137
86
"""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.
89
Base directory/url of the branch.
91
hooks: An instance of BranchHooks.
93
# 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.
97
# override this to set the strategy for storing tags
99
return DisabledTags(self)
101
def __init__(self, *ignored, **ignored_too):
102
self.tags = self._make_tags()
103
self._revision_history_cache = None
104
self._revision_id_to_revno_cache = None
106
def break_lock(self):
107
"""Break a lock if one is present from another instance.
109
Uses the ui factory to ask for confirmation if the lock may be from
112
This will probe the repository for its lock as well.
114
self.control_files.break_lock()
115
self.repository.break_lock()
116
master = self.get_master_branch()
117
if master is not None:
121
def open(base, _unsupported=False, possible_transports=None):
122
"""Open the branch rooted at base.
124
For instance, if the branch is at URL/.bzr/branch,
125
Branch.open(URL) -> a Branch instance.
127
control = bzrdir.BzrDir.open(base, _unsupported,
128
possible_transports=possible_transports)
129
return control.open_branch(_unsupported)
132
def open_from_transport(transport, _unsupported=False):
133
"""Open the branch rooted at transport"""
134
control = bzrdir.BzrDir.open_from_transport(transport, _unsupported)
135
return control.open_branch(_unsupported)
138
def open_containing(url, possible_transports=None):
139
"""Open an existing branch which contains url.
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.
141
This probes for a branch at url, and searches upwards from there.
143
Basically we keep looking up until we find the control directory or
144
run into the root. If there isn't one, raises NotBranchError.
145
If there is one and it is either an unrecognised format or an unsupported
146
format, UnknownFormatError or UnsupportedFormatError are raised.
147
If there is one, it is returned, along with the unused portion of url.
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)
149
control, relpath = bzrdir.BzrDir.open_containing(url,
151
return control.open_branch(), relpath
153
def get_config(self):
154
return BranchConfig(self)
157
return self.get_config().get_nickname()
159
def _set_nick(self, nick):
160
self.get_config().set_user_option('nickname', nick, warn_masked=True)
162
nick = property(_get_nick, _set_nick)
165
raise NotImplementedError(self.is_locked)
212
167
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'
168
raise NotImplementedError(self.lock_write)
228
170
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'
171
raise NotImplementedError(self.lock_read)
242
173
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
174
raise NotImplementedError(self.unlock)
176
def peek_lock_mode(self):
177
"""Return lock mode for the Branch: 'r', 'w' or None"""
178
raise NotImplementedError(self.peek_lock_mode)
180
def get_physical_lock_status(self):
181
raise NotImplementedError(self.get_physical_lock_status)
184
def get_revision_id_to_revno_map(self):
185
"""Return the revision_id => dotted revno map.
187
This will be regenerated on demand, but will be cached.
189
:return: A dictionary mapping revision_id => dotted revno.
190
This dictionary should not be modified by the caller.
192
if self._revision_id_to_revno_cache is not None:
193
mapping = self._revision_id_to_revno_cache
252
self._lock_mode = self._lock_count = None
195
mapping = self._gen_revno_map()
196
self._cache_revision_id_to_revno(mapping)
197
# TODO: jam 20070417 Since this is being cached, should we be returning
199
# I would rather not, and instead just declare that users should not
200
# modify the return value.
203
def _gen_revno_map(self):
204
"""Create a new mapping from revision ids to dotted revnos.
206
Dotted revnos are generated based on the current tip in the revision
208
This is the worker function for get_revision_id_to_revno_map, which
209
just caches the return value.
211
:return: A dictionary mapping revision_id => dotted revno.
213
last_revision = self.last_revision()
214
revision_graph = self.repository.get_revision_graph(last_revision)
215
merge_sorted_revisions = tsort.merge_sort(
220
revision_id_to_revno = dict((rev_id, revno)
221
for seq_num, rev_id, depth, revno, end_of_merge
222
in merge_sorted_revisions)
223
return revision_id_to_revno
225
def leave_lock_in_place(self):
226
"""Tell this branch object not to release the physical lock when this
229
If lock_write doesn't return a token, then this method is not supported.
231
self.control_files.leave_in_place()
233
def dont_leave_lock_in_place(self):
234
"""Tell this branch object to release the physical lock when this
235
object is unlocked, even if it didn't originally acquire it.
237
If lock_write doesn't return a token, then this method is not supported.
239
self.control_files.dont_leave_in_place()
255
241
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
242
"""Return absolute filename for something in the branch
244
XXX: Robert Collins 20051017 what is this used for? why is it a branch
245
method and not a tree method.
247
raise NotImplementedError(self.abspath)
249
def bind(self, other):
250
"""Bind the local branch the other branch.
252
:param other: The branch to bind to
255
raise errors.UpgradeRequired(self.base)
258
def fetch(self, from_branch, last_revision=None, pb=None):
259
"""Copy revisions from from_branch into this branch.
261
:param from_branch: Where to copy from.
262
:param last_revision: What revision to stop at (None for at the end
264
:param pb: An optional progress bar to use.
266
Returns the copied revision count and the failed revisions in a tuple:
269
if self.base == from_branch.base:
272
nested_pb = ui.ui_factory.nested_progress_bar()
277
from_branch.lock_read()
279
if last_revision is None:
280
pb.update('get source history')
281
last_revision = from_branch.last_revision()
282
if last_revision is None:
283
last_revision = _mod_revision.NULL_REVISION
284
return self.repository.fetch(from_branch.repository,
285
revision_id=last_revision,
288
if nested_pb is not None:
292
def get_bound_location(self):
293
"""Return the URL of the branch we are bound to.
295
Older format branches cannot bind, please be sure to use a metadir
300
def get_old_bound_location(self):
301
"""Return the URL of the branch we used to be bound to
303
raise errors.UpgradeRequired(self.base)
305
def get_commit_builder(self, parents, config=None, timestamp=None,
306
timezone=None, committer=None, revprops=None,
308
"""Obtain a CommitBuilder for this branch.
310
:param parents: Revision ids of the parents of the new revision.
311
:param config: Optional configuration to use.
312
:param timestamp: Optional timestamp recorded for commit.
313
:param timezone: Optional timezone for timestamp.
314
:param committer: Optional committer to set for commit.
315
:param revprops: Optional dictionary of revision properties.
316
:param revision_id: Optional revision id.
320
config = self.get_config()
322
return self.repository.get_commit_builder(self, parents, config,
323
timestamp, timezone, committer, revprops, revision_id)
325
def get_master_branch(self, possible_transports=None):
326
"""Return the branch we are bound to.
328
:return: Either a Branch, or None
617
332
def get_revision_delta(self, revno):
618
333
"""Return the delta for one revision.
794
469
if stop_revision is None:
795
470
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
472
assert isinstance(stop_revision, int)
473
if stop_revision > other_len:
474
raise errors.NoSuchRevision(self, stop_revision)
799
475
return other_history[self_len:stop_revision]
802
477
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())
478
"""Pull in new perfect-fit revisions.
480
:param other: Another Branch to pull from
481
:param stop_revision: Updated until the given revision
484
raise NotImplementedError(self.update_revisions)
486
def revision_id_to_revno(self, revision_id):
487
"""Given a revision id, return its revno"""
488
if _mod_revision.is_null(revision_id):
490
history = self.revision_history()
492
return history.index(revision_id) + 1
494
raise errors.NoSuchRevision(self, revision_id)
496
def get_rev_id(self, revno, history=None):
497
"""Find the revision id of the specified revno."""
499
return _mod_revision.NULL_REVISION
501
history = self.revision_history()
502
if revno <= 0 or revno > len(history):
503
raise errors.NoSuchRevision(self, revno)
504
return history[revno - 1]
506
def pull(self, source, overwrite=False, stop_revision=None,
507
possible_transports=None):
508
"""Mirror source into this branch.
510
This branch is considered to be 'local', having low latency.
512
:returns: PullResult instance
514
raise NotImplementedError(self.pull)
516
def push(self, target, overwrite=False, stop_revision=None):
517
"""Mirror this branch into target.
519
This branch is considered to be 'local', having low latency.
521
raise NotImplementedError(self.push)
1053
523
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))
524
"""Return `Tree` object for last revision."""
525
return self.repository.revision_tree(self.last_revision())
1066
527
def rename_one(self, from_rel, to_rel):
1067
528
"""Rename one file.
1069
530
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)
532
raise NotImplementedError(self.rename_one)
1117
534
def move(self, from_paths, to_name):
1118
535
"""Rename files.
1125
542
Note that to_name is only the last component of the new name;
1126
543
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:
545
This returns a list of (from_path, to_path) pairs for each
548
raise NotImplementedError(self.move)
550
def get_parent(self):
551
"""Return the parent location of the branch.
553
This is the default location for push/pull/missing. The usual
554
pattern is that the user can override it by specifying a
557
raise NotImplementedError(self.get_parent)
559
def _set_config_location(self, name, url, config=None,
560
make_relative=False):
562
config = self.get_config()
566
url = urlutils.relative_url(self.base, url)
567
config.set_user_option(name, url, warn_masked=True)
569
def _get_config_location(self, name, config=None):
571
config = self.get_config()
572
location = config.get_user_option(name)
577
def get_submit_branch(self):
578
"""Return the submit location of the branch.
580
This is the default location for bundle. The usual
581
pattern is that the user can override it by specifying a
584
return self.get_config().get_user_option('submit_branch')
586
def set_submit_branch(self, location):
587
"""Return the submit location of the branch.
589
This is the default location for bundle. The usual
590
pattern is that the user can override it by specifying a
593
self.get_config().set_user_option('submit_branch', location,
596
def get_public_branch(self):
597
"""Return the public location of the branch.
599
This is is used by merge directives.
601
return self._get_config_location('public_branch')
603
def set_public_branch(self, location):
604
"""Return the submit location of the branch.
606
This is the default location for bundle. The usual
607
pattern is that the user can override it by specifying a
610
self._set_config_location('public_branch', location)
612
def get_push_location(self):
613
"""Return the None or the location to push this branch to."""
614
push_loc = self.get_config().get_user_option('push_location')
617
def set_push_location(self, location):
618
"""Set a new push location for this branch."""
619
raise NotImplementedError(self.set_push_location)
621
def set_parent(self, url):
622
raise NotImplementedError(self.set_parent)
626
"""Synchronise this branch with the master branch if any.
628
:return: None or the last_revision pivoted out during the update.
632
def check_revno(self, revno):
634
Check whether a revno corresponds to any revision.
635
Zero (the NULL revision) is considered valid.
638
self.check_real_revno(revno)
640
def check_real_revno(self, revno):
642
Check whether a revno corresponds to a real revision.
643
Zero (the NULL revision) is considered invalid
645
if revno < 1 or revno > self.revno():
646
raise InvalidRevisionNumber(revno)
649
def clone(self, to_bzrdir, revision_id=None):
650
"""Clone this branch into to_bzrdir preserving all semantic values.
652
revision_id: if not None, the revision history in the new branch will
653
be truncated to end with revision_id.
655
result = self._format.initialize(to_bzrdir)
656
self.copy_content_into(result, revision_id=revision_id)
660
def sprout(self, to_bzrdir, revision_id=None):
661
"""Create a new line of development from the branch, into to_bzrdir.
663
revision_id: if not None, the revision history in the new branch will
664
be truncated to end with revision_id.
666
result = self._format.initialize(to_bzrdir)
667
self.copy_content_into(result, revision_id=revision_id)
668
result.set_parent(self.bzrdir.root_transport.base)
671
def _synchronize_history(self, destination, revision_id):
672
"""Synchronize last revision and revision history between branches.
674
This version is most efficient when the destination is also a
675
BzrBranch5, but works for BzrBranch6 as long as the revision
676
history is the true lefthand parent history, and all of the revisions
677
are in the destination's repository. If not, set_revision_history
680
:param destination: The branch to copy the history into
681
:param revision_id: The revision-id to truncate history at. May
682
be None to copy complete history.
684
if revision_id == _mod_revision.NULL_REVISION:
686
new_history = self.revision_history()
687
if revision_id is not None and new_history != []:
689
new_history = new_history[:new_history.index(revision_id) + 1]
691
rev = self.repository.get_revision(revision_id)
692
new_history = rev.get_history(self.repository)[1:]
693
destination.set_revision_history(new_history)
696
def copy_content_into(self, destination, revision_id=None):
697
"""Copy the content of self into destination.
699
revision_id: if not None, the revision history in the new branch will
700
be truncated to end with revision_id.
702
self._synchronize_history(destination, revision_id)
704
parent = self.get_parent()
705
except errors.InaccessibleParent, e:
706
mutter('parent was not accessible to copy: %s', e)
709
destination.set_parent(parent)
710
self.tags.merge_to(destination.tags)
714
"""Check consistency of the branch.
716
In particular this checks that revisions given in the revision-history
717
do actually match up in the revision graph, and that they're all
718
present in the repository.
720
Callers will typically also want to check the repository.
722
:return: A BranchCheckResult.
724
mainline_parent_id = None
725
for revision_id in self.revision_history():
727
revision = self.repository.get_revision(revision_id)
728
except errors.NoSuchRevision, e:
729
raise errors.BzrCheckError("mainline revision {%s} not in repository"
731
# In general the first entry on the revision history has no parents.
732
# But it's not illegal for it to have parents listed; this can happen
733
# in imports from Arch when the parents weren't reachable.
734
if mainline_parent_id is not None:
735
if mainline_parent_id not in revision.parent_ids:
736
raise errors.BzrCheckError("previous revision {%s} not listed among "
738
% (mainline_parent_id, revision_id))
739
mainline_parent_id = revision_id
740
return BranchCheckResult(self)
742
def _get_checkout_format(self):
743
"""Return the most suitable metadir for a checkout of this branch.
744
Weaves are used if this branch's repository uses weaves.
746
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
747
from bzrlib.repofmt import weaverepo
748
format = bzrdir.BzrDirMetaFormat1()
749
format.repository_format = weaverepo.RepositoryFormat7()
751
format = self.repository.bzrdir.checkout_metadir()
752
format.set_branch_format(self._format)
755
def create_checkout(self, to_location, revision_id=None,
756
lightweight=False, accelerator_tree=None,
758
"""Create a checkout of a branch.
760
:param to_location: The url to produce the checkout at
761
:param revision_id: The revision to check out
762
:param lightweight: If True, produce a lightweight checkout, otherwise,
763
produce a bound branch (heavyweight checkout)
764
:param accelerator_tree: A tree which can be used for retrieving file
765
contents more quickly than the revision tree, i.e. a workingtree.
766
The revision tree will be used for cases where accelerator_tree's
767
content is different.
768
:param hardlink: If true, hard-link files from accelerator_tree,
770
:return: The tree of the created checkout
772
t = transport.get_transport(to_location)
775
format = self._get_checkout_format()
776
checkout = format.initialize_on_transport(t)
777
from_branch = BranchReferenceFormat().initialize(checkout, self)
779
format = self._get_checkout_format()
780
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
781
to_location, force_new_tree=False, format=format)
782
checkout = checkout_branch.bzrdir
783
checkout_branch.bind(self)
784
# pull up to the specified revision_id to set the initial
785
# branch tip correctly, and seed it with history.
786
checkout_branch.pull(self, stop_revision=revision_id)
788
tree = checkout.create_workingtree(revision_id,
789
from_branch=from_branch,
790
accelerator_tree=accelerator_tree,
792
basis_tree = tree.basis_tree()
793
basis_tree.lock_read()
795
for path, file_id in basis_tree.iter_references():
796
reference_parent = self.reference_parent(file_id, path)
797
reference_parent.create_checkout(tree.abspath(path),
798
basis_tree.get_reference_revision(file_id, path),
804
def reference_parent(self, file_id, path):
805
"""Return the parent branch for a tree-reference file_id
806
:param file_id: The file_id of the tree reference
807
:param path: The path of the file_id in the tree
808
:return: A branch associated with the file_id
810
# FIXME should provide multiple branches, based on config
811
return Branch.open(self.bzrdir.root_transport.clone(path).base)
813
def supports_tags(self):
814
return self._format.supports_tags()
817
class BranchFormat(object):
818
"""An encapsulation of the initialization and open routines for a format.
820
Formats provide three things:
821
* An initialization routine,
825
Formats are placed in an dict by their format string for reference
826
during branch opening. Its not required that these be instances, they
827
can be classes themselves with class methods - it simply depends on
828
whether state is needed for a given format or not.
830
Once a format is deprecated, just deprecate the initialize and open
831
methods on the format class. Do not deprecate the object, as the
832
object will be created every time regardless.
835
_default_format = None
836
"""The default format used for new branches."""
839
"""The known formats."""
841
def __eq__(self, other):
842
return self.__class__ is other.__class__
844
def __ne__(self, other):
845
return not (self == other)
848
def find_format(klass, a_bzrdir):
849
"""Return the format for the branch object in a_bzrdir."""
851
transport = a_bzrdir.get_branch_transport(None)
852
format_string = transport.get("format").read()
853
return klass._formats[format_string]
855
raise NotBranchError(path=transport.base)
857
raise errors.UnknownFormatError(format=format_string)
860
def get_default_format(klass):
861
"""Return the current default format."""
862
return klass._default_format
864
def get_reference(self, a_bzrdir):
865
"""Get the target reference of the branch in a_bzrdir.
867
format probing must have been completed before calling
868
this method - it is assumed that the format of the branch
869
in a_bzrdir is correct.
871
:param a_bzrdir: The bzrdir to get the branch data from.
872
:return: None if the branch is not a reference branch.
877
def set_reference(self, a_bzrdir, to_branch):
878
"""Set the target reference of the branch in a_bzrdir.
880
format probing must have been completed before calling
881
this method - it is assumed that the format of the branch
882
in a_bzrdir is correct.
884
:param a_bzrdir: The bzrdir to set the branch reference for.
885
:param to_branch: branch that the checkout is to reference
887
raise NotImplementedError(self.set_reference)
889
def get_format_string(self):
890
"""Return the ASCII format string that identifies this format."""
891
raise NotImplementedError(self.get_format_string)
893
def get_format_description(self):
894
"""Return the short format description for this format."""
895
raise NotImplementedError(self.get_format_description)
897
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
899
"""Initialize a branch in a bzrdir, with specified files
901
:param a_bzrdir: The bzrdir to initialize the branch in
902
:param utf8_files: The files to create as a list of
903
(filename, content) tuples
904
:param set_format: If True, set the format with
905
self.get_format_string. (BzrBranch4 has its format set
907
:return: a branch in this format
909
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
910
branch_transport = a_bzrdir.get_branch_transport(self)
912
'metadir': ('lock', lockdir.LockDir),
913
'branch4': ('branch-lock', lockable_files.TransportLock),
915
lock_name, lock_class = lock_map[lock_type]
916
control_files = lockable_files.LockableFiles(branch_transport,
917
lock_name, lock_class)
918
control_files.create_lock()
919
control_files.lock_write()
921
control_files.put_utf8('format', self.get_format_string())
923
for file, content in utf8_files:
924
control_files.put_utf8(file, content)
926
control_files.unlock()
927
return self.open(a_bzrdir, _found=True)
929
def initialize(self, a_bzrdir):
930
"""Create a branch of this format in a_bzrdir."""
931
raise NotImplementedError(self.initialize)
933
def is_supported(self):
934
"""Is this format supported?
936
Supported formats can be initialized and opened.
937
Unsupported formats may not support initialization or committing or
938
some other features depending on the reason for not being supported.
942
def open(self, a_bzrdir, _found=False):
943
"""Return the branch object for a_bzrdir
945
_found is a private parameter, do not use it. It is used to indicate
946
if format probing has already be done.
948
raise NotImplementedError(self.open)
951
def register_format(klass, format):
952
klass._formats[format.get_format_string()] = format
955
def set_default_format(klass, format):
956
klass._default_format = format
959
def unregister_format(klass, format):
960
assert klass._formats[format.get_format_string()] is format
961
del klass._formats[format.get_format_string()]
964
return self.get_format_string().rstrip()
966
def supports_tags(self):
967
"""True if this format supports tags stored in the branch"""
968
return False # by default
970
# XXX: Probably doesn't really belong here -- mbp 20070212
971
def _initialize_control_files(self, a_bzrdir, utf8_files, lock_filename,
973
branch_transport = a_bzrdir.get_branch_transport(self)
974
control_files = lockable_files.LockableFiles(branch_transport,
975
lock_filename, lock_class)
976
control_files.create_lock()
977
control_files.lock_write()
979
for filename, content in utf8_files:
980
control_files.put_utf8(filename, content)
982
control_files.unlock()
985
class BranchHooks(Hooks):
986
"""A dictionary mapping hook name to a list of callables for branch hooks.
988
e.g. ['set_rh'] Is the list of items to be called when the
989
set_revision_history function is invoked.
993
"""Create the default hooks.
995
These are all empty initially, because by default nothing should get
999
# Introduced in 0.15:
1000
# invoked whenever the revision history has been set
1001
# with set_revision_history. The api signature is
1002
# (branch, revision_history), and the branch will
1005
# invoked after a push operation completes.
1006
# the api signature is
1008
# containing the members
1009
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1010
# where local is the local target branch or None, master is the target
1011
# master branch, and the rest should be self explanatory. The source
1012
# is read locked and the target branches write locked. Source will
1013
# be the local low-latency branch.
1014
self['post_push'] = []
1015
# invoked after a pull operation completes.
1016
# the api signature is
1018
# containing the members
1019
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1020
# where local is the local branch or None, master is the target
1021
# master branch, and the rest should be self explanatory. The source
1022
# is read locked and the target branches write locked. The local
1023
# branch is the low-latency branch.
1024
self['post_pull'] = []
1025
# invoked before a commit operation takes place.
1026
# the api signature is
1027
# (local, master, old_revno, old_revid, future_revno, future_revid,
1028
# tree_delta, future_tree).
1029
# old_revid is NULL_REVISION for the first commit to a branch
1030
# tree_delta is a TreeDelta object describing changes from the basis
1031
# revision, hooks MUST NOT modify this delta
1032
# future_tree is an in-memory tree obtained from
1033
# CommitBuilder.revision_tree() and hooks MUST NOT modify this tree
1034
self['pre_commit'] = []
1035
# invoked after a commit operation completes.
1036
# the api signature is
1037
# (local, master, old_revno, old_revid, new_revno, new_revid)
1038
# old_revid is NULL_REVISION for the first commit to a branch.
1039
self['post_commit'] = []
1040
# invoked after a uncommit operation completes.
1041
# the api signature is
1042
# (local, master, old_revno, old_revid, new_revno, new_revid) where
1043
# local is the local branch or None, master is the target branch,
1044
# and an empty branch recieves new_revno of 0, new_revid of None.
1045
self['post_uncommit'] = []
1048
# install the default hooks into the Branch class.
1049
Branch.hooks = BranchHooks()
1052
class BzrBranchFormat4(BranchFormat):
1053
"""Bzr branch format 4.
1056
- a revision-history file.
1057
- a branch-lock lock file [ to be shared with the bzrdir ]
1060
def get_format_description(self):
1061
"""See BranchFormat.get_format_description()."""
1062
return "Branch format 4"
1064
def initialize(self, a_bzrdir):
1065
"""Create a branch of this format in a_bzrdir."""
1066
utf8_files = [('revision-history', ''),
1067
('branch-name', ''),
1069
return self._initialize_helper(a_bzrdir, utf8_files,
1070
lock_type='branch4', set_format=False)
1073
super(BzrBranchFormat4, self).__init__()
1074
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1076
def open(self, a_bzrdir, _found=False):
1077
"""Return the branch object for a_bzrdir
1079
_found is a private parameter, do not use it. It is used to indicate
1080
if format probing has already be done.
1083
# we are being called directly and must probe.
1084
raise NotImplementedError
1085
return BzrBranch(_format=self,
1086
_control_files=a_bzrdir._control_files,
1088
_repository=a_bzrdir.open_repository())
1091
return "Bazaar-NG branch format 4"
1094
class BzrBranchFormat5(BranchFormat):
1095
"""Bzr branch format 5.
1098
- a revision-history file.
1100
- a lock dir guarding the branch itself
1101
- all of this stored in a branch/ subdirectory
1102
- works with shared repositories.
1104
This format is new in bzr 0.8.
1107
def get_format_string(self):
1108
"""See BranchFormat.get_format_string()."""
1109
return "Bazaar-NG branch format 5\n"
1111
def get_format_description(self):
1112
"""See BranchFormat.get_format_description()."""
1113
return "Branch format 5"
1115
def initialize(self, a_bzrdir):
1116
"""Create a branch of this format in a_bzrdir."""
1117
utf8_files = [('revision-history', ''),
1118
('branch-name', ''),
1120
return self._initialize_helper(a_bzrdir, utf8_files)
1123
super(BzrBranchFormat5, self).__init__()
1124
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1126
def open(self, a_bzrdir, _found=False):
1127
"""Return the branch object for a_bzrdir
1129
_found is a private parameter, do not use it. It is used to indicate
1130
if format probing has already be done.
1133
format = BranchFormat.find_format(a_bzrdir)
1134
assert format.__class__ == self.__class__
1136
transport = a_bzrdir.get_branch_transport(None)
1137
control_files = lockable_files.LockableFiles(transport, 'lock',
1139
return BzrBranch5(_format=self,
1140
_control_files=control_files,
1142
_repository=a_bzrdir.find_repository())
1144
raise NotBranchError(path=transport.base)
1147
class BzrBranchFormat6(BzrBranchFormat5):
1148
"""Branch format with last-revision and tags.
1150
Unlike previous formats, this has no explicit revision history. Instead,
1151
this just stores the last-revision, and the left-hand history leading
1152
up to there is the history.
1154
This format was introduced in bzr 0.15
1155
and became the default in 0.91.
1158
def get_format_string(self):
1159
"""See BranchFormat.get_format_string()."""
1160
return "Bazaar Branch Format 6 (bzr 0.15)\n"
1162
def get_format_description(self):
1163
"""See BranchFormat.get_format_description()."""
1164
return "Branch format 6"
1166
def initialize(self, a_bzrdir):
1167
"""Create a branch of this format in a_bzrdir."""
1168
utf8_files = [('last-revision', '0 null:\n'),
1169
('branch.conf', ''),
1172
return self._initialize_helper(a_bzrdir, utf8_files)
1174
def open(self, a_bzrdir, _found=False):
1175
"""Return the branch object for a_bzrdir
1177
_found is a private parameter, do not use it. It is used to indicate
1178
if format probing has already be done.
1181
format = BranchFormat.find_format(a_bzrdir)
1182
assert format.__class__ == self.__class__
1183
transport = a_bzrdir.get_branch_transport(None)
1184
control_files = lockable_files.LockableFiles(transport, 'lock',
1186
return BzrBranch6(_format=self,
1187
_control_files=control_files,
1189
_repository=a_bzrdir.find_repository())
1191
def supports_tags(self):
1195
class BranchReferenceFormat(BranchFormat):
1196
"""Bzr branch reference format.
1198
Branch references are used in implementing checkouts, they
1199
act as an alias to the real branch which is at some other url.
1206
def get_format_string(self):
1207
"""See BranchFormat.get_format_string()."""
1208
return "Bazaar-NG Branch Reference Format 1\n"
1210
def get_format_description(self):
1211
"""See BranchFormat.get_format_description()."""
1212
return "Checkout reference format 1"
1214
def get_reference(self, a_bzrdir):
1215
"""See BranchFormat.get_reference()."""
1216
transport = a_bzrdir.get_branch_transport(None)
1217
return transport.get('location').read()
1219
def set_reference(self, a_bzrdir, to_branch):
1220
"""See BranchFormat.set_reference()."""
1221
transport = a_bzrdir.get_branch_transport(None)
1222
location = transport.put_bytes('location', to_branch.base)
1224
def initialize(self, a_bzrdir, target_branch=None):
1225
"""Create a branch of this format in a_bzrdir."""
1226
if target_branch is None:
1227
# this format does not implement branch itself, thus the implicit
1228
# creation contract must see it as uninitializable
1229
raise errors.UninitializableFormat(self)
1230
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1231
branch_transport = a_bzrdir.get_branch_transport(self)
1232
branch_transport.put_bytes('location',
1233
target_branch.bzrdir.root_transport.base)
1234
branch_transport.put_bytes('format', self.get_format_string())
1236
a_bzrdir, _found=True,
1237
possible_transports=[target_branch.bzrdir.root_transport])
1240
super(BranchReferenceFormat, self).__init__()
1241
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1243
def _make_reference_clone_function(format, a_branch):
1244
"""Create a clone() routine for a branch dynamically."""
1245
def clone(to_bzrdir, revision_id=None):
1246
"""See Branch.clone()."""
1247
return format.initialize(to_bzrdir, a_branch)
1248
# cannot obey revision_id limits when cloning a reference ...
1249
# FIXME RBC 20060210 either nuke revision_id for clone, or
1250
# emit some sort of warning/error to the caller ?!
1253
def open(self, a_bzrdir, _found=False, location=None,
1254
possible_transports=None):
1255
"""Return the branch that the branch reference in a_bzrdir points at.
1257
_found is a private parameter, do not use it. It is used to indicate
1258
if format probing has already be done.
1261
format = BranchFormat.find_format(a_bzrdir)
1262
assert format.__class__ == self.__class__
1263
if location is None:
1264
location = self.get_reference(a_bzrdir)
1265
real_bzrdir = bzrdir.BzrDir.open(
1266
location, possible_transports=possible_transports)
1267
result = real_bzrdir.open_branch()
1268
# this changes the behaviour of result.clone to create a new reference
1269
# rather than a copy of the content of the branch.
1270
# I did not use a proxy object because that needs much more extensive
1271
# testing, and we are only changing one behaviour at the moment.
1272
# If we decide to alter more behaviours - i.e. the implicit nickname
1273
# then this should be refactored to introduce a tested proxy branch
1274
# and a subclass of that for use in overriding clone() and ....
1276
result.clone = self._make_reference_clone_function(result)
1280
# formats which have no format string are not discoverable
1281
# and not independently creatable, so are not registered.
1282
__format5 = BzrBranchFormat5()
1283
__format6 = BzrBranchFormat6()
1284
BranchFormat.register_format(__format5)
1285
BranchFormat.register_format(BranchReferenceFormat())
1286
BranchFormat.register_format(__format6)
1287
BranchFormat.set_default_format(__format6)
1288
_legacy_formats = [BzrBranchFormat4(),
1291
class BzrBranch(Branch):
1292
"""A branch stored in the actual filesystem.
1294
Note that it's "local" in the context of the filesystem; it doesn't
1295
really matter if it's on an nfs/smb/afs/coda/... share, as long as
1296
it's writable, and can be accessed via the normal filesystem API.
1299
def __init__(self, _format=None,
1300
_control_files=None, a_bzrdir=None, _repository=None):
1301
"""Create new branch object at a particular location."""
1302
Branch.__init__(self)
1303
if a_bzrdir is None:
1304
raise ValueError('a_bzrdir must be supplied')
1306
self.bzrdir = a_bzrdir
1307
# self._transport used to point to the directory containing the
1308
# control directory, but was not used - now it's just the transport
1309
# for the branch control files. mbp 20070212
1310
self._base = self.bzrdir.transport.clone('..').base
1311
self._format = _format
1312
if _control_files is None:
1313
raise ValueError('BzrBranch _control_files is None')
1314
self.control_files = _control_files
1315
self._transport = _control_files._transport
1316
self.repository = _repository
1319
return '%s(%r)' % (self.__class__.__name__, self.base)
1323
def _get_base(self):
1324
"""Returns the directory containing the control directory."""
1327
base = property(_get_base, doc="The URL for the root of this branch.")
1329
def abspath(self, name):
1330
"""See Branch.abspath."""
1331
return self.control_files._transport.abspath(name)
1334
@deprecated_method(zero_sixteen)
1336
def get_root_id(self):
1337
"""See Branch.get_root_id."""
1338
tree = self.repository.revision_tree(self.last_revision())
1339
return tree.get_root_id()
1341
def is_locked(self):
1342
return self.control_files.is_locked()
1344
def lock_write(self, token=None):
1345
repo_token = self.repository.lock_write()
1347
token = self.control_files.lock_write(token=token)
1349
self.repository.unlock()
1353
def lock_read(self):
1354
self.repository.lock_read()
1356
self.control_files.lock_read()
1358
self.repository.unlock()
1362
# TODO: test for failed two phase locks. This is known broken.
1364
self.control_files.unlock()
1366
self.repository.unlock()
1367
if not self.control_files.is_locked():
1368
# we just released the lock
1369
self._clear_cached_state()
1371
def peek_lock_mode(self):
1372
if self.control_files._lock_count == 0:
1375
return self.control_files._lock_mode
1377
def get_physical_lock_status(self):
1378
return self.control_files.get_physical_lock_status()
1381
def print_file(self, file, revision_id):
1382
"""See Branch.print_file."""
1383
return self.repository.print_file(file, revision_id)
1385
def _write_revision_history(self, history):
1386
"""Factored out of set_revision_history.
1388
This performs the actual writing to disk.
1389
It is intended to be called by BzrBranch5.set_revision_history."""
1390
self.control_files.put_bytes(
1391
'revision-history', '\n'.join(history))
1394
def set_revision_history(self, rev_history):
1395
"""See Branch.set_revision_history."""
1396
if 'evil' in debug.debug_flags:
1397
mutter_callsite(3, "set_revision_history scales with history.")
1398
self._clear_cached_state()
1399
self._write_revision_history(rev_history)
1400
self._cache_revision_history(rev_history)
1401
for hook in Branch.hooks['set_rh']:
1402
hook(self, rev_history)
1405
def set_last_revision_info(self, revno, revision_id):
1406
"""Set the last revision of this branch.
1408
The caller is responsible for checking that the revno is correct
1409
for this revision id.
1411
It may be possible to set the branch last revision to an id not
1412
present in the repository. However, branches can also be
1413
configured to check constraints on history, in which case this may not
1416
history = self._lefthand_history(revision_id)
1417
assert len(history) == revno, '%d != %d' % (len(history), revno)
1418
self.set_revision_history(history)
1420
def _gen_revision_history(self):
1421
history = self.control_files.get('revision-history').read().split('\n')
1422
if history[-1:] == ['']:
1423
# There shouldn't be a trailing newline, but just in case.
1427
def _lefthand_history(self, revision_id, last_rev=None,
1429
if 'evil' in debug.debug_flags:
1430
mutter_callsite(4, "_lefthand_history scales with history.")
1431
# stop_revision must be a descendant of last_revision
1432
stop_graph = self.repository.get_revision_graph(revision_id)
1433
if (last_rev is not None and last_rev != _mod_revision.NULL_REVISION
1434
and last_rev not in stop_graph):
1435
# our previous tip is not merged into stop_revision
1436
raise errors.DivergedBranches(self, other_branch)
1437
# make a new revision history from the graph
1438
current_rev_id = revision_id
1440
while current_rev_id not in (None, _mod_revision.NULL_REVISION):
1441
new_history.append(current_rev_id)
1442
current_rev_id_parents = stop_graph[current_rev_id]
1444
current_rev_id = current_rev_id_parents[0]
1446
current_rev_id = None
1447
new_history.reverse()
1451
def generate_revision_history(self, revision_id, last_rev=None,
1453
"""Create a new revision history that will finish with revision_id.
1455
:param revision_id: the new tip to use.
1456
:param last_rev: The previous last_revision. If not None, then this
1457
must be a ancestory of revision_id, or DivergedBranches is raised.
1458
:param other_branch: The other branch that DivergedBranches should
1459
raise with respect to.
1461
self.set_revision_history(self._lefthand_history(revision_id,
1462
last_rev, other_branch))
1465
def update_revisions(self, other, stop_revision=None, overwrite=False):
1466
"""See Branch.update_revisions."""
1469
other_last_revno, other_last_revision = other.last_revision_info()
1470
if stop_revision is None:
1471
stop_revision = other_last_revision
1472
if _mod_revision.is_null(stop_revision):
1473
# if there are no commits, we're done.
1475
# whats the current last revision, before we fetch [and change it
1477
last_rev = _mod_revision.ensure_null(self.last_revision())
1478
# we fetch here so that we don't process data twice in the common
1479
# case of having something to pull, and so that the check for
1480
# already merged can operate on the just fetched graph, which will
1481
# be cached in memory.
1482
self.fetch(other, stop_revision)
1483
# Check to see if one is an ancestor of the other
1485
heads = self.repository.get_graph().heads([stop_revision,
1487
if heads == set([last_rev]):
1488
# The current revision is a decendent of the target,
1491
elif heads == set([stop_revision, last_rev]):
1492
# These branches have diverged
1493
raise errors.DivergedBranches(self, other)
1494
assert heads == set([stop_revision])
1495
if other_last_revision == stop_revision:
1496
self.set_last_revision_info(other_last_revno,
1497
other_last_revision)
1499
# TODO: jam 2007-11-29 Is there a way to determine the
1500
# revno without searching all of history??
1502
self.generate_revision_history(stop_revision)
1504
self.generate_revision_history(stop_revision,
1505
last_rev=last_rev, other_branch=other)
1509
def basis_tree(self):
1510
"""See Branch.basis_tree."""
1511
return self.repository.revision_tree(self.last_revision())
1514
def pull(self, source, overwrite=False, stop_revision=None,
1515
_hook_master=None, run_hooks=True, possible_transports=None):
1518
:param _hook_master: Private parameter - set the branch to
1519
be supplied as the master to push hooks.
1520
:param run_hooks: Private parameter - if false, this branch
1521
is being called because it's the master of the primary branch,
1522
so it should not run its hooks.
1524
result = PullResult()
1525
result.source_branch = source
1526
result.target_branch = self
1529
result.old_revno, result.old_revid = self.last_revision_info()
1530
self.update_revisions(source, stop_revision, overwrite=overwrite)
1531
result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
1532
result.new_revno, result.new_revid = self.last_revision_info()
1534
result.master_branch = _hook_master
1535
result.local_branch = self
1537
result.master_branch = self
1538
result.local_branch = None
1540
for hook in Branch.hooks['post_pull']:
1546
def _get_parent_location(self):
1547
_locs = ['parent', 'pull', 'x-pull']
1550
return self.control_files.get(l).read().strip('\n')
1556
def push(self, target, overwrite=False, stop_revision=None,
1557
_override_hook_source_branch=None):
1560
This is the basic concrete implementation of push()
1562
:param _override_hook_source_branch: If specified, run
1563
the hooks passing this Branch as the source, rather than self.
1564
This is for use of RemoteBranch, where push is delegated to the
1565
underlying vfs-based Branch.
1567
# TODO: Public option to disable running hooks - should be trivial but
1571
result = self._push_with_bound_branches(target, overwrite,
1573
_override_hook_source_branch=_override_hook_source_branch)
1578
def _push_with_bound_branches(self, target, overwrite,
1580
_override_hook_source_branch=None):
1581
"""Push from self into target, and into target's master if any.
1583
This is on the base BzrBranch class even though it doesn't support
1584
bound branches because the *target* might be bound.
1587
if _override_hook_source_branch:
1588
result.source_branch = _override_hook_source_branch
1589
for hook in Branch.hooks['post_push']:
1592
bound_location = target.get_bound_location()
1593
if bound_location and target.base != bound_location:
1594
# there is a master branch.
1596
# XXX: Why the second check? Is it even supported for a branch to
1597
# be bound to itself? -- mbp 20070507
1598
master_branch = target.get_master_branch()
1599
master_branch.lock_write()
1601
# push into the master from this branch.
1602
self._basic_push(master_branch, overwrite, stop_revision)
1603
# and push into the target branch from this. Note that we push from
1604
# this branch again, because its considered the highest bandwidth
1606
result = self._basic_push(target, overwrite, stop_revision)
1607
result.master_branch = master_branch
1608
result.local_branch = target
1612
master_branch.unlock()
1615
result = self._basic_push(target, overwrite, stop_revision)
1616
# TODO: Why set master_branch and local_branch if there's no
1617
# binding? Maybe cleaner to just leave them unset? -- mbp
1619
result.master_branch = target
1620
result.local_branch = None
1624
def _basic_push(self, target, overwrite, stop_revision):
1625
"""Basic implementation of push without bound branches or hooks.
1627
Must be called with self read locked and target write locked.
1629
result = PushResult()
1630
result.source_branch = self
1631
result.target_branch = target
1632
result.old_revno, result.old_revid = target.last_revision_info()
1634
target.update_revisions(self, stop_revision)
1635
except DivergedBranches:
1639
target.set_revision_history(self.revision_history())
1640
result.tag_conflicts = self.tags.merge_to(target.tags, overwrite)
1641
result.new_revno, result.new_revid = target.last_revision_info()
1644
def get_parent(self):
1645
"""See Branch.get_parent."""
1647
assert self.base[-1] == '/'
1648
parent = self._get_parent_location()
1651
# This is an old-format absolute path to a local branch
1652
# turn it into a url
1653
if parent.startswith('/'):
1654
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1656
return urlutils.join(self.base[:-1], parent)
1657
except errors.InvalidURLJoin, e:
1658
raise errors.InaccessibleParent(parent, self.base)
1660
def set_push_location(self, location):
1661
"""See Branch.set_push_location."""
1662
self.get_config().set_user_option(
1663
'push_location', location,
1664
store=_mod_config.STORE_LOCATION_NORECURSE)
1667
def set_parent(self, url):
1668
"""See Branch.set_parent."""
1669
# TODO: Maybe delete old location files?
1670
# URLs should never be unicode, even on the local fs,
1671
# FIXUP this and get_parent in a future branch format bump:
1672
# read and rewrite the file, and have the new format code read
1673
# using .get not .get_utf8. RBC 20060125
1675
if isinstance(url, unicode):
1677
url = url.encode('ascii')
1678
except UnicodeEncodeError:
1679
raise errors.InvalidURL(url,
1680
"Urls must be 7-bit ascii, "
1681
"use bzrlib.urlutils.escape")
1682
url = urlutils.relative_url(self.base, url)
1683
self._set_parent_location(url)
1685
def _set_parent_location(self, url):
1687
self.control_files._transport.delete('parent')
1689
assert isinstance(url, str)
1690
self.control_files.put_bytes('parent', url + '\n')
1693
class BzrBranch5(BzrBranch):
1694
"""A format 5 branch. This supports new features over plain branches.
1696
It has support for a master_branch which is the data for bound branches.
1704
super(BzrBranch5, self).__init__(_format=_format,
1705
_control_files=_control_files,
1707
_repository=_repository)
1710
def pull(self, source, overwrite=False, stop_revision=None,
1711
run_hooks=True, possible_transports=None):
1712
"""Pull from source into self, updating my master if any.
1714
:param run_hooks: Private parameter - if false, this branch
1715
is being called because it's the master of the primary branch,
1716
so it should not run its hooks.
1718
bound_location = self.get_bound_location()
1719
master_branch = None
1720
if bound_location and source.base != bound_location:
1721
# not pulling from master, so we need to update master.
1722
master_branch = self.get_master_branch(possible_transports)
1723
master_branch.lock_write()
1726
# pull from source into master.
1727
master_branch.pull(source, overwrite, stop_revision,
1729
return super(BzrBranch5, self).pull(source, overwrite,
1730
stop_revision, _hook_master=master_branch,
1731
run_hooks=run_hooks)
1734
master_branch.unlock()
1736
def get_bound_location(self):
1738
return self.control_files.get_utf8('bound').read()[:-1]
1739
except errors.NoSuchFile:
1743
def get_master_branch(self, possible_transports=None):
1744
"""Return the branch we are bound to.
1746
:return: Either a Branch, or None
1748
This could memoise the branch, but if thats done
1749
it must be revalidated on each new lock.
1750
So for now we just don't memoise it.
1751
# RBC 20060304 review this decision.
1753
bound_loc = self.get_bound_location()
1757
return Branch.open(bound_loc,
1758
possible_transports=possible_transports)
1759
except (errors.NotBranchError, errors.ConnectionError), e:
1760
raise errors.BoundBranchConnectionFailure(
1764
def set_bound_location(self, location):
1765
"""Set the target where this branch is bound to.
1767
:param location: URL to the target branch
1770
self.control_files.put_utf8('bound', location+'\n')
1773
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')
1779
def bind(self, other):
1780
"""Bind this branch to the branch other.
1782
This does not push or pull data between the branches, though it does
1783
check for divergence to raise an error when the branches are not
1784
either the same, or one a prefix of the other. That behaviour may not
1785
be useful, so that check may be removed in future.
1787
:param other: The branch to bind to
1790
# TODO: jam 20051230 Consider checking if the target is bound
1791
# It is debatable whether you should be able to bind to
1792
# a branch which is itself bound.
1793
# Committing is obviously forbidden,
1794
# but binding itself may not be.
1795
# Since we *have* to check at commit time, we don't
1796
# *need* to check here
1798
# we want to raise diverged if:
1799
# last_rev is not in the other_last_rev history, AND
1800
# other_last_rev is not in our history, and do it without pulling
1802
self.set_bound_location(other.base)
1806
"""If bound, unbind"""
1807
return self.set_bound_location(None)
1810
def update(self, possible_transports=None):
1811
"""Synchronise this branch with the master branch if any.
1813
:return: None or the last_revision that was pivoted out during the
1816
master = self.get_master_branch(possible_transports)
1817
if master is not None:
1818
old_tip = _mod_revision.ensure_null(self.last_revision())
1819
self.pull(master, overwrite=True)
1820
if self.repository.get_graph().is_ancestor(old_tip,
1821
_mod_revision.ensure_null(self.last_revision())):
1827
class BzrBranch6(BzrBranch5):
1830
def last_revision_info(self):
1831
revision_string = self.control_files.get('last-revision').read()
1832
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
1833
revision_id = cache_utf8.get_cached_utf8(revision_id)
1835
return revno, revision_id
1837
def _write_last_revision_info(self, revno, revision_id):
1838
"""Simply write out the revision id, with no checks.
1840
Use set_last_revision_info to perform this safely.
1842
Does not update the revision_history cache.
1843
Intended to be called by set_last_revision_info and
1844
_write_revision_history.
1846
if revision_id is None:
1847
revision_id = 'null:'
1848
out_string = '%d %s\n' % (revno, revision_id)
1849
self.control_files.put_bytes('last-revision', out_string)
1852
def set_last_revision_info(self, revno, revision_id):
1853
if self._get_append_revisions_only():
1854
self._check_history_violation(revision_id)
1855
self._write_last_revision_info(revno, revision_id)
1856
self._clear_cached_state()
1858
def _check_history_violation(self, revision_id):
1859
last_revision = _mod_revision.ensure_null(self.last_revision())
1860
if _mod_revision.is_null(last_revision):
1862
if last_revision not in self._lefthand_history(revision_id):
1863
raise errors.AppendRevisionsOnlyViolation(self.base)
1865
def _gen_revision_history(self):
1866
"""Generate the revision history from last revision
1868
history = list(self.repository.iter_reverse_revision_history(
1869
self.last_revision()))
1873
def _write_revision_history(self, history):
1874
"""Factored out of set_revision_history.
1876
This performs the actual writing to disk, with format-specific checks.
1877
It is intended to be called by BzrBranch5.set_revision_history.
1879
if len(history) == 0:
1880
last_revision = 'null:'
1882
if history != self._lefthand_history(history[-1]):
1883
raise errors.NotLefthandHistory(history)
1884
last_revision = history[-1]
1885
if self._get_append_revisions_only():
1886
self._check_history_violation(last_revision)
1887
self._write_last_revision_info(len(history), last_revision)
1890
def _set_parent_location(self, url):
1891
"""Set the parent branch"""
1892
self._set_config_location('parent_location', url, make_relative=True)
1895
def _get_parent_location(self):
1896
"""Set the parent branch"""
1897
return self._get_config_location('parent_location')
1899
def set_push_location(self, location):
1900
"""See Branch.set_push_location."""
1901
self._set_config_location('push_location', location)
1903
def set_bound_location(self, location):
1904
"""See Branch.set_push_location."""
1906
config = self.get_config()
1907
if location is None:
1908
if config.get_user_option('bound') != 'True':
1911
config.set_user_option('bound', 'False', warn_masked=True)
1914
self._set_config_location('bound_location', location,
1916
config.set_user_option('bound', 'True', warn_masked=True)
1919
def _get_bound_location(self, bound):
1920
"""Return the bound location in the config file.
1922
Return None if the bound parameter does not match"""
1923
config = self.get_config()
1924
config_bound = (config.get_user_option('bound') == 'True')
1925
if config_bound != bound:
1927
return self._get_config_location('bound_location', config=config)
1929
def get_bound_location(self):
1930
"""See Branch.set_push_location."""
1931
return self._get_bound_location(True)
1933
def get_old_bound_location(self):
1934
"""See Branch.get_old_bound_location"""
1935
return self._get_bound_location(False)
1937
def set_append_revisions_only(self, enabled):
1942
self.get_config().set_user_option('append_revisions_only', value,
1945
def _get_append_revisions_only(self):
1946
value = self.get_config().get_user_option('append_revisions_only')
1947
return value == 'True'
1949
def _synchronize_history(self, destination, revision_id):
1950
"""Synchronize last revision and revision history between branches.
1952
This version is most efficient when the destination is also a
1953
BzrBranch6, but works for BzrBranch5, as long as the destination's
1954
repository contains all the lefthand ancestors of the intended
1955
last_revision. If not, set_last_revision_info will fail.
1957
:param destination: The branch to copy the history into
1958
:param revision_id: The revision-id to truncate history at. May
1959
be None to copy complete history.
1961
source_revno, source_revision_id = self.last_revision_info()
1962
if revision_id is None:
1963
revno, revision_id = source_revno, source_revision_id
1964
elif source_revision_id == revision_id:
1965
# we know the revno without needing to walk all of history
1966
revno = source_revno
1968
# To figure out the revno for a random revision, we need to build
1969
# the revision history, and count its length.
1970
# We don't care about the order, just how long it is.
1971
# Alternatively, we could start at the current location, and count
1972
# backwards. But there is no guarantee that we will find it since
1973
# it may be a merged revision.
1974
revno = len(list(self.repository.iter_reverse_revision_history(
1976
destination.set_last_revision_info(revno, revision_id)
1978
def _make_tags(self):
1979
return BasicTags(self)
1982
######################################################################
1983
# results of operations
1986
class _Result(object):
1988
def _show_tag_conficts(self, to_file):
1989
if not getattr(self, 'tag_conflicts', None):
1991
to_file.write('Conflicting tags:\n')
1992
for name, value1, value2 in self.tag_conflicts:
1993
to_file.write(' %s\n' % (name, ))
1996
class PullResult(_Result):
1997
"""Result of a Branch.pull operation.
1999
:ivar old_revno: Revision number before pull.
2000
:ivar new_revno: Revision number after pull.
2001
:ivar old_revid: Tip revision id before pull.
2002
:ivar new_revid: Tip revision id after pull.
2003
:ivar source_branch: Source (local) branch object.
2004
:ivar master_branch: Master branch of the target, or None.
2005
:ivar target_branch: Target/destination branch object.
2009
# DEPRECATED: pull used to return the change in revno
2010
return self.new_revno - self.old_revno
2012
def report(self, to_file):
2014
if self.old_revid == self.new_revid:
2015
to_file.write('No revisions to pull.\n')
2017
to_file.write('Now on revision %d.\n' % self.new_revno)
2018
self._show_tag_conficts(to_file)
2021
class PushResult(_Result):
2022
"""Result of a Branch.push operation.
2024
:ivar old_revno: Revision number before push.
2025
:ivar new_revno: Revision number after push.
2026
:ivar old_revid: Tip revision id before push.
2027
:ivar new_revid: Tip revision id after push.
2028
:ivar source_branch: Source branch object.
2029
:ivar master_branch: Master branch of the target, or None.
2030
:ivar target_branch: Target/destination branch object.
2034
# DEPRECATED: push used to return the change in revno
2035
return self.new_revno - self.old_revno
2037
def report(self, to_file):
2038
"""Write a human-readable description of the result."""
2039
if self.old_revid == self.new_revid:
2040
to_file.write('No new revisions to push.\n')
2042
to_file.write('Pushed up to revision %d.\n' % self.new_revno)
2043
self._show_tag_conficts(to_file)
2046
class BranchCheckResult(object):
2047
"""Results of checking branch consistency.
2052
def __init__(self, branch):
2053
self.branch = branch
2055
def report_results(self, verbose):
2056
"""Report the check results via trace.note.
2058
:param verbose: Requests more detailed display of what was checked,
2061
note('checked branch %s format %s',
2063
self.branch._format)
2066
class Converter5to6(object):
2067
"""Perform an in-place upgrade of format 5 to format 6"""
2069
def convert(self, branch):
2070
# Data for 5 and 6 can peacefully coexist.
2071
format = BzrBranchFormat6()
2072
new_branch = format.open(branch.bzrdir, _found=True)
2074
# Copy source data into target
2075
new_branch.set_last_revision_info(*branch.last_revision_info())
2076
new_branch.set_parent(branch.get_parent())
2077
new_branch.set_bound_location(branch.get_bound_location())
2078
new_branch.set_push_location(branch.get_push_location())
2080
# New branch has no tags by default
2081
new_branch.tags._set_tag_dict({})
2083
# Copying done; now update target format
2084
new_branch.control_files.put_utf8('format',
2085
format.get_format_string())
2087
# Clean up old files
2088
new_branch.control_files._transport.delete('revision-history')
2090
branch.set_parent(None)
2093
branch.set_bound_location(None)
added
removed
bzrlib/branch.py
