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  • Committer: Aaron Bentley
  • Date: 2009-04-14 15:02:46 UTC
  • mto: This revision was merged to the branch mainline in revision 4302.
  • Revision ID: aaron@aaronbentley.com-20090414150246-6xfd3bwwf2m8v4px
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# Copyright (C) 2008-2011 Canonical Ltd
 
1
# Copyright (C) 2008, 2009 Canonical Ltd
2
2
#
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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
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14
# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
17
 
"""Repository formats using CHK inventories and groupcompress compression."""
 
17
"""Repostory formats using CHK inventories and groupcompress compression."""
18
18
 
19
19
import time
20
20
 
26
26
    errors,
27
27
    index as _mod_index,
28
28
    inventory,
 
29
    knit,
29
30
    osutils,
30
31
    pack,
 
32
    remote,
 
33
    repository,
31
34
    revision as _mod_revision,
32
35
    trace,
33
36
    ui,
34
 
    versionedfile,
35
37
    )
36
38
from bzrlib.btree_index import (
37
39
    BTreeGraphIndex,
38
40
    BTreeBuilder,
39
41
    )
40
 
from bzrlib.decorators import needs_write_lock
 
42
from bzrlib.index import GraphIndex, GraphIndexBuilder
41
43
from bzrlib.groupcompress import (
42
44
    _GCGraphIndex,
43
45
    GroupCompressVersionedFiles,
44
46
    )
45
47
from bzrlib.repofmt.pack_repo import (
46
 
    _DirectPackAccess,
47
48
    Pack,
48
49
    NewPack,
49
 
    PackRepository,
 
50
    KnitPackRepository,
50
51
    PackRootCommitBuilder,
51
52
    RepositoryPackCollection,
52
53
    RepositoryFormatPack,
53
 
    ResumedPack,
54
54
    Packer,
55
55
    )
56
 
from bzrlib.vf_repository import (
57
 
    StreamSource,
58
 
    )
59
 
from bzrlib.static_tuple import StaticTuple
60
56
 
61
57
 
62
58
class GCPack(NewPack):
91
87
            # have a regular 2-list index giving parents and compression
92
88
            # source.
93
89
            index_builder_class(reference_lists=1),
94
 
            # Texts: per file graph, for all fileids - so one reference list
95
 
            # and two elements in the key tuple.
 
90
            # Texts: compression and per file graph, for all fileids - so two
 
91
            # reference lists and two elements in the key tuple.
96
92
            index_builder_class(reference_lists=1, key_elements=2),
97
93
            # Signatures: Just blobs to store, no compression, no parents
98
94
            # listing.
158
154
        self._writer.begin()
159
155
        # what state is the pack in? (open, finished, aborted)
160
156
        self._state = 'open'
161
 
        # no name until we finish writing the content
162
 
        self.name = None
163
157
 
164
158
    def _check_references(self):
165
159
        """Make sure our external references are present.
169
163
        have deltas based on a fallback repository.
170
164
        (See <https://bugs.launchpad.net/bzr/+bug/288751>)
171
165
        """
172
 
        # Groupcompress packs don't have any external references, arguably CHK
173
 
        # pages have external references, but we cannot 'cheaply' determine
174
 
        # them without actually walking all of the chk pages.
175
 
 
176
 
 
177
 
class ResumedGCPack(ResumedPack):
178
 
 
179
 
    def _check_references(self):
180
 
        """Make sure our external compression parents are present."""
181
 
        # See GCPack._check_references for why this is empty
182
 
 
183
 
    def _get_external_refs(self, index):
184
 
        # GC repositories don't have compression parents external to a given
185
 
        # pack file
186
 
        return set()
 
166
        # Groupcompress packs don't have any external references
187
167
 
188
168
 
189
169
class GCCHKPacker(Packer):
222
202
            p_id_roots_set = set()
223
203
            stream = source_vf.get_record_stream(keys, 'groupcompress', True)
224
204
            for idx, record in enumerate(stream):
225
 
                # Inventories should always be with revisions; assume success.
226
205
                bytes = record.get_bytes_as('fulltext')
227
206
                chk_inv = inventory.CHKInventory.deserialise(None, bytes,
228
207
                                                             record.key)
266
245
        remaining_keys = set(keys)
267
246
        counter = [0]
268
247
        if self._gather_text_refs:
 
248
            bytes_to_info = inventory.CHKInventory._bytes_to_utf8name_key
269
249
            self._text_refs = set()
270
250
        def _get_referenced_stream(root_keys, parse_leaf_nodes=False):
271
251
            cur_keys = root_keys
292
272
                    # Store is None, because we know we have a LeafNode, and we
293
273
                    # just want its entries
294
274
                    for file_id, bytes in node.iteritems(None):
295
 
                        self._text_refs.add(chk_map._bytes_to_text_key(bytes))
 
275
                        name_utf8, file_id, revision_id = bytes_to_info(bytes)
 
276
                        self._text_refs.add((file_id, revision_id))
296
277
                def next_stream():
297
278
                    stream = source_vf.get_record_stream(cur_keys,
298
279
                                                         'as-requested', True)
299
280
                    for record in stream:
300
 
                        if record.storage_kind == 'absent':
301
 
                            # An absent CHK record: we assume that the missing
302
 
                            # record is in a different pack - e.g. a page not
303
 
                            # altered by the commit we're packing.
304
 
                            continue
305
281
                        bytes = record.get_bytes_as('fulltext')
306
282
                        # We don't care about search_key_func for this code,
307
283
                        # because we only care about external references.
354
330
        """Build a VersionedFiles instance on top of this group of packs."""
355
331
        index_name = index_name + '_index'
356
332
        index_to_pack = {}
357
 
        access = _DirectPackAccess(index_to_pack,
358
 
                                   reload_func=self._reload_func)
 
333
        access = knit._DirectPackAccess(index_to_pack)
359
334
        if for_write:
360
335
            # Use new_pack
361
336
            if self.new_pack is None:
415
390
 
416
391
    def _copy_inventory_texts(self):
417
392
        source_vf, target_vf = self._build_vfs('inventory', True, True)
418
 
        # It is not sufficient to just use self.revision_keys, as stacked
419
 
        # repositories can have more inventories than they have revisions.
420
 
        # One alternative would be to do something with
421
 
        # get_parent_map(self.revision_keys), but that shouldn't be any faster
422
 
        # than this.
423
 
        inventory_keys = source_vf.keys()
424
 
        missing_inventories = set(self.revision_keys).difference(inventory_keys)
425
 
        if missing_inventories:
426
 
            # Go back to the original repo, to see if these are really missing
427
 
            # https://bugs.launchpad.net/bzr/+bug/437003
428
 
            # If we are packing a subset of the repo, it is fine to just have
429
 
            # the data in another Pack file, which is not included in this pack
430
 
            # operation.
431
 
            inv_index = self._pack_collection.repo.inventories._index
432
 
            pmap = inv_index.get_parent_map(missing_inventories)
433
 
            really_missing = missing_inventories.difference(pmap)
434
 
            if really_missing:
435
 
                missing_inventories = sorted(really_missing)
436
 
                raise ValueError('We are missing inventories for revisions: %s'
437
 
                    % (missing_inventories,))
438
 
        self._copy_stream(source_vf, target_vf, inventory_keys,
 
393
        self._copy_stream(source_vf, target_vf, self.revision_keys,
439
394
                          'inventories', self._get_filtered_inv_stream, 2)
440
395
 
441
 
    def _get_chk_vfs_for_copy(self):
442
 
        return self._build_vfs('chk', False, False)
443
 
 
444
396
    def _copy_chk_texts(self):
445
 
        source_vf, target_vf = self._get_chk_vfs_for_copy()
 
397
        source_vf, target_vf = self._build_vfs('chk', False, False)
446
398
        # TODO: This is technically spurious... if it is a performance issue,
447
399
        #       remove it
448
400
        total_keys = source_vf.keys()
471
423
        #      is grabbing too many keys...
472
424
        text_keys = source_vf.keys()
473
425
        self._copy_stream(source_vf, target_vf, text_keys,
474
 
                          'texts', self._get_progress_stream, 4)
 
426
                          'text', self._get_progress_stream, 4)
475
427
 
476
428
    def _copy_signature_texts(self):
477
429
        source_vf, target_vf = self._build_vfs('signature', False, False)
494
446
        if not self._use_pack(self.new_pack):
495
447
            self.new_pack.abort()
496
448
            return None
497
 
        self.new_pack.finish_content()
498
 
        if len(self.packs) == 1:
499
 
            old_pack = self.packs[0]
500
 
            if old_pack.name == self.new_pack._hash.hexdigest():
501
 
                # The single old pack was already optimally packed.
502
 
                trace.mutter('single pack %s was already optimally packed',
503
 
                    old_pack.name)
504
 
                self.new_pack.abort()
505
 
                return None
506
449
        self.pb.update('finishing repack', 6, 7)
507
450
        self.new_pack.finish()
508
451
        self._pack_collection.allocate(self.new_pack)
594
537
        return new_pack.data_inserted() and self._data_changed
595
538
 
596
539
 
597
 
class GCCHKCanonicalizingPacker(GCCHKPacker):
598
 
    """A packer that ensures inventories have canonical-form CHK maps.
599
 
    
600
 
    Ideally this would be part of reconcile, but it's very slow and rarely
601
 
    needed.  (It repairs repositories affected by
602
 
    https://bugs.launchpad.net/bzr/+bug/522637).
603
 
    """
604
 
 
605
 
    def __init__(self, *args, **kwargs):
606
 
        super(GCCHKCanonicalizingPacker, self).__init__(*args, **kwargs)
607
 
        self._data_changed = False
608
 
 
609
 
    def _exhaust_stream(self, source_vf, keys, message, vf_to_stream, pb_offset):
610
 
        """Create and exhaust a stream, but don't insert it.
611
 
 
612
 
        This is useful to get the side-effects of generating a stream.
613
 
        """
614
 
        self.pb.update('scanning %s' % (message,), pb_offset)
615
 
        child_pb = ui.ui_factory.nested_progress_bar()
616
 
        try:
617
 
            list(vf_to_stream(source_vf, keys, message, child_pb))
618
 
        finally:
619
 
            child_pb.finished()
620
 
 
621
 
    def _copy_inventory_texts(self):
622
 
        source_vf, target_vf = self._build_vfs('inventory', True, True)
623
 
        source_chk_vf, target_chk_vf = self._get_chk_vfs_for_copy()
624
 
        inventory_keys = source_vf.keys()
625
 
        # First, copy the existing CHKs on the assumption that most of them
626
 
        # will be correct.  This will save us from having to reinsert (and
627
 
        # recompress) these records later at the cost of perhaps preserving a
628
 
        # few unused CHKs. 
629
 
        # (Iterate but don't insert _get_filtered_inv_stream to populate the
630
 
        # variables needed by GCCHKPacker._copy_chk_texts.)
631
 
        self._exhaust_stream(source_vf, inventory_keys, 'inventories',
632
 
                self._get_filtered_inv_stream, 2)
633
 
        GCCHKPacker._copy_chk_texts(self)
634
 
        # Now copy and fix the inventories, and any regenerated CHKs.
635
 
        def chk_canonicalizing_inv_stream(source_vf, keys, message, pb=None):
636
 
            return self._get_filtered_canonicalizing_inv_stream(
637
 
                source_vf, keys, message, pb, source_chk_vf, target_chk_vf)
638
 
        self._copy_stream(source_vf, target_vf, inventory_keys,
639
 
                          'inventories', chk_canonicalizing_inv_stream, 4)
640
 
 
641
 
    def _copy_chk_texts(self):
642
 
        # No-op; in this class this happens during _copy_inventory_texts.
643
 
        pass
644
 
 
645
 
    def _get_filtered_canonicalizing_inv_stream(self, source_vf, keys, message,
646
 
            pb=None, source_chk_vf=None, target_chk_vf=None):
647
 
        """Filter the texts of inventories, regenerating CHKs to make sure they
648
 
        are canonical.
649
 
        """
650
 
        total_keys = len(keys)
651
 
        target_chk_vf = versionedfile.NoDupeAddLinesDecorator(target_chk_vf)
652
 
        def _filtered_inv_stream():
653
 
            stream = source_vf.get_record_stream(keys, 'groupcompress', True)
654
 
            search_key_name = None
655
 
            for idx, record in enumerate(stream):
656
 
                # Inventories should always be with revisions; assume success.
657
 
                bytes = record.get_bytes_as('fulltext')
658
 
                chk_inv = inventory.CHKInventory.deserialise(
659
 
                    source_chk_vf, bytes, record.key)
660
 
                if pb is not None:
661
 
                    pb.update('inv', idx, total_keys)
662
 
                chk_inv.id_to_entry._ensure_root()
663
 
                if search_key_name is None:
664
 
                    # Find the name corresponding to the search_key_func
665
 
                    search_key_reg = chk_map.search_key_registry
666
 
                    for search_key_name, func in search_key_reg.iteritems():
667
 
                        if func == chk_inv.id_to_entry._search_key_func:
668
 
                            break
669
 
                canonical_inv = inventory.CHKInventory.from_inventory(
670
 
                    target_chk_vf, chk_inv,
671
 
                    maximum_size=chk_inv.id_to_entry._root_node._maximum_size,
672
 
                    search_key_name=search_key_name)
673
 
                if chk_inv.id_to_entry.key() != canonical_inv.id_to_entry.key():
674
 
                    trace.mutter(
675
 
                        'Non-canonical CHK map for id_to_entry of inv: %s '
676
 
                        '(root is %s, should be %s)' % (chk_inv.revision_id,
677
 
                        chk_inv.id_to_entry.key()[0],
678
 
                        canonical_inv.id_to_entry.key()[0]))
679
 
                    self._data_changed = True
680
 
                p_id_map = chk_inv.parent_id_basename_to_file_id
681
 
                p_id_map._ensure_root()
682
 
                canon_p_id_map = canonical_inv.parent_id_basename_to_file_id
683
 
                if p_id_map.key() != canon_p_id_map.key():
684
 
                    trace.mutter(
685
 
                        'Non-canonical CHK map for parent_id_to_basename of '
686
 
                        'inv: %s (root is %s, should be %s)'
687
 
                        % (chk_inv.revision_id, p_id_map.key()[0],
688
 
                           canon_p_id_map.key()[0]))
689
 
                    self._data_changed = True
690
 
                yield versionedfile.ChunkedContentFactory(record.key,
691
 
                        record.parents, record.sha1,
692
 
                        canonical_inv.to_lines())
693
 
            # We have finished processing all of the inventory records, we
694
 
            # don't need these sets anymore
695
 
        return _filtered_inv_stream()
696
 
 
697
 
    def _use_pack(self, new_pack):
698
 
        """Override _use_pack to check for reconcile having changed content."""
699
 
        return new_pack.data_inserted() and self._data_changed
700
 
 
701
 
 
702
540
class GCRepositoryPackCollection(RepositoryPackCollection):
703
541
 
704
542
    pack_factory = GCPack
705
 
    resumed_pack_factory = ResumedGCPack
706
 
    normal_packer_class = GCCHKPacker
707
 
    optimising_packer_class = GCCHKPacker
708
 
 
709
 
    def _check_new_inventories(self):
710
 
        """Detect missing inventories or chk root entries for the new revisions
711
 
        in this write group.
712
 
 
713
 
        :returns: list of strs, summarising any problems found.  If the list is
714
 
            empty no problems were found.
 
543
 
 
544
    def _already_packed(self):
 
545
        """Is the collection already packed?"""
 
546
        # Always repack GC repositories for now
 
547
        return False
 
548
 
 
549
    def _execute_pack_operations(self, pack_operations,
 
550
                                 _packer_class=GCCHKPacker,
 
551
                                 reload_func=None):
 
552
        """Execute a series of pack operations.
 
553
 
 
554
        :param pack_operations: A list of [revision_count, packs_to_combine].
 
555
        :param _packer_class: The class of packer to use (default: Packer).
 
556
        :return: None.
715
557
        """
716
 
        # Ensure that all revisions added in this write group have:
717
 
        #   - corresponding inventories,
718
 
        #   - chk root entries for those inventories,
719
 
        #   - and any present parent inventories have their chk root
720
 
        #     entries too.
721
 
        # And all this should be independent of any fallback repository.
722
 
        problems = []
723
 
        key_deps = self.repo.revisions._index._key_dependencies
724
 
        new_revisions_keys = key_deps.get_new_keys()
725
 
        no_fallback_inv_index = self.repo.inventories._index
726
 
        no_fallback_chk_bytes_index = self.repo.chk_bytes._index
727
 
        no_fallback_texts_index = self.repo.texts._index
728
 
        inv_parent_map = no_fallback_inv_index.get_parent_map(
729
 
            new_revisions_keys)
730
 
        # Are any inventories for corresponding to the new revisions missing?
731
 
        corresponding_invs = set(inv_parent_map)
732
 
        missing_corresponding = set(new_revisions_keys)
733
 
        missing_corresponding.difference_update(corresponding_invs)
734
 
        if missing_corresponding:
735
 
            problems.append("inventories missing for revisions %s" %
736
 
                (sorted(missing_corresponding),))
737
 
            return problems
738
 
        # Are any chk root entries missing for any inventories?  This includes
739
 
        # any present parent inventories, which may be used when calculating
740
 
        # deltas for streaming.
741
 
        all_inv_keys = set(corresponding_invs)
742
 
        for parent_inv_keys in inv_parent_map.itervalues():
743
 
            all_inv_keys.update(parent_inv_keys)
744
 
        # Filter out ghost parents.
745
 
        all_inv_keys.intersection_update(
746
 
            no_fallback_inv_index.get_parent_map(all_inv_keys))
747
 
        parent_invs_only_keys = all_inv_keys.symmetric_difference(
748
 
            corresponding_invs)
749
 
        all_missing = set()
750
 
        inv_ids = [key[-1] for key in all_inv_keys]
751
 
        parent_invs_only_ids = [key[-1] for key in parent_invs_only_keys]
752
 
        root_key_info = _build_interesting_key_sets(
753
 
            self.repo, inv_ids, parent_invs_only_ids)
754
 
        expected_chk_roots = root_key_info.all_keys()
755
 
        present_chk_roots = no_fallback_chk_bytes_index.get_parent_map(
756
 
            expected_chk_roots)
757
 
        missing_chk_roots = expected_chk_roots.difference(present_chk_roots)
758
 
        if missing_chk_roots:
759
 
            problems.append("missing referenced chk root keys: %s"
760
 
                % (sorted(missing_chk_roots),))
761
 
            # Don't bother checking any further.
762
 
            return problems
763
 
        # Find all interesting chk_bytes records, and make sure they are
764
 
        # present, as well as the text keys they reference.
765
 
        chk_bytes_no_fallbacks = self.repo.chk_bytes.without_fallbacks()
766
 
        chk_bytes_no_fallbacks._search_key_func = \
767
 
            self.repo.chk_bytes._search_key_func
768
 
        chk_diff = chk_map.iter_interesting_nodes(
769
 
            chk_bytes_no_fallbacks, root_key_info.interesting_root_keys,
770
 
            root_key_info.uninteresting_root_keys)
771
 
        text_keys = set()
772
 
        try:
773
 
            for record in _filter_text_keys(chk_diff, text_keys,
774
 
                                            chk_map._bytes_to_text_key):
775
 
                pass
776
 
        except errors.NoSuchRevision, e:
777
 
            # XXX: It would be nice if we could give a more precise error here.
778
 
            problems.append("missing chk node(s) for id_to_entry maps")
779
 
        chk_diff = chk_map.iter_interesting_nodes(
780
 
            chk_bytes_no_fallbacks, root_key_info.interesting_pid_root_keys,
781
 
            root_key_info.uninteresting_pid_root_keys)
782
 
        try:
783
 
            for interesting_rec, interesting_map in chk_diff:
784
 
                pass
785
 
        except errors.NoSuchRevision, e:
786
 
            problems.append(
787
 
                "missing chk node(s) for parent_id_basename_to_file_id maps")
788
 
        present_text_keys = no_fallback_texts_index.get_parent_map(text_keys)
789
 
        missing_text_keys = text_keys.difference(present_text_keys)
790
 
        if missing_text_keys:
791
 
            problems.append("missing text keys: %r"
792
 
                % (sorted(missing_text_keys),))
793
 
        return problems
794
 
 
795
 
 
796
 
class CHKInventoryRepository(PackRepository):
797
 
    """subclass of PackRepository that uses CHK based inventories."""
 
558
        # XXX: Copied across from RepositoryPackCollection simply because we
 
559
        #      want to override the _packer_class ... :(
 
560
        for revision_count, packs in pack_operations:
 
561
            # we may have no-ops from the setup logic
 
562
            if len(packs) == 0:
 
563
                continue
 
564
            packer = GCCHKPacker(self, packs, '.autopack',
 
565
                                 reload_func=reload_func)
 
566
            try:
 
567
                packer.pack()
 
568
            except errors.RetryWithNewPacks:
 
569
                # An exception is propagating out of this context, make sure
 
570
                # this packer has cleaned up. Packer() doesn't set its new_pack
 
571
                # state into the RepositoryPackCollection object, so we only
 
572
                # have access to it directly here.
 
573
                if packer.new_pack is not None:
 
574
                    packer.new_pack.abort()
 
575
                raise
 
576
            for pack in packs:
 
577
                self._remove_pack_from_memory(pack)
 
578
        # record the newly available packs and stop advertising the old
 
579
        # packs
 
580
        self._save_pack_names(clear_obsolete_packs=True)
 
581
        # Move the old packs out of the way now they are no longer referenced.
 
582
        for revision_count, packs in pack_operations:
 
583
            self._obsolete_packs(packs)
 
584
 
 
585
 
 
586
class CHKInventoryRepository(KnitPackRepository):
 
587
    """subclass of KnitPackRepository that uses CHK based inventories."""
798
588
 
799
589
    def __init__(self, _format, a_bzrdir, control_files, _commit_builder_class,
800
590
        _serializer):
801
591
        """Overridden to change pack collection class."""
802
 
        super(CHKInventoryRepository, self).__init__(_format, a_bzrdir,
803
 
            control_files, _commit_builder_class, _serializer)
 
592
        KnitPackRepository.__init__(self, _format, a_bzrdir, control_files,
 
593
            _commit_builder_class, _serializer)
 
594
        # and now replace everything it did :)
804
595
        index_transport = self._transport.clone('indices')
805
596
        self._pack_collection = GCRepositoryPackCollection(self,
806
597
            self._transport, index_transport,
813
604
        self.inventories = GroupCompressVersionedFiles(
814
605
            _GCGraphIndex(self._pack_collection.inventory_index.combined_index,
815
606
                add_callback=self._pack_collection.inventory_index.add_callback,
816
 
                parents=True, is_locked=self.is_locked,
817
 
                inconsistency_fatal=False),
 
607
                parents=True, is_locked=self.is_locked),
818
608
            access=self._pack_collection.inventory_index.data_access)
819
609
        self.revisions = GroupCompressVersionedFiles(
820
610
            _GCGraphIndex(self._pack_collection.revision_index.combined_index,
821
611
                add_callback=self._pack_collection.revision_index.add_callback,
822
 
                parents=True, is_locked=self.is_locked,
823
 
                track_external_parent_refs=True, track_new_keys=True),
 
612
                parents=True, is_locked=self.is_locked),
824
613
            access=self._pack_collection.revision_index.data_access,
825
614
            delta=False)
826
615
        self.signatures = GroupCompressVersionedFiles(
827
616
            _GCGraphIndex(self._pack_collection.signature_index.combined_index,
828
617
                add_callback=self._pack_collection.signature_index.add_callback,
829
 
                parents=False, is_locked=self.is_locked,
830
 
                inconsistency_fatal=False),
 
618
                parents=False, is_locked=self.is_locked),
831
619
            access=self._pack_collection.signature_index.data_access,
832
620
            delta=False)
833
621
        self.texts = GroupCompressVersionedFiles(
834
622
            _GCGraphIndex(self._pack_collection.text_index.combined_index,
835
623
                add_callback=self._pack_collection.text_index.add_callback,
836
 
                parents=True, is_locked=self.is_locked,
837
 
                inconsistency_fatal=False),
 
624
                parents=True, is_locked=self.is_locked),
838
625
            access=self._pack_collection.text_index.data_access)
839
626
        # No parents, individual CHK pages don't have specific ancestry
840
627
        self.chk_bytes = GroupCompressVersionedFiles(
841
628
            _GCGraphIndex(self._pack_collection.chk_index.combined_index,
842
629
                add_callback=self._pack_collection.chk_index.add_callback,
843
 
                parents=False, is_locked=self.is_locked,
844
 
                inconsistency_fatal=False),
 
630
                parents=False, is_locked=self.is_locked),
845
631
            access=self._pack_collection.chk_index.data_access)
846
 
        search_key_name = self._format._serializer.search_key_name
847
 
        search_key_func = chk_map.search_key_registry.get(search_key_name)
848
 
        self.chk_bytes._search_key_func = search_key_func
849
632
        # True when the repository object is 'write locked' (as opposed to the
850
633
        # physical lock only taken out around changes to the pack-names list.)
851
634
        # Another way to represent this would be a decorator around the control
874
657
        return self._inventory_add_lines(revision_id, parents,
875
658
            inv_lines, check_content=False)
876
659
 
877
 
    def _create_inv_from_null(self, delta, revision_id):
878
 
        """This will mutate new_inv directly.
879
 
 
880
 
        This is a simplified form of create_by_apply_delta which knows that all
881
 
        the old values must be None, so everything is a create.
882
 
        """
883
 
        serializer = self._format._serializer
884
 
        new_inv = inventory.CHKInventory(serializer.search_key_name)
885
 
        new_inv.revision_id = revision_id
886
 
        entry_to_bytes = new_inv._entry_to_bytes
887
 
        id_to_entry_dict = {}
888
 
        parent_id_basename_dict = {}
889
 
        for old_path, new_path, file_id, entry in delta:
890
 
            if old_path is not None:
891
 
                raise ValueError('Invalid delta, somebody tried to delete %r'
892
 
                                 ' from the NULL_REVISION'
893
 
                                 % ((old_path, file_id),))
894
 
            if new_path is None:
895
 
                raise ValueError('Invalid delta, delta from NULL_REVISION has'
896
 
                                 ' no new_path %r' % (file_id,))
897
 
            if new_path == '':
898
 
                new_inv.root_id = file_id
899
 
                parent_id_basename_key = StaticTuple('', '').intern()
900
 
            else:
901
 
                utf8_entry_name = entry.name.encode('utf-8')
902
 
                parent_id_basename_key = StaticTuple(entry.parent_id,
903
 
                                                     utf8_entry_name).intern()
904
 
            new_value = entry_to_bytes(entry)
905
 
            # Populate Caches?
906
 
            # new_inv._path_to_fileid_cache[new_path] = file_id
907
 
            key = StaticTuple(file_id).intern()
908
 
            id_to_entry_dict[key] = new_value
909
 
            parent_id_basename_dict[parent_id_basename_key] = file_id
910
 
 
911
 
        new_inv._populate_from_dicts(self.chk_bytes, id_to_entry_dict,
912
 
            parent_id_basename_dict, maximum_size=serializer.maximum_size)
913
 
        return new_inv
914
 
 
915
660
    def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
916
661
                               parents, basis_inv=None, propagate_caches=False):
917
662
        """Add a new inventory expressed as a delta against another revision.
937
682
            repository format specific) of the serialized inventory, and the
938
683
            resulting inventory.
939
684
        """
 
685
        if basis_revision_id == _mod_revision.NULL_REVISION:
 
686
            return KnitPackRepository.add_inventory_by_delta(self,
 
687
                basis_revision_id, delta, new_revision_id, parents)
940
688
        if not self.is_in_write_group():
941
689
            raise AssertionError("%r not in write group" % (self,))
942
690
        _mod_revision.check_not_reserved_id(new_revision_id)
943
 
        basis_tree = None
944
 
        if basis_inv is None:
945
 
            if basis_revision_id == _mod_revision.NULL_REVISION:
946
 
                new_inv = self._create_inv_from_null(delta, new_revision_id)
947
 
                if new_inv.root_id is None:
948
 
                    raise errors.RootMissing()
949
 
                inv_lines = new_inv.to_lines()
950
 
                return self._inventory_add_lines(new_revision_id, parents,
951
 
                    inv_lines, check_content=False), new_inv
952
 
            else:
953
 
                basis_tree = self.revision_tree(basis_revision_id)
954
 
                basis_tree.lock_read()
 
691
        basis_tree = self.revision_tree(basis_revision_id)
 
692
        basis_tree.lock_read()
 
693
        try:
 
694
            if basis_inv is None:
955
695
                basis_inv = basis_tree.inventory
956
 
        try:
957
696
            result = basis_inv.create_by_apply_delta(delta, new_revision_id,
958
697
                propagate_caches=propagate_caches)
959
698
            inv_lines = result.to_lines()
960
699
            return self._inventory_add_lines(new_revision_id, parents,
961
700
                inv_lines, check_content=False), result
962
701
        finally:
963
 
            if basis_tree is not None:
964
 
                basis_tree.unlock()
965
 
 
966
 
    def _deserialise_inventory(self, revision_id, bytes):
967
 
        return inventory.CHKInventory.deserialise(self.chk_bytes, bytes,
968
 
            (revision_id,))
969
 
 
970
 
    def _iter_inventories(self, revision_ids, ordering):
 
702
            basis_tree.unlock()
 
703
 
 
704
    def _iter_inventories(self, revision_ids):
971
705
        """Iterate over many inventory objects."""
972
 
        if ordering is None:
973
 
            ordering = 'unordered'
974
706
        keys = [(revision_id,) for revision_id in revision_ids]
975
 
        stream = self.inventories.get_record_stream(keys, ordering, True)
 
707
        stream = self.inventories.get_record_stream(keys, 'unordered', True)
976
708
        texts = {}
977
709
        for record in stream:
978
710
            if record.storage_kind != 'absent':
982
714
        for key in keys:
983
715
            yield inventory.CHKInventory.deserialise(self.chk_bytes, texts[key], key)
984
716
 
985
 
    def _iter_inventory_xmls(self, revision_ids, ordering):
986
 
        # Without a native 'xml' inventory, this method doesn't make sense.
987
 
        # However older working trees, and older bundles want it - so we supply
988
 
        # it allowing _get_inventory_xml to work. Bundles currently use the
989
 
        # serializer directly; this also isn't ideal, but there isn't an xml
990
 
        # iteration interface offered at all for repositories. We could make
991
 
        # _iter_inventory_xmls be part of the contract, even if kept private.
992
 
        inv_to_str = self._serializer.write_inventory_to_string
993
 
        for inv in self.iter_inventories(revision_ids, ordering=ordering):
994
 
            yield inv_to_str(inv), inv.revision_id
995
 
 
996
 
    def _find_present_inventory_keys(self, revision_keys):
997
 
        parent_map = self.inventories.get_parent_map(revision_keys)
998
 
        present_inventory_keys = set(k for k in parent_map)
999
 
        return present_inventory_keys
 
717
    def _iter_inventory_xmls(self, revision_ids):
 
718
        # Without a native 'xml' inventory, this method doesn't make sense, so
 
719
        # make it raise to trap naughty direct users.
 
720
        raise NotImplementedError(self._iter_inventory_xmls)
 
721
 
 
722
    def _find_revision_outside_set(self, revision_ids):
 
723
        revision_set = frozenset(revision_ids)
 
724
        for revid in revision_ids:
 
725
            parent_ids = self.get_parent_map([revid]).get(revid, ())
 
726
            for parent in parent_ids:
 
727
                if parent in revision_set:
 
728
                    # Parent is not outside the set
 
729
                    continue
 
730
                if parent not in self.get_parent_map([parent]):
 
731
                    # Parent is a ghost
 
732
                    continue
 
733
                return parent
 
734
        return _mod_revision.NULL_REVISION
 
735
 
 
736
    def _find_file_keys_to_fetch(self, revision_ids, pb):
 
737
        rich_root = self.supports_rich_root()
 
738
        revision_outside_set = self._find_revision_outside_set(revision_ids)
 
739
        if revision_outside_set == _mod_revision.NULL_REVISION:
 
740
            uninteresting_root_keys = set()
 
741
        else:
 
742
            uninteresting_inv = self.get_inventory(revision_outside_set)
 
743
            uninteresting_root_keys = set([uninteresting_inv.id_to_entry.key()])
 
744
        interesting_root_keys = set()
 
745
        for idx, inv in enumerate(self.iter_inventories(revision_ids)):
 
746
            interesting_root_keys.add(inv.id_to_entry.key())
 
747
        revision_ids = frozenset(revision_ids)
 
748
        file_id_revisions = {}
 
749
        bytes_to_info = inventory.CHKInventory._bytes_to_utf8name_key
 
750
        for record, items in chk_map.iter_interesting_nodes(self.chk_bytes,
 
751
                    interesting_root_keys, uninteresting_root_keys,
 
752
                    pb=pb):
 
753
            # This is cheating a bit to use the last grabbed 'inv', but it
 
754
            # works
 
755
            for name, bytes in items:
 
756
                (name_utf8, file_id, revision_id) = bytes_to_info(bytes)
 
757
                if not rich_root and name_utf8 == '':
 
758
                    continue
 
759
                if revision_id in revision_ids:
 
760
                    # Would we rather build this up into file_id => revision
 
761
                    # maps?
 
762
                    try:
 
763
                        file_id_revisions[file_id].add(revision_id)
 
764
                    except KeyError:
 
765
                        file_id_revisions[file_id] = set([revision_id])
 
766
        for file_id, revisions in file_id_revisions.iteritems():
 
767
            yield ('file', file_id, revisions)
1000
768
 
1001
769
    def fileids_altered_by_revision_ids(self, revision_ids, _inv_weave=None):
1002
770
        """Find the file ids and versions affected by revisions.
1008
776
            revision_ids. Each altered file-ids has the exact revision_ids that
1009
777
            altered it listed explicitly.
1010
778
        """
1011
 
        rich_root = self.supports_rich_root()
1012
 
        bytes_to_info = inventory.CHKInventory._bytes_to_utf8name_key
1013
 
        file_id_revisions = {}
 
779
        rich_roots = self.supports_rich_root()
 
780
        result = {}
1014
781
        pb = ui.ui_factory.nested_progress_bar()
1015
782
        try:
1016
 
            revision_keys = [(r,) for r in revision_ids]
1017
 
            parent_keys = self._find_parent_keys_of_revisions(revision_keys)
1018
 
            # TODO: instead of using _find_present_inventory_keys, change the
1019
 
            #       code paths to allow missing inventories to be tolerated.
1020
 
            #       However, we only want to tolerate missing parent
1021
 
            #       inventories, not missing inventories for revision_ids
1022
 
            present_parent_inv_keys = self._find_present_inventory_keys(
1023
 
                                        parent_keys)
1024
 
            present_parent_inv_ids = set(
1025
 
                [k[-1] for k in present_parent_inv_keys])
1026
 
            inventories_to_read = set(revision_ids)
1027
 
            inventories_to_read.update(present_parent_inv_ids)
1028
 
            root_key_info = _build_interesting_key_sets(
1029
 
                self, inventories_to_read, present_parent_inv_ids)
1030
 
            interesting_root_keys = root_key_info.interesting_root_keys
1031
 
            uninteresting_root_keys = root_key_info.uninteresting_root_keys
1032
 
            chk_bytes = self.chk_bytes
1033
 
            for record, items in chk_map.iter_interesting_nodes(chk_bytes,
1034
 
                        interesting_root_keys, uninteresting_root_keys,
1035
 
                        pb=pb):
1036
 
                for name, bytes in items:
1037
 
                    (name_utf8, file_id, revision_id) = bytes_to_info(bytes)
1038
 
                    # TODO: consider interning file_id, revision_id here, or
1039
 
                    #       pushing that intern() into bytes_to_info()
1040
 
                    # TODO: rich_root should always be True here, for all
1041
 
                    #       repositories that support chk_bytes
1042
 
                    if not rich_root and name_utf8 == '':
1043
 
                        continue
1044
 
                    try:
1045
 
                        file_id_revisions[file_id].add(revision_id)
1046
 
                    except KeyError:
1047
 
                        file_id_revisions[file_id] = set([revision_id])
 
783
            total = len(revision_ids)
 
784
            for pos, inv in enumerate(self.iter_inventories(revision_ids)):
 
785
                pb.update("Finding text references", pos, total)
 
786
                for entry in inv.iter_just_entries():
 
787
                    if entry.revision != inv.revision_id:
 
788
                        continue
 
789
                    if not rich_roots and entry.file_id == inv.root_id:
 
790
                        continue
 
791
                    alterations = result.setdefault(entry.file_id, set([]))
 
792
                    alterations.add(entry.revision)
 
793
            return result
1048
794
        finally:
1049
795
            pb.finished()
1050
 
        return file_id_revisions
1051
796
 
1052
797
    def find_text_key_references(self):
1053
798
        """Find the text key references within the repository.
1081
826
        finally:
1082
827
            pb.finished()
1083
828
 
1084
 
    @needs_write_lock
1085
 
    def reconcile_canonicalize_chks(self):
1086
 
        """Reconcile this repository to make sure all CHKs are in canonical
1087
 
        form.
1088
 
        """
1089
 
        from bzrlib.reconcile import PackReconciler
1090
 
        reconciler = PackReconciler(self, thorough=True, canonicalize_chks=True)
1091
 
        reconciler.reconcile()
1092
 
        return reconciler
1093
 
 
1094
829
    def _reconcile_pack(self, collection, packs, extension, revs, pb):
1095
830
        packer = GCCHKReconcilePacker(collection, packs, extension)
1096
831
        return packer.pack(pb)
1097
832
 
1098
 
    def _canonicalize_chks_pack(self, collection, packs, extension, revs, pb):
1099
 
        packer = GCCHKCanonicalizingPacker(collection, packs, extension, revs)
1100
 
        return packer.pack(pb)
1101
 
 
1102
833
    def _get_source(self, to_format):
1103
834
        """Return a source for streaming from this repository."""
1104
 
        if self._format._serializer == to_format._serializer:
 
835
        if isinstance(to_format, remote.RemoteRepositoryFormat):
 
836
            # Can't just check attributes on to_format with the current code,
 
837
            # work around this:
 
838
            to_format._ensure_real()
 
839
            to_format = to_format._custom_format
 
840
        if to_format.__class__ is self._format.__class__:
1105
841
            # We must be exactly the same format, otherwise stuff like the chk
1106
 
            # page layout might be different.
1107
 
            # Actually, this test is just slightly looser than exact so that
1108
 
            # CHK2 <-> 2a transfers will work.
 
842
            # page layout might be different
1109
843
            return GroupCHKStreamSource(self, to_format)
1110
844
        return super(CHKInventoryRepository, self)._get_source(to_format)
1111
845
 
1112
 
    def _find_inconsistent_revision_parents(self, revisions_iterator=None):
1113
 
        """Find revisions with different parent lists in the revision object
1114
 
        and in the index graph.
1115
 
 
1116
 
        :param revisions_iterator: None, or an iterator of (revid,
1117
 
            Revision-or-None). This iterator controls the revisions checked.
1118
 
        :returns: an iterator yielding tuples of (revison-id, parents-in-index,
1119
 
            parents-in-revision).
1120
 
        """
1121
 
        if not self.is_locked():
1122
 
            raise AssertionError()
1123
 
        vf = self.revisions
1124
 
        if revisions_iterator is None:
1125
 
            revisions_iterator = self._iter_revisions(None)
1126
 
        for revid, revision in revisions_iterator:
1127
 
            if revision is None:
1128
 
                pass
1129
 
            parent_map = vf.get_parent_map([(revid,)])
1130
 
            parents_according_to_index = tuple(parent[-1] for parent in
1131
 
                parent_map[(revid,)])
1132
 
            parents_according_to_revision = tuple(revision.parent_ids)
1133
 
            if parents_according_to_index != parents_according_to_revision:
1134
 
                yield (revid, parents_according_to_index,
1135
 
                    parents_according_to_revision)
1136
 
 
1137
 
    def _check_for_inconsistent_revision_parents(self):
1138
 
        inconsistencies = list(self._find_inconsistent_revision_parents())
1139
 
        if inconsistencies:
1140
 
            raise errors.BzrCheckError(
1141
 
                "Revision index has inconsistent parents.")
1142
 
 
1143
 
 
1144
 
class GroupCHKStreamSource(StreamSource):
 
846
    def suspend_write_group(self):
 
847
        raise errors.UnsuspendableWriteGroup(self)
 
848
 
 
849
    def _resume_write_group(self, tokens):
 
850
        raise errors.UnsuspendableWriteGroup(self)
 
851
 
 
852
 
 
853
class GroupCHKStreamSource(repository.StreamSource):
1145
854
    """Used when both the source and target repo are GroupCHK repos."""
1146
855
 
1147
856
    def __init__(self, from_repository, to_format):
1149
858
        super(GroupCHKStreamSource, self).__init__(from_repository, to_format)
1150
859
        self._revision_keys = None
1151
860
        self._text_keys = None
1152
 
        self._text_fetch_order = 'groupcompress'
1153
861
        self._chk_id_roots = None
1154
862
        self._chk_p_id_roots = None
1155
863
 
1156
 
    def _get_inventory_stream(self, inventory_keys, allow_absent=False):
 
864
    def _get_filtered_inv_stream(self):
1157
865
        """Get a stream of inventory texts.
1158
866
 
1159
867
        When this function returns, self._chk_id_roots and self._chk_p_id_roots
1165
873
            id_roots_set = set()
1166
874
            p_id_roots_set = set()
1167
875
            source_vf = self.from_repository.inventories
1168
 
            stream = source_vf.get_record_stream(inventory_keys,
 
876
            stream = source_vf.get_record_stream(self._revision_keys,
1169
877
                                                 'groupcompress', True)
1170
878
            for record in stream:
1171
 
                if record.storage_kind == 'absent':
1172
 
                    if allow_absent:
1173
 
                        continue
1174
 
                    else:
1175
 
                        raise errors.NoSuchRevision(self, record.key)
1176
879
                bytes = record.get_bytes_as('fulltext')
1177
880
                chk_inv = inventory.CHKInventory.deserialise(None, bytes,
1178
881
                                                             record.key)
1194
897
            p_id_roots_set.clear()
1195
898
        return ('inventories', _filtered_inv_stream())
1196
899
 
1197
 
    def _get_filtered_chk_streams(self, excluded_revision_keys):
 
900
    def _get_filtered_chk_streams(self, excluded_keys):
1198
901
        self._text_keys = set()
1199
 
        excluded_revision_keys.discard(_mod_revision.NULL_REVISION)
1200
 
        if not excluded_revision_keys:
 
902
        excluded_keys.discard(_mod_revision.NULL_REVISION)
 
903
        if not excluded_keys:
1201
904
            uninteresting_root_keys = set()
1202
905
            uninteresting_pid_root_keys = set()
1203
906
        else:
1204
 
            # filter out any excluded revisions whose inventories are not
1205
 
            # actually present
1206
 
            # TODO: Update Repository.iter_inventories() to add
1207
 
            #       ignore_missing=True
1208
 
            present_keys = self.from_repository._find_present_inventory_keys(
1209
 
                            excluded_revision_keys)
1210
 
            present_ids = [k[-1] for k in present_keys]
1211
907
            uninteresting_root_keys = set()
1212
908
            uninteresting_pid_root_keys = set()
1213
 
            for inv in self.from_repository.iter_inventories(present_ids):
 
909
            for inv in self.from_repository.iter_inventories(excluded_keys):
1214
910
                uninteresting_root_keys.add(inv.id_to_entry.key())
1215
911
                uninteresting_pid_root_keys.add(
1216
912
                    inv.parent_id_basename_to_file_id.key())
 
913
        bytes_to_info = inventory.CHKInventory._bytes_to_utf8name_key
1217
914
        chk_bytes = self.from_repository.chk_bytes
1218
915
        def _filter_id_to_entry():
1219
 
            interesting_nodes = chk_map.iter_interesting_nodes(chk_bytes,
1220
 
                        self._chk_id_roots, uninteresting_root_keys)
1221
 
            for record in _filter_text_keys(interesting_nodes, self._text_keys,
1222
 
                    chk_map._bytes_to_text_key):
 
916
            for record, items in chk_map.iter_interesting_nodes(chk_bytes,
 
917
                        self._chk_id_roots, uninteresting_root_keys):
 
918
                for name, bytes in items:
 
919
                    # Note: we don't care about name_utf8, because we are always
 
920
                    # rich-root = True
 
921
                    _, file_id, revision_id = bytes_to_info(bytes)
 
922
                    self._text_keys.add((file_id, revision_id))
1223
923
                if record is not None:
1224
924
                    yield record
1225
 
            # Consumed
1226
 
            self._chk_id_roots = None
1227
925
        yield 'chk_bytes', _filter_id_to_entry()
1228
926
        def _get_parent_id_basename_to_file_id_pages():
1229
927
            for record, items in chk_map.iter_interesting_nodes(chk_bytes,
1230
928
                        self._chk_p_id_roots, uninteresting_pid_root_keys):
1231
929
                if record is not None:
1232
930
                    yield record
1233
 
            # Consumed
1234
 
            self._chk_p_id_roots = None
1235
931
        yield 'chk_bytes', _get_parent_id_basename_to_file_id_pages()
1236
932
 
1237
933
    def _get_text_stream(self):
1238
934
        # Note: We know we don't have to handle adding root keys, because both
1239
 
        # the source and target are the identical network name.
1240
 
        text_stream = self.from_repository.texts.get_record_stream(
1241
 
                        self._text_keys, self._text_fetch_order, False)
1242
 
        return ('texts', text_stream)
 
935
        # the source and target are GCCHK, and those always support rich-roots
 
936
        # We may want to request as 'unordered', in case the source has done a
 
937
        # 'split' packing
 
938
        return ('texts', self.from_repository.texts.get_record_stream(
 
939
                            self._text_keys, 'groupcompress', False))
1243
940
 
1244
941
    def get_stream(self, search):
1245
 
        def wrap_and_count(pb, rc, stream):
1246
 
            """Yield records from stream while showing progress."""
1247
 
            count = 0
1248
 
            for record in stream:
1249
 
                if count == rc.STEP:
1250
 
                    rc.increment(count)
1251
 
                    pb.update('Estimate', rc.current, rc.max)
1252
 
                    count = 0
1253
 
                count += 1
1254
 
                yield record
1255
 
 
1256
942
        revision_ids = search.get_keys()
1257
 
        pb = ui.ui_factory.nested_progress_bar()
1258
 
        rc = self._record_counter
1259
 
        self._record_counter.setup(len(revision_ids))
1260
943
        for stream_info in self._fetch_revision_texts(revision_ids):
1261
 
            yield (stream_info[0],
1262
 
                wrap_and_count(pb, rc, stream_info[1]))
 
944
            yield stream_info
1263
945
        self._revision_keys = [(rev_id,) for rev_id in revision_ids]
1264
 
        # TODO: The keys to exclude might be part of the search recipe
1265
 
        # For now, exclude all parents that are at the edge of ancestry, for
1266
 
        # which we have inventories
1267
 
        from_repo = self.from_repository
1268
 
        parent_keys = from_repo._find_parent_keys_of_revisions(
1269
 
                        self._revision_keys)
1270
 
        self.from_repository.revisions.clear_cache()
1271
 
        self.from_repository.signatures.clear_cache()
1272
 
        # Clear the repo's get_parent_map cache too.
1273
 
        self.from_repository._unstacked_provider.disable_cache()
1274
 
        self.from_repository._unstacked_provider.enable_cache()
1275
 
        s = self._get_inventory_stream(self._revision_keys)
1276
 
        yield (s[0], wrap_and_count(pb, rc, s[1]))
1277
 
        self.from_repository.inventories.clear_cache()
1278
 
        for stream_info in self._get_filtered_chk_streams(parent_keys):
1279
 
            yield (stream_info[0], wrap_and_count(pb, rc, stream_info[1]))
1280
 
        self.from_repository.chk_bytes.clear_cache()
1281
 
        s = self._get_text_stream()
1282
 
        yield (s[0], wrap_and_count(pb, rc, s[1]))
1283
 
        self.from_repository.texts.clear_cache()
1284
 
        pb.update('Done', rc.max, rc.max)
1285
 
        pb.finished()
1286
 
 
1287
 
    def get_stream_for_missing_keys(self, missing_keys):
1288
 
        # missing keys can only occur when we are byte copying and not
1289
 
        # translating (because translation means we don't send
1290
 
        # unreconstructable deltas ever).
1291
 
        missing_inventory_keys = set()
1292
 
        for key in missing_keys:
1293
 
            if key[0] != 'inventories':
1294
 
                raise AssertionError('The only missing keys we should'
1295
 
                    ' be filling in are inventory keys, not %s'
1296
 
                    % (key[0],))
1297
 
            missing_inventory_keys.add(key[1:])
1298
 
        if self._chk_id_roots or self._chk_p_id_roots:
1299
 
            raise AssertionError('Cannot call get_stream_for_missing_keys'
1300
 
                ' until all of get_stream() has been consumed.')
1301
 
        # Yield the inventory stream, so we can find the chk stream
1302
 
        # Some of the missing_keys will be missing because they are ghosts.
1303
 
        # As such, we can ignore them. The Sink is required to verify there are
1304
 
        # no unavailable texts when the ghost inventories are not filled in.
1305
 
        yield self._get_inventory_stream(missing_inventory_keys,
1306
 
                                         allow_absent=True)
1307
 
        # We use the empty set for excluded_revision_keys, to make it clear
1308
 
        # that we want to transmit all referenced chk pages.
1309
 
        for stream_info in self._get_filtered_chk_streams(set()):
 
946
        yield self._get_filtered_inv_stream()
 
947
        # The keys to exclude are part of the search recipe
 
948
        _, _, exclude_keys, _ = search.get_recipe()
 
949
        for stream_info in self._get_filtered_chk_streams(exclude_keys):
1310
950
            yield stream_info
1311
 
 
1312
 
 
1313
 
class _InterestingKeyInfo(object):
1314
 
    def __init__(self):
1315
 
        self.interesting_root_keys = set()
1316
 
        self.interesting_pid_root_keys = set()
1317
 
        self.uninteresting_root_keys = set()
1318
 
        self.uninteresting_pid_root_keys = set()
1319
 
 
1320
 
    def all_interesting(self):
1321
 
        return self.interesting_root_keys.union(self.interesting_pid_root_keys)
1322
 
 
1323
 
    def all_uninteresting(self):
1324
 
        return self.uninteresting_root_keys.union(
1325
 
            self.uninteresting_pid_root_keys)
1326
 
 
1327
 
    def all_keys(self):
1328
 
        return self.all_interesting().union(self.all_uninteresting())
1329
 
 
1330
 
 
1331
 
def _build_interesting_key_sets(repo, inventory_ids, parent_only_inv_ids):
1332
 
    result = _InterestingKeyInfo()
1333
 
    for inv in repo.iter_inventories(inventory_ids, 'unordered'):
1334
 
        root_key = inv.id_to_entry.key()
1335
 
        pid_root_key = inv.parent_id_basename_to_file_id.key()
1336
 
        if inv.revision_id in parent_only_inv_ids:
1337
 
            result.uninteresting_root_keys.add(root_key)
1338
 
            result.uninteresting_pid_root_keys.add(pid_root_key)
1339
 
        else:
1340
 
            result.interesting_root_keys.add(root_key)
1341
 
            result.interesting_pid_root_keys.add(pid_root_key)
1342
 
    return result
1343
 
 
1344
 
 
1345
 
def _filter_text_keys(interesting_nodes_iterable, text_keys, bytes_to_text_key):
1346
 
    """Iterate the result of iter_interesting_nodes, yielding the records
1347
 
    and adding to text_keys.
1348
 
    """
1349
 
    text_keys_update = text_keys.update
1350
 
    for record, items in interesting_nodes_iterable:
1351
 
        text_keys_update([bytes_to_text_key(b) for n,b in items])
1352
 
        yield record
1353
 
 
1354
 
 
1355
 
class RepositoryFormat2a(RepositoryFormatPack):
1356
 
    """A CHK repository that uses the bencode revision serializer."""
 
951
        yield self._get_text_stream()
 
952
 
 
953
 
 
954
class RepositoryFormatCHK1(RepositoryFormatPack):
 
955
    """A hashed CHK+group compress pack repository."""
1357
956
 
1358
957
    repository_class = CHKInventoryRepository
1359
 
    supports_external_lookups = True
1360
958
    supports_chks = True
 
959
    # For right now, setting this to True gives us InterModel1And2 rather
 
960
    # than InterDifferingSerializer
1361
961
    _commit_builder_class = PackRootCommitBuilder
1362
962
    rich_root_data = True
1363
 
    _serializer = chk_serializer.chk_bencode_serializer
 
963
    _serializer = chk_serializer.chk_serializer_255_bigpage
1364
964
    _commit_inv_deltas = True
1365
965
    # What index classes to use
1366
966
    index_builder_class = BTreeBuilder
1372
972
    # multiple in-a-row (and sharing strings). Topological is better
1373
973
    # for remote, because we access less data.
1374
974
    _fetch_order = 'unordered'
1375
 
    _fetch_uses_deltas = False # essentially ignored by the groupcompress code.
 
975
    _fetch_uses_deltas = True # essentially ignored by the groupcompress code.
1376
976
    fast_deltas = True
1377
 
    pack_compresses = True
1378
977
 
1379
978
    def _get_matching_bzrdir(self):
1380
 
        return bzrdir.format_registry.make_bzrdir('2a')
 
979
        return bzrdir.format_registry.make_bzrdir('development6-rich-root')
1381
980
 
1382
981
    def _ignore_setting_bzrdir(self, format):
1383
982
        pass
1385
984
    _matchingbzrdir = property(_get_matching_bzrdir, _ignore_setting_bzrdir)
1386
985
 
1387
986
    def get_format_string(self):
1388
 
        return ('Bazaar repository format 2a (needs bzr 1.16 or later)\n')
 
987
        """See RepositoryFormat.get_format_string()."""
 
988
        return ('Bazaar development format - group compression and chk inventory'
 
989
                ' (needs bzr.dev from 1.14)\n')
1389
990
 
1390
991
    def get_format_description(self):
1391
992
        """See RepositoryFormat.get_format_description()."""
1392
 
        return ("Repository format 2a - rich roots, group compression"
 
993
        return ("Development repository format - rich roots, group compression"
1393
994
            " and chk inventories")
1394
995
 
1395
 
 
1396
 
class RepositoryFormat2aSubtree(RepositoryFormat2a):
1397
 
    """A 2a repository format that supports nested trees.
1398
 
 
1399
 
    """
1400
 
 
1401
 
    def _get_matching_bzrdir(self):
1402
 
        return bzrdir.format_registry.make_bzrdir('development-subtree')
1403
 
 
1404
 
    def _ignore_setting_bzrdir(self, format):
1405
 
        pass
1406
 
 
1407
 
    _matchingbzrdir = property(_get_matching_bzrdir, _ignore_setting_bzrdir)
1408
 
 
1409
 
    def get_format_string(self):
1410
 
        return ('Bazaar development format 8\n')
1411
 
 
1412
 
    def get_format_description(self):
1413
 
        """See RepositoryFormat.get_format_description()."""
1414
 
        return ("Development repository format 8 - nested trees, "
1415
 
                "group compression and chk inventories")
1416
 
 
1417
 
    experimental = True
1418
 
    supports_tree_reference = True
 
996
    def check_conversion_target(self, target_format):
 
997
        if not target_format.rich_root_data:
 
998
            raise errors.BadConversionTarget(
 
999
                'Does not support rich root data.', target_format)
 
1000
        if not getattr(target_format, 'supports_tree_reference', False):
 
1001
            raise errors.BadConversionTarget(
 
1002
                'Does not support nested trees', target_format)
 
1003
 
 
1004