1
# Copyright (C) 2005, 2006 Canonical Ltd
1
# Copyright (C) 2005, 2006, 2007, 2008 Canonical Ltd
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
5
5
# the Free Software Foundation; either version 2 of the License, or
6
6
# (at your option) any later version.
8
8
# This program is distributed in the hope that it will be useful,
9
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
11
# GNU General Public License for more details.
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
from binascii import hexlify
18
from copy import deepcopy
19
from cStringIO import StringIO
17
from bzrlib.lazy_import import lazy_import
18
lazy_import(globals(), """
22
from unittest import TestSuite
24
import bzrlib.bzrdir as bzrdir
38
revision as _mod_revision,
44
from bzrlib.bundle import serializer
45
from bzrlib.revisiontree import RevisionTree
46
from bzrlib.store.versioned import VersionedFileStore
47
from bzrlib.testament import Testament
50
from bzrlib import registry
25
51
from bzrlib.decorators import needs_read_lock, needs_write_lock
26
import bzrlib.errors as errors
27
from bzrlib.errors import InvalidRevisionId
28
import bzrlib.gpg as gpg
29
from bzrlib.graph import Graph
30
52
from bzrlib.inter import InterObject
31
from bzrlib.inventory import Inventory
32
from bzrlib.knit import KnitVersionedFile, KnitPlainFactory
33
from bzrlib.lockable_files import LockableFiles, TransportLock
34
from bzrlib.lockdir import LockDir
35
from bzrlib.osutils import (safe_unicode, rand_bytes, compact_date,
37
from bzrlib.revision import NULL_REVISION, Revision
38
from bzrlib.store.versioned import VersionedFileStore, WeaveStore
39
from bzrlib.store.text import TextStore
40
from bzrlib.symbol_versioning import *
41
from bzrlib.trace import mutter, note
42
from bzrlib.tree import RevisionTree
43
from bzrlib.tsort import topo_sort
44
from bzrlib.testament import Testament
45
from bzrlib.tree import EmptyTree
47
from bzrlib.weave import WeaveFile
53
from bzrlib.inventory import Inventory, InventoryDirectory, ROOT_ID
54
from bzrlib.symbol_versioning import (
60
from bzrlib.trace import (
61
log_exception_quietly, note, mutter, mutter_callsite, warning)
64
# Old formats display a warning, but only once
65
_deprecation_warning_done = False
68
class CommitBuilder(object):
69
"""Provides an interface to build up a commit.
71
This allows describing a tree to be committed without needing to
72
know the internals of the format of the repository.
75
# all clients should supply tree roots.
76
record_root_entry = True
77
# the default CommitBuilder does not manage trees whose root is versioned.
78
_versioned_root = False
80
def __init__(self, repository, parents, config, timestamp=None,
81
timezone=None, committer=None, revprops=None,
83
"""Initiate a CommitBuilder.
85
:param repository: Repository to commit to.
86
:param parents: Revision ids of the parents of the new revision.
87
:param config: Configuration to use.
88
:param timestamp: Optional timestamp recorded for commit.
89
:param timezone: Optional timezone for timestamp.
90
:param committer: Optional committer to set for commit.
91
:param revprops: Optional dictionary of revision properties.
92
:param revision_id: Optional revision id.
97
self._committer = self._config.username()
99
self._committer = committer
101
self.new_inventory = Inventory(None)
102
self._new_revision_id = revision_id
103
self.parents = parents
104
self.repository = repository
107
if revprops is not None:
108
self._validate_revprops(revprops)
109
self._revprops.update(revprops)
111
if timestamp is None:
112
timestamp = time.time()
113
# Restrict resolution to 1ms
114
self._timestamp = round(timestamp, 3)
117
self._timezone = osutils.local_time_offset()
119
self._timezone = int(timezone)
121
self._generate_revision_if_needed()
122
self.__heads = graph.HeadsCache(repository.get_graph()).heads
123
self._basis_delta = []
124
# API compatibility, older code that used CommitBuilder did not call
125
# .record_delete(), which means the delta that is computed would not be
126
# valid. Callers that will call record_delete() should call
127
# .will_record_deletes() to indicate that.
128
self._recording_deletes = False
130
def _validate_unicode_text(self, text, context):
131
"""Verify things like commit messages don't have bogus characters."""
133
raise ValueError('Invalid value for %s: %r' % (context, text))
135
def _validate_revprops(self, revprops):
136
for key, value in revprops.iteritems():
137
# We know that the XML serializers do not round trip '\r'
138
# correctly, so refuse to accept them
139
if not isinstance(value, basestring):
140
raise ValueError('revision property (%s) is not a valid'
141
' (unicode) string: %r' % (key, value))
142
self._validate_unicode_text(value,
143
'revision property (%s)' % (key,))
145
def commit(self, message):
146
"""Make the actual commit.
148
:return: The revision id of the recorded revision.
150
self._validate_unicode_text(message, 'commit message')
151
rev = _mod_revision.Revision(
152
timestamp=self._timestamp,
153
timezone=self._timezone,
154
committer=self._committer,
156
inventory_sha1=self.inv_sha1,
157
revision_id=self._new_revision_id,
158
properties=self._revprops)
159
rev.parent_ids = self.parents
160
self.repository.add_revision(self._new_revision_id, rev,
161
self.new_inventory, self._config)
162
self.repository.commit_write_group()
163
return self._new_revision_id
166
"""Abort the commit that is being built.
168
self.repository.abort_write_group()
170
def revision_tree(self):
171
"""Return the tree that was just committed.
173
After calling commit() this can be called to get a RevisionTree
174
representing the newly committed tree. This is preferred to
175
calling Repository.revision_tree() because that may require
176
deserializing the inventory, while we already have a copy in
179
return RevisionTree(self.repository, self.new_inventory,
180
self._new_revision_id)
182
def finish_inventory(self):
183
"""Tell the builder that the inventory is finished."""
184
if self.new_inventory.root is None:
185
raise AssertionError('Root entry should be supplied to'
186
' record_entry_contents, as of bzr 0.10.')
187
self.new_inventory.add(InventoryDirectory(ROOT_ID, '', None))
188
self.new_inventory.revision_id = self._new_revision_id
189
self.inv_sha1 = self.repository.add_inventory(
190
self._new_revision_id,
195
def _gen_revision_id(self):
196
"""Return new revision-id."""
197
return generate_ids.gen_revision_id(self._config.username(),
200
def _generate_revision_if_needed(self):
201
"""Create a revision id if None was supplied.
203
If the repository can not support user-specified revision ids
204
they should override this function and raise CannotSetRevisionId
205
if _new_revision_id is not None.
207
:raises: CannotSetRevisionId
209
if self._new_revision_id is None:
210
self._new_revision_id = self._gen_revision_id()
211
self.random_revid = True
213
self.random_revid = False
215
def _heads(self, file_id, revision_ids):
216
"""Calculate the graph heads for revision_ids in the graph of file_id.
218
This can use either a per-file graph or a global revision graph as we
219
have an identity relationship between the two graphs.
221
return self.__heads(revision_ids)
223
def _check_root(self, ie, parent_invs, tree):
224
"""Helper for record_entry_contents.
226
:param ie: An entry being added.
227
:param parent_invs: The inventories of the parent revisions of the
229
:param tree: The tree that is being committed.
231
# In this revision format, root entries have no knit or weave When
232
# serializing out to disk and back in root.revision is always
234
ie.revision = self._new_revision_id
236
def _get_delta(self, ie, basis_inv, path):
237
"""Get a delta against the basis inventory for ie."""
238
if ie.file_id not in basis_inv:
240
result = (None, path, ie.file_id, ie)
241
self._basis_delta.append(result)
243
elif ie != basis_inv[ie.file_id]:
245
# TODO: avoid tis id2path call.
246
result = (basis_inv.id2path(ie.file_id), path, ie.file_id, ie)
247
self._basis_delta.append(result)
253
def get_basis_delta(self):
254
"""Return the complete inventory delta versus the basis inventory.
256
This has been built up with the calls to record_delete and
257
record_entry_contents. The client must have already called
258
will_record_deletes() to indicate that they will be generating a
261
:return: An inventory delta, suitable for use with apply_delta, or
262
Repository.add_inventory_by_delta, etc.
264
if not self._recording_deletes:
265
raise AssertionError("recording deletes not activated.")
266
return self._basis_delta
268
def record_delete(self, path, file_id):
269
"""Record that a delete occured against a basis tree.
271
This is an optional API - when used it adds items to the basis_delta
272
being accumulated by the commit builder. It cannot be called unless the
273
method will_record_deletes() has been called to inform the builder that
274
a delta is being supplied.
276
:param path: The path of the thing deleted.
277
:param file_id: The file id that was deleted.
279
if not self._recording_deletes:
280
raise AssertionError("recording deletes not activated.")
281
delta = (path, None, file_id, None)
282
self._basis_delta.append(delta)
285
def will_record_deletes(self):
286
"""Tell the commit builder that deletes are being notified.
288
This enables the accumulation of an inventory delta; for the resulting
289
commit to be valid, deletes against the basis MUST be recorded via
290
builder.record_delete().
292
self._recording_deletes = True
294
def record_entry_contents(self, ie, parent_invs, path, tree,
296
"""Record the content of ie from tree into the commit if needed.
298
Side effect: sets ie.revision when unchanged
300
:param ie: An inventory entry present in the commit.
301
:param parent_invs: The inventories of the parent revisions of the
303
:param path: The path the entry is at in the tree.
304
:param tree: The tree which contains this entry and should be used to
306
:param content_summary: Summary data from the tree about the paths
307
content - stat, length, exec, sha/link target. This is only
308
accessed when the entry has a revision of None - that is when it is
309
a candidate to commit.
310
:return: A tuple (change_delta, version_recorded, fs_hash).
311
change_delta is an inventory_delta change for this entry against
312
the basis tree of the commit, or None if no change occured against
314
version_recorded is True if a new version of the entry has been
315
recorded. For instance, committing a merge where a file was only
316
changed on the other side will return (delta, False).
317
fs_hash is either None, or the hash details for the path (currently
318
a tuple of the contents sha1 and the statvalue returned by
319
tree.get_file_with_stat()).
321
if self.new_inventory.root is None:
322
if ie.parent_id is not None:
323
raise errors.RootMissing()
324
self._check_root(ie, parent_invs, tree)
325
if ie.revision is None:
326
kind = content_summary[0]
328
# ie is carried over from a prior commit
330
# XXX: repository specific check for nested tree support goes here - if
331
# the repo doesn't want nested trees we skip it ?
332
if (kind == 'tree-reference' and
333
not self.repository._format.supports_tree_reference):
334
# mismatch between commit builder logic and repository:
335
# this needs the entry creation pushed down into the builder.
336
raise NotImplementedError('Missing repository subtree support.')
337
self.new_inventory.add(ie)
339
# TODO: slow, take it out of the inner loop.
341
basis_inv = parent_invs[0]
343
basis_inv = Inventory(root_id=None)
345
# ie.revision is always None if the InventoryEntry is considered
346
# for committing. We may record the previous parents revision if the
347
# content is actually unchanged against a sole head.
348
if ie.revision is not None:
349
if not self._versioned_root and path == '':
350
# repositories that do not version the root set the root's
351
# revision to the new commit even when no change occurs (more
352
# specifically, they do not record a revision on the root; and
353
# the rev id is assigned to the root during deserialisation -
354
# this masks when a change may have occurred against the basis.
355
# To match this we always issue a delta, because the revision
356
# of the root will always be changing.
357
if ie.file_id in basis_inv:
358
delta = (basis_inv.id2path(ie.file_id), path,
362
delta = (None, path, ie.file_id, ie)
363
self._basis_delta.append(delta)
364
return delta, False, None
366
# we don't need to commit this, because the caller already
367
# determined that an existing revision of this file is
368
# appropriate. If its not being considered for committing then
369
# it and all its parents to the root must be unaltered so
370
# no-change against the basis.
371
if ie.revision == self._new_revision_id:
372
raise AssertionError("Impossible situation, a skipped "
373
"inventory entry (%r) claims to be modified in this "
374
"commit (%r).", (ie, self._new_revision_id))
375
return None, False, None
376
# XXX: Friction: parent_candidates should return a list not a dict
377
# so that we don't have to walk the inventories again.
378
parent_candiate_entries = ie.parent_candidates(parent_invs)
379
head_set = self._heads(ie.file_id, parent_candiate_entries.keys())
381
for inv in parent_invs:
382
if ie.file_id in inv:
383
old_rev = inv[ie.file_id].revision
384
if old_rev in head_set:
385
heads.append(inv[ie.file_id].revision)
386
head_set.remove(inv[ie.file_id].revision)
389
# now we check to see if we need to write a new record to the
391
# We write a new entry unless there is one head to the ancestors, and
392
# the kind-derived content is unchanged.
394
# Cheapest check first: no ancestors, or more the one head in the
395
# ancestors, we write a new node.
399
# There is a single head, look it up for comparison
400
parent_entry = parent_candiate_entries[heads[0]]
401
# if the non-content specific data has changed, we'll be writing a
403
if (parent_entry.parent_id != ie.parent_id or
404
parent_entry.name != ie.name):
406
# now we need to do content specific checks:
408
# if the kind changed the content obviously has
409
if kind != parent_entry.kind:
411
# Stat cache fingerprint feedback for the caller - None as we usually
412
# don't generate one.
415
if content_summary[2] is None:
416
raise ValueError("Files must not have executable = None")
418
if (# if the file length changed we have to store:
419
parent_entry.text_size != content_summary[1] or
420
# if the exec bit has changed we have to store:
421
parent_entry.executable != content_summary[2]):
423
elif parent_entry.text_sha1 == content_summary[3]:
424
# all meta and content is unchanged (using a hash cache
425
# hit to check the sha)
426
ie.revision = parent_entry.revision
427
ie.text_size = parent_entry.text_size
428
ie.text_sha1 = parent_entry.text_sha1
429
ie.executable = parent_entry.executable
430
return self._get_delta(ie, basis_inv, path), False, None
432
# Either there is only a hash change(no hash cache entry,
433
# or same size content change), or there is no change on
435
# Provide the parent's hash to the store layer, so that the
436
# content is unchanged we will not store a new node.
437
nostore_sha = parent_entry.text_sha1
439
# We want to record a new node regardless of the presence or
440
# absence of a content change in the file.
442
ie.executable = content_summary[2]
443
file_obj, stat_value = tree.get_file_with_stat(ie.file_id, path)
445
lines = file_obj.readlines()
449
ie.text_sha1, ie.text_size = self._add_text_to_weave(
450
ie.file_id, lines, heads, nostore_sha)
451
# Let the caller know we generated a stat fingerprint.
452
fingerprint = (ie.text_sha1, stat_value)
453
except errors.ExistingContent:
454
# Turns out that the file content was unchanged, and we were
455
# only going to store a new node if it was changed. Carry over
457
ie.revision = parent_entry.revision
458
ie.text_size = parent_entry.text_size
459
ie.text_sha1 = parent_entry.text_sha1
460
ie.executable = parent_entry.executable
461
return self._get_delta(ie, basis_inv, path), False, None
462
elif kind == 'directory':
464
# all data is meta here, nothing specific to directory, so
466
ie.revision = parent_entry.revision
467
return self._get_delta(ie, basis_inv, path), False, None
469
self._add_text_to_weave(ie.file_id, lines, heads, None)
470
elif kind == 'symlink':
471
current_link_target = content_summary[3]
473
# symlink target is not generic metadata, check if it has
475
if current_link_target != parent_entry.symlink_target:
478
# unchanged, carry over.
479
ie.revision = parent_entry.revision
480
ie.symlink_target = parent_entry.symlink_target
481
return self._get_delta(ie, basis_inv, path), False, None
482
ie.symlink_target = current_link_target
484
self._add_text_to_weave(ie.file_id, lines, heads, None)
485
elif kind == 'tree-reference':
487
if content_summary[3] != parent_entry.reference_revision:
490
# unchanged, carry over.
491
ie.reference_revision = parent_entry.reference_revision
492
ie.revision = parent_entry.revision
493
return self._get_delta(ie, basis_inv, path), False, None
494
ie.reference_revision = content_summary[3]
496
self._add_text_to_weave(ie.file_id, lines, heads, None)
498
raise NotImplementedError('unknown kind')
499
ie.revision = self._new_revision_id
500
return self._get_delta(ie, basis_inv, path), True, fingerprint
502
def _add_text_to_weave(self, file_id, new_lines, parents, nostore_sha):
503
# Note: as we read the content directly from the tree, we know its not
504
# been turned into unicode or badly split - but a broken tree
505
# implementation could give us bad output from readlines() so this is
506
# not a guarantee of safety. What would be better is always checking
507
# the content during test suite execution. RBC 20070912
508
parent_keys = tuple((file_id, parent) for parent in parents)
509
return self.repository.texts.add_lines(
510
(file_id, self._new_revision_id), parent_keys, new_lines,
511
nostore_sha=nostore_sha, random_id=self.random_revid,
512
check_content=False)[0:2]
515
class RootCommitBuilder(CommitBuilder):
516
"""This commitbuilder actually records the root id"""
518
# the root entry gets versioned properly by this builder.
519
_versioned_root = True
521
def _check_root(self, ie, parent_invs, tree):
522
"""Helper for record_entry_contents.
524
:param ie: An entry being added.
525
:param parent_invs: The inventories of the parent revisions of the
527
:param tree: The tree that is being committed.
531
######################################################################
51
534
class Repository(object):
52
535
"""Repository holding history for one or more branches.
55
538
revisions and file history. It's normally accessed only by the Branch,
56
539
which views a particular line of development through that history.
58
The Repository builds on top of Stores and a Transport, which respectively
59
describe the disk data format and the way of accessing the (possibly
541
The Repository builds on top of some byte storage facilies (the revisions,
542
signatures, inventories and texts attributes) and a Transport, which
543
respectively provide byte storage and a means to access the (possibly
546
The byte storage facilities are addressed via tuples, which we refer to
547
as 'keys' throughout the code base. Revision_keys, inventory_keys and
548
signature_keys are all 1-tuples: (revision_id,). text_keys are two-tuples:
549
(file_id, revision_id). We use this interface because it allows low
550
friction with the underlying code that implements disk indices, network
551
encoding and other parts of bzrlib.
553
:ivar revisions: A bzrlib.versionedfile.VersionedFiles instance containing
554
the serialised revisions for the repository. This can be used to obtain
555
revision graph information or to access raw serialised revisions.
556
The result of trying to insert data into the repository via this store
557
is undefined: it should be considered read-only except for implementors
559
:ivar signatures: A bzrlib.versionedfile.VersionedFiles instance containing
560
the serialised signatures for the repository. This can be used to
561
obtain access to raw serialised signatures. The result of trying to
562
insert data into the repository via this store is undefined: it should
563
be considered read-only except for implementors of repositories.
564
:ivar inventories: A bzrlib.versionedfile.VersionedFiles instance containing
565
the serialised inventories for the repository. This can be used to
566
obtain unserialised inventories. The result of trying to insert data
567
into the repository via this store is undefined: it should be
568
considered read-only except for implementors of repositories.
569
:ivar texts: A bzrlib.versionedfile.VersionedFiles instance containing the
570
texts of files and directories for the repository. This can be used to
571
obtain file texts or file graphs. Note that Repository.iter_file_bytes
572
is usually a better interface for accessing file texts.
573
The result of trying to insert data into the repository via this store
574
is undefined: it should be considered read-only except for implementors
576
:ivar _transport: Transport for file access to repository, typically
577
pointing to .bzr/repository.
64
def add_inventory(self, revid, inv, parents):
65
"""Add the inventory inv to the repository as revid.
67
:param parents: The revision ids of the parents that revid
580
# What class to use for a CommitBuilder. Often its simpler to change this
581
# in a Repository class subclass rather than to override
582
# get_commit_builder.
583
_commit_builder_class = CommitBuilder
584
# The search regex used by xml based repositories to determine what things
585
# where changed in a single commit.
586
_file_ids_altered_regex = lazy_regex.lazy_compile(
587
r'file_id="(?P<file_id>[^"]+)"'
588
r'.* revision="(?P<revision_id>[^"]+)"'
591
def abort_write_group(self, suppress_errors=False):
592
"""Commit the contents accrued within the current write group.
594
:param suppress_errors: if true, abort_write_group will catch and log
595
unexpected errors that happen during the abort, rather than
596
allowing them to propagate. Defaults to False.
598
:seealso: start_write_group.
600
if self._write_group is not self.get_transaction():
601
# has an unlock or relock occured ?
602
raise errors.BzrError('mismatched lock context and write group.')
604
self._abort_write_group()
605
except Exception, exc:
606
self._write_group = None
607
if not suppress_errors:
609
mutter('abort_write_group failed')
610
log_exception_quietly()
611
note('bzr: ERROR (ignored): %s', exc)
612
self._write_group = None
614
def _abort_write_group(self):
615
"""Template method for per-repository write group cleanup.
617
This is called during abort before the write group is considered to be
618
finished and should cleanup any internal state accrued during the write
619
group. There is no requirement that data handed to the repository be
620
*not* made available - this is not a rollback - but neither should any
621
attempt be made to ensure that data added is fully commited. Abort is
622
invoked when an error has occured so futher disk or network operations
623
may not be possible or may error and if possible should not be
627
def add_fallback_repository(self, repository):
628
"""Add a repository to use for looking up data not held locally.
630
:param repository: A repository.
632
if not self._format.supports_external_lookups:
633
raise errors.UnstackableRepositoryFormat(self._format, self.base)
634
self._check_fallback_repository(repository)
635
self._fallback_repositories.append(repository)
636
self.texts.add_fallback_versioned_files(repository.texts)
637
self.inventories.add_fallback_versioned_files(repository.inventories)
638
self.revisions.add_fallback_versioned_files(repository.revisions)
639
self.signatures.add_fallback_versioned_files(repository.signatures)
640
self._fetch_order = 'topological'
642
def _check_fallback_repository(self, repository):
643
"""Check that this repository can fallback to repository safely.
645
Raise an error if not.
647
:param repository: A repository to fallback to.
649
return InterRepository._assert_same_model(self, repository)
651
def add_inventory(self, revision_id, inv, parents):
652
"""Add the inventory inv to the repository as revision_id.
654
:param parents: The revision ids of the parents that revision_id
68
655
is known to have and are in the repository already.
70
returns the sha1 of the serialized inventory.
72
assert inv.revision_id is None or inv.revision_id == revid, \
73
"Mismatch between inventory revision" \
74
" id and insertion revid (%r, %r)" % (inv.revision_id, revid)
75
inv_text = bzrlib.xml5.serializer_v5.write_inventory_to_string(inv)
76
inv_sha1 = bzrlib.osutils.sha_string(inv_text)
77
inv_vf = self.control_weaves.get_weave('inventory',
78
self.get_transaction())
79
self._inventory_add_lines(inv_vf, revid, parents, bzrlib.osutils.split_lines(inv_text))
82
def _inventory_add_lines(self, inv_vf, revid, parents, lines):
84
for parent in parents:
86
final_parents.append(parent)
88
inv_vf.add_lines(revid, final_parents, lines)
91
def add_revision(self, rev_id, rev, inv=None, config=None):
92
"""Add rev to the revision store as rev_id.
94
:param rev_id: the revision id to use.
657
:returns: The validator(which is a sha1 digest, though what is sha'd is
658
repository format specific) of the serialized inventory.
660
if not self.is_in_write_group():
661
raise AssertionError("%r not in write group" % (self,))
662
_mod_revision.check_not_reserved_id(revision_id)
663
if not (inv.revision_id is None or inv.revision_id == revision_id):
664
raise AssertionError(
665
"Mismatch between inventory revision"
666
" id and insertion revid (%r, %r)"
667
% (inv.revision_id, revision_id))
669
raise AssertionError()
670
inv_lines = self._serialise_inventory_to_lines(inv)
671
return self._inventory_add_lines(revision_id, parents,
672
inv_lines, check_content=False)
674
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
676
"""Add a new inventory expressed as a delta against another revision.
678
:param basis_revision_id: The inventory id the delta was created
679
against. (This does not have to be a direct parent.)
680
:param delta: The inventory delta (see Inventory.apply_delta for
682
:param new_revision_id: The revision id that the inventory is being
684
:param parents: The revision ids of the parents that revision_id is
685
known to have and are in the repository already. These are supplied
686
for repositories that depend on the inventory graph for revision
687
graph access, as well as for those that pun ancestry with delta
690
:returns: (validator, new_inv)
691
The validator(which is a sha1 digest, though what is sha'd is
692
repository format specific) of the serialized inventory, and the
695
if not self.is_in_write_group():
696
raise AssertionError("%r not in write group" % (self,))
697
_mod_revision.check_not_reserved_id(new_revision_id)
698
basis_tree = self.revision_tree(basis_revision_id)
699
basis_tree.lock_read()
701
# Note that this mutates the inventory of basis_tree, which not all
702
# inventory implementations may support: A better idiom would be to
703
# return a new inventory, but as there is no revision tree cache in
704
# repository this is safe for now - RBC 20081013
705
basis_inv = basis_tree.inventory
706
basis_inv.apply_delta(delta)
707
basis_inv.revision_id = new_revision_id
708
return (self.add_inventory(new_revision_id, basis_inv, parents),
713
def _inventory_add_lines(self, revision_id, parents, lines,
715
"""Store lines in inv_vf and return the sha1 of the inventory."""
716
parents = [(parent,) for parent in parents]
717
return self.inventories.add_lines((revision_id,), parents, lines,
718
check_content=check_content)[0]
720
def add_revision(self, revision_id, rev, inv=None, config=None):
721
"""Add rev to the revision store as revision_id.
723
:param revision_id: the revision id to use.
95
724
:param rev: The revision object.
96
725
:param inv: The inventory for the revision. if None, it will be looked
97
726
up in the inventory storer
182
817
# the following are part of the public API for Repository:
183
818
self.bzrdir = a_bzrdir
184
819
self.control_files = control_files
185
self._revision_store = _revision_store
186
self.text_store = text_store
187
# backwards compatibility
188
self.weave_store = text_store
820
self._transport = control_files._transport
821
self.base = self._transport.base
823
self._reconcile_does_inventory_gc = True
824
self._reconcile_fixes_text_parents = False
825
self._reconcile_backsup_inventory = True
189
826
# not right yet - should be more semantically clear ?
191
self.control_store = control_store
192
self.control_weaves = control_store
193
828
# TODO: make sure to construct the right store classes, etc, depending
194
829
# on whether escaping is required.
830
self._warn_if_deprecated()
831
self._write_group = None
832
# Additional places to query for data.
833
self._fallback_repositories = []
834
# What order should fetch operations request streams in?
835
# The default is unordered as that is the cheapest for an origin to
837
self._fetch_order = 'unordered'
838
# Does this repository use deltas that can be fetched as-deltas ?
839
# (E.g. knits, where the knit deltas can be transplanted intact.
840
# We default to False, which will ensure that enough data to get
841
# a full text out of any fetch stream will be grabbed.
842
self._fetch_uses_deltas = False
843
# Should fetch trigger a reconcile after the fetch? Only needed for
844
# some repository formats that can suffer internal inconsistencies.
845
self._fetch_reconcile = False
846
# An InventoryEntry cache, used during deserialization
847
self._inventory_entry_cache = fifo_cache.FIFOCache(10*1024)
196
849
def __repr__(self):
197
return '%s(%r)' % (self.__class__.__name__,
198
self.bzrdir.transport.base)
850
return '%s(%r)' % (self.__class__.__name__,
853
def has_same_location(self, other):
854
"""Returns a boolean indicating if this repository is at the same
855
location as another repository.
857
This might return False even when two repository objects are accessing
858
the same physical repository via different URLs.
860
if self.__class__ is not other.__class__:
862
return (self._transport.base == other._transport.base)
864
def is_in_write_group(self):
865
"""Return True if there is an open write group.
867
:seealso: start_write_group.
869
return self._write_group is not None
200
871
def is_locked(self):
201
872
return self.control_files.is_locked()
203
def lock_write(self):
204
self.control_files.lock_write()
874
def is_write_locked(self):
875
"""Return True if this object is write locked."""
876
return self.is_locked() and self.control_files._lock_mode == 'w'
878
def lock_write(self, token=None):
879
"""Lock this repository for writing.
881
This causes caching within the repository obejct to start accumlating
882
data during reads, and allows a 'write_group' to be obtained. Write
883
groups must be used for actual data insertion.
885
:param token: if this is already locked, then lock_write will fail
886
unless the token matches the existing lock.
887
:returns: a token if this instance supports tokens, otherwise None.
888
:raises TokenLockingNotSupported: when a token is given but this
889
instance doesn't support using token locks.
890
:raises MismatchedToken: if the specified token doesn't match the token
891
of the existing lock.
892
:seealso: start_write_group.
894
A token should be passed in if you know that you have locked the object
895
some other way, and need to synchronise this object's state with that
898
XXX: this docstring is duplicated in many places, e.g. lockable_files.py
900
result = self.control_files.lock_write(token=token)
901
for repo in self._fallback_repositories:
902
# Writes don't affect fallback repos
206
907
def lock_read(self):
207
908
self.control_files.lock_read()
909
for repo in self._fallback_repositories:
209
913
def get_physical_lock_status(self):
210
914
return self.control_files.get_physical_lock_status()
213
def missing_revision_ids(self, other, revision_id=None):
214
"""Return the revision ids that other has that this does not.
216
These are returned in topological order.
218
revision_id: only return revision ids included by revision_id.
220
return InterRepository.get(other, self).missing_revision_ids(revision_id)
916
def leave_lock_in_place(self):
917
"""Tell this repository not to release the physical lock when this
920
If lock_write doesn't return a token, then this method is not supported.
922
self.control_files.leave_in_place()
924
def dont_leave_lock_in_place(self):
925
"""Tell this repository to release the physical lock when this
926
object is unlocked, even if it didn't originally acquire it.
928
If lock_write doesn't return a token, then this method is not supported.
930
self.control_files.dont_leave_in_place()
933
def gather_stats(self, revid=None, committers=None):
934
"""Gather statistics from a revision id.
936
:param revid: The revision id to gather statistics from, if None, then
937
no revision specific statistics are gathered.
938
:param committers: Optional parameter controlling whether to grab
939
a count of committers from the revision specific statistics.
940
:return: A dictionary of statistics. Currently this contains:
941
committers: The number of committers if requested.
942
firstrev: A tuple with timestamp, timezone for the penultimate left
943
most ancestor of revid, if revid is not the NULL_REVISION.
944
latestrev: A tuple with timestamp, timezone for revid, if revid is
945
not the NULL_REVISION.
946
revisions: The total revision count in the repository.
947
size: An estimate disk size of the repository in bytes.
950
if revid and committers:
951
result['committers'] = 0
952
if revid and revid != _mod_revision.NULL_REVISION:
954
all_committers = set()
955
revisions = self.get_ancestry(revid)
956
# pop the leading None
958
first_revision = None
960
# ignore the revisions in the middle - just grab first and last
961
revisions = revisions[0], revisions[-1]
962
for revision in self.get_revisions(revisions):
963
if not first_revision:
964
first_revision = revision
966
all_committers.add(revision.committer)
967
last_revision = revision
969
result['committers'] = len(all_committers)
970
result['firstrev'] = (first_revision.timestamp,
971
first_revision.timezone)
972
result['latestrev'] = (last_revision.timestamp,
973
last_revision.timezone)
975
# now gather global repository information
976
# XXX: This is available for many repos regardless of listability.
977
if self.bzrdir.root_transport.listable():
978
# XXX: do we want to __define len__() ?
979
# Maybe the versionedfiles object should provide a different
980
# method to get the number of keys.
981
result['revisions'] = len(self.revisions.keys())
985
def find_branches(self, using=False):
986
"""Find branches underneath this repository.
988
This will include branches inside other branches.
990
:param using: If True, list only branches using this repository.
992
if using and not self.is_shared():
994
return [self.bzrdir.open_branch()]
995
except errors.NotBranchError:
997
class Evaluator(object):
1000
self.first_call = True
1002
def __call__(self, bzrdir):
1003
# On the first call, the parameter is always the bzrdir
1004
# containing the current repo.
1005
if not self.first_call:
1007
repository = bzrdir.open_repository()
1008
except errors.NoRepositoryPresent:
1011
return False, (None, repository)
1012
self.first_call = False
1014
value = (bzrdir.open_branch(), None)
1015
except errors.NotBranchError:
1016
value = (None, None)
1020
for branch, repository in bzrdir.BzrDir.find_bzrdirs(
1021
self.bzrdir.root_transport, evaluate=Evaluator()):
1022
if branch is not None:
1023
branches.append(branch)
1024
if not using and repository is not None:
1025
branches.extend(repository.find_branches())
1029
def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
1030
"""Return the revision ids that other has that this does not.
1032
These are returned in topological order.
1034
revision_id: only return revision ids included by revision_id.
1036
return InterRepository.get(other, self).search_missing_revision_ids(
1037
revision_id, find_ghosts)
1039
@deprecated_method(one_two)
1041
def missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
1042
"""Return the revision ids that other has that this does not.
1044
These are returned in topological order.
1046
revision_id: only return revision ids included by revision_id.
1048
keys = self.search_missing_revision_ids(
1049
other, revision_id, find_ghosts).get_keys()
1052
parents = other.get_graph().get_parent_map(keys)
1055
return tsort.topo_sort(parents)
259
1134
:param revprops: Optional dictionary of revision properties.
260
1135
:param revision_id: Optional revision id.
262
return CommitBuilder(self, parents, config, timestamp, timezone,
263
committer, revprops, revision_id)
1137
result = self._commit_builder_class(self, parents, config,
1138
timestamp, timezone, committer, revprops, revision_id)
1139
self.start_write_group()
265
1142
def unlock(self):
1143
if (self.control_files._lock_count == 1 and
1144
self.control_files._lock_mode == 'w'):
1145
if self._write_group is not None:
1146
self.abort_write_group()
1147
self.control_files.unlock()
1148
raise errors.BzrError(
1149
'Must end write groups before releasing write locks.')
266
1150
self.control_files.unlock()
1151
if self.control_files._lock_count == 0:
1152
self._inventory_entry_cache.clear()
1153
for repo in self._fallback_repositories:
268
1156
@needs_read_lock
269
def clone(self, a_bzrdir, revision_id=None, basis=None):
1157
def clone(self, a_bzrdir, revision_id=None):
270
1158
"""Clone this repository into a_bzrdir using the current format.
272
1160
Currently no check is made that the format of this repository and
273
1161
the bzrdir format are compatible. FIXME RBC 20060201.
1163
:return: The newly created destination repository.
1165
# TODO: deprecate after 0.16; cloning this with all its settings is
1166
# probably not very useful -- mbp 20070423
1167
dest_repo = self._create_sprouting_repo(a_bzrdir, shared=self.is_shared())
1168
self.copy_content_into(dest_repo, revision_id)
1171
def start_write_group(self):
1172
"""Start a write group in the repository.
1174
Write groups are used by repositories which do not have a 1:1 mapping
1175
between file ids and backend store to manage the insertion of data from
1176
both fetch and commit operations.
1178
A write lock is required around the start_write_group/commit_write_group
1179
for the support of lock-requiring repository formats.
1181
One can only insert data into a repository inside a write group.
1185
if not self.is_write_locked():
1186
raise errors.NotWriteLocked(self)
1187
if self._write_group:
1188
raise errors.BzrError('already in a write group')
1189
self._start_write_group()
1190
# so we can detect unlock/relock - the write group is now entered.
1191
self._write_group = self.get_transaction()
1193
def _start_write_group(self):
1194
"""Template method for per-repository write group startup.
1196
This is called before the write group is considered to be
1201
def sprout(self, to_bzrdir, revision_id=None):
1202
"""Create a descendent repository for new development.
1204
Unlike clone, this does not copy the settings of the repository.
1206
dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
1207
dest_repo.fetch(self, revision_id=revision_id)
1210
def _create_sprouting_repo(self, a_bzrdir, shared):
275
1211
if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
276
1212
# use target default format.
277
result = a_bzrdir.create_repository()
278
# FIXME RBC 20060209 split out the repository type to avoid this check ?
279
elif isinstance(a_bzrdir._format,
280
(bzrlib.bzrdir.BzrDirFormat4,
281
bzrlib.bzrdir.BzrDirFormat5,
282
bzrlib.bzrdir.BzrDirFormat6)):
283
result = a_bzrdir.open_repository()
1213
dest_repo = a_bzrdir.create_repository()
285
result = self._format.initialize(a_bzrdir, shared=self.is_shared())
286
self.copy_content_into(result, revision_id, basis)
1215
# Most control formats need the repository to be specifically
1216
# created, but on some old all-in-one formats it's not needed
1218
dest_repo = self._format.initialize(a_bzrdir, shared=shared)
1219
except errors.UninitializableFormat:
1220
dest_repo = a_bzrdir.open_repository()
289
1223
@needs_read_lock
290
1224
def has_revision(self, revision_id):
291
1225
"""True if this repository has a copy of the revision."""
292
return self._revision_store.has_revision_id(revision_id,
293
self.get_transaction())
1226
return revision_id in self.has_revisions((revision_id,))
1229
def has_revisions(self, revision_ids):
1230
"""Probe to find out the presence of multiple revisions.
1232
:param revision_ids: An iterable of revision_ids.
1233
:return: A set of the revision_ids that were present.
1235
parent_map = self.revisions.get_parent_map(
1236
[(rev_id,) for rev_id in revision_ids])
1238
if _mod_revision.NULL_REVISION in revision_ids:
1239
result.add(_mod_revision.NULL_REVISION)
1240
result.update([key[0] for key in parent_map])
1244
def get_revision(self, revision_id):
1245
"""Return the Revision object for a named revision."""
1246
return self.get_revisions([revision_id])[0]
295
1248
@needs_read_lock
296
1249
def get_revision_reconcile(self, revision_id):
301
1254
be used by reconcile, or reconcile-alike commands that are correcting
302
1255
or testing the revision graph.
304
if not revision_id or not isinstance(revision_id, basestring):
305
raise InvalidRevisionId(revision_id=revision_id, branch=self)
306
return self._revision_store.get_revision(revision_id,
307
self.get_transaction())
1257
return self._get_revisions([revision_id])[0]
1260
def get_revisions(self, revision_ids):
1261
"""Get many revisions at once."""
1262
return self._get_revisions(revision_ids)
1265
def _get_revisions(self, revision_ids):
1266
"""Core work logic to get many revisions without sanity checks."""
1267
for rev_id in revision_ids:
1268
if not rev_id or not isinstance(rev_id, basestring):
1269
raise errors.InvalidRevisionId(revision_id=rev_id, branch=self)
1270
keys = [(key,) for key in revision_ids]
1271
stream = self.revisions.get_record_stream(keys, 'unordered', True)
1273
for record in stream:
1274
if record.storage_kind == 'absent':
1275
raise errors.NoSuchRevision(self, record.key[0])
1276
text = record.get_bytes_as('fulltext')
1277
rev = self._serializer.read_revision_from_string(text)
1278
revs[record.key[0]] = rev
1279
return [revs[revid] for revid in revision_ids]
309
1281
@needs_read_lock
310
1282
def get_revision_xml(self, revision_id):
311
rev = self.get_revision(revision_id)
1283
# TODO: jam 20070210 This shouldn't be necessary since get_revision
1284
# would have already do it.
1285
# TODO: jam 20070210 Just use _serializer.write_revision_to_string()
1286
rev = self.get_revision(revision_id)
1287
rev_tmp = cStringIO.StringIO()
313
1288
# the current serializer..
314
self._revision_store._serializer.write_revision(rev, rev_tmp)
1289
self._serializer.write_revision(rev, rev_tmp)
316
1291
return rev_tmp.getvalue()
1293
def get_deltas_for_revisions(self, revisions):
1294
"""Produce a generator of revision deltas.
1296
Note that the input is a sequence of REVISIONS, not revision_ids.
1297
Trees will be held in memory until the generator exits.
1298
Each delta is relative to the revision's lefthand predecessor.
1300
required_trees = set()
1301
for revision in revisions:
1302
required_trees.add(revision.revision_id)
1303
required_trees.update(revision.parent_ids[:1])
1304
trees = dict((t.get_revision_id(), t) for
1305
t in self.revision_trees(required_trees))
1306
for revision in revisions:
1307
if not revision.parent_ids:
1308
old_tree = self.revision_tree(_mod_revision.NULL_REVISION)
1310
old_tree = trees[revision.parent_ids[0]]
1311
yield trees[revision.revision_id].changes_from(old_tree)
318
1313
@needs_read_lock
319
def get_revision(self, revision_id):
320
"""Return the Revision object for a named revision"""
321
r = self.get_revision_reconcile(revision_id)
322
# weave corruption can lead to absent revision markers that should be
324
# the following test is reasonably cheap (it needs a single weave read)
325
# and the weave is cached in read transactions. In write transactions
326
# it is not cached but typically we only read a small number of
327
# revisions. For knits when they are introduced we will probably want
328
# to ensure that caching write transactions are in use.
329
inv = self.get_inventory_weave()
330
self._check_revision_parents(r, inv)
1314
def get_revision_delta(self, revision_id):
1315
"""Return the delta for one revision.
333
def _check_revision_parents(self, revision, inventory):
334
"""Private to Repository and Fetch.
336
This checks the parentage of revision in an inventory weave for
337
consistency and is only applicable to inventory-weave-for-ancestry
338
using repository formats & fetchers.
1317
The delta is relative to the left-hand predecessor of the
340
weave_parents = inventory.get_parents(revision.revision_id)
341
weave_names = inventory.versions()
342
for parent_id in revision.parent_ids:
343
if parent_id in weave_names:
344
# this parent must not be a ghost.
345
if not parent_id in weave_parents:
347
raise errors.CorruptRepository(self)
1320
r = self.get_revision(revision_id)
1321
return list(self.get_deltas_for_revisions([r]))[0]
349
1323
@needs_write_lock
350
1324
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
351
1325
signature = gpg_strategy.sign(plaintext)
352
self._revision_store.add_revision_signature_text(revision_id,
354
self.get_transaction())
356
def fileids_altered_by_revision_ids(self, revision_ids):
357
"""Find the file ids and versions affected by revisions.
359
:param revisions: an iterable containing revision ids.
360
:return: a dictionary mapping altered file-ids to an iterable of
1326
self.add_signature_text(revision_id, signature)
1329
def add_signature_text(self, revision_id, signature):
1330
self.signatures.add_lines((revision_id,), (),
1331
osutils.split_lines(signature))
1333
def find_text_key_references(self):
1334
"""Find the text key references within the repository.
1336
:return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
361
1337
revision_ids. Each altered file-ids has the exact revision_ids that
362
1338
altered it listed explicitly.
364
assert isinstance(self._format, (RepositoryFormat5,
367
RepositoryFormatKnit1)), \
368
("fileids_altered_by_revision_ids only supported for branches "
369
"which store inventory as unnested xml, not on %r" % self)
370
selected_revision_ids = set(revision_ids)
371
w = self.get_inventory_weave()
1339
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1340
to whether they were referred to by the inventory of the
1341
revision_id that they contain. The inventory texts from all present
1342
revision ids are assessed to generate this report.
1344
revision_keys = self.revisions.keys()
1345
w = self.inventories
1346
pb = ui.ui_factory.nested_progress_bar()
1348
return self._find_text_key_references_from_xml_inventory_lines(
1349
w.iter_lines_added_or_present_in_keys(revision_keys, pb=pb))
1353
def _find_text_key_references_from_xml_inventory_lines(self,
1355
"""Core routine for extracting references to texts from inventories.
1357
This performs the translation of xml lines to revision ids.
1359
:param line_iterator: An iterator of lines, origin_version_id
1360
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1361
to whether they were referred to by the inventory of the
1362
revision_id that they contain. Note that if that revision_id was
1363
not part of the line_iterator's output then False will be given -
1364
even though it may actually refer to that key.
1366
if not self._serializer.support_altered_by_hack:
1367
raise AssertionError(
1368
"_find_text_key_references_from_xml_inventory_lines only "
1369
"supported for branches which store inventory as unnested xml"
1370
", not on %r" % self)
374
1373
# this code needs to read every new line in every inventory for the
379
1378
# revisions. We don't need to see all lines in the inventory because
380
1379
# only those added in an inventory in rev X can contain a revision=X
382
for line in w.iter_lines_added_or_present_in_versions(selected_revision_ids):
383
start = line.find('file_id="')+9
384
if start < 9: continue
385
end = line.find('"', start)
387
file_id = _unescape_xml(line[start:end])
389
start = line.find('revision="')+10
390
if start < 10: continue
391
end = line.find('"', start)
393
revision_id = _unescape_xml(line[start:end])
394
if revision_id in selected_revision_ids:
395
result.setdefault(file_id, set()).add(revision_id)
399
def get_inventory_weave(self):
400
return self.control_weaves.get_weave('inventory',
401
self.get_transaction())
1381
unescape_revid_cache = {}
1382
unescape_fileid_cache = {}
1384
# jam 20061218 In a big fetch, this handles hundreds of thousands
1385
# of lines, so it has had a lot of inlining and optimizing done.
1386
# Sorry that it is a little bit messy.
1387
# Move several functions to be local variables, since this is a long
1389
search = self._file_ids_altered_regex.search
1390
unescape = _unescape_xml
1391
setdefault = result.setdefault
1392
for line, line_key in line_iterator:
1393
match = search(line)
1396
# One call to match.group() returning multiple items is quite a
1397
# bit faster than 2 calls to match.group() each returning 1
1398
file_id, revision_id = match.group('file_id', 'revision_id')
1400
# Inlining the cache lookups helps a lot when you make 170,000
1401
# lines and 350k ids, versus 8.4 unique ids.
1402
# Using a cache helps in 2 ways:
1403
# 1) Avoids unnecessary decoding calls
1404
# 2) Re-uses cached strings, which helps in future set and
1406
# (2) is enough that removing encoding entirely along with
1407
# the cache (so we are using plain strings) results in no
1408
# performance improvement.
1410
revision_id = unescape_revid_cache[revision_id]
1412
unescaped = unescape(revision_id)
1413
unescape_revid_cache[revision_id] = unescaped
1414
revision_id = unescaped
1416
# Note that unconditionally unescaping means that we deserialise
1417
# every fileid, which for general 'pull' is not great, but we don't
1418
# really want to have some many fulltexts that this matters anyway.
1421
file_id = unescape_fileid_cache[file_id]
1423
unescaped = unescape(file_id)
1424
unescape_fileid_cache[file_id] = unescaped
1427
key = (file_id, revision_id)
1428
setdefault(key, False)
1429
if revision_id == line_key[-1]:
1433
def _find_file_ids_from_xml_inventory_lines(self, line_iterator,
1435
"""Helper routine for fileids_altered_by_revision_ids.
1437
This performs the translation of xml lines to revision ids.
1439
:param line_iterator: An iterator of lines, origin_version_id
1440
:param revision_ids: The revision ids to filter for. This should be a
1441
set or other type which supports efficient __contains__ lookups, as
1442
the revision id from each parsed line will be looked up in the
1443
revision_ids filter.
1444
:return: a dictionary mapping altered file-ids to an iterable of
1445
revision_ids. Each altered file-ids has the exact revision_ids that
1446
altered it listed explicitly.
1449
setdefault = result.setdefault
1451
self._find_text_key_references_from_xml_inventory_lines(
1452
line_iterator).iterkeys():
1453
# once data is all ensured-consistent; then this is
1454
# if revision_id == version_id
1455
if key[-1:] in revision_ids:
1456
setdefault(key[0], set()).add(key[-1])
1459
def fileids_altered_by_revision_ids(self, revision_ids, _inv_weave=None):
1460
"""Find the file ids and versions affected by revisions.
1462
:param revisions: an iterable containing revision ids.
1463
:param _inv_weave: The inventory weave from this repository or None.
1464
If None, the inventory weave will be opened automatically.
1465
:return: a dictionary mapping altered file-ids to an iterable of
1466
revision_ids. Each altered file-ids has the exact revision_ids that
1467
altered it listed explicitly.
1469
selected_keys = set((revid,) for revid in revision_ids)
1470
w = _inv_weave or self.inventories
1471
pb = ui.ui_factory.nested_progress_bar()
1473
return self._find_file_ids_from_xml_inventory_lines(
1474
w.iter_lines_added_or_present_in_keys(
1475
selected_keys, pb=pb),
1480
def iter_files_bytes(self, desired_files):
1481
"""Iterate through file versions.
1483
Files will not necessarily be returned in the order they occur in
1484
desired_files. No specific order is guaranteed.
1486
Yields pairs of identifier, bytes_iterator. identifier is an opaque
1487
value supplied by the caller as part of desired_files. It should
1488
uniquely identify the file version in the caller's context. (Examples:
1489
an index number or a TreeTransform trans_id.)
1491
bytes_iterator is an iterable of bytestrings for the file. The
1492
kind of iterable and length of the bytestrings are unspecified, but for
1493
this implementation, it is a list of bytes produced by
1494
VersionedFile.get_record_stream().
1496
:param desired_files: a list of (file_id, revision_id, identifier)
1500
for file_id, revision_id, callable_data in desired_files:
1501
text_keys[(file_id, revision_id)] = callable_data
1502
for record in self.texts.get_record_stream(text_keys, 'unordered', True):
1503
if record.storage_kind == 'absent':
1504
raise errors.RevisionNotPresent(record.key, self)
1505
yield text_keys[record.key], record.get_bytes_as('fulltext')
1507
def _generate_text_key_index(self, text_key_references=None,
1509
"""Generate a new text key index for the repository.
1511
This is an expensive function that will take considerable time to run.
1513
:return: A dict mapping text keys ((file_id, revision_id) tuples) to a
1514
list of parents, also text keys. When a given key has no parents,
1515
the parents list will be [NULL_REVISION].
1517
# All revisions, to find inventory parents.
1518
if ancestors is None:
1519
graph = self.get_graph()
1520
ancestors = graph.get_parent_map(self.all_revision_ids())
1521
if text_key_references is None:
1522
text_key_references = self.find_text_key_references()
1523
pb = ui.ui_factory.nested_progress_bar()
1525
return self._do_generate_text_key_index(ancestors,
1526
text_key_references, pb)
1530
def _do_generate_text_key_index(self, ancestors, text_key_references, pb):
1531
"""Helper for _generate_text_key_index to avoid deep nesting."""
1532
revision_order = tsort.topo_sort(ancestors)
1533
invalid_keys = set()
1535
for revision_id in revision_order:
1536
revision_keys[revision_id] = set()
1537
text_count = len(text_key_references)
1538
# a cache of the text keys to allow reuse; costs a dict of all the
1539
# keys, but saves a 2-tuple for every child of a given key.
1541
for text_key, valid in text_key_references.iteritems():
1543
invalid_keys.add(text_key)
1545
revision_keys[text_key[1]].add(text_key)
1546
text_key_cache[text_key] = text_key
1547
del text_key_references
1549
text_graph = graph.Graph(graph.DictParentsProvider(text_index))
1550
NULL_REVISION = _mod_revision.NULL_REVISION
1551
# Set a cache with a size of 10 - this suffices for bzr.dev but may be
1552
# too small for large or very branchy trees. However, for 55K path
1553
# trees, it would be easy to use too much memory trivially. Ideally we
1554
# could gauge this by looking at available real memory etc, but this is
1555
# always a tricky proposition.
1556
inventory_cache = lru_cache.LRUCache(10)
1557
batch_size = 10 # should be ~150MB on a 55K path tree
1558
batch_count = len(revision_order) / batch_size + 1
1560
pb.update("Calculating text parents.", processed_texts, text_count)
1561
for offset in xrange(batch_count):
1562
to_query = revision_order[offset * batch_size:(offset + 1) *
1566
for rev_tree in self.revision_trees(to_query):
1567
revision_id = rev_tree.get_revision_id()
1568
parent_ids = ancestors[revision_id]
1569
for text_key in revision_keys[revision_id]:
1570
pb.update("Calculating text parents.", processed_texts)
1571
processed_texts += 1
1572
candidate_parents = []
1573
for parent_id in parent_ids:
1574
parent_text_key = (text_key[0], parent_id)
1576
check_parent = parent_text_key not in \
1577
revision_keys[parent_id]
1579
# the parent parent_id is a ghost:
1580
check_parent = False
1581
# truncate the derived graph against this ghost.
1582
parent_text_key = None
1584
# look at the parent commit details inventories to
1585
# determine possible candidates in the per file graph.
1588
inv = inventory_cache[parent_id]
1590
inv = self.revision_tree(parent_id).inventory
1591
inventory_cache[parent_id] = inv
1592
parent_entry = inv._byid.get(text_key[0], None)
1593
if parent_entry is not None:
1595
text_key[0], parent_entry.revision)
1597
parent_text_key = None
1598
if parent_text_key is not None:
1599
candidate_parents.append(
1600
text_key_cache[parent_text_key])
1601
parent_heads = text_graph.heads(candidate_parents)
1602
new_parents = list(parent_heads)
1603
new_parents.sort(key=lambda x:candidate_parents.index(x))
1604
if new_parents == []:
1605
new_parents = [NULL_REVISION]
1606
text_index[text_key] = new_parents
1608
for text_key in invalid_keys:
1609
text_index[text_key] = [NULL_REVISION]
1612
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1613
"""Get an iterable listing the keys of all the data introduced by a set
1616
The keys will be ordered so that the corresponding items can be safely
1617
fetched and inserted in that order.
1619
:returns: An iterable producing tuples of (knit-kind, file-id,
1620
versions). knit-kind is one of 'file', 'inventory', 'signatures',
1621
'revisions'. file-id is None unless knit-kind is 'file'.
1623
# XXX: it's a bit weird to control the inventory weave caching in this
1624
# generator. Ideally the caching would be done in fetch.py I think. Or
1625
# maybe this generator should explicitly have the contract that it
1626
# should not be iterated until the previously yielded item has been
1628
inv_w = self.inventories
1630
# file ids that changed
1631
file_ids = self.fileids_altered_by_revision_ids(revision_ids, inv_w)
1633
num_file_ids = len(file_ids)
1634
for file_id, altered_versions in file_ids.iteritems():
1635
if _files_pb is not None:
1636
_files_pb.update("fetch texts", count, num_file_ids)
1638
yield ("file", file_id, altered_versions)
1639
# We're done with the files_pb. Note that it finished by the caller,
1640
# just as it was created by the caller.
1644
yield ("inventory", None, revision_ids)
1647
# XXX: Note ATM no callers actually pay attention to this return
1648
# instead they just use the list of revision ids and ignore
1649
# missing sigs. Consider removing this work entirely
1650
revisions_with_signatures = set(self.signatures.get_parent_map(
1651
[(r,) for r in revision_ids]))
1652
revisions_with_signatures = set(
1653
[r for (r,) in revisions_with_signatures])
1654
revisions_with_signatures.intersection_update(revision_ids)
1655
yield ("signatures", None, revisions_with_signatures)
1658
yield ("revisions", None, revision_ids)
403
1660
@needs_read_lock
404
1661
def get_inventory(self, revision_id):
405
"""Get Inventory object by hash."""
406
return self.deserialise_inventory(
407
revision_id, self.get_inventory_xml(revision_id))
1662
"""Get Inventory object by revision id."""
1663
return self.iter_inventories([revision_id]).next()
1665
def iter_inventories(self, revision_ids):
1666
"""Get many inventories by revision_ids.
1668
This will buffer some or all of the texts used in constructing the
1669
inventories in memory, but will only parse a single inventory at a
1672
:return: An iterator of inventories.
1674
if ((None in revision_ids)
1675
or (_mod_revision.NULL_REVISION in revision_ids)):
1676
raise ValueError('cannot get null revision inventory')
1677
return self._iter_inventories(revision_ids)
1679
def _iter_inventories(self, revision_ids):
1680
"""single-document based inventory iteration."""
1681
for text, revision_id in self._iter_inventory_xmls(revision_ids):
1682
yield self.deserialise_inventory(revision_id, text)
1684
def _iter_inventory_xmls(self, revision_ids):
1685
keys = [(revision_id,) for revision_id in revision_ids]
1686
stream = self.inventories.get_record_stream(keys, 'unordered', True)
1688
for record in stream:
1689
if record.storage_kind != 'absent':
1690
text_chunks[record.key] = record.get_bytes_as('chunked')
1692
raise errors.NoSuchRevision(self, record.key)
1694
chunks = text_chunks.pop(key)
1695
yield ''.join(chunks), key[-1]
409
1697
def deserialise_inventory(self, revision_id, xml):
410
1698
"""Transform the xml into an inventory object.
618
1986
:param revision_ids: A non-empty list of revision_ids whose ancestry
619
1987
will be checked. Typically the last revision_id of a branch.
622
raise ValueError("revision_ids must be non-empty in %s.check"
624
1989
return self._check(revision_ids)
626
1991
def _check(self, revision_ids):
627
result = bzrlib.check.Check(self)
1992
result = check.Check(self)
632
class AllInOneRepository(Repository):
633
"""Legacy support - the repository behaviour for all-in-one branches."""
635
def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
636
# we reuse one control files instance.
637
dir_mode = a_bzrdir._control_files._dir_mode
638
file_mode = a_bzrdir._control_files._file_mode
640
def get_store(name, compressed=True, prefixed=False):
641
# FIXME: This approach of assuming stores are all entirely compressed
642
# or entirely uncompressed is tidy, but breaks upgrade from
643
# some existing branches where there's a mixture; we probably
644
# still want the option to look for both.
645
relpath = a_bzrdir._control_files._escape(name)
646
store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
647
prefixed=prefixed, compressed=compressed,
650
#if self._transport.should_cache():
651
# cache_path = os.path.join(self.cache_root, name)
652
# os.mkdir(cache_path)
653
# store = bzrlib.store.CachedStore(store, cache_path)
656
# not broken out yet because the controlweaves|inventory_store
657
# and text_store | weave_store bits are still different.
658
if isinstance(_format, RepositoryFormat4):
659
# cannot remove these - there is still no consistent api
660
# which allows access to this old info.
661
self.inventory_store = get_store('inventory-store')
662
text_store = get_store('text-store')
663
super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)
667
"""AllInOne repositories cannot be shared."""
671
def set_make_working_trees(self, new_value):
672
"""Set the policy flag for making working trees when creating branches.
674
This only applies to branches that use this repository.
676
The default is 'True'.
677
:param new_value: True to restore the default, False to disable making
1996
def _warn_if_deprecated(self):
1997
global _deprecation_warning_done
1998
if _deprecation_warning_done:
2000
_deprecation_warning_done = True
2001
warning("Format %s for %s is deprecated - please use 'bzr upgrade' to get better performance"
2002
% (self._format, self.bzrdir.transport.base))
2004
def supports_rich_root(self):
2005
return self._format.rich_root_data
2007
def _check_ascii_revisionid(self, revision_id, method):
2008
"""Private helper for ascii-only repositories."""
2009
# weave repositories refuse to store revisionids that are non-ascii.
2010
if revision_id is not None:
2011
# weaves require ascii revision ids.
2012
if isinstance(revision_id, unicode):
2014
revision_id.encode('ascii')
2015
except UnicodeEncodeError:
2016
raise errors.NonAsciiRevisionId(method, self)
2019
revision_id.decode('ascii')
2020
except UnicodeDecodeError:
2021
raise errors.NonAsciiRevisionId(method, self)
2023
def revision_graph_can_have_wrong_parents(self):
2024
"""Is it possible for this repository to have a revision graph with
2027
If True, then this repository must also implement
2028
_find_inconsistent_revision_parents so that check and reconcile can
2029
check for inconsistencies before proceeding with other checks that may
2030
depend on the revision index being consistent.
680
raise NotImplementedError(self.set_make_working_trees)
682
def make_working_trees(self):
683
"""Returns the policy for making working trees on new branches."""
2032
raise NotImplementedError(self.revision_graph_can_have_wrong_parents)
2035
# remove these delegates a while after bzr 0.15
2036
def __make_delegated(name, from_module):
2037
def _deprecated_repository_forwarder():
2038
symbol_versioning.warn('%s moved to %s in bzr 0.15'
2039
% (name, from_module),
2042
m = __import__(from_module, globals(), locals(), [name])
2044
return getattr(m, name)
2045
except AttributeError:
2046
raise AttributeError('module %s has no name %s'
2048
globals()[name] = _deprecated_repository_forwarder
2051
'AllInOneRepository',
2052
'WeaveMetaDirRepository',
2053
'PreSplitOutRepositoryFormat',
2054
'RepositoryFormat4',
2055
'RepositoryFormat5',
2056
'RepositoryFormat6',
2057
'RepositoryFormat7',
2059
__make_delegated(_name, 'bzrlib.repofmt.weaverepo')
2063
'RepositoryFormatKnit',
2064
'RepositoryFormatKnit1',
2066
__make_delegated(_name, 'bzrlib.repofmt.knitrepo')
687
2069
def install_revision(repository, rev, revision_tree):
688
2070
"""Install all revision data into a repository."""
2071
install_revisions(repository, [(rev, revision_tree, None)])
2074
def install_revisions(repository, iterable, num_revisions=None, pb=None):
2075
"""Install all revision data into a repository.
2077
Accepts an iterable of revision, tree, signature tuples. The signature
2080
repository.start_write_group()
2082
for n, (revision, revision_tree, signature) in enumerate(iterable):
2083
_install_revision(repository, revision, revision_tree, signature)
2085
pb.update('Transferring revisions', n + 1, num_revisions)
2087
repository.abort_write_group()
2090
repository.commit_write_group()
2093
def _install_revision(repository, rev, revision_tree, signature):
2094
"""Install all revision data into a repository."""
689
2095
present_parents = []
690
2096
parent_trees = {}
691
2097
for p_id in rev.parent_ids:
761
self.control_files._transport.delete('no-working-trees')
2171
self._transport.delete('no-working-trees')
762
2172
except errors.NoSuchFile:
765
self.control_files.put_utf8('no-working-trees', '')
2175
self._transport.put_bytes('no-working-trees', '',
2176
mode=self.bzrdir._get_file_mode())
767
2178
def make_working_trees(self):
768
2179
"""Returns the policy for making working trees on new branches."""
769
return not self.control_files._transport.has('no-working-trees')
772
class KnitRepository(MetaDirRepository):
773
"""Knit format repository."""
775
def _inventory_add_lines(self, inv_vf, revid, parents, lines):
776
inv_vf.add_lines_with_ghosts(revid, parents, lines)
779
def _all_revision_ids(self):
780
"""See Repository.all_revision_ids()."""
781
# Knits get the revision graph from the index of the revision knit, so
782
# it's always possible even if they're on an unlistable transport.
783
return self._revision_store.all_revision_ids(self.get_transaction())
785
def fileid_involved_between_revs(self, from_revid, to_revid):
786
"""Find file_id(s) which are involved in the changes between revisions.
788
This determines the set of revisions which are involved, and then
789
finds all file ids affected by those revisions.
791
vf = self._get_revision_vf()
792
from_set = set(vf.get_ancestry(from_revid))
793
to_set = set(vf.get_ancestry(to_revid))
794
changed = to_set.difference(from_set)
795
return self._fileid_involved_by_set(changed)
797
def fileid_involved(self, last_revid=None):
798
"""Find all file_ids modified in the ancestry of last_revid.
800
:param last_revid: If None, last_revision() will be used.
803
changed = set(self.all_revision_ids())
805
changed = set(self.get_ancestry(last_revid))
808
return self._fileid_involved_by_set(changed)
811
def get_ancestry(self, revision_id):
812
"""Return a list of revision-ids integrated by a revision.
814
This is topologically sorted.
816
if revision_id is None:
818
vf = self._get_revision_vf()
820
return [None] + vf.get_ancestry(revision_id)
821
except errors.RevisionNotPresent:
822
raise errors.NoSuchRevision(self, revision_id)
825
def get_revision(self, revision_id):
826
"""Return the Revision object for a named revision"""
827
return self.get_revision_reconcile(revision_id)
830
def get_revision_graph(self, revision_id=None):
831
"""Return a dictionary containing the revision graph.
833
:return: a dictionary of revision_id->revision_parents_list.
835
weave = self._get_revision_vf()
836
entire_graph = weave.get_graph()
837
if revision_id is None:
838
return weave.get_graph()
839
elif revision_id not in weave:
840
raise errors.NoSuchRevision(self, revision_id)
842
# add what can be reached from revision_id
844
pending = set([revision_id])
845
while len(pending) > 0:
847
result[node] = weave.get_parents(node)
848
for revision_id in result[node]:
849
if revision_id not in result:
850
pending.add(revision_id)
854
def get_revision_graph_with_ghosts(self, revision_ids=None):
855
"""Return a graph of the revisions with ghosts marked as applicable.
857
:param revision_ids: an iterable of revisions to graph or None for all.
858
:return: a Graph object with the graph reachable from revision_ids.
861
vf = self._get_revision_vf()
862
versions = set(vf.versions())
864
pending = set(self.all_revision_ids())
867
pending = set(revision_ids)
868
required = set(revision_ids)
871
revision_id = pending.pop()
872
if not revision_id in versions:
873
if revision_id in required:
874
raise errors.NoSuchRevision(self, revision_id)
876
result.add_ghost(revision_id)
877
# mark it as done so we don't try for it again.
878
done.add(revision_id)
880
parent_ids = vf.get_parents_with_ghosts(revision_id)
881
for parent_id in parent_ids:
882
# is this queued or done ?
883
if (parent_id not in pending and
884
parent_id not in done):
886
pending.add(parent_id)
887
result.add_node(revision_id, parent_ids)
888
done.add(revision_id)
891
def _get_revision_vf(self):
892
""":return: a versioned file containing the revisions."""
893
vf = self._revision_store.get_revision_file(self.get_transaction())
897
def reconcile(self, other=None, thorough=False):
898
"""Reconcile this repository."""
899
from bzrlib.reconcile import KnitReconciler
900
reconciler = KnitReconciler(self, thorough=thorough)
901
reconciler.reconcile()
2180
return not self._transport.has('no-working-trees')
2183
class MetaDirVersionedFileRepository(MetaDirRepository):
2184
"""Repositories in a meta-dir, that work via versioned file objects."""
2186
def __init__(self, _format, a_bzrdir, control_files):
2187
super(MetaDirVersionedFileRepository, self).__init__(_format, a_bzrdir,
2191
class RepositoryFormatRegistry(registry.Registry):
2192
"""Registry of RepositoryFormats."""
2194
def get(self, format_string):
2195
r = registry.Registry.get(self, format_string)
904
def revision_parents(self, revid):
905
return self._get_revision_vf().get_parents(rev_id)
2201
format_registry = RepositoryFormatRegistry()
2202
"""Registry of formats, indexed by their identifying format string.
2204
This can contain either format instances themselves, or classes/factories that
2205
can be called to obtain one.
2209
#####################################################################
2210
# Repository Formats
907
2212
class RepositoryFormat(object):
908
2213
"""A repository format.
1037
2353
raise NotImplementedError(self.open)
1040
def register_format(klass, format):
1041
klass._formats[format.get_format_string()] = format
1044
def set_default_format(klass, format):
1045
klass._default_format = format
1048
def unregister_format(klass, format):
1049
assert klass._formats[format.get_format_string()] is format
1050
del klass._formats[format.get_format_string()]
1053
class PreSplitOutRepositoryFormat(RepositoryFormat):
1054
"""Base class for the pre split out repository formats."""
1056
def initialize(self, a_bzrdir, shared=False, _internal=False):
1057
"""Create a weave repository.
1059
TODO: when creating split out bzr branch formats, move this to a common
1060
base for Format5, Format6. or something like that.
1062
from bzrlib.weavefile import write_weave_v5
1063
from bzrlib.weave import Weave
1066
raise errors.IncompatibleFormat(self, a_bzrdir._format)
1069
# always initialized when the bzrdir is.
1070
return self.open(a_bzrdir, _found=True)
1072
# Create an empty weave
1074
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1075
empty_weave = sio.getvalue()
1077
mutter('creating repository in %s.', a_bzrdir.transport.base)
1078
dirs = ['revision-store', 'weaves']
1079
files = [('inventory.weave', StringIO(empty_weave)),
1082
# FIXME: RBC 20060125 don't peek under the covers
1083
# NB: no need to escape relative paths that are url safe.
1084
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
1086
control_files.create_lock()
1087
control_files.lock_write()
1088
control_files._transport.mkdir_multi(dirs,
1089
mode=control_files._dir_mode)
1091
for file, content in files:
1092
control_files.put(file, content)
1094
control_files.unlock()
1095
return self.open(a_bzrdir, _found=True)
1097
def _get_control_store(self, repo_transport, control_files):
1098
"""Return the control store for this repository."""
1099
return self._get_versioned_file_store('',
1104
def _get_text_store(self, transport, control_files):
1105
"""Get a store for file texts for this format."""
1106
raise NotImplementedError(self._get_text_store)
1108
def open(self, a_bzrdir, _found=False):
1109
"""See RepositoryFormat.open()."""
1111
# we are being called directly and must probe.
1112
raise NotImplementedError
1114
repo_transport = a_bzrdir.get_repository_transport(None)
1115
control_files = a_bzrdir._control_files
1116
text_store = self._get_text_store(repo_transport, control_files)
1117
control_store = self._get_control_store(repo_transport, control_files)
1118
_revision_store = self._get_revision_store(repo_transport, control_files)
1119
return AllInOneRepository(_format=self,
1121
_revision_store=_revision_store,
1122
control_store=control_store,
1123
text_store=text_store)
1126
class RepositoryFormat4(PreSplitOutRepositoryFormat):
1127
"""Bzr repository format 4.
1129
This repository format has:
1131
- TextStores for texts, inventories,revisions.
1133
This format is deprecated: it indexes texts using a text id which is
1134
removed in format 5; initialization and write support for this format
1139
super(RepositoryFormat4, self).__init__()
1140
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
1142
def get_format_description(self):
1143
"""See RepositoryFormat.get_format_description()."""
1144
return "Repository format 4"
1146
def initialize(self, url, shared=False, _internal=False):
1147
"""Format 4 branches cannot be created."""
1148
raise errors.UninitializableFormat(self)
1150
def is_supported(self):
1151
"""Format 4 is not supported.
1153
It is not supported because the model changed from 4 to 5 and the
1154
conversion logic is expensive - so doing it on the fly was not
1159
def _get_control_store(self, repo_transport, control_files):
1160
"""Format 4 repositories have no formal control store at this point.
1162
This will cause any control-file-needing apis to fail - this is desired.
1166
def _get_revision_store(self, repo_transport, control_files):
1167
"""See RepositoryFormat._get_revision_store()."""
1168
from bzrlib.xml4 import serializer_v4
1169
return self._get_text_rev_store(repo_transport,
1172
serializer=serializer_v4)
1174
def _get_text_store(self, transport, control_files):
1175
"""See RepositoryFormat._get_text_store()."""
1178
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1179
"""Bzr control format 5.
1181
This repository format has:
1182
- weaves for file texts and inventory
1184
- TextStores for revisions and signatures.
1188
super(RepositoryFormat5, self).__init__()
1189
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1191
def get_format_description(self):
1192
"""See RepositoryFormat.get_format_description()."""
1193
return "Weave repository format 5"
1195
def _get_revision_store(self, repo_transport, control_files):
1196
"""See RepositoryFormat._get_revision_store()."""
1197
"""Return the revision store object for this a_bzrdir."""
1198
return self._get_text_rev_store(repo_transport,
1203
def _get_text_store(self, transport, control_files):
1204
"""See RepositoryFormat._get_text_store()."""
1205
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1208
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1209
"""Bzr control format 6.
1211
This repository format has:
1212
- weaves for file texts and inventory
1213
- hash subdirectory based stores.
1214
- TextStores for revisions and signatures.
1218
super(RepositoryFormat6, self).__init__()
1219
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1221
def get_format_description(self):
1222
"""See RepositoryFormat.get_format_description()."""
1223
return "Weave repository format 6"
1225
def _get_revision_store(self, repo_transport, control_files):
1226
"""See RepositoryFormat._get_revision_store()."""
1227
return self._get_text_rev_store(repo_transport,
1233
def _get_text_store(self, transport, control_files):
1234
"""See RepositoryFormat._get_text_store()."""
1235
return self._get_versioned_file_store('weaves', transport, control_files)
1238
2356
class MetaDirRepositoryFormat(RepositoryFormat):
1239
2357
"""Common base class for the new repositories using the metadir layout."""
2359
rich_root_data = False
2360
supports_tree_reference = False
2361
supports_external_lookups = False
2364
def _matchingbzrdir(self):
2365
matching = bzrdir.BzrDirMetaFormat1()
2366
matching.repository_format = self
1241
2369
def __init__(self):
1242
2370
super(MetaDirRepositoryFormat, self).__init__()
1243
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1245
2372
def _create_control_files(self, a_bzrdir):
1246
2373
"""Create the required files and the initial control_files object."""
1247
2374
# FIXME: RBC 20060125 don't peek under the covers
1248
2375
# NB: no need to escape relative paths that are url safe.
1249
2376
repository_transport = a_bzrdir.get_repository_transport(self)
1250
control_files = LockableFiles(repository_transport, 'lock', LockDir)
2377
control_files = lockable_files.LockableFiles(repository_transport,
2378
'lock', lockdir.LockDir)
1251
2379
control_files.create_lock()
1252
2380
return control_files
1255
2383
"""Upload the initial blank content."""
1256
2384
control_files = self._create_control_files(a_bzrdir)
1257
2385
control_files.lock_write()
2386
transport = control_files._transport
2388
utf8_files += [('shared-storage', '')]
1259
control_files._transport.mkdir_multi(dirs,
1260
mode=control_files._dir_mode)
1261
for file, content in files:
1262
control_files.put(file, content)
1263
for file, content in utf8_files:
1264
control_files.put_utf8(file, content)
1266
control_files.put_utf8('shared-storage', '')
2390
transport.mkdir_multi(dirs, mode=a_bzrdir._get_dir_mode())
2391
for (filename, content_stream) in files:
2392
transport.put_file(filename, content_stream,
2393
mode=a_bzrdir._get_file_mode())
2394
for (filename, content_bytes) in utf8_files:
2395
transport.put_bytes_non_atomic(filename, content_bytes,
2396
mode=a_bzrdir._get_file_mode())
1268
2398
control_files.unlock()
1271
class RepositoryFormat7(MetaDirRepositoryFormat):
1272
"""Bzr repository 7.
1274
This repository format has:
1275
- weaves for file texts and inventory
1276
- hash subdirectory based stores.
1277
- TextStores for revisions and signatures.
1278
- a format marker of its own
1279
- an optional 'shared-storage' flag
1280
- an optional 'no-working-trees' flag
1283
def _get_control_store(self, repo_transport, control_files):
1284
"""Return the control store for this repository."""
1285
return self._get_versioned_file_store('',
1290
def get_format_string(self):
1291
"""See RepositoryFormat.get_format_string()."""
1292
return "Bazaar-NG Repository format 7"
1294
def get_format_description(self):
1295
"""See RepositoryFormat.get_format_description()."""
1296
return "Weave repository format 7"
1298
def _get_revision_store(self, repo_transport, control_files):
1299
"""See RepositoryFormat._get_revision_store()."""
1300
return self._get_text_rev_store(repo_transport,
1307
def _get_text_store(self, transport, control_files):
1308
"""See RepositoryFormat._get_text_store()."""
1309
return self._get_versioned_file_store('weaves',
1313
def initialize(self, a_bzrdir, shared=False):
1314
"""Create a weave repository.
1316
:param shared: If true the repository will be initialized as a shared
1319
from bzrlib.weavefile import write_weave_v5
1320
from bzrlib.weave import Weave
1322
# Create an empty weave
1324
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1325
empty_weave = sio.getvalue()
1327
mutter('creating repository in %s.', a_bzrdir.transport.base)
1328
dirs = ['revision-store', 'weaves']
1329
files = [('inventory.weave', StringIO(empty_weave)),
1331
utf8_files = [('format', self.get_format_string())]
1333
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1334
return self.open(a_bzrdir=a_bzrdir, _found=True)
1336
def open(self, a_bzrdir, _found=False, _override_transport=None):
1337
"""See RepositoryFormat.open().
1339
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1340
repository at a slightly different url
1341
than normal. I.e. during 'upgrade'.
1344
format = RepositoryFormat.find_format(a_bzrdir)
1345
assert format.__class__ == self.__class__
1346
if _override_transport is not None:
1347
repo_transport = _override_transport
1349
repo_transport = a_bzrdir.get_repository_transport(None)
1350
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1351
text_store = self._get_text_store(repo_transport, control_files)
1352
control_store = self._get_control_store(repo_transport, control_files)
1353
_revision_store = self._get_revision_store(repo_transport, control_files)
1354
return MetaDirRepository(_format=self,
1356
control_files=control_files,
1357
_revision_store=_revision_store,
1358
control_store=control_store,
1359
text_store=text_store)
1362
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1363
"""Bzr repository knit format 1.
1365
This repository format has:
1366
- knits for file texts and inventory
1367
- hash subdirectory based stores.
1368
- knits for revisions and signatures
1369
- TextStores for revisions and signatures.
1370
- a format marker of its own
1371
- an optional 'shared-storage' flag
1372
- an optional 'no-working-trees' flag
1375
This format was introduced in bzr 0.8.
1378
def _get_control_store(self, repo_transport, control_files):
1379
"""Return the control store for this repository."""
1380
return VersionedFileStore(
1383
file_mode=control_files._file_mode,
1384
versionedfile_class=KnitVersionedFile,
1385
versionedfile_kwargs={'factory':KnitPlainFactory()},
1388
def get_format_string(self):
1389
"""See RepositoryFormat.get_format_string()."""
1390
return "Bazaar-NG Knit Repository Format 1"
1392
def get_format_description(self):
1393
"""See RepositoryFormat.get_format_description()."""
1394
return "Knit repository format 1"
1396
def _get_revision_store(self, repo_transport, control_files):
1397
"""See RepositoryFormat._get_revision_store()."""
1398
from bzrlib.store.revision.knit import KnitRevisionStore
1399
versioned_file_store = VersionedFileStore(
1401
file_mode=control_files._file_mode,
1404
versionedfile_class=KnitVersionedFile,
1405
versionedfile_kwargs={'delta':False, 'factory':KnitPlainFactory()},
1408
return KnitRevisionStore(versioned_file_store)
1410
def _get_text_store(self, transport, control_files):
1411
"""See RepositoryFormat._get_text_store()."""
1412
return self._get_versioned_file_store('knits',
1415
versionedfile_class=KnitVersionedFile,
1418
def initialize(self, a_bzrdir, shared=False):
1419
"""Create a knit format 1 repository.
1421
:param a_bzrdir: bzrdir to contain the new repository; must already
1423
:param shared: If true the repository will be initialized as a shared
1426
mutter('creating repository in %s.', a_bzrdir.transport.base)
1427
dirs = ['revision-store', 'knits']
1429
utf8_files = [('format', self.get_format_string())]
1431
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1432
repo_transport = a_bzrdir.get_repository_transport(None)
1433
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1434
control_store = self._get_control_store(repo_transport, control_files)
1435
transaction = bzrlib.transactions.WriteTransaction()
1436
# trigger a write of the inventory store.
1437
control_store.get_weave_or_empty('inventory', transaction)
1438
_revision_store = self._get_revision_store(repo_transport, control_files)
1439
_revision_store.has_revision_id('A', transaction)
1440
_revision_store.get_signature_file(transaction)
1441
return self.open(a_bzrdir=a_bzrdir, _found=True)
1443
def open(self, a_bzrdir, _found=False, _override_transport=None):
1444
"""See RepositoryFormat.open().
1446
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1447
repository at a slightly different url
1448
than normal. I.e. during 'upgrade'.
1451
format = RepositoryFormat.find_format(a_bzrdir)
1452
assert format.__class__ == self.__class__
1453
if _override_transport is not None:
1454
repo_transport = _override_transport
1456
repo_transport = a_bzrdir.get_repository_transport(None)
1457
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1458
text_store = self._get_text_store(repo_transport, control_files)
1459
control_store = self._get_control_store(repo_transport, control_files)
1460
_revision_store = self._get_revision_store(repo_transport, control_files)
1461
return KnitRepository(_format=self,
1463
control_files=control_files,
1464
_revision_store=_revision_store,
1465
control_store=control_store,
1466
text_store=text_store)
1469
2401
# formats which have no format string are not discoverable
1470
# and not independently creatable, so are not registered.
1471
RepositoryFormat.register_format(RepositoryFormat7())
1472
_default_format = RepositoryFormatKnit1()
1473
RepositoryFormat.register_format(_default_format)
1474
RepositoryFormat.set_default_format(_default_format)
1475
_legacy_formats = [RepositoryFormat4(),
1476
RepositoryFormat5(),
1477
RepositoryFormat6()]
2402
# and not independently creatable, so are not registered. They're
2403
# all in bzrlib.repofmt.weaverepo now. When an instance of one of these is
2404
# needed, it's constructed directly by the BzrDir. Non-native formats where
2405
# the repository is not separately opened are similar.
2407
format_registry.register_lazy(
2408
'Bazaar-NG Repository format 7',
2409
'bzrlib.repofmt.weaverepo',
2413
format_registry.register_lazy(
2414
'Bazaar-NG Knit Repository Format 1',
2415
'bzrlib.repofmt.knitrepo',
2416
'RepositoryFormatKnit1',
2419
format_registry.register_lazy(
2420
'Bazaar Knit Repository Format 3 (bzr 0.15)\n',
2421
'bzrlib.repofmt.knitrepo',
2422
'RepositoryFormatKnit3',
2425
format_registry.register_lazy(
2426
'Bazaar Knit Repository Format 4 (bzr 1.0)\n',
2427
'bzrlib.repofmt.knitrepo',
2428
'RepositoryFormatKnit4',
2431
# Pack-based formats. There is one format for pre-subtrees, and one for
2432
# post-subtrees to allow ease of testing.
2433
# NOTE: These are experimental in 0.92. Stable in 1.0 and above
2434
format_registry.register_lazy(
2435
'Bazaar pack repository format 1 (needs bzr 0.92)\n',
2436
'bzrlib.repofmt.pack_repo',
2437
'RepositoryFormatKnitPack1',
2439
format_registry.register_lazy(
2440
'Bazaar pack repository format 1 with subtree support (needs bzr 0.92)\n',
2441
'bzrlib.repofmt.pack_repo',
2442
'RepositoryFormatKnitPack3',
2444
format_registry.register_lazy(
2445
'Bazaar pack repository format 1 with rich root (needs bzr 1.0)\n',
2446
'bzrlib.repofmt.pack_repo',
2447
'RepositoryFormatKnitPack4',
2449
format_registry.register_lazy(
2450
'Bazaar RepositoryFormatKnitPack5 (bzr 1.6)\n',
2451
'bzrlib.repofmt.pack_repo',
2452
'RepositoryFormatKnitPack5',
2454
format_registry.register_lazy(
2455
'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6.1)\n',
2456
'bzrlib.repofmt.pack_repo',
2457
'RepositoryFormatKnitPack5RichRoot',
2459
format_registry.register_lazy(
2460
'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6)\n',
2461
'bzrlib.repofmt.pack_repo',
2462
'RepositoryFormatKnitPack5RichRootBroken',
2464
format_registry.register_lazy(
2465
'Bazaar RepositoryFormatKnitPack6 (bzr 1.9)\n',
2466
'bzrlib.repofmt.pack_repo',
2467
'RepositoryFormatKnitPack6',
2469
format_registry.register_lazy(
2470
'Bazaar RepositoryFormatKnitPack6RichRoot (bzr 1.9)\n',
2471
'bzrlib.repofmt.pack_repo',
2472
'RepositoryFormatKnitPack6RichRoot',
2475
# Development formats.
2476
# 1.7->1.8 go below here
2477
format_registry.register_lazy(
2478
"Bazaar development format 2 (needs bzr.dev from before 1.8)\n",
2479
'bzrlib.repofmt.pack_repo',
2480
'RepositoryFormatPackDevelopment2',
2482
format_registry.register_lazy(
2483
("Bazaar development format 2 with subtree support "
2484
"(needs bzr.dev from before 1.8)\n"),
2485
'bzrlib.repofmt.pack_repo',
2486
'RepositoryFormatPackDevelopment2Subtree',
1480
2490
class InterRepository(InterObject):
1489
2499
InterRepository.get(other).method_name(parameters).
2502
_walk_to_common_revisions_batch_size = 1
1493
2504
"""The available optimised InterRepository types."""
1496
def copy_content(self, revision_id=None, basis=None):
1497
"""Make a complete copy of the content in self into destination.
1499
This is a destructive operation! Do not use it on existing
1502
:param revision_id: Only copy the content needed to construct
1503
revision_id and its parents.
1504
:param basis: Copy the needed data preferentially from basis.
1507
self.target.set_make_working_trees(self.source.make_working_trees())
1508
except NotImplementedError:
1510
# grab the basis available data
1511
if basis is not None:
1512
self.target.fetch(basis, revision_id=revision_id)
1513
# but don't bother fetching if we have the needed data now.
1514
if (revision_id not in (None, NULL_REVISION) and
1515
self.target.has_revision(revision_id)):
1517
self.target.fetch(self.source, revision_id=revision_id)
1519
def _double_lock(self, lock_source, lock_target):
1520
"""Take out too locks, rolling back the first if the second throws."""
1525
# we want to ensure that we don't leave source locked by mistake.
1526
# and any error on target should not confuse source.
1527
self.source.unlock()
1531
def fetch(self, revision_id=None, pb=None):
2506
def __init__(self, source, target):
2507
InterObject.__init__(self, source, target)
2508
# These two attributes may be overridden by e.g. InterOtherToRemote to
2509
# provide a faster implementation.
2510
self.target_get_graph = self.target.get_graph
2511
self.target_get_parent_map = self.target.get_parent_map
2513
def copy_content(self, revision_id=None):
2514
raise NotImplementedError(self.copy_content)
2516
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
1532
2517
"""Fetch the content required to construct revision_id.
1534
The content is copied from source to target.
2519
The content is copied from self.source to self.target.
1536
2521
:param revision_id: if None all content is copied, if NULL_REVISION no
1537
2522
content is copied.
1538
2523
:param pb: optional progress bar to use for progress reports. If not
1539
2524
provided a default one will be created.
1541
Returns the copied revision count and the failed revisions in a tuple:
1544
from bzrlib.fetch import GenericRepoFetcher
1545
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1546
self.source, self.source._format, self.target, self.target._format)
1547
f = GenericRepoFetcher(to_repository=self.target,
1548
from_repository=self.source,
1549
last_revision=revision_id,
1551
return f.count_copied, f.failed_revisions
1553
def lock_read(self):
1554
"""Take out a logical read lock.
1556
This will lock the source branch and the target branch. The source gets
1557
a read lock and the target a read lock.
1559
self._double_lock(self.source.lock_read, self.target.lock_read)
1561
def lock_write(self):
1562
"""Take out a logical write lock.
1564
This will lock the source branch and the target branch. The source gets
1565
a read lock and the target a write lock.
1567
self._double_lock(self.source.lock_read, self.target.lock_write)
2526
:returns: (copied_revision_count, failures).
2528
# Normally we should find a specific InterRepository subclass to do
2529
# the fetch; if nothing else then at least InterSameDataRepository.
2530
# If none of them is suitable it looks like fetching is not possible;
2531
# we try to give a good message why. _assert_same_model will probably
2532
# give a helpful message; otherwise a generic one.
2533
self._assert_same_model(self.source, self.target)
2534
raise errors.IncompatibleRepositories(self.source, self.target,
2535
"no suitableInterRepository found")
2537
def _walk_to_common_revisions(self, revision_ids):
2538
"""Walk out from revision_ids in source to revisions target has.
2540
:param revision_ids: The start point for the search.
2541
:return: A set of revision ids.
2543
target_graph = self.target_get_graph()
2544
revision_ids = frozenset(revision_ids)
2545
# Fast path for the case where all the revisions are already in the
2547
# (Although this does incur an extra round trip for the
2548
# fairly common case where the target doesn't already have the revision
2550
if set(target_graph.get_parent_map(revision_ids)) == revision_ids:
2551
return graph.SearchResult(revision_ids, set(), 0, set())
2552
missing_revs = set()
2553
source_graph = self.source.get_graph()
2554
# ensure we don't pay silly lookup costs.
2555
searcher = source_graph._make_breadth_first_searcher(revision_ids)
2556
null_set = frozenset([_mod_revision.NULL_REVISION])
2557
searcher_exhausted = False
2561
# Iterate the searcher until we have enough next_revs
2562
while len(next_revs) < self._walk_to_common_revisions_batch_size:
2564
next_revs_part, ghosts_part = searcher.next_with_ghosts()
2565
next_revs.update(next_revs_part)
2566
ghosts.update(ghosts_part)
2567
except StopIteration:
2568
searcher_exhausted = True
2570
# If there are ghosts in the source graph, and the caller asked for
2571
# them, make sure that they are present in the target.
2572
# We don't care about other ghosts as we can't fetch them and
2573
# haven't been asked to.
2574
ghosts_to_check = set(revision_ids.intersection(ghosts))
2575
revs_to_get = set(next_revs).union(ghosts_to_check)
2577
have_revs = set(target_graph.get_parent_map(revs_to_get))
2578
# we always have NULL_REVISION present.
2579
have_revs = have_revs.union(null_set)
2580
# Check if the target is missing any ghosts we need.
2581
ghosts_to_check.difference_update(have_revs)
2583
# One of the caller's revision_ids is a ghost in both the
2584
# source and the target.
2585
raise errors.NoSuchRevision(
2586
self.source, ghosts_to_check.pop())
2587
missing_revs.update(next_revs - have_revs)
2588
# Because we may have walked past the original stop point, make
2589
# sure everything is stopped
2590
stop_revs = searcher.find_seen_ancestors(have_revs)
2591
searcher.stop_searching_any(stop_revs)
2592
if searcher_exhausted:
2594
return searcher.get_result()
2596
@deprecated_method(one_two)
1569
2597
@needs_read_lock
1570
def missing_revision_ids(self, revision_id=None):
2598
def missing_revision_ids(self, revision_id=None, find_ghosts=True):
1571
2599
"""Return the revision ids that source has that target does not.
1573
2601
These are returned in topological order.
1575
2603
:param revision_id: only return revision ids included by this
2605
:param find_ghosts: If True find missing revisions in deep history
2606
rather than just finding the surface difference.
2608
return list(self.search_missing_revision_ids(
2609
revision_id, find_ghosts).get_keys())
2612
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
2613
"""Return the revision ids that source has that target does not.
2615
:param revision_id: only return revision ids included by this
2617
:param find_ghosts: If True find missing revisions in deep history
2618
rather than just finding the surface difference.
2619
:return: A bzrlib.graph.SearchResult.
2621
# stop searching at found target revisions.
2622
if not find_ghosts and revision_id is not None:
2623
return self._walk_to_common_revisions([revision_id])
1578
2624
# generic, possibly worst case, slow code path.
1579
2625
target_ids = set(self.target.all_revision_ids())
1580
2626
if revision_id is not None:
1581
2627
source_ids = self.source.get_ancestry(revision_id)
1582
assert source_ids[0] == None
2628
if source_ids[0] is not None:
2629
raise AssertionError()
1583
2630
source_ids.pop(0)
1585
2632
source_ids = self.source.all_revision_ids()
1586
2633
result_set = set(source_ids).difference(target_ids)
1587
# this may look like a no-op: its not. It preserves the ordering
1588
# other_ids had while only returning the members from other_ids
1589
# that we've decided we need.
1590
return [rev_id for rev_id in source_ids if rev_id in result_set]
1593
"""Release the locks on source and target."""
1595
self.target.unlock()
1597
self.source.unlock()
1600
class InterWeaveRepo(InterRepository):
1601
"""Optimised code paths between Weave based repositories."""
1603
_matching_repo_format = RepositoryFormat7()
1604
"""Repository format for testing with."""
2634
return self.source.revision_ids_to_search_result(result_set)
2637
def _same_model(source, target):
2638
"""True if source and target have the same data representation.
2640
Note: this is always called on the base class; overriding it in a
2641
subclass will have no effect.
2644
InterRepository._assert_same_model(source, target)
2646
except errors.IncompatibleRepositories, e:
2650
def _assert_same_model(source, target):
2651
"""Raise an exception if two repositories do not use the same model.
2653
if source.supports_rich_root() != target.supports_rich_root():
2654
raise errors.IncompatibleRepositories(source, target,
2655
"different rich-root support")
2656
if source._serializer != target._serializer:
2657
raise errors.IncompatibleRepositories(source, target,
2658
"different serializers")
2661
class InterSameDataRepository(InterRepository):
2662
"""Code for converting between repositories that represent the same data.
2664
Data format and model must match for this to work.
2668
def _get_repo_format_to_test(self):
2669
"""Repository format for testing with.
2671
InterSameData can pull from subtree to subtree and from non-subtree to
2672
non-subtree, so we test this with the richest repository format.
2674
from bzrlib.repofmt import knitrepo
2675
return knitrepo.RepositoryFormatKnit3()
2678
def is_compatible(source, target):
2679
return InterRepository._same_model(source, target)
2682
def copy_content(self, revision_id=None):
2683
"""Make a complete copy of the content in self into destination.
2685
This copies both the repository's revision data, and configuration information
2686
such as the make_working_trees setting.
2688
This is a destructive operation! Do not use it on existing
2691
:param revision_id: Only copy the content needed to construct
2692
revision_id and its parents.
2695
self.target.set_make_working_trees(self.source.make_working_trees())
2696
except NotImplementedError:
2698
# but don't bother fetching if we have the needed data now.
2699
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
2700
self.target.has_revision(revision_id)):
2702
self.target.fetch(self.source, revision_id=revision_id)
2705
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2706
"""See InterRepository.fetch()."""
2707
from bzrlib.fetch import RepoFetcher
2708
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2709
self.source, self.source._format, self.target,
2710
self.target._format)
2711
f = RepoFetcher(to_repository=self.target,
2712
from_repository=self.source,
2713
last_revision=revision_id,
2714
pb=pb, find_ghosts=find_ghosts)
2715
return f.count_copied, f.failed_revisions
2718
class InterWeaveRepo(InterSameDataRepository):
2719
"""Optimised code paths between Weave based repositories.
2721
This should be in bzrlib/repofmt/weaverepo.py but we have not yet
2722
implemented lazy inter-object optimisation.
2726
def _get_repo_format_to_test(self):
2727
from bzrlib.repofmt import weaverepo
2728
return weaverepo.RepositoryFormat7()
1607
2731
def is_compatible(source, target):
1729
2855
could lead to confusing results, and there is no need to be
1730
2856
overly general.
2858
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit
1733
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1734
isinstance(target._format, (RepositoryFormatKnit1)))
2860
are_knits = (isinstance(source._format, RepositoryFormatKnit) and
2861
isinstance(target._format, RepositoryFormatKnit))
1735
2862
except AttributeError:
2864
return are_knits and InterRepository._same_model(source, target)
1738
2866
@needs_write_lock
1739
def fetch(self, revision_id=None, pb=None):
2867
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
1740
2868
"""See InterRepository.fetch()."""
1741
from bzrlib.fetch import KnitRepoFetcher
2869
from bzrlib.fetch import RepoFetcher
1742
2870
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1743
2871
self.source, self.source._format, self.target, self.target._format)
1744
f = KnitRepoFetcher(to_repository=self.target,
2872
f = RepoFetcher(to_repository=self.target,
1745
2873
from_repository=self.source,
1746
2874
last_revision=revision_id,
2875
pb=pb, find_ghosts=find_ghosts)
1748
2876
return f.count_copied, f.failed_revisions
1750
2878
@needs_read_lock
1751
def missing_revision_ids(self, revision_id=None):
2879
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
1752
2880
"""See InterRepository.missing_revision_ids()."""
1753
2881
if revision_id is not None:
1754
2882
source_ids = self.source.get_ancestry(revision_id)
1755
assert source_ids[0] == None
2883
if source_ids[0] is not None:
2884
raise AssertionError()
1756
2885
source_ids.pop(0)
1758
source_ids = self.source._all_possible_ids()
2887
source_ids = self.source.all_revision_ids()
1759
2888
source_ids_set = set(source_ids)
1760
2889
# source_ids is the worst possible case we may need to pull.
1761
2890
# now we want to filter source_ids against what we actually
1762
2891
# have in target, but don't try to check for existence where we know
1763
2892
# we do not have a revision as that would be pointless.
1764
target_ids = set(self.target._all_possible_ids())
2893
target_ids = set(self.target.all_revision_ids())
1765
2894
possibly_present_revisions = target_ids.intersection(source_ids_set)
1766
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
2895
actually_present_revisions = set(
2896
self.target._eliminate_revisions_not_present(possibly_present_revisions))
1767
2897
required_revisions = source_ids_set.difference(actually_present_revisions)
1768
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1769
2898
if revision_id is not None:
1770
2899
# we used get_ancestry to determine source_ids then we are assured all
1771
2900
# revisions referenced are present as they are installed in topological order.
1772
2901
# and the tip revision was validated by get_ancestry.
1773
return required_topo_revisions
2902
result_set = required_revisions
1775
2904
# if we just grabbed the possibly available ids, then
1776
2905
# we only have an estimate of whats available and need to validate
1777
2906
# that against the revision records.
1778
return self.source._eliminate_revisions_not_present(required_topo_revisions)
2908
self.source._eliminate_revisions_not_present(required_revisions))
2909
return self.source.revision_ids_to_search_result(result_set)
2912
class InterPackRepo(InterSameDataRepository):
2913
"""Optimised code paths between Pack based repositories."""
2916
def _get_repo_format_to_test(self):
2917
from bzrlib.repofmt import pack_repo
2918
return pack_repo.RepositoryFormatKnitPack1()
2921
def is_compatible(source, target):
2922
"""Be compatible with known Pack formats.
2924
We don't test for the stores being of specific types because that
2925
could lead to confusing results, and there is no need to be
2928
from bzrlib.repofmt.pack_repo import RepositoryFormatPack
2930
are_packs = (isinstance(source._format, RepositoryFormatPack) and
2931
isinstance(target._format, RepositoryFormatPack))
2932
except AttributeError:
2934
return are_packs and InterRepository._same_model(source, target)
2937
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2938
"""See InterRepository.fetch()."""
2939
if (len(self.source._fallback_repositories) > 0 or
2940
len(self.target._fallback_repositories) > 0):
2941
# The pack layer is not aware of fallback repositories, so when
2942
# fetching from a stacked repository or into a stacked repository
2943
# we use the generic fetch logic which uses the VersionedFiles
2944
# attributes on repository.
2945
from bzrlib.fetch import RepoFetcher
2946
fetcher = RepoFetcher(self.target, self.source, revision_id,
2948
return fetcher.count_copied, fetcher.failed_revisions
2949
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2950
self.source, self.source._format, self.target, self.target._format)
2951
self.count_copied = 0
2952
if revision_id is None:
2954
# everything to do - use pack logic
2955
# to fetch from all packs to one without
2956
# inventory parsing etc, IFF nothing to be copied is in the target.
2958
source_revision_ids = frozenset(self.source.all_revision_ids())
2959
revision_ids = source_revision_ids - \
2960
frozenset(self.target_get_parent_map(source_revision_ids))
2961
revision_keys = [(revid,) for revid in revision_ids]
2962
target_pack_collection = self._get_target_pack_collection()
2963
index = target_pack_collection.revision_index.combined_index
2964
present_revision_ids = set(item[1][0] for item in
2965
index.iter_entries(revision_keys))
2966
revision_ids = set(revision_ids) - present_revision_ids
2967
# implementing the TODO will involve:
2968
# - detecting when all of a pack is selected
2969
# - avoiding as much as possible pre-selection, so the
2970
# more-core routines such as create_pack_from_packs can filter in
2971
# a just-in-time fashion. (though having a HEADS list on a
2972
# repository might make this a lot easier, because we could
2973
# sensibly detect 'new revisions' without doing a full index scan.
2974
elif _mod_revision.is_null(revision_id):
2979
revision_ids = self.search_missing_revision_ids(revision_id,
2980
find_ghosts=find_ghosts).get_keys()
2981
except errors.NoSuchRevision:
2982
raise errors.InstallFailed([revision_id])
2983
if len(revision_ids) == 0:
2985
return self._pack(self.source, self.target, revision_ids)
2987
def _pack(self, source, target, revision_ids):
2988
from bzrlib.repofmt.pack_repo import Packer
2989
target_pack_collection = self._get_target_pack_collection()
2990
packs = source._pack_collection.all_packs()
2991
pack = Packer(target_pack_collection, packs, '.fetch',
2992
revision_ids).pack()
2993
if pack is not None:
2994
target_pack_collection._save_pack_names()
2995
copied_revs = pack.get_revision_count()
2996
# Trigger an autopack. This may duplicate effort as we've just done
2997
# a pack creation, but for now it is simpler to think about as
2998
# 'upload data, then repack if needed'.
3000
return (copied_revs, [])
3004
def _autopack(self):
3005
self.target._pack_collection.autopack()
3007
def _get_target_pack_collection(self):
3008
return self.target._pack_collection
3011
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
3012
"""See InterRepository.missing_revision_ids().
3014
:param find_ghosts: Find ghosts throughout the ancestry of
3017
if not find_ghosts and revision_id is not None:
3018
return self._walk_to_common_revisions([revision_id])
3019
elif revision_id is not None:
3020
# Find ghosts: search for revisions pointing from one repository to
3021
# the other, and vice versa, anywhere in the history of revision_id.
3022
graph = self.target_get_graph(other_repository=self.source)
3023
searcher = graph._make_breadth_first_searcher([revision_id])
3027
next_revs, ghosts = searcher.next_with_ghosts()
3028
except StopIteration:
3030
if revision_id in ghosts:
3031
raise errors.NoSuchRevision(self.source, revision_id)
3032
found_ids.update(next_revs)
3033
found_ids.update(ghosts)
3034
found_ids = frozenset(found_ids)
3035
# Double query here: should be able to avoid this by changing the
3036
# graph api further.
3037
result_set = found_ids - frozenset(
3038
self.target_get_parent_map(found_ids))
3040
source_ids = self.source.all_revision_ids()
3041
# source_ids is the worst possible case we may need to pull.
3042
# now we want to filter source_ids against what we actually
3043
# have in target, but don't try to check for existence where we know
3044
# we do not have a revision as that would be pointless.
3045
target_ids = set(self.target.all_revision_ids())
3046
result_set = set(source_ids).difference(target_ids)
3047
return self.source.revision_ids_to_search_result(result_set)
3050
class InterModel1and2(InterRepository):
3053
def _get_repo_format_to_test(self):
3057
def is_compatible(source, target):
3058
if not source.supports_rich_root() and target.supports_rich_root():
3064
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3065
"""See InterRepository.fetch()."""
3066
from bzrlib.fetch import Model1toKnit2Fetcher
3067
f = Model1toKnit2Fetcher(to_repository=self.target,
3068
from_repository=self.source,
3069
last_revision=revision_id,
3070
pb=pb, find_ghosts=find_ghosts)
3071
return f.count_copied, f.failed_revisions
3074
def copy_content(self, revision_id=None):
3075
"""Make a complete copy of the content in self into destination.
3077
This is a destructive operation! Do not use it on existing
3080
:param revision_id: Only copy the content needed to construct
3081
revision_id and its parents.
3084
self.target.set_make_working_trees(self.source.make_working_trees())
3085
except NotImplementedError:
3087
# but don't bother fetching if we have the needed data now.
3088
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
3089
self.target.has_revision(revision_id)):
3091
self.target.fetch(self.source, revision_id=revision_id)
3094
class InterKnit1and2(InterKnitRepo):
3097
def _get_repo_format_to_test(self):
3101
def is_compatible(source, target):
3102
"""Be compatible with Knit1 source and Knit3 target"""
3104
from bzrlib.repofmt.knitrepo import (
3105
RepositoryFormatKnit1,
3106
RepositoryFormatKnit3,
3108
from bzrlib.repofmt.pack_repo import (
3109
RepositoryFormatKnitPack1,
3110
RepositoryFormatKnitPack3,
3111
RepositoryFormatKnitPack4,
3112
RepositoryFormatKnitPack5,
3113
RepositoryFormatKnitPack5RichRoot,
3114
RepositoryFormatKnitPack6,
3115
RepositoryFormatKnitPack6RichRoot,
3116
RepositoryFormatPackDevelopment2,
3117
RepositoryFormatPackDevelopment2Subtree,
3120
RepositoryFormatKnit1, # no rr, no subtree
3121
RepositoryFormatKnitPack1, # no rr, no subtree
3122
RepositoryFormatPackDevelopment2, # no rr, no subtree
3123
RepositoryFormatKnitPack5, # no rr, no subtree
3124
RepositoryFormatKnitPack6, # no rr, no subtree
3127
RepositoryFormatKnit3, # rr, subtree
3128
RepositoryFormatKnitPack3, # rr, subtree
3129
RepositoryFormatKnitPack4, # rr, no subtree
3130
RepositoryFormatKnitPack5RichRoot,# rr, no subtree
3131
RepositoryFormatKnitPack6RichRoot,# rr, no subtree
3132
RepositoryFormatPackDevelopment2Subtree, # rr, subtree
3134
for format in norichroot:
3135
if format.rich_root_data:
3136
raise AssertionError('Format %s is a rich-root format'
3137
' but is included in the non-rich-root list'
3139
for format in richroot:
3140
if not format.rich_root_data:
3141
raise AssertionError('Format %s is not a rich-root format'
3142
' but is included in the rich-root list'
3144
# TODO: One alternative is to just check format.rich_root_data,
3145
# instead of keeping membership lists. However, the formats
3146
# *also* have to use the same 'Knit' style of storage
3147
# (line-deltas, fulltexts, etc.)
3148
return (isinstance(source._format, norichroot) and
3149
isinstance(target._format, richroot))
3150
except AttributeError:
3154
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3155
"""See InterRepository.fetch()."""
3156
from bzrlib.fetch import Knit1to2Fetcher
3157
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
3158
self.source, self.source._format, self.target,
3159
self.target._format)
3160
f = Knit1to2Fetcher(to_repository=self.target,
3161
from_repository=self.source,
3162
last_revision=revision_id,
3163
pb=pb, find_ghosts=find_ghosts)
3164
return f.count_copied, f.failed_revisions
3167
class InterDifferingSerializer(InterKnitRepo):
3170
def _get_repo_format_to_test(self):
3174
def is_compatible(source, target):
3175
"""Be compatible with Knit2 source and Knit3 target"""
3176
if source.supports_rich_root() != target.supports_rich_root():
3178
# Ideally, we'd support fetching if the source had no tree references
3179
# even if it supported them...
3180
if (getattr(source, '_format.supports_tree_reference', False) and
3181
not getattr(target, '_format.supports_tree_reference', False)):
3185
def _fetch_batch(self, revision_ids, basis_id, basis_tree):
3186
"""Fetch across a few revisions.
3188
:param revision_ids: The revisions to copy
3189
:param basis_id: The revision_id of basis_tree
3190
:param basis_tree: A tree that is not in revision_ids which should
3191
already exist in the target.
3192
:return: (basis_id, basis_tree) A new basis to use now that these trees
3195
# Walk though all revisions; get inventory deltas, copy referenced
3196
# texts that delta references, insert the delta, revision and
3200
pending_revisions = []
3201
for tree in self.source.revision_trees(revision_ids):
3202
current_revision_id = tree.get_revision_id()
3203
delta = tree.inventory._make_delta(basis_tree.inventory)
3204
for old_path, new_path, file_id, entry in delta:
3205
if new_path is not None:
3206
if not (new_path or self.target.supports_rich_root()):
3207
# We leave the inventory delta in, because that
3208
# will have the deserialised inventory root
3212
# "if entry.revision == current_revision_id" ?
3213
if entry.revision == current_revision_id:
3214
text_keys.add((file_id, entry.revision))
3215
revision = self.source.get_revision(current_revision_id)
3216
pending_deltas.append((basis_id, delta,
3217
current_revision_id, revision.parent_ids))
3218
pending_revisions.append(revision)
3219
basis_id = current_revision_id
3222
from_texts = self.source.texts
3223
to_texts = self.target.texts
3224
to_texts.insert_record_stream(from_texts.get_record_stream(
3225
text_keys, self.target._fetch_order,
3226
not self.target._fetch_uses_deltas))
3228
for delta in pending_deltas:
3229
self.target.add_inventory_by_delta(*delta)
3230
# insert signatures and revisions
3231
for revision in pending_revisions:
3233
signature = self.source.get_signature_text(
3234
revision.revision_id)
3235
self.target.add_signature_text(revision.revision_id,
3237
except errors.NoSuchRevision:
3239
self.target.add_revision(revision.revision_id, revision)
3240
return basis_id, basis_tree
3242
def _fetch_all_revisions(self, revision_ids, pb):
3243
"""Fetch everything for the list of revisions.
3245
:param revision_ids: The list of revisions to fetch. Must be in
3247
:param pb: A ProgressBar
3250
basis_id, basis_tree = self._get_basis(revision_ids[0])
3252
for offset in range(0, len(revision_ids), batch_size):
3253
self.target.start_write_group()
3255
pb.update('Transferring revisions', offset,
3257
batch = revision_ids[offset:offset+batch_size]
3258
basis_id, basis_tree = self._fetch_batch(batch,
3259
basis_id, basis_tree)
3261
self.target.abort_write_group()
3264
self.target.commit_write_group()
3265
pb.update('Transferring revisions', len(revision_ids),
3269
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3270
"""See InterRepository.fetch()."""
3271
revision_ids = self.target.search_missing_revision_ids(self.source,
3272
revision_id, find_ghosts=find_ghosts).get_keys()
3273
if not revision_ids:
3275
revision_ids = tsort.topo_sort(
3276
self.source.get_graph().get_parent_map(revision_ids))
3278
my_pb = ui.ui_factory.nested_progress_bar()
3283
self._fetch_all_revisions(revision_ids, pb)
3285
if my_pb is not None:
3287
return len(revision_ids), 0
3289
def _get_basis(self, first_revision_id):
3290
"""Get a revision and tree which exists in the target.
3292
This assumes that first_revision_id is selected for transmission
3293
because all other ancestors are already present. If we can't find an
3294
ancestor we fall back to NULL_REVISION since we know that is safe.
3296
:return: (basis_id, basis_tree)
3298
first_rev = self.source.get_revision(first_revision_id)
3300
basis_id = first_rev.parent_ids[0]
3301
# only valid as a basis if the target has it
3302
self.target.get_revision(basis_id)
3303
# Try to get a basis tree - if its a ghost it will hit the
3304
# NoSuchRevision case.
3305
basis_tree = self.source.revision_tree(basis_id)
3306
except (IndexError, errors.NoSuchRevision):
3307
basis_id = _mod_revision.NULL_REVISION
3308
basis_tree = self.source.revision_tree(basis_id)
3309
return basis_id, basis_tree
3312
class InterOtherToRemote(InterRepository):
3313
"""An InterRepository that simply delegates to the 'real' InterRepository
3314
calculated for (source, target._real_repository).
3317
_walk_to_common_revisions_batch_size = 50
3319
def __init__(self, source, target):
3320
InterRepository.__init__(self, source, target)
3321
self._real_inter = None
3324
def is_compatible(source, target):
3325
if isinstance(target, remote.RemoteRepository):
3329
def _ensure_real_inter(self):
3330
if self._real_inter is None:
3331
self.target._ensure_real()
3332
real_target = self.target._real_repository
3333
self._real_inter = InterRepository.get(self.source, real_target)
3334
# Make _real_inter use the RemoteRepository for get_parent_map
3335
self._real_inter.target_get_graph = self.target.get_graph
3336
self._real_inter.target_get_parent_map = self.target.get_parent_map
3338
def copy_content(self, revision_id=None):
3339
self._ensure_real_inter()
3340
self._real_inter.copy_content(revision_id=revision_id)
3342
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3343
self._ensure_real_inter()
3344
return self._real_inter.fetch(revision_id=revision_id, pb=pb,
3345
find_ghosts=find_ghosts)
3348
def _get_repo_format_to_test(self):
3352
class InterRemoteToOther(InterRepository):
3354
def __init__(self, source, target):
3355
InterRepository.__init__(self, source, target)
3356
self._real_inter = None
3359
def is_compatible(source, target):
3360
if not isinstance(source, remote.RemoteRepository):
3362
# Is source's model compatible with target's model?
3363
source._ensure_real()
3364
real_source = source._real_repository
3365
if isinstance(real_source, remote.RemoteRepository):
3366
raise NotImplementedError(
3367
"We don't support remote repos backed by remote repos yet.")
3368
return InterRepository._same_model(real_source, target)
3370
def _ensure_real_inter(self):
3371
if self._real_inter is None:
3372
self.source._ensure_real()
3373
real_source = self.source._real_repository
3374
self._real_inter = InterRepository.get(real_source, self.target)
3376
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3377
self._ensure_real_inter()
3378
return self._real_inter.fetch(revision_id=revision_id, pb=pb,
3379
find_ghosts=find_ghosts)
3381
def copy_content(self, revision_id=None):
3382
self._ensure_real_inter()
3383
self._real_inter.copy_content(revision_id=revision_id)
3386
def _get_repo_format_to_test(self):
3391
class InterPackToRemotePack(InterPackRepo):
3392
"""A specialisation of InterPackRepo for a target that is a
3395
This will use the get_parent_map RPC rather than plain readvs, and also
3396
uses an RPC for autopacking.
3399
_walk_to_common_revisions_batch_size = 50
3402
def is_compatible(source, target):
3403
from bzrlib.repofmt.pack_repo import RepositoryFormatPack
3404
if isinstance(source._format, RepositoryFormatPack):
3405
if isinstance(target, remote.RemoteRepository):
3406
target._ensure_real()
3407
if isinstance(target._real_repository._format,
3408
RepositoryFormatPack):
3409
if InterRepository._same_model(source, target):
3413
def _autopack(self):
3414
self.target.autopack()
3416
def _get_target_pack_collection(self):
3417
return self.target._real_repository._pack_collection
3420
def _get_repo_format_to_test(self):
3424
InterRepository.register_optimiser(InterDifferingSerializer)
3425
InterRepository.register_optimiser(InterSameDataRepository)
1780
3426
InterRepository.register_optimiser(InterWeaveRepo)
1781
3427
InterRepository.register_optimiser(InterKnitRepo)
1784
class RepositoryTestProviderAdapter(object):
1785
"""A tool to generate a suite testing multiple repository formats at once.
1787
This is done by copying the test once for each transport and injecting
1788
the transport_server, transport_readonly_server, and bzrdir_format and
1789
repository_format classes into each copy. Each copy is also given a new id()
1790
to make it easy to identify.
1793
def __init__(self, transport_server, transport_readonly_server, formats):
1794
self._transport_server = transport_server
1795
self._transport_readonly_server = transport_readonly_server
1796
self._formats = formats
1798
def adapt(self, test):
1799
result = TestSuite()
1800
for repository_format, bzrdir_format in self._formats:
1801
new_test = deepcopy(test)
1802
new_test.transport_server = self._transport_server
1803
new_test.transport_readonly_server = self._transport_readonly_server
1804
new_test.bzrdir_format = bzrdir_format
1805
new_test.repository_format = repository_format
1806
def make_new_test_id():
1807
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1808
return lambda: new_id
1809
new_test.id = make_new_test_id()
1810
result.addTest(new_test)
1814
class InterRepositoryTestProviderAdapter(object):
1815
"""A tool to generate a suite testing multiple inter repository formats.
1817
This is done by copying the test once for each interrepo provider and injecting
1818
the transport_server, transport_readonly_server, repository_format and
1819
repository_to_format classes into each copy.
1820
Each copy is also given a new id() to make it easy to identify.
1823
def __init__(self, transport_server, transport_readonly_server, formats):
1824
self._transport_server = transport_server
1825
self._transport_readonly_server = transport_readonly_server
1826
self._formats = formats
1828
def adapt(self, test):
1829
result = TestSuite()
1830
for interrepo_class, repository_format, repository_format_to in self._formats:
1831
new_test = deepcopy(test)
1832
new_test.transport_server = self._transport_server
1833
new_test.transport_readonly_server = self._transport_readonly_server
1834
new_test.interrepo_class = interrepo_class
1835
new_test.repository_format = repository_format
1836
new_test.repository_format_to = repository_format_to
1837
def make_new_test_id():
1838
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1839
return lambda: new_id
1840
new_test.id = make_new_test_id()
1841
result.addTest(new_test)
1845
def default_test_list():
1846
"""Generate the default list of interrepo permutations to test."""
1848
# test the default InterRepository between format 6 and the current
1850
# XXX: robertc 20060220 reinstate this when there are two supported
1851
# formats which do not have an optimal code path between them.
1852
result.append((InterRepository,
1853
RepositoryFormat6(),
1854
RepositoryFormatKnit1()))
1855
for optimiser in InterRepository._optimisers:
1856
result.append((optimiser,
1857
optimiser._matching_repo_format,
1858
optimiser._matching_repo_format
1860
# if there are specific combinations we want to use, we can add them
3428
InterRepository.register_optimiser(InterModel1and2)
3429
InterRepository.register_optimiser(InterKnit1and2)
3430
InterRepository.register_optimiser(InterPackRepo)
3431
InterRepository.register_optimiser(InterOtherToRemote)
3432
InterRepository.register_optimiser(InterRemoteToOther)
3433
InterRepository.register_optimiser(InterPackToRemotePack)
1865
3436
class CopyConverter(object):
1913
3485
self.pb.update(message, self.count, self.total)
1916
class CommitBuilder(object):
1917
"""Provides an interface to build up a commit.
1919
This allows describing a tree to be committed without needing to
1920
know the internals of the format of the repository.
1922
def __init__(self, repository, parents, config, timestamp=None,
1923
timezone=None, committer=None, revprops=None,
1925
"""Initiate a CommitBuilder.
1927
:param repository: Repository to commit to.
1928
:param parents: Revision ids of the parents of the new revision.
1929
:param config: Configuration to use.
1930
:param timestamp: Optional timestamp recorded for commit.
1931
:param timezone: Optional timezone for timestamp.
1932
:param committer: Optional committer to set for commit.
1933
:param revprops: Optional dictionary of revision properties.
1934
:param revision_id: Optional revision id.
1936
self._config = config
1938
if committer is None:
1939
self._committer = self._config.username()
1941
assert isinstance(committer, basestring), type(committer)
1942
self._committer = committer
1944
self.new_inventory = Inventory()
1945
self._new_revision_id = revision_id
1946
self.parents = parents
1947
self.repository = repository
1950
if revprops is not None:
1951
self._revprops.update(revprops)
1953
if timestamp is None:
1954
self._timestamp = time.time()
1956
self._timestamp = long(timestamp)
1958
if timezone is None:
1959
self._timezone = local_time_offset()
1961
self._timezone = int(timezone)
1963
self._generate_revision_if_needed()
1965
def commit(self, message):
1966
"""Make the actual commit.
1968
:return: The revision id of the recorded revision.
1970
rev = Revision(timestamp=self._timestamp,
1971
timezone=self._timezone,
1972
committer=self._committer,
1974
inventory_sha1=self.inv_sha1,
1975
revision_id=self._new_revision_id,
1976
properties=self._revprops)
1977
rev.parent_ids = self.parents
1978
self.repository.add_revision(self._new_revision_id, rev,
1979
self.new_inventory, self._config)
1980
return self._new_revision_id
1982
def finish_inventory(self):
1983
"""Tell the builder that the inventory is finished."""
1984
self.new_inventory.revision_id = self._new_revision_id
1985
self.inv_sha1 = self.repository.add_inventory(
1986
self._new_revision_id,
1991
def _gen_revision_id(self):
1992
"""Return new revision-id."""
1993
s = '%s-%s-' % (self._config.user_email(),
1994
compact_date(self._timestamp))
1995
s += hexlify(rand_bytes(8))
1998
def _generate_revision_if_needed(self):
1999
"""Create a revision id if None was supplied.
2001
If the repository can not support user-specified revision ids
2002
they should override this function and raise UnsupportedOperation
2003
if _new_revision_id is not None.
2005
:raises: UnsupportedOperation
2007
if self._new_revision_id is None:
2008
self._new_revision_id = self._gen_revision_id()
2010
def record_entry_contents(self, ie, parent_invs, path, tree):
2011
"""Record the content of ie from tree into the commit if needed.
2013
:param ie: An inventory entry present in the commit.
2014
:param parent_invs: The inventories of the parent revisions of the
2016
:param path: The path the entry is at in the tree.
2017
:param tree: The tree which contains this entry and should be used to
2020
self.new_inventory.add(ie)
2022
# ie.revision is always None if the InventoryEntry is considered
2023
# for committing. ie.snapshot will record the correct revision
2024
# which may be the sole parent if it is untouched.
2025
if ie.revision is not None:
2027
previous_entries = ie.find_previous_heads(
2029
self.repository.weave_store,
2030
self.repository.get_transaction())
2031
# we are creating a new revision for ie in the history store
2033
ie.snapshot(self._new_revision_id, path, previous_entries, tree, self)
2035
def modified_directory(self, file_id, file_parents):
2036
"""Record the presence of a symbolic link.
2038
:param file_id: The file_id of the link to record.
2039
:param file_parents: The per-file parent revision ids.
2041
self._add_text_to_weave(file_id, [], file_parents.keys())
2043
def modified_file_text(self, file_id, file_parents,
2044
get_content_byte_lines, text_sha1=None,
2046
"""Record the text of file file_id
2048
:param file_id: The file_id of the file to record the text of.
2049
:param file_parents: The per-file parent revision ids.
2050
:param get_content_byte_lines: A callable which will return the byte
2052
:param text_sha1: Optional SHA1 of the file contents.
2053
:param text_size: Optional size of the file contents.
2055
mutter('storing text of file {%s} in revision {%s} into %r',
2056
file_id, self._new_revision_id, self.repository.weave_store)
2057
# special case to avoid diffing on renames or
2059
if (len(file_parents) == 1
2060
and text_sha1 == file_parents.values()[0].text_sha1
2061
and text_size == file_parents.values()[0].text_size):
2062
previous_ie = file_parents.values()[0]
2063
versionedfile = self.repository.weave_store.get_weave(file_id,
2064
self.repository.get_transaction())
2065
versionedfile.clone_text(self._new_revision_id,
2066
previous_ie.revision, file_parents.keys())
2067
return text_sha1, text_size
2069
new_lines = get_content_byte_lines()
2070
# TODO: Rather than invoking sha_strings here, _add_text_to_weave
2071
# should return the SHA1 and size
2072
self._add_text_to_weave(file_id, new_lines, file_parents.keys())
2073
return bzrlib.osutils.sha_strings(new_lines), \
2074
sum(map(len, new_lines))
2076
def modified_link(self, file_id, file_parents, link_target):
2077
"""Record the presence of a symbolic link.
2079
:param file_id: The file_id of the link to record.
2080
:param file_parents: The per-file parent revision ids.
2081
:param link_target: Target location of this link.
2083
self._add_text_to_weave(file_id, [], file_parents.keys())
2085
def _add_text_to_weave(self, file_id, new_lines, parents):
2086
versionedfile = self.repository.weave_store.get_weave_or_empty(
2087
file_id, self.repository.get_transaction())
2088
versionedfile.add_lines(self._new_revision_id, parents, new_lines)
2089
versionedfile.clear_cache()
2092
# Copied from xml.sax.saxutils
3497
def _unescaper(match, _map=_unescape_map):
3498
code = match.group(1)
3502
if not code.startswith('#'):
3504
return unichr(int(code[1:])).encode('utf8')
2093
3510
def _unescape_xml(data):
2094
"""Unescape &, <, and > in a string of data.
2096
data = data.replace("<", "<")
2097
data = data.replace(">", ">")
2098
# must do ampersand last
2099
return data.replace("&", "&")
3511
"""Unescape predefined XML entities in a string of data."""
3513
if _unescape_re is None:
3514
_unescape_re = re.compile('\&([^;]*);')
3515
return _unescape_re.sub(_unescaper, data)
3518
class _VersionedFileChecker(object):
3520
def __init__(self, repository):
3521
self.repository = repository
3522
self.text_index = self.repository._generate_text_key_index()
3524
def calculate_file_version_parents(self, text_key):
3525
"""Calculate the correct parents for a file version according to
3528
parent_keys = self.text_index[text_key]
3529
if parent_keys == [_mod_revision.NULL_REVISION]:
3531
return tuple(parent_keys)
3533
def check_file_version_parents(self, texts, progress_bar=None):
3534
"""Check the parents stored in a versioned file are correct.
3536
It also detects file versions that are not referenced by their
3537
corresponding revision's inventory.
3539
:returns: A tuple of (wrong_parents, dangling_file_versions).
3540
wrong_parents is a dict mapping {revision_id: (stored_parents,
3541
correct_parents)} for each revision_id where the stored parents
3542
are not correct. dangling_file_versions is a set of (file_id,
3543
revision_id) tuples for versions that are present in this versioned
3544
file, but not used by the corresponding inventory.
3547
self.file_ids = set([file_id for file_id, _ in
3548
self.text_index.iterkeys()])
3549
# text keys is now grouped by file_id
3550
n_weaves = len(self.file_ids)
3551
files_in_revisions = {}
3552
revisions_of_files = {}
3553
n_versions = len(self.text_index)
3554
progress_bar.update('loading text store', 0, n_versions)
3555
parent_map = self.repository.texts.get_parent_map(self.text_index)
3556
# On unlistable transports this could well be empty/error...
3557
text_keys = self.repository.texts.keys()
3558
unused_keys = frozenset(text_keys) - set(self.text_index)
3559
for num, key in enumerate(self.text_index.iterkeys()):
3560
if progress_bar is not None:
3561
progress_bar.update('checking text graph', num, n_versions)
3562
correct_parents = self.calculate_file_version_parents(key)
3564
knit_parents = parent_map[key]
3565
except errors.RevisionNotPresent:
3568
if correct_parents != knit_parents:
3569
wrong_parents[key] = (knit_parents, correct_parents)
3570
return wrong_parents, unused_keys
3573
def _old_get_graph(repository, revision_id):
3574
"""DO NOT USE. That is all. I'm serious."""
3575
graph = repository.get_graph()
3576
revision_graph = dict(((key, value) for key, value in
3577
graph.iter_ancestry([revision_id]) if value is not None))
3578
return _strip_NULL_ghosts(revision_graph)
3581
def _strip_NULL_ghosts(revision_graph):
3582
"""Also don't use this. more compatibility code for unmigrated clients."""
3583
# Filter ghosts, and null:
3584
if _mod_revision.NULL_REVISION in revision_graph:
3585
del revision_graph[_mod_revision.NULL_REVISION]
3586
for key, parents in revision_graph.items():
3587
revision_graph[key] = tuple(parent for parent in parents if parent
3589
return revision_graph