59
47
def __repr__(self):
60
48
return 'KnitParentsProvider(%r)' % self._knit
62
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
63
50
def get_parents(self, revision_ids):
64
"""See graph._StackedParentsProvider.get_parents"""
65
parent_map = self.get_parent_map(revision_ids)
66
return [parent_map.get(r, None) for r in revision_ids]
68
def get_parent_map(self, keys):
69
"""See graph._StackedParentsProvider.get_parent_map"""
71
for revision_id in keys:
52
for revision_id in revision_ids:
72
53
if revision_id == _mod_revision.NULL_REVISION:
73
parent_map[revision_id] = ()
77
self._knit.get_parents_with_ghosts(revision_id))
57
parents = self._knit.get_parents_with_ghosts(revision_id)
78
58
except errors.RevisionNotPresent:
81
61
if len(parents) == 0:
82
parents = (_mod_revision.NULL_REVISION,)
83
parent_map[revision_id] = parents
62
parents = [_mod_revision.NULL_REVISION]
63
parents_list.append(parents)
87
67
class KnitRepository(MetaDirRepository):
88
68
"""Knit format repository."""
90
# These attributes are inherited from the Repository base class. Setting
91
# them to None ensures that if the constructor is changed to not initialize
92
# them, or a subclass fails to call the constructor, that an error will
93
# occur rather than the system working but generating incorrect data.
94
_commit_builder_class = None
97
def __init__(self, _format, a_bzrdir, control_files, _revision_store,
98
control_store, text_store, _commit_builder_class, _serializer):
99
MetaDirRepository.__init__(self, _format, a_bzrdir, control_files,
100
_revision_store, control_store, text_store)
101
self._commit_builder_class = _commit_builder_class
102
self._serializer = _serializer
103
self._reconcile_fixes_text_parents = True
70
_serializer = xml5.serializer_v5
105
72
def _warn_if_deprecated(self):
106
73
# This class isn't deprecated
109
def _inventory_add_lines(self, inv_vf, revid, parents, lines, check_content):
110
return inv_vf.add_lines_with_ghosts(revid, parents, lines,
111
check_content=check_content)[0]
76
def _inventory_add_lines(self, inv_vf, revid, parents, lines):
77
inv_vf.add_lines_with_ghosts(revid, parents, lines)
114
80
def _all_revision_ids(self):
152
120
if _mod_revision.is_null(revision_id):
122
revision_id = osutils.safe_revision_id(revision_id)
154
123
vf = self._get_revision_vf()
156
125
return [None] + vf.get_ancestry(revision_id, topo_sorted)
157
126
except errors.RevisionNotPresent:
158
127
raise errors.NoSuchRevision(self, revision_id)
160
@symbol_versioning.deprecated_method(symbol_versioning.one_two)
162
def get_data_stream(self, revision_ids):
163
"""See Repository.get_data_stream.
165
Deprecated in 1.2 for get_data_stream_for_search.
167
search_result = self.revision_ids_to_search_result(set(revision_ids))
168
return self.get_data_stream_for_search(search_result)
171
def get_data_stream_for_search(self, search):
172
"""See Repository.get_data_stream_for_search."""
173
item_keys = self.item_keys_introduced_by(search.get_keys())
174
for knit_kind, file_id, versions in item_keys:
176
if knit_kind == 'file':
177
name = ('file', file_id)
178
knit = self.weave_store.get_weave_or_empty(
179
file_id, self.get_transaction())
180
elif knit_kind == 'inventory':
181
knit = self.get_inventory_weave()
182
elif knit_kind == 'revisions':
183
knit = self._revision_store.get_revision_file(
184
self.get_transaction())
185
elif knit_kind == 'signatures':
186
knit = self._revision_store.get_signature_file(
187
self.get_transaction())
189
raise AssertionError('Unknown knit kind %r' % (knit_kind,))
190
yield name, _get_stream_as_bytes(knit, versions)
193
130
def get_revision(self, revision_id):
194
131
"""Return the Revision object for a named revision"""
204
141
operation and will be removed in the future.
205
142
:return: a dictionary of revision_id->revision_parents_list.
207
if 'evil' in debug.debug_flags:
209
"get_revision_graph scales with size of history.")
210
144
# special case NULL_REVISION
211
145
if revision_id == _mod_revision.NULL_REVISION:
147
revision_id = osutils.safe_revision_id(revision_id)
213
148
a_weave = self._get_revision_vf()
214
149
if revision_id is None:
215
150
return a_weave.get_graph()
216
if revision_id not in a_weave:
151
elif revision_id not in a_weave:
217
152
raise errors.NoSuchRevision(self, revision_id)
219
154
# add what can be reached from revision_id
220
155
return a_weave.get_graph([revision_id])
223
@symbol_versioning.deprecated_method(symbol_versioning.one_three)
224
158
def get_revision_graph_with_ghosts(self, revision_ids=None):
225
159
"""Return a graph of the revisions with ghosts marked as applicable.
227
161
:param revision_ids: an iterable of revisions to graph or None for all.
228
162
:return: a Graph object with the graph reachable from revision_ids.
230
if 'evil' in debug.debug_flags:
232
"get_revision_graph_with_ghosts scales with size of history.")
233
164
result = deprecated_graph.Graph()
234
165
vf = self._get_revision_vf()
235
166
versions = set(vf.versions())
294
216
return reconciler
296
218
def revision_parents(self, revision_id):
219
revision_id = osutils.safe_revision_id(revision_id)
297
220
return self._get_revision_vf().get_parents(revision_id)
299
222
def _make_parents_provider(self):
300
223
return _KnitParentsProvider(self._get_revision_vf())
302
def _find_inconsistent_revision_parents(self):
303
"""Find revisions with different parent lists in the revision object
304
and in the index graph.
306
:returns: an iterator yielding tuples of (revison-id, parents-in-index,
307
parents-in-revision).
309
assert self.is_locked()
310
vf = self._get_revision_vf()
311
for index_version in vf.versions():
312
parents_according_to_index = tuple(vf.get_parents_with_ghosts(
314
revision = self.get_revision(index_version)
315
parents_according_to_revision = tuple(revision.parent_ids)
316
if parents_according_to_index != parents_according_to_revision:
317
yield (index_version, parents_according_to_index,
318
parents_according_to_revision)
320
def _check_for_inconsistent_revision_parents(self):
321
inconsistencies = list(self._find_inconsistent_revision_parents())
323
raise errors.BzrCheckError(
324
"Revision knit has inconsistent parents.")
326
def revision_graph_can_have_wrong_parents(self):
327
# The revision.kndx could potentially claim a revision has a different
328
# parent to the revision text.
226
class KnitRepository3(KnitRepository):
228
def __init__(self, _format, a_bzrdir, control_files, _revision_store,
229
control_store, text_store):
230
KnitRepository.__init__(self, _format, a_bzrdir, control_files,
231
_revision_store, control_store, text_store)
232
self._serializer = xml7.serializer_v7
234
def deserialise_inventory(self, revision_id, xml):
235
"""Transform the xml into an inventory object.
237
:param revision_id: The expected revision id of the inventory.
238
:param xml: A serialised inventory.
240
result = self._serializer.read_inventory_from_string(xml)
241
assert result.root.revision is not None
244
def serialise_inventory(self, inv):
245
"""Transform the inventory object into XML text.
247
:param revision_id: The expected revision id of the inventory.
248
:param xml: A serialised inventory.
250
assert inv.revision_id is not None
251
assert inv.root.revision is not None
252
return KnitRepository.serialise_inventory(self, inv)
254
def get_commit_builder(self, branch, parents, config, timestamp=None,
255
timezone=None, committer=None, revprops=None,
257
"""Obtain a CommitBuilder for this repository.
259
:param branch: Branch to commit to.
260
:param parents: Revision ids of the parents of the new revision.
261
:param config: Configuration to use.
262
:param timestamp: Optional timestamp recorded for commit.
263
:param timezone: Optional timezone for timestamp.
264
:param committer: Optional committer to set for commit.
265
:param revprops: Optional dictionary of revision properties.
266
:param revision_id: Optional revision id.
268
revision_id = osutils.safe_revision_id(revision_id)
269
result = RootCommitBuilder(self, parents, config, timestamp, timezone,
270
committer, revprops, revision_id)
271
self.start_write_group()
332
275
class RepositoryFormatKnit(MetaDirRepositoryFormat):
346
# Set this attribute in derived classes to control the repository class
347
# created by open and initialize.
348
repository_class = None
349
# Set this attribute in derived classes to control the
350
# _commit_builder_class that the repository objects will have passed to
352
_commit_builder_class = None
353
# Set this attribute in derived clases to control the _serializer that the
354
# repository objects will have passed to their constructor.
355
_serializer = xml5.serializer_v5
356
# Knit based repositories handle ghosts reasonably well.
357
supports_ghosts = True
358
# External lookups are not supported in this format.
359
supports_external_lookups = False
361
289
def _get_control_store(self, repo_transport, control_files):
362
290
"""Return the control store for this repository."""
363
291
return VersionedFileStore(
443
372
text_store = self._get_text_store(repo_transport, control_files)
444
373
control_store = self._get_control_store(repo_transport, control_files)
445
374
_revision_store = self._get_revision_store(repo_transport, control_files)
446
return self.repository_class(_format=self,
375
return KnitRepository(_format=self,
447
376
a_bzrdir=a_bzrdir,
448
377
control_files=control_files,
449
378
_revision_store=_revision_store,
450
379
control_store=control_store,
451
text_store=text_store,
452
_commit_builder_class=self._commit_builder_class,
453
_serializer=self._serializer)
380
text_store=text_store)
456
383
class RepositoryFormatKnit1(RepositoryFormatKnit):
534
455
"""See RepositoryFormat.get_format_description()."""
535
456
return "Knit repository format 3"
538
class RepositoryFormatKnit4(RepositoryFormatKnit):
539
"""Bzr repository knit format 4.
541
This repository format has everything in format 3, except for
543
- knits for file texts and inventory
544
- hash subdirectory based stores.
545
- knits for revisions and signatures
546
- TextStores for revisions and signatures.
547
- a format marker of its own
548
- an optional 'shared-storage' flag
549
- an optional 'no-working-trees' flag
551
- support for recording full info about the tree root
554
repository_class = KnitRepository
555
_commit_builder_class = RootCommitBuilder
556
rich_root_data = True
557
supports_tree_reference = False
558
_serializer = xml6.serializer_v6
560
def _get_matching_bzrdir(self):
561
return bzrdir.format_registry.make_bzrdir('rich-root')
563
def _ignore_setting_bzrdir(self, format):
566
_matchingbzrdir = property(_get_matching_bzrdir, _ignore_setting_bzrdir)
568
def check_conversion_target(self, target_format):
569
if not target_format.rich_root_data:
570
raise errors.BadConversionTarget(
571
'Does not support rich root data.', target_format)
573
def get_format_string(self):
574
"""See RepositoryFormat.get_format_string()."""
575
return 'Bazaar Knit Repository Format 4 (bzr 1.0)\n'
577
def get_format_description(self):
578
"""See RepositoryFormat.get_format_description()."""
579
return "Knit repository format 4"
582
def _get_stream_as_bytes(knit, required_versions):
583
"""Generate a serialised data stream.
585
The format is a bencoding of a list. The first element of the list is a
586
string of the format signature, then each subsequent element is a list
587
corresponding to a record. Those lists contain:
594
:returns: a bencoded list.
596
knit_stream = knit.get_data_stream(required_versions)
597
format_signature, data_list, callable = knit_stream
599
data.append(format_signature)
600
for version, options, length, parents in data_list:
601
data.append([version, options, parents, callable(length)])
602
return bencode.bencode(data)
458
def open(self, a_bzrdir, _found=False, _override_transport=None):
459
"""See RepositoryFormat.open().
461
:param _override_transport: INTERNAL USE ONLY. Allows opening the
462
repository at a slightly different url
463
than normal. I.e. during 'upgrade'.
466
format = RepositoryFormat.find_format(a_bzrdir)
467
assert format.__class__ == self.__class__
468
if _override_transport is not None:
469
repo_transport = _override_transport
471
repo_transport = a_bzrdir.get_repository_transport(None)
472
control_files = lockable_files.LockableFiles(repo_transport, 'lock',
474
text_store = self._get_text_store(repo_transport, control_files)
475
control_store = self._get_control_store(repo_transport, control_files)
476
_revision_store = self._get_revision_store(repo_transport, control_files)
477
return self.repository_class(_format=self,
479
control_files=control_files,
480
_revision_store=_revision_store,
481
control_store=control_store,
482
text_store=text_store)