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):
237
165
def __repr__(self):
238
166
# this is mostly for helping with testing
239
return '<%s %s>' % (self.__class__.__name__,
242
def needs_branch(self):
243
"""Whether this revision spec needs a branch.
245
Set this to False the branch argument of _match_on is not used.
249
def get_branch(self):
250
"""When the revision specifier contains a branch location, return it.
252
Otherwise, return None.
167
return '<%s %s%s>' % (self.__class__.__name__,
174
class RevisionSpec_int(RevisionSpec):
175
"""Spec is a number. Special case."""
176
def __init__(self, spec):
177
self.spec = int(spec)
179
def _match_on(self, branch, revs):
181
revno = len(revs) + self.spec + 1
184
rev_id = branch.get_rev_id(revno, revs)
185
return RevisionInfo(branch, revno, rev_id)
259
188
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.
270
revno:1 -> return the first revision
271
revno:3:/path/to/branch -> return the 3rd revision of
272
the branch '/path/to/branch'
273
revno:-1 -> The last revision in a branch.
274
-2:http://other/branch -> The second to last revision in the
276
-1000000 -> Most likely the first revision, unless
277
your history is very long.
279
189
prefix = 'revno:'
281
191
def _match_on(self, branch, revs):
282
192
"""Lookup a revision by revision number"""
283
loc = self.spec.find(':')
285
revno_spec = self.spec
288
revno_spec = self.spec[:loc]
289
branch_spec = self.spec[loc+1:]
293
raise errors.InvalidRevisionSpec(self.user_spec,
294
branch, 'cannot have an empty revno and no branch')
298
revno = int(revno_spec)
301
# dotted decimal. This arguably should not be here
302
# but the from_string method is a little primitive
303
# right now - RBC 20060928
305
match_revno = tuple((int(number) for number in revno_spec.split('.')))
306
except ValueError, e:
307
raise errors.InvalidRevisionSpec(self.user_spec, branch, e)
312
# the user has override the branch to look in.
313
# we need to refresh the revision_history map and
315
from bzrlib.branch import Branch
316
branch = Branch.open(branch_spec)
317
# Need to use a new revision history
318
# because we are using a specific branch
319
revs = branch.revision_history()
324
revision_id_to_revno = branch.get_revision_id_to_revno_map()
325
revisions = [revision_id for revision_id, revno
326
in revision_id_to_revno.iteritems()
327
if revno == match_revno]
330
if len(revisions) != 1:
331
return RevisionInfo(branch, None, None)
333
# there is no traditional 'revno' for dotted-decimal revnos.
334
# so for API compatability we return None.
335
return RevisionInfo(branch, None, revisions[0])
338
# if get_rev_id supported negative revnos, there would not be a
339
# need for this special case.
340
if (-revno) >= len(revs):
343
revno = len(revs) + revno + 1
345
revision_id = branch.get_rev_id(revno, revs)
346
except errors.NoSuchRevision:
347
raise errors.InvalidRevisionSpec(self.user_spec, branch)
348
return RevisionInfo(branch, revno, revision_id)
350
def needs_branch(self):
351
return self.spec.find(':') == -1
353
def get_branch(self):
354
if self.spec.find(':') == -1:
357
return self.spec[self.spec.find(':')+1:]
360
RevisionSpec_int = RevisionSpec_revno
194
return RevisionInfo(branch, int(self.spec))
196
return RevisionInfo(branch, None)
362
198
SPEC_TYPES.append(RevisionSpec_revno)
365
201
class RevisionSpec_revid(RevisionSpec):
366
"""Selects a revision using the revision id."""
368
help_txt = """Selects a revision using the revision id.
370
Supply a specific revision id, that can be used to specify any
371
revision id in the ancestry of the branch.
372
Including merges, and pending merges.
374
revid:aaaa@bbbb-123456789 -> Select revision 'aaaa@bbbb-123456789'
376
202
prefix = 'revid:'
378
204
def _match_on(self, branch, revs):
379
# self.spec comes straight from parsing the command line arguments,
380
# so we expect it to be a Unicode string. Switch it to the internal
382
revision_id = osutils.safe_revision_id(self.spec, warn=False)
383
return RevisionInfo.from_revision_id(branch, revision_id, revs)
206
return RevisionInfo(branch, revs.index(self.spec) + 1, self.spec)
208
return RevisionInfo(branch, None, self.spec)
385
210
SPEC_TYPES.append(RevisionSpec_revid)
388
213
class RevisionSpec_last(RevisionSpec):
389
"""Selects the nth revision from the end."""
391
help_txt = """Selects the nth revision from the end.
393
Supply a positive number to get the nth revision from the end.
394
This is the same as supplying negative numbers to the 'revno:' spec.
396
last:1 -> return the last revision
397
last:3 -> return the revision 2 before the end.
402
217
def _match_on(self, branch, revs):
405
raise errors.NoCommits(branch)
406
return RevisionInfo(branch, len(revs), revs[-1])
409
219
offset = int(self.spec)
410
except ValueError, e:
411
raise errors.InvalidRevisionSpec(self.user_spec, branch, e)
414
raise errors.InvalidRevisionSpec(self.user_spec, branch,
415
'you must supply a positive value')
416
revno = len(revs) - offset + 1
418
revision_id = branch.get_rev_id(revno, revs)
419
except errors.NoSuchRevision:
420
raise errors.InvalidRevisionSpec(self.user_spec, branch)
421
return RevisionInfo(branch, revno, revision_id)
221
return RevisionInfo(branch, None)
224
raise BzrError('You must supply a positive value for --revision last:XXX')
225
return RevisionInfo(branch, len(revs) - offset + 1)
423
227
SPEC_TYPES.append(RevisionSpec_last)
426
230
class RevisionSpec_before(RevisionSpec):
427
"""Selects the parent of the revision specified."""
429
help_txt = """Selects the parent of the revision specified.
431
Supply any revision spec to return the parent of that revision.
432
It is an error to request the parent of the null revision (before:0).
433
This is mostly useful when inspecting revisions that are not in the
434
revision history of a branch.
437
before:1913 -> Return the parent of revno 1913 (revno 1912)
438
before:revid:aaaa@bbbb-1234567890 -> return the parent of revision
440
bzr diff -r before:revid:aaaa..revid:aaaa
441
-> Find the changes between revision 'aaaa' and its parent.
442
(what changes did 'aaaa' introduce)
445
232
prefix = 'before:'
447
234
def _match_on(self, branch, revs):
448
r = RevisionSpec.from_string(self.spec)._match_on(branch, revs)
450
raise errors.InvalidRevisionSpec(self.user_spec, branch,
451
'cannot go before the null: revision')
453
# We need to use the repository history here
454
rev = branch.repository.get_revision(r.rev_id)
455
if not rev.parent_ids:
459
revision_id = rev.parent_ids[0]
461
revno = revs.index(revision_id) + 1
467
revision_id = branch.get_rev_id(revno, revs)
468
except errors.NoSuchRevision:
469
raise errors.InvalidRevisionSpec(self.user_spec,
471
return RevisionInfo(branch, revno, revision_id)
235
r = RevisionSpec(self.spec)._match_on(branch, revs)
236
if (r.revno is None) or (r.revno == 0):
238
return RevisionInfo(branch, r.revno - 1)
473
240
SPEC_TYPES.append(RevisionSpec_before)
476
243
class RevisionSpec_tag(RevisionSpec):
477
"""Select a revision identified by tag name"""
479
help_txt = """Selects a revision identified by a tag name.
481
Tags are stored in the branch and created by the 'tag' command.
486
246
def _match_on(self, branch, revs):
487
# Can raise tags not supported, NoSuchTag, etc
488
return RevisionInfo.from_revision_id(branch,
489
branch.tags.lookup_tag(self.spec),
247
raise BzrError('tag: namespace registered, but not implemented.')
492
249
SPEC_TYPES.append(RevisionSpec_tag)
495
class _RevListToTimestamps(object):
496
"""This takes a list of revisions, and allows you to bisect by date"""
498
__slots__ = ['revs', 'branch']
252
class RevisionSpec_revs:
500
253
def __init__(self, revs, branch):
502
255
self.branch = branch
504
256
def __getitem__(self, index):
505
"""Get the date of the index'd item"""
506
257
r = self.branch.repository.get_revision(self.revs[index])
507
258
# TODO: Handle timezone.
508
259
return datetime.datetime.fromtimestamp(r.timestamp)
510
260
def __len__(self):
511
261
return len(self.revs)
514
264
class RevisionSpec_date(RevisionSpec):
515
"""Selects a revision on the basis of a datestamp."""
517
help_txt = """Selects a revision on the basis of a datestamp.
519
Supply a datestamp to select the first revision that matches the date.
520
Date can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
521
Matches the first entry after a given date (either at midnight or
522
at a specified time).
524
One way to display all the changes since yesterday would be:
525
bzr log -r date:yesterday..-1
528
date:yesterday -> select the first revision since yesterday
529
date:2006-08-14,17:10:14 -> select the first revision after
530
August 14th, 2006 at 5:10pm.
533
266
_date_re = re.compile(
534
267
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
600
324
class RevisionSpec_ancestor(RevisionSpec):
601
"""Selects a common ancestor with a second branch."""
603
help_txt = """Selects a common ancestor with a second branch.
605
Supply the path to a branch to select the common ancestor.
607
The common ancestor is the last revision that existed in both
608
branches. Usually this is the branch point, but it could also be
609
a revision that was merged.
611
This is frequently used with 'diff' to return all of the changes
612
that your branch introduces, while excluding the changes that you
613
have not merged from the remote branch.
616
ancestor:/path/to/branch
617
$ bzr diff -r ancestor:../../mainline/branch
619
325
prefix = 'ancestor:'
621
327
def _match_on(self, branch, revs):
622
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
623
return self._find_revision_info(branch, self.spec)
626
def _find_revision_info(branch, other_location):
627
from bzrlib.branch import Branch
629
other_branch = Branch.open(other_location)
328
from branch import Branch
329
from revision import common_ancestor, MultipleRevisionSources
330
other_branch = Branch.open_containing(self.spec)[0]
630
331
revision_a = branch.last_revision()
631
332
revision_b = other_branch.last_revision()
632
333
for r, b in ((revision_a, branch), (revision_b, other_branch)):
633
if r in (None, revision.NULL_REVISION):
634
raise errors.NoCommits(b)
635
revision_source = revision.MultipleRevisionSources(
636
branch.repository, other_branch.repository)
637
graph = branch.repository.get_graph(other_branch.repository)
638
revision_a = revision.ensure_null(revision_a)
639
revision_b = revision.ensure_null(revision_b)
640
if revision.NULL_REVISION in (revision_a, revision_b):
641
rev_id = revision.NULL_REVISION
643
rev_id = graph.find_unique_lca(revision_a, revision_b)
644
if rev_id == revision.NULL_REVISION:
645
raise errors.NoCommonAncestor(revision_a, revision_b)
336
revision_source = MultipleRevisionSources(branch.repository,
337
other_branch.repository)
338
rev_id = common_ancestor(revision_a, revision_b, revision_source)
647
340
revno = branch.revision_id_to_revno(rev_id)
648
except errors.NoSuchRevision:
341
except NoSuchRevision:
650
343
return RevisionInfo(branch, revno, rev_id)
653
345
SPEC_TYPES.append(RevisionSpec_ancestor)
656
347
class RevisionSpec_branch(RevisionSpec):
657
"""Selects the last revision of a specified branch."""
659
help_txt = """Selects the last revision of a specified branch.
661
Supply the path to a branch to select its last revision.
664
branch:/path/to/branch
348
"""A branch: revision specifier.
350
This takes the path to a branch and returns its tip revision id.
666
352
prefix = 'branch:'
668
354
def _match_on(self, branch, revs):
669
from bzrlib.branch import Branch
670
other_branch = Branch.open(self.spec)
355
from branch import Branch
356
other_branch = Branch.open_containing(self.spec)[0]
671
357
revision_b = other_branch.last_revision()
672
if revision_b in (None, revision.NULL_REVISION):
673
raise errors.NoCommits(other_branch)
358
if revision_b is None:
359
raise NoCommits(other_branch)
674
360
# pull in the remote revisions so we can diff
675
361
branch.fetch(other_branch, revision_b)
677
363
revno = branch.revision_id_to_revno(revision_b)
678
except errors.NoSuchRevision:
364
except NoSuchRevision:
680
366
return RevisionInfo(branch, revno, revision_b)
682
368
SPEC_TYPES.append(RevisionSpec_branch)
685
class RevisionSpec_submit(RevisionSpec_ancestor):
686
"""Selects a common ancestor with a submit branch."""
688
help_txt = """Selects a common ancestor with the submit branch.
690
Diffing against this shows all the changes that were made in this branch,
691
and is a good predictor of what merge will do. The submit branch is
692
used by the bundle and merge directive comands. If no submit branch
693
is specified, the parent branch is used instead.
695
The common ancestor is the last revision that existed in both
696
branches. Usually this is the branch point, but it could also be
697
a revision that was merged.
700
$ bzr diff -r submit:
705
def _match_on(self, branch, revs):
706
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
707
submit_location = branch.get_submit_branch()
708
location_type = 'submit branch'
709
if submit_location is None:
710
submit_location = branch.get_parent()
711
location_type = 'parent branch'
712
if submit_location is None:
713
raise errors.NoSubmitBranch(branch)
714
trace.note('Using %s %s', location_type, submit_location)
715
return self._find_revision_info(branch, submit_location)
718
SPEC_TYPES.append(RevisionSpec_submit)
added
removed
bzrlib/revisionspec.py
