217
199
return self._parents == other._parents \
218
200
and self._weave == other._weave \
219
201
and self._sha1s == other._sha1s
221
204
def __ne__(self, other):
222
205
return not self.__eq__(other)
224
@deprecated_method(zero_eight)
225
def idx_to_name(self, index):
226
"""Old public interface, the public interface is all names now."""
229
def _idx_to_name(self, version):
230
return self._names[version]
232
@deprecated_method(zero_eight)
207
def __contains__(self, name):
208
return self._name_map.has_key(name)
210
def maybe_lookup(self, name_or_index):
211
"""Convert possible symbolic name to index, or pass through indexes."""
212
if isinstance(name_or_index, (int, long)):
215
return self.lookup(name_or_index)
233
218
def lookup(self, name):
234
"""Backwards compatibility thunk:
236
Return name, as name is valid in the api now, and spew deprecation
241
def _lookup(self, name):
242
219
"""Convert symbolic version name to index."""
244
221
return self._name_map[name]
246
raise RevisionNotPresent(name, self._weave_name)
248
@deprecated_method(zero_eight)
249
def iter_names(self):
250
"""Deprecated convenience function, please see VersionedFile.names()."""
251
return iter(self.names())
253
@deprecated_method(zero_eight)
223
raise WeaveRevisionNotPresent(name, self)
255
"""See Weave.versions for the current api."""
256
return self.versions()
259
"""See VersionedFile.versions."""
260
226
return self._names[:]
262
def has_version(self, version_id):
263
"""See VersionedFile.has_version."""
264
return self._name_map.has_key(version_id)
266
__contains__ = has_version
268
def get_delta(self, version_id):
269
"""See VersionedFile.get_delta."""
270
return self.get_deltas([version_id])[version_id]
272
def get_deltas(self, version_ids):
273
"""See VersionedFile.get_deltas."""
274
version_ids = self.get_ancestry(version_ids)
275
for version_id in version_ids:
276
if not self.has_version(version_id):
277
raise RevisionNotPresent(version_id, self)
278
# try extracting all versions; parallel extraction is used
279
nv = self.num_versions()
285
last_parent_lines = {}
287
parent_inclusions = {}
292
# its simplest to generate a full set of prepared variables.
294
name = self._names[i]
295
sha1s[name] = self.get_sha1(name)
296
parents_list = self.get_parents(name)
298
parent = parents_list[0]
299
parents[name] = parent
300
parent_inclusions[name] = inclusions[parent]
303
parent_inclusions[name] = set()
304
# we want to emit start, finish, replacement_length, replacement_lines tuples.
305
diff_hunks[name] = []
306
current_hunks[name] = [0, 0, 0, []] # #start, finish, repl_length, repl_tuples
307
parent_linenums[name] = 0
309
parent_noeols[name] = False
310
last_parent_lines[name] = None
311
new_inc = set([name])
312
for p in self._parents[i]:
313
new_inc.update(inclusions[self._idx_to_name(p)])
314
# debug only, known good so far.
315
#assert set(new_inc) == set(self.get_ancestry(name)), \
316
# 'failed %s != %s' % (set(new_inc), set(self.get_ancestry(name)))
317
inclusions[name] = new_inc
319
nlines = len(self._weave)
321
for lineno, inserted, deletes, line in self._walk_internal():
322
# a line is active in a version if:
323
# insert is in the versions inclusions
325
# deleteset & the versions inclusions is an empty set.
326
# so - if we have a included by mapping - version is included by
327
# children, we get a list of children to examine for deletes affect
328
# ing them, which is less than the entire set of children.
329
for version_id in version_ids:
330
# The active inclusion must be an ancestor,
331
# and no ancestors must have deleted this line,
332
# because we don't support resurrection.
333
parent_inclusion = parent_inclusions[version_id]
334
inclusion = inclusions[version_id]
335
parent_active = inserted in parent_inclusion and not (deletes & parent_inclusion)
336
version_active = inserted in inclusion and not (deletes & inclusion)
337
if not parent_active and not version_active:
338
# unrelated line of ancestry
340
elif parent_active and version_active:
342
parent_linenum = parent_linenums[version_id]
343
if current_hunks[version_id] != [parent_linenum, parent_linenum, 0, []]:
344
diff_hunks[version_id].append(tuple(current_hunks[version_id]))
346
current_hunks[version_id] = [parent_linenum, parent_linenum, 0, []]
347
parent_linenums[version_id] = parent_linenum
350
noeols[version_id] = True
353
elif parent_active and not version_active:
355
current_hunks[version_id][1] += 1
356
parent_linenums[version_id] += 1
357
last_parent_lines[version_id] = line
358
elif not parent_active and version_active:
360
# noeol only occurs at the end of a file because we
361
# diff linewise. We want to show noeol changes as a
362
# empty diff unless the actual eol-less content changed.
365
if last_parent_lines[version_id][-1] != '\n':
366
parent_noeols[version_id] = True
367
except (TypeError, IndexError):
370
if theline[-1] != '\n':
371
noeols[version_id] = True
375
parent_should_go = False
377
if parent_noeols[version_id] == noeols[version_id]:
378
# no noeol toggle, so trust the weaves statement
379
# that this line is changed.
381
if parent_noeols[version_id]:
382
theline = theline + '\n'
383
elif parent_noeols[version_id]:
384
# parent has no eol, we do:
385
# our line is new, report as such..
387
elif noeols[version_id]:
388
# append a eol so that it looks like
390
theline = theline + '\n'
391
if parents[version_id] is not None:
392
#if last_parent_lines[version_id] is not None:
393
parent_should_go = True
394
if last_parent_lines[version_id] != theline:
397
#parent_should_go = False
399
current_hunks[version_id][2] += 1
400
current_hunks[version_id][3].append((inserted, theline))
402
# last hunk last parent line is not eaten
403
current_hunks[version_id][1] -= 1
404
if current_hunks[version_id][1] < 0:
405
current_hunks[version_id][1] = 0
406
# import pdb;pdb.set_trace()
407
# assert current_hunks[version_id][1] >= 0
411
version = self._idx_to_name(i)
412
if current_hunks[version] != [0, 0, 0, []]:
413
diff_hunks[version].append(tuple(current_hunks[version]))
415
for version_id in version_ids:
416
result[version_id] = (
420
diff_hunks[version_id],
424
def get_parents(self, version_id):
425
"""See VersionedFile.get_parent."""
426
return map(self._idx_to_name, self._parents[self._lookup(version_id)])
228
def iter_names(self):
229
"""Yield a list of all names in this weave."""
230
return iter(self._names)
232
def idx_to_name(self, version):
233
return self._names[version]
428
235
def _check_repeated_add(self, name, parents, text, sha1):
429
236
"""Check that a duplicated add is OK.
431
238
If it is, return the (old) index; otherwise raise an exception.
433
idx = self._lookup(name)
240
idx = self.lookup(name)
434
241
if sorted(self._parents[idx]) != sorted(parents) \
435
242
or sha1 != self._sha1s[idx]:
436
raise RevisionAlreadyPresent(name, self._weave_name)
243
raise WeaveRevisionAlreadyPresent(name, self)
439
@deprecated_method(zero_eight)
440
def add_identical(self, old_rev_id, new_rev_id, parents):
441
"""Please use Weave.clone_text now."""
442
return self.clone_text(new_rev_id, old_rev_id, parents)
444
def _add_lines(self, version_id, parents, lines, parent_texts):
445
"""See VersionedFile.add_lines."""
446
return self._add(version_id, lines, map(self._lookup, parents))
448
@deprecated_method(zero_eight)
449
246
def add(self, name, parents, text, sha1=None):
450
"""See VersionedFile.add_lines for the non deprecated api."""
451
return self._add(name, text, map(self._maybe_lookup, parents), sha1)
453
def _add(self, version_id, lines, parents, sha1=None):
454
247
"""Add a single text on top of the weave.
456
249
Returns the index number of the newly added version.
459
252
Symbolic name for this version.
460
253
(Typically the revision-id of the revision that added it.)
463
256
List or set of direct parent version numbers.
466
259
Sequence of lines to be added in the new version.
261
sha -- SHA-1 of the file, if known. This is trusted to be
469
assert isinstance(version_id, basestring)
470
self._check_lines_not_unicode(lines)
471
self._check_lines_are_lines(lines)
473
sha1 = sha_strings(lines)
474
if version_id in self._name_map:
475
return self._check_repeated_add(version_id, parents, lines, sha1)
264
from bzrlib.osutils import sha_strings
266
assert isinstance(name, basestring)
268
sha1 = sha_strings(text)
269
if name in self._name_map:
270
return self._check_repeated_add(name, parents, text, sha1)
272
parents = map(self.maybe_lookup, parents)
477
273
self._check_versions(parents)
478
## self._check_lines(lines)
274
## self._check_lines(text)
479
275
new_version = len(self._parents)
481
278
# if we abort after here the (in-memory) weave will be corrupt because only
482
279
# some fields are updated
483
# XXX: FIXME implement a succeed-or-fail of the rest of this routine.
484
# - Robert Collins 20060226
485
280
self._parents.append(parents[:])
486
281
self._sha1s.append(sha1)
487
self._names.append(version_id)
488
self._name_map[version_id] = new_version
282
self._names.append(name)
283
self._name_map[name] = new_version
625
436
except IndexError:
626
437
raise IndexError("invalid version number %r" % i)
628
def _compatible_parents(self, my_parents, other_parents):
629
"""During join check that other_parents are joinable with my_parents.
631
Joinable is defined as 'is a subset of' - supersets may require
632
regeneration of diffs, but subsets do not.
634
return len(other_parents.difference(my_parents)) == 0
636
def annotate(self, version_id):
637
if isinstance(version_id, int):
638
warn('Weave.annotate(int) is deprecated. Please use version names'
639
' in all circumstances as of 0.8',
644
for origin, lineno, text in self._extract([version_id]):
645
result.append((origin, text))
648
return super(Weave, self).annotate(version_id)
650
def annotate_iter(self, version_id):
651
"""Yield list of (version-id, line) pairs for the specified version.
440
def annotate(self, name_or_index):
441
return list(self.annotate_iter(name_or_index))
444
def annotate_iter(self, name_or_index):
445
"""Yield list of (index-id, line) pairs for the specified version.
653
447
The index indicates when the line originated in the weave."""
654
incls = [self._lookup(version_id)]
448
incls = [self.maybe_lookup(name_or_index)]
655
449
for origin, lineno, text in self._extract(incls):
656
yield self._idx_to_name(origin), text
658
@deprecated_method(zero_eight)
660
"""_walk has become visit, a supported api."""
661
return self._walk_internal()
663
def iter_lines_added_or_present_in_versions(self, version_ids=None):
664
"""See VersionedFile.iter_lines_added_or_present_in_versions()."""
665
if version_ids is None:
666
version_ids = self.versions()
667
version_ids = set(version_ids)
668
for lineno, inserted, deletes, line in self._walk_internal(version_ids):
669
# if inserted not in version_ids then it was inserted before the
670
# versions we care about, but because weaves cannot represent ghosts
671
# properly, we do not filter down to that
672
# if inserted not in version_ids: continue
678
#@deprecated_method(zero_eight)
679
def walk(self, version_ids=None):
680
"""See VersionedFile.walk."""
681
return self._walk_internal(version_ids)
683
def _walk_internal(self, version_ids=None):
684
"""Helper method for weave actions."""
456
(lineno, insert, deletes, text)
457
for each literal line.
854
@deprecated_method(zero_eight)
855
548
def get_iter(self, name_or_index):
856
"""Deprecated, please do not use. Lookups are not not needed.
858
Please use get_lines now.
860
return iter(self.get_lines(self._maybe_lookup(name_or_index)))
862
@deprecated_method(zero_eight)
863
def maybe_lookup(self, name_or_index):
864
"""Deprecated, please do not use. Lookups are not not needed."""
865
return self._maybe_lookup(name_or_index)
867
def _maybe_lookup(self, name_or_index):
868
"""Convert possible symbolic name to index, or pass through indexes.
872
if isinstance(name_or_index, (int, long)):
875
return self._lookup(name_or_index)
877
@deprecated_method(zero_eight)
878
def get(self, version_id):
879
"""Please use either Weave.get_text or Weave.get_lines as desired."""
880
return self.get_lines(version_id)
882
def get_lines(self, version_id):
883
"""See VersionedFile.get_lines()."""
884
int_index = self._maybe_lookup(version_id)
885
result = [line for (origin, lineno, line) in self._extract([int_index])]
886
expected_sha1 = self._sha1s[int_index]
887
measured_sha1 = sha_strings(result)
888
if measured_sha1 != expected_sha1:
889
raise errors.WeaveInvalidChecksum(
890
'file %s, revision %s, expected: %s, measured %s'
891
% (self._weave_name, version_id,
892
expected_sha1, measured_sha1))
895
def get_sha1(self, version_id):
896
"""See VersionedFile.get_sha1()."""
897
return self._sha1s[self._lookup(version_id)]
899
@deprecated_method(zero_eight)
549
"""Yield lines for the specified version."""
550
incls = [self.maybe_lookup(name_or_index)]
551
for origin, lineno, line in self._extract(incls):
555
def get_text(self, name_or_index):
556
return ''.join(self.get_iter(name_or_index))
557
assert isinstance(version, int)
560
def get_lines(self, name_or_index):
561
return list(self.get_iter(name_or_index))
567
def mash_iter(self, included):
568
"""Return composed version of multiple included versions."""
569
included = map(self.maybe_lookup, included)
570
for origin, lineno, text in self._extract(included):
574
def dump(self, to_file):
575
from pprint import pprint
576
print >>to_file, "Weave._weave = ",
577
pprint(self._weave, to_file)
578
print >>to_file, "Weave._parents = ",
579
pprint(self._parents, to_file)
900
583
def numversions(self):
901
"""How many versions are in this weave?
903
Deprecated in favour of num_versions.
905
return self.num_versions()
907
def num_versions(self):
908
"""How many versions are in this weave?"""
909
584
l = len(self._parents)
910
585
assert l == len(self._sha1s)
913
__len__ = num_versions
590
return self.numversions()
915
593
def check(self, progress_bar=None):
916
# TODO evaluate performance hit of using string sets in this routine.
917
# TODO: check no circular inclusions
918
# TODO: create a nested progress bar
919
for version in range(self.num_versions()):
594
# check no circular inclusions
595
for version in range(self.numversions()):
920
596
inclusions = list(self._parents[version])
922
598
inclusions.sort()
924
600
raise WeaveFormatError("invalid included version %d for index %d"
925
601
% (inclusions[-1], version))
927
# try extracting all versions; parallel extraction is used
928
nv = self.num_versions()
933
# For creating the ancestry, IntSet is much faster (3.7s vs 0.17s)
934
# The problem is that set membership is much more expensive
935
name = self._idx_to_name(i)
936
sha1s[name] = sha.new()
938
new_inc = set([name])
939
for p in self._parents[i]:
940
new_inc.update(inclusions[self._idx_to_name(p)])
942
assert set(new_inc) == set(self.get_ancestry(name)), \
943
'failed %s != %s' % (set(new_inc), set(self.get_ancestry(name)))
944
inclusions[name] = new_inc
946
nlines = len(self._weave)
948
update_text = 'checking weave'
950
short_name = os.path.basename(self._weave_name)
951
update_text = 'checking %s' % (short_name,)
952
update_text = update_text[:25]
954
for lineno, insert, deleteset, line in self._walk_internal():
603
# try extracting all versions; this is a bit slow and parallel
604
# extraction could be used
605
nv = self.numversions()
606
for version in range(nv):
956
progress_bar.update(update_text, lineno, nlines)
958
for name, name_inclusions in inclusions.items():
959
# The active inclusion must be an ancestor,
960
# and no ancestors must have deleted this line,
961
# because we don't support resurrection.
962
if (insert in name_inclusions) and not (deleteset & name_inclusions):
963
sha1s[name].update(line)
966
version = self._idx_to_name(i)
967
hd = sha1s[version].hexdigest()
968
expected = self._sha1s[i]
608
progress_bar.update('checking text', version, nv)
610
for l in self.get_iter(version):
613
expected = self._sha1s[version]
969
614
if hd != expected:
970
raise errors.WeaveInvalidChecksum(
971
"mismatched sha1 for version %s: "
972
"got %s, expected %s"
973
% (version, hd, expected))
615
raise WeaveError("mismatched sha1 for version %d; "
616
"got %s, expected %s"
617
% (version, hd, expected))
975
619
# TODO: check insertions are properly nested, that there are
976
620
# no lines outside of insertion blocks, that deletions are
977
621
# properly paired, etc.
979
def _join(self, other, pb, msg, version_ids, ignore_missing):
980
"""Worker routine for join()."""
981
if not other.versions():
624
def _delta(self, included, lines):
625
"""Return changes from basis to new revision.
627
The old text for comparison is the union of included revisions.
629
This is used in inserting a new text.
631
Delta is returned as a sequence of
632
(weave1, weave2, newlines).
634
This indicates that weave1:weave2 of the old weave should be
635
replaced by the sequence of lines in newlines. Note that
636
these line numbers are positions in the total weave and don't
637
correspond to the lines in any extracted version, or even the
638
extracted union of included versions.
640
If line1=line2, this is a pure insert; if newlines=[] this is a
641
pure delete. (Similar to difflib.)
643
raise NotImplementedError()
646
def plan_merge(self, ver_a, ver_b):
647
"""Return pseudo-annotation indicating how the two versions merge.
649
This is computed between versions a and b and their common
652
Weave lines present in none of them are skipped entirely.
654
inc_a = self.inclusions([ver_a])
655
inc_b = self.inclusions([ver_b])
656
inc_c = inc_a & inc_b
658
for lineno, insert, deleteset, line in self._walk():
659
if deleteset & inc_c:
660
# killed in parent; can't be in either a or b
661
# not relevant to our work
662
yield 'killed-base', line
663
elif insert in inc_c:
664
# was inserted in base
665
killed_a = bool(deleteset & inc_a)
666
killed_b = bool(deleteset & inc_b)
667
if killed_a and killed_b:
668
yield 'killed-both', line
670
yield 'killed-a', line
672
yield 'killed-b', line
674
yield 'unchanged', line
675
elif insert in inc_a:
676
if deleteset & inc_a:
677
yield 'ghost-a', line
681
elif insert in inc_b:
682
if deleteset & inc_b:
683
yield 'ghost-b', line
687
# not in either revision
688
yield 'irrelevant', line
690
yield 'unchanged', '' # terminator
694
def weave_merge(self, plan):
699
for state, line in plan:
700
if state == 'unchanged' or state == 'killed-both':
701
# resync and flush queued conflicts changes if any
702
if not lines_a and not lines_b:
704
elif ch_a and not ch_b:
706
for l in lines_a: yield l
707
elif ch_b and not ch_a:
708
for l in lines_b: yield l
709
elif lines_a == lines_b:
710
for l in lines_a: yield l
713
for l in lines_a: yield l
715
for l in lines_b: yield l
722
if state == 'unchanged':
725
elif state == 'killed-a':
728
elif state == 'killed-b':
731
elif state == 'new-a':
734
elif state == 'new-b':
738
assert state in ('irrelevant', 'ghost-a', 'ghost-b', 'killed-base',
743
def join(self, other):
744
"""Integrate versions from other into this weave.
746
The resulting weave contains all the history of both weaves;
747
any version you could retrieve from either self or other can be
748
retrieved from self after this call.
750
It is illegal for the two weaves to contain different values
751
or different parents for any version. See also reweave().
753
if other.numversions() == 0:
982
754
return # nothing to update, easy
985
# versions is never none, InterWeave checks this.
988
755
# two loops so that we do not change ourselves before verifying it
990
757
# work through in index order to make sure we get all dependencies
993
# get the selected versions only that are in other.versions.
994
version_ids = set(other.versions()).intersection(set(version_ids))
995
# pull in the referenced graph.
996
version_ids = other.get_ancestry(version_ids)
997
pending_graph = [(version, other.get_parents(version)) for
998
version in version_ids]
999
for name in topo_sort(pending_graph):
1000
other_idx = other._name_map[name]
1001
# returns True if we have it, False if we need it.
1002
if not self._check_version_consistent(other, other_idx, name):
1003
names_to_join.append((other_idx, name))
1012
for other_idx, name in names_to_join:
1013
# TODO: If all the parents of the other version are already
758
for other_idx, name in enumerate(other._names):
759
if self._check_version_consistent(other, other_idx, name):
761
for other_idx, name in enumerate(other._names):
762
# TODO: If all the parents of the other version are already
1014
763
# present then we can avoid some work by just taking the delta
1015
764
# and adjusting the offsets.
1016
765
new_parents = self._imported_parents(other, other_idx)
766
lines = other.get_lines(other_idx)
1017
767
sha1 = other._sha1s[other_idx]
1022
pb.update(msg, merged, len(names_to_join))
1024
lines = other.get_lines(other_idx)
1025
self._add(name, lines, new_parents, sha1)
1027
mutter("merged = %d, processed = %d, file_id=%s; deltat=%d"%(
1028
merged, processed, self._weave_name, time.time()-time0))
768
self.add(name, new_parents, lines, sha1)
1030
771
def _imported_parents(self, other, other_idx):
1031
772
"""Return list of parents in self corresponding to indexes in other."""
1032
773
new_parents = []
1033
774
for parent_idx in other._parents[other_idx]:
1034
775
parent_name = other._names[parent_idx]
1035
if parent_name not in self._name_map:
776
if parent_name not in self._names:
1036
777
# should not be possible
1037
778
raise WeaveError("missing parent {%s} of {%s} in %r"
1038
779
% (parent_name, other._name_map[other_idx], self))
1070
@deprecated_method(zero_eight)
1071
def reweave(self, other, pb=None, msg=None):
1072
"""reweave has been superseded by plain use of join."""
1073
return self.join(other, pb, msg)
1075
def _reweave(self, other, pb, msg):
1076
"""Reweave self with other - internal helper for join().
1078
:param other: The other weave to merge
1079
:param pb: An optional progress bar, indicating how far done we are
1080
:param msg: An optional message for the progress
1082
new_weave = _reweave(self, other, pb=pb, msg=msg)
1083
self._copy_weave_content(new_weave)
1085
def _copy_weave_content(self, otherweave):
1086
"""adsorb the content from otherweave."""
815
def reweave(self, other):
816
"""Reweave self with other."""
817
new_weave = reweave(self, other)
1087
818
for attr in self.__slots__:
1088
if attr != '_weave_name':
1089
setattr(self, attr, copy(getattr(otherweave, attr)))
1092
class WeaveFile(Weave):
1093
"""A WeaveFile represents a Weave on disk and writes on change."""
1095
WEAVE_SUFFIX = '.weave'
1097
def __init__(self, name, transport, filemode=None, create=False, access_mode='w'):
1098
"""Create a WeaveFile.
1100
:param create: If not True, only open an existing knit.
1102
super(WeaveFile, self).__init__(name, access_mode)
1103
self._transport = transport
1104
self._filemode = filemode
1106
_read_weave_v5(self._transport.get(name + WeaveFile.WEAVE_SUFFIX), self)
1107
except errors.NoSuchFile:
1113
def _add_lines(self, version_id, parents, lines, parent_texts):
1114
"""Add a version and save the weave."""
1115
result = super(WeaveFile, self)._add_lines(version_id, parents, lines,
1120
def _clone_text(self, new_version_id, old_version_id, parents):
1121
"""See VersionedFile.clone_text."""
1122
super(WeaveFile, self)._clone_text(new_version_id, old_version_id, parents)
1125
def copy_to(self, name, transport):
1126
"""See VersionedFile.copy_to()."""
1127
# as we are all in memory always, just serialise to the new place.
1129
write_weave_v5(self, sio)
1131
transport.put(name + WeaveFile.WEAVE_SUFFIX, sio, self._filemode)
1133
def create_empty(self, name, transport, filemode=None):
1134
return WeaveFile(name, transport, filemode, create=True)
1137
"""Save the weave."""
1138
self._check_write_ok()
1140
write_weave_v5(self, sio)
1142
self._transport.put(self._weave_name + WeaveFile.WEAVE_SUFFIX,
1148
"""See VersionedFile.get_suffixes()."""
1149
return [WeaveFile.WEAVE_SUFFIX]
1151
def join(self, other, pb=None, msg=None, version_ids=None,
1152
ignore_missing=False):
1153
"""Join other into self and save."""
1154
super(WeaveFile, self).join(other, pb, msg, version_ids, ignore_missing)
1158
@deprecated_function(zero_eight)
1159
def reweave(wa, wb, pb=None, msg=None):
1160
"""reweaving is deprecation, please just use weave.join()."""
1161
_reweave(wa, wb, pb, msg)
1163
def _reweave(wa, wb, pb=None, msg=None):
819
setattr(self, attr, getattr(new_weave, attr))
1164
823
"""Combine two weaves and return the result.
1166
825
This works even if a revision R has different parents in
1171
830
might be possible but it should only be necessary to do
1172
831
this operation rarely, when a new previously ghost version is
1175
:param pb: An optional progress bar, indicating how far done we are
1176
:param msg: An optional message for the progress
1180
queue_a = range(wa.num_versions())
1181
queue_b = range(wb.num_versions())
836
queue_a = range(wa.numversions())
837
queue_b = range(wb.numversions())
1182
838
# first determine combined parents of all versions
1183
839
# map from version name -> all parent names
1184
840
combined_parents = _reweave_parent_graphs(wa, wb)
1185
841
mutter("combined parents: %r", combined_parents)
1186
842
order = topo_sort(combined_parents.iteritems())
1187
843
mutter("order to reweave: %r", order)
1192
for idx, name in enumerate(order):
1194
pb.update(msg, idx, len(order))
1195
845
if name in wa._name_map:
1196
846
lines = wa.get_lines(name)
1197
847
if name in wb._name_map:
1198
lines_b = wb.get_lines(name)
1199
if lines != lines_b:
1200
mutter('Weaves differ on content. rev_id {%s}', name)
1201
mutter('weaves: %s, %s', wa._weave_name, wb._weave_name)
1203
lines = list(difflib.unified_diff(lines, lines_b,
1204
wa._weave_name, wb._weave_name))
1205
mutter('lines:\n%s', ''.join(lines))
1206
raise errors.WeaveTextDiffers(name, wa, wb)
848
assert lines == wb.get_lines(name)
1208
850
lines = wb.get_lines(name)
1209
wr._add(name, lines, [wr._lookup(i) for i in combined_parents[name]])
851
wr.add(name, combined_parents[name], lines)
1212
855
def _reweave_parent_graphs(wa, wb):
1213
856
"""Return combined parent ancestry for two weaves.
added
removed
bzrlib/weave.py
