21
from warnings import warn
22
from cStringIO import StringIO
26
from bzrlib.inventory import InventoryEntry
27
import bzrlib.inventory as inventory
28
22
from bzrlib.trace import mutter, note
29
from bzrlib.osutils import (isdir, quotefn, compact_date, rand_bytes,
30
rename, splitpath, sha_file, appendpath,
32
import bzrlib.errors as errors
33
from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
34
NoSuchRevision, HistoryMissing, NotBranchError,
35
DivergedBranches, LockError, UnlistableStore,
36
UnlistableBranch, NoSuchFile)
23
from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
25
sha_file, appendpath, file_kind
27
from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
37
29
from bzrlib.textui import show_status
38
30
from bzrlib.revision import Revision
31
from bzrlib.xml import unpack_xml
39
32
from bzrlib.delta import compare_trees
40
33
from bzrlib.tree import EmptyTree, RevisionTree
41
from bzrlib.inventory import Inventory
42
from bzrlib.store import copy_all
43
from bzrlib.store.compressed_text import CompressedTextStore
44
from bzrlib.store.text import TextStore
45
from bzrlib.store.weave import WeaveStore
46
import bzrlib.transactions as transactions
47
from bzrlib.transport import Transport, get_transport
52
BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
53
BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
54
BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
38
BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
55
39
## TODO: Maybe include checks for common corruption of newlines, etc?
58
42
# TODO: Some operations like log might retrieve the same revisions
59
43
# repeatedly to calculate deltas. We could perhaps have a weakref
60
# cache in memory to make this faster. In general anything can be
61
# cached in memory between lock and unlock operations.
63
def find_branch(*ignored, **ignored_too):
64
# XXX: leave this here for about one release, then remove it
65
raise NotImplementedError('find_branch() is not supported anymore, '
66
'please use one of the new branch constructors')
44
# cache in memory to make this faster.
46
# TODO: please move the revision-string syntax stuff out of the branch
47
# object; it's clutter
50
def find_branch(f, **args):
51
if f and (f.startswith('http://') or f.startswith('https://')):
53
return remotebranch.RemoteBranch(f, **args)
55
return Branch(f, **args)
58
def find_cached_branch(f, cache_root, **args):
59
from remotebranch import RemoteBranch
60
br = find_branch(f, **args)
61
def cacheify(br, store_name):
62
from meta_store import CachedStore
63
cache_path = os.path.join(cache_root, store_name)
65
new_store = CachedStore(getattr(br, store_name), cache_path)
66
setattr(br, store_name, new_store)
68
if isinstance(br, RemoteBranch):
69
cacheify(br, 'inventory_store')
70
cacheify(br, 'text_store')
71
cacheify(br, 'revision_store')
67
75
def _relpath(base, path):
68
76
"""Return path relative to base, or raise exception.
171
161
Lock object from bzrlib.lock.
173
# We actually expect this class to be somewhat short-lived; part of its
174
# purpose is to try to isolate what bits of the branch logic are tied to
175
# filesystem access, so that in a later step, we can extricate them to
176
# a separarte ("storage") class.
177
164
_lock_mode = None
178
165
_lock_count = None
180
_inventory_weave = None
182
168
# Map some sort of prefix into a namespace
183
169
# stuff like "revno:10", "revid:", etc.
184
170
# This should match a prefix with a function which accepts
185
171
REVISION_NAMESPACES = {}
187
def push_stores(self, branch_to):
188
"""Copy the content of this branches store to branch_to."""
189
if (self._branch_format != branch_to._branch_format
190
or self._branch_format != 4):
191
from bzrlib.fetch import greedy_fetch
192
mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
193
self, self._branch_format, branch_to, branch_to._branch_format)
194
greedy_fetch(to_branch=branch_to, from_branch=self,
195
revision=self.last_revision())
198
store_pairs = ((self.text_store, branch_to.text_store),
199
(self.inventory_store, branch_to.inventory_store),
200
(self.revision_store, branch_to.revision_store))
202
for from_store, to_store in store_pairs:
203
copy_all(from_store, to_store)
204
except UnlistableStore:
205
raise UnlistableBranch(from_store)
207
def __init__(self, transport, init=False,
208
relax_version_check=False):
173
def __init__(self, base, init=False, find_root=True):
209
174
"""Create new branch object at a particular location.
211
transport -- A Transport object, defining how to access files.
212
(If a string, transport.transport() will be used to
213
create a Transport object)
176
base -- Base directory for the branch.
215
178
init -- If True, create new control files in a previously
216
179
unversioned directory. If False, the branch must already
219
relax_version_check -- If true, the usual check for the branch
220
version is not applied. This is intended only for
221
upgrade/recovery type use; it's not guaranteed that
222
all operations will work on old format branches.
182
find_root -- If true and init is false, find the root of the
183
existing branch containing base.
224
185
In the test suite, creation of new trees is tested using the
225
186
`ScratchBranch` class.
227
assert isinstance(transport, Transport), \
228
"%r is not a Transport" % transport
229
self._transport = transport
188
from bzrlib.store import ImmutableStore
190
self.base = os.path.realpath(base)
231
191
self._make_control()
232
self._check_format(relax_version_check)
234
def get_store(name, compressed=True, prefixed=False):
235
# FIXME: This approach of assuming stores are all entirely compressed
236
# or entirely uncompressed is tidy, but breaks upgrade from
237
# some existing branches where there's a mixture; we probably
238
# still want the option to look for both.
239
relpath = self._rel_controlfilename(name)
241
store = CompressedTextStore(self._transport.clone(relpath),
244
store = TextStore(self._transport.clone(relpath),
246
#if self._transport.should_cache():
247
# cache_path = os.path.join(self.cache_root, name)
248
# os.mkdir(cache_path)
249
# store = bzrlib.store.CachedStore(store, cache_path)
251
def get_weave(name, prefixed=False):
252
relpath = self._rel_controlfilename(name)
253
ws = WeaveStore(self._transport.clone(relpath), prefixed=prefixed)
254
if self._transport.should_cache():
255
ws.enable_cache = True
258
if self._branch_format == 4:
259
self.inventory_store = get_store('inventory-store')
260
self.text_store = get_store('text-store')
261
self.revision_store = get_store('revision-store')
262
elif self._branch_format == 5:
263
self.control_weaves = get_weave([])
264
self.weave_store = get_weave('weaves')
265
self.revision_store = get_store('revision-store', compressed=False)
266
elif self._branch_format == 6:
267
self.control_weaves = get_weave([])
268
self.weave_store = get_weave('weaves', prefixed=True)
269
self.revision_store = get_store('revision-store', compressed=False,
271
self._transaction = None
193
self.base = find_branch_root(base)
195
self.base = os.path.realpath(base)
196
if not isdir(self.controlfilename('.')):
197
from errors import NotBranchError
198
raise NotBranchError("not a bzr branch: %s" % quotefn(base),
199
['use "bzr init" to initialize a new working tree',
200
'current bzr can only operate from top-of-tree'])
203
self.text_store = ImmutableStore(self.controlfilename('text-store'))
204
self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
205
self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
273
208
def __str__(self):
274
return '%s(%r)' % (self.__class__.__name__, self._transport.base)
209
return '%s(%r)' % (self.__class__.__name__, self.base)
277
212
__repr__ = __str__
280
215
def __del__(self):
281
216
if self._lock_mode or self._lock:
282
# XXX: This should show something every time, and be suitable for
283
# headless operation and embedding
217
from warnings import warn
284
218
warn("branch %r was not explicitly unlocked" % self)
285
219
self._lock.unlock()
287
# TODO: It might be best to do this somewhere else,
288
# but it is nice for a Branch object to automatically
289
# cache it's information.
290
# Alternatively, we could have the Transport objects cache requests
291
# See the earlier discussion about how major objects (like Branch)
292
# should never expect their __del__ function to run.
293
if hasattr(self, 'cache_root') and self.cache_root is not None:
296
shutil.rmtree(self.cache_root)
299
self.cache_root = None
303
return self._transport.base
306
base = property(_get_base)
308
def _finish_transaction(self):
309
"""Exit the current transaction."""
310
if self._transaction is None:
311
raise errors.LockError('Branch %s is not in a transaction' %
313
transaction = self._transaction
314
self._transaction = None
317
def get_transaction(self):
318
"""Return the current active transaction.
320
If no transaction is active, this returns a passthrough object
321
for which all data is immedaitely flushed and no caching happens.
323
if self._transaction is None:
324
return transactions.PassThroughTransaction()
326
return self._transaction
328
def _set_transaction(self, new_transaction):
329
"""Set a new active transaction."""
330
if self._transaction is not None:
331
raise errors.LockError('Branch %s is in a transaction already.' %
333
self._transaction = new_transaction
335
222
def lock_write(self):
336
mutter("lock write: %s (%s)", self, self._lock_count)
337
# TODO: Upgrade locking to support using a Transport,
338
# and potentially a remote locking protocol
339
223
if self._lock_mode:
340
224
if self._lock_mode != 'w':
225
from errors import LockError
341
226
raise LockError("can't upgrade to a write lock from %r" %
343
228
self._lock_count += 1
345
self._lock = self._transport.lock_write(
346
self._rel_controlfilename('branch-lock'))
230
from bzrlib.lock import WriteLock
232
self._lock = WriteLock(self.controlfilename('branch-lock'))
347
233
self._lock_mode = 'w'
348
234
self._lock_count = 1
349
self._set_transaction(transactions.PassThroughTransaction())
351
237
def lock_read(self):
352
mutter("lock read: %s (%s)", self, self._lock_count)
353
238
if self._lock_mode:
354
239
assert self._lock_mode in ('r', 'w'), \
355
240
"invalid lock mode %r" % self._lock_mode
356
241
self._lock_count += 1
358
self._lock = self._transport.lock_read(
359
self._rel_controlfilename('branch-lock'))
243
from bzrlib.lock import ReadLock
245
self._lock = ReadLock(self.controlfilename('branch-lock'))
360
246
self._lock_mode = 'r'
361
247
self._lock_count = 1
362
self._set_transaction(transactions.ReadOnlyTransaction())
363
# 5K may be excessive, but hey, its a knob.
364
self.get_transaction().set_cache_size(5000)
366
249
def unlock(self):
367
mutter("unlock: %s (%s)", self, self._lock_count)
368
250
if not self._lock_mode:
251
from errors import LockError
369
252
raise LockError('branch %r is not locked' % (self))
371
254
if self._lock_count > 1:
372
255
self._lock_count -= 1
374
self._finish_transaction()
375
257
self._lock.unlock()
376
258
self._lock = None
377
259
self._lock_mode = self._lock_count = None
379
261
def abspath(self, name):
380
262
"""Return absolute filename for something in the branch"""
381
return self._transport.abspath(name)
263
return os.path.join(self.base, name)
383
265
def relpath(self, path):
384
266
"""Return path relative to this branch of something inside it.
386
268
Raises an error if path is not in this branch."""
387
return self._transport.relpath(path)
390
def _rel_controlfilename(self, file_or_path):
269
return _relpath(self.base, path)
271
def controlfilename(self, file_or_path):
272
"""Return location relative to branch."""
391
273
if isinstance(file_or_path, basestring):
392
274
file_or_path = [file_or_path]
393
return [bzrlib.BZRDIR] + file_or_path
395
def controlfilename(self, file_or_path):
396
"""Return location relative to branch."""
397
return self._transport.abspath(self._rel_controlfilename(file_or_path))
275
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
400
278
def controlfile(self, file_or_path, mode='r'):
408
286
Controlfiles should almost never be opened in write mode but
409
287
rather should be atomically copied and replaced using atomicfile.
413
relpath = self._rel_controlfilename(file_or_path)
414
#TODO: codecs.open() buffers linewise, so it was overloaded with
415
# a much larger buffer, do we need to do the same for getreader/getwriter?
417
return self._transport.get(relpath)
419
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
421
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
423
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
290
fn = self.controlfilename(file_or_path)
292
if mode == 'rb' or mode == 'wb':
293
return file(fn, mode)
294
elif mode == 'r' or mode == 'w':
295
# open in binary mode anyhow so there's no newline translation;
296
# codecs uses line buffering by default; don't want that.
298
return codecs.open(fn, mode + 'b', 'utf-8',
425
301
raise BzrError("invalid controlfile mode %r" % mode)
427
def put_controlfile(self, path, f, encode=True):
428
"""Write an entry as a controlfile.
430
:param path: The path to put the file, relative to the .bzr control
432
:param f: A file-like or string object whose contents should be copied.
433
:param encode: If true, encode the contents as utf-8
435
self.put_controlfiles([(path, f)], encode=encode)
437
def put_controlfiles(self, files, encode=True):
438
"""Write several entries as controlfiles.
440
:param files: A list of [(path, file)] pairs, where the path is the directory
441
underneath the bzr control directory
442
:param encode: If true, encode the contents as utf-8
446
for path, f in files:
448
if isinstance(f, basestring):
449
f = f.encode('utf-8', 'replace')
451
f = codecs.getwriter('utf-8')(f, errors='replace')
452
path = self._rel_controlfilename(path)
453
ctrl_files.append((path, f))
454
self._transport.put_multi(ctrl_files)
456
303
def _make_control(self):
457
304
from bzrlib.inventory import Inventory
458
from bzrlib.weavefile import write_weave_v5
459
from bzrlib.weave import Weave
305
from bzrlib.xml import pack_xml
461
# Create an empty inventory
307
os.mkdir(self.controlfilename([]))
308
self.controlfile('README', 'w').write(
309
"This is a Bazaar-NG control directory.\n"
310
"Do not change any files in this directory.\n")
311
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
312
for d in ('text-store', 'inventory-store', 'revision-store'):
313
os.mkdir(self.controlfilename(d))
314
for f in ('revision-history', 'merged-patches',
315
'pending-merged-patches', 'branch-name',
318
self.controlfile(f, 'w').write('')
319
mutter('created control directory in ' + self.base)
463
321
# if we want per-tree root ids then this is the place to set
464
322
# them; they're not needed for now and so ommitted for
466
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
467
empty_inv = sio.getvalue()
469
bzrlib.weavefile.write_weave_v5(Weave(), sio)
470
empty_weave = sio.getvalue()
472
dirs = [[], 'revision-store', 'weaves']
474
"This is a Bazaar-NG control directory.\n"
475
"Do not change any files in this directory.\n"),
476
('branch-format', BZR_BRANCH_FORMAT_6),
477
('revision-history', ''),
480
('pending-merges', ''),
481
('inventory', empty_inv),
482
('inventory.weave', empty_weave),
483
('ancestry.weave', empty_weave)
485
cfn = self._rel_controlfilename
486
self._transport.mkdir_multi([cfn(d) for d in dirs])
487
self.put_controlfiles(files)
488
mutter('created control directory in ' + self._transport.base)
490
def _check_format(self, relax_version_check):
324
pack_xml(Inventory(), self.controlfile('inventory','w'))
326
def _check_format(self):
491
327
"""Check this branch format is supported.
493
The format level is stored, as an integer, in
494
self._branch_format for code that needs to check it later.
329
The current tool only supports the current unstable format.
496
331
In the future, we might need different in-memory Branch
497
332
classes to support downlevel branches. But not yet.
500
fmt = self.controlfile('branch-format', 'r').read()
502
raise NotBranchError(self.base)
503
mutter("got branch format %r", fmt)
504
if fmt == BZR_BRANCH_FORMAT_6:
505
self._branch_format = 6
506
elif fmt == BZR_BRANCH_FORMAT_5:
507
self._branch_format = 5
508
elif fmt == BZR_BRANCH_FORMAT_4:
509
self._branch_format = 4
511
if (not relax_version_check
512
and self._branch_format not in (5, 6)):
513
raise errors.UnsupportedFormatError(
514
'sorry, branch format %r not supported' % fmt,
334
# This ignores newlines so that we can open branches created
335
# on Windows from Linux and so on. I think it might be better
336
# to always make all internal files in unix format.
337
fmt = self.controlfile('branch-format', 'r').read()
338
fmt.replace('\r\n', '')
339
if fmt != BZR_BRANCH_FORMAT:
340
raise BzrError('sorry, branch format %r not supported' % fmt,
515
341
['use a different bzr version',
516
'or remove the .bzr directory'
517
' and "bzr init" again'])
342
'or remove the .bzr directory and "bzr init" again'])
519
344
def get_root_id(self):
520
345
"""Return the id of this branches root"""
816
642
# the revision, (add signatures/remove signatures) and still
817
643
# have all hash pointers stay consistent.
818
644
# But for now, just hash the contents.
819
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
821
def get_ancestry(self, revision_id):
822
"""Return a list of revision-ids integrated by a revision.
824
This currently returns a list, but the ordering is not guaranteed:
827
if revision_id is None:
829
w = self.get_inventory_weave()
830
return [None] + map(w.idx_to_name,
831
w.inclusions([w.lookup(revision_id)]))
833
def get_inventory_weave(self):
834
return self.control_weaves.get_weave('inventory',
835
self.get_transaction())
837
def get_inventory(self, revision_id):
838
"""Get Inventory object by hash."""
839
xml = self.get_inventory_xml(revision_id)
840
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
842
def get_inventory_xml(self, revision_id):
645
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
648
def get_inventory(self, inventory_id):
649
"""Get Inventory object by hash.
651
TODO: Perhaps for this and similar methods, take a revision
652
parameter which can be either an integer revno or a
654
from bzrlib.inventory import Inventory
655
from bzrlib.xml import unpack_xml
657
return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
660
def get_inventory_xml(self, inventory_id):
843
661
"""Get inventory XML as a file object."""
845
assert isinstance(revision_id, basestring), type(revision_id)
846
iw = self.get_inventory_weave()
847
return iw.get_text(iw.lookup(revision_id))
849
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
662
return self.inventory_store[inventory_id]
851
def get_inventory_sha1(self, revision_id):
665
def get_inventory_sha1(self, inventory_id):
852
666
"""Return the sha1 hash of the inventory entry
854
return self.get_revision(revision_id).inventory_sha1
668
return sha_file(self.get_inventory_xml(inventory_id))
856
671
def get_revision_inventory(self, revision_id):
857
672
"""Return inventory of a past revision."""
858
# TODO: Unify this with get_inventory()
859
# bzr 0.0.6 and later imposes the constraint that the inventory_id
673
# bzr 0.0.6 imposes the constraint that the inventory_id
860
674
# must be the same as its revision, so this is trivial.
861
675
if revision_id == None:
676
from bzrlib.inventory import Inventory
862
677
return Inventory(self.get_root_id())
864
679
return self.get_inventory(revision_id)
866
682
def revision_history(self):
867
"""Return sequence of revision hashes on to this branch."""
683
"""Return sequence of revision hashes on to this branch.
685
>>> ScratchBranch().revision_history()
870
transaction = self.get_transaction()
871
history = transaction.map.find_revision_history()
872
if history is not None:
873
mutter("cache hit for revision-history in %s", self)
875
history = [l.rstrip('\r\n') for l in
690
return [l.rstrip('\r\n') for l in
876
691
self.controlfile('revision-history', 'r').readlines()]
877
transaction.map.add_revision_history(history)
878
# this call is disabled because revision_history is
879
# not really an object yet, and the transaction is for objects.
880
# transaction.register_clean(history, precious=True)
885
696
def common_ancestor(self, other, self_revno=None, other_revno=None):
887
>>> from bzrlib.commit import commit
888
699
>>> sb = ScratchBranch(files=['foo', 'foo~'])
889
700
>>> sb.common_ancestor(sb) == (None, None)
891
>>> commit(sb, "Committing first revision", verbose=False)
702
>>> commit.commit(sb, "Committing first revision", verbose=False)
892
703
>>> sb.common_ancestor(sb)[0]
894
705
>>> clone = sb.clone()
895
>>> commit(sb, "Committing second revision", verbose=False)
706
>>> commit.commit(sb, "Committing second revision", verbose=False)
896
707
>>> sb.common_ancestor(sb)[0]
898
709
>>> sb.common_ancestor(clone)[0]
900
>>> commit(clone, "Committing divergent second revision",
711
>>> commit.commit(clone, "Committing divergent second revision",
901
712
... verbose=False)
902
713
>>> sb.common_ancestor(clone)[0]
989
796
if stop_revision is None:
990
797
stop_revision = other_len
992
assert isinstance(stop_revision, int)
993
if stop_revision > other_len:
994
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
798
elif stop_revision > other_len:
799
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
995
801
return other_history[self_len:stop_revision]
997
804
def update_revisions(self, other, stop_revision=None):
998
"""Pull in new perfect-fit revisions."""
805
"""Pull in all new revisions from other branch.
999
807
from bzrlib.fetch import greedy_fetch
1000
from bzrlib.revision import get_intervening_revisions
1001
if stop_revision is None:
1002
stop_revision = other.last_revision()
1003
if (stop_revision is not None and
1004
stop_revision in self.revision_history()):
1006
greedy_fetch(to_branch=self, from_branch=other,
1007
revision=stop_revision)
1008
pullable_revs = self.missing_revisions(
1009
other, other.revision_id_to_revno(stop_revision))
1011
greedy_fetch(to_branch=self,
1013
revision=pullable_revs[-1])
1014
self.append_revision(*pullable_revs)
809
pb = bzrlib.ui.ui_factory.progress_bar()
810
pb.update('comparing histories')
812
revision_ids = self.missing_revisions(other, stop_revision)
814
if len(revision_ids) > 0:
815
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
818
self.append_revision(*revision_ids)
819
## note("Added %d revisions." % count)
822
def install_revisions(self, other, revision_ids, pb):
823
if hasattr(other.revision_store, "prefetch"):
824
other.revision_store.prefetch(revision_ids)
825
if hasattr(other.inventory_store, "prefetch"):
826
inventory_ids = [other.get_revision(r).inventory_id
827
for r in revision_ids]
828
other.inventory_store.prefetch(inventory_ids)
831
pb = bzrlib.ui.ui_factory.progress_bar()
838
for i, rev_id in enumerate(revision_ids):
839
pb.update('fetching revision', i+1, len(revision_ids))
841
rev = other.get_revision(rev_id)
842
except bzrlib.errors.NoSuchRevision:
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, cp_fail = self.text_store.copy_multi(other.text_store,
858
#print "Added %d texts." % count
859
inventory_ids = [ f.inventory_id for f in revisions ]
860
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
862
#print "Added %d inventories." % count
863
revision_ids = [ f.revision_id for f in revisions]
865
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
868
assert len(cp_fail) == 0
869
return count, failures
1017
872
def commit(self, *args, **kw):
1018
from bzrlib.commit import Commit
1019
Commit().commit(self, *args, **kw)
873
from bzrlib.commit import commit
874
commit(self, *args, **kw)
877
def lookup_revision(self, revision):
878
"""Return the revision identifier for a given revision information."""
879
revno, info = self.get_revision_info(revision)
1021
883
def revision_id_to_revno(self, revision_id):
1022
884
"""Given a revision id, return its revno"""
1023
if revision_id is None:
1025
885
history = self.revision_history()
1027
887
return history.index(revision_id) + 1
1028
888
except ValueError:
1029
889
raise bzrlib.errors.NoSuchRevision(self, revision_id)
1031
def get_rev_id(self, revno, history=None):
1032
"""Find the revision id of the specified revno."""
1036
history = self.revision_history()
1037
elif revno <= 0 or revno > len(history):
1038
raise bzrlib.errors.NoSuchRevision(self, revno)
1039
return history[revno - 1]
892
def get_revision_info(self, revision):
893
"""Return (revno, revision id) for revision identifier.
895
revision can be an integer, in which case it is assumed to be revno (though
896
this will translate negative values into positive ones)
897
revision can also be a string, in which case it is parsed for something like
898
'date:' or 'revid:' etc.
903
try:# Convert to int if possible
904
revision = int(revision)
907
revs = self.revision_history()
908
if isinstance(revision, int):
911
# Mabye we should do this first, but we don't need it if revision == 0
913
revno = len(revs) + revision + 1
916
elif isinstance(revision, basestring):
917
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
918
if revision.startswith(prefix):
919
revno = func(self, revs, revision)
922
raise BzrError('No namespace registered for string: %r' % revision)
924
if revno is None or revno <= 0 or revno > len(revs):
925
raise BzrError("no such revision %s" % revision)
926
return revno, revs[revno-1]
928
def _namespace_revno(self, revs, revision):
929
"""Lookup a revision by revision number"""
930
assert revision.startswith('revno:')
932
return int(revision[6:])
935
REVISION_NAMESPACES['revno:'] = _namespace_revno
937
def _namespace_revid(self, revs, revision):
938
assert revision.startswith('revid:')
940
return revs.index(revision[6:]) + 1
943
REVISION_NAMESPACES['revid:'] = _namespace_revid
945
def _namespace_last(self, revs, revision):
946
assert revision.startswith('last:')
948
offset = int(revision[5:])
953
raise BzrError('You must supply a positive value for --revision last:XXX')
954
return len(revs) - offset + 1
955
REVISION_NAMESPACES['last:'] = _namespace_last
957
def _namespace_tag(self, revs, revision):
958
assert revision.startswith('tag:')
959
raise BzrError('tag: namespace registered, but not implemented.')
960
REVISION_NAMESPACES['tag:'] = _namespace_tag
962
def _namespace_date(self, revs, revision):
963
assert revision.startswith('date:')
965
# Spec for date revisions:
967
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
968
# it can also start with a '+/-/='. '+' says match the first
969
# entry after the given date. '-' is match the first entry before the date
970
# '=' is match the first entry after, but still on the given date.
972
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
973
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
974
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
975
# May 13th, 2005 at 0:00
977
# So the proper way of saying 'give me all entries for today' is:
978
# -r {date:+today}:{date:-tomorrow}
979
# The default is '=' when not supplied
982
if val[:1] in ('+', '-', '='):
983
match_style = val[:1]
986
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
987
if val.lower() == 'yesterday':
988
dt = today - datetime.timedelta(days=1)
989
elif val.lower() == 'today':
991
elif val.lower() == 'tomorrow':
992
dt = today + datetime.timedelta(days=1)
995
# This should be done outside the function to avoid recompiling it.
996
_date_re = re.compile(
997
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
999
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1001
m = _date_re.match(val)
1002
if not m or (not m.group('date') and not m.group('time')):
1003
raise BzrError('Invalid revision date %r' % revision)
1006
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1008
year, month, day = today.year, today.month, today.day
1010
hour = int(m.group('hour'))
1011
minute = int(m.group('minute'))
1012
if m.group('second'):
1013
second = int(m.group('second'))
1017
hour, minute, second = 0,0,0
1019
dt = datetime.datetime(year=year, month=month, day=day,
1020
hour=hour, minute=minute, second=second)
1024
if match_style == '-':
1026
elif match_style == '=':
1027
last = dt + datetime.timedelta(days=1)
1030
for i in range(len(revs)-1, -1, -1):
1031
r = self.get_revision(revs[i])
1032
# TODO: Handle timezone.
1033
dt = datetime.datetime.fromtimestamp(r.timestamp)
1034
if first >= dt and (last is None or dt >= last):
1037
for i in range(len(revs)):
1038
r = self.get_revision(revs[i])
1039
# TODO: Handle timezone.
1040
dt = datetime.datetime.fromtimestamp(r.timestamp)
1041
if first <= dt and (last is None or dt <= last):
1043
REVISION_NAMESPACES['date:'] = _namespace_date
1041
1045
def revision_tree(self, revision_id):
1042
1046
"""Return Tree for a revision on this branch.