32
32
# raising them. If there's more than one exception it'd be good to see them
35
"""Checking of bzr objects.
37
check_refs is a concept used for optimising check. Objects that depend on other
38
objects (e.g. tree on repository) can list the objects they would be requesting
39
so that when the dependent object is checked, matches can be pulled out and
40
evaluated in-line rather than re-reading the same data many times.
41
check_refs are tuples (kind, value). Currently defined kinds are:
43
* 'trees', where value is a revid and the looked up objects are revision trees.
44
* 'lefthand-distance', where value is a revid and the looked up objects are the
45
distance along the lefthand path to NULL for that revid.
46
* 'revision-existence', where value is a revid, and the result is True or False
47
indicating that the revision was found/not found.
50
from __future__ import absolute_import
56
from bzrlib.branch import Branch
57
from bzrlib.controldir import ControlDir
58
from bzrlib.revision import NULL_REVISION
59
from bzrlib.trace import note
60
from bzrlib.workingtree import WorkingTree
61
from bzrlib.i18n import gettext
35
from bzrlib import errors
36
from bzrlib import repository as _mod_repository
37
from bzrlib import revision
38
from bzrlib.errors import BzrCheckError
40
from bzrlib.trace import log_error, note
63
42
class Check(object):
64
43
"""Check a repository"""
66
def __init__(self, repository, check_repo=True):
67
self.repository = repository
69
def report_results(self, verbose):
70
raise NotImplementedError(self.report_results)
73
class VersionedFileCheck(Check):
74
"""Check a versioned file repository"""
76
45
# The Check object interacts with InventoryEntry.check, etc.
78
def __init__(self, repository, check_repo=True):
47
def __init__(self, repository):
79
48
self.repository = repository
49
self.checked_text_cnt = 0
80
50
self.checked_rev_cnt = 0
52
self.repeated_text_cnt = 0
82
53
self.missing_parent_links = {}
83
54
self.missing_inventory_sha_cnt = 0
84
55
self.missing_revision_cnt = 0
85
self.checked_weaves = set()
56
# maps (file-id, version) -> sha1; used by InventoryFile._check
57
self.checked_texts = {}
58
self.checked_weaves = {}
86
59
self.unreferenced_versions = set()
87
60
self.inconsistent_parents = []
88
self.rich_roots = repository.supports_rich_root()
89
self.text_key_references = {}
90
self.check_repo = check_repo
91
self.other_results = []
92
# Plain text lines to include in the report
93
self._report_items = []
94
# Keys we are looking for; may be large and need spilling to disk.
95
# key->(type(revision/inventory/text/signature/map), sha1, first-referer)
96
self.pending_keys = {}
97
# Ancestors map for all of revisions being checked; while large helper
98
# functions we call would create it anyway, so better to have once and
102
def check(self, callback_refs=None, check_repo=True):
103
if callback_refs is None:
105
63
self.repository.lock_read()
106
self.progress = ui.ui_factory.nested_progress_bar()
64
self.progress = bzrlib.ui.ui_factory.nested_progress_bar()
108
self.progress.update(gettext('check'), 0, 4)
110
self.progress.update(gettext('checking revisions'), 0)
111
self.check_revisions()
112
self.progress.update(gettext('checking commit contents'), 1)
113
self.repository._check_inventories(self)
114
self.progress.update(gettext('checking file graphs'), 2)
115
# check_weaves is done after the revision scan so that
116
# revision index is known to be valid.
118
self.progress.update(gettext('checking branches and trees'), 3)
120
repo = self.repository
121
# calculate all refs, and callback the objects requesting them.
123
wanting_items = set()
124
# Current crude version calculates everything and calls
125
# everything at once. Doing a queue and popping as things are
126
# satisfied would be cheaper on memory [but few people have
127
# huge numbers of working trees today. TODO: fix before
131
for ref, wantlist in callback_refs.iteritems():
132
wanting_items.update(wantlist)
135
refs[ref] = repo.revision_tree(value)
136
elif kind == 'lefthand-distance':
138
elif kind == 'revision-existence':
139
existences.add(value)
141
raise AssertionError(
142
'unknown ref kind for ref %s' % ref)
143
node_distances = repo.get_graph().find_lefthand_distances(distances)
144
for key, distance in node_distances.iteritems():
145
refs[('lefthand-distance', key)] = distance
146
if key in existences and distance > 0:
147
refs[('revision-existence', key)] = True
148
existences.remove(key)
149
parent_map = repo.get_graph().get_parent_map(existences)
150
for key in parent_map:
151
refs[('revision-existence', key)] = True
152
existences.remove(key)
153
for key in existences:
154
refs[('revision-existence', key)] = False
155
for item in wanting_items:
156
if isinstance(item, WorkingTree):
158
if isinstance(item, Branch):
159
self.other_results.append(item.check(refs))
66
self.progress.update('retrieving inventory', 0, 2)
67
# do not put in init, as it should be done with progess,
68
# and inside the lock.
69
self.inventory_weave = self.repository.get_inventory_weave()
70
self.progress.update('checking revision graph', 1)
71
self.check_revision_graph()
74
while revno < len(self.planned_revisions):
75
rev_id = self.planned_revisions[revno]
76
self.progress.update('checking revision', revno,
77
len(self.planned_revisions))
79
self.check_one_rev(rev_id)
80
# check_weaves is done after the revision scan so that
81
# revision index is known to be valid.
161
84
self.progress.finished()
162
85
self.repository.unlock()
164
def _check_revisions(self, revisions_iterator):
165
"""Check revision objects by decorating a generator.
167
:param revisions_iterator: An iterator of(revid, Revision-or-None).
168
:return: A generator of the contents of revisions_iterator.
170
self.planned_revisions = set()
171
for revid, revision in revisions_iterator:
172
yield revid, revision
173
self._check_one_rev(revid, revision)
174
# Flatten the revisions we found to guarantee consistent later
176
self.planned_revisions = list(self.planned_revisions)
177
# TODO: extract digital signatures as items to callback on too.
179
def check_revisions(self):
180
"""Scan revisions, checking data directly available as we go."""
181
revision_iterator = self.repository._iter_revisions(None)
182
revision_iterator = self._check_revisions(revision_iterator)
183
# We read the all revisions here:
184
# - doing this allows later code to depend on the revision index.
185
# - we can fill out existence flags at this point
186
# - we can read the revision inventory sha at this point
187
# - we can check properties and serialisers etc.
188
if not self.repository._format.revision_graph_can_have_wrong_parents:
189
# The check against the index isn't needed.
87
def check_revision_graph(self):
88
if not self.repository.revision_graph_can_have_wrong_parents():
89
# This check is not necessary.
190
90
self.revs_with_bad_parents_in_index = None
191
for thing in revision_iterator:
194
bad_revisions = self.repository._find_inconsistent_revision_parents(
196
self.revs_with_bad_parents_in_index = list(bad_revisions)
92
bad_revisions = self.repository._find_inconsistent_revision_parents()
93
self.revs_with_bad_parents_in_index = list(bad_revisions)
95
def plan_revisions(self):
96
repository = self.repository
97
self.planned_revisions = repository.all_revision_ids()
99
inventoried = set(self.inventory_weave.versions())
100
awol = set(self.planned_revisions) - inventoried
102
raise BzrCheckError('Stored revisions missing from inventory'
103
'{%s}' % ','.join([f for f in awol]))
198
105
def report_results(self, verbose):
200
self._report_repo_results(verbose)
201
for result in self.other_results:
202
result.report_results(verbose)
204
def _report_repo_results(self, verbose):
205
note(gettext('checked repository {0} format {1}').format(
206
self.repository.user_url,
207
self.repository._format))
208
note(gettext('%6d revisions'), self.checked_rev_cnt)
209
note(gettext('%6d file-ids'), len(self.checked_weaves))
211
note(gettext('%6d unreferenced text versions'),
212
len(self.unreferenced_versions))
213
if verbose and len(self.unreferenced_versions):
214
for file_id, revision_id in self.unreferenced_versions:
215
note(gettext('unreferenced version: {{{0}}} in {1}').format(revision_id,
106
note('checked repository %s format %s',
107
self.repository.bzrdir.root_transport,
108
self.repository._format)
109
note('%6d revisions', self.checked_rev_cnt)
110
note('%6d file-ids', len(self.checked_weaves))
111
note('%6d unique file texts', self.checked_text_cnt)
112
note('%6d repeated file texts', self.repeated_text_cnt)
113
note('%6d unreferenced text versions',
114
len(self.unreferenced_versions))
217
115
if self.missing_inventory_sha_cnt:
218
note(gettext('%6d revisions are missing inventory_sha1'),
116
note('%6d revisions are missing inventory_sha1',
219
117
self.missing_inventory_sha_cnt)
220
118
if self.missing_revision_cnt:
221
note(gettext('%6d revisions are mentioned but not present'),
119
note('%6d revisions are mentioned but not present',
222
120
self.missing_revision_cnt)
223
121
if len(self.ghosts):
224
note(gettext('%6d ghost revisions'), len(self.ghosts))
122
note('%6d ghost revisions', len(self.ghosts))
226
124
for ghost in self.ghosts:
227
125
note(' %s', ghost)
228
126
if len(self.missing_parent_links):
229
note(gettext('%6d revisions missing parents in ancestry'),
127
note('%6d revisions missing parents in ancestry',
230
128
len(self.missing_parent_links))
232
130
for link, linkers in self.missing_parent_links.items():
233
note(gettext(' %s should be in the ancestry for:'), link)
131
note(' %s should be in the ancestry for:', link)
234
132
for linker in linkers:
235
133
note(' * %s', linker)
135
for file_id, revision_id in self.unreferenced_versions:
136
log_error('unreferenced version: {%s} in %s', revision_id,
236
138
if len(self.inconsistent_parents):
237
note(gettext('%6d inconsistent parents'), len(self.inconsistent_parents))
139
note('%6d inconsistent parents', len(self.inconsistent_parents))
239
141
for info in self.inconsistent_parents:
240
142
revision_id, file_id, found_parents, correct_parents = info
241
note(gettext(' * {0} version {1} has parents {2!r} '
242
'but should have {3!r}').format(
243
file_id, revision_id, found_parents,
143
note(' * %s version %s has parents %r '
145
% (file_id, revision_id, found_parents,
244
146
correct_parents))
245
147
if self.revs_with_bad_parents_in_index:
247
'%6d revisions have incorrect parents in the revision index'),
148
note('%6d revisions have incorrect parents in the revision index',
248
149
len(self.revs_with_bad_parents_in_index))
250
151
for item in self.revs_with_bad_parents_in_index:
251
152
revision_id, index_parents, actual_parents = item
253
' {0} has wrong parents in index: '
254
'{1!r} should be {2!r}').format(
255
revision_id, index_parents, actual_parents))
256
for item in self._report_items:
259
def _check_one_rev(self, rev_id, rev):
260
"""Cross-check one revision.
262
:param rev_id: A revision id to check.
263
:param rev: A revision or None to indicate a missing revision.
154
' %s has wrong parents in index: '
156
revision_id, index_parents, actual_parents)
158
def check_one_rev(self, rev_id):
159
"""Check one revision.
161
rev_id - the one to check
163
rev = self.repository.get_revision(rev_id)
265
165
if rev.revision_id != rev_id:
266
self._report_items.append(gettext(
267
'Mismatched internal revid {{{0}}} and index revid {{{1}}}').format(
268
rev.revision_id, rev_id))
269
rev_id = rev.revision_id
270
# Check this revision tree etc, and count as seen when we encounter a
272
self.planned_revisions.add(rev_id)
274
self.ghosts.discard(rev_id)
275
# Count all parents as ghosts if we haven't seen them yet.
166
raise BzrCheckError('wrong internal revision id in revision {%s}'
276
169
for parent in rev.parent_ids:
277
170
if not parent in self.planned_revisions:
278
self.ghosts.add(parent)
280
self.ancestors[rev_id] = tuple(rev.parent_ids) or (NULL_REVISION,)
281
self.add_pending_item(rev_id, ('inventories', rev_id), 'inventory',
171
missing_links = self.missing_parent_links.get(parent, [])
172
missing_links.append(rev_id)
173
self.missing_parent_links[parent] = missing_links
174
# list based so somewhat slow,
175
# TODO have a planned_revisions list and set.
176
if self.repository.has_revision(parent):
177
missing_ancestry = self.repository.get_ancestry(parent)
178
for missing in missing_ancestry:
179
if (missing is not None
180
and missing not in self.planned_revisions):
181
self.planned_revisions.append(missing)
183
self.ghosts.append(rev_id)
185
if rev.inventory_sha1:
186
inv_sha1 = self.repository.get_inventory_sha1(rev_id)
187
if inv_sha1 != rev.inventory_sha1:
188
raise BzrCheckError('Inventory sha1 hash doesn\'t match'
189
' value in revision {%s}' % rev_id)
190
self._check_revision_tree(rev_id)
283
191
self.checked_rev_cnt += 1
285
def add_pending_item(self, referer, key, kind, sha1):
286
"""Add a reference to a sha1 to be cross checked against a key.
288
:param referer: The referer that expects key to have sha1.
289
:param key: A storage key e.g. ('texts', 'foo@bar-20040504-1234')
290
:param kind: revision/inventory/text/map/signature
291
:param sha1: A hex sha1 or None if no sha1 is known.
293
existing = self.pending_keys.get(key)
295
if sha1 != existing[1]:
296
self._report_items.append(gettext('Multiple expected sha1s for {0}. {{{1}}}'
297
' expects {{{2}}}, {{{3}}} expects {{{4}}}').format(
298
key, referer, sha1, existing[1], existing[0]))
300
self.pending_keys[key] = (kind, sha1, referer)
302
193
def check_weaves(self):
303
194
"""Check all the weaves we can get our hands on.
306
storebar = ui.ui_factory.nested_progress_bar()
308
self._check_weaves(storebar)
312
def _check_weaves(self, storebar):
313
storebar.update('text-index', 0, 2)
314
if self.repository._format.fast_deltas:
315
# We haven't considered every fileid instance so far.
316
weave_checker = self.repository._get_versioned_file_checker(
317
ancestors=self.ancestors)
319
weave_checker = self.repository._get_versioned_file_checker(
320
text_key_references=self.text_key_references,
321
ancestors=self.ancestors)
322
storebar.update('file-graph', 1)
323
result = weave_checker.check_file_version_parents(
324
self.repository.texts)
325
self.checked_weaves = weave_checker.file_ids
326
bad_parents, unused_versions = result
327
bad_parents = bad_parents.items()
328
for text_key, (stored_parents, correct_parents) in bad_parents:
329
# XXX not ready for id join/split operations.
330
weave_id = text_key[0]
331
revision_id = text_key[-1]
332
weave_parents = tuple([parent[-1] for parent in stored_parents])
333
correct_parents = tuple([parent[-1] for parent in correct_parents])
334
self.inconsistent_parents.append(
335
(revision_id, weave_id, weave_parents, correct_parents))
336
self.unreferenced_versions.update(unused_versions)
338
def _add_entry_to_text_key_references(self, inv, entry):
339
if not self.rich_roots and entry.name == '':
341
key = (entry.file_id, entry.revision)
342
self.text_key_references.setdefault(key, False)
343
if entry.revision == inv.revision_id:
344
self.text_key_references[key] = True
347
def scan_branch(branch, needed_refs, to_unlock):
348
"""Scan a branch for refs.
350
:param branch: The branch to schedule for checking.
351
:param needed_refs: Refs we are accumulating.
352
:param to_unlock: The unlock list accumulating.
198
if self.repository.weave_store.listable():
199
weave_ids = list(self.repository.weave_store)
200
n_weaves = len(weave_ids) + 1
201
self.progress.update('checking versionedfile', 0, n_weaves)
202
self.inventory_weave.check(progress_bar=self.progress)
203
files_in_revisions = {}
204
revisions_of_files = {}
205
weave_checker = self.repository.get_versioned_file_checker()
206
for i, weave_id in enumerate(weave_ids):
207
self.progress.update('checking versionedfile', i, n_weaves)
208
w = self.repository.weave_store.get_weave(weave_id,
209
self.repository.get_transaction())
210
# No progress here, because it looks ugly.
212
result = weave_checker.check_file_version_parents(w, weave_id,
213
self.planned_revisions)
214
bad_parents, unused_versions = result
215
bad_parents = bad_parents.items()
216
for revision_id, (weave_parents, correct_parents) in bad_parents:
217
self.inconsistent_parents.append(
218
(revision_id, weave_id, weave_parents, correct_parents))
219
for revision_id in unused_versions:
220
self.unreferenced_versions.add((weave_id, revision_id))
221
self.checked_weaves[weave_id] = True
223
def _check_revision_tree(self, rev_id):
224
tree = self.repository.revision_tree(rev_id)
228
if file_id in seen_ids:
229
raise BzrCheckError('duplicated file_id {%s} '
230
'in inventory for revision {%s}'
232
seen_ids[file_id] = True
235
ie.check(self, rev_id, inv, tree)
237
for path, ie in inv.iter_entries():
238
if path in seen_names:
239
raise BzrCheckError('duplicated path %s '
240
'in inventory for revision {%s}'
242
seen_names[path] = True
245
def check(branch, verbose):
246
"""Run consistency checks on a branch.
248
Results are reported through logging.
250
:raise BzrCheckError: if there's a consistency error.
354
note(gettext("Checking branch at '%s'.") % (branch.base,))
355
252
branch.lock_read()
356
to_unlock.append(branch)
357
branch_refs = branch._get_check_refs()
358
for ref in branch_refs:
359
reflist = needed_refs.setdefault(ref, [])
360
reflist.append(branch)
363
def scan_tree(base_tree, tree, needed_refs, to_unlock):
364
"""Scan a tree for refs.
366
:param base_tree: The original tree check opened, used to detect duplicate
368
:param tree: The tree to schedule for checking.
369
:param needed_refs: Refs we are accumulating.
370
:param to_unlock: The unlock list accumulating.
372
if base_tree is not None and tree.basedir == base_tree.basedir:
374
note(gettext("Checking working tree at '%s'.") % (tree.basedir,))
376
to_unlock.append(tree)
377
tree_refs = tree._get_check_refs()
378
for ref in tree_refs:
379
reflist = needed_refs.setdefault(ref, [])
383
def check_dwim(path, verbose, do_branch=False, do_repo=False, do_tree=False):
384
"""Check multiple objects.
386
If errors occur they are accumulated and reported as far as possible, and
387
an exception raised at the end of the process.
390
base_tree, branch, repo, relpath = \
391
ControlDir.open_containing_tree_branch_or_repository(path)
392
except errors.NotBranchError:
393
base_tree = branch = repo = None
398
if base_tree is not None:
399
# If the tree is a lightweight checkout we won't see it in
400
# repo.find_branches - add now.
402
scan_tree(None, base_tree, needed_refs, to_unlock)
403
branch = base_tree.branch
404
if branch is not None:
407
# The branch is in a shared repository
408
repo = branch.repository
411
to_unlock.append(repo)
412
branches = repo.find_branches(using=True)
414
if do_branch or do_tree:
415
for branch in branches:
418
tree = branch.bzrdir.open_workingtree()
420
except (errors.NotLocalUrl, errors.NoWorkingTree):
423
scan_tree(base_tree, tree, needed_refs, to_unlock)
425
scan_branch(branch, needed_refs, to_unlock)
426
if do_branch and not branches:
427
note(gettext("No branch found at specified location."))
428
if do_tree and base_tree is None and not saw_tree:
429
note(gettext("No working tree found at specified location."))
430
if do_repo or do_branch or do_tree:
432
note(gettext("Checking repository at '%s'.")
434
result = repo.check(None, callback_refs=needed_refs,
436
result.report_results(verbose)
439
note(gettext("No working tree found at specified location."))
441
note(gettext("No branch found at specified location."))
443
note(gettext("No repository found at specified location."))
254
branch_result = branch.check()
255
repo_result = branch.repository.check([branch.last_revision()])
445
for thing in to_unlock:
258
branch_result.report_results(verbose)
259
repo_result.report_results(verbose)
added
removed
bzrlib/check.py
