117
113
return RevisionInfo(branch, revno, revision_id)
116
# classes in this list should have a "prefix" attribute, against which
117
# string specs are matched
120
121
class RevisionSpec(object):
121
122
"""A parsed revision specification."""
123
124
help_txt = """A parsed revision specification.
125
A revision specification is a string, which may be unambiguous about
126
what it represents by giving a prefix like 'date:' or 'revid:' etc,
127
or it may have no prefix, in which case it's tried against several
128
specifier types in sequence to determine what the user meant.
126
A revision specification can be an integer, in which case it is
127
assumed to be a revno (though this will translate negative values
128
into positive ones); or it can be a string, in which case it is
129
parsed for something like 'date:' or 'revid:' etc.
130
131
Revision specs are an UI element, and they have been moved out
131
132
of the branch class to leave "back-end" classes unaware of such
167
160
spectype.__name__, spec)
168
161
return spectype(spec, _internal=True)
170
# Otherwise treat it as a DWIM, build the RevisionSpec object and
171
# wait for _match_on to be called.
172
return RevisionSpec_dwim(spec, _internal=True)
163
for spectype in SPEC_TYPES:
164
if spec.startswith(spectype.prefix):
165
trace.mutter('Returning RevisionSpec %s for %s',
166
spectype.__name__, spec)
167
return spectype(spec, _internal=True)
168
# RevisionSpec_revno is special cased, because it is the only
169
# one that directly handles plain integers
170
# TODO: This should not be special cased rather it should be
171
# a method invocation on spectype.canparse()
173
if _revno_regex is None:
174
_revno_regex = re.compile(r'^(?:(\d+(\.\d+)*)|-\d+)(:.*)?$')
175
if _revno_regex.match(spec) is not None:
176
return RevisionSpec_revno(spec, _internal=True)
178
raise errors.NoSuchRevisionSpec(spec)
174
180
def __init__(self, spec, _internal=False):
175
181
"""Create a RevisionSpec referring to the Null revision.
287
class RevisionSpec_dwim(RevisionSpec):
288
"""Provides a DWIMish revision specifier lookup.
290
Note that this does not go in the revspec_registry because by definition
291
there is no prefix to identify it. It's solely called from
292
RevisionSpec.from_string() because the DWIMification happen when _match_on
293
is called so the string describing the revision is kept here until needed.
297
# We don't need to build the revision history ourself, that's delegated to
298
# each revspec we try.
299
wants_revision_history = False
301
_revno_regex = lazy_regex.lazy_compile(r'^(?:(\d+(\.\d+)*)|-\d+)(:.*)?$')
303
# The revspecs to try
304
_possible_revspecs = []
306
def _try_spectype(self, rstype, branch):
307
rs = rstype(self.spec, _internal=True)
308
# Hit in_history to find out if it exists, or we need to try the
310
return rs.in_history(branch)
312
def _match_on(self, branch, revs):
313
"""Run the lookup and see what we can get."""
315
# First, see if it's a revno
316
if self._revno_regex.match(self.spec) is not None:
318
return self._try_spectype(RevisionSpec_revno, branch)
319
except RevisionSpec_revno.dwim_catchable_exceptions:
322
# Next see what has been registered
323
for objgetter in self._possible_revspecs:
324
rs_class = objgetter.get_obj()
326
return self._try_spectype(rs_class, branch)
327
except rs_class.dwim_catchable_exceptions:
330
# Try the old (deprecated) dwim list:
331
for rs_class in dwim_revspecs:
333
return self._try_spectype(rs_class, branch)
334
except rs_class.dwim_catchable_exceptions:
337
# Well, I dunno what it is. Note that we don't try to keep track of the
338
# first of last exception raised during the DWIM tries as none seems
340
raise errors.InvalidRevisionSpec(self.spec, branch)
343
def append_possible_revspec(cls, revspec):
344
"""Append a possible DWIM revspec.
346
:param revspec: Revision spec to try.
348
cls._possible_revspecs.append(registry._ObjectGetter(revspec))
351
def append_possible_lazy_revspec(cls, module_name, member_name):
352
"""Append a possible lazily loaded DWIM revspec.
354
:param module_name: Name of the module with the revspec
355
:param member_name: Name of the revspec within the module
357
cls._possible_revspecs.append(
358
registry._LazyObjectGetter(module_name, member_name))
361
293
class RevisionSpec_revno(RevisionSpec):
362
294
"""Selects a revision using a number."""
364
296
help_txt = """Selects a revision using a number.
366
298
Use an integer to specify a revision in the history of the branch.
367
Optionally a branch can be specified. A negative number will count
368
from the end of the branch (-1 is the last revision, -2 the previous
369
one). If the negative number is larger than the branch's history, the
370
first revision is returned.
299
Optionally a branch can be specified. The 'revno:' prefix is optional.
300
A negative number will count from the end of the branch (-1 is the
301
last revision, -2 the previous one). If the negative number is larger
302
than the branch's history, the first revision is returned.
373
305
revno:1 -> return the first revision of this branch
471
class RevisionIDSpec(RevisionSpec):
473
def _match_on(self, branch, revs):
474
revision_id = self.as_revision_id(branch)
475
return RevisionInfo.from_revision_id(branch, revision_id, revs)
478
class RevisionSpec_revid(RevisionIDSpec):
403
class RevisionSpec_revid(RevisionSpec):
479
404
"""Selects a revision using the revision id."""
481
406
help_txt = """Selects a revision using the revision id.
491
416
prefix = 'revid:'
493
def _as_revision_id(self, context_branch):
418
def _match_on(self, branch, revs):
494
419
# self.spec comes straight from parsing the command line arguments,
495
420
# so we expect it to be a Unicode string. Switch it to the internal
496
421
# representation.
422
revision_id = osutils.safe_revision_id(self.spec, warn=False)
423
return RevisionInfo.from_revision_id(branch, revision_id, revs)
425
def _as_revision_id(self, context_branch):
497
426
return osutils.safe_revision_id(self.spec, warn=False)
840
767
revision_b = other_branch.last_revision()
841
768
if revision_b in (None, revision.NULL_REVISION):
842
769
raise errors.NoCommits(other_branch)
844
branch = other_branch
847
# pull in the remote revisions so we can diff
848
branch.fetch(other_branch, revision_b)
849
except errors.ReadOnlyError:
850
branch = other_branch
770
# pull in the remote revisions so we can diff
771
branch.fetch(other_branch, revision_b)
852
773
revno = branch.revision_id_to_revno(revision_b)
853
774
except errors.NoSuchRevision:
923
838
self._get_submit_location(context_branch))
926
class RevisionSpec_annotate(RevisionIDSpec):
930
help_txt = """Select the revision that last modified the specified line.
932
Select the revision that last modified the specified line. Line is
933
specified as path:number. Path is a relative path to the file. Numbers
934
start at 1, and are relative to the current version, not the last-
935
committed version of the file.
938
def _raise_invalid(self, numstring, context_branch):
939
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
940
'No such line: %s' % numstring)
942
def _as_revision_id(self, context_branch):
943
path, numstring = self.spec.rsplit(':', 1)
945
index = int(numstring) - 1
947
self._raise_invalid(numstring, context_branch)
948
tree, file_path = workingtree.WorkingTree.open_containing(path)
951
file_id = tree.path2id(file_path)
953
raise errors.InvalidRevisionSpec(self.user_spec,
954
context_branch, "File '%s' is not versioned." %
956
revision_ids = [r for (r, l) in tree.annotate_iter(file_id)]
960
revision_id = revision_ids[index]
962
self._raise_invalid(numstring, context_branch)
963
if revision_id == revision.CURRENT_REVISION:
964
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
965
'Line %s has not been committed.' % numstring)
969
class RevisionSpec_mainline(RevisionIDSpec):
971
help_txt = """Select mainline revision that merged the specified revision.
973
Select the revision that merged the specified revision into mainline.
978
def _as_revision_id(self, context_branch):
979
revspec = RevisionSpec.from_string(self.spec)
980
if revspec.get_branch() is None:
981
spec_branch = context_branch
983
spec_branch = _mod_branch.Branch.open(revspec.get_branch())
984
revision_id = revspec.as_revision_id(spec_branch)
985
graph = context_branch.repository.get_graph()
986
result = graph.find_lefthand_merger(revision_id,
987
context_branch.last_revision())
989
raise errors.InvalidRevisionSpec(self.user_spec, context_branch)
993
# The order in which we want to DWIM a revision spec without any prefix.
994
# revno is always tried first and isn't listed here, this is used by
995
# RevisionSpec_dwim._match_on
996
dwim_revspecs = symbol_versioning.deprecated_list(
997
symbol_versioning.deprecated_in((2, 4, 0)), "dwim_revspecs", [])
999
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_tag)
1000
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_revid)
1001
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_date)
1002
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_branch)
1004
841
revspec_registry = registry.Registry()
1005
842
def _register_revspec(revspec):
1006
843
revspec_registry.register(revspec.prefix, revspec)
added
removed
bzrlib/revisionspec.py
