1
# Copyright (C) 2005-2011 Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17
from __future__ import absolute_import
19
from .lazy_import import lazy_import
20
lazy_import(globals(), """
29
revision as _mod_revision,
32
from breezy.bundle import serializer
33
from breezy.i18n import gettext
41
from .decorators import only_raises
42
from .inter import InterObject
43
from .lock import _RelockDebugMixin, LogicalLockResult
49
log_exception_quietly, note, mutter, mutter_callsite, warning)
52
# Old formats display a warning, but only once
53
_deprecation_warning_done = False
56
class IsInWriteGroupError(errors.InternalBzrError):
58
_fmt = "May not refresh_data of repo %(repo)s while in a write group."
60
def __init__(self, repo):
61
errors.InternalBzrError.__init__(self, repo=repo)
64
class CannotSetRevisionId(errors.BzrError):
66
_fmt = "Repository format does not support setting revision ids."
69
class CommitBuilder(object):
70
"""Provides an interface to build up a commit.
72
This allows describing a tree to be committed without needing to
73
know the internals of the format of the repository.
76
# all clients should supply tree roots.
77
record_root_entry = True
78
# whether this commit builder will automatically update the branch that is
80
updates_branch = False
82
def __init__(self, repository, parents, config_stack, timestamp=None,
83
timezone=None, committer=None, revprops=None,
84
revision_id=None, lossy=False):
85
"""Initiate a CommitBuilder.
87
:param repository: Repository to commit to.
88
:param parents: Revision ids of the parents of the new revision.
89
:param timestamp: Optional timestamp recorded for commit.
90
:param timezone: Optional timezone for timestamp.
91
:param committer: Optional committer to set for commit.
92
:param revprops: Optional dictionary of revision properties.
93
:param revision_id: Optional revision id.
94
:param lossy: Whether to discard data that can not be natively
95
represented, when pushing to a foreign VCS
97
self._config_stack = config_stack
100
if committer is None:
101
self._committer = self._config_stack.get('email')
102
elif not isinstance(committer, text_type):
103
self._committer = committer.decode() # throw if non-ascii
105
self._committer = committer
107
self.parents = parents
108
self.repository = repository
111
if revprops is not None:
112
self._validate_revprops(revprops)
113
self._revprops.update(revprops)
115
if timestamp is None:
116
timestamp = time.time()
117
# Restrict resolution to 1ms
118
self._timestamp = round(timestamp, 3)
121
self._timezone = osutils.local_time_offset()
123
self._timezone = int(timezone)
125
self._generate_revision_if_needed(revision_id)
127
def any_changes(self):
128
"""Return True if any entries were changed.
130
This includes merge-only changes. It is the core for the --unchanged
133
:return: True if any changes have occured.
135
raise NotImplementedError(self.any_changes)
137
def _validate_unicode_text(self, text, context):
138
"""Verify things like commit messages don't have bogus characters."""
139
# TODO(jelmer): Make this repository-format specific
141
raise ValueError('Invalid value for %s: %r' % (context, text))
143
def _validate_revprops(self, revprops):
144
for key, value in viewitems(revprops):
145
# We know that the XML serializers do not round trip '\r'
146
# correctly, so refuse to accept them
147
if not isinstance(value, (text_type, str)):
148
raise ValueError('revision property (%s) is not a valid'
149
' (unicode) string: %r' % (key, value))
150
# TODO(jelmer): Make this repository-format specific
151
self._validate_unicode_text(value,
152
'revision property (%s)' % (key,))
154
def commit(self, message):
155
"""Make the actual commit.
157
:return: The revision id of the recorded revision.
159
raise NotImplementedError(self.commit)
162
"""Abort the commit that is being built.
164
raise NotImplementedError(self.abort)
166
def revision_tree(self):
167
"""Return the tree that was just committed.
169
After calling commit() this can be called to get a
170
RevisionTree representing the newly committed tree. This is
171
preferred to calling Repository.revision_tree() because that may
172
require deserializing the inventory, while we already have a copy in
175
raise NotImplementedError(self.revision_tree)
177
def finish_inventory(self):
178
"""Tell the builder that the inventory is finished.
180
:return: The inventory id in the repository, which can be used with
181
repository.get_inventory.
183
raise NotImplementedError(self.finish_inventory)
185
def _generate_revision_if_needed(self, revision_id):
186
"""Create a revision id if None was supplied.
188
If the repository can not support user-specified revision ids
189
they should override this function and raise CannotSetRevisionId
190
if _new_revision_id is not None.
192
:raises: CannotSetRevisionId
194
if not self.repository._format.supports_setting_revision_ids:
195
if revision_id is not None:
196
raise CannotSetRevisionId()
198
if revision_id is None:
199
self._new_revision_id = self._gen_revision_id()
200
self.random_revid = True
202
self._new_revision_id = revision_id
203
self.random_revid = False
205
def record_iter_changes(self, tree, basis_revision_id, iter_changes):
206
"""Record a new tree via iter_changes.
208
:param tree: The tree to obtain text contents from for changed objects.
209
:param basis_revision_id: The revision id of the tree the iter_changes
210
has been generated against. Currently assumed to be the same
211
as self.parents[0] - if it is not, errors may occur.
212
:param iter_changes: An iter_changes iterator with the changes to apply
213
to basis_revision_id. The iterator must not include any items with
214
a current kind of None - missing items must be either filtered out
215
or errored-on beefore record_iter_changes sees the item.
216
:return: A generator of (relpath, fs_hash) tuples for use with
219
raise NotImplementedError(self.record_iter_changes)
222
class RepositoryWriteLockResult(LogicalLockResult):
223
"""The result of write locking a repository.
225
:ivar repository_token: The token obtained from the underlying lock, or
227
:ivar unlock: A callable which will unlock the lock.
230
def __init__(self, unlock, repository_token):
231
LogicalLockResult.__init__(self, unlock)
232
self.repository_token = repository_token
235
return "RepositoryWriteLockResult(%s, %s)" % (self.repository_token,
239
class WriteGroup(object):
240
"""Context manager that manages a write group.
242
Raising an exception will result in the write group being aborted.
245
def __init__(self, repository, suppress_errors=False):
246
self.repository = repository
247
self._suppress_errors = suppress_errors
250
self.repository.start_write_group()
253
def __exit__(self, exc_type, exc_val, exc_tb):
255
self.repository.abort_write_group(self._suppress_errors)
258
self.repository.commit_write_group()
261
######################################################################
265
class Repository(controldir.ControlComponent, _RelockDebugMixin):
266
"""Repository holding history for one or more branches.
268
The repository holds and retrieves historical information including
269
revisions and file history. It's normally accessed only by the Branch,
270
which views a particular line of development through that history.
272
See VersionedFileRepository in breezy.vf_repository for the
273
base class for most Bazaar repositories.
276
# Does this repository implementation support random access to
277
# items in the tree, or just bulk fetching/pushing of data?
278
supports_random_access = True
280
def abort_write_group(self, suppress_errors=False):
281
"""Commit the contents accrued within the current write group.
283
:param suppress_errors: if true, abort_write_group will catch and log
284
unexpected errors that happen during the abort, rather than
285
allowing them to propagate. Defaults to False.
287
:seealso: start_write_group.
289
if self._write_group is not self.get_transaction():
290
# has an unlock or relock occured ?
293
'(suppressed) mismatched lock context and write group. %r, %r',
294
self._write_group, self.get_transaction())
296
raise errors.BzrError(
297
'mismatched lock context and write group. %r, %r' %
298
(self._write_group, self.get_transaction()))
300
self._abort_write_group()
301
except Exception as exc:
302
self._write_group = None
303
if not suppress_errors:
305
mutter('abort_write_group failed')
306
log_exception_quietly()
307
note(gettext('brz: ERROR (ignored): %s'), exc)
308
self._write_group = None
310
def _abort_write_group(self):
311
"""Template method for per-repository write group cleanup.
313
This is called during abort before the write group is considered to be
314
finished and should cleanup any internal state accrued during the write
315
group. There is no requirement that data handed to the repository be
316
*not* made available - this is not a rollback - but neither should any
317
attempt be made to ensure that data added is fully commited. Abort is
318
invoked when an error has occured so futher disk or network operations
319
may not be possible or may error and if possible should not be
323
def add_fallback_repository(self, repository):
324
"""Add a repository to use for looking up data not held locally.
326
:param repository: A repository.
328
raise NotImplementedError(self.add_fallback_repository)
330
def _check_fallback_repository(self, repository):
331
"""Check that this repository can fallback to repository safely.
333
Raise an error if not.
335
:param repository: A repository to fallback to.
337
return InterRepository._assert_same_model(self, repository)
339
def all_revision_ids(self):
340
"""Returns a list of all the revision ids in the repository.
342
This is conceptually deprecated because code should generally work on
343
the graph reachable from a particular revision, and ignore any other
344
revisions that might be present. There is no direct replacement
347
if 'evil' in debug.debug_flags:
348
mutter_callsite(2, "all_revision_ids is linear with history.")
349
return self._all_revision_ids()
351
def _all_revision_ids(self):
352
"""Returns a list of all the revision ids in the repository.
354
These are in as much topological order as the underlying store can
357
raise NotImplementedError(self._all_revision_ids)
359
def break_lock(self):
360
"""Break a lock if one is present from another instance.
362
Uses the ui factory to ask for confirmation if the lock may be from
365
self.control_files.break_lock()
368
def create(controldir):
369
"""Construct the current default format repository in controldir."""
370
return RepositoryFormat.get_default_format().initialize(controldir)
372
def __init__(self, _format, controldir, control_files):
373
"""instantiate a Repository.
375
:param _format: The format of the repository on disk.
376
:param controldir: The ControlDir of the repository.
377
:param control_files: Control files to use for locking, etc.
379
# In the future we will have a single api for all stores for
380
# getting file texts, inventories and revisions, then
381
# this construct will accept instances of those things.
382
super(Repository, self).__init__()
383
self._format = _format
384
# the following are part of the public API for Repository:
385
self.controldir = controldir
386
self.control_files = control_files
388
self._write_group = None
389
# Additional places to query for data.
390
self._fallback_repositories = []
393
def user_transport(self):
394
return self.controldir.user_transport
397
def control_transport(self):
398
return self._transport
401
if self._fallback_repositories:
402
return '%s(%r, fallback_repositories=%r)' % (
403
self.__class__.__name__,
405
self._fallback_repositories)
407
return '%s(%r)' % (self.__class__.__name__,
410
def _has_same_fallbacks(self, other_repo):
411
"""Returns true if the repositories have the same fallbacks."""
412
my_fb = self._fallback_repositories
413
other_fb = other_repo._fallback_repositories
414
if len(my_fb) != len(other_fb):
416
for f, g in zip(my_fb, other_fb):
417
if not f.has_same_location(g):
421
def has_same_location(self, other):
422
"""Returns a boolean indicating if this repository is at the same
423
location as another repository.
425
This might return False even when two repository objects are accessing
426
the same physical repository via different URLs.
428
if self.__class__ is not other.__class__:
430
return (self.control_url == other.control_url)
432
def is_in_write_group(self):
433
"""Return True if there is an open write group.
435
:seealso: start_write_group.
437
return self._write_group is not None
440
return self.control_files.is_locked()
442
def is_write_locked(self):
443
"""Return True if this object is write locked."""
444
return self.is_locked() and self.control_files._lock_mode == 'w'
446
def lock_write(self, token=None):
447
"""Lock this repository for writing.
449
This causes caching within the repository obejct to start accumlating
450
data during reads, and allows a 'write_group' to be obtained. Write
451
groups must be used for actual data insertion.
453
A token should be passed in if you know that you have locked the object
454
some other way, and need to synchronise this object's state with that
457
XXX: this docstring is duplicated in many places, e.g. lockable_files.py
459
:param token: if this is already locked, then lock_write will fail
460
unless the token matches the existing lock.
461
:returns: a token if this instance supports tokens, otherwise None.
462
:raises TokenLockingNotSupported: when a token is given but this
463
instance doesn't support using token locks.
464
:raises MismatchedToken: if the specified token doesn't match the token
465
of the existing lock.
466
:seealso: start_write_group.
467
:return: A RepositoryWriteLockResult.
469
locked = self.is_locked()
470
token = self.control_files.lock_write(token=token)
472
self._warn_if_deprecated()
474
for repo in self._fallback_repositories:
475
# Writes don't affect fallback repos
478
return RepositoryWriteLockResult(self.unlock, token)
481
"""Lock the repository for read operations.
483
:return: An object with an unlock method which will release the lock
486
locked = self.is_locked()
487
self.control_files.lock_read()
489
self._warn_if_deprecated()
491
for repo in self._fallback_repositories:
494
return LogicalLockResult(self.unlock)
496
def get_physical_lock_status(self):
497
return self.control_files.get_physical_lock_status()
499
def leave_lock_in_place(self):
500
"""Tell this repository not to release the physical lock when this
503
If lock_write doesn't return a token, then this method is not supported.
505
self.control_files.leave_in_place()
507
def dont_leave_lock_in_place(self):
508
"""Tell this repository to release the physical lock when this
509
object is unlocked, even if it didn't originally acquire it.
511
If lock_write doesn't return a token, then this method is not supported.
513
self.control_files.dont_leave_in_place()
515
def gather_stats(self, revid=None, committers=None):
516
"""Gather statistics from a revision id.
518
:param revid: The revision id to gather statistics from, if None, then
519
no revision specific statistics are gathered.
520
:param committers: Optional parameter controlling whether to grab
521
a count of committers from the revision specific statistics.
522
:return: A dictionary of statistics. Currently this contains:
523
committers: The number of committers if requested.
524
firstrev: A tuple with timestamp, timezone for the penultimate left
525
most ancestor of revid, if revid is not the NULL_REVISION.
526
latestrev: A tuple with timestamp, timezone for revid, if revid is
527
not the NULL_REVISION.
528
revisions: The total revision count in the repository.
529
size: An estimate disk size of the repository in bytes.
531
with self.lock_read():
533
if revid and committers:
534
result['committers'] = 0
535
if revid and revid != _mod_revision.NULL_REVISION:
536
graph = self.get_graph()
538
all_committers = set()
539
revisions = [r for (r, p) in graph.iter_ancestry([revid])
540
if r != _mod_revision.NULL_REVISION]
543
# ignore the revisions in the middle - just grab first and last
544
revisions = revisions[0], revisions[-1]
545
for revision in self.get_revisions(revisions):
546
if not last_revision:
547
last_revision = revision
549
all_committers.add(revision.committer)
550
first_revision = revision
552
result['committers'] = len(all_committers)
553
result['firstrev'] = (first_revision.timestamp,
554
first_revision.timezone)
555
result['latestrev'] = (last_revision.timestamp,
556
last_revision.timezone)
559
def find_branches(self, using=False):
560
"""Find branches underneath this repository.
562
This will include branches inside other branches.
564
:param using: If True, list only branches using this repository.
566
if using and not self.is_shared():
567
return self.controldir.list_branches()
569
class Evaluator(object):
572
self.first_call = True
574
def __call__(self, controldir):
575
# On the first call, the parameter is always the controldir
576
# containing the current repo.
577
if not self.first_call:
579
repository = controldir.open_repository()
580
except errors.NoRepositoryPresent:
583
return False, ([], repository)
584
self.first_call = False
585
value = (controldir.list_branches(), None)
589
for branches, repository in controldir.ControlDir.find_controldirs(
590
self.user_transport, evaluate=Evaluator()):
591
if branches is not None:
593
if not using and repository is not None:
594
ret.extend(repository.find_branches())
597
def search_missing_revision_ids(self, other,
598
find_ghosts=True, revision_ids=None, if_present_ids=None,
600
"""Return the revision ids that other has that this does not.
602
These are returned in topological order.
604
revision_ids: only return revision ids included by revision_id.
606
with self.lock_read():
607
return InterRepository.get(other, self).search_missing_revision_ids(
608
find_ghosts=find_ghosts, revision_ids=revision_ids,
609
if_present_ids=if_present_ids, limit=limit)
613
"""Open the repository rooted at base.
615
For instance, if the repository is at URL/.bzr/repository,
616
Repository.open(URL) -> a Repository instance.
618
control = controldir.ControlDir.open(base)
619
return control.open_repository()
621
def copy_content_into(self, destination, revision_id=None):
622
"""Make a complete copy of the content in self into destination.
624
This is a destructive operation! Do not use it on existing
627
return InterRepository.get(self, destination).copy_content(revision_id)
629
def commit_write_group(self):
630
"""Commit the contents accrued within the current write group.
632
:seealso: start_write_group.
634
:return: it may return an opaque hint that can be passed to 'pack'.
636
if self._write_group is not self.get_transaction():
637
# has an unlock or relock occured ?
638
raise errors.BzrError('mismatched lock context %r and '
640
(self.get_transaction(), self._write_group))
641
result = self._commit_write_group()
642
self._write_group = None
645
def _commit_write_group(self):
646
"""Template method for per-repository write group cleanup.
648
This is called before the write group is considered to be
649
finished and should ensure that all data handed to the repository
650
for writing during the write group is safely committed (to the
651
extent possible considering file system caching etc).
654
def suspend_write_group(self):
655
"""Suspend a write group.
657
:raise UnsuspendableWriteGroup: If the write group can not be
659
:return: List of tokens
661
raise errors.UnsuspendableWriteGroup(self)
663
def refresh_data(self):
664
"""Re-read any data needed to synchronise with disk.
666
This method is intended to be called after another repository instance
667
(such as one used by a smart server) has inserted data into the
668
repository. On all repositories this will work outside of write groups.
669
Some repository formats (pack and newer for breezy native formats)
670
support refresh_data inside write groups. If called inside a write
671
group on a repository that does not support refreshing in a write group
672
IsInWriteGroupError will be raised.
676
def resume_write_group(self, tokens):
677
if not self.is_write_locked():
678
raise errors.NotWriteLocked(self)
679
if self._write_group:
680
raise errors.BzrError('already in a write group')
681
self._resume_write_group(tokens)
682
# so we can detect unlock/relock - the write group is now entered.
683
self._write_group = self.get_transaction()
685
def _resume_write_group(self, tokens):
686
raise errors.UnsuspendableWriteGroup(self)
688
def fetch(self, source, revision_id=None, find_ghosts=False):
689
"""Fetch the content required to construct revision_id from source.
691
If revision_id is None, then all content is copied.
693
fetch() may not be used when the repository is in a write group -
694
either finish the current write group before using fetch, or use
695
fetch before starting the write group.
697
:param find_ghosts: Find and copy revisions in the source that are
698
ghosts in the target (and not reachable directly by walking out to
699
the first-present revision in target from revision_id).
700
:param revision_id: If specified, all the content needed for this
701
revision ID will be copied to the target. Fetch will determine for
702
itself which content needs to be copied.
704
if self.is_in_write_group():
705
raise errors.InternalBzrError(
706
"May not fetch while in a write group.")
707
# fast path same-url fetch operations
708
# TODO: lift out to somewhere common with RemoteRepository
709
# <https://bugs.launchpad.net/bzr/+bug/401646>
710
if (self.has_same_location(source)
711
and self._has_same_fallbacks(source)):
712
# check that last_revision is in 'from' and then return a
714
if (revision_id is not None and
715
not _mod_revision.is_null(revision_id)):
716
self.get_revision(revision_id)
718
inter = InterRepository.get(source, self)
719
return inter.fetch(revision_id=revision_id, find_ghosts=find_ghosts)
721
def create_bundle(self, target, base, fileobj, format=None):
722
return serializer.write_bundle(self, target, base, fileobj, format)
724
def get_commit_builder(self, branch, parents, config_stack, timestamp=None,
725
timezone=None, committer=None, revprops=None,
726
revision_id=None, lossy=False):
727
"""Obtain a CommitBuilder for this repository.
729
:param branch: Branch to commit to.
730
:param parents: Revision ids of the parents of the new revision.
731
:param config_stack: Configuration stack to use.
732
:param timestamp: Optional timestamp recorded for commit.
733
:param timezone: Optional timezone for timestamp.
734
:param committer: Optional committer to set for commit.
735
:param revprops: Optional dictionary of revision properties.
736
:param revision_id: Optional revision id.
737
:param lossy: Whether to discard data that can not be natively
738
represented, when pushing to a foreign VCS
740
raise NotImplementedError(self.get_commit_builder)
742
@only_raises(errors.LockNotHeld, errors.LockBroken)
744
if (self.control_files._lock_count == 1 and
745
self.control_files._lock_mode == 'w'):
746
if self._write_group is not None:
747
self.abort_write_group()
748
self.control_files.unlock()
749
raise errors.BzrError(
750
'Must end write groups before releasing write locks.')
751
self.control_files.unlock()
752
if self.control_files._lock_count == 0:
753
for repo in self._fallback_repositories:
756
def clone(self, controldir, revision_id=None):
757
"""Clone this repository into controldir using the current format.
759
Currently no check is made that the format of this repository and
760
the bzrdir format are compatible. FIXME RBC 20060201.
762
:return: The newly created destination repository.
764
with self.lock_read():
765
# TODO: deprecate after 0.16; cloning this with all its settings is
766
# probably not very useful -- mbp 20070423
767
dest_repo = self._create_sprouting_repo(
768
controldir, shared=self.is_shared())
769
self.copy_content_into(dest_repo, revision_id)
772
def start_write_group(self):
773
"""Start a write group in the repository.
775
Write groups are used by repositories which do not have a 1:1 mapping
776
between file ids and backend store to manage the insertion of data from
777
both fetch and commit operations.
779
A write lock is required around the
780
start_write_group/commit_write_group for the support of lock-requiring
783
One can only insert data into a repository inside a write group.
787
if not self.is_write_locked():
788
raise errors.NotWriteLocked(self)
789
if self._write_group:
790
raise errors.BzrError('already in a write group')
791
self._start_write_group()
792
# so we can detect unlock/relock - the write group is now entered.
793
self._write_group = self.get_transaction()
795
def _start_write_group(self):
796
"""Template method for per-repository write group startup.
798
This is called before the write group is considered to be
802
def sprout(self, to_bzrdir, revision_id=None):
803
"""Create a descendent repository for new development.
805
Unlike clone, this does not copy the settings of the repository.
807
with self.lock_read():
808
dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
809
dest_repo.fetch(self, revision_id=revision_id)
812
def _create_sprouting_repo(self, a_controldir, shared):
814
a_controldir._format, self.controldir._format.__class__):
815
# use target default format.
816
dest_repo = a_controldir.create_repository()
818
# Most control formats need the repository to be specifically
819
# created, but on some old all-in-one formats it's not needed
821
dest_repo = self._format.initialize(
822
a_controldir, shared=shared)
823
except errors.UninitializableFormat:
824
dest_repo = a_controldir.open_repository()
827
def has_revision(self, revision_id):
828
"""True if this repository has a copy of the revision."""
829
with self.lock_read():
830
return revision_id in self.has_revisions((revision_id,))
832
def has_revisions(self, revision_ids):
833
"""Probe to find out the presence of multiple revisions.
835
:param revision_ids: An iterable of revision_ids.
836
:return: A set of the revision_ids that were present.
838
raise NotImplementedError(self.has_revisions)
840
def get_revision(self, revision_id):
841
"""Return the Revision object for a named revision."""
842
with self.lock_read():
843
return self.get_revisions([revision_id])[0]
845
def get_revision_reconcile(self, revision_id):
846
"""'reconcile' helper routine that allows access to a revision always.
848
This variant of get_revision does not cross check the weave graph
849
against the revision one as get_revision does: but it should only
850
be used by reconcile, or reconcile-alike commands that are correcting
851
or testing the revision graph.
853
raise NotImplementedError(self.get_revision_reconcile)
855
def get_revisions(self, revision_ids):
856
"""Get many revisions at once.
858
Repositories that need to check data on every revision read should
859
subclass this method.
862
for revid, rev in self.iter_revisions(revision_ids):
864
raise errors.NoSuchRevision(self, revid)
866
return [revs[revid] for revid in revision_ids]
868
def iter_revisions(self, revision_ids):
869
"""Iterate over revision objects.
871
:param revision_ids: An iterable of revisions to examine. None may be
872
passed to request all revisions known to the repository. Note that
873
not all repositories can find unreferenced revisions; for those
874
repositories only referenced ones will be returned.
875
:return: An iterator of (revid, revision) tuples. Absent revisions (
876
those asked for but not available) are returned as (revid, None).
877
N.B.: Revisions are not necessarily yielded in order.
879
raise NotImplementedError(self.iter_revisions)
881
def get_deltas_for_revisions(self, revisions, specific_fileids=None):
882
"""Produce a generator of revision deltas.
884
Note that the input is a sequence of REVISIONS, not revision_ids.
885
Trees will be held in memory until the generator exits.
886
Each delta is relative to the revision's lefthand predecessor.
888
:param specific_fileids: if not None, the result is filtered
889
so that only those file-ids, their parents and their
890
children are included.
892
raise NotImplementedError(self.get_deltas_for_revisions)
894
def get_revision_delta(self, revision_id, specific_fileids=None):
895
"""Return the delta for one revision.
897
The delta is relative to the left-hand predecessor of the
900
:param specific_fileids: if not None, the result is filtered
901
so that only those file-ids, their parents and their
902
children are included.
904
with self.lock_read():
905
r = self.get_revision(revision_id)
906
return list(self.get_deltas_for_revisions(
907
[r], specific_fileids=specific_fileids))[0]
909
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
910
raise NotImplementedError(self.store_revision_signature)
912
def add_signature_text(self, revision_id, signature):
913
"""Store a signature text for a revision.
915
:param revision_id: Revision id of the revision
916
:param signature: Signature text.
918
raise NotImplementedError(self.add_signature_text)
920
def iter_files_bytes(self, desired_files):
921
"""Iterate through file versions.
923
Files will not necessarily be returned in the order they occur in
924
desired_files. No specific order is guaranteed.
926
Yields pairs of identifier, bytes_iterator. identifier is an opaque
927
value supplied by the caller as part of desired_files. It should
928
uniquely identify the file version in the caller's context. (Examples:
929
an index number or a TreeTransform trans_id.)
931
:param desired_files: a list of (file_id, revision_id, identifier)
934
raise NotImplementedError(self.iter_files_bytes)
936
def get_rev_id_for_revno(self, revno, known_pair):
937
"""Return the revision id of a revno, given a later (revno, revid)
938
pair in the same history.
940
:return: if found (True, revid). If the available history ran out
941
before reaching the revno, then this returns
942
(False, (closest_revno, closest_revid)).
944
known_revno, known_revid = known_pair
945
partial_history = [known_revid]
946
distance_from_known = known_revno - revno
947
if distance_from_known < 0:
948
raise errors.RevnoOutOfBounds(revno, (0, known_revno))
951
self, partial_history, stop_index=distance_from_known)
952
except errors.RevisionNotPresent as err:
953
if err.revision_id == known_revid:
954
# The start revision (known_revid) wasn't found.
955
raise errors.NoSuchRevision(self, known_revid)
956
# This is a stacked repository with no fallbacks, or a there's a
957
# left-hand ghost. Either way, even though the revision named in
958
# the error isn't in this repo, we know it's the next step in this
960
partial_history.append(err.revision_id)
961
if len(partial_history) <= distance_from_known:
962
# Didn't find enough history to get a revid for the revno.
963
earliest_revno = known_revno - len(partial_history) + 1
964
return (False, (earliest_revno, partial_history[-1]))
965
if len(partial_history) - 1 > distance_from_known:
966
raise AssertionError('_iter_for_revno returned too much history')
967
return (True, partial_history[-1])
970
"""Return True if this repository is flagged as a shared repository."""
971
raise NotImplementedError(self.is_shared)
973
def reconcile(self, other=None, thorough=False):
974
"""Reconcile this repository."""
975
raise NotImplementedError(self.reconcile)
977
def _refresh_data(self):
978
"""Helper called from lock_* to ensure coherency with disk.
980
The default implementation does nothing; it is however possible
981
for repositories to maintain loaded indices across multiple locks
982
by checking inside their implementation of this method to see
983
whether their indices are still valid. This depends of course on
984
the disk format being validatable in this manner. This method is
985
also called by the refresh_data() public interface to cause a refresh
986
to occur while in a write lock so that data inserted by a smart server
987
push operation is visible on the client's instance of the physical
991
def revision_tree(self, revision_id):
992
"""Return Tree for a revision on this branch.
994
`revision_id` may be NULL_REVISION for the empty tree revision.
996
raise NotImplementedError(self.revision_tree)
998
def revision_trees(self, revision_ids):
999
"""Return Trees for revisions in this repository.
1001
:param revision_ids: a sequence of revision-ids;
1002
a revision-id may not be None or b'null:'
1004
raise NotImplementedError(self.revision_trees)
1006
def pack(self, hint=None, clean_obsolete_packs=False):
1007
"""Compress the data within the repository.
1009
This operation only makes sense for some repository types. For other
1010
types it should be a no-op that just returns.
1012
This stub method does not require a lock, but subclasses should use
1013
self.write_lock as this is a long running call it's reasonable to
1014
implicitly lock for the user.
1016
:param hint: If not supplied, the whole repository is packed.
1017
If supplied, the repository may use the hint parameter as a
1018
hint for the parts of the repository to pack. A hint can be
1019
obtained from the result of commit_write_group(). Out of
1020
date hints are simply ignored, because concurrent operations
1021
can obsolete them rapidly.
1023
:param clean_obsolete_packs: Clean obsolete packs immediately after
1027
def get_transaction(self):
1028
return self.control_files.get_transaction()
1030
def get_parent_map(self, revision_ids):
1031
"""See graph.StackedParentsProvider.get_parent_map"""
1032
raise NotImplementedError(self.get_parent_map)
1034
def _get_parent_map_no_fallbacks(self, revision_ids):
1035
"""Same as Repository.get_parent_map except doesn't query fallbacks."""
1036
# revisions index works in keys; this just works in revisions
1037
# therefore wrap and unwrap
1040
for revision_id in revision_ids:
1041
if revision_id == _mod_revision.NULL_REVISION:
1042
result[revision_id] = ()
1043
elif revision_id is None:
1044
raise ValueError('get_parent_map(None) is not valid')
1046
query_keys.append((revision_id,))
1047
vf = self.revisions.without_fallbacks()
1048
for (revision_id,), parent_keys in viewitems(
1049
vf.get_parent_map(query_keys)):
1051
result[revision_id] = tuple([parent_revid
1052
for (parent_revid,) in parent_keys])
1054
result[revision_id] = (_mod_revision.NULL_REVISION,)
1057
def _make_parents_provider(self):
1058
if not self._format.supports_external_lookups:
1060
return graph.StackedParentsProvider(_LazyListJoin(
1061
[self._make_parents_provider_unstacked()],
1062
self._fallback_repositories))
1064
def _make_parents_provider_unstacked(self):
1065
return graph.CallableToParentsProviderAdapter(
1066
self._get_parent_map_no_fallbacks)
1068
def get_known_graph_ancestry(self, revision_ids):
1069
"""Return the known graph for a set of revision ids and their ancestors.
1071
raise NotImplementedError(self.get_known_graph_ancestry)
1073
def get_file_graph(self):
1074
"""Return the graph walker for files."""
1075
raise NotImplementedError(self.get_file_graph)
1077
def get_graph(self, other_repository=None):
1078
"""Return the graph walker for this repository format"""
1079
parents_provider = self._make_parents_provider()
1080
if (other_repository is not None and
1081
not self.has_same_location(other_repository)):
1082
parents_provider = graph.StackedParentsProvider(
1083
[parents_provider, other_repository._make_parents_provider()])
1084
return graph.Graph(parents_provider)
1086
def set_make_working_trees(self, new_value):
1087
"""Set the policy flag for making working trees when creating branches.
1089
This only applies to branches that use this repository.
1091
The default is 'True'.
1092
:param new_value: True to restore the default, False to disable making
1095
raise NotImplementedError(self.set_make_working_trees)
1097
def make_working_trees(self):
1098
"""Returns the policy for making working trees on new branches."""
1099
raise NotImplementedError(self.make_working_trees)
1101
def sign_revision(self, revision_id, gpg_strategy):
1102
raise NotImplementedError(self.sign_revision)
1104
def verify_revision_signature(self, revision_id, gpg_strategy):
1105
"""Verify the signature on a revision.
1107
:param revision_id: the revision to verify
1108
:gpg_strategy: the GPGStrategy object to used
1110
:return: gpg.SIGNATURE_VALID or a failed SIGNATURE_ value
1112
raise NotImplementedError(self.verify_revision_signature)
1114
def verify_revision_signatures(self, revision_ids, gpg_strategy):
1115
"""Verify revision signatures for a number of revisions.
1117
:param revision_id: the revision to verify
1118
:gpg_strategy: the GPGStrategy object to used
1119
:return: Iterator over tuples with revision id, result and keys
1121
with self.lock_read():
1122
for revid in revision_ids:
1123
(result, key) = self.verify_revision_signature(revid, gpg_strategy)
1124
yield revid, result, key
1126
def has_signature_for_revision_id(self, revision_id):
1127
"""Query for a revision signature for revision_id in the repository."""
1128
raise NotImplementedError(self.has_signature_for_revision_id)
1130
def get_signature_text(self, revision_id):
1131
"""Return the text for a signature."""
1132
raise NotImplementedError(self.get_signature_text)
1134
def check(self, revision_ids=None, callback_refs=None, check_repo=True):
1135
"""Check consistency of all history of given revision_ids.
1137
Different repository implementations should override _check().
1139
:param revision_ids: A non-empty list of revision_ids whose ancestry
1140
will be checked. Typically the last revision_id of a branch.
1141
:param callback_refs: A dict of check-refs to resolve and callback
1142
the check/_check method on the items listed as wanting the ref.
1144
:param check_repo: If False do not check the repository contents, just
1145
calculate the data callback_refs requires and call them back.
1147
return self._check(revision_ids=revision_ids, callback_refs=callback_refs,
1148
check_repo=check_repo)
1150
def _check(self, revision_ids=None, callback_refs=None, check_repo=True):
1151
raise NotImplementedError(self.check)
1153
def _warn_if_deprecated(self, branch=None):
1154
if not self._format.is_deprecated():
1156
global _deprecation_warning_done
1157
if _deprecation_warning_done:
1161
conf = config.GlobalStack()
1163
conf = branch.get_config_stack()
1164
if 'format_deprecation' in conf.get('suppress_warnings'):
1166
warning("Format %s for %s is deprecated -"
1167
" please use 'brz upgrade' to get better performance"
1168
% (self._format, self.controldir.transport.base))
1170
_deprecation_warning_done = True
1172
def supports_rich_root(self):
1173
return self._format.rich_root_data
1175
def _check_ascii_revisionid(self, revision_id, method):
1176
"""Private helper for ascii-only repositories."""
1177
# weave repositories refuse to store revisionids that are non-ascii.
1178
if revision_id is not None:
1179
# weaves require ascii revision ids.
1180
if isinstance(revision_id, text_type):
1182
revision_id.encode('ascii')
1183
except UnicodeEncodeError:
1184
raise errors.NonAsciiRevisionId(method, self)
1187
revision_id.decode('ascii')
1188
except UnicodeDecodeError:
1189
raise errors.NonAsciiRevisionId(method, self)
1192
class RepositoryFormatRegistry(controldir.ControlComponentFormatRegistry):
1193
"""Repository format registry."""
1195
def get_default(self):
1196
"""Return the current default format."""
1197
return controldir.format_registry.make_controldir('default').repository_format
1200
network_format_registry = registry.FormatRegistry()
1201
"""Registry of formats indexed by their network name.
1203
The network name for a repository format is an identifier that can be used when
1204
referring to formats with smart server operations. See
1205
RepositoryFormat.network_name() for more detail.
1209
format_registry = RepositoryFormatRegistry(network_format_registry)
1210
"""Registry of formats, indexed by their BzrDirMetaFormat format string.
1212
This can contain either format instances themselves, or classes/factories that
1213
can be called to obtain one.
1217
#####################################################################
1218
# Repository Formats
1220
class RepositoryFormat(controldir.ControlComponentFormat):
1221
"""A repository format.
1223
Formats provide four things:
1224
* An initialization routine to construct repository data on disk.
1225
* a optional format string which is used when the BzrDir supports
1227
* an open routine which returns a Repository instance.
1228
* A network name for referring to the format in smart server RPC
1231
There is one and only one Format subclass for each on-disk format. But
1232
there can be one Repository subclass that is used for several different
1233
formats. The _format attribute on a Repository instance can be used to
1234
determine the disk format.
1236
Formats are placed in a registry by their format string for reference
1237
during opening. These should be subclasses of RepositoryFormat for
1240
Once a format is deprecated, just deprecate the initialize and open
1241
methods on the format class. Do not deprecate the object, as the
1242
object may be created even when a repository instance hasn't been
1245
Common instance attributes:
1246
_matchingcontroldir - the controldir format that the repository format was
1247
originally written to work with. This can be used if manually
1248
constructing a bzrdir and repository, or more commonly for test suite
1252
# Set to True or False in derived classes. True indicates that the format
1253
# supports ghosts gracefully.
1254
supports_ghosts = None
1255
# Can this repository be given external locations to lookup additional
1256
# data. Set to True or False in derived classes.
1257
supports_external_lookups = None
1258
# Does this format support CHK bytestring lookups. Set to True or False in
1260
supports_chks = None
1261
# Should fetch trigger a reconcile after the fetch? Only needed for
1262
# some repository formats that can suffer internal inconsistencies.
1263
_fetch_reconcile = False
1264
# Does this format have < O(tree_size) delta generation. Used to hint what
1265
# code path for commit, amongst other things.
1267
# Does doing a pack operation compress data? Useful for the pack UI command
1268
# (so if there is one pack, the operation can still proceed because it may
1269
# help), and for fetching when data won't have come from the same
1271
pack_compresses = False
1272
# Does the repository storage understand references to trees?
1273
supports_tree_reference = None
1274
# Is the format experimental ?
1275
experimental = False
1276
# Does this repository format escape funky characters, or does it create
1277
# files with similar names as the versioned files in its contents on disk
1279
supports_funky_characters = None
1280
# Does this repository format support leaving locks?
1281
supports_leaving_lock = None
1282
# Does this format support the full VersionedFiles interface?
1283
supports_full_versioned_files = None
1284
# Does this format support signing revision signatures?
1285
supports_revision_signatures = True
1286
# Can the revision graph have incorrect parents?
1287
revision_graph_can_have_wrong_parents = None
1288
# Does this format support setting revision ids?
1289
supports_setting_revision_ids = True
1290
# Does this format support rich root data?
1291
rich_root_data = None
1292
# Does this format support explicitly versioned directories?
1293
supports_versioned_directories = None
1294
# Can other repositories be nested into one of this format?
1295
supports_nesting_repositories = None
1296
# Is it possible for revisions to be present without being referenced
1298
supports_unreferenced_revisions = None
1299
# Does this format store the current Branch.nick in a revision when
1301
supports_storing_branch_nick = True
1302
# Does the format support overriding the transport to use
1303
supports_overriding_transport = True
1304
# Does the format support setting custom revision properties?
1305
supports_custom_revision_properties = True
1306
# Does the format record per-file revision metadata?
1307
records_per_file_revision = True
1310
return "%s()" % self.__class__.__name__
1312
def __eq__(self, other):
1313
# format objects are generally stateless
1314
return isinstance(other, self.__class__)
1316
def __ne__(self, other):
1317
return not self == other
1319
def get_format_description(self):
1320
"""Return the short description for this format."""
1321
raise NotImplementedError(self.get_format_description)
1323
def initialize(self, controldir, shared=False):
1324
"""Initialize a repository of this format in controldir.
1326
:param controldir: The controldir to put the new repository in it.
1327
:param shared: The repository should be initialized as a sharable one.
1328
:returns: The new repository object.
1330
This may raise UninitializableFormat if shared repository are not
1331
compatible the controldir.
1333
raise NotImplementedError(self.initialize)
1335
def is_supported(self):
1336
"""Is this format supported?
1338
Supported formats must be initializable and openable.
1339
Unsupported formats may not support initialization or committing or
1340
some other features depending on the reason for not being supported.
1344
def is_deprecated(self):
1345
"""Is this format deprecated?
1347
Deprecated formats may trigger a user-visible warning recommending
1348
the user to upgrade. They are still fully supported.
1352
def network_name(self):
1353
"""A simple byte string uniquely identifying this format for RPC calls.
1355
MetaDir repository formats use their disk format string to identify the
1356
repository over the wire. All in one formats such as bzr < 0.8, and
1357
foreign formats like svn/git and hg should use some marker which is
1358
unique and immutable.
1360
raise NotImplementedError(self.network_name)
1362
def check_conversion_target(self, target_format):
1363
if self.rich_root_data and not target_format.rich_root_data:
1364
raise errors.BadConversionTarget(
1365
'Does not support rich root data.', target_format,
1367
if (self.supports_tree_reference
1368
and not getattr(target_format, 'supports_tree_reference', False)):
1369
raise errors.BadConversionTarget(
1370
'Does not support nested trees', target_format,
1373
def open(self, controldir, _found=False):
1374
"""Return an instance of this format for a controldir.
1376
_found is a private parameter, do not use it.
1378
raise NotImplementedError(self.open)
1380
def _run_post_repo_init_hooks(self, repository, controldir, shared):
1381
from .controldir import ControlDir, RepoInitHookParams
1382
hooks = ControlDir.hooks['post_repo_init']
1385
params = RepoInitHookParams(repository, self, controldir, shared)
1390
# formats which have no format string are not discoverable or independently
1391
# creatable on disk, so are not registered in format_registry. They're
1392
# all in breezy.bzr.knitreponow. When an instance of one of these is
1393
# needed, it's constructed directly by the ControlDir. Non-native formats where
1394
# the repository is not separately opened are similar.
1396
format_registry.register_lazy(
1397
b'Bazaar-NG Knit Repository Format 1',
1398
'breezy.bzr.knitrepo',
1399
'RepositoryFormatKnit1',
1402
format_registry.register_lazy(
1403
b'Bazaar Knit Repository Format 3 (bzr 0.15)\n',
1404
'breezy.bzr.knitrepo',
1405
'RepositoryFormatKnit3',
1408
format_registry.register_lazy(
1409
b'Bazaar Knit Repository Format 4 (bzr 1.0)\n',
1410
'breezy.bzr.knitrepo',
1411
'RepositoryFormatKnit4',
1414
# Pack-based formats. There is one format for pre-subtrees, and one for
1415
# post-subtrees to allow ease of testing.
1416
# NOTE: These are experimental in 0.92. Stable in 1.0 and above
1417
format_registry.register_lazy(
1418
b'Bazaar pack repository format 1 (needs bzr 0.92)\n',
1419
'breezy.bzr.knitpack_repo',
1420
'RepositoryFormatKnitPack1',
1422
format_registry.register_lazy(
1423
b'Bazaar pack repository format 1 with subtree support (needs bzr 0.92)\n',
1424
'breezy.bzr.knitpack_repo',
1425
'RepositoryFormatKnitPack3',
1427
format_registry.register_lazy(
1428
b'Bazaar pack repository format 1 with rich root (needs bzr 1.0)\n',
1429
'breezy.bzr.knitpack_repo',
1430
'RepositoryFormatKnitPack4',
1432
format_registry.register_lazy(
1433
b'Bazaar RepositoryFormatKnitPack5 (bzr 1.6)\n',
1434
'breezy.bzr.knitpack_repo',
1435
'RepositoryFormatKnitPack5',
1437
format_registry.register_lazy(
1438
b'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6.1)\n',
1439
'breezy.bzr.knitpack_repo',
1440
'RepositoryFormatKnitPack5RichRoot',
1442
format_registry.register_lazy(
1443
b'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6)\n',
1444
'breezy.bzr.knitpack_repo',
1445
'RepositoryFormatKnitPack5RichRootBroken',
1447
format_registry.register_lazy(
1448
b'Bazaar RepositoryFormatKnitPack6 (bzr 1.9)\n',
1449
'breezy.bzr.knitpack_repo',
1450
'RepositoryFormatKnitPack6',
1452
format_registry.register_lazy(
1453
b'Bazaar RepositoryFormatKnitPack6RichRoot (bzr 1.9)\n',
1454
'breezy.bzr.knitpack_repo',
1455
'RepositoryFormatKnitPack6RichRoot',
1457
format_registry.register_lazy(
1458
b'Bazaar repository format 2a (needs bzr 1.16 or later)\n',
1459
'breezy.bzr.groupcompress_repo',
1460
'RepositoryFormat2a',
1463
# Development formats.
1464
# Check their docstrings to see if/when they are obsolete.
1465
format_registry.register_lazy(
1466
(b"Bazaar development format 2 with subtree support "
1467
b"(needs bzr.dev from before 1.8)\n"),
1468
'breezy.bzr.knitpack_repo',
1469
'RepositoryFormatPackDevelopment2Subtree',
1471
format_registry.register_lazy(
1472
b'Bazaar development format 8\n',
1473
'breezy.bzr.groupcompress_repo',
1474
'RepositoryFormat2aSubtree',
1478
class InterRepository(InterObject):
1479
"""This class represents operations taking place between two repositories.
1481
Its instances have methods like copy_content and fetch, and contain
1482
references to the source and target repositories these operations can be
1485
Often we will provide convenience methods on 'repository' which carry out
1486
operations with another repository - they will always forward to
1487
InterRepository.get(other).method_name(parameters).
1491
"""The available optimised InterRepository types."""
1493
def copy_content(self, revision_id=None):
1494
"""Make a complete copy of the content in self into destination.
1496
This is a destructive operation! Do not use it on existing
1499
:param revision_id: Only copy the content needed to construct
1500
revision_id and its parents.
1502
with self.lock_write():
1504
self.target.set_make_working_trees(
1505
self.source.make_working_trees())
1506
except NotImplementedError:
1508
self.target.fetch(self.source, revision_id=revision_id)
1510
def fetch(self, revision_id=None, find_ghosts=False):
1511
"""Fetch the content required to construct revision_id.
1513
The content is copied from self.source to self.target.
1515
:param revision_id: if None all content is copied, if NULL_REVISION no
1519
raise NotImplementedError(self.fetch)
1521
def search_missing_revision_ids(
1522
self, find_ghosts=True, revision_ids=None, if_present_ids=None,
1524
"""Return the revision ids that source has that target does not.
1526
:param revision_ids: return revision ids included by these
1527
revision_ids. NoSuchRevision will be raised if any of these
1528
revisions are not present.
1529
:param if_present_ids: like revision_ids, but will not cause
1530
NoSuchRevision if any of these are absent, instead they will simply
1531
not be in the result. This is useful for e.g. finding revisions
1532
to fetch for tags, which may reference absent revisions.
1533
:param find_ghosts: If True find missing revisions in deep history
1534
rather than just finding the surface difference.
1535
:param limit: Maximum number of revisions to return, topologically
1537
:return: A breezy.graph.SearchResult.
1539
raise NotImplementedError(self.search_missing_revision_ids)
1542
def _same_model(source, target):
1543
"""True if source and target have the same data representation.
1545
Note: this is always called on the base class; overriding it in a
1546
subclass will have no effect.
1549
InterRepository._assert_same_model(source, target)
1551
except errors.IncompatibleRepositories as e:
1555
def _assert_same_model(source, target):
1556
"""Raise an exception if two repositories do not use the same model.
1558
if source.supports_rich_root() != target.supports_rich_root():
1559
raise errors.IncompatibleRepositories(source, target,
1560
"different rich-root support")
1561
if source._serializer != target._serializer:
1562
raise errors.IncompatibleRepositories(source, target,
1563
"different serializers")
1566
class CopyConverter(object):
1567
"""A repository conversion tool which just performs a copy of the content.
1569
This is slow but quite reliable.
1572
def __init__(self, target_format):
1573
"""Create a CopyConverter.
1575
:param target_format: The format the resulting repository should be.
1577
self.target_format = target_format
1579
def convert(self, repo, pb):
1580
"""Perform the conversion of to_convert, giving feedback via pb.
1582
:param to_convert: The disk object to convert.
1583
:param pb: a progress bar to use for progress information.
1585
with ui.ui_factory.nested_progress_bar() as pb:
1588
# this is only useful with metadir layouts - separated repo content.
1589
# trigger an assertion if not such
1590
repo._format.get_format_string()
1591
self.repo_dir = repo.controldir
1592
pb.update(gettext('Moving repository to repository.backup'))
1593
self.repo_dir.transport.move('repository', 'repository.backup')
1594
backup_transport = self.repo_dir.transport.clone(
1595
'repository.backup')
1596
repo._format.check_conversion_target(self.target_format)
1597
self.source_repo = repo._format.open(self.repo_dir,
1599
_override_transport=backup_transport)
1600
pb.update(gettext('Creating new repository'))
1601
converted = self.target_format.initialize(self.repo_dir,
1602
self.source_repo.is_shared())
1603
converted.lock_write()
1605
pb.update(gettext('Copying content'))
1606
self.source_repo.copy_content_into(converted)
1609
pb.update(gettext('Deleting old repository content'))
1610
self.repo_dir.transport.delete_tree('repository.backup')
1611
ui.ui_factory.note(gettext('repository converted'))
1614
def _strip_NULL_ghosts(revision_graph):
1615
"""Also don't use this. more compatibility code for unmigrated clients."""
1616
# Filter ghosts, and null:
1617
if _mod_revision.NULL_REVISION in revision_graph:
1618
del revision_graph[_mod_revision.NULL_REVISION]
1619
for key, parents in viewitems(revision_graph):
1620
revision_graph[key] = tuple(parent for parent in parents if parent
1622
return revision_graph
1625
def _iter_for_revno(repo, partial_history_cache, stop_index=None,
1626
stop_revision=None):
1627
"""Extend the partial history to include a given index
1629
If a stop_index is supplied, stop when that index has been reached.
1630
If a stop_revision is supplied, stop when that revision is
1631
encountered. Otherwise, stop when the beginning of history is
1634
:param stop_index: The index which should be present. When it is
1635
present, history extension will stop.
1636
:param stop_revision: The revision id which should be present. When
1637
it is encountered, history extension will stop.
1639
start_revision = partial_history_cache[-1]
1640
graph = repo.get_graph()
1641
iterator = graph.iter_lefthand_ancestry(start_revision,
1642
(_mod_revision.NULL_REVISION,))
1644
# skip the last revision in the list
1647
if (stop_index is not None and
1648
len(partial_history_cache) > stop_index):
1650
if partial_history_cache[-1] == stop_revision:
1652
revision_id = next(iterator)
1653
partial_history_cache.append(revision_id)
1654
except StopIteration:
1659
class _LazyListJoin(object):
1660
"""An iterable yielding the contents of many lists as one list.
1662
Each iterator made from this will reflect the current contents of the lists
1663
at the time the iterator is made.
1665
This is used by Repository's _make_parents_provider implementation so that
1668
pp = repo._make_parents_provider() # uses a list of fallback repos
1669
pp.add_fallback_repository(other_repo) # appends to that list
1670
result = pp.get_parent_map(...)
1671
# The result will include revs from other_repo
1674
def __init__(self, *list_parts):
1675
self.list_parts = list_parts
1679
for list_part in self.list_parts:
1680
full_list.extend(list_part)
1681
return iter(full_list)
1684
return "%s.%s(%s)" % (self.__module__, self.__class__.__name__,
added
removed
breezy/repository.py
