137
73
"""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.
76
Base directory/url of the branch.
78
hooks: An instance of BranchHooks.
80
# 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.
84
# override this to set the strategy for storing tags
86
return DisabledTags(self)
88
def __init__(self, *ignored, **ignored_too):
89
self.tags = self._make_tags()
90
self._revision_history_cache = None
91
self._revision_id_to_revno_cache = None
92
self._last_revision_info_cache = None
96
"""Called by init to allow simpler extension of the base class."""
99
"""Break a lock if one is present from another instance.
101
Uses the ui factory to ask for confirmation if the lock may be from
104
This will probe the repository for its lock as well.
106
self.control_files.break_lock()
107
self.repository.break_lock()
108
master = self.get_master_branch()
109
if master is not None:
113
def open(base, _unsupported=False, possible_transports=None):
114
"""Open the branch rooted at base.
116
For instance, if the branch is at URL/.bzr/branch,
117
Branch.open(URL) -> a Branch instance.
119
control = bzrdir.BzrDir.open(base, _unsupported,
120
possible_transports=possible_transports)
121
return control.open_branch(_unsupported)
124
def open_from_transport(transport, _unsupported=False):
125
"""Open the branch rooted at transport"""
126
control = bzrdir.BzrDir.open_from_transport(transport, _unsupported)
127
return control.open_branch(_unsupported)
130
def open_containing(url, possible_transports=None):
131
"""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.
133
This probes for a branch at url, and searches upwards from there.
135
Basically we keep looking up until we find the control directory or
136
run into the root. If there isn't one, raises NotBranchError.
137
If there is one and it is either an unrecognised format or an unsupported
138
format, UnknownFormatError or UnsupportedFormatError are raised.
139
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)
141
control, relpath = bzrdir.BzrDir.open_containing(url,
143
return control.open_branch(), relpath
145
def get_config(self):
146
return BranchConfig(self)
149
return self.get_config().get_nickname()
151
def _set_nick(self, nick):
152
self.get_config().set_user_option('nickname', nick, warn_masked=True)
154
nick = property(_get_nick, _set_nick)
157
raise NotImplementedError(self.is_locked)
212
159
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'
160
raise NotImplementedError(self.lock_write)
228
162
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'
163
raise NotImplementedError(self.lock_read)
242
165
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
252
self._lock_mode = self._lock_count = None
255
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
166
raise NotImplementedError(self.unlock)
168
def peek_lock_mode(self):
169
"""Return lock mode for the Branch: 'r', 'w' or None"""
170
raise NotImplementedError(self.peek_lock_mode)
172
def get_physical_lock_status(self):
173
raise NotImplementedError(self.get_physical_lock_status)
176
def get_revision_id_to_revno_map(self):
177
"""Return the revision_id => dotted revno map.
179
This will be regenerated on demand, but will be cached.
181
:return: A dictionary mapping revision_id => dotted revno.
182
This dictionary should not be modified by the caller.
184
if self._revision_id_to_revno_cache is not None:
185
mapping = self._revision_id_to_revno_cache
187
mapping = self._gen_revno_map()
188
self._cache_revision_id_to_revno(mapping)
189
# TODO: jam 20070417 Since this is being cached, should we be returning
191
# I would rather not, and instead just declare that users should not
192
# modify the return value.
195
def _gen_revno_map(self):
196
"""Create a new mapping from revision ids to dotted revnos.
198
Dotted revnos are generated based on the current tip in the revision
200
This is the worker function for get_revision_id_to_revno_map, which
201
just caches the return value.
203
:return: A dictionary mapping revision_id => dotted revno.
205
last_revision = self.last_revision()
206
revision_graph = repository._old_get_graph(self.repository,
208
merge_sorted_revisions = tsort.merge_sort(
213
revision_id_to_revno = dict((rev_id, revno)
214
for seq_num, rev_id, depth, revno, end_of_merge
215
in merge_sorted_revisions)
216
return revision_id_to_revno
218
def leave_lock_in_place(self):
219
"""Tell this branch object not to release the physical lock when this
222
If lock_write doesn't return a token, then this method is not supported.
224
self.control_files.leave_in_place()
226
def dont_leave_lock_in_place(self):
227
"""Tell this branch object to release the physical lock when this
228
object is unlocked, even if it didn't originally acquire it.
230
If lock_write doesn't return a token, then this method is not supported.
232
self.control_files.dont_leave_in_place()
234
def bind(self, other):
235
"""Bind the local branch the other branch.
237
:param other: The branch to bind to
240
raise errors.UpgradeRequired(self.base)
243
def fetch(self, from_branch, last_revision=None, pb=None):
244
"""Copy revisions from from_branch into this branch.
246
:param from_branch: Where to copy from.
247
:param last_revision: What revision to stop at (None for at the end
249
:param pb: An optional progress bar to use.
251
Returns the copied revision count and the failed revisions in a tuple:
254
if self.base == from_branch.base:
257
nested_pb = ui.ui_factory.nested_progress_bar()
262
from_branch.lock_read()
264
if last_revision is None:
265
pb.update('get source history')
266
last_revision = from_branch.last_revision()
267
last_revision = _mod_revision.ensure_null(last_revision)
268
return self.repository.fetch(from_branch.repository,
269
revision_id=last_revision,
272
if nested_pb is not None:
276
def get_bound_location(self):
277
"""Return the URL of the branch we are bound to.
279
Older format branches cannot bind, please be sure to use a metadir
284
def get_old_bound_location(self):
285
"""Return the URL of the branch we used to be bound to
287
raise errors.UpgradeRequired(self.base)
289
def get_commit_builder(self, parents, config=None, timestamp=None,
290
timezone=None, committer=None, revprops=None,
292
"""Obtain a CommitBuilder for this branch.
294
:param parents: Revision ids of the parents of the new revision.
295
:param config: Optional configuration to use.
296
:param timestamp: Optional timestamp recorded for commit.
297
:param timezone: Optional timezone for timestamp.
298
:param committer: Optional committer to set for commit.
299
:param revprops: Optional dictionary of revision properties.
300
:param revision_id: Optional revision id.
304
config = self.get_config()
306
return self.repository.get_commit_builder(self, parents, config,
307
timestamp, timezone, committer, revprops, revision_id)
309
def get_master_branch(self, possible_transports=None):
310
"""Return the branch we are bound to.
312
:return: Either a Branch, or None
617
316
def get_revision_delta(self, revno):
618
317
"""Return the delta for one revision.
789
465
common_index = min(self_len, other_len) -1
790
466
if common_index >= 0 and \
791
467
self_history[common_index] != other_history[common_index]:
792
raise DivergedBranches(self, other)
468
raise errors.DivergedBranches(self, other)
794
470
if stop_revision is None:
795
471
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
473
if stop_revision > other_len:
474
raise errors.NoSuchRevision(self, stop_revision)
799
475
return other_history[self_len:stop_revision]
802
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())
1053
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))
1066
def rename_one(self, from_rel, to_rel):
1069
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)
1117
def move(self, from_paths, to_name):
1120
to_name must exist as a versioned directory.
1122
If to_name exists and is a directory, the files are moved into
1123
it, keeping their old names. If it is a directory,
1125
Note that to_name is only the last component of the new name;
1126
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)
478
def update_revisions(self, other, stop_revision=None, overwrite=False,
480
"""Pull in new perfect-fit revisions.
482
:param other: Another Branch to pull from
483
:param stop_revision: Updated until the given revision
484
:param overwrite: Always set the branch pointer, rather than checking
485
to see if it is a proper descendant.
486
:param graph: A Graph object that can be used to query history
487
information. This can be None.
492
other_revno, other_last_revision = other.last_revision_info()
493
stop_revno = None # unknown
494
if stop_revision is None:
495
stop_revision = other_last_revision
496
if _mod_revision.is_null(stop_revision):
497
# if there are no commits, we're done.
499
stop_revno = other_revno
501
# what's the current last revision, before we fetch [and change it
503
last_rev = _mod_revision.ensure_null(self.last_revision())
504
# we fetch here so that we don't process data twice in the common
505
# case of having something to pull, and so that the check for
506
# already merged can operate on the just fetched graph, which will
507
# be cached in memory.
508
self.fetch(other, stop_revision)
509
# Check to see if one is an ancestor of the other
512
graph = self.repository.get_graph()
513
if self._check_if_descendant_or_diverged(
514
stop_revision, last_rev, graph, other):
515
# stop_revision is a descendant of last_rev, but we aren't
516
# overwriting, so we're done.
518
if stop_revno is None:
520
graph = self.repository.get_graph()
521
this_revno, this_last_revision = self.last_revision_info()
522
stop_revno = graph.find_distance_to_null(stop_revision,
523
[(other_last_revision, other_revno),
524
(this_last_revision, this_revno)])
525
self.set_last_revision_info(stop_revno, stop_revision)
529
def revision_id_to_revno(self, revision_id):
530
"""Given a revision id, return its revno"""
531
if _mod_revision.is_null(revision_id):
533
history = self.revision_history()
535
return history.index(revision_id) + 1
537
raise errors.NoSuchRevision(self, revision_id)
539
def get_rev_id(self, revno, history=None):
540
"""Find the revision id of the specified revno."""
542
return _mod_revision.NULL_REVISION
544
history = self.revision_history()
545
if revno <= 0 or revno > len(history):
546
raise errors.NoSuchRevision(self, revno)
547
return history[revno - 1]
549
def pull(self, source, overwrite=False, stop_revision=None,
550
possible_transports=None, _override_hook_target=None):
551
"""Mirror source into this branch.
553
This branch is considered to be 'local', having low latency.
555
:returns: PullResult instance
557
raise NotImplementedError(self.pull)
559
def push(self, target, overwrite=False, stop_revision=None):
560
"""Mirror this branch into target.
562
This branch is considered to be 'local', having low latency.
564
raise NotImplementedError(self.push)
566
def basis_tree(self):
567
"""Return `Tree` object for last revision."""
568
return self.repository.revision_tree(self.last_revision())
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 errors.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 = to_bzrdir.create_branch()
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
to_bzrdir controls the branch format.
685
revision_id: if not None, the revision history in the new branch will
686
be truncated to end with revision_id.
688
result = to_bzrdir.create_branch()
689
self.copy_content_into(result, revision_id=revision_id)
690
result.set_parent(self.bzrdir.root_transport.base)
693
def _synchronize_history(self, destination, revision_id):
694
"""Synchronize last revision and revision history between branches.
696
This version is most efficient when the destination is also a
697
BzrBranch5, but works for BzrBranch6 as long as the revision
698
history is the true lefthand parent history, and all of the revisions
699
are in the destination's repository. If not, set_revision_history
702
:param destination: The branch to copy the history into
703
:param revision_id: The revision-id to truncate history at. May
704
be None to copy complete history.
706
if revision_id == _mod_revision.NULL_REVISION:
709
new_history = self.revision_history()
710
if revision_id is not None and new_history != []:
712
new_history = new_history[:new_history.index(revision_id) + 1]
714
rev = self.repository.get_revision(revision_id)
715
new_history = rev.get_history(self.repository)[1:]
716
destination.set_revision_history(new_history)
719
def copy_content_into(self, destination, revision_id=None):
720
"""Copy the content of self into destination.
722
revision_id: if not None, the revision history in the new branch will
723
be truncated to end with revision_id.
725
self._synchronize_history(destination, revision_id)
727
parent = self.get_parent()
728
except errors.InaccessibleParent, e:
729
mutter('parent was not accessible to copy: %s', e)
732
destination.set_parent(parent)
733
self.tags.merge_to(destination.tags)
737
"""Check consistency of the branch.
739
In particular this checks that revisions given in the revision-history
740
do actually match up in the revision graph, and that they're all
741
present in the repository.
743
Callers will typically also want to check the repository.
745
:return: A BranchCheckResult.
747
mainline_parent_id = None
748
last_revno, last_revision_id = self.last_revision_info()
749
real_rev_history = list(self.repository.iter_reverse_revision_history(
751
real_rev_history.reverse()
752
if len(real_rev_history) != last_revno:
753
raise errors.BzrCheckError('revno does not match len(mainline)'
754
' %s != %s' % (last_revno, len(real_rev_history)))
755
# TODO: We should probably also check that real_rev_history actually
756
# matches self.revision_history()
757
for revision_id in real_rev_history:
759
revision = self.repository.get_revision(revision_id)
760
except errors.NoSuchRevision, e:
761
raise errors.BzrCheckError("mainline revision {%s} not in repository"
763
# In general the first entry on the revision history has no parents.
764
# But it's not illegal for it to have parents listed; this can happen
765
# in imports from Arch when the parents weren't reachable.
766
if mainline_parent_id is not None:
767
if mainline_parent_id not in revision.parent_ids:
768
raise errors.BzrCheckError("previous revision {%s} not listed among "
770
% (mainline_parent_id, revision_id))
771
mainline_parent_id = revision_id
772
return BranchCheckResult(self)
774
def _get_checkout_format(self):
775
"""Return the most suitable metadir for a checkout of this branch.
776
Weaves are used if this branch's repository uses weaves.
778
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
779
from bzrlib.repofmt import weaverepo
780
format = bzrdir.BzrDirMetaFormat1()
781
format.repository_format = weaverepo.RepositoryFormat7()
783
format = self.repository.bzrdir.checkout_metadir()
784
format.set_branch_format(self._format)
787
def create_checkout(self, to_location, revision_id=None,
788
lightweight=False, accelerator_tree=None,
790
"""Create a checkout of a branch.
792
:param to_location: The url to produce the checkout at
793
:param revision_id: The revision to check out
794
:param lightweight: If True, produce a lightweight checkout, otherwise,
795
produce a bound branch (heavyweight checkout)
796
:param accelerator_tree: A tree which can be used for retrieving file
797
contents more quickly than the revision tree, i.e. a workingtree.
798
The revision tree will be used for cases where accelerator_tree's
799
content is different.
800
:param hardlink: If true, hard-link files from accelerator_tree,
802
:return: The tree of the created checkout
804
t = transport.get_transport(to_location)
807
format = self._get_checkout_format()
808
checkout = format.initialize_on_transport(t)
809
from_branch = BranchReferenceFormat().initialize(checkout, self)
811
format = self._get_checkout_format()
812
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
813
to_location, force_new_tree=False, format=format)
814
checkout = checkout_branch.bzrdir
815
checkout_branch.bind(self)
816
# pull up to the specified revision_id to set the initial
817
# branch tip correctly, and seed it with history.
818
checkout_branch.pull(self, stop_revision=revision_id)
820
tree = checkout.create_workingtree(revision_id,
821
from_branch=from_branch,
822
accelerator_tree=accelerator_tree,
824
basis_tree = tree.basis_tree()
825
basis_tree.lock_read()
827
for path, file_id in basis_tree.iter_references():
828
reference_parent = self.reference_parent(file_id, path)
829
reference_parent.create_checkout(tree.abspath(path),
830
basis_tree.get_reference_revision(file_id, path),
837
def reconcile(self, thorough=True):
838
"""Make sure the data stored in this branch is consistent."""
839
from bzrlib.reconcile import BranchReconciler
840
reconciler = BranchReconciler(self, thorough=thorough)
841
reconciler.reconcile()
844
def reference_parent(self, file_id, path):
845
"""Return the parent branch for a tree-reference file_id
846
:param file_id: The file_id of the tree reference
847
:param path: The path of the file_id in the tree
848
:return: A branch associated with the file_id
850
# FIXME should provide multiple branches, based on config
851
return Branch.open(self.bzrdir.root_transport.clone(path).base)
853
def supports_tags(self):
854
return self._format.supports_tags()
856
def _check_if_descendant_or_diverged(self, revision_a, revision_b, graph,
858
"""Ensure that revision_b is a descendant of revision_a.
860
This is a helper function for update_revisions.
862
:raises: DivergedBranches if revision_b has diverged from revision_a.
863
:returns: True if revision_b is a descendant of revision_a.
865
relation = self._revision_relations(revision_a, revision_b, graph)
866
if relation == 'b_descends_from_a':
868
elif relation == 'diverged':
869
raise errors.DivergedBranches(self, other_branch)
870
elif relation == 'a_descends_from_b':
873
raise AssertionError("invalid relation: %r" % (relation,))
875
def _revision_relations(self, revision_a, revision_b, graph):
876
"""Determine the relationship between two revisions.
878
:returns: One of: 'a_descends_from_b', 'b_descends_from_a', 'diverged'
880
heads = graph.heads([revision_a, revision_b])
881
if heads == set([revision_b]):
882
return 'b_descends_from_a'
883
elif heads == set([revision_a, revision_b]):
884
# These branches have diverged
886
elif heads == set([revision_a]):
887
return 'a_descends_from_b'
889
raise AssertionError("invalid heads: %r" % (heads,))
892
class BranchFormat(object):
893
"""An encapsulation of the initialization and open routines for a format.
895
Formats provide three things:
896
* An initialization routine,
900
Formats are placed in an dict by their format string for reference
901
during branch opening. Its not required that these be instances, they
902
can be classes themselves with class methods - it simply depends on
903
whether state is needed for a given format or not.
905
Once a format is deprecated, just deprecate the initialize and open
906
methods on the format class. Do not deprecate the object, as the
907
object will be created every time regardless.
910
_default_format = None
911
"""The default format used for new branches."""
914
"""The known formats."""
916
def __eq__(self, other):
917
return self.__class__ is other.__class__
919
def __ne__(self, other):
920
return not (self == other)
923
def find_format(klass, a_bzrdir):
924
"""Return the format for the branch object in a_bzrdir."""
926
transport = a_bzrdir.get_branch_transport(None)
927
format_string = transport.get("format").read()
928
return klass._formats[format_string]
929
except errors.NoSuchFile:
930
raise errors.NotBranchError(path=transport.base)
932
raise errors.UnknownFormatError(format=format_string, kind='branch')
935
def get_default_format(klass):
936
"""Return the current default format."""
937
return klass._default_format
939
def get_reference(self, a_bzrdir):
940
"""Get the target reference of the branch in a_bzrdir.
942
format probing must have been completed before calling
943
this method - it is assumed that the format of the branch
944
in a_bzrdir is correct.
946
:param a_bzrdir: The bzrdir to get the branch data from.
947
:return: None if the branch is not a reference branch.
952
def set_reference(self, a_bzrdir, to_branch):
953
"""Set the target reference of the branch in a_bzrdir.
955
format probing must have been completed before calling
956
this method - it is assumed that the format of the branch
957
in a_bzrdir is correct.
959
:param a_bzrdir: The bzrdir to set the branch reference for.
960
:param to_branch: branch that the checkout is to reference
962
raise NotImplementedError(self.set_reference)
964
def get_format_string(self):
965
"""Return the ASCII format string that identifies this format."""
966
raise NotImplementedError(self.get_format_string)
968
def get_format_description(self):
969
"""Return the short format description for this format."""
970
raise NotImplementedError(self.get_format_description)
972
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
974
"""Initialize a branch in a bzrdir, with specified files
976
:param a_bzrdir: The bzrdir to initialize the branch in
977
:param utf8_files: The files to create as a list of
978
(filename, content) tuples
979
:param set_format: If True, set the format with
980
self.get_format_string. (BzrBranch4 has its format set
982
:return: a branch in this format
984
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
985
branch_transport = a_bzrdir.get_branch_transport(self)
987
'metadir': ('lock', lockdir.LockDir),
988
'branch4': ('branch-lock', lockable_files.TransportLock),
990
lock_name, lock_class = lock_map[lock_type]
991
control_files = lockable_files.LockableFiles(branch_transport,
992
lock_name, lock_class)
993
control_files.create_lock()
994
control_files.lock_write()
996
utf8_files += [('format', self.get_format_string())]
998
for (filename, content) in utf8_files:
999
branch_transport.put_bytes(
1001
mode=a_bzrdir._get_file_mode())
1003
control_files.unlock()
1004
return self.open(a_bzrdir, _found=True)
1006
def initialize(self, a_bzrdir):
1007
"""Create a branch of this format in a_bzrdir."""
1008
raise NotImplementedError(self.initialize)
1010
def is_supported(self):
1011
"""Is this format supported?
1013
Supported formats can be initialized and opened.
1014
Unsupported formats may not support initialization or committing or
1015
some other features depending on the reason for not being supported.
1019
def open(self, a_bzrdir, _found=False):
1020
"""Return the branch object for a_bzrdir
1022
_found is a private parameter, do not use it. It is used to indicate
1023
if format probing has already be done.
1025
raise NotImplementedError(self.open)
1028
def register_format(klass, format):
1029
klass._formats[format.get_format_string()] = format
1032
def set_default_format(klass, format):
1033
klass._default_format = format
1035
def supports_stacking(self):
1036
"""True if this format records a stacked-on branch."""
1040
def unregister_format(klass, format):
1041
del klass._formats[format.get_format_string()]
1044
return self.get_format_string().rstrip()
1046
def supports_tags(self):
1047
"""True if this format supports tags stored in the branch"""
1048
return False # by default
1051
class BranchHooks(Hooks):
1052
"""A dictionary mapping hook name to a list of callables for branch hooks.
1054
e.g. ['set_rh'] Is the list of items to be called when the
1055
set_revision_history function is invoked.
1059
"""Create the default hooks.
1061
These are all empty initially, because by default nothing should get
1064
Hooks.__init__(self)
1065
# Introduced in 0.15:
1066
# invoked whenever the revision history has been set
1067
# with set_revision_history. The api signature is
1068
# (branch, revision_history), and the branch will
1071
# invoked after a push operation completes.
1072
# the api signature is
1074
# containing the members
1075
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1076
# where local is the local target branch or None, master is the target
1077
# master branch, and the rest should be self explanatory. The source
1078
# is read locked and the target branches write locked. Source will
1079
# be the local low-latency branch.
1080
self['post_push'] = []
1081
# invoked after a pull operation completes.
1082
# the api signature is
1084
# containing the members
1085
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
1086
# where local is the local branch or None, master is the target
1087
# master branch, and the rest should be self explanatory. The source
1088
# is read locked and the target branches write locked. The local
1089
# branch is the low-latency branch.
1090
self['post_pull'] = []
1091
# invoked before a commit operation takes place.
1092
# the api signature is
1093
# (local, master, old_revno, old_revid, future_revno, future_revid,
1094
# tree_delta, future_tree).
1095
# old_revid is NULL_REVISION for the first commit to a branch
1096
# tree_delta is a TreeDelta object describing changes from the basis
1097
# revision, hooks MUST NOT modify this delta
1098
# future_tree is an in-memory tree obtained from
1099
# CommitBuilder.revision_tree() and hooks MUST NOT modify this tree
1100
self['pre_commit'] = []
1101
# invoked after a commit operation completes.
1102
# the api signature is
1103
# (local, master, old_revno, old_revid, new_revno, new_revid)
1104
# old_revid is NULL_REVISION for the first commit to a branch.
1105
self['post_commit'] = []
1106
# invoked after a uncommit operation completes.
1107
# the api signature is
1108
# (local, master, old_revno, old_revid, new_revno, new_revid) where
1109
# local is the local branch or None, master is the target branch,
1110
# and an empty branch recieves new_revno of 0, new_revid of None.
1111
self['post_uncommit'] = []
1113
# Invoked before the tip of a branch changes.
1114
# the api signature is
1115
# (params) where params is a ChangeBranchTipParams with the members
1116
# (branch, old_revno, new_revno, old_revid, new_revid)
1117
self['pre_change_branch_tip'] = []
1119
# Invoked after the tip of a branch changes.
1120
# the api signature is
1121
# (params) where params is a ChangeBranchTipParams with the members
1122
# (branch, old_revno, new_revno, old_revid, new_revid)
1123
self['post_change_branch_tip'] = []
1126
# install the default hooks into the Branch class.
1127
Branch.hooks = BranchHooks()
1130
class ChangeBranchTipParams(object):
1131
"""Object holding parameters passed to *_change_branch_tip hooks.
1133
There are 5 fields that hooks may wish to access:
1135
:ivar branch: the branch being changed
1136
:ivar old_revno: revision number before the change
1137
:ivar new_revno: revision number after the change
1138
:ivar old_revid: revision id before the change
1139
:ivar new_revid: revision id after the change
1141
The revid fields are strings. The revno fields are integers.
1144
def __init__(self, branch, old_revno, new_revno, old_revid, new_revid):
1145
"""Create a group of ChangeBranchTip parameters.
1147
:param branch: The branch being changed.
1148
:param old_revno: Revision number before the change.
1149
:param new_revno: Revision number after the change.
1150
:param old_revid: Tip revision id before the change.
1151
:param new_revid: Tip revision id after the change.
1153
self.branch = branch
1154
self.old_revno = old_revno
1155
self.new_revno = new_revno
1156
self.old_revid = old_revid
1157
self.new_revid = new_revid
1159
def __eq__(self, other):
1160
return self.__dict__ == other.__dict__
1163
return "<%s of %s from (%s, %s) to (%s, %s)>" % (
1164
self.__class__.__name__, self.branch,
1165
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1168
class BzrBranchFormat4(BranchFormat):
1169
"""Bzr branch format 4.
1172
- a revision-history file.
1173
- a branch-lock lock file [ to be shared with the bzrdir ]
1176
def get_format_description(self):
1177
"""See BranchFormat.get_format_description()."""
1178
return "Branch format 4"
1180
def initialize(self, a_bzrdir):
1181
"""Create a branch of this format in a_bzrdir."""
1182
utf8_files = [('revision-history', ''),
1183
('branch-name', ''),
1185
return self._initialize_helper(a_bzrdir, utf8_files,
1186
lock_type='branch4', set_format=False)
1189
super(BzrBranchFormat4, self).__init__()
1190
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1192
def open(self, a_bzrdir, _found=False):
1193
"""Return the branch object for a_bzrdir
1195
_found is a private parameter, do not use it. It is used to indicate
1196
if format probing has already be done.
1199
# we are being called directly and must probe.
1200
raise NotImplementedError
1201
return BzrBranch(_format=self,
1202
_control_files=a_bzrdir._control_files,
1204
_repository=a_bzrdir.open_repository())
1207
return "Bazaar-NG branch format 4"
1210
class BranchFormatMetadir(BranchFormat):
1211
"""Common logic for meta-dir based branch formats."""
1213
def _branch_class(self):
1214
"""What class to instantiate on open calls."""
1215
raise NotImplementedError(self._branch_class)
1217
def open(self, a_bzrdir, _found=False):
1218
"""Return the branch object for a_bzrdir.
1220
_found is a private parameter, do not use it. It is used to indicate
1221
if format probing has already be done.
1224
format = BranchFormat.find_format(a_bzrdir)
1225
if format.__class__ != self.__class__:
1226
raise AssertionError("wrong format %r found for %r" %
1229
transport = a_bzrdir.get_branch_transport(None)
1230
control_files = lockable_files.LockableFiles(transport, 'lock',
1232
return self._branch_class()(_format=self,
1233
_control_files=control_files,
1235
_repository=a_bzrdir.find_repository())
1236
except errors.NoSuchFile:
1237
raise errors.NotBranchError(path=transport.base)
1240
super(BranchFormatMetadir, self).__init__()
1241
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1243
def supports_tags(self):
1247
class BzrBranchFormat5(BranchFormatMetadir):
1248
"""Bzr branch format 5.
1251
- a revision-history file.
1253
- a lock dir guarding the branch itself
1254
- all of this stored in a branch/ subdirectory
1255
- works with shared repositories.
1257
This format is new in bzr 0.8.
1260
def _branch_class(self):
1263
def get_format_string(self):
1264
"""See BranchFormat.get_format_string()."""
1265
return "Bazaar-NG branch format 5\n"
1267
def get_format_description(self):
1268
"""See BranchFormat.get_format_description()."""
1269
return "Branch format 5"
1271
def initialize(self, a_bzrdir):
1272
"""Create a branch of this format in a_bzrdir."""
1273
utf8_files = [('revision-history', ''),
1274
('branch-name', ''),
1276
return self._initialize_helper(a_bzrdir, utf8_files)
1278
def supports_tags(self):
1282
class BzrBranchFormat6(BranchFormatMetadir):
1283
"""Branch format with last-revision and tags.
1285
Unlike previous formats, this has no explicit revision history. Instead,
1286
this just stores the last-revision, and the left-hand history leading
1287
up to there is the history.
1289
This format was introduced in bzr 0.15
1290
and became the default in 0.91.
1293
def _branch_class(self):
1296
def get_format_string(self):
1297
"""See BranchFormat.get_format_string()."""
1298
return "Bazaar Branch Format 6 (bzr 0.15)\n"
1300
def get_format_description(self):
1301
"""See BranchFormat.get_format_description()."""
1302
return "Branch format 6"
1304
def initialize(self, a_bzrdir):
1305
"""Create a branch of this format in a_bzrdir."""
1306
utf8_files = [('last-revision', '0 null:\n'),
1307
('branch.conf', ''),
1310
return self._initialize_helper(a_bzrdir, utf8_files)
1313
class BzrBranchFormat7(BranchFormatMetadir):
1314
"""Branch format with last-revision, tags, and a stacked location pointer.
1316
The stacked location pointer is passed down to the repository and requires
1317
a repository format with supports_external_lookups = True.
1319
This format was introduced in bzr 1.6.
1322
def _branch_class(self):
1325
def get_format_string(self):
1326
"""See BranchFormat.get_format_string()."""
1327
return "Bazaar Branch Format 7 (needs bzr 1.6)\n"
1329
def get_format_description(self):
1330
"""See BranchFormat.get_format_description()."""
1331
return "Branch format 7"
1333
def initialize(self, a_bzrdir):
1334
"""Create a branch of this format in a_bzrdir."""
1335
utf8_files = [('last-revision', '0 null:\n'),
1336
('branch.conf', ''),
1339
return self._initialize_helper(a_bzrdir, utf8_files)
1342
super(BzrBranchFormat7, self).__init__()
1343
self._matchingbzrdir.repository_format = \
1344
RepositoryFormatPackDevelopment1Subtree()
1346
def supports_stacking(self):
1350
class BranchReferenceFormat(BranchFormat):
1351
"""Bzr branch reference format.
1353
Branch references are used in implementing checkouts, they
1354
act as an alias to the real branch which is at some other url.
1361
def get_format_string(self):
1362
"""See BranchFormat.get_format_string()."""
1363
return "Bazaar-NG Branch Reference Format 1\n"
1365
def get_format_description(self):
1366
"""See BranchFormat.get_format_description()."""
1367
return "Checkout reference format 1"
1369
def get_reference(self, a_bzrdir):
1370
"""See BranchFormat.get_reference()."""
1371
transport = a_bzrdir.get_branch_transport(None)
1372
return transport.get('location').read()
1374
def set_reference(self, a_bzrdir, to_branch):
1375
"""See BranchFormat.set_reference()."""
1376
transport = a_bzrdir.get_branch_transport(None)
1377
location = transport.put_bytes('location', to_branch.base)
1379
def initialize(self, a_bzrdir, target_branch=None):
1380
"""Create a branch of this format in a_bzrdir."""
1381
if target_branch is None:
1382
# this format does not implement branch itself, thus the implicit
1383
# creation contract must see it as uninitializable
1384
raise errors.UninitializableFormat(self)
1385
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1386
branch_transport = a_bzrdir.get_branch_transport(self)
1387
branch_transport.put_bytes('location',
1388
target_branch.bzrdir.root_transport.base)
1389
branch_transport.put_bytes('format', self.get_format_string())
1391
a_bzrdir, _found=True,
1392
possible_transports=[target_branch.bzrdir.root_transport])
1395
super(BranchReferenceFormat, self).__init__()
1396
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1398
def _make_reference_clone_function(format, a_branch):
1399
"""Create a clone() routine for a branch dynamically."""
1400
def clone(to_bzrdir, revision_id=None):
1401
"""See Branch.clone()."""
1402
return format.initialize(to_bzrdir, a_branch)
1403
# cannot obey revision_id limits when cloning a reference ...
1404
# FIXME RBC 20060210 either nuke revision_id for clone, or
1405
# emit some sort of warning/error to the caller ?!
1408
def open(self, a_bzrdir, _found=False, location=None,
1409
possible_transports=None):
1410
"""Return the branch that the branch reference in a_bzrdir points at.
1412
_found is a private parameter, do not use it. It is used to indicate
1413
if format probing has already be done.
1416
format = BranchFormat.find_format(a_bzrdir)
1417
if format.__class__ != self.__class__:
1418
raise AssertionError("wrong format %r found for %r" %
1420
if location is None:
1421
location = self.get_reference(a_bzrdir)
1422
real_bzrdir = bzrdir.BzrDir.open(
1423
location, possible_transports=possible_transports)
1424
result = real_bzrdir.open_branch()
1425
# this changes the behaviour of result.clone to create a new reference
1426
# rather than a copy of the content of the branch.
1427
# I did not use a proxy object because that needs much more extensive
1428
# testing, and we are only changing one behaviour at the moment.
1429
# If we decide to alter more behaviours - i.e. the implicit nickname
1430
# then this should be refactored to introduce a tested proxy branch
1431
# and a subclass of that for use in overriding clone() and ....
1433
result.clone = self._make_reference_clone_function(result)
1437
# formats which have no format string are not discoverable
1438
# and not independently creatable, so are not registered.
1439
__format5 = BzrBranchFormat5()
1440
__format6 = BzrBranchFormat6()
1441
__format7 = BzrBranchFormat7()
1442
BranchFormat.register_format(__format5)
1443
BranchFormat.register_format(BranchReferenceFormat())
1444
BranchFormat.register_format(__format6)
1445
BranchFormat.register_format(__format7)
1446
BranchFormat.set_default_format(__format6)
1447
_legacy_formats = [BzrBranchFormat4(),
1450
class BzrBranch(Branch):
1451
"""A branch stored in the actual filesystem.
1453
Note that it's "local" in the context of the filesystem; it doesn't
1454
really matter if it's on an nfs/smb/afs/coda/... share, as long as
1455
it's writable, and can be accessed via the normal filesystem API.
1457
:ivar _transport: Transport for file operations on this branch's
1458
control files, typically pointing to the .bzr/branch directory.
1459
:ivar repository: Repository for this branch.
1460
:ivar base: The url of the base directory for this branch; the one
1461
containing the .bzr directory.
1464
def __init__(self, _format=None,
1465
_control_files=None, a_bzrdir=None, _repository=None):
1466
"""Create new branch object at a particular location."""
1467
if a_bzrdir is None:
1468
raise ValueError('a_bzrdir must be supplied')
1470
self.bzrdir = a_bzrdir
1471
self._base = self.bzrdir.transport.clone('..').base
1472
# XXX: We should be able to just do
1473
# self.base = self.bzrdir.root_transport.base
1474
# but this does not quite work yet -- mbp 20080522
1475
self._format = _format
1476
if _control_files is None:
1477
raise ValueError('BzrBranch _control_files is None')
1478
self.control_files = _control_files
1479
self._transport = _control_files._transport
1480
self.repository = _repository
1481
Branch.__init__(self)
1484
return '%s(%r)' % (self.__class__.__name__, self.base)
1488
def _get_base(self):
1489
"""Returns the directory containing the control directory."""
1492
base = property(_get_base, doc="The URL for the root of this branch.")
1494
def is_locked(self):
1495
return self.control_files.is_locked()
1497
def lock_write(self, token=None):
1498
repo_token = self.repository.lock_write()
1500
token = self.control_files.lock_write(token=token)
1502
self.repository.unlock()
1506
def lock_read(self):
1507
self.repository.lock_read()
1509
self.control_files.lock_read()
1511
self.repository.unlock()
1515
# TODO: test for failed two phase locks. This is known broken.
1517
self.control_files.unlock()
1519
self.repository.unlock()
1520
if not self.control_files.is_locked():
1521
# we just released the lock
1522
self._clear_cached_state()
1524
def peek_lock_mode(self):
1525
if self.control_files._lock_count == 0:
1528
return self.control_files._lock_mode
1530
def get_physical_lock_status(self):
1531
return self.control_files.get_physical_lock_status()
1534
def print_file(self, file, revision_id):
1535
"""See Branch.print_file."""
1536
return self.repository.print_file(file, revision_id)
1538
def _write_revision_history(self, history):
1539
"""Factored out of set_revision_history.
1541
This performs the actual writing to disk.
1542
It is intended to be called by BzrBranch5.set_revision_history."""
1543
self._transport.put_bytes(
1544
'revision-history', '\n'.join(history),
1545
mode=self.bzrdir._get_file_mode())
1548
def set_revision_history(self, rev_history):
1549
"""See Branch.set_revision_history."""
1550
if 'evil' in debug.debug_flags:
1551
mutter_callsite(3, "set_revision_history scales with history.")
1552
check_not_reserved_id = _mod_revision.check_not_reserved_id
1553
for rev_id in rev_history:
1554
check_not_reserved_id(rev_id)
1555
if Branch.hooks['post_change_branch_tip']:
1556
# Don't calculate the last_revision_info() if there are no hooks
1558
old_revno, old_revid = self.last_revision_info()
1559
if len(rev_history) == 0:
1560
revid = _mod_revision.NULL_REVISION
1562
revid = rev_history[-1]
1563
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
1564
self._write_revision_history(rev_history)
1565
self._clear_cached_state()
1566
self._cache_revision_history(rev_history)
1567
for hook in Branch.hooks['set_rh']:
1568
hook(self, rev_history)
1569
if Branch.hooks['post_change_branch_tip']:
1570
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
1572
def _run_pre_change_branch_tip_hooks(self, new_revno, new_revid):
1573
"""Run the pre_change_branch_tip hooks."""
1574
hooks = Branch.hooks['pre_change_branch_tip']
1577
old_revno, old_revid = self.last_revision_info()
1578
params = ChangeBranchTipParams(
1579
self, old_revno, new_revno, old_revid, new_revid)
1583
except errors.TipChangeRejected:
1586
exc_info = sys.exc_info()
1587
hook_name = Branch.hooks.get_hook_name(hook)
1588
raise errors.HookFailed(
1589
'pre_change_branch_tip', hook_name, exc_info)
1591
def _run_post_change_branch_tip_hooks(self, old_revno, old_revid):
1592
"""Run the post_change_branch_tip hooks."""
1593
hooks = Branch.hooks['post_change_branch_tip']
1596
new_revno, new_revid = self.last_revision_info()
1597
params = ChangeBranchTipParams(
1598
self, old_revno, new_revno, old_revid, new_revid)
1603
def set_last_revision_info(self, revno, revision_id):
1604
"""Set the last revision of this branch.
1606
The caller is responsible for checking that the revno is correct
1607
for this revision id.
1609
It may be possible to set the branch last revision to an id not
1610
present in the repository. However, branches can also be
1611
configured to check constraints on history, in which case this may not
1614
revision_id = _mod_revision.ensure_null(revision_id)
1615
# this old format stores the full history, but this api doesn't
1616
# provide it, so we must generate, and might as well check it's
1618
history = self._lefthand_history(revision_id)
1619
if len(history) != revno:
1620
raise AssertionError('%d != %d' % (len(history), revno))
1621
self.set_revision_history(history)
1623
def _gen_revision_history(self):
1624
history = self._transport.get_bytes('revision-history').split('\n')
1625
if history[-1:] == ['']:
1626
# There shouldn't be a trailing newline, but just in case.
1630
def _lefthand_history(self, revision_id, last_rev=None,
1632
if 'evil' in debug.debug_flags:
1633
mutter_callsite(4, "_lefthand_history scales with history.")
1634
# stop_revision must be a descendant of last_revision
1635
graph = self.repository.get_graph()
1636
if last_rev is not None:
1637
if not graph.is_ancestor(last_rev, revision_id):
1638
# our previous tip is not merged into stop_revision
1639
raise errors.DivergedBranches(self, other_branch)
1640
# make a new revision history from the graph
1641
parents_map = graph.get_parent_map([revision_id])
1642
if revision_id not in parents_map:
1643
raise errors.NoSuchRevision(self, revision_id)
1644
current_rev_id = revision_id
1646
check_not_reserved_id = _mod_revision.check_not_reserved_id
1647
# Do not include ghosts or graph origin in revision_history
1648
while (current_rev_id in parents_map and
1649
len(parents_map[current_rev_id]) > 0):
1650
check_not_reserved_id(current_rev_id)
1651
new_history.append(current_rev_id)
1652
current_rev_id = parents_map[current_rev_id][0]
1653
parents_map = graph.get_parent_map([current_rev_id])
1654
new_history.reverse()
1658
def generate_revision_history(self, revision_id, last_rev=None,
1660
"""Create a new revision history that will finish with revision_id.
1662
:param revision_id: the new tip to use.
1663
:param last_rev: The previous last_revision. If not None, then this
1664
must be a ancestory of revision_id, or DivergedBranches is raised.
1665
:param other_branch: The other branch that DivergedBranches should
1666
raise with respect to.
1668
self.set_revision_history(self._lefthand_history(revision_id,
1669
last_rev, other_branch))
1671
def basis_tree(self):
1672
"""See Branch.basis_tree."""
1673
return self.repository.revision_tree(self.last_revision())
1676
def pull(self, source, overwrite=False, stop_revision=None,
1677
_hook_master=None, run_hooks=True, possible_transports=None,
1678
_override_hook_target=None):
1681
:param _hook_master: Private parameter - set the branch to
1682
be supplied as the master to pull hooks.
1683
:param run_hooks: Private parameter - if false, this branch
1684
is being called because it's the master of the primary branch,
1685
so it should not run its hooks.
1686
:param _override_hook_target: Private parameter - set the branch to be
1687
supplied as the target_branch to pull hooks.
1689
result = PullResult()
1690
result.source_branch = source
1691
if _override_hook_target is None:
1692
result.target_branch = self
1694
result.target_branch = _override_hook_target
1697
# We assume that during 'pull' the local repository is closer than
1699
graph = self.repository.get_graph(source.repository)
1700
result.old_revno, result.old_revid = self.last_revision_info()
1701
self.update_revisions(source, stop_revision, overwrite=overwrite,
1703
result.tag_conflicts = source.tags.merge_to(self.tags, overwrite)
1704
result.new_revno, result.new_revid = self.last_revision_info()
1706
result.master_branch = _hook_master
1707
result.local_branch = result.target_branch
1709
result.master_branch = result.target_branch
1710
result.local_branch = None
1712
for hook in Branch.hooks['post_pull']:
1718
def _get_parent_location(self):
1719
_locs = ['parent', 'pull', 'x-pull']
1722
return self._transport.get_bytes(l).strip('\n')
1723
except errors.NoSuchFile:
1728
def push(self, target, overwrite=False, stop_revision=None,
1729
_override_hook_source_branch=None):
1732
This is the basic concrete implementation of push()
1734
:param _override_hook_source_branch: If specified, run
1735
the hooks passing this Branch as the source, rather than self.
1736
This is for use of RemoteBranch, where push is delegated to the
1737
underlying vfs-based Branch.
1739
# TODO: Public option to disable running hooks - should be trivial but
1743
result = self._push_with_bound_branches(target, overwrite,
1745
_override_hook_source_branch=_override_hook_source_branch)
1750
def _push_with_bound_branches(self, target, overwrite,
1752
_override_hook_source_branch=None):
1753
"""Push from self into target, and into target's master if any.
1755
This is on the base BzrBranch class even though it doesn't support
1756
bound branches because the *target* might be bound.
1759
if _override_hook_source_branch:
1760
result.source_branch = _override_hook_source_branch
1761
for hook in Branch.hooks['post_push']:
1764
bound_location = target.get_bound_location()
1765
if bound_location and target.base != bound_location:
1766
# there is a master branch.
1768
# XXX: Why the second check? Is it even supported for a branch to
1769
# be bound to itself? -- mbp 20070507
1770
master_branch = target.get_master_branch()
1771
master_branch.lock_write()
1773
# push into the master from this branch.
1774
self._basic_push(master_branch, overwrite, stop_revision)
1775
# and push into the target branch from this. Note that we push from
1776
# this branch again, because its considered the highest bandwidth
1778
result = self._basic_push(target, overwrite, stop_revision)
1779
result.master_branch = master_branch
1780
result.local_branch = target
1784
master_branch.unlock()
1787
result = self._basic_push(target, overwrite, stop_revision)
1788
# TODO: Why set master_branch and local_branch if there's no
1789
# binding? Maybe cleaner to just leave them unset? -- mbp
1791
result.master_branch = target
1792
result.local_branch = None
1796
def _basic_push(self, target, overwrite, stop_revision):
1797
"""Basic implementation of push without bound branches or hooks.
1799
Must be called with self read locked and target write locked.
1801
result = PushResult()
1802
result.source_branch = self
1803
result.target_branch = target
1804
result.old_revno, result.old_revid = target.last_revision_info()
1806
# We assume that during 'push' this repository is closer than
1808
graph = self.repository.get_graph(target.repository)
1809
target.update_revisions(self, stop_revision, overwrite=overwrite,
1811
result.tag_conflicts = self.tags.merge_to(target.tags, overwrite)
1812
result.new_revno, result.new_revid = target.last_revision_info()
1815
def get_parent(self):
1816
"""See Branch.get_parent."""
1817
parent = self._get_parent_location()
1820
# This is an old-format absolute path to a local branch
1821
# turn it into a url
1822
if parent.startswith('/'):
1823
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1825
return urlutils.join(self.base[:-1], parent)
1826
except errors.InvalidURLJoin, e:
1827
raise errors.InaccessibleParent(parent, self.base)
1829
def get_stacked_on_url(self):
1830
raise errors.UnstackableBranchFormat(self._format, self.base)
1832
def set_push_location(self, location):
1833
"""See Branch.set_push_location."""
1834
self.get_config().set_user_option(
1835
'push_location', location,
1836
store=_mod_config.STORE_LOCATION_NORECURSE)
1839
def set_parent(self, url):
1840
"""See Branch.set_parent."""
1841
# TODO: Maybe delete old location files?
1842
# URLs should never be unicode, even on the local fs,
1843
# FIXUP this and get_parent in a future branch format bump:
1844
# read and rewrite the file. RBC 20060125
1846
if isinstance(url, unicode):
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)
1848
url = url.encode('ascii')
1849
except UnicodeEncodeError:
1850
raise errors.InvalidURL(url,
1851
"Urls must be 7-bit ascii, "
1852
"use bzrlib.urlutils.escape")
1853
url = urlutils.relative_url(self.base, url)
1854
self._set_parent_location(url)
1856
def _set_parent_location(self, url):
1858
self._transport.delete('parent')
1860
self._transport.put_bytes('parent', url + '\n',
1861
mode=self.bzrdir._get_file_mode())
1863
def set_stacked_on_url(self, url):
1864
raise errors.UnstackableBranchFormat(self._format, self.base)
1867
class BzrBranch5(BzrBranch):
1868
"""A format 5 branch. This supports new features over plain branches.
1870
It has support for a master_branch which is the data for bound branches.
1874
def pull(self, source, overwrite=False, stop_revision=None,
1875
run_hooks=True, possible_transports=None,
1876
_override_hook_target=None):
1877
"""Pull from source into self, updating my master if any.
1879
:param run_hooks: Private parameter - if false, this branch
1880
is being called because it's the master of the primary branch,
1881
so it should not run its hooks.
1883
bound_location = self.get_bound_location()
1884
master_branch = None
1885
if bound_location and source.base != bound_location:
1886
# not pulling from master, so we need to update master.
1887
master_branch = self.get_master_branch(possible_transports)
1888
master_branch.lock_write()
1891
# pull from source into master.
1892
master_branch.pull(source, overwrite, stop_revision,
1894
return super(BzrBranch5, self).pull(source, overwrite,
1895
stop_revision, _hook_master=master_branch,
1896
run_hooks=run_hooks,
1897
_override_hook_target=_override_hook_target)
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
1900
master_branch.unlock()
1902
def get_bound_location(self):
1904
return self._transport.get_bytes('bound')[:-1]
1905
except errors.NoSuchFile:
1909
def get_master_branch(self, possible_transports=None):
1910
"""Return the branch we are bound to.
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')
1912
:return: Either a Branch, or None
1914
This could memoise the branch, but if thats done
1915
it must be revalidated on each new lock.
1916
So for now we just don't memoise it.
1917
# RBC 20060304 review this decision.
1919
bound_loc = self.get_bound_location()
1923
return Branch.open(bound_loc,
1924
possible_transports=possible_transports)
1925
except (errors.NotBranchError, errors.ConnectionError), e:
1926
raise errors.BoundBranchConnectionFailure(
1930
def set_bound_location(self, location):
1931
"""Set the target where this branch is bound to.
1933
:param location: URL to the target branch
1936
self._transport.put_bytes('bound', location+'\n',
1937
mode=self.bzrdir._get_file_mode())
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:
1940
self._transport.delete('bound')
1941
except errors.NoSuchFile:
1946
def bind(self, other):
1947
"""Bind this branch to the branch other.
1949
This does not push or pull data between the branches, though it does
1950
check for divergence to raise an error when the branches are not
1951
either the same, or one a prefix of the other. That behaviour may not
1952
be useful, so that check may be removed in future.
1954
:param other: The branch to bind to
1957
# TODO: jam 20051230 Consider checking if the target is bound
1958
# It is debatable whether you should be able to bind to
1959
# a branch which is itself bound.
1960
# Committing is obviously forbidden,
1961
# but binding itself may not be.
1962
# Since we *have* to check at commit time, we don't
1963
# *need* to check here
1965
# we want to raise diverged if:
1966
# last_rev is not in the other_last_rev history, AND
1967
# other_last_rev is not in our history, and do it without pulling
1969
self.set_bound_location(other.base)
1973
"""If bound, unbind"""
1974
return self.set_bound_location(None)
1977
def update(self, possible_transports=None):
1978
"""Synchronise this branch with the master branch if any.
1980
:return: None or the last_revision that was pivoted out during the
1983
master = self.get_master_branch(possible_transports)
1984
if master is not None:
1985
old_tip = _mod_revision.ensure_null(self.last_revision())
1986
self.pull(master, overwrite=True)
1987
if self.repository.get_graph().is_ancestor(old_tip,
1988
_mod_revision.ensure_null(self.last_revision())):
1994
class BzrBranch7(BzrBranch5):
1995
"""A branch with support for a fallback repository."""
1997
def _get_fallback_repository(self, url):
1998
"""Get the repository we fallback to at url."""
1999
url = urlutils.join(self.base, url)
2000
return bzrdir.BzrDir.open(url).open_branch().repository
2002
def _activate_fallback_location(self, url):
2003
"""Activate the branch/repository from url as a fallback repository."""
2004
self.repository.add_fallback_repository(
2005
self._get_fallback_repository(url))
2007
def _open_hook(self):
2009
url = self.get_stacked_on_url()
2010
except (errors.UnstackableRepositoryFormat, errors.NotStacked,
2011
errors.UnstackableBranchFormat):
2014
self._activate_fallback_location(url)
2016
def _check_stackable_repo(self):
2017
if not self.repository._format.supports_external_lookups:
2018
raise errors.UnstackableRepositoryFormat(self.repository._format,
2019
self.repository.base)
2021
def __init__(self, *args, **kwargs):
2022
super(BzrBranch7, self).__init__(*args, **kwargs)
2023
self._last_revision_info_cache = None
2024
self._partial_revision_history_cache = []
2026
def _clear_cached_state(self):
2027
super(BzrBranch7, self)._clear_cached_state()
2028
self._last_revision_info_cache = None
2029
self._partial_revision_history_cache = []
2031
def _last_revision_info(self):
2032
revision_string = self._transport.get_bytes('last-revision')
2033
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2034
revision_id = cache_utf8.get_cached_utf8(revision_id)
2036
return revno, revision_id
2038
def _write_last_revision_info(self, revno, revision_id):
2039
"""Simply write out the revision id, with no checks.
2041
Use set_last_revision_info to perform this safely.
2043
Does not update the revision_history cache.
2044
Intended to be called by set_last_revision_info and
2045
_write_revision_history.
2047
revision_id = _mod_revision.ensure_null(revision_id)
2048
out_string = '%d %s\n' % (revno, revision_id)
2049
self._transport.put_bytes('last-revision', out_string,
2050
mode=self.bzrdir._get_file_mode())
2053
def set_last_revision_info(self, revno, revision_id):
2054
revision_id = _mod_revision.ensure_null(revision_id)
2055
old_revno, old_revid = self.last_revision_info()
2056
if self._get_append_revisions_only():
2057
self._check_history_violation(revision_id)
2058
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2059
self._write_last_revision_info(revno, revision_id)
2060
self._clear_cached_state()
2061
self._last_revision_info_cache = revno, revision_id
2062
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2064
def _check_history_violation(self, revision_id):
2065
last_revision = _mod_revision.ensure_null(self.last_revision())
2066
if _mod_revision.is_null(last_revision):
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'))
2068
if last_revision not in self._lefthand_history(revision_id):
2069
raise errors.AppendRevisionsOnlyViolation(self.base)
2071
def _gen_revision_history(self):
2072
"""Generate the revision history from last revision
2074
last_revno, last_revision = self.last_revision_info()
2075
self._extend_partial_history(stop_index=last_revno-1)
2076
return list(reversed(self._partial_revision_history_cache))
2078
def _extend_partial_history(self, stop_index=None, stop_revision=None):
2079
"""Extend the partial history to include a given index
2081
If a stop_index is supplied, stop when that index has been reached.
2082
If a stop_revision is supplied, stop when that revision is
2083
encountered. Otherwise, stop when the beginning of history is
2086
:param stop_index: The index which should be present. When it is
2087
present, history extension will stop.
2088
:param revision_id: The revision id which should be present. When
2089
it is encountered, history extension will stop.
2091
repo = self.repository
2092
if len(self._partial_revision_history_cache) == 0:
2093
iterator = repo.iter_reverse_revision_history(self.last_revision())
2095
start_revision = self._partial_revision_history_cache[-1]
2096
iterator = repo.iter_reverse_revision_history(start_revision)
2097
#skip the last revision in the list
2098
next_revision = iterator.next()
2099
for revision_id in iterator:
2100
self._partial_revision_history_cache.append(revision_id)
2101
if (stop_index is not None and
2102
len(self._partial_revision_history_cache) > stop_index):
2104
if revision_id == stop_revision:
2107
def _write_revision_history(self, history):
2108
"""Factored out of set_revision_history.
2110
This performs the actual writing to disk, with format-specific checks.
2111
It is intended to be called by BzrBranch5.set_revision_history.
2113
if len(history) == 0:
2114
last_revision = 'null:'
2116
if history != self._lefthand_history(history[-1]):
2117
raise errors.NotLefthandHistory(history)
2118
last_revision = history[-1]
2119
if self._get_append_revisions_only():
2120
self._check_history_violation(last_revision)
2121
self._write_last_revision_info(len(history), last_revision)
2124
def _set_parent_location(self, url):
2125
"""Set the parent branch"""
2126
self._set_config_location('parent_location', url, make_relative=True)
2129
def _get_parent_location(self):
2130
"""Set the parent branch"""
2131
return self._get_config_location('parent_location')
2133
def set_push_location(self, location):
2134
"""See Branch.set_push_location."""
2135
self._set_config_location('push_location', location)
2137
def set_bound_location(self, location):
2138
"""See Branch.set_push_location."""
2140
config = self.get_config()
2141
if location is None:
2142
if config.get_user_option('bound') != 'True':
2145
config.set_user_option('bound', 'False', warn_masked=True)
2148
self._set_config_location('bound_location', location,
2150
config.set_user_option('bound', 'True', warn_masked=True)
2153
def _get_bound_location(self, bound):
2154
"""Return the bound location in the config file.
2156
Return None if the bound parameter does not match"""
2157
config = self.get_config()
2158
config_bound = (config.get_user_option('bound') == 'True')
2159
if config_bound != bound:
2161
return self._get_config_location('bound_location', config=config)
2163
def get_bound_location(self):
2164
"""See Branch.set_push_location."""
2165
return self._get_bound_location(True)
2167
def get_old_bound_location(self):
2168
"""See Branch.get_old_bound_location"""
2169
return self._get_bound_location(False)
2171
def get_stacked_on_url(self):
2172
self._check_stackable_repo()
2173
stacked_url = self._get_config_location('stacked_on_location')
2174
if stacked_url is None:
2175
raise errors.NotStacked(self)
2178
def set_append_revisions_only(self, enabled):
2183
self.get_config().set_user_option('append_revisions_only', value,
2186
def set_stacked_on_url(self, url):
2187
self._check_stackable_repo()
1268
class ScratchBranch(Branch):
1269
"""Special test class: a branch that cleans up after itself.
1271
>>> b = ScratchBranch()
2190
old_url = self.get_stacked_on_url()
2191
except (errors.NotStacked, errors.UnstackableBranchFormat,
2192
errors.UnstackableRepositoryFormat):
2195
# repositories don't offer an interface to remove fallback
2196
# repositories today; take the conceptually simpler option and just
2198
self.repository = self.bzrdir.find_repository()
2199
# for every revision reference the branch has, ensure it is pulled
2201
source_repository = self._get_fallback_repository(old_url)
2202
for revision_id in chain([self.last_revision()],
2203
self.tags.get_reverse_tag_dict()):
2204
self.repository.fetch(source_repository, revision_id,
2207
self._activate_fallback_location(url)
2208
# write this out after the repository is stacked to avoid setting a
2209
# stacked config that doesn't work.
2210
self._set_config_location('stacked_on_location', url)
2212
def _get_append_revisions_only(self):
2213
value = self.get_config().get_user_option('append_revisions_only')
2214
return value == 'True'
2216
def _synchronize_history(self, destination, revision_id):
2217
"""Synchronize last revision and revision history between branches.
2219
This version is most efficient when the destination is also a
2220
BzrBranch6, but works for BzrBranch5, as long as the destination's
2221
repository contains all the lefthand ancestors of the intended
2222
last_revision. If not, set_last_revision_info will fail.
2224
:param destination: The branch to copy the history into
2225
:param revision_id: The revision-id to truncate history at. May
2226
be None to copy complete history.
2228
source_revno, source_revision_id = self.last_revision_info()
2229
if revision_id is None:
2230
revno, revision_id = source_revno, source_revision_id
2231
elif source_revision_id == revision_id:
2232
# we know the revno without needing to walk all of history
2233
revno = source_revno
2235
# To figure out the revno for a random revision, we need to build
2236
# the revision history, and count its length.
2237
# We don't care about the order, just how long it is.
2238
# Alternatively, we could start at the current location, and count
2239
# backwards. But there is no guarantee that we will find it since
2240
# it may be a merged revision.
2241
revno = len(list(self.repository.iter_reverse_revision_history(
2243
destination.set_last_revision_info(revno, revision_id)
2245
def _make_tags(self):
2246
return BasicTags(self)
2249
def generate_revision_history(self, revision_id, last_rev=None,
2251
"""See BzrBranch5.generate_revision_history"""
2252
history = self._lefthand_history(revision_id, last_rev, other_branch)
2253
revno = len(history)
2254
self.set_last_revision_info(revno, revision_id)
2257
def get_rev_id(self, revno, history=None):
2258
"""Find the revision id of the specified revno."""
2260
return _mod_revision.NULL_REVISION
2262
last_revno, last_revision_id = self.last_revision_info()
2263
if revno <= 0 or revno > last_revno:
2264
raise errors.NoSuchRevision(self, revno)
2266
if history is not None:
2267
return history[revno - 1]
2269
index = last_revno - revno
2270
if len(self._partial_revision_history_cache) <= index:
2271
self._extend_partial_history(stop_index=index)
2272
if len(self._partial_revision_history_cache) > index:
2273
return self._partial_revision_history_cache[index]
2275
raise errors.NoSuchRevision(self, revno)
2278
def revision_id_to_revno(self, revision_id):
2279
"""Given a revision id, return its revno"""
2280
if _mod_revision.is_null(revision_id):
2283
index = self._partial_revision_history_cache.index(revision_id)
2285
self._extend_partial_history(stop_revision=revision_id)
2286
index = len(self._partial_revision_history_cache) - 1
2287
if self._partial_revision_history_cache[index] != revision_id:
2288
raise errors.NoSuchRevision(self, revision_id)
2289
return self.revno() - index
2292
class BzrBranch6(BzrBranch7):
2293
"""See BzrBranchFormat6 for the capabilities of this branch.
2295
This subclass of BzrBranch7 disables the new features BzrBranch7 added,
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)
2299
def get_stacked_on_url(self):
2300
raise errors.UnstackableBranchFormat(self._format, self.base)
2302
def set_stacked_on_url(self, url):
2303
raise errors.UnstackableBranchFormat(self._format, self.base)
1337
2306
######################################################################
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:
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')
2307
# results of operations
2310
class _Result(object):
2312
def _show_tag_conficts(self, to_file):
2313
if not getattr(self, 'tag_conflicts', None):
2315
to_file.write('Conflicting tags:\n')
2316
for name, value1, value2 in self.tag_conflicts:
2317
to_file.write(' %s\n' % (name, ))
2320
class PullResult(_Result):
2321
"""Result of a Branch.pull operation.
2323
:ivar old_revno: Revision number before pull.
2324
:ivar new_revno: Revision number after pull.
2325
:ivar old_revid: Tip revision id before pull.
2326
:ivar new_revid: Tip revision id after pull.
2327
:ivar source_branch: Source (local) branch object.
2328
:ivar master_branch: Master branch of the target, or the target if no
2330
:ivar local_branch: target branch if there is a Master, else None
2331
:ivar target_branch: Target/destination branch object.
2332
:ivar tag_conflicts: A list of tag conflicts, see BasicTags.merge_to
2336
# DEPRECATED: pull used to return the change in revno
2337
return self.new_revno - self.old_revno
2339
def report(self, to_file):
2341
if self.old_revid == self.new_revid:
2342
to_file.write('No revisions to pull.\n')
2344
to_file.write('Now on revision %d.\n' % self.new_revno)
2345
self._show_tag_conficts(to_file)
2348
class PushResult(_Result):
2349
"""Result of a Branch.push operation.
2351
:ivar old_revno: Revision number before push.
2352
:ivar new_revno: Revision number after push.
2353
:ivar old_revid: Tip revision id before push.
2354
:ivar new_revid: Tip revision id after push.
2355
:ivar source_branch: Source branch object.
2356
:ivar master_branch: Master branch of the target, or None.
2357
:ivar target_branch: Target/destination branch object.
2361
# DEPRECATED: push used to return the change in revno
2362
return self.new_revno - self.old_revno
2364
def report(self, to_file):
2365
"""Write a human-readable description of the result."""
2366
if self.old_revid == self.new_revid:
2367
to_file.write('No new revisions to push.\n')
2369
to_file.write('Pushed up to revision %d.\n' % self.new_revno)
2370
self._show_tag_conficts(to_file)
2373
class BranchCheckResult(object):
2374
"""Results of checking branch consistency.
2379
def __init__(self, branch):
2380
self.branch = branch
2382
def report_results(self, verbose):
2383
"""Report the check results via trace.note.
2385
:param verbose: Requests more detailed display of what was checked,
2388
note('checked branch %s format %s',
2390
self.branch._format)
2393
class Converter5to6(object):
2394
"""Perform an in-place upgrade of format 5 to format 6"""
2396
def convert(self, branch):
2397
# Data for 5 and 6 can peacefully coexist.
2398
format = BzrBranchFormat6()
2399
new_branch = format.open(branch.bzrdir, _found=True)
2401
# Copy source data into target
2402
new_branch._write_last_revision_info(*branch.last_revision_info())
2403
new_branch.set_parent(branch.get_parent())
2404
new_branch.set_bound_location(branch.get_bound_location())
2405
new_branch.set_push_location(branch.get_push_location())
2407
# New branch has no tags by default
2408
new_branch.tags._set_tag_dict({})
2410
# Copying done; now update target format
2411
new_branch._transport.put_bytes('format',
2412
format.get_format_string(),
2413
mode=new_branch.bzrdir._get_file_mode())
2415
# Clean up old files
2416
new_branch._transport.delete('revision-history')
2418
branch.set_parent(None)
2419
except errors.NoSuchFile:
2421
branch.set_bound_location(None)
2424
class Converter6to7(object):
2425
"""Perform an in-place upgrade of format 6 to format 7"""
2427
def convert(self, branch):
2428
format = BzrBranchFormat7()
2429
branch._set_config_location('stacked_on_location', '')
2430
# update target format
2431
branch._transport.put_bytes('format', format.get_format_string())
added
removed
bzrlib/branch.py
