74
44
# TODO: Parallel-extract that passes back each line along with a
75
45
# description of which revisions include it. Nice for checking all
81
class WeaveError(Exception):
82
"""Exception in processing weave"""
85
class WeaveFormatError(WeaveError):
86
"""Weave invariant violated"""
46
# shas or calculating stats in parallel.
48
# TODO: Using a single _extract routine and then processing the output
49
# is probably inefficient. It's simple enough that we can afford to
50
# have slight specializations for different ways its used: annotate,
51
# basis for add, get, etc.
53
# TODO: Probably the API should work only in names to hide the integer
54
# indexes from the user.
56
# TODO: Is there any potential performance win by having an add()
57
# variant that is passed a pre-cooked version of the single basis
60
# TODO: Reweave can possibly be made faster by remembering diffs
61
# where the basis and destination are unchanged.
63
# FIXME: Sometimes we will be given a parents list for a revision
64
# that includes some redundant parents (i.e. already a parent of
65
# something in the list.) We should eliminate them. This can
66
# be done fairly efficiently because the sequence numbers constrain
67
# the possible relationships.
69
# FIXME: the conflict markers should be *7* characters
72
from cStringIO import StringIO
78
from bzrlib.lazy_import import lazy_import
79
lazy_import(globals(), """
80
from bzrlib import tsort
85
from bzrlib.errors import (WeaveError, WeaveFormatError, WeaveParentMismatch,
86
RevisionAlreadyPresent,
88
UnavailableRepresentation,
89
WeaveRevisionAlreadyPresent,
90
WeaveRevisionNotPresent,
92
import bzrlib.errors as errors
93
from bzrlib.osutils import dirname, sha_strings, split_lines
94
import bzrlib.patiencediff
95
from bzrlib.revision import NULL_REVISION
96
from bzrlib.symbol_versioning import *
97
from bzrlib.trace import mutter
98
from bzrlib.tsort import topo_sort
99
from bzrlib.versionedfile import (
100
AbsentContentFactory,
105
from bzrlib.weavefile import _read_weave_v5, write_weave_v5
108
class WeaveContentFactory(ContentFactory):
109
"""Content factory for streaming from weaves.
111
:seealso ContentFactory:
114
def __init__(self, version, weave):
115
"""Create a WeaveContentFactory for version from weave."""
116
ContentFactory.__init__(self)
117
self.sha1 = weave.get_sha1s([version])[version]
118
self.key = (version,)
119
parents = weave.get_parent_map([version])[version]
120
self.parents = tuple((parent,) for parent in parents)
121
self.storage_kind = 'fulltext'
124
def get_bytes_as(self, storage_kind):
125
if storage_kind == 'fulltext':
126
return self._weave.get_text(self.key[-1])
128
raise UnavailableRepresentation(self.key, storage_kind, 'fulltext')
131
class Weave(VersionedFile):
90
132
"""weave - versioned text file storage.
92
134
A Weave manages versions of line-based text files, keeping track
160
204
each version; the parent's parents are implied.
163
List of hex SHA-1 of each version, or None if not recorded.
207
List of hex SHA-1 of each version.
210
List of symbolic names for each version. Each should be unique.
213
For each name, the version number.
216
Descriptive name of this weave; typically the filename if known.
166
__slots__ = ['_weave', '_parents', '_sha1s']
220
__slots__ = ['_weave', '_parents', '_sha1s', '_names', '_name_map',
221
'_weave_name', '_matcher', '_allow_reserved']
223
def __init__(self, weave_name=None, access_mode='w', matcher=None,
224
get_scope=None, allow_reserved=False):
227
:param get_scope: A callable that returns an opaque object to be used
228
for detecting when this weave goes out of scope (should stop
229
answering requests or allowing mutation).
231
super(Weave, self).__init__(access_mode)
170
233
self._parents = []
237
self._weave_name = weave_name
239
self._matcher = bzrlib.patiencediff.PatienceSequenceMatcher
241
self._matcher = matcher
242
if get_scope is None:
243
get_scope = lambda:None
244
self._get_scope = get_scope
245
self._scope = get_scope()
246
self._access_mode = access_mode
247
self._allow_reserved = allow_reserved
250
return "Weave(%r)" % self._weave_name
252
def _check_write_ok(self):
253
"""Is the versioned file marked as 'finished' ? Raise if it is."""
254
if self._get_scope() != self._scope:
255
raise errors.OutSideTransaction()
256
if self._access_mode != 'w':
257
raise errors.ReadOnlyObjectDirtiedError(self)
260
"""Return a deep copy of self.
262
The copy can be modified without affecting the original weave."""
264
other._weave = self._weave[:]
265
other._parents = self._parents[:]
266
other._sha1s = self._sha1s[:]
267
other._names = self._names[:]
268
other._name_map = self._name_map.copy()
269
other._weave_name = self._weave_name
174
272
def __eq__(self, other):
175
273
if not isinstance(other, Weave):
177
275
return self._parents == other._parents \
178
and self._weave == other._weave
276
and self._weave == other._weave \
277
and self._sha1s == other._sha1s
181
279
def __ne__(self, other):
182
280
return not self.__eq__(other)
185
def add(self, parents, text):
282
def _idx_to_name(self, version):
283
return self._names[version]
285
def _lookup(self, name):
286
"""Convert symbolic version name to index."""
287
if not self._allow_reserved:
288
self.check_not_reserved_id(name)
290
return self._name_map[name]
292
raise RevisionNotPresent(name, self._weave_name)
295
"""See VersionedFile.versions."""
296
return self._names[:]
298
def has_version(self, version_id):
299
"""See VersionedFile.has_version."""
300
return (version_id in self._name_map)
302
__contains__ = has_version
304
def get_record_stream(self, versions, ordering, include_delta_closure):
305
"""Get a stream of records for versions.
307
:param versions: The versions to include. Each version is a tuple
309
:param ordering: Either 'unordered' or 'topological'. A topologically
310
sorted stream has compression parents strictly before their
312
:param include_delta_closure: If True then the closure across any
313
compression parents will be included (in the opaque data).
314
:return: An iterator of ContentFactory objects, each of which is only
315
valid until the iterator is advanced.
317
versions = [version[-1] for version in versions]
318
if ordering == 'topological':
319
parents = self.get_parent_map(versions)
320
new_versions = topo_sort(parents)
321
new_versions.extend(set(versions).difference(set(parents)))
322
versions = new_versions
323
for version in versions:
325
yield WeaveContentFactory(version, self)
327
yield AbsentContentFactory((version,))
329
def get_parent_map(self, version_ids):
330
"""See VersionedFile.get_parent_map."""
332
for version_id in version_ids:
333
if version_id == NULL_REVISION:
338
map(self._idx_to_name,
339
self._parents[self._lookup(version_id)]))
340
except RevisionNotPresent:
342
result[version_id] = parents
345
def get_parents_with_ghosts(self, version_id):
346
raise NotImplementedError(self.get_parents_with_ghosts)
348
def insert_record_stream(self, stream):
349
"""Insert a record stream into this versioned file.
351
:param stream: A stream of records to insert.
353
:seealso VersionedFile.get_record_stream:
356
for record in stream:
357
# Raise an error when a record is missing.
358
if record.storage_kind == 'absent':
359
raise RevisionNotPresent([record.key[0]], self)
360
# adapt to non-tuple interface
361
parents = [parent[0] for parent in record.parents]
362
if record.storage_kind == 'fulltext':
363
self.add_lines(record.key[0], parents,
364
split_lines(record.get_bytes_as('fulltext')))
366
adapter_key = record.storage_kind, 'fulltext'
368
adapter = adapters[adapter_key]
370
adapter_factory = adapter_registry.get(adapter_key)
371
adapter = adapter_factory(self)
372
adapters[adapter_key] = adapter
373
lines = split_lines(adapter.get_bytes(
374
record, record.get_bytes_as(record.storage_kind)))
376
self.add_lines(record.key[0], parents, lines)
377
except RevisionAlreadyPresent:
380
def _check_repeated_add(self, name, parents, text, sha1):
381
"""Check that a duplicated add is OK.
383
If it is, return the (old) index; otherwise raise an exception.
385
idx = self._lookup(name)
386
if sorted(self._parents[idx]) != sorted(parents) \
387
or sha1 != self._sha1s[idx]:
388
raise RevisionAlreadyPresent(name, self._weave_name)
391
def _add_lines(self, version_id, parents, lines, parent_texts,
392
left_matching_blocks, nostore_sha, random_id, check_content):
393
"""See VersionedFile.add_lines."""
394
idx = self._add(version_id, lines, map(self._lookup, parents),
395
nostore_sha=nostore_sha)
396
return sha_strings(lines), sum(map(len, lines)), idx
398
def _add(self, version_id, lines, parents, sha1=None, nostore_sha=None):
186
399
"""Add a single text on top of the weave.
188
401
Returns the index number of the newly added version.
404
Symbolic name for this version.
405
(Typically the revision-id of the revision that added it.)
191
408
List or set of direct parent version numbers.
194
Sequence of lines to be added in the new version."""
411
Sequence of lines to be added in the new version.
413
:param nostore_sha: See VersionedFile.add_lines.
415
self._check_lines_not_unicode(lines)
416
self._check_lines_are_lines(lines)
418
sha1 = sha_strings(lines)
419
if sha1 == nostore_sha:
420
raise errors.ExistingContent
421
if version_id in self._name_map:
422
return self._check_repeated_add(version_id, parents, lines, sha1)
196
424
self._check_versions(parents)
197
## self._check_lines(text)
425
## self._check_lines(lines)
198
426
new_version = len(self._parents)
206
# if we abort after here the weave will be corrupt
207
self._parents.append(frozenset(parents))
428
# if we abort after here the (in-memory) weave will be corrupt because only
429
# some fields are updated
430
# XXX: FIXME implement a succeed-or-fail of the rest of this routine.
431
# - Robert Collins 20060226
432
self._parents.append(parents[:])
208
433
self._sha1s.append(sha1)
434
self._names.append(version_id)
435
self._name_map[version_id] = new_version
378
592
lineno = 0 # line of weave, 0-based
380
594
for l in self._weave:
381
if isinstance(l, tuple):
595
if l.__class__ == tuple:
599
istack.append(self._names[v])
603
dset.add(self._names[v])
394
raise WeaveFormatError('unexpected instruction %r'
397
assert isinstance(l, basestring)
399
yield lineno, istack[-1], dset, l
404
def _extract(self, versions):
405
"""Yield annotation of lines in included set.
407
Yields a sequence of tuples (origin, lineno, text), where
408
origin is the origin version, lineno the index in the weave,
409
and text the text of the line.
411
The set typically but not necessarily corresponds to a version.
413
included = self.inclusions(versions)
418
lineno = 0 # line of weave, 0-based
424
WFE = WeaveFormatError
426
for l in self._weave:
427
if isinstance(l, tuple):
431
assert v not in istack
446
assert isinstance(l, basestring)
448
isactive = (not dset) and istack and (istack[-1] in included)
450
result.append((istack[-1], lineno, l))
605
dset.remove(self._names[v])
607
raise WeaveFormatError('unexpected instruction %r' % v)
609
yield lineno, istack[-1], frozenset(dset), l
454
raise WFE("unclosed insertion blocks at end of weave",
613
raise WeaveFormatError("unclosed insertion blocks "
614
"at end of weave: %s" % istack)
457
raise WFE("unclosed deletion blocks at end of weave",
464
def get_iter(self, version):
465
"""Yield lines for the specified version."""
466
for origin, lineno, line in self._extract([version]):
470
def get(self, index):
471
return list(self.get_iter(index))
474
def mash_iter(self, included):
475
"""Return composed version of multiple included versions."""
476
for origin, lineno, text in self._extract(included):
480
def dump(self, to_file):
481
from pprint import pprint
482
print >>to_file, "Weave._weave = ",
483
pprint(self._weave, to_file)
484
print >>to_file, "Weave._parents = ",
485
pprint(self._parents, to_file)
489
def numversions(self):
490
l = len(self._parents)
491
assert l == len(self._sha1s)
496
return self.numversions()
499
def check(self, progress_bar=None):
500
# check no circular inclusions
501
for version in range(self.numversions()):
502
inclusions = list(self._parents[version])
505
if inclusions[-1] >= version:
506
raise WeaveFormatError("invalid included version %d for index %d"
507
% (inclusions[-1], version))
509
# try extracting all versions; this is a bit slow and parallel
510
# extraction could be used
512
nv = self.numversions()
513
for version in range(nv):
515
progress_bar.update('checking text', version, nv)
517
for l in self.get_iter(version):
520
expected = self._sha1s[version]
522
raise WeaveError("mismatched sha1 for version %d; "
523
"got %s, expected %s"
524
% (version, hd, expected))
526
# TODO: check insertions are properly nested, that there are
527
# no lines outside of insertion blocks, that deletions are
528
# properly paired, etc.
532
def merge(self, merge_versions):
533
"""Automerge and mark conflicts between versions.
535
This returns a sequence, each entry describing alternatives
536
for a chunk of the file. Each of the alternatives is given as
539
If there is a chunk of the file where there's no diagreement,
540
only one alternative is given.
543
# approach: find the included versions common to all the
545
raise NotImplementedError()
549
def _delta(self, included, lines):
550
"""Return changes from basis to new revision.
552
The old text for comparison is the union of included revisions.
554
This is used in inserting a new text.
556
Delta is returned as a sequence of
557
(weave1, weave2, newlines).
559
This indicates that weave1:weave2 of the old weave should be
560
replaced by the sequence of lines in newlines. Note that
561
these line numbers are positions in the total weave and don't
562
correspond to the lines in any extracted version, or even the
563
extracted union of included versions.
565
If line1=line2, this is a pure insert; if newlines=[] this is a
566
pure delete. (Similar to difflib.)
616
raise WeaveFormatError("unclosed deletion blocks at end of weave: %s"
571
619
def plan_merge(self, ver_a, ver_b):
572
620
"""Return pseudo-annotation indicating how the two versions merge.
612
660
# not in either revision
613
661
yield 'irrelevant', line
615
yield 'unchanged', '' # terminator
619
def weave_merge(self, plan):
624
for state, line in plan:
625
if state == 'unchanged' or state == 'killed-both':
626
# resync and flush queued conflicts changes if any
627
if not lines_a and not lines_b:
629
elif ch_a and not ch_b:
631
for l in lines_a: yield l
632
elif ch_b and not ch_a:
633
for l in lines_b: yield l
634
elif lines_a == lines_b:
635
for l in lines_a: yield l
663
def _extract(self, versions):
664
"""Yield annotation of lines in included set.
666
Yields a sequence of tuples (origin, lineno, text), where
667
origin is the origin version, lineno the index in the weave,
668
and text the text of the line.
670
The set typically but not necessarily corresponds to a version.
673
if not isinstance(i, int):
676
included = self._inclusions(versions)
682
lineno = 0 # line of weave, 0-based
688
WFE = WeaveFormatError
691
# 449 0 4474.6820 2356.5590 bzrlib.weave:556(_extract)
692
# +285282 0 1676.8040 1676.8040 +<isinstance>
693
# 1.6 seconds in 'isinstance'.
694
# changing the first isinstance:
695
# 449 0 2814.2660 1577.1760 bzrlib.weave:556(_extract)
696
# +140414 0 762.8050 762.8050 +<isinstance>
697
# note that the inline time actually dropped (less function calls)
698
# and total processing time was halved.
699
# we're still spending ~1/4 of the method in isinstance though.
700
# so lets hard code the acceptable string classes we expect:
701
# 449 0 1202.9420 786.2930 bzrlib.weave:556(_extract)
702
# +71352 0 377.5560 377.5560 +<method 'append' of 'list'
704
# yay, down to ~1/4 the initial extract time, and our inline time
705
# has shrunk again, with isinstance no longer dominating.
706
# tweaking the stack inclusion test to use a set gives:
707
# 449 0 1122.8030 713.0080 bzrlib.weave:556(_extract)
708
# +71352 0 354.9980 354.9980 +<method 'append' of 'list'
710
# - a 5% win, or possibly just noise. However with large istacks that
711
# 'in' test could dominate, so I'm leaving this change in place -
712
# when its fast enough to consider profiling big datasets we can review.
717
for l in self._weave:
718
if l.__class__ == tuple:
725
iset.remove(istack.pop())
638
for l in lines_a: yield l
640
for l in lines_b: yield l
647
if state == 'unchanged':
650
elif state == 'killed-a':
653
elif state == 'killed-b':
656
elif state == 'new-a':
659
elif state == 'new-b':
663
assert state in ('irrelevant', 'ghost-a', 'ghost-b', 'killed-base',
674
"""Show some text information about the weave."""
675
print '%6s %40s %20s' % ('ver', 'sha1', 'parents')
676
for i in (6, 40, 20):
733
raise AssertionError()
736
isactive = (not dset) and istack and (istack[-1] in included)
738
result.append((istack[-1], lineno, l))
741
raise WeaveFormatError("unclosed insertion blocks "
742
"at end of weave: %s" % istack)
744
raise WeaveFormatError("unclosed deletion blocks at end of weave: %s"
748
def _maybe_lookup(self, name_or_index):
749
"""Convert possible symbolic name to index, or pass through indexes.
753
if isinstance(name_or_index, (int, long)):
756
return self._lookup(name_or_index)
758
def get_lines(self, version_id):
759
"""See VersionedFile.get_lines()."""
760
int_index = self._maybe_lookup(version_id)
761
result = [line for (origin, lineno, line) in self._extract([int_index])]
762
expected_sha1 = self._sha1s[int_index]
763
measured_sha1 = sha_strings(result)
764
if measured_sha1 != expected_sha1:
765
raise errors.WeaveInvalidChecksum(
766
'file %s, revision %s, expected: %s, measured %s'
767
% (self._weave_name, version_id,
768
expected_sha1, measured_sha1))
771
def get_sha1s(self, version_ids):
772
"""See VersionedFile.get_sha1s()."""
774
for v in version_ids:
775
result[v] = self._sha1s[self._lookup(v)]
778
def num_versions(self):
779
"""How many versions are in this weave?"""
780
l = len(self._parents)
783
__len__ = num_versions
785
def check(self, progress_bar=None):
786
# TODO evaluate performance hit of using string sets in this routine.
787
# TODO: check no circular inclusions
788
# TODO: create a nested progress bar
789
for version in range(self.num_versions()):
790
inclusions = list(self._parents[version])
793
if inclusions[-1] >= version:
794
raise WeaveFormatError("invalid included version %d for index %d"
795
% (inclusions[-1], version))
797
# try extracting all versions; parallel extraction is used
798
nv = self.num_versions()
803
# For creating the ancestry, IntSet is much faster (3.7s vs 0.17s)
804
# The problem is that set membership is much more expensive
805
name = self._idx_to_name(i)
806
sha1s[name] = sha.new()
808
new_inc = set([name])
809
for p in self._parents[i]:
810
new_inc.update(inclusions[self._idx_to_name(p)])
812
if set(new_inc) != set(self.get_ancestry(name)):
813
raise AssertionError(
815
% (set(new_inc), set(self.get_ancestry(name))))
816
inclusions[name] = new_inc
818
nlines = len(self._weave)
820
update_text = 'checking weave'
822
short_name = os.path.basename(self._weave_name)
823
update_text = 'checking %s' % (short_name,)
824
update_text = update_text[:25]
826
for lineno, insert, deleteset, line in self._walk_internal():
828
progress_bar.update(update_text, lineno, nlines)
830
for name, name_inclusions in inclusions.items():
831
# The active inclusion must be an ancestor,
832
# and no ancestors must have deleted this line,
833
# because we don't support resurrection.
834
if (insert in name_inclusions) and not (deleteset & name_inclusions):
835
sha1s[name].update(line)
838
version = self._idx_to_name(i)
839
hd = sha1s[version].hexdigest()
840
expected = self._sha1s[i]
842
raise errors.WeaveInvalidChecksum(
843
"mismatched sha1 for version %s: "
844
"got %s, expected %s"
845
% (version, hd, expected))
847
# TODO: check insertions are properly nested, that there are
848
# no lines outside of insertion blocks, that deletions are
849
# properly paired, etc.
851
def _imported_parents(self, other, other_idx):
852
"""Return list of parents in self corresponding to indexes in other."""
854
for parent_idx in other._parents[other_idx]:
855
parent_name = other._names[parent_idx]
856
if parent_name not in self._name_map:
857
# should not be possible
858
raise WeaveError("missing parent {%s} of {%s} in %r"
859
% (parent_name, other._name_map[other_idx], self))
860
new_parents.append(self._name_map[parent_name])
863
def _check_version_consistent(self, other, other_idx, name):
864
"""Check if a version in consistent in this and other.
866
To be consistent it must have:
869
* the same direct parents (by name, not index, and disregarding
872
If present & correct return True;
873
if not present in self return False;
874
if inconsistent raise error."""
875
this_idx = self._name_map.get(name, -1)
877
if self._sha1s[this_idx] != other._sha1s[other_idx]:
878
raise errors.WeaveTextDiffers(name, self, other)
879
self_parents = self._parents[this_idx]
880
other_parents = other._parents[other_idx]
881
n1 = set([self._names[i] for i in self_parents])
882
n2 = set([other._names[i] for i in other_parents])
883
if not self._compatible_parents(n1, n2):
884
raise WeaveParentMismatch("inconsistent parents "
885
"for version {%s}: %s vs %s" % (name, n1, n2))
891
def _reweave(self, other, pb, msg):
892
"""Reweave self with other - internal helper for join().
894
:param other: The other weave to merge
895
:param pb: An optional progress bar, indicating how far done we are
896
:param msg: An optional message for the progress
898
new_weave = _reweave(self, other, pb=pb, msg=msg)
899
self._copy_weave_content(new_weave)
901
def _copy_weave_content(self, otherweave):
902
"""adsorb the content from otherweave."""
903
for attr in self.__slots__:
904
if attr != '_weave_name':
905
setattr(self, attr, copy(getattr(otherweave, attr)))
908
class WeaveFile(Weave):
909
"""A WeaveFile represents a Weave on disk and writes on change."""
911
WEAVE_SUFFIX = '.weave'
913
def __init__(self, name, transport, filemode=None, create=False, access_mode='w', get_scope=None):
914
"""Create a WeaveFile.
916
:param create: If not True, only open an existing knit.
918
super(WeaveFile, self).__init__(name, access_mode, get_scope=get_scope,
919
allow_reserved=False)
920
self._transport = transport
921
self._filemode = filemode
923
_read_weave_v5(self._transport.get(name + WeaveFile.WEAVE_SUFFIX), self)
924
except errors.NoSuchFile:
930
def _add_lines(self, version_id, parents, lines, parent_texts,
931
left_matching_blocks, nostore_sha, random_id, check_content):
932
"""Add a version and save the weave."""
933
self.check_not_reserved_id(version_id)
934
result = super(WeaveFile, self)._add_lines(version_id, parents, lines,
935
parent_texts, left_matching_blocks, nostore_sha, random_id,
940
def copy_to(self, name, transport):
941
"""See VersionedFile.copy_to()."""
942
# as we are all in memory always, just serialise to the new place.
944
write_weave_v5(self, sio)
946
transport.put_file(name + WeaveFile.WEAVE_SUFFIX, sio, self._filemode)
949
"""Save the weave."""
950
self._check_write_ok()
952
write_weave_v5(self, sio)
954
bytes = sio.getvalue()
955
path = self._weave_name + WeaveFile.WEAVE_SUFFIX
957
self._transport.put_bytes(path, bytes, self._filemode)
958
except errors.NoSuchFile:
959
self._transport.mkdir(dirname(path))
960
self._transport.put_bytes(path, bytes, self._filemode)
964
"""See VersionedFile.get_suffixes()."""
965
return [WeaveFile.WEAVE_SUFFIX]
967
def insert_record_stream(self, stream):
968
super(WeaveFile, self).insert_record_stream(stream)
971
@deprecated_method(one_five)
972
def join(self, other, pb=None, msg=None, version_ids=None,
973
ignore_missing=False):
974
"""Join other into self and save."""
975
super(WeaveFile, self).join(other, pb, msg, version_ids, ignore_missing)
979
def _reweave(wa, wb, pb=None, msg=None):
980
"""Combine two weaves and return the result.
982
This works even if a revision R has different parents in
983
wa and wb. In the resulting weave all the parents are given.
985
This is done by just building up a new weave, maintaining ordering
986
of the versions in the two inputs. More efficient approaches
987
might be possible but it should only be necessary to do
988
this operation rarely, when a new previously ghost version is
991
:param pb: An optional progress bar, indicating how far done we are
992
:param msg: An optional message for the progress
996
queue_a = range(wa.num_versions())
997
queue_b = range(wb.num_versions())
998
# first determine combined parents of all versions
999
# map from version name -> all parent names
1000
combined_parents = _reweave_parent_graphs(wa, wb)
1001
mutter("combined parents: %r", combined_parents)
1002
order = tsort.topo_sort(combined_parents.iteritems())
1003
mutter("order to reweave: %r", order)
1008
for idx, name in enumerate(order):
1010
pb.update(msg, idx, len(order))
1011
if name in wa._name_map:
1012
lines = wa.get_lines(name)
1013
if name in wb._name_map:
1014
lines_b = wb.get_lines(name)
1015
if lines != lines_b:
1016
mutter('Weaves differ on content. rev_id {%s}', name)
1017
mutter('weaves: %s, %s', wa._weave_name, wb._weave_name)
1019
lines = list(difflib.unified_diff(lines, lines_b,
1020
wa._weave_name, wb._weave_name))
1021
mutter('lines:\n%s', ''.join(lines))
1022
raise errors.WeaveTextDiffers(name, wa, wb)
1024
lines = wb.get_lines(name)
1025
wr._add(name, lines, [wr._lookup(i) for i in combined_parents[name]])
1028
def _reweave_parent_graphs(wa, wb):
1029
"""Return combined parent ancestry for two weaves.
1031
Returned as a list of (version_name, set(parent_names))"""
1033
for weave in [wa, wb]:
1034
for idx, name in enumerate(weave._names):
1035
p = combined.setdefault(name, set())
1036
p.update(map(weave._idx_to_name, weave._parents[idx]))
1041
"""Show the weave's table-of-contents"""
1042
print '%6s %50s %10s %10s' % ('ver', 'name', 'sha1', 'parents')
1043
for i in (6, 50, 10, 10):
679
for i in range(w.numversions()):
1046
for i in range(w.num_versions()):
680
1047
sha1 = w._sha1s[i]
681
print '%6d %40s %s' % (i, sha1, ' '.join(map(str, w._parents[i])))
685
def weave_stats(weave_file):
686
from bzrlib.progress import ProgressBar
1049
parent_str = ' '.join(map(str, w._parents[i]))
1050
print '%6d %-50.50s %10.10s %s' % (i, name, sha1, parent_str)
1054
def weave_stats(weave_file, pb):
687
1055
from bzrlib.weavefile import read_weave
691
1057
wf = file(weave_file, 'rb')
692
1058
w = read_weave(wf)
693
1059
# FIXME: doesn't work on pipes
added
removed
bzrlib/weave.py
