137
def __new__(cls, spec, _internal=False):
139
return object.__new__(cls, spec, _internal=_internal)
141
symbol_versioning.warn('Creating a RevisionSpec directly has'
142
' been deprecated in version 0.11. Use'
143
' RevisionSpec.from_string()'
145
DeprecationWarning, stacklevel=2)
146
return RevisionSpec.from_string(spec)
149
def from_string(spec):
150
"""Parse a revision spec string into a RevisionSpec object.
152
:param spec: A string specified by the user
153
:return: A RevisionSpec object that understands how to parse the
108
def __new__(cls, spec, foo=_marker):
109
"""Parse a revision specifier.
156
if not isinstance(spec, (type(None), basestring)):
157
raise TypeError('error')
160
return RevisionSpec(None, _internal=True)
162
assert isinstance(spec, basestring), \
163
"You should only supply strings not %s" % (type(spec),)
165
for spectype in SPEC_TYPES:
166
if spec.startswith(spectype.prefix):
167
trace.mutter('Returning RevisionSpec %s for %s',
168
spectype.__name__, spec)
169
return spectype(spec, _internal=True)
112
return object.__new__(RevisionSpec, spec)
119
if isinstance(spec, int):
120
return object.__new__(RevisionSpec_int, spec)
121
elif isinstance(spec, basestring):
122
for spectype in SPEC_TYPES:
123
if spec.startswith(spectype.prefix):
124
return object.__new__(spectype, spec)
126
raise BzrError('No namespace registered for string: %r' %
171
# RevisionSpec_revno is special cased, because it is the only
172
# one that directly handles plain integers
173
# TODO: This should not be special cased rather it should be
174
# a method invocation on spectype.canparse()
176
if _revno_regex is None:
177
_revno_regex = re.compile(r'^(?:(\d+(\.\d+)*)|-\d+)(:.*)?$')
178
if _revno_regex.match(spec) is not None:
179
return RevisionSpec_revno(spec, _internal=True)
181
raise errors.NoSuchRevisionSpec(spec)
183
def __init__(self, spec, _internal=False):
184
"""Create a RevisionSpec referring to the Null revision.
186
:param spec: The original spec supplied by the user
187
:param _internal: Used to ensure that RevisionSpec is not being
188
called directly. Only from RevisionSpec.from_string()
191
# XXX: Update this after 0.10 is released
192
symbol_versioning.warn('Creating a RevisionSpec directly has'
193
' been deprecated in version 0.11. Use'
194
' RevisionSpec.from_string()'
196
DeprecationWarning, stacklevel=2)
197
self.user_spec = spec
129
raise TypeError('Unhandled revision type %s' % spec)
131
def __init__(self, spec):
198
132
if self.prefix and spec.startswith(self.prefix):
199
133
spec = spec[len(self.prefix):]
202
136
def _match_on(self, branch, revs):
203
trace.mutter('Returning RevisionSpec._match_on: None')
204
137
return RevisionInfo(branch, 0, None)
206
139
def _match_on_and_check(self, branch, revs):
249
def get_branch(self):
250
"""When the revision specifier contains a branch location, return it.
252
Otherwise, return None.
183
class RevisionSpec_int(RevisionSpec):
184
"""Spec is a number. Special case."""
185
def __init__(self, spec):
186
self.spec = int(spec)
188
def _match_on(self, branch, revs):
190
revno = len(revs) + self.spec + 1
193
rev_id = branch.get_rev_id(revno, revs)
194
return RevisionInfo(branch, revno, rev_id)
259
197
class RevisionSpec_revno(RevisionSpec):
260
"""Selects a revision using a number."""
262
help_txt = """Selects a revision using a number.
264
Use an integer to specify a revision in the history of the branch.
265
Optionally a branch can be specified. The 'revno:' prefix is optional.
266
A negative number will count from the end of the branch (-1 is the
267
last revision, -2 the previous one). If the negative number is larger
268
than the branch's history, the first revision is returned.
271
revno:1 -> return the first revision
272
revno:3:/path/to/branch -> return the 3rd revision of
273
the branch '/path/to/branch'
274
revno:-1 -> The last revision in a branch.
275
-2:http://other/branch -> The second to last revision in the
277
-1000000 -> Most likely the first revision, unless
278
your history is very long.
280
198
prefix = 'revno:'
282
200
def _match_on(self, branch, revs):
283
201
"""Lookup a revision by revision number"""
284
loc = self.spec.find(':')
286
revno_spec = self.spec
289
revno_spec = self.spec[:loc]
290
branch_spec = self.spec[loc+1:]
294
raise errors.InvalidRevisionSpec(self.user_spec,
295
branch, 'cannot have an empty revno and no branch')
299
revno = int(revno_spec)
302
# dotted decimal. This arguably should not be here
303
# but the from_string method is a little primitive
304
# right now - RBC 20060928
306
match_revno = tuple((int(number) for number in revno_spec.split('.')))
307
except ValueError, e:
308
raise errors.InvalidRevisionSpec(self.user_spec, branch, e)
313
# the user has override the branch to look in.
314
# we need to refresh the revision_history map and
316
from bzrlib.branch import Branch
317
branch = Branch.open(branch_spec)
318
# Need to use a new revision history
319
# because we are using a specific branch
320
revs = branch.revision_history()
325
revision_id_to_revno = branch.get_revision_id_to_revno_map()
326
revisions = [revision_id for revision_id, revno
327
in revision_id_to_revno.iteritems()
328
if revno == match_revno]
331
if len(revisions) != 1:
332
return RevisionInfo(branch, None, None)
334
# there is no traditional 'revno' for dotted-decimal revnos.
335
# so for API compatability we return None.
336
return RevisionInfo(branch, None, revisions[0])
339
# if get_rev_id supported negative revnos, there would not be a
340
# need for this special case.
341
if (-revno) >= len(revs):
344
revno = len(revs) + revno + 1
346
revision_id = branch.get_rev_id(revno, revs)
347
except errors.NoSuchRevision:
348
raise errors.InvalidRevisionSpec(self.user_spec, branch)
349
return RevisionInfo(branch, revno, revision_id)
202
if self.spec.find(':') == -1:
204
return RevisionInfo(branch, int(self.spec))
206
return RevisionInfo(branch, None)
208
from branch import Branch
209
revname = self.spec[self.spec.find(':')+1:]
210
other_branch = Branch.open_containing(revname)[0]
212
revno = int(self.spec[:self.spec.find(':')])
214
return RevisionInfo(other_branch, None)
215
revid = other_branch.get_rev_id(revno)
216
return RevisionInfo(other_branch, revno)
351
218
def needs_branch(self):
352
219
return self.spec.find(':') == -1
354
def get_branch(self):
355
if self.spec.find(':') == -1:
358
return self.spec[self.spec.find(':')+1:]
361
RevisionSpec_int = RevisionSpec_revno
363
221
SPEC_TYPES.append(RevisionSpec_revno)
366
224
class RevisionSpec_revid(RevisionSpec):
367
"""Selects a revision using the revision id."""
369
help_txt = """Selects a revision using the revision id.
371
Supply a specific revision id, that can be used to specify any
372
revision id in the ancestry of the branch.
373
Including merges, and pending merges.
376
revid:aaaa@bbbb-123456789 -> Select revision 'aaaa@bbbb-123456789'
378
225
prefix = 'revid:'
380
227
def _match_on(self, branch, revs):
381
# self.spec comes straight from parsing the command line arguments,
382
# so we expect it to be a Unicode string. Switch it to the internal
384
revision_id = osutils.safe_revision_id(self.spec, warn=False)
385
return RevisionInfo.from_revision_id(branch, revision_id, revs)
229
return RevisionInfo(branch, revs.index(self.spec) + 1, self.spec)
231
return RevisionInfo(branch, None, self.spec)
387
233
SPEC_TYPES.append(RevisionSpec_revid)
390
236
class RevisionSpec_last(RevisionSpec):
391
"""Selects the nth revision from the end."""
393
help_txt = """Selects the nth revision from the end.
395
Supply a positive number to get the nth revision from the end.
396
This is the same as supplying negative numbers to the 'revno:' spec.
399
last:1 -> return the last revision
400
last:3 -> return the revision 2 before the end.
405
240
def _match_on(self, branch, revs):
408
raise errors.NoCommits(branch)
409
return RevisionInfo(branch, len(revs), revs[-1])
412
242
offset = int(self.spec)
413
except ValueError, e:
414
raise errors.InvalidRevisionSpec(self.user_spec, branch, e)
417
raise errors.InvalidRevisionSpec(self.user_spec, branch,
418
'you must supply a positive value')
419
revno = len(revs) - offset + 1
421
revision_id = branch.get_rev_id(revno, revs)
422
except errors.NoSuchRevision:
423
raise errors.InvalidRevisionSpec(self.user_spec, branch)
424
return RevisionInfo(branch, revno, revision_id)
244
return RevisionInfo(branch, None)
247
raise BzrError('You must supply a positive value for --revision last:XXX')
248
return RevisionInfo(branch, len(revs) - offset + 1)
426
250
SPEC_TYPES.append(RevisionSpec_last)
429
253
class RevisionSpec_before(RevisionSpec):
430
"""Selects the parent of the revision specified."""
432
help_txt = """Selects the parent of the revision specified.
434
Supply any revision spec to return the parent of that revision.
435
It is an error to request the parent of the null revision (before:0).
436
This is mostly useful when inspecting revisions that are not in the
437
revision history of a branch.
441
before:1913 -> Return the parent of revno 1913 (revno 1912)
442
before:revid:aaaa@bbbb-1234567890 -> return the parent of revision
444
bzr diff -r before:revid:aaaa..revid:aaaa
445
-> Find the changes between revision 'aaaa' and its parent.
446
(what changes did 'aaaa' introduce)
449
255
prefix = 'before:'
451
257
def _match_on(self, branch, revs):
452
r = RevisionSpec.from_string(self.spec)._match_on(branch, revs)
454
raise errors.InvalidRevisionSpec(self.user_spec, branch,
455
'cannot go before the null: revision')
457
# We need to use the repository history here
458
rev = branch.repository.get_revision(r.rev_id)
459
if not rev.parent_ids:
461
revision_id = revision.NULL_REVISION
463
revision_id = rev.parent_ids[0]
465
revno = revs.index(revision_id) + 1
471
revision_id = branch.get_rev_id(revno, revs)
472
except errors.NoSuchRevision:
473
raise errors.InvalidRevisionSpec(self.user_spec,
475
return RevisionInfo(branch, revno, revision_id)
258
r = RevisionSpec(self.spec)._match_on(branch, revs)
259
if (r.revno is None) or (r.revno == 0):
261
return RevisionInfo(branch, r.revno - 1)
477
263
SPEC_TYPES.append(RevisionSpec_before)
480
266
class RevisionSpec_tag(RevisionSpec):
481
"""Select a revision identified by tag name"""
483
help_txt = """Selects a revision identified by a tag name.
485
Tags are stored in the branch and created by the 'tag' command.
490
269
def _match_on(self, branch, revs):
491
# Can raise tags not supported, NoSuchTag, etc
492
return RevisionInfo.from_revision_id(branch,
493
branch.tags.lookup_tag(self.spec),
270
raise BzrError('tag: namespace registered, but not implemented.')
496
272
SPEC_TYPES.append(RevisionSpec_tag)
499
class _RevListToTimestamps(object):
500
"""This takes a list of revisions, and allows you to bisect by date"""
502
__slots__ = ['revs', 'branch']
275
class RevisionSpec_revs:
504
276
def __init__(self, revs, branch):
506
278
self.branch = branch
508
279
def __getitem__(self, index):
509
"""Get the date of the index'd item"""
510
280
r = self.branch.repository.get_revision(self.revs[index])
511
281
# TODO: Handle timezone.
512
282
return datetime.datetime.fromtimestamp(r.timestamp)
514
283
def __len__(self):
515
284
return len(self.revs)
518
287
class RevisionSpec_date(RevisionSpec):
519
"""Selects a revision on the basis of a datestamp."""
521
help_txt = """Selects a revision on the basis of a datestamp.
523
Supply a datestamp to select the first revision that matches the date.
524
Date can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
525
Matches the first entry after a given date (either at midnight or
526
at a specified time).
528
One way to display all the changes since yesterday would be::
530
bzr log -r date:yesterday..-1
534
date:yesterday -> select the first revision since yesterday
535
date:2006-08-14,17:10:14 -> select the first revision after
536
August 14th, 2006 at 5:10pm.
539
289
_date_re = re.compile(
540
290
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
606
347
class RevisionSpec_ancestor(RevisionSpec):
607
"""Selects a common ancestor with a second branch."""
609
help_txt = """Selects a common ancestor with a second branch.
611
Supply the path to a branch to select the common ancestor.
613
The common ancestor is the last revision that existed in both
614
branches. Usually this is the branch point, but it could also be
615
a revision that was merged.
617
This is frequently used with 'diff' to return all of the changes
618
that your branch introduces, while excluding the changes that you
619
have not merged from the remote branch.
623
ancestor:/path/to/branch
624
$ bzr diff -r ancestor:../../mainline/branch
626
348
prefix = 'ancestor:'
628
350
def _match_on(self, branch, revs):
629
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
630
return self._find_revision_info(branch, self.spec)
633
def _find_revision_info(branch, other_location):
634
from bzrlib.branch import Branch
636
other_branch = Branch.open(other_location)
351
from branch import Branch
352
from revision import common_ancestor, MultipleRevisionSources
353
other_branch = Branch.open_containing(self.spec)[0]
637
354
revision_a = branch.last_revision()
638
355
revision_b = other_branch.last_revision()
639
356
for r, b in ((revision_a, branch), (revision_b, other_branch)):
640
if r in (None, revision.NULL_REVISION):
641
raise errors.NoCommits(b)
642
revision_source = revision.MultipleRevisionSources(
643
branch.repository, other_branch.repository)
644
graph = branch.repository.get_graph(other_branch.repository)
645
revision_a = revision.ensure_null(revision_a)
646
revision_b = revision.ensure_null(revision_b)
647
if revision.NULL_REVISION in (revision_a, revision_b):
648
rev_id = revision.NULL_REVISION
650
rev_id = graph.find_unique_lca(revision_a, revision_b)
651
if rev_id == revision.NULL_REVISION:
652
raise errors.NoCommonAncestor(revision_a, revision_b)
359
revision_source = MultipleRevisionSources(branch.repository,
360
other_branch.repository)
361
rev_id = common_ancestor(revision_a, revision_b, revision_source)
654
363
revno = branch.revision_id_to_revno(rev_id)
655
except errors.NoSuchRevision:
364
except NoSuchRevision:
657
366
return RevisionInfo(branch, revno, rev_id)
660
368
SPEC_TYPES.append(RevisionSpec_ancestor)
663
370
class RevisionSpec_branch(RevisionSpec):
664
"""Selects the last revision of a specified branch."""
666
help_txt = """Selects the last revision of a specified branch.
668
Supply the path to a branch to select its last revision.
672
branch:/path/to/branch
371
"""A branch: revision specifier.
373
This takes the path to a branch and returns its tip revision id.
674
375
prefix = 'branch:'
676
377
def _match_on(self, branch, revs):
677
from bzrlib.branch import Branch
678
other_branch = Branch.open(self.spec)
378
from branch import Branch
379
other_branch = Branch.open_containing(self.spec)[0]
679
380
revision_b = other_branch.last_revision()
680
if revision_b in (None, revision.NULL_REVISION):
681
raise errors.NoCommits(other_branch)
381
if revision_b is None:
382
raise NoCommits(other_branch)
682
383
# pull in the remote revisions so we can diff
683
384
branch.fetch(other_branch, revision_b)
685
386
revno = branch.revision_id_to_revno(revision_b)
686
except errors.NoSuchRevision:
387
except NoSuchRevision:
688
389
return RevisionInfo(branch, revno, revision_b)
690
391
SPEC_TYPES.append(RevisionSpec_branch)
693
class RevisionSpec_submit(RevisionSpec_ancestor):
694
"""Selects a common ancestor with a submit branch."""
696
help_txt = """Selects a common ancestor with the submit branch.
698
Diffing against this shows all the changes that were made in this branch,
699
and is a good predictor of what merge will do. The submit branch is
700
used by the bundle and merge directive comands. If no submit branch
701
is specified, the parent branch is used instead.
703
The common ancestor is the last revision that existed in both
704
branches. Usually this is the branch point, but it could also be
705
a revision that was merged.
709
$ bzr diff -r submit:
714
def _match_on(self, branch, revs):
715
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
716
submit_location = branch.get_submit_branch()
717
location_type = 'submit branch'
718
if submit_location is None:
719
submit_location = branch.get_parent()
720
location_type = 'parent branch'
721
if submit_location is None:
722
raise errors.NoSubmitBranch(branch)
723
trace.note('Using %s %s', location_type, submit_location)
724
return self._find_revision_info(branch, submit_location)
727
SPEC_TYPES.append(RevisionSpec_submit)
added
removed
bzrlib/revisionspec.py
