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  • Committer: Robert Collins
  • Date: 2009-03-23 00:25:27 UTC
  • mto: This revision was merged to the branch mainline in revision 4182.
  • Revision ID: robertc@robertcollins.net-20090323002527-95y8gqjyzjuzazxl
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bzrlib/workingtree.py
1
 
# Copyright (C) 2005-2010 Canonical Ltd
 
1
# Copyright (C) 2005, 2006, 2007, 2008 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
17
17
"""WorkingTree object and friends.
18
18
 
29
29
WorkingTree.open(dir).
30
30
"""
31
31
 
 
32
# TODO: Give the workingtree sole responsibility for the working inventory;
 
33
# remove the variable and references to it from the branch.  This may require
 
34
# updating the commit code so as to update the inventory within the working
 
35
# copy, and making sure there's only one WorkingTree for any directory on disk.
 
36
# At the moment they may alias the inventory and have old copies of it in
 
37
# memory.  (Now done? -- mbp 20060309)
32
38
 
33
39
from cStringIO import StringIO
34
40
import os
42
48
import itertools
43
49
import operator
44
50
import stat
 
51
from time import time
 
52
import warnings
45
53
import re
46
54
 
47
55
import bzrlib
49
57
    branch,
50
58
    bzrdir,
51
59
    conflicts as _mod_conflicts,
 
60
    dirstate,
52
61
    errors,
53
62
    generate_ids,
54
63
    globbing,
55
 
    graph as _mod_graph,
56
64
    hashcache,
57
65
    ignores,
58
 
    inventory,
59
66
    merge,
60
67
    revision as _mod_revision,
61
68
    revisiontree,
 
69
    repository,
 
70
    textui,
62
71
    trace,
63
72
    transform,
64
73
    ui,
 
74
    urlutils,
65
75
    views,
66
76
    xml5,
 
77
    xml6,
67
78
    xml7,
68
79
    )
69
80
import bzrlib.branch
70
81
from bzrlib.transport import get_transport
71
 
from bzrlib.workingtree_4 import (
72
 
    WorkingTreeFormat4,
73
 
    WorkingTreeFormat5,
74
 
    WorkingTreeFormat6,
75
 
    )
 
82
import bzrlib.ui
 
83
from bzrlib.workingtree_4 import WorkingTreeFormat4, WorkingTreeFormat5
76
84
""")
77
85
 
78
86
from bzrlib import symbol_versioning
79
87
from bzrlib.decorators import needs_read_lock, needs_write_lock
80
 
from bzrlib.lock import LogicalLockResult
 
88
from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, TreeReference
81
89
from bzrlib.lockable_files import LockableFiles
82
90
from bzrlib.lockdir import LockDir
83
91
import bzrlib.mutabletree
84
92
from bzrlib.mutabletree import needs_tree_write_lock
85
93
from bzrlib import osutils
86
94
from bzrlib.osutils import (
 
95
    compact_date,
87
96
    file_kind,
88
97
    isdir,
89
98
    normpath,
90
99
    pathjoin,
 
100
    rand_chars,
91
101
    realpath,
92
102
    safe_unicode,
93
103
    splitpath,
94
104
    supports_executable,
95
105
    )
96
 
from bzrlib.filters import filtered_input_file
97
106
from bzrlib.trace import mutter, note
98
107
from bzrlib.transport.local import LocalTransport
99
 
from bzrlib.revision import CURRENT_REVISION
 
108
from bzrlib.progress import DummyProgress, ProgressPhase
 
109
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
100
110
from bzrlib.rio import RioReader, rio_file, Stanza
101
 
from bzrlib.symbol_versioning import (
102
 
    deprecated_passed,
103
 
    DEPRECATED_PARAMETER,
104
 
    )
 
111
from bzrlib.symbol_versioning import (deprecated_passed,
 
112
        deprecated_method,
 
113
        deprecated_function,
 
114
        DEPRECATED_PARAMETER,
 
115
        )
105
116
 
106
117
 
107
118
MERGE_MODIFIED_HEADER_1 = "BZR merge-modified list format 1"
108
 
# TODO: Modifying the conflict objects or their type is currently nearly
109
 
# impossible as there is no clear relationship between the working tree format
110
 
# and the conflict list file format.
111
119
CONFLICT_HEADER_1 = "BZR conflict list format 1"
112
120
 
113
121
ERROR_PATH_NOT_FOUND = 3    # WindowsError errno code, equivalent to ENOENT
168
176
        return ''
169
177
 
170
178
 
171
 
class WorkingTree(bzrlib.mutabletree.MutableTree,
172
 
    bzrdir.ControlComponent):
 
179
class WorkingTree(bzrlib.mutabletree.MutableTree):
173
180
    """Working copy tree.
174
181
 
175
182
    The inventory is held in the `Branch` working-inventory, and the
223
230
        wt_trans = self.bzrdir.get_workingtree_transport(None)
224
231
        cache_filename = wt_trans.local_abspath('stat-cache')
225
232
        self._hashcache = hashcache.HashCache(basedir, cache_filename,
226
 
            self.bzrdir._get_file_mode(),
227
 
            self._content_filter_stack_provider())
 
233
            self.bzrdir._get_file_mode())
228
234
        hc = self._hashcache
229
235
        hc.read()
230
236
        # is this scan needed ? it makes things kinda slow.
248
254
        self._rules_searcher = None
249
255
        self.views = self._make_views()
250
256
 
251
 
    @property
252
 
    def user_transport(self):
253
 
        return self.bzrdir.user_transport
254
 
 
255
 
    @property
256
 
    def control_transport(self):
257
 
        return self._transport
258
 
 
259
257
    def _detect_case_handling(self):
260
258
        wt_trans = self.bzrdir.get_workingtree_transport(None)
261
259
        try:
286
284
        self._control_files.break_lock()
287
285
        self.branch.break_lock()
288
286
 
289
 
    def _get_check_refs(self):
290
 
        """Return the references needed to perform a check of this tree.
291
 
        
292
 
        The default implementation returns no refs, and is only suitable for
293
 
        trees that have no local caching and can commit on ghosts at any time.
294
 
 
295
 
        :seealso: bzrlib.check for details about check_refs.
296
 
        """
297
 
        return []
298
 
 
299
287
    def requires_rich_root(self):
300
288
        return self._format.requires_rich_root
301
289
 
425
413
            return self.branch.repository.revision_tree(revision_id)
426
414
        except (errors.RevisionNotPresent, errors.NoSuchRevision):
427
415
            # the basis tree *may* be a ghost or a low level error may have
428
 
            # occurred. If the revision is present, its a problem, if its not
 
416
            # occured. If the revision is present, its a problem, if its not
429
417
            # its a ghost.
430
418
            if self.branch.repository.has_revision(revision_id):
431
419
                raise
447
435
    def has_filename(self, filename):
448
436
        return osutils.lexists(self.abspath(filename))
449
437
 
450
 
    def get_file(self, file_id, path=None, filtered=True):
451
 
        return self.get_file_with_stat(file_id, path, filtered=filtered)[0]
 
438
    def get_file(self, file_id, path=None):
 
439
        return self.get_file_with_stat(file_id, path)[0]
452
440
 
453
 
    def get_file_with_stat(self, file_id, path=None, filtered=True,
454
 
        _fstat=os.fstat):
455
 
        """See Tree.get_file_with_stat."""
 
441
    def get_file_with_stat(self, file_id, path=None, _fstat=os.fstat):
 
442
        """See MutableTree.get_file_with_stat."""
456
443
        if path is None:
457
444
            path = self.id2path(file_id)
458
 
        file_obj = self.get_file_byname(path, filtered=False)
459
 
        stat_value = _fstat(file_obj.fileno())
460
 
        if filtered and self.supports_content_filtering():
461
 
            filters = self._content_filter_stack(path)
462
 
            file_obj = filtered_input_file(file_obj, filters)
463
 
        return (file_obj, stat_value)
464
 
 
465
 
    def get_file_text(self, file_id, path=None, filtered=True):
466
 
        my_file = self.get_file(file_id, path=path, filtered=filtered)
467
 
        try:
468
 
            return my_file.read()
469
 
        finally:
470
 
            my_file.close()
471
 
 
472
 
    def get_file_byname(self, filename, filtered=True):
473
 
        path = self.abspath(filename)
474
 
        f = file(path, 'rb')
475
 
        if filtered and self.supports_content_filtering():
476
 
            filters = self._content_filter_stack(filename)
477
 
            return filtered_input_file(f, filters)
478
 
        else:
479
 
            return f
480
 
 
481
 
    def get_file_lines(self, file_id, path=None, filtered=True):
 
445
        file_obj = self.get_file_byname(path)
 
446
        return (file_obj, _fstat(file_obj.fileno()))
 
447
 
 
448
    def get_file_byname(self, filename):
 
449
        return file(self.abspath(filename), 'rb')
 
450
 
 
451
    def get_file_lines(self, file_id, path=None):
482
452
        """See Tree.get_file_lines()"""
483
 
        file = self.get_file(file_id, path, filtered=filtered)
 
453
        file = self.get_file(file_id, path)
484
454
        try:
485
455
            return file.readlines()
486
456
        finally:
497
467
        incorrectly attributed to CURRENT_REVISION (but after committing, the
498
468
        attribution will be correct).
499
469
        """
500
 
        maybe_file_parent_keys = []
501
 
        for parent_id in self.get_parent_ids():
502
 
            try:
503
 
                parent_tree = self.revision_tree(parent_id)
504
 
            except errors.NoSuchRevisionInTree:
505
 
                parent_tree = self.branch.repository.revision_tree(parent_id)
506
 
            parent_tree.lock_read()
507
 
            try:
508
 
                if file_id not in parent_tree:
509
 
                    continue
510
 
                ie = parent_tree.inventory[file_id]
511
 
                if ie.kind != 'file':
512
 
                    # Note: this is slightly unnecessary, because symlinks and
513
 
                    # directories have a "text" which is the empty text, and we
514
 
                    # know that won't mess up annotations. But it seems cleaner
515
 
                    continue
516
 
                parent_text_key = (file_id, ie.revision)
517
 
                if parent_text_key not in maybe_file_parent_keys:
518
 
                    maybe_file_parent_keys.append(parent_text_key)
519
 
            finally:
520
 
                parent_tree.unlock()
521
 
        graph = _mod_graph.Graph(self.branch.repository.texts)
522
 
        heads = graph.heads(maybe_file_parent_keys)
523
 
        file_parent_keys = []
524
 
        for key in maybe_file_parent_keys:
525
 
            if key in heads:
526
 
                file_parent_keys.append(key)
527
 
 
528
 
        # Now we have the parents of this content
529
 
        annotator = self.branch.repository.texts.get_annotator()
530
 
        text = self.get_file_text(file_id)
531
 
        this_key =(file_id, default_revision)
532
 
        annotator.add_special_text(this_key, file_parent_keys, text)
533
 
        annotations = [(key[-1], line)
534
 
                       for key, line in annotator.annotate_flat(this_key)]
535
 
        return annotations
 
470
        basis = self.basis_tree()
 
471
        basis.lock_read()
 
472
        try:
 
473
            changes = self.iter_changes(basis, True, [self.id2path(file_id)],
 
474
                require_versioned=True).next()
 
475
            changed_content, kind = changes[2], changes[6]
 
476
            if not changed_content:
 
477
                return basis.annotate_iter(file_id)
 
478
            if kind[1] is None:
 
479
                return None
 
480
            import annotate
 
481
            if kind[0] != 'file':
 
482
                old_lines = []
 
483
            else:
 
484
                old_lines = list(basis.annotate_iter(file_id))
 
485
            old = [old_lines]
 
486
            for tree in self.branch.repository.revision_trees(
 
487
                self.get_parent_ids()[1:]):
 
488
                if file_id not in tree:
 
489
                    continue
 
490
                old.append(list(tree.annotate_iter(file_id)))
 
491
            return annotate.reannotate(old, self.get_file(file_id).readlines(),
 
492
                                       default_revision)
 
493
        finally:
 
494
            basis.unlock()
536
495
 
537
496
    def _get_ancestors(self, default_revision):
538
497
        ancestors = set([default_revision])
553
512
        else:
554
513
            parents = [last_rev]
555
514
        try:
556
 
            merges_bytes = self._transport.get_bytes('pending-merges')
 
515
            merges_file = self._transport.get('pending-merges')
557
516
        except errors.NoSuchFile:
558
517
            pass
559
518
        else:
560
 
            for l in osutils.split_lines(merges_bytes):
 
519
            for l in merges_file.readlines():
561
520
                revision_id = l.rstrip('\n')
562
521
                parents.append(revision_id)
563
522
        return parents
582
541
 
583
542
        revision
584
543
            If not None, the cloned tree will have its last revision set to
585
 
            revision, and difference between the source trees last revision
 
544
            revision, and and difference between the source trees last revision
586
545
            and this one merged in.
587
546
        """
588
547
        # assumes the target bzr dir format is compatible.
622
581
 
623
582
    def get_file_size(self, file_id):
624
583
        """See Tree.get_file_size"""
625
 
        # XXX: this returns the on-disk size; it should probably return the
626
 
        # canonical size
627
584
        try:
628
585
            return os.path.getsize(self.id2abspath(file_id))
629
586
        except OSError, e:
645
602
 
646
603
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
647
604
        file_id = self.path2id(path)
648
 
        if file_id is None:
649
 
            # For unversioned files on win32, we just assume they are not
650
 
            # executable
651
 
            return False
652
605
        return self._inventory[file_id].executable
653
606
 
654
607
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
764
717
            raise
765
718
        kind = _mapper(stat_result.st_mode)
766
719
        if kind == 'file':
767
 
            return self._file_content_summary(path, stat_result)
 
720
            size = stat_result.st_size
 
721
            # try for a stat cache lookup
 
722
            executable = self._is_executable_from_path_and_stat(path, stat_result)
 
723
            return (kind, size, executable, self._sha_from_stat(
 
724
                path, stat_result))
768
725
        elif kind == 'directory':
769
726
            # perhaps it looks like a plain directory, but it's really a
770
727
            # reference.
772
729
                kind = 'tree-reference'
773
730
            return kind, None, None, None
774
731
        elif kind == 'symlink':
775
 
            target = osutils.readlink(abspath)
776
 
            return ('symlink', None, None, target)
 
732
            return ('symlink', None, None,
 
733
                    os.readlink(abspath.encode(osutils._fs_enc)
 
734
                                ).decode(osutils._fs_enc))
777
735
        else:
778
736
            return (kind, None, None, None)
779
737
 
780
 
    def _file_content_summary(self, path, stat_result):
781
 
        size = stat_result.st_size
782
 
        executable = self._is_executable_from_path_and_stat(path, stat_result)
783
 
        # try for a stat cache lookup
784
 
        return ('file', size, executable, self._sha_from_stat(
785
 
            path, stat_result))
786
 
 
787
738
    def _check_parents_for_ghosts(self, revision_ids, allow_leftmost_as_ghost):
788
739
        """Common ghost checking functionality from set_parent_*.
789
740
 
799
750
    def _set_merges_from_parent_ids(self, parent_ids):
800
751
        merges = parent_ids[1:]
801
752
        self._transport.put_bytes('pending-merges', '\n'.join(merges),
802
 
            mode=self.bzrdir._get_file_mode())
 
753
            mode=self._control_files._file_mode)
803
754
 
804
755
    def _filter_parent_ids_by_ancestry(self, revision_ids):
805
756
        """Check that all merged revisions are proper 'heads'.
905
856
        self._must_be_locked()
906
857
        my_file = rio_file(stanzas, header)
907
858
        self._transport.put_file(filename, my_file,
908
 
            mode=self.bzrdir._get_file_mode())
 
859
            mode=self._control_files._file_mode)
909
860
 
910
861
    @needs_write_lock # because merge pulls data into the branch.
911
862
    def merge_from_branch(self, branch, to_revision=None, from_revision=None,
912
 
                          merge_type=None, force=False):
 
863
        merge_type=None):
913
864
        """Merge from a branch into this working tree.
914
865
 
915
866
        :param branch: The branch to merge from.
919
870
            branch.last_revision().
920
871
        """
921
872
        from bzrlib.merge import Merger, Merge3Merger
922
 
        merger = Merger(self.branch, this_tree=self)
923
 
        # check that there are no local alterations
924
 
        if not force and self.has_changes():
925
 
            raise errors.UncommittedChanges(self)
926
 
        if to_revision is None:
927
 
            to_revision = _mod_revision.ensure_null(branch.last_revision())
928
 
        merger.other_rev_id = to_revision
929
 
        if _mod_revision.is_null(merger.other_rev_id):
930
 
            raise errors.NoCommits(branch)
931
 
        self.branch.fetch(branch, last_revision=merger.other_rev_id)
932
 
        merger.other_basis = merger.other_rev_id
933
 
        merger.other_tree = self.branch.repository.revision_tree(
934
 
            merger.other_rev_id)
935
 
        merger.other_branch = branch
936
 
        if from_revision is None:
937
 
            merger.find_base()
938
 
        else:
939
 
            merger.set_base_revision(from_revision, branch)
940
 
        if merger.base_rev_id == merger.other_rev_id:
941
 
            raise errors.PointlessMerge
942
 
        merger.backup_files = False
943
 
        if merge_type is None:
944
 
            merger.merge_type = Merge3Merger
945
 
        else:
946
 
            merger.merge_type = merge_type
947
 
        merger.set_interesting_files(None)
948
 
        merger.show_base = False
949
 
        merger.reprocess = False
950
 
        conflicts = merger.do_merge()
951
 
        merger.set_pending()
 
873
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
874
        try:
 
875
            merger = Merger(self.branch, this_tree=self, pb=pb)
 
876
            merger.pp = ProgressPhase("Merge phase", 5, pb)
 
877
            merger.pp.next_phase()
 
878
            # check that there are no
 
879
            # local alterations
 
880
            merger.check_basis(check_clean=True, require_commits=False)
 
881
            if to_revision is None:
 
882
                to_revision = _mod_revision.ensure_null(branch.last_revision())
 
883
            merger.other_rev_id = to_revision
 
884
            if _mod_revision.is_null(merger.other_rev_id):
 
885
                raise errors.NoCommits(branch)
 
886
            self.branch.fetch(branch, last_revision=merger.other_rev_id)
 
887
            merger.other_basis = merger.other_rev_id
 
888
            merger.other_tree = self.branch.repository.revision_tree(
 
889
                merger.other_rev_id)
 
890
            merger.other_branch = branch
 
891
            merger.pp.next_phase()
 
892
            if from_revision is None:
 
893
                merger.find_base()
 
894
            else:
 
895
                merger.set_base_revision(from_revision, branch)
 
896
            if merger.base_rev_id == merger.other_rev_id:
 
897
                raise errors.PointlessMerge
 
898
            merger.backup_files = False
 
899
            if merge_type is None:
 
900
                merger.merge_type = Merge3Merger
 
901
            else:
 
902
                merger.merge_type = merge_type
 
903
            merger.set_interesting_files(None)
 
904
            merger.show_base = False
 
905
            merger.reprocess = False
 
906
            conflicts = merger.do_merge()
 
907
            merger.set_pending()
 
908
        finally:
 
909
            pb.finished()
952
910
        return conflicts
953
911
 
954
912
    @needs_read_lock
995
953
        return file_id
996
954
 
997
955
    def get_symlink_target(self, file_id):
998
 
        abspath = self.id2abspath(file_id)
999
 
        target = osutils.readlink(abspath)
1000
 
        return target
 
956
        return os.readlink(self.id2abspath(file_id).encode(osutils._fs_enc))
1001
957
 
1002
958
    @needs_write_lock
1003
959
    def subsume(self, other_tree):
1101
1057
        tree_transport = self.bzrdir.root_transport.clone(sub_path)
1102
1058
        if tree_transport.base != branch_transport.base:
1103
1059
            tree_bzrdir = format.initialize_on_transport(tree_transport)
1104
 
            branch.BranchReferenceFormat().initialize(tree_bzrdir,
1105
 
                target_branch=new_branch)
 
1060
            branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
1106
1061
        else:
1107
1062
            tree_bzrdir = branch_bzrdir
1108
 
        wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
 
1063
        wt = tree_bzrdir.create_workingtree(NULL_REVISION)
1109
1064
        wt.set_parent_ids(self.get_parent_ids())
1110
1065
        my_inv = self.inventory
1111
 
        child_inv = inventory.Inventory(root_id=None)
 
1066
        child_inv = Inventory(root_id=None)
1112
1067
        new_root = my_inv[file_id]
1113
1068
        my_inv.remove_recursive_id(file_id)
1114
1069
        new_root.parent_id = None
1133
1088
        self._serialize(self._inventory, sio)
1134
1089
        sio.seek(0)
1135
1090
        self._transport.put_file('inventory', sio,
1136
 
            mode=self.bzrdir._get_file_mode())
 
1091
            mode=self._control_files._file_mode)
1137
1092
        self._inventory_is_modified = False
1138
1093
 
1139
1094
    def _kind(self, relpath):
1140
1095
        return osutils.file_kind(self.abspath(relpath))
1141
1096
 
1142
 
    def list_files(self, include_root=False, from_dir=None, recursive=True):
1143
 
        """List all files as (path, class, kind, id, entry).
 
1097
    def list_files(self, include_root=False):
 
1098
        """Recursively list all files as (path, class, kind, id, entry).
1144
1099
 
1145
1100
        Lists, but does not descend into unversioned directories.
 
1101
 
1146
1102
        This does not include files that have been deleted in this
1147
 
        tree. Skips the control directory.
 
1103
        tree.
1148
1104
 
1149
 
        :param include_root: if True, return an entry for the root
1150
 
        :param from_dir: start from this directory or None for the root
1151
 
        :param recursive: whether to recurse into subdirectories or not
 
1105
        Skips the control directory.
1152
1106
        """
1153
1107
        # list_files is an iterator, so @needs_read_lock doesn't work properly
1154
1108
        # with it. So callers should be careful to always read_lock the tree.
1156
1110
            raise errors.ObjectNotLocked(self)
1157
1111
 
1158
1112
        inv = self.inventory
1159
 
        if from_dir is None and include_root is True:
 
1113
        if include_root is True:
1160
1114
            yield ('', 'V', 'directory', inv.root.file_id, inv.root)
1161
1115
        # Convert these into local objects to save lookup times
1162
1116
        pathjoin = osutils.pathjoin
1169
1123
        fk_entries = {'directory':TreeDirectory, 'file':TreeFile, 'symlink':TreeLink}
1170
1124
 
1171
1125
        # directory file_id, relative path, absolute path, reverse sorted children
1172
 
        if from_dir is not None:
1173
 
            from_dir_id = inv.path2id(from_dir)
1174
 
            if from_dir_id is None:
1175
 
                # Directory not versioned
1176
 
                return
1177
 
            from_dir_abspath = pathjoin(self.basedir, from_dir)
1178
 
        else:
1179
 
            from_dir_id = inv.root.file_id
1180
 
            from_dir_abspath = self.basedir
1181
 
        children = os.listdir(from_dir_abspath)
 
1126
        children = os.listdir(self.basedir)
1182
1127
        children.sort()
1183
1128
        # jam 20060527 The kernel sized tree seems equivalent whether we
1184
1129
        # use a deque and popleft to keep them sorted, or if we use a plain
1185
1130
        # list and just reverse() them.
1186
1131
        children = collections.deque(children)
1187
 
        stack = [(from_dir_id, u'', from_dir_abspath, children)]
 
1132
        stack = [(inv.root.file_id, u'', self.basedir, children)]
1188
1133
        while stack:
1189
1134
            from_dir_id, from_dir_relpath, from_dir_abspath, children = stack[-1]
1190
1135
 
1248
1193
                if fk != 'directory':
1249
1194
                    continue
1250
1195
 
1251
 
                # But do this child first if recursing down
1252
 
                if recursive:
1253
 
                    new_children = os.listdir(fap)
1254
 
                    new_children.sort()
1255
 
                    new_children = collections.deque(new_children)
1256
 
                    stack.append((f_ie.file_id, fp, fap, new_children))
1257
 
                    # Break out of inner loop,
1258
 
                    # so that we start outer loop with child
1259
 
                    break
 
1196
                # But do this child first
 
1197
                new_children = os.listdir(fap)
 
1198
                new_children.sort()
 
1199
                new_children = collections.deque(new_children)
 
1200
                stack.append((f_ie.file_id, fp, fap, new_children))
 
1201
                # Break out of inner loop,
 
1202
                # so that we start outer loop with child
 
1203
                break
1260
1204
            else:
1261
1205
                # if we finished all children, pop it off the stack
1262
1206
                stack.pop()
1440
1384
        inv = self.inventory
1441
1385
        for entry in moved:
1442
1386
            try:
1443
 
                self._move_entry(WorkingTree._RenameEntry(
1444
 
                    entry.to_rel, entry.from_id,
 
1387
                self._move_entry(_RenameEntry(entry.to_rel, entry.from_id,
1445
1388
                    entry.to_tail, entry.to_parent_id, entry.from_rel,
1446
1389
                    entry.from_tail, entry.from_parent_id,
1447
1390
                    entry.only_change_inv))
1498
1441
        from_tail = splitpath(from_rel)[-1]
1499
1442
        from_id = inv.path2id(from_rel)
1500
1443
        if from_id is None:
1501
 
            # if file is missing in the inventory maybe it's in the basis_tree
1502
 
            basis_tree = self.branch.basis_tree()
1503
 
            from_id = basis_tree.path2id(from_rel)
1504
 
            if from_id is None:
1505
 
                raise errors.BzrRenameFailedError(from_rel,to_rel,
1506
 
                    errors.NotVersionedError(path=str(from_rel)))
1507
 
            # put entry back in the inventory so we can rename it
1508
 
            from_entry = basis_tree.inventory[from_id].copy()
1509
 
            inv.add(from_entry)
1510
 
        else:
1511
 
            from_entry = inv[from_id]
 
1444
            raise errors.BzrRenameFailedError(from_rel,to_rel,
 
1445
                errors.NotVersionedError(path=str(from_rel)))
 
1446
        from_entry = inv[from_id]
1512
1447
        from_parent_id = from_entry.parent_id
1513
1448
        to_dir, to_tail = os.path.split(to_rel)
1514
1449
        to_dir_id = inv.path2id(to_dir)
1576
1511
        :raises: NoSuchId if any fileid is not currently versioned.
1577
1512
        """
1578
1513
        for file_id in file_ids:
1579
 
            if file_id not in self._inventory:
1580
 
                raise errors.NoSuchId(self, file_id)
1581
 
        for file_id in file_ids:
1582
1514
            if self._inventory.has_id(file_id):
1583
1515
                self._inventory.remove_recursive_id(file_id)
 
1516
            else:
 
1517
                raise errors.NoSuchId(self, file_id)
1584
1518
        if len(file_ids):
1585
1519
            # in the future this should just set a dirty bit to wait for the
1586
1520
            # final unlock. However, until all methods of workingtree start
1605
1539
 
1606
1540
    @needs_write_lock
1607
1541
    def pull(self, source, overwrite=False, stop_revision=None,
1608
 
             change_reporter=None, possible_transports=None, local=False):
 
1542
             change_reporter=None, possible_transports=None):
 
1543
        top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1609
1544
        source.lock_read()
1610
1545
        try:
 
1546
            pp = ProgressPhase("Pull phase", 2, top_pb)
 
1547
            pp.next_phase()
1611
1548
            old_revision_info = self.branch.last_revision_info()
1612
1549
            basis_tree = self.basis_tree()
1613
1550
            count = self.branch.pull(source, overwrite, stop_revision,
1614
 
                                     possible_transports=possible_transports,
1615
 
                                     local=local)
 
1551
                                     possible_transports=possible_transports)
1616
1552
            new_revision_info = self.branch.last_revision_info()
1617
1553
            if new_revision_info != old_revision_info:
 
1554
                pp.next_phase()
1618
1555
                repository = self.branch.repository
 
1556
                pb = bzrlib.ui.ui_factory.nested_progress_bar()
1619
1557
                basis_tree.lock_read()
1620
1558
                try:
1621
1559
                    new_basis_tree = self.branch.basis_tree()
1624
1562
                                new_basis_tree,
1625
1563
                                basis_tree,
1626
1564
                                this_tree=self,
1627
 
                                pb=None,
 
1565
                                pb=pb,
1628
1566
                                change_reporter=change_reporter)
1629
 
                    basis_root_id = basis_tree.get_root_id()
1630
 
                    new_root_id = new_basis_tree.get_root_id()
1631
 
                    if basis_root_id != new_root_id:
1632
 
                        self.set_root_id(new_root_id)
 
1567
                    if (basis_tree.inventory.root is None and
 
1568
                        new_basis_tree.inventory.root is not None):
 
1569
                        self.set_root_id(new_basis_tree.get_root_id())
1633
1570
                finally:
 
1571
                    pb.finished()
1634
1572
                    basis_tree.unlock()
1635
1573
                # TODO - dedup parents list with things merged by pull ?
1636
1574
                # reuse the revisiontree we merged against to set the new
1649
1587
            return count
1650
1588
        finally:
1651
1589
            source.unlock()
 
1590
            top_pb.finished()
1652
1591
 
1653
1592
    @needs_write_lock
1654
1593
    def put_file_bytes_non_atomic(self, file_id, bytes):
1680
1619
 
1681
1620
            fl = []
1682
1621
            for subf in os.listdir(dirabs):
1683
 
                if self.bzrdir.is_control_filename(subf):
 
1622
                if subf == '.bzr':
1684
1623
                    continue
1685
1624
                if subf not in dir_entry.children:
1686
1625
                    try:
1739
1678
        r"""Check whether the filename matches an ignore pattern.
1740
1679
 
1741
1680
        Patterns containing '/' or '\' need to match the whole path;
1742
 
        others match against only the last component.  Patterns starting
1743
 
        with '!' are ignore exceptions.  Exceptions take precedence
1744
 
        over regular patterns and cause the filename to not be ignored.
 
1681
        others match against only the last component.
1745
1682
 
1746
1683
        If the file is ignored, returns the pattern which caused it to
1747
1684
        be ignored, otherwise None.  So this can simply be used as a
1748
1685
        boolean if desired."""
1749
1686
        if getattr(self, '_ignoreglobster', None) is None:
1750
 
            self._ignoreglobster = globbing.ExceptionGlobster(self.get_ignore_list())
 
1687
            self._ignoreglobster = globbing.Globster(self.get_ignore_list())
1751
1688
        return self._ignoreglobster.match(filename)
1752
1689
 
1753
1690
    def kind(self, file_id):
1803
1740
            raise errors.ObjectNotLocked(self)
1804
1741
 
1805
1742
    def lock_read(self):
1806
 
        """Lock the tree for reading.
1807
 
 
1808
 
        This also locks the branch, and can be unlocked via self.unlock().
1809
 
 
1810
 
        :return: A bzrlib.lock.LogicalLockResult.
1811
 
        """
 
1743
        """See Branch.lock_read, and WorkingTree.unlock."""
1812
1744
        if not self.is_locked():
1813
1745
            self._reset_data()
1814
1746
        self.branch.lock_read()
1815
1747
        try:
1816
 
            self._control_files.lock_read()
1817
 
            return LogicalLockResult(self.unlock)
 
1748
            return self._control_files.lock_read()
1818
1749
        except:
1819
1750
            self.branch.unlock()
1820
1751
            raise
1821
1752
 
1822
1753
    def lock_tree_write(self):
1823
 
        """See MutableTree.lock_tree_write, and WorkingTree.unlock.
1824
 
 
1825
 
        :return: A bzrlib.lock.LogicalLockResult.
1826
 
        """
 
1754
        """See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1827
1755
        if not self.is_locked():
1828
1756
            self._reset_data()
1829
1757
        self.branch.lock_read()
1830
1758
        try:
1831
 
            self._control_files.lock_write()
1832
 
            return LogicalLockResult(self.unlock)
 
1759
            return self._control_files.lock_write()
1833
1760
        except:
1834
1761
            self.branch.unlock()
1835
1762
            raise
1836
1763
 
1837
1764
    def lock_write(self):
1838
 
        """See MutableTree.lock_write, and WorkingTree.unlock.
1839
 
 
1840
 
        :return: A bzrlib.lock.LogicalLockResult.
1841
 
        """
 
1765
        """See MutableTree.lock_write, and WorkingTree.unlock."""
1842
1766
        if not self.is_locked():
1843
1767
            self._reset_data()
1844
1768
        self.branch.lock_write()
1845
1769
        try:
1846
 
            self._control_files.lock_write()
1847
 
            return LogicalLockResult(self.unlock)
 
1770
            return self._control_files.lock_write()
1848
1771
        except:
1849
1772
            self.branch.unlock()
1850
1773
            raise
1858
1781
    def _reset_data(self):
1859
1782
        """Reset transient data that cannot be revalidated."""
1860
1783
        self._inventory_is_modified = False
1861
 
        f = self._transport.get('inventory')
1862
 
        try:
1863
 
            result = self._deserialize(f)
1864
 
        finally:
1865
 
            f.close()
 
1784
        result = self._deserialize(self._transport.get('inventory'))
1866
1785
        self._set_inventory(result, dirty=False)
1867
1786
 
1868
1787
    @needs_tree_write_lock
1892
1811
        path = self._basis_inventory_name()
1893
1812
        sio = StringIO(xml)
1894
1813
        self._transport.put_file(path, sio,
1895
 
            mode=self.bzrdir._get_file_mode())
 
1814
            mode=self._control_files._file_mode)
1896
1815
 
1897
1816
    def _create_basis_xml_from_inventory(self, revision_id, inventory):
1898
1817
        """Create the text that will be saved in basis-inventory"""
1915
1834
            # revision_id is set. We must check for this full string, because a
1916
1835
            # root node id can legitimately look like 'revision_id' but cannot
1917
1836
            # contain a '"'.
1918
 
            xml = self.branch.repository._get_inventory_xml(new_revision)
 
1837
            xml = self.branch.repository.get_inventory_xml(new_revision)
1919
1838
            firstline = xml.split('\n', 1)[0]
1920
1839
            if (not 'revision_id="' in firstline or
1921
1840
                'format="7"' not in firstline):
1922
 
                inv = self.branch.repository._serializer.read_inventory_from_string(
1923
 
                    xml, new_revision)
 
1841
                inv = self.branch.repository.deserialise_inventory(
 
1842
                    new_revision, xml)
1924
1843
                xml = self._create_basis_xml_from_inventory(new_revision, inv)
1925
1844
            self._write_basis_inventory(xml)
1926
1845
        except (errors.NoSuchRevision, errors.RevisionNotPresent):
1944
1863
        # binary.
1945
1864
        if self._inventory_is_modified:
1946
1865
            raise errors.InventoryModified(self)
1947
 
        f = self._transport.get('inventory')
1948
 
        try:
1949
 
            result = self._deserialize(f)
1950
 
        finally:
1951
 
            f.close()
 
1866
        result = self._deserialize(self._transport.get('inventory'))
1952
1867
        self._set_inventory(result, dirty=False)
1953
1868
        return result
1954
1869
 
1969
1884
 
1970
1885
        new_files=set()
1971
1886
        unknown_nested_files=set()
1972
 
        if to_file is None:
1973
 
            to_file = sys.stdout
1974
1887
 
1975
1888
        def recurse_directory_to_add_files(directory):
1976
1889
            # Recurse directory and add all files
1977
1890
            # so we can check if they have changed.
1978
 
            for parent_info, file_infos in self.walkdirs(directory):
 
1891
            for parent_info, file_infos in\
 
1892
                self.walkdirs(directory):
1979
1893
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
1980
1894
                    # Is it versioned or ignored?
1981
1895
                    if self.path2id(relpath) or self.is_ignored(relpath):
2016
1930
                            # ... but not ignored
2017
1931
                            has_changed_files = True
2018
1932
                            break
2019
 
                    elif (content_change and (kind[1] is not None) and
2020
 
                            osutils.is_inside_any(files, path[1])):
2021
 
                        # Versioned and changed, but not deleted, and still
2022
 
                        # in one of the dirs to be deleted.
 
1933
                    elif content_change and (kind[1] is not None):
 
1934
                        # Versioned and changed, but not deleted
2023
1935
                        has_changed_files = True
2024
1936
                        break
2025
1937
 
2033
1945
                        tree_delta.unversioned.extend((unknown_file,))
2034
1946
                raise errors.BzrRemoveChangedFilesError(tree_delta)
2035
1947
 
2036
 
        # Build inv_delta and delete files where applicable,
 
1948
        # Build inv_delta and delete files where applicaple,
2037
1949
        # do this before any modifications to inventory.
2038
1950
        for f in files:
2039
1951
            fid = self.path2id(f)
2047
1959
                        new_status = 'I'
2048
1960
                    else:
2049
1961
                        new_status = '?'
2050
 
                    # XXX: Really should be a more abstract reporter interface
2051
 
                    kind_ch = osutils.kind_marker(self.kind(fid))
2052
 
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
 
1962
                    textui.show_status(new_status, self.kind(fid), f,
 
1963
                                       to_file=to_file)
2053
1964
                # Unversion file
2054
1965
                inv_delta.append((f, None, fid, None))
2055
1966
                message = "removed %s" % (f,)
2078
1989
 
2079
1990
    @needs_tree_write_lock
2080
1991
    def revert(self, filenames=None, old_tree=None, backups=True,
2081
 
               pb=None, report_changes=False):
 
1992
               pb=DummyProgress(), report_changes=False):
2082
1993
        from bzrlib.conflicts import resolve
2083
1994
        if filenames == []:
2084
1995
            filenames = None
2097
2008
            if filenames is None and len(self.get_parent_ids()) > 1:
2098
2009
                parent_trees = []
2099
2010
                last_revision = self.last_revision()
2100
 
                if last_revision != _mod_revision.NULL_REVISION:
 
2011
                if last_revision != NULL_REVISION:
2101
2012
                    if basis_tree is None:
2102
2013
                        basis_tree = self.basis_tree()
2103
2014
                        basis_tree.lock_read()
2141
2052
    def set_inventory(self, new_inventory_list):
2142
2053
        from bzrlib.inventory import (Inventory,
2143
2054
                                      InventoryDirectory,
 
2055
                                      InventoryEntry,
2144
2056
                                      InventoryFile,
2145
2057
                                      InventoryLink)
2146
2058
        inv = Inventory(self.get_root_id())
2206
2118
        """
2207
2119
        raise NotImplementedError(self.unlock)
2208
2120
 
2209
 
    _marker = object()
2210
 
 
2211
 
    def update(self, change_reporter=None, possible_transports=None,
2212
 
               revision=None, old_tip=_marker):
 
2121
    def update(self, change_reporter=None, possible_transports=None):
2213
2122
        """Update a working tree along its branch.
2214
2123
 
2215
2124
        This will update the branch if its bound too, which means we have
2233
2142
        - Merge current state -> basis tree of the master w.r.t. the old tree
2234
2143
          basis.
2235
2144
        - Do a 'normal' merge of the old branch basis if it is relevant.
2236
 
 
2237
 
        :param revision: The target revision to update to. Must be in the
2238
 
            revision history.
2239
 
        :param old_tip: If branch.update() has already been run, the value it
2240
 
            returned (old tip of the branch or None). _marker is used
2241
 
            otherwise.
2242
2145
        """
2243
2146
        if self.branch.get_bound_location() is not None:
2244
2147
            self.lock_write()
2245
 
            update_branch = (old_tip is self._marker)
 
2148
            update_branch = True
2246
2149
        else:
2247
2150
            self.lock_tree_write()
2248
2151
            update_branch = False
2250
2153
            if update_branch:
2251
2154
                old_tip = self.branch.update(possible_transports)
2252
2155
            else:
2253
 
                if old_tip is self._marker:
2254
 
                    old_tip = None
2255
 
            return self._update_tree(old_tip, change_reporter, revision)
 
2156
                old_tip = None
 
2157
            return self._update_tree(old_tip, change_reporter)
2256
2158
        finally:
2257
2159
            self.unlock()
2258
2160
 
2259
2161
    @needs_tree_write_lock
2260
 
    def _update_tree(self, old_tip=None, change_reporter=None, revision=None):
 
2162
    def _update_tree(self, old_tip=None, change_reporter=None):
2261
2163
        """Update a tree to the master branch.
2262
2164
 
2263
2165
        :param old_tip: if supplied, the previous tip revision the branch,
2273
2175
        # We MUST save it even if an error occurs, because otherwise the users
2274
2176
        # local work is unreferenced and will appear to have been lost.
2275
2177
        #
2276
 
        nb_conflicts = 0
 
2178
        result = 0
2277
2179
        try:
2278
2180
            last_rev = self.get_parent_ids()[0]
2279
2181
        except IndexError:
2280
2182
            last_rev = _mod_revision.NULL_REVISION
2281
 
        if revision is None:
2282
 
            revision = self.branch.last_revision()
2283
 
 
2284
 
        old_tip = old_tip or _mod_revision.NULL_REVISION
2285
 
 
2286
 
        if not _mod_revision.is_null(old_tip) and old_tip != last_rev:
2287
 
            # the branch we are bound to was updated
2288
 
            # merge those changes in first
2289
 
            base_tree  = self.basis_tree()
2290
 
            other_tree = self.branch.repository.revision_tree(old_tip)
2291
 
            nb_conflicts = merge.merge_inner(self.branch, other_tree,
2292
 
                                             base_tree, this_tree=self,
2293
 
                                             change_reporter=change_reporter)
2294
 
            if nb_conflicts:
2295
 
                self.add_parent_tree((old_tip, other_tree))
2296
 
                trace.note('Rerun update after fixing the conflicts.')
2297
 
                return nb_conflicts
2298
 
 
2299
 
        if last_rev != _mod_revision.ensure_null(revision):
2300
 
            # the working tree is up to date with the branch
2301
 
            # we can merge the specified revision from master
2302
 
            to_tree = self.branch.repository.revision_tree(revision)
2303
 
            to_root_id = to_tree.get_root_id()
2304
 
 
 
2183
        if last_rev != _mod_revision.ensure_null(self.branch.last_revision()):
 
2184
            # merge tree state up to new branch tip.
2305
2185
            basis = self.basis_tree()
2306
2186
            basis.lock_read()
2307
2187
            try:
2308
 
                if (basis.inventory.root is None
2309
 
                    or basis.inventory.root.file_id != to_root_id):
2310
 
                    self.set_root_id(to_root_id)
 
2188
                to_tree = self.branch.basis_tree()
 
2189
                if basis.inventory.root is None:
 
2190
                    self.set_root_id(to_tree.get_root_id())
2311
2191
                    self.flush()
 
2192
                result += merge.merge_inner(
 
2193
                                      self.branch,
 
2194
                                      to_tree,
 
2195
                                      basis,
 
2196
                                      this_tree=self,
 
2197
                                      change_reporter=change_reporter)
2312
2198
            finally:
2313
2199
                basis.unlock()
2314
 
 
2315
 
            # determine the branch point
2316
 
            graph = self.branch.repository.get_graph()
2317
 
            base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2318
 
                                                last_rev)
2319
 
            base_tree = self.branch.repository.revision_tree(base_rev_id)
2320
 
 
2321
 
            nb_conflicts = merge.merge_inner(self.branch, to_tree, base_tree,
2322
 
                                             this_tree=self,
2323
 
                                             change_reporter=change_reporter)
2324
 
            self.set_last_revision(revision)
2325
2200
            # TODO - dedup parents list with things merged by pull ?
2326
2201
            # reuse the tree we've updated to to set the basis:
2327
 
            parent_trees = [(revision, to_tree)]
 
2202
            parent_trees = [(self.branch.last_revision(), to_tree)]
2328
2203
            merges = self.get_parent_ids()[1:]
2329
2204
            # Ideally we ask the tree for the trees here, that way the working
2330
 
            # tree can decide whether to give us the entire tree or give us a
 
2205
            # tree can decide whether to give us teh entire tree or give us a
2331
2206
            # lazy initialised tree. dirstate for instance will have the trees
2332
2207
            # in ram already, whereas a last-revision + basis-inventory tree
2333
2208
            # will not, but also does not need them when setting parents.
2334
2209
            for parent in merges:
2335
2210
                parent_trees.append(
2336
2211
                    (parent, self.branch.repository.revision_tree(parent)))
2337
 
            if not _mod_revision.is_null(old_tip):
 
2212
            if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2338
2213
                parent_trees.append(
2339
2214
                    (old_tip, self.branch.repository.revision_tree(old_tip)))
2340
2215
            self.set_parent_trees(parent_trees)
2341
2216
            last_rev = parent_trees[0][0]
2342
 
        return nb_conflicts
 
2217
        else:
 
2218
            # the working tree had the same last-revision as the master
 
2219
            # branch did. We may still have pivot local work from the local
 
2220
            # branch into old_tip:
 
2221
            if (old_tip is not None and not _mod_revision.is_null(old_tip)):
 
2222
                self.add_parent_tree_id(old_tip)
 
2223
        if (old_tip is not None and not _mod_revision.is_null(old_tip)
 
2224
            and old_tip != last_rev):
 
2225
            # our last revision was not the prior branch last revision
 
2226
            # and we have converted that last revision to a pending merge.
 
2227
            # base is somewhere between the branch tip now
 
2228
            # and the now pending merge
 
2229
 
 
2230
            # Since we just modified the working tree and inventory, flush out
 
2231
            # the current state, before we modify it again.
 
2232
            # TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
 
2233
            #       requires it only because TreeTransform directly munges the
 
2234
            #       inventory and calls tree._write_inventory(). Ultimately we
 
2235
            #       should be able to remove this extra flush.
 
2236
            self.flush()
 
2237
            graph = self.branch.repository.get_graph()
 
2238
            base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
 
2239
                                                old_tip)
 
2240
            base_tree = self.branch.repository.revision_tree(base_rev_id)
 
2241
            other_tree = self.branch.repository.revision_tree(old_tip)
 
2242
            result += merge.merge_inner(
 
2243
                                  self.branch,
 
2244
                                  other_tree,
 
2245
                                  base_tree,
 
2246
                                  this_tree=self,
 
2247
                                  change_reporter=change_reporter)
 
2248
        return result
2343
2249
 
2344
2250
    def _write_hashcache_if_dirty(self):
2345
2251
        """Write out the hashcache if it is dirty."""
2445
2351
                    bzrdir_loc = bisect_left(cur_disk_dir_content,
2446
2352
                        ('.bzr', '.bzr'))
2447
2353
                    if (bzrdir_loc < len(cur_disk_dir_content)
2448
 
                        and self.bzrdir.is_control_filename(
2449
 
                            cur_disk_dir_content[bzrdir_loc][0])):
 
2354
                        and cur_disk_dir_content[bzrdir_loc][0] == '.bzr'):
2450
2355
                        # we dont yield the contents of, or, .bzr itself.
2451
2356
                        del cur_disk_dir_content[bzrdir_loc]
2452
2357
            if inv_finished:
2586
2491
        return un_resolved, resolved
2587
2492
 
2588
2493
    @needs_read_lock
2589
 
    def _check(self, references):
2590
 
        """Check the tree for consistency.
2591
 
 
2592
 
        :param references: A dict with keys matching the items returned by
2593
 
            self._get_check_refs(), and values from looking those keys up in
2594
 
            the repository.
2595
 
        """
 
2494
    def _check(self):
2596
2495
        tree_basis = self.basis_tree()
2597
2496
        tree_basis.lock_read()
2598
2497
        try:
2599
 
            repo_basis = references[('trees', self.last_revision())]
 
2498
            repo_basis = self.branch.repository.revision_tree(
 
2499
                self.last_revision())
2600
2500
            if len(list(repo_basis.iter_changes(tree_basis))) > 0:
2601
2501
                raise errors.BzrCheckError(
2602
2502
                    "Mismatched basis inventory content.")
2615
2515
        """
2616
2516
        return
2617
2517
 
 
2518
    @needs_read_lock
2618
2519
    def _get_rules_searcher(self, default_searcher):
2619
2520
        """See Tree._get_rules_searcher."""
2620
2521
        if self._rules_searcher is None:
2647
2548
        if self._inventory is None:
2648
2549
            self.read_working_inventory()
2649
2550
 
2650
 
    def _get_check_refs(self):
2651
 
        """Return the references needed to perform a check of this tree."""
2652
 
        return [('trees', self.last_revision())]
2653
 
 
2654
2551
    def lock_tree_write(self):
2655
2552
        """See WorkingTree.lock_tree_write().
2656
2553
 
2657
2554
        In Format2 WorkingTrees we have a single lock for the branch and tree
2658
2555
        so lock_tree_write() degrades to lock_write().
2659
 
 
2660
 
        :return: An object with an unlock method which will release the lock
2661
 
            obtained.
2662
2556
        """
2663
2557
        self.branch.lock_write()
2664
2558
        try:
2665
 
            self._control_files.lock_write()
2666
 
            return self
 
2559
            return self._control_files.lock_write()
2667
2560
        except:
2668
2561
            self.branch.unlock()
2669
2562
            raise
2706
2599
 
2707
2600
    def _change_last_revision(self, revision_id):
2708
2601
        """See WorkingTree._change_last_revision."""
2709
 
        if revision_id is None or revision_id == _mod_revision.NULL_REVISION:
 
2602
        if revision_id is None or revision_id == NULL_REVISION:
2710
2603
            try:
2711
2604
                self._transport.delete('last-revision')
2712
2605
            except errors.NoSuchFile:
2714
2607
            return False
2715
2608
        else:
2716
2609
            self._transport.put_bytes('last-revision', revision_id,
2717
 
                mode=self.bzrdir._get_file_mode())
 
2610
                mode=self._control_files._file_mode)
2718
2611
            return True
2719
2612
 
2720
 
    def _get_check_refs(self):
2721
 
        """Return the references needed to perform a check of this tree."""
2722
 
        return [('trees', self.last_revision())]
2723
 
 
2724
2613
    @needs_tree_write_lock
2725
2614
    def set_conflicts(self, conflicts):
2726
2615
        self._put_rio('conflicts', conflicts.to_stanzas(),
2803
2692
        """Return the format for the working tree object in a_bzrdir."""
2804
2693
        try:
2805
2694
            transport = a_bzrdir.get_workingtree_transport(None)
2806
 
            format_string = transport.get_bytes("format")
 
2695
            format_string = transport.get("format").read()
2807
2696
            return klass._formats[format_string]
2808
2697
        except errors.NoSuchFile:
2809
2698
            raise errors.NoWorkingTree(base=transport.base)
2880
2769
        no working tree.  (See bug #43064).
2881
2770
        """
2882
2771
        sio = StringIO()
2883
 
        inv = inventory.Inventory()
 
2772
        inv = Inventory()
2884
2773
        xml5.serializer_v5.write_inventory(inv, sio, working=True)
2885
2774
        sio.seek(0)
2886
2775
        transport.put_file('inventory', sio, file_mode)
2902
2791
            branch.generate_revision_history(revision_id)
2903
2792
        finally:
2904
2793
            branch.unlock()
2905
 
        inv = inventory.Inventory()
 
2794
        inv = Inventory()
2906
2795
        wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2907
2796
                         branch,
2908
2797
                         inv,
2999
2888
        control_files.create_lock()
3000
2889
        control_files.lock_write()
3001
2890
        transport.put_bytes('format', self.get_format_string(),
3002
 
            mode=a_bzrdir._get_file_mode())
 
2891
            mode=control_files._file_mode)
3003
2892
        if from_branch is not None:
3004
2893
            branch = from_branch
3005
2894
        else:
3025
2914
            # only set an explicit root id if there is one to set.
3026
2915
            if basis_tree.inventory.root is not None:
3027
2916
                wt.set_root_id(basis_tree.get_root_id())
3028
 
            if revision_id == _mod_revision.NULL_REVISION:
 
2917
            if revision_id == NULL_REVISION:
3029
2918
                wt.set_parent_trees([])
3030
2919
            else:
3031
2920
                wt.set_parent_trees([(revision_id, basis_tree)])
3038
2927
        return wt
3039
2928
 
3040
2929
    def _initial_inventory(self):
3041
 
        return inventory.Inventory()
 
2930
        return Inventory()
3042
2931
 
3043
2932
    def __init__(self):
3044
2933
        super(WorkingTreeFormat3, self).__init__()
3073
2962
        return self.get_format_string()
3074
2963
 
3075
2964
 
3076
 
__default_format = WorkingTreeFormat6()
 
2965
__default_format = WorkingTreeFormat4()
3077
2966
WorkingTreeFormat.register_format(__default_format)
3078
2967
WorkingTreeFormat.register_format(WorkingTreeFormat5())
3079
 
WorkingTreeFormat.register_format(WorkingTreeFormat4())
3080
2968
WorkingTreeFormat.register_format(WorkingTreeFormat3())
3081
2969
WorkingTreeFormat.set_default_format(__default_format)
3082
2970
# formats which have no format string are not discoverable