225
def pending_merges(self):
1226
"""Return a list of pending merges.
1228
These are revisions that have been merged into the working
1229
directory but not yet committed.
1231
cfn = self.controlfilename('pending-merges')
1232
if not os.path.exists(cfn):
1235
for l in self.controlfile('pending-merges', 'r').readlines():
1236
p.append(l.rstrip('\n'))
1240
def add_pending_merge(self, revision_id):
1241
from bzrlib.revision import validate_revision_id
1243
validate_revision_id(revision_id)
1245
p = self.pending_merges()
1246
if revision_id in p:
1248
p.append(revision_id)
1249
self.set_pending_merges(p)
1252
def set_pending_merges(self, rev_list):
1253
from bzrlib.atomicfile import AtomicFile
1256
f = AtomicFile(self.controlfilename('pending-merges'))
1268
class ScratchBranch(Branch):
1269
"""Special test class: a branch that cleans up after itself.
1271
>>> b = ScratchBranch()
1279
def __init__(self, files=[], dirs=[], base=None):
1280
"""Make a test branch.
1282
This creates a temporary directory and runs init-tree in it.
1284
If any files are listed, they are created in the working copy.
1286
from tempfile import mkdtemp
1291
Branch.__init__(self, base, init=init)
1293
os.mkdir(self.abspath(d))
1296
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1301
>>> orig = ScratchBranch(files=["file1", "file2"])
1302
>>> clone = orig.clone()
1303
>>> os.path.samefile(orig.base, clone.base)
1305
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1308
from shutil import copytree
1309
from tempfile import mkdtemp
1312
copytree(self.base, base, symlinks=True)
1313
return ScratchBranch(base=base)
1319
"""Destroy the test branch, removing the scratch directory."""
1320
from shutil import rmtree
1323
mutter("delete ScratchBranch %s" % self.base)
1326
# Work around for shutil.rmtree failing on Windows when
1327
# readonly files are encountered
1328
mutter("hit exception in destroying ScratchBranch: %s" % e)
1329
for root, dirs, files in os.walk(self.base, topdown=False):
1331
os.chmod(os.path.join(root, name), 0700)
1337
######################################################################
1341
def is_control_file(filename):
1342
## FIXME: better check
1343
filename = os.path.normpath(filename)
1344
while filename != '':
1345
head, tail = os.path.split(filename)
1346
## mutter('check %r for control file' % ((head, tail), ))
1347
if tail == bzrlib.BZRDIR:
565
This returns a list of (from_path, to_path) pairs for each
568
raise NotImplementedError(self.move)
570
def get_parent(self):
571
"""Return the parent location of the branch.
573
This is the default location for push/pull/missing. The usual
574
pattern is that the user can override it by specifying a
577
raise NotImplementedError(self.get_parent)
579
def _set_config_location(self, name, url, config=None,
580
make_relative=False):
582
config = self.get_config()
586
url = urlutils.relative_url(self.base, url)
587
config.set_user_option(name, url, warn_masked=True)
589
def _get_config_location(self, name, config=None):
591
config = self.get_config()
592
location = config.get_user_option(name)
597
def get_submit_branch(self):
598
"""Return the submit location of the branch.
600
This is the default location for bundle. The usual
601
pattern is that the user can override it by specifying a
604
return self.get_config().get_user_option('submit_branch')
606
def set_submit_branch(self, location):
607
"""Return the submit location of the branch.
609
This is the default location for bundle. The usual
610
pattern is that the user can override it by specifying a
613
self.get_config().set_user_option('submit_branch', location,
616
def get_public_branch(self):
617
"""Return the public location of the branch.
619
This is is used by merge directives.
621
return self._get_config_location('public_branch')
623
def set_public_branch(self, location):
624
"""Return the submit location of the branch.
626
This is the default location for bundle. The usual
627
pattern is that the user can override it by specifying a
630
self._set_config_location('public_branch', location)
632
def get_push_location(self):
633
"""Return the None or the location to push this branch to."""
634
push_loc = self.get_config().get_user_option('push_location')
637
def set_push_location(self, location):
638
"""Set a new push location for this branch."""
639
raise NotImplementedError(self.set_push_location)
641
def set_parent(self, url):
642
raise NotImplementedError(self.set_parent)
646
"""Synchronise this branch with the master branch if any.
648
:return: None or the last_revision pivoted out during the update.
652
def check_revno(self, revno):
654
Check whether a revno corresponds to any revision.
655
Zero (the NULL revision) is considered valid.
658
self.check_real_revno(revno)
660
def check_real_revno(self, revno):
662
Check whether a revno corresponds to a real revision.
663
Zero (the NULL revision) is considered invalid
665
if revno < 1 or revno > self.revno():
666
raise InvalidRevisionNumber(revno)
669
def clone(self, to_bzrdir, revision_id=None):
670
"""Clone this branch into to_bzrdir preserving all semantic values.
672
revision_id: if not None, the revision history in the new branch will
673
be truncated to end with revision_id.
675
result = self._format.initialize(to_bzrdir)
676
self.copy_content_into(result, revision_id=revision_id)
680
def sprout(self, to_bzrdir, revision_id=None):
681
"""Create a new line of development from the branch, into to_bzrdir.
683
revision_id: if not None, the revision history in the new branch will
684
be truncated to end with revision_id.
686
result = self._format.initialize(to_bzrdir)
687
self.copy_content_into(result, revision_id=revision_id)
688
result.set_parent(self.bzrdir.root_transport.base)
691
def _synchronize_history(self, destination, revision_id):
692
"""Synchronize last revision and revision history between branches.
694
This version is most efficient when the destination is also a
695
BzrBranch5, but works for BzrBranch6 as long as the revision
696
history is the true lefthand parent history, and all of the revisions
697
are in the destination's repository. If not, set_revision_history
700
:param destination: The branch to copy the history into
701
:param revision_id: The revision-id to truncate history at. May
702
be None to copy complete history.
704
new_history = self.revision_history()
705
if revision_id is not None:
706
revision_id = osutils.safe_revision_id(revision_id)
708
new_history = new_history[:new_history.index(revision_id) + 1]
710
rev = self.repository.get_revision(revision_id)
711
new_history = rev.get_history(self.repository)[1:]
712
destination.set_revision_history(new_history)
715
def copy_content_into(self, destination, revision_id=None):
716
"""Copy the content of self into destination.
718
revision_id: if not None, the revision history in the new branch will
719
be truncated to end with revision_id.
721
self._synchronize_history(destination, revision_id)
723
parent = self.get_parent()
724
except errors.InaccessibleParent, e:
725
mutter('parent was not accessible to copy: %s', e)
728
destination.set_parent(parent)
729
self.tags.merge_to(destination.tags)
733
"""Check consistency of the branch.
735
In particular this checks that revisions given in the revision-history
736
do actually match up in the revision graph, and that they're all
737
present in the repository.
739
Callers will typically also want to check the repository.
741
:return: A BranchCheckResult.
743
mainline_parent_id = None
744
for revision_id in self.revision_history():
746
revision = self.repository.get_revision(revision_id)
747
except errors.NoSuchRevision, e:
748
raise errors.BzrCheckError("mainline revision {%s} not in repository"
750
# In general the first entry on the revision history has no parents.
751
# But it's not illegal for it to have parents listed; this can happen
752
# in imports from Arch when the parents weren't reachable.
753
if mainline_parent_id is not None:
754
if mainline_parent_id not in revision.parent_ids:
755
raise errors.BzrCheckError("previous revision {%s} not listed among "
757
% (mainline_parent_id, revision_id))
758
mainline_parent_id = revision_id
759
return BranchCheckResult(self)
761
def _get_checkout_format(self):
762
"""Return the most suitable metadir for a checkout of this branch.
763
Weaves are used if this branch's repository uses weaves.
765
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
766
from bzrlib.repofmt import weaverepo
767
format = bzrdir.BzrDirMetaFormat1()
768
format.repository_format = weaverepo.RepositoryFormat7()
770
format = self.repository.bzrdir.checkout_metadir()
771
format.set_branch_format(self._format)
774
def create_checkout(self, to_location, revision_id=None,
776
"""Create a checkout of a branch.
778
:param to_location: The url to produce the checkout at
779
:param revision_id: The revision to check out
780
:param lightweight: If True, produce a lightweight checkout, otherwise,
781
produce a bound branch (heavyweight checkout)
782
:return: The tree of the created checkout
784
t = transport.get_transport(to_location)
787
format = self._get_checkout_format()
788
checkout = format.initialize_on_transport(t)
789
BranchReferenceFormat().initialize(checkout, self)
791
format = self._get_checkout_format()
792
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
793
to_location, force_new_tree=False, format=format)
794
checkout = checkout_branch.bzrdir
795
checkout_branch.bind(self)
796
# pull up to the specified revision_id to set the initial
797
# branch tip correctly, and seed it with history.
798
checkout_branch.pull(self, stop_revision=revision_id)
799
tree = checkout.create_workingtree(revision_id)
800
basis_tree = tree.basis_tree()
801
basis_tree.lock_read()
803
for path, file_id in basis_tree.iter_references():
804
reference_parent = self.reference_parent(file_id, path)
805
reference_parent.create_checkout(tree.abspath(path),
806
basis_tree.get_reference_revision(file_id, path),
812
def reference_parent(self, file_id, path):
813
"""Return the parent branch for a tree-reference file_id
814
:param file_id: The file_id of the tree reference
815
:param path: The path of the file_id in the tree
816
:return: A branch associated with the file_id
818
# FIXME should provide multiple branches, based on config
819
return Branch.open(self.bzrdir.root_transport.clone(path).base)
821
def supports_tags(self):
822
return self._format.supports_tags()
825
class BranchFormat(object):
826
"""An encapsulation of the initialization and open routines for a format.
828
Formats provide three things:
829
* An initialization routine,
833
Formats are placed in an dict by their format string for reference
834
during branch opening. Its not required that these be instances, they
835
can be classes themselves with class methods - it simply depends on
836
whether state is needed for a given format or not.
838
Once a format is deprecated, just deprecate the initialize and open
839
methods on the format class. Do not deprecate the object, as the
840
object will be created every time regardless.
843
_default_format = None
844
"""The default format used for new branches."""
847
"""The known formats."""
849
def __eq__(self, other):
850
return self.__class__ is other.__class__
852
def __ne__(self, other):
853
return not (self == other)
856
def find_format(klass, a_bzrdir):
857
"""Return the format for the branch object in a_bzrdir."""
859
transport = a_bzrdir.get_branch_transport(None)
860
format_string = transport.get("format").read()
861
return klass._formats[format_string]
863
raise NotBranchError(path=transport.base)
865
raise errors.UnknownFormatError(format=format_string)
868
def get_default_format(klass):
869
"""Return the current default format."""
870
return klass._default_format
872
def get_reference(self, a_bzrdir):
873
"""Get the target reference of the branch in a_bzrdir.
875
format probing must have been completed before calling
876
this method - it is assumed that the format of the branch
877
in a_bzrdir is correct.
879
:param a_bzrdir: The bzrdir to get the branch data from.
880
:return: None if the branch is not a reference branch.
884
def get_format_string(self):
885
"""Return the ASCII format string that identifies this format."""
886
raise NotImplementedError(self.get_format_string)
888
def get_format_description(self):
889
"""Return the short format description for this format."""
890
raise NotImplementedError(self.get_format_description)
892
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
894
"""Initialize a branch in a bzrdir, with specified files
896
:param a_bzrdir: The bzrdir to initialize the branch in
897
:param utf8_files: The files to create as a list of
898
(filename, content) tuples
899
:param set_format: If True, set the format with
900
self.get_format_string. (BzrBranch4 has its format set
902
:return: a branch in this format
904
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
905
branch_transport = a_bzrdir.get_branch_transport(self)
907
'metadir': ('lock', lockdir.LockDir),
908
'branch4': ('branch-lock', lockable_files.TransportLock),
910
lock_name, lock_class = lock_map[lock_type]
911
control_files = lockable_files.LockableFiles(branch_transport,
912
lock_name, lock_class)
913
control_files.create_lock()
914
control_files.lock_write()
916
control_files.put_utf8('format', self.get_format_string())
918
for file, content in utf8_files:
919
control_files.put_utf8(file, content)
921
control_files.unlock()
922
return self.open(a_bzrdir, _found=True)
924
def initialize(self, a_bzrdir):
925
"""Create a branch of this format in a_bzrdir."""
926
raise NotImplementedError(self.initialize)
928
def is_supported(self):
929
"""Is this format supported?
931
Supported formats can be initialized and opened.
932
Unsupported formats may not support initialization or committing or
933
some other features depending on the reason for not being supported.
937
def open(self, a_bzrdir, _found=False):
938
"""Return the branch object for a_bzrdir
940
_found is a private parameter, do not use it. It is used to indicate
941
if format probing has already be done.
943
raise NotImplementedError(self.open)
946
def register_format(klass, format):
947
klass._formats[format.get_format_string()] = format
950
def set_default_format(klass, format):
951
klass._default_format = format
954
def unregister_format(klass, format):
955
assert klass._formats[format.get_format_string()] is format
956
del klass._formats[format.get_format_string()]
959
return self.get_format_string().rstrip()
961
def supports_tags(self):
962
"""True if this format supports tags stored in the branch"""
963
return False # by default
965
# XXX: Probably doesn't really belong here -- mbp 20070212
966
def _initialize_control_files(self, a_bzrdir, utf8_files, lock_filename,
968
branch_transport = a_bzrdir.get_branch_transport(self)
969
control_files = lockable_files.LockableFiles(branch_transport,
970
lock_filename, lock_class)
971
control_files.create_lock()
972
control_files.lock_write()
974
for filename, content in utf8_files:
975
control_files.put_utf8(filename, content)
977
control_files.unlock()
980
class BranchHooks(Hooks):
981
"""A dictionary mapping hook name to a list of callables for branch hooks.
983
e.g. ['set_rh'] Is the list of items to be called when the
984
set_revision_history function is invoked.
988
"""Create the default hooks.
990
These are all empty initially, because by default nothing should get
994
# Introduced in 0.15:
995
# invoked whenever the revision history has been set
996
# with set_revision_history. The api signature is
997
# (branch, revision_history), and the branch will
1000
# invoked after a push operation completes.
1001
# the api signature is
1003
# containing the members
1004
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1005
# where local is the local target branch or None, master is the target
1006
# master branch, and the rest should be self explanatory. The source
1007
# is read locked and the target branches write locked. Source will
1008
# be the local low-latency branch.
1009
self['post_push'] = []
1010
# invoked after a pull operation completes.
1011
# the api signature is
1013
# containing the members
1014
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1015
# where local is the local branch or None, master is the target
1016
# master branch, and the rest should be self explanatory. The source
1017
# is read locked and the target branches write locked. The local
1018
# branch is the low-latency branch.
1019
self['post_pull'] = []
1020
# invoked after a commit operation completes.
1021
# the api signature is
1022
# (local, master, old_revno, old_revid, new_revno, new_revid)
1023
# old_revid is NULL_REVISION for the first commit to a branch.
1024
self['post_commit'] = []
1025
# invoked after a uncommit operation completes.
1026
# the api signature is
1027
# (local, master, old_revno, old_revid, new_revno, new_revid) where
1028
# local is the local branch or None, master is the target branch,
1029
# and an empty branch recieves new_revno of 0, new_revid of None.
1030
self['post_uncommit'] = []
1033
# install the default hooks into the Branch class.
1034
Branch.hooks = BranchHooks()
1037
class BzrBranchFormat4(BranchFormat):
1038
"""Bzr branch format 4.
1041
- a revision-history file.
1042
- a branch-lock lock file [ to be shared with the bzrdir ]
1045
def get_format_description(self):
1046
"""See BranchFormat.get_format_description()."""
1047
return "Branch format 4"
1049
def initialize(self, a_bzrdir):
1050
"""Create a branch of this format in a_bzrdir."""
1051
utf8_files = [('revision-history', ''),
1052
('branch-name', ''),
1054
return self._initialize_helper(a_bzrdir, utf8_files,
1055
lock_type='branch4', set_format=False)
1058
super(BzrBranchFormat4, self).__init__()
1059
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1061
def open(self, a_bzrdir, _found=False):
1062
"""Return the branch object for a_bzrdir
1064
_found is a private parameter, do not use it. It is used to indicate
1065
if format probing has already be done.
1068
# we are being called directly and must probe.
1069
raise NotImplementedError
1070
return BzrBranch(_format=self,
1071
_control_files=a_bzrdir._control_files,
1073
_repository=a_bzrdir.open_repository())
1076
return "Bazaar-NG branch format 4"
1079
class BzrBranchFormat5(BranchFormat):
1080
"""Bzr branch format 5.
1083
- a revision-history file.
1085
- a lock dir guarding the branch itself
1086
- all of this stored in a branch/ subdirectory
1087
- works with shared repositories.
1089
This format is new in bzr 0.8.
1092
def get_format_string(self):
1093
"""See BranchFormat.get_format_string()."""
1094
return "Bazaar-NG branch format 5\n"
1096
def get_format_description(self):
1097
"""See BranchFormat.get_format_description()."""
1098
return "Branch format 5"
1100
def initialize(self, a_bzrdir):
1101
"""Create a branch of this format in a_bzrdir."""
1102
utf8_files = [('revision-history', ''),
1103
('branch-name', ''),
1105
return self._initialize_helper(a_bzrdir, utf8_files)
1108
super(BzrBranchFormat5, self).__init__()
1109
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1111
def open(self, a_bzrdir, _found=False):
1112
"""Return the branch object for a_bzrdir
1114
_found is a private parameter, do not use it. It is used to indicate
1115
if format probing has already be done.
1118
format = BranchFormat.find_format(a_bzrdir)
1119
assert format.__class__ == self.__class__
1121
transport = a_bzrdir.get_branch_transport(None)
1122
control_files = lockable_files.LockableFiles(transport, 'lock',
1124
return BzrBranch5(_format=self,
1125
_control_files=control_files,
1127
_repository=a_bzrdir.find_repository())
1129
raise NotBranchError(path=transport.base)
1132
class BzrBranchFormat6(BzrBranchFormat5):
1133
"""Branch format with last-revision
1135
Unlike previous formats, this has no explicit revision history. Instead,
1136
this just stores the last-revision, and the left-hand history leading
1137
up to there is the history.
1139
This format was introduced in bzr 0.15
1142
def get_format_string(self):
1143
"""See BranchFormat.get_format_string()."""
1144
return "Bazaar Branch Format 6 (bzr 0.15)\n"
1146
def get_format_description(self):
1147
"""See BranchFormat.get_format_description()."""
1148
return "Branch format 6"
1150
def initialize(self, a_bzrdir):
1151
"""Create a branch of this format in a_bzrdir."""
1152
utf8_files = [('last-revision', '0 null:\n'),
1153
('branch-name', ''),
1154
('branch.conf', ''),
1157
return self._initialize_helper(a_bzrdir, utf8_files)
1159
def open(self, a_bzrdir, _found=False):
1160
"""Return the branch object for a_bzrdir
1162
_found is a private parameter, do not use it. It is used to indicate
1163
if format probing has already be done.
1166
format = BranchFormat.find_format(a_bzrdir)
1167
assert format.__class__ == self.__class__
1168
transport = a_bzrdir.get_branch_transport(None)
1169
control_files = lockable_files.LockableFiles(transport, 'lock',
1171
return BzrBranch6(_format=self,
1172
_control_files=control_files,
1174
_repository=a_bzrdir.find_repository())
1176
def supports_tags(self):
1180
class BranchReferenceFormat(BranchFormat):
1181
"""Bzr branch reference format.
1183
Branch references are used in implementing checkouts, they
1184
act as an alias to the real branch which is at some other url.
1191
def get_format_string(self):
1192
"""See BranchFormat.get_format_string()."""
1193
return "Bazaar-NG Branch Reference Format 1\n"
1195
def get_format_description(self):
1196
"""See BranchFormat.get_format_description()."""
1197
return "Checkout reference format 1"
1199
def get_reference(self, a_bzrdir):
1200
"""See BranchFormat.get_reference()."""
1201
transport = a_bzrdir.get_branch_transport(None)
1202
return transport.get('location').read()
1204
def initialize(self, a_bzrdir, target_branch=None):
1205
"""Create a branch of this format in a_bzrdir."""
1206
if target_branch is None:
1207
# this format does not implement branch itself, thus the implicit
1208
# creation contract must see it as uninitializable
1209
raise errors.UninitializableFormat(self)
1210
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1211
branch_transport = a_bzrdir.get_branch_transport(self)
1212
branch_transport.put_bytes('location',
1213
target_branch.bzrdir.root_transport.base)
1214
branch_transport.put_bytes('format', self.get_format_string())
1215
return self.open(a_bzrdir, _found=True)
1218
super(BranchReferenceFormat, self).__init__()
1219
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1221
def _make_reference_clone_function(format, a_branch):
1222
"""Create a clone() routine for a branch dynamically."""
1223
def clone(to_bzrdir, revision_id=None):
1224
"""See Branch.clone()."""
1225
return format.initialize(to_bzrdir, a_branch)
1226
# cannot obey revision_id limits when cloning a reference ...
1227
# FIXME RBC 20060210 either nuke revision_id for clone, or
1228
# emit some sort of warning/error to the caller ?!
1231
def open(self, a_bzrdir, _found=False, location=None):
1232
"""Return the branch that the branch reference in a_bzrdir points at.
1234
_found is a private parameter, do not use it. It is used to indicate
1235
if format probing has already be done.
1238
format = BranchFormat.find_format(a_bzrdir)
1239
assert format.__class__ == self.__class__
1240
if location is None:
1241
location = self.get_reference(a_bzrdir)
1242
real_bzrdir = bzrdir.BzrDir.open(location)
1243
result = real_bzrdir.open_branch()
1244
# this changes the behaviour of result.clone to create a new reference
1245
# rather than a copy of the content of the branch.
1246
# I did not use a proxy object because that needs much more extensive
1247
# testing, and we are only changing one behaviour at the moment.
1248
# If we decide to alter more behaviours - i.e. the implicit nickname
1249
# then this should be refactored to introduce a tested proxy branch
1250
# and a subclass of that for use in overriding clone() and ....
1252
result.clone = self._make_reference_clone_function(result)
1256
# formats which have no format string are not discoverable
1257
# and not independently creatable, so are not registered.
1258
__default_format = BzrBranchFormat5()
1259
BranchFormat.register_format(__default_format)
1260
BranchFormat.register_format(BranchReferenceFormat())
1261
BranchFormat.register_format(BzrBranchFormat6())
1262
BranchFormat.set_default_format(__default_format)
1263
_legacy_formats = [BzrBranchFormat4(),
1266
class BzrBranch(Branch):
1267
"""A branch stored in the actual filesystem.
1269
Note that it's "local" in the context of the filesystem; it doesn't
1270
really matter if it's on an nfs/smb/afs/coda/... share, as long as
1271
it's writable, and can be accessed via the normal filesystem API.
1274
def __init__(self, _format=None,
1275
_control_files=None, a_bzrdir=None, _repository=None):
1276
"""Create new branch object at a particular location."""
1277
Branch.__init__(self)
1278
if a_bzrdir is None:
1279
raise ValueError('a_bzrdir must be supplied')
1281
self.bzrdir = a_bzrdir
1282
# self._transport used to point to the directory containing the
1283
# control directory, but was not used - now it's just the transport
1284
# for the branch control files. mbp 20070212
1285
self._base = self.bzrdir.transport.clone('..').base
1286
self._format = _format
1287
if _control_files is None:
1288
raise ValueError('BzrBranch _control_files is None')
1289
self.control_files = _control_files
1290
self._transport = _control_files._transport
1291
self.repository = _repository
1294
return '%s(%r)' % (self.__class__.__name__, self.base)
1298
def _get_base(self):
1299
"""Returns the directory containing the control directory."""
1302
base = property(_get_base, doc="The URL for the root of this branch.")
1304
def abspath(self, name):
1305
"""See Branch.abspath."""
1306
return self.control_files._transport.abspath(name)
1309
@deprecated_method(zero_sixteen)
1311
def get_root_id(self):
1312
"""See Branch.get_root_id."""
1313
tree = self.repository.revision_tree(self.last_revision())
1314
return tree.inventory.root.file_id
1316
def is_locked(self):
1317
return self.control_files.is_locked()
1319
def lock_write(self, token=None):
1320
repo_token = self.repository.lock_write()
1322
token = self.control_files.lock_write(token=token)
1324
self.repository.unlock()
1328
def lock_read(self):
1329
self.repository.lock_read()
1331
self.control_files.lock_read()
1333
self.repository.unlock()
1337
# TODO: test for failed two phase locks. This is known broken.
1339
self.control_files.unlock()
1341
self.repository.unlock()
1342
if not self.control_files.is_locked():
1343
# we just released the lock
1344
self._clear_cached_state()
1346
def peek_lock_mode(self):
1347
if self.control_files._lock_count == 0:
1350
return self.control_files._lock_mode
1352
def get_physical_lock_status(self):
1353
return self.control_files.get_physical_lock_status()
1356
def print_file(self, file, revision_id):
1357
"""See Branch.print_file."""
1358
return self.repository.print_file(file, revision_id)
1361
def append_revision(self, *revision_ids):
1362
"""See Branch.append_revision."""
1363
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1364
for revision_id in revision_ids:
1365
_mod_revision.check_not_reserved_id(revision_id)
1366
mutter("add {%s} to revision-history" % revision_id)
1367
rev_history = self.revision_history()
1368
rev_history.extend(revision_ids)
1369
self.set_revision_history(rev_history)
1371
def _write_revision_history(self, history):
1372
"""Factored out of set_revision_history.
1374
This performs the actual writing to disk.
1375
It is intended to be called by BzrBranch5.set_revision_history."""
1376
self.control_files.put_bytes(
1377
'revision-history', '\n'.join(history))
1380
def set_revision_history(self, rev_history):
1381
"""See Branch.set_revision_history."""
1382
rev_history = [osutils.safe_revision_id(r) for r in rev_history]
1383
self._clear_cached_state()
1384
self._write_revision_history(rev_history)
1385
self._cache_revision_history(rev_history)
1386
for hook in Branch.hooks['set_rh']:
1387
hook(self, rev_history)
1390
def set_last_revision_info(self, revno, revision_id):
1391
revision_id = osutils.safe_revision_id(revision_id)
1392
history = self._lefthand_history(revision_id)
1393
assert len(history) == revno, '%d != %d' % (len(history), revno)
1394
self.set_revision_history(history)
1396
def _gen_revision_history(self):
1397
history = self.control_files.get('revision-history').read().split('\n')
1398
if history[-1:] == ['']:
1399
# There shouldn't be a trailing newline, but just in case.
1403
def _lefthand_history(self, revision_id, last_rev=None,
1405
# stop_revision must be a descendant of last_revision
1406
stop_graph = self.repository.get_revision_graph(revision_id)
1407
if last_rev is not None and last_rev not in stop_graph:
1408
# our previous tip is not merged into stop_revision
1409
raise errors.DivergedBranches(self, other_branch)
1410
# make a new revision history from the graph
1411
current_rev_id = revision_id
1413
while current_rev_id not in (None, _mod_revision.NULL_REVISION):
1414
new_history.append(current_rev_id)
1415
current_rev_id_parents = stop_graph[current_rev_id]
1417
current_rev_id = current_rev_id_parents[0]
1419
current_rev_id = None
1420
new_history.reverse()
1424
def generate_revision_history(self, revision_id, last_rev=None,
1426
"""Create a new revision history that will finish with revision_id.
1428
:param revision_id: the new tip to use.
1429
:param last_rev: The previous last_revision. If not None, then this
1430
must be a ancestory of revision_id, or DivergedBranches is raised.
1431
:param other_branch: The other branch that DivergedBranches should
1432
raise with respect to.
1434
revision_id = osutils.safe_revision_id(revision_id)
1435
self.set_revision_history(self._lefthand_history(revision_id,
1436
last_rev, other_branch))
1439
def update_revisions(self, other, stop_revision=None):
1440
"""See Branch.update_revisions."""
1443
if stop_revision is None:
1444
stop_revision = other.last_revision()
1445
if stop_revision is None:
1446
# if there are no commits, we're done.
1449
stop_revision = osutils.safe_revision_id(stop_revision)
1450
# whats the current last revision, before we fetch [and change it
1452
last_rev = self.last_revision()
1453
# we fetch here regardless of whether we need to so that we pickup
1455
self.fetch(other, stop_revision)
1456
my_ancestry = self.repository.get_ancestry(last_rev,
1458
if stop_revision in my_ancestry:
1459
# last_revision is a descendant of stop_revision
1461
self.generate_revision_history(stop_revision, last_rev=last_rev,
1466
def basis_tree(self):
1467
"""See Branch.basis_tree."""
1468
return self.repository.revision_tree(self.last_revision())
1470
@deprecated_method(zero_eight)
1471
def working_tree(self):
1472
"""Create a Working tree object for this branch."""
1474
from bzrlib.transport.local import LocalTransport
1475
if (self.base.find('://') != -1 or
1476
not isinstance(self._transport, LocalTransport)):
1477
raise NoWorkingTree(self.base)
1478
return self.bzrdir.open_workingtree()
1481
def pull(self, source, overwrite=False, stop_revision=None,
1482
_hook_master=None, run_hooks=True):
1485
:param _hook_master: Private parameter - set the branch to
1486
be supplied as the master to push hooks.
1487
:param run_hooks: Private parameter - if false, this branch
1488
is being called because it's the master of the primary branch,
1489
so it should not run its hooks.
1491
result = PullResult()
1492
result.source_branch = source
1493
result.target_branch = self
1496
result.old_revno, result.old_revid = self.last_revision_info()
1498
self.update_revisions(source, stop_revision)
1499
except DivergedBranches:
1503
if stop_revision is None:
1504
stop_revision = source.last_revision()
1505
self.generate_revision_history(stop_revision)
1506
result.tag_conflicts = source.tags.merge_to(self.tags)
1507
result.new_revno, result.new_revid = self.last_revision_info()
1509
result.master_branch = _hook_master
1510
result.local_branch = self
1512
result.master_branch = self
1513
result.local_branch = None
1515
for hook in Branch.hooks['post_pull']:
1521
def _get_parent_location(self):
1522
_locs = ['parent', 'pull', 'x-pull']
1525
return self.control_files.get(l).read().strip('\n')
1531
def push(self, target, overwrite=False, stop_revision=None,
1532
_override_hook_source_branch=None):
1535
This is the basic concrete implementation of push()
1537
:param _override_hook_source_branch: If specified, run
1538
the hooks passing this Branch as the source, rather than self.
1539
This is for use of RemoteBranch, where push is delegated to the
1540
underlying vfs-based Branch.
1542
# TODO: Public option to disable running hooks - should be trivial but
1546
result = self._push_with_bound_branches(target, overwrite,
1548
_override_hook_source_branch=_override_hook_source_branch)
1553
def _push_with_bound_branches(self, target, overwrite,
1555
_override_hook_source_branch=None):
1556
"""Push from self into target, and into target's master if any.
1558
This is on the base BzrBranch class even though it doesn't support
1559
bound branches because the *target* might be bound.
1562
if _override_hook_source_branch:
1563
result.source_branch = _override_hook_source_branch
1564
for hook in Branch.hooks['post_push']:
1567
bound_location = target.get_bound_location()
1568
if bound_location and target.base != bound_location:
1569
# there is a master branch.
1571
# XXX: Why the second check? Is it even supported for a branch to
1572
# be bound to itself? -- mbp 20070507
1573
master_branch = target.get_master_branch()
1574
master_branch.lock_write()
1576
# push into the master from this branch.
1577
self._basic_push(master_branch, overwrite, stop_revision)
1578
# and push into the target branch from this. Note that we push from
1579
# this branch again, because its considered the highest bandwidth
1581
result = self._basic_push(target, overwrite, stop_revision)
1582
result.master_branch = master_branch
1583
result.local_branch = target
1587
master_branch.unlock()
1590
result = self._basic_push(target, overwrite, stop_revision)
1591
# TODO: Why set master_branch and local_branch if there's no
1592
# binding? Maybe cleaner to just leave them unset? -- mbp
1594
result.master_branch = target
1595
result.local_branch = None
1599
def _basic_push(self, target, overwrite, stop_revision):
1600
"""Basic implementation of push without bound branches or hooks.
1602
Must be called with self read locked and target write locked.
1604
result = PushResult()
1605
result.source_branch = self
1606
result.target_branch = target
1607
result.old_revno, result.old_revid = target.last_revision_info()
1609
target.update_revisions(self, stop_revision)
1610
except DivergedBranches:
1614
target.set_revision_history(self.revision_history())
1615
result.tag_conflicts = self.tags.merge_to(target.tags)
1616
result.new_revno, result.new_revid = target.last_revision_info()
1619
def get_parent(self):
1620
"""See Branch.get_parent."""
1622
assert self.base[-1] == '/'
1623
parent = self._get_parent_location()
1626
# This is an old-format absolute path to a local branch
1627
# turn it into a url
1628
if parent.startswith('/'):
1629
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1631
return urlutils.join(self.base[:-1], parent)
1632
except errors.InvalidURLJoin, e:
1633
raise errors.InaccessibleParent(parent, self.base)
1635
def set_push_location(self, location):
1636
"""See Branch.set_push_location."""
1637
self.get_config().set_user_option(
1638
'push_location', location,
1639
store=_mod_config.STORE_LOCATION_NORECURSE)
1642
def set_parent(self, url):
1643
"""See Branch.set_parent."""
1644
# TODO: Maybe delete old location files?
1645
# URLs should never be unicode, even on the local fs,
1646
# FIXUP this and get_parent in a future branch format bump:
1647
# read and rewrite the file, and have the new format code read
1648
# using .get not .get_utf8. RBC 20060125
1650
if isinstance(url, unicode):
1652
url = url.encode('ascii')
1653
except UnicodeEncodeError:
1654
raise errors.InvalidURL(url,
1655
"Urls must be 7-bit ascii, "
1656
"use bzrlib.urlutils.escape")
1657
url = urlutils.relative_url(self.base, url)
1658
self._set_parent_location(url)
1660
def _set_parent_location(self, url):
1662
self.control_files._transport.delete('parent')
1664
assert isinstance(url, str)
1665
self.control_files.put_bytes('parent', url + '\n')
1667
@deprecated_function(zero_nine)
1668
def tree_config(self):
1669
"""DEPRECATED; call get_config instead.
1670
TreeConfig has become part of BranchConfig."""
1671
return TreeConfig(self)
1674
class BzrBranch5(BzrBranch):
1675
"""A format 5 branch. This supports new features over plan branches.
1677
It has support for a master_branch which is the data for bound branches.
1685
super(BzrBranch5, self).__init__(_format=_format,
1686
_control_files=_control_files,
1688
_repository=_repository)
1691
def pull(self, source, overwrite=False, stop_revision=None,
1693
"""Pull from source into self, updating my master if any.
1695
:param run_hooks: Private parameter - if false, this branch
1696
is being called because it's the master of the primary branch,
1697
so it should not run its hooks.
1699
bound_location = self.get_bound_location()
1700
master_branch = None
1701
if bound_location and source.base != bound_location:
1702
# not pulling from master, so we need to update master.
1703
master_branch = self.get_master_branch()
1704
master_branch.lock_write()
1707
# pull from source into master.
1708
master_branch.pull(source, overwrite, stop_revision,
1710
return super(BzrBranch5, self).pull(source, overwrite,
1711
stop_revision, _hook_master=master_branch,
1712
run_hooks=run_hooks)
1715
master_branch.unlock()
1717
def get_bound_location(self):
1719
return self.control_files.get_utf8('bound').read()[:-1]
1720
except errors.NoSuchFile:
1724
def get_master_branch(self):
1725
"""Return the branch we are bound to.
1727
:return: Either a Branch, or None
1729
This could memoise the branch, but if thats done
1730
it must be revalidated on each new lock.
1731
So for now we just don't memoise it.
1732
# RBC 20060304 review this decision.
1734
bound_loc = self.get_bound_location()
1738
return Branch.open(bound_loc)
1739
except (errors.NotBranchError, errors.ConnectionError), e:
1740
raise errors.BoundBranchConnectionFailure(
1744
def set_bound_location(self, location):
1745
"""Set the target where this branch is bound to.
1747
:param location: URL to the target branch
1750
self.control_files.put_utf8('bound', location+'\n')
1753
self.control_files._transport.delete('bound')
1349
if filename == head:
1356
def gen_file_id(name):
1357
"""Return new file id.
1359
This should probably generate proper UUIDs, but for the moment we
1360
cope with just randomness because running uuidgen every time is
1363
from binascii import hexlify
1364
from time import time
1366
# get last component
1367
idx = name.rfind('/')
1369
name = name[idx+1 : ]
1370
idx = name.rfind('\\')
1372
name = name[idx+1 : ]
1374
# make it not a hidden file
1375
name = name.lstrip('.')
1377
# remove any wierd characters; we don't escape them but rather
1378
# just pull them out
1379
name = re.sub(r'[^\w.]', '', name)
1381
s = hexlify(rand_bytes(8))
1382
return '-'.join((name, compact_date(time()), s))
1386
"""Return a new tree-root file id."""
1387
return gen_file_id('TREE_ROOT')
1759
def bind(self, other):
1760
"""Bind this branch to the branch other.
1762
This does not push or pull data between the branches, though it does
1763
check for divergence to raise an error when the branches are not
1764
either the same, or one a prefix of the other. That behaviour may not
1765
be useful, so that check may be removed in future.
1767
:param other: The branch to bind to
1770
# TODO: jam 20051230 Consider checking if the target is bound
1771
# It is debatable whether you should be able to bind to
1772
# a branch which is itself bound.
1773
# Committing is obviously forbidden,
1774
# but binding itself may not be.
1775
# Since we *have* to check at commit time, we don't
1776
# *need* to check here
1778
# we want to raise diverged if:
1779
# last_rev is not in the other_last_rev history, AND
1780
# other_last_rev is not in our history, and do it without pulling
1782
last_rev = self.last_revision()
1783
if last_rev is not None:
1786
other_last_rev = other.last_revision()
1787
if other_last_rev is not None:
1788
# neither branch is new, we have to do some work to
1789
# ascertain diversion.
1790
remote_graph = other.repository.get_revision_graph(
1792
local_graph = self.repository.get_revision_graph(last_rev)
1793
if (last_rev not in remote_graph and
1794
other_last_rev not in local_graph):
1795
raise errors.DivergedBranches(self, other)
1798
self.set_bound_location(other.base)
1802
"""If bound, unbind"""
1803
return self.set_bound_location(None)
1807
"""Synchronise this branch with the master branch if any.
1809
:return: None or the last_revision that was pivoted out during the
1812
master = self.get_master_branch()
1813
if master is not None:
1814
old_tip = self.last_revision()
1815
self.pull(master, overwrite=True)
1816
if old_tip in self.repository.get_ancestry(self.last_revision(),
1823
class BzrBranchExperimental(BzrBranch5):
1824
"""Bzr experimental branch format
1827
- a revision-history file.
1829
- a lock dir guarding the branch itself
1830
- all of this stored in a branch/ subdirectory
1831
- works with shared repositories.
1832
- a tag dictionary in the branch
1834
This format is new in bzr 0.15, but shouldn't be used for real data,
1837
This class acts as it's own BranchFormat.
1840
_matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1843
def get_format_string(cls):
1844
"""See BranchFormat.get_format_string()."""
1845
return "Bazaar-NG branch format experimental\n"
1848
def get_format_description(cls):
1849
"""See BranchFormat.get_format_description()."""
1850
return "Experimental branch format"
1853
def get_reference(cls, a_bzrdir):
1854
"""Get the target reference of the branch in a_bzrdir.
1856
format probing must have been completed before calling
1857
this method - it is assumed that the format of the branch
1858
in a_bzrdir is correct.
1860
:param a_bzrdir: The bzrdir to get the branch data from.
1861
:return: None if the branch is not a reference branch.
1866
def _initialize_control_files(cls, a_bzrdir, utf8_files, lock_filename,
1868
branch_transport = a_bzrdir.get_branch_transport(cls)
1869
control_files = lockable_files.LockableFiles(branch_transport,
1870
lock_filename, lock_class)
1871
control_files.create_lock()
1872
control_files.lock_write()
1874
for filename, content in utf8_files:
1875
control_files.put_utf8(filename, content)
1877
control_files.unlock()
1880
def initialize(cls, a_bzrdir):
1881
"""Create a branch of this format in a_bzrdir."""
1882
utf8_files = [('format', cls.get_format_string()),
1883
('revision-history', ''),
1884
('branch-name', ''),
1887
cls._initialize_control_files(a_bzrdir, utf8_files,
1888
'lock', lockdir.LockDir)
1889
return cls.open(a_bzrdir, _found=True)
1892
def open(cls, a_bzrdir, _found=False):
1893
"""Return the branch object for a_bzrdir
1895
_found is a private parameter, do not use it. It is used to indicate
1896
if format probing has already be done.
1899
format = BranchFormat.find_format(a_bzrdir)
1900
assert format.__class__ == cls
1901
transport = a_bzrdir.get_branch_transport(None)
1902
control_files = lockable_files.LockableFiles(transport, 'lock',
1904
return cls(_format=cls,
1905
_control_files=control_files,
1907
_repository=a_bzrdir.find_repository())
1910
def is_supported(cls):
1913
def _make_tags(self):
1914
return BasicTags(self)
1917
def supports_tags(cls):
1921
BranchFormat.register_format(BzrBranchExperimental)
1924
class BzrBranch6(BzrBranch5):
1927
def last_revision_info(self):
1928
revision_string = self.control_files.get('last-revision').read()
1929
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
1930
revision_id = cache_utf8.get_cached_utf8(revision_id)
1932
return revno, revision_id
1934
def last_revision(self):
1935
"""Return last revision id, or None"""
1936
revision_id = self.last_revision_info()[1]
1937
if revision_id == _mod_revision.NULL_REVISION:
1941
def _write_last_revision_info(self, revno, revision_id):
1942
"""Simply write out the revision id, with no checks.
1944
Use set_last_revision_info to perform this safely.
1946
Does not update the revision_history cache.
1947
Intended to be called by set_last_revision_info and
1948
_write_revision_history.
1950
if revision_id is None:
1951
revision_id = 'null:'
1952
out_string = '%d %s\n' % (revno, revision_id)
1953
self.control_files.put_bytes('last-revision', out_string)
1956
def set_last_revision_info(self, revno, revision_id):
1957
revision_id = osutils.safe_revision_id(revision_id)
1958
if self._get_append_revisions_only():
1959
self._check_history_violation(revision_id)
1960
self._write_last_revision_info(revno, revision_id)
1961
self._clear_cached_state()
1963
def _check_history_violation(self, revision_id):
1964
last_revision = self.last_revision()
1965
if last_revision is None:
1967
if last_revision not in self._lefthand_history(revision_id):
1968
raise errors.AppendRevisionsOnlyViolation(self.base)
1970
def _gen_revision_history(self):
1971
"""Generate the revision history from last revision
1973
history = list(self.repository.iter_reverse_revision_history(
1974
self.last_revision()))
1978
def _write_revision_history(self, history):
1979
"""Factored out of set_revision_history.
1981
This performs the actual writing to disk, with format-specific checks.
1982
It is intended to be called by BzrBranch5.set_revision_history.
1984
if len(history) == 0:
1985
last_revision = 'null:'
1987
if history != self._lefthand_history(history[-1]):
1988
raise errors.NotLefthandHistory(history)
1989
last_revision = history[-1]
1990
if self._get_append_revisions_only():
1991
self._check_history_violation(last_revision)
1992
self._write_last_revision_info(len(history), last_revision)
1995
def append_revision(self, *revision_ids):
1996
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1997
if len(revision_ids) == 0:
1999
prev_revno, prev_revision = self.last_revision_info()
2000
for revision in self.repository.get_revisions(revision_ids):
2001
if prev_revision == _mod_revision.NULL_REVISION:
2002
if revision.parent_ids != []:
2003
raise errors.NotLeftParentDescendant(self, prev_revision,
2004
revision.revision_id)
2006
if revision.parent_ids[0] != prev_revision:
2007
raise errors.NotLeftParentDescendant(self, prev_revision,
2008
revision.revision_id)
2009
prev_revision = revision.revision_id
2010
self.set_last_revision_info(prev_revno + len(revision_ids),
2014
def _set_parent_location(self, url):
2015
"""Set the parent branch"""
2016
self._set_config_location('parent_location', url, make_relative=True)
2019
def _get_parent_location(self):
2020
"""Set the parent branch"""
2021
return self._get_config_location('parent_location')
2023
def set_push_location(self, location):
2024
"""See Branch.set_push_location."""
2025
self._set_config_location('push_location', location)
2027
def set_bound_location(self, location):
2028
"""See Branch.set_push_location."""
2030
config = self.get_config()
2031
if location is None:
2032
if config.get_user_option('bound') != 'True':
2035
config.set_user_option('bound', 'False', warn_masked=True)
2038
self._set_config_location('bound_location', location,
2040
config.set_user_option('bound', 'True', warn_masked=True)
2043
def _get_bound_location(self, bound):
2044
"""Return the bound location in the config file.
2046
Return None if the bound parameter does not match"""
2047
config = self.get_config()
2048
config_bound = (config.get_user_option('bound') == 'True')
2049
if config_bound != bound:
2051
return self._get_config_location('bound_location', config=config)
2053
def get_bound_location(self):
2054
"""See Branch.set_push_location."""
2055
return self._get_bound_location(True)
2057
def get_old_bound_location(self):
2058
"""See Branch.get_old_bound_location"""
2059
return self._get_bound_location(False)
2061
def set_append_revisions_only(self, enabled):
2066
self.get_config().set_user_option('append_revisions_only', value,
2069
def _get_append_revisions_only(self):
2070
value = self.get_config().get_user_option('append_revisions_only')
2071
return value == 'True'
2073
def _synchronize_history(self, destination, revision_id):
2074
"""Synchronize last revision and revision history between branches.
2076
This version is most efficient when the destination is also a
2077
BzrBranch6, but works for BzrBranch5, as long as the destination's
2078
repository contains all the lefthand ancestors of the intended
2079
last_revision. If not, set_last_revision_info will fail.
2081
:param destination: The branch to copy the history into
2082
:param revision_id: The revision-id to truncate history at. May
2083
be None to copy complete history.
2085
if revision_id is None:
2086
revno, revision_id = self.last_revision_info()
2088
# To figure out the revno for a random revision, we need to build
2089
# the revision history, and count its length.
2090
# We don't care about the order, just how long it is.
2091
# Alternatively, we could start at the current location, and count
2092
# backwards. But there is no guarantee that we will find it since
2093
# it may be a merged revision.
2094
revno = len(list(self.repository.iter_reverse_revision_history(
2096
destination.set_last_revision_info(revno, revision_id)
2098
def _make_tags(self):
2099
return BasicTags(self)
2102
######################################################################
2103
# results of operations
2106
class _Result(object):
2108
def _show_tag_conficts(self, to_file):
2109
if not getattr(self, 'tag_conflicts', None):
2111
to_file.write('Conflicting tags:\n')
2112
for name, value1, value2 in self.tag_conflicts:
2113
to_file.write(' %s\n' % (name, ))
2116
class PullResult(_Result):
2117
"""Result of a Branch.pull operation.
2119
:ivar old_revno: Revision number before pull.
2120
:ivar new_revno: Revision number after pull.
2121
:ivar old_revid: Tip revision id before pull.
2122
:ivar new_revid: Tip revision id after pull.
2123
:ivar source_branch: Source (local) branch object.
2124
:ivar master_branch: Master branch of the target, or None.
2125
:ivar target_branch: Target/destination branch object.
2129
# DEPRECATED: pull used to return the change in revno
2130
return self.new_revno - self.old_revno
2132
def report(self, to_file):
2133
if self.old_revid == self.new_revid:
2134
to_file.write('No revisions to pull.\n')
2136
to_file.write('Now on revision %d.\n' % self.new_revno)
2137
self._show_tag_conficts(to_file)
2140
class PushResult(_Result):
2141
"""Result of a Branch.push operation.
2143
:ivar old_revno: Revision number before push.
2144
:ivar new_revno: Revision number after push.
2145
:ivar old_revid: Tip revision id before push.
2146
:ivar new_revid: Tip revision id after push.
2147
:ivar source_branch: Source branch object.
2148
:ivar master_branch: Master branch of the target, or None.
2149
:ivar target_branch: Target/destination branch object.
2153
# DEPRECATED: push used to return the change in revno
2154
return self.new_revno - self.old_revno
2156
def report(self, to_file):
2157
"""Write a human-readable description of the result."""
2158
if self.old_revid == self.new_revid:
2159
to_file.write('No new revisions to push.\n')
2161
to_file.write('Pushed up to revision %d.\n' % self.new_revno)
2162
self._show_tag_conficts(to_file)
2165
class BranchCheckResult(object):
2166
"""Results of checking branch consistency.
2171
def __init__(self, branch):
2172
self.branch = branch
2174
def report_results(self, verbose):
2175
"""Report the check results via trace.note.
2177
:param verbose: Requests more detailed display of what was checked,
2180
note('checked branch %s format %s',
2182
self.branch._format)
2185
class Converter5to6(object):
2186
"""Perform an in-place upgrade of format 5 to format 6"""
2188
def convert(self, branch):
2189
# Data for 5 and 6 can peacefully coexist.
2190
format = BzrBranchFormat6()
2191
new_branch = format.open(branch.bzrdir, _found=True)
2193
# Copy source data into target
2194
new_branch.set_last_revision_info(*branch.last_revision_info())
2195
new_branch.set_parent(branch.get_parent())
2196
new_branch.set_bound_location(branch.get_bound_location())
2197
new_branch.set_push_location(branch.get_push_location())
2199
# New branch has no tags by default
2200
new_branch.tags._set_tag_dict({})
2202
# Copying done; now update target format
2203
new_branch.control_files.put_utf8('format',
2204
format.get_format_string())
2206
# Clean up old files
2207
new_branch.control_files._transport.delete('revision-history')
2209
branch.set_parent(None)
2212
branch.set_bound_location(None)
added
removed
bzrlib/branch.py
