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Viewing changes to bzrlib/workingtree_4.py

(John Arbash Meinel) Fix bug #75721: 'bzr push' should only connect a single time.

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1
 
# Copyright (C) 2007-2010 Canonical Ltd
 
1
# Copyright (C) 2005, 2006, 2007 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
"""WorkingTree4 format and implementation.
18
18
 
28
28
 
29
29
from bzrlib.lazy_import import lazy_import
30
30
lazy_import(globals(), """
 
31
from bisect import bisect_left
 
32
import collections
 
33
from copy import deepcopy
31
34
import errno
 
35
import itertools
 
36
import operator
32
37
import stat
 
38
from time import time
 
39
import warnings
33
40
 
34
41
import bzrlib
35
42
from bzrlib import (
36
43
    bzrdir,
37
44
    cache_utf8,
38
 
    debug,
 
45
    conflicts as _mod_conflicts,
 
46
    delta,
39
47
    dirstate,
40
48
    errors,
41
49
    generate_ids,
 
50
    globbing,
 
51
    hashcache,
 
52
    ignores,
 
53
    merge,
42
54
    osutils,
43
 
    revision as _mod_revision,
44
55
    revisiontree,
45
 
    trace,
 
56
    textui,
46
57
    transform,
47
 
    views,
 
58
    urlutils,
 
59
    xml5,
 
60
    xml6,
48
61
    )
49
62
import bzrlib.branch
 
63
from bzrlib.transport import get_transport
50
64
import bzrlib.ui
51
65
""")
52
66
 
 
67
from bzrlib import symbol_versioning
53
68
from bzrlib.decorators import needs_read_lock, needs_write_lock
54
 
from bzrlib.filters import filtered_input_file, internal_size_sha_file_byname
55
 
from bzrlib.inventory import Inventory, ROOT_ID, entry_factory
 
69
from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, entry_factory
 
70
from bzrlib.lockable_files import LockableFiles, TransportLock
 
71
from bzrlib.lockdir import LockDir
 
72
import bzrlib.mutabletree
56
73
from bzrlib.mutabletree import needs_tree_write_lock
57
74
from bzrlib.osutils import (
58
75
    file_kind,
59
76
    isdir,
 
77
    normpath,
60
78
    pathjoin,
 
79
    rand_chars,
61
80
    realpath,
62
81
    safe_unicode,
 
82
    splitpath,
63
83
    )
64
 
from bzrlib.trace import mutter
 
84
from bzrlib.trace import mutter, note
65
85
from bzrlib.transport.local import LocalTransport
66
86
from bzrlib.tree import InterTree
 
87
from bzrlib.progress import DummyProgress, ProgressPhase
 
88
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
 
89
from bzrlib.rio import RioReader, rio_file, Stanza
 
90
from bzrlib.symbol_versioning import (deprecated_passed,
 
91
        deprecated_method,
 
92
        deprecated_function,
 
93
        DEPRECATED_PARAMETER,
 
94
        )
67
95
from bzrlib.tree import Tree
68
96
from bzrlib.workingtree import WorkingTree, WorkingTree3, WorkingTreeFormat3
69
97
 
70
98
 
71
 
class DirStateWorkingTree(WorkingTree3):
 
99
# This is the Windows equivalent of ENOTDIR
 
100
# It is defined in pywin32.winerror, but we don't want a strong dependency for
 
101
# just an error code.
 
102
ERROR_PATH_NOT_FOUND = 3
 
103
ERROR_DIRECTORY = 267
 
104
 
 
105
 
 
106
class WorkingTree4(WorkingTree3):
 
107
    """This is the Format 4 working tree.
 
108
 
 
109
    This differs from WorkingTree3 by:
 
110
     - Having a consolidated internal dirstate, stored in a
 
111
       randomly-accessible sorted file on disk.
 
112
     - Not having a regular inventory attribute.  One can be synthesized 
 
113
       on demand but this is expensive and should be avoided.
 
114
 
 
115
    This is new in bzr 0.15.
 
116
    """
 
117
 
72
118
    def __init__(self, basedir,
73
119
                 branch,
74
120
                 _control_files=None,
83
129
        """
84
130
        self._format = _format
85
131
        self.bzrdir = _bzrdir
 
132
        from bzrlib.trace import note, mutter
 
133
        assert isinstance(basedir, basestring), \
 
134
            "base directory %r is not a string" % basedir
86
135
        basedir = safe_unicode(basedir)
87
136
        mutter("opening working tree %r", basedir)
88
137
        self._branch = branch
 
138
        assert isinstance(self.branch, bzrlib.branch.Branch), \
 
139
            "branch %r is not a Branch" % self.branch
89
140
        self.basedir = realpath(basedir)
90
141
        # if branch is at our basedir and is a format 6 or less
91
142
        # assume all other formats have their own control files.
 
143
        assert isinstance(_control_files, LockableFiles), \
 
144
            "_control_files must be a LockableFiles, not %r" % _control_files
92
145
        self._control_files = _control_files
93
 
        self._transport = self._control_files._transport
94
146
        self._dirty = None
95
147
        #-------------
96
148
        # during a read or write lock these objects are set, and are
98
150
        self._dirstate = None
99
151
        self._inventory = None
100
152
        #-------------
101
 
        self._setup_directory_is_tree_reference()
102
 
        self._detect_case_handling()
103
 
        self._rules_searcher = None
104
 
        self.views = self._make_views()
105
 
        #--- allow tests to select the dirstate iter_changes implementation
106
 
        self._iter_changes = dirstate._process_entry
107
153
 
108
154
    @needs_tree_write_lock
109
155
    def _add(self, files, ids, kinds):
111
157
        state = self.current_dirstate()
112
158
        for f, file_id, kind in zip(files, ids, kinds):
113
159
            f = f.strip('/')
 
160
            assert '//' not in f
 
161
            assert '..' not in f
114
162
            if self.path2id(f):
115
163
                # special case tree root handling.
116
164
                if f == '' and self.path2id(f) == ROOT_ID:
137
185
    @needs_tree_write_lock
138
186
    def add_reference(self, sub_tree):
139
187
        # use standard implementation, which calls back to self._add
140
 
        #
 
188
        # 
141
189
        # So we don't store the reference_revision in the working dirstate,
142
 
        # it's just recorded at the moment of commit.
 
190
        # it's just recorded at the moment of commit. 
143
191
        self._add_reference(sub_tree)
144
192
 
145
193
    def break_lock(self):
184
232
            WorkingTree3._comparison_data(self, entry, path)
185
233
        # it looks like a plain directory, but it's really a reference -- see
186
234
        # also kind()
187
 
        if (self._repo_supports_tree_reference and kind == 'directory'
188
 
            and entry is not None and entry.kind == 'tree-reference'):
 
235
        if (self._repo_supports_tree_reference and
 
236
            kind == 'directory' and
 
237
            self._directory_is_tree_reference(path)):
189
238
            kind = 'tree-reference'
190
239
        return kind, executable, stat_value
191
240
 
217
266
            return self._dirstate
218
267
        local_path = self.bzrdir.get_workingtree_transport(None
219
268
            ).local_abspath('dirstate')
220
 
        self._dirstate = dirstate.DirState.on_file(local_path,
221
 
            self._sha1_provider())
 
269
        self._dirstate = dirstate.DirState.on_file(local_path)
222
270
        return self._dirstate
223
271
 
224
 
    def _sha1_provider(self):
225
 
        """A function that returns a SHA1Provider suitable for this tree.
226
 
 
227
 
        :return: None if content filtering is not supported by this tree.
228
 
          Otherwise, a SHA1Provider is returned that sha's the canonical
229
 
          form of files, i.e. after read filters are applied.
230
 
        """
231
 
        if self.supports_content_filtering():
232
 
            return ContentFilterAwareSHA1Provider(self)
233
 
        else:
234
 
            return None
 
272
    def _directory_is_tree_reference(self, relpath):
 
273
        # as a special case, if a directory contains control files then 
 
274
        # it's a tree reference, except that the root of the tree is not
 
275
        return relpath and osutils.isdir(self.abspath(relpath) + u"/.bzr")
 
276
        # TODO: We could ask all the control formats whether they
 
277
        # recognize this directory, but at the moment there's no cheap api
 
278
        # to do that.  Since we probably can only nest bzr checkouts and
 
279
        # they always use this name it's ok for now.  -- mbp 20060306
 
280
        #
 
281
        # FIXME: There is an unhandled case here of a subdirectory
 
282
        # containing .bzr but not a branch; that will probably blow up
 
283
        # when you try to commit it.  It might happen if there is a
 
284
        # checkout in a subdirectory.  This can be avoided by not adding
 
285
        # it.  mbp 20070306
235
286
 
236
287
    def filter_unversioned_files(self, paths):
237
288
        """Filter out paths that are versioned.
270
321
 
271
322
    def _generate_inventory(self):
272
323
        """Create and set self.inventory from the dirstate object.
273
 
 
 
324
        
274
325
        This is relatively expensive: we have to walk the entire dirstate.
275
326
        Ideally we would not, and can deprecate this function.
276
327
        """
280
331
        state._read_dirblocks_if_needed()
281
332
        root_key, current_entry = self._get_entry(path='')
282
333
        current_id = root_key[2]
283
 
        if not (current_entry[0][0] == 'd'): # directory
284
 
            raise AssertionError(current_entry)
 
334
        assert current_entry[0][0] == 'd' # directory
285
335
        inv = Inventory(root_id=current_id)
286
336
        # Turn some things into local variables
287
337
        minikind_to_kind = dirstate.DirState._minikind_to_kind
320
370
                    # add this entry to the parent map.
321
371
                    parent_ies[(dirname + '/' + name).strip('/')] = inv_entry
322
372
                elif kind == 'tree-reference':
323
 
                    if not self._repo_supports_tree_reference:
324
 
                        raise errors.UnsupportedOperation(
325
 
                            self._generate_inventory,
326
 
                            self.branch.repository)
 
373
                    assert self._repo_supports_tree_reference, \
 
374
                        "repository of %r " \
 
375
                        "doesn't support tree references " \
 
376
                        "required by entry %r" \
 
377
                        % (self, name)
327
378
                    inv_entry.reference_revision = link_or_sha1 or None
328
379
                elif kind != 'symlink':
329
380
                    raise AssertionError("unknown kind %r" % kind)
330
381
                # These checks cost us around 40ms on a 55k entry tree
331
 
                if file_id in inv_byid:
332
 
                    raise AssertionError('file_id %s already in'
333
 
                        ' inventory as %s' % (file_id, inv_byid[file_id]))
334
 
                if name_unicode in parent_ie.children:
335
 
                    raise AssertionError('name %r already in parent'
336
 
                        % (name_unicode,))
 
382
                assert file_id not in inv_byid, ('file_id %s already in'
 
383
                    ' inventory as %s' % (file_id, inv_byid[file_id]))
 
384
                assert name_unicode not in parent_ie.children
337
385
                inv_byid[file_id] = inv_entry
338
386
                parent_ie.children[name_unicode] = inv_entry
339
387
        self._inventory = inv
344
392
        If either file_id or path is supplied, it is used as the key to lookup.
345
393
        If both are supplied, the fastest lookup is used, and an error is
346
394
        raised if they do not both point at the same row.
347
 
 
 
395
        
348
396
        :param file_id: An optional unicode file_id to be looked up.
349
397
        :param path: An optional unicode path to be looked up.
350
398
        :return: The dirstate row tuple for path/file_id, or (None, None)
359
407
    def get_file_sha1(self, file_id, path=None, stat_value=None):
360
408
        # check file id is valid unconditionally.
361
409
        entry = self._get_entry(file_id=file_id, path=path)
362
 
        if entry[0] is None:
363
 
            raise errors.NoSuchId(self, file_id)
 
410
        assert entry[0] is not None, 'what error should this raise'
364
411
        if path is None:
365
412
            path = pathjoin(entry[0][0], entry[0][1]).decode('utf8')
366
413
 
367
414
        file_abspath = self.abspath(path)
368
415
        state = self.current_dirstate()
369
 
        if stat_value is None:
370
 
            try:
371
 
                stat_value = os.lstat(file_abspath)
372
 
            except OSError, e:
373
 
                if e.errno == errno.ENOENT:
374
 
                    return None
375
 
                else:
376
 
                    raise
377
 
        link_or_sha1 = dirstate.update_entry(state, entry, file_abspath,
378
 
            stat_value=stat_value)
 
416
        link_or_sha1 = state.update_entry(entry, file_abspath,
 
417
                                          stat_value=stat_value)
379
418
        if entry[1][0][0] == 'f':
380
 
            if link_or_sha1 is None:
381
 
                file_obj, statvalue = self.get_file_with_stat(file_id, path)
382
 
                try:
383
 
                    sha1 = osutils.sha_file(file_obj)
384
 
                finally:
385
 
                    file_obj.close()
386
 
                self._observed_sha1(file_id, path, (sha1, statvalue))
387
 
                return sha1
388
 
            else:
389
 
                return link_or_sha1
 
419
            return link_or_sha1
390
420
        return None
391
421
 
392
422
    def _get_inventory(self):
393
423
        """Get the inventory for the tree. This is only valid within a lock."""
394
 
        if 'evil' in debug.debug_flags:
395
 
            trace.mutter_callsite(2,
396
 
                "accessing .inventory forces a size of tree translation.")
397
424
        if self._inventory is not None:
398
425
            return self._inventory
399
426
        self._must_be_locked()
406
433
    @needs_read_lock
407
434
    def get_parent_ids(self):
408
435
        """See Tree.get_parent_ids.
409
 
 
 
436
        
410
437
        This implementation requests the ids list from the dirstate file.
411
438
        """
412
439
        return self.current_dirstate().get_parent_ids()
428
455
 
429
456
    def has_id(self, file_id):
430
457
        state = self.current_dirstate()
 
458
        file_id = osutils.safe_file_id(file_id)
431
459
        row, parents = self._get_entry(file_id=file_id)
432
460
        if row is None:
433
461
            return False
434
462
        return osutils.lexists(pathjoin(
435
463
                    self.basedir, row[0].decode('utf8'), row[1].decode('utf8')))
436
464
 
437
 
    def has_or_had_id(self, file_id):
438
 
        state = self.current_dirstate()
439
 
        row, parents = self._get_entry(file_id=file_id)
440
 
        return row is not None
441
 
 
442
465
    @needs_read_lock
443
466
    def id2path(self, file_id):
444
 
        "Convert a file-id to a path."
 
467
        file_id = osutils.safe_file_id(file_id)
445
468
        state = self.current_dirstate()
446
469
        entry = self._get_entry(file_id=file_id)
447
470
        if entry == (None, None):
449
472
        path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
450
473
        return path_utf8.decode('utf8')
451
474
 
452
 
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
453
 
        entry = self._get_entry(path=path)
454
 
        if entry == (None, None):
455
 
            return False # Missing entries are not executable
456
 
        return entry[1][0][3] # Executable?
457
 
 
458
475
    if not osutils.supports_executable():
 
476
        @needs_read_lock
459
477
        def is_executable(self, file_id, path=None):
460
 
            """Test if a file is executable or not.
461
 
 
462
 
            Note: The caller is expected to take a read-lock before calling this.
463
 
            """
 
478
            file_id = osutils.safe_file_id(file_id)
464
479
            entry = self._get_entry(file_id=file_id, path=path)
465
480
            if entry == (None, None):
466
481
                return False
467
482
            return entry[1][0][3]
468
 
 
469
 
        _is_executable_from_path_and_stat = \
470
 
            _is_executable_from_path_and_stat_from_basis
471
483
    else:
 
484
        @needs_read_lock
472
485
        def is_executable(self, file_id, path=None):
473
 
            """Test if a file is executable or not.
474
 
 
475
 
            Note: The caller is expected to take a read-lock before calling this.
476
 
            """
477
 
            self._must_be_locked()
478
486
            if not path:
 
487
                file_id = osutils.safe_file_id(file_id)
479
488
                path = self.id2path(file_id)
480
489
            mode = os.lstat(self.abspath(path)).st_mode
481
490
            return bool(stat.S_ISREG(mode) and stat.S_IEXEC & mode)
482
491
 
483
 
    def all_file_ids(self):
484
 
        """See Tree.iter_all_file_ids"""
485
 
        self._must_be_locked()
486
 
        result = set()
487
 
        for key, tree_details in self.current_dirstate()._iter_entries():
488
 
            if tree_details[0][0] in ('a', 'r'): # relocated
489
 
                continue
490
 
            result.add(key[2])
491
 
        return result
492
 
 
493
492
    @needs_read_lock
494
493
    def __iter__(self):
495
494
        """Iterate through file_ids for this tree.
508
507
        return iter(result)
509
508
 
510
509
    def iter_references(self):
511
 
        if not self._repo_supports_tree_reference:
512
 
            # When the repo doesn't support references, we will have nothing to
513
 
            # return
514
 
            return
515
510
        for key, tree_details in self.current_dirstate()._iter_entries():
516
511
            if tree_details[0][0] in ('a', 'r'): # absent, relocated
517
512
                # not relevant to the working tree
519
514
            if not key[1]:
520
515
                # the root is not a reference.
521
516
                continue
522
 
            relpath = pathjoin(key[0].decode('utf8'), key[1].decode('utf8'))
 
517
            path = pathjoin(self.basedir, key[0].decode('utf8'), key[1].decode('utf8'))
523
518
            try:
524
 
                if self._kind(relpath) == 'tree-reference':
525
 
                    yield relpath, key[2]
 
519
                if self._kind(path) == 'tree-reference':
 
520
                    yield path, key[2]
526
521
            except errors.NoSuchFile:
527
522
                # path is missing on disk.
528
523
                continue
529
524
 
530
 
    def _observed_sha1(self, file_id, path, (sha1, statvalue)):
531
 
        """See MutableTree._observed_sha1."""
532
 
        state = self.current_dirstate()
533
 
        entry = self._get_entry(file_id=file_id, path=path)
534
 
        state._observed_sha1(entry, sha1, statvalue)
535
 
 
 
525
    @needs_read_lock
536
526
    def kind(self, file_id):
537
527
        """Return the kind of a file.
538
528
 
539
529
        This is always the actual kind that's on disk, regardless of what it
540
530
        was added as.
541
 
 
542
 
        Note: The caller is expected to take a read-lock before calling this.
543
531
        """
544
532
        relpath = self.id2path(file_id)
545
 
        if relpath is None:
546
 
            raise AssertionError(
547
 
                "path for id {%s} is None!" % file_id)
 
533
        assert relpath != None, \
 
534
            "path for id {%s} is None!" % file_id
548
535
        return self._kind(relpath)
549
536
 
550
537
    def _kind(self, relpath):
551
538
        abspath = self.abspath(relpath)
552
539
        kind = file_kind(abspath)
553
 
        if (self._repo_supports_tree_reference and kind == 'directory'):
554
 
            entry = self._get_entry(path=relpath)
555
 
            if entry[1] is not None:
556
 
                if entry[1][0][0] == 't':
557
 
                    kind = 'tree-reference'
 
540
        if (self._repo_supports_tree_reference and
 
541
            kind == 'directory' and
 
542
            self._directory_is_tree_reference(relpath)):
 
543
            kind = 'tree-reference'
558
544
        return kind
559
545
 
560
546
    @needs_read_lock
564
550
        if parent_ids:
565
551
            return parent_ids[0]
566
552
        else:
567
 
            return _mod_revision.NULL_REVISION
 
553
            return None
568
554
 
569
555
    def lock_read(self):
570
556
        """See Branch.lock_read, and WorkingTree.unlock."""
623
609
        result = []
624
610
        if not from_paths:
625
611
            return result
 
612
 
626
613
        state = self.current_dirstate()
627
 
        if isinstance(from_paths, basestring):
628
 
            raise ValueError()
 
614
 
 
615
        assert not isinstance(from_paths, basestring)
629
616
        to_dir_utf8 = to_dir.encode('utf8')
630
617
        to_entry_dirname, to_basename = os.path.split(to_dir_utf8)
631
618
        id_index = state._get_id_index()
653
640
        if self._inventory is not None:
654
641
            update_inventory = True
655
642
            inv = self.inventory
 
643
            to_dir_ie = inv[to_dir_id]
656
644
            to_dir_id = to_entry[0][2]
657
 
            to_dir_ie = inv[to_dir_id]
658
645
        else:
659
646
            update_inventory = False
660
647
 
691
678
            from_entry = self._get_entry(path=from_rel)
692
679
            if from_entry == (None, None):
693
680
                raise errors.BzrMoveFailedError(from_rel,to_dir,
694
 
                    errors.NotVersionedError(path=from_rel))
 
681
                    errors.NotVersionedError(path=str(from_rel)))
695
682
 
696
683
            from_id = from_entry[0][2]
697
684
            to_rel = pathjoin(to_dir, from_tail)
724
711
                if from_missing: # implicitly just update our path mapping
725
712
                    move_file = False
726
713
                elif not after:
727
 
                    raise errors.RenameFailedFilesExist(from_rel, to_rel)
 
714
                    raise errors.RenameFailedFilesExist(from_rel, to_rel,
 
715
                        extra="(Use --after to update the Bazaar id)")
728
716
 
729
717
            rollbacks = []
730
718
            def rollback_rename():
786
774
                if minikind == 'd':
787
775
                    def update_dirblock(from_dir, to_key, to_dir_utf8):
788
776
                        """Recursively update all entries in this dirblock."""
789
 
                        if from_dir == '':
790
 
                            raise AssertionError("renaming root not supported")
 
777
                        assert from_dir != '', "renaming root not supported"
791
778
                        from_key = (from_dir, '')
792
779
                        from_block_idx, present = \
793
780
                            state._find_block_index_from_key(from_key)
806
793
 
807
794
                        # Grab a copy since move_one may update the list.
808
795
                        for entry in from_block[1][:]:
809
 
                            if not (entry[0][0] == from_dir):
810
 
                                raise AssertionError()
 
796
                            assert entry[0][0] == from_dir
811
797
                            cur_details = entry[1][0]
812
798
                            to_key = (to_dir_utf8, entry[0][1], entry[0][2])
813
799
                            from_path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
872
858
        for tree in trees:
873
859
            if not (isinstance(tree, DirStateRevisionTree) and tree._revision_id in
874
860
                parents):
875
 
                return super(DirStateWorkingTree, self).paths2ids(paths,
876
 
                    trees, require_versioned)
 
861
                return super(WorkingTree4, self).paths2ids(paths, trees, require_versioned)
877
862
        search_indexes = [0] + [1 + parents.index(tree._revision_id) for tree in trees]
878
863
        # -- make all paths utf8 --
879
864
        paths_utf8 = set()
939
924
            if not all_versioned:
940
925
                raise errors.PathsNotVersionedError(paths)
941
926
        # -- remove redundancy in supplied paths to prevent over-scanning --
942
 
        search_paths = osutils.minimum_path_selection(paths)
943
 
        # sketch:
 
927
        search_paths = set()
 
928
        for path in paths:
 
929
            other_paths = paths.difference(set([path]))
 
930
            if not osutils.is_inside_any(other_paths, path):
 
931
                # this is a top level path, we must check it.
 
932
                search_paths.add(path)
 
933
        # sketch: 
944
934
        # for all search_indexs in each path at or under each element of
945
935
        # search_paths, if the detail is relocated: add the id, and add the
946
936
        # relocated path as one to search if its not searched already. If the
1002
992
 
1003
993
    def read_working_inventory(self):
1004
994
        """Read the working inventory.
1005
 
 
 
995
        
1006
996
        This is a meaningless operation for dirstate, but we obey it anyhow.
1007
997
        """
1008
998
        return self.inventory
1013
1003
 
1014
1004
        WorkingTree4 supplies revision_trees for any basis tree.
1015
1005
        """
 
1006
        revision_id = osutils.safe_revision_id(revision_id)
1016
1007
        dirstate = self.current_dirstate()
1017
1008
        parent_ids = dirstate.get_parent_ids()
1018
1009
        if revision_id not in parent_ids:
1025
1016
    @needs_tree_write_lock
1026
1017
    def set_last_revision(self, new_revision):
1027
1018
        """Change the last revision in the working tree."""
 
1019
        new_revision = osutils.safe_revision_id(new_revision)
1028
1020
        parents = self.get_parent_ids()
1029
 
        if new_revision in (_mod_revision.NULL_REVISION, None):
1030
 
            if len(parents) >= 2:
1031
 
                raise AssertionError(
1032
 
                    "setting the last parent to none with a pending merge is "
1033
 
                    "unsupported.")
 
1021
        if new_revision in (NULL_REVISION, None):
 
1022
            assert len(parents) < 2, (
 
1023
                "setting the last parent to none with a pending merge is "
 
1024
                "unsupported.")
1034
1025
            self.set_parent_ids([])
1035
1026
        else:
1036
1027
            self.set_parent_ids([new_revision] + parents[1:],
1039
1030
    @needs_tree_write_lock
1040
1031
    def set_parent_ids(self, revision_ids, allow_leftmost_as_ghost=False):
1041
1032
        """Set the parent ids to revision_ids.
1042
 
 
 
1033
        
1043
1034
        See also set_parent_trees. This api will try to retrieve the tree data
1044
1035
        for each element of revision_ids from the trees repository. If you have
1045
1036
        tree data already available, it is more efficient to use
1049
1040
        :param revision_ids: The revision_ids to set as the parent ids of this
1050
1041
            working tree. Any of these may be ghosts.
1051
1042
        """
 
1043
        revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1052
1044
        trees = []
1053
1045
        for revision_id in revision_ids:
1054
1046
            try:
1060
1052
            except (errors.NoSuchRevision, errors.RevisionNotPresent):
1061
1053
                revtree = None
1062
1054
            trees.append((revision_id, revtree))
 
1055
        self.current_dirstate()._validate()
1063
1056
        self.set_parent_trees(trees,
1064
1057
            allow_leftmost_as_ghost=allow_leftmost_as_ghost)
 
1058
        self.current_dirstate()._validate()
1065
1059
 
1066
1060
    @needs_tree_write_lock
1067
1061
    def set_parent_trees(self, parents_list, allow_leftmost_as_ghost=False):
1072
1066
            parent tree - i.e. a ghost.
1073
1067
        """
1074
1068
        dirstate = self.current_dirstate()
 
1069
        dirstate._validate()
1075
1070
        if len(parents_list) > 0:
1076
1071
            if not allow_leftmost_as_ghost and parents_list[0][1] is None:
1077
1072
                raise errors.GhostRevisionUnusableHere(parents_list[0][0])
1078
1073
        real_trees = []
1079
1074
        ghosts = []
1080
 
 
1081
 
        parent_ids = [rev_id for rev_id, tree in parents_list]
1082
 
        graph = self.branch.repository.get_graph()
1083
 
        heads = graph.heads(parent_ids)
1084
 
        accepted_revisions = set()
1085
 
 
1086
1075
        # convert absent trees to the null tree, which we convert back to
1087
1076
        # missing on access.
1088
1077
        for rev_id, tree in parents_list:
1089
 
            if len(accepted_revisions) > 0:
1090
 
                # we always accept the first tree
1091
 
                if rev_id in accepted_revisions or rev_id not in heads:
1092
 
                    # We have already included either this tree, or its
1093
 
                    # descendent, so we skip it.
1094
 
                    continue
1095
 
            _mod_revision.check_not_reserved_id(rev_id)
 
1078
            rev_id = osutils.safe_revision_id(rev_id)
1096
1079
            if tree is not None:
1097
1080
                real_trees.append((rev_id, tree))
1098
1081
            else:
1099
1082
                real_trees.append((rev_id,
1100
 
                    self.branch.repository.revision_tree(
1101
 
                        _mod_revision.NULL_REVISION)))
 
1083
                    self.branch.repository.revision_tree(None)))
1102
1084
                ghosts.append(rev_id)
1103
 
            accepted_revisions.add(rev_id)
 
1085
        dirstate._validate()
1104
1086
        dirstate.set_parent_trees(real_trees, ghosts=ghosts)
 
1087
        dirstate._validate()
1105
1088
        self._make_dirty(reset_inventory=False)
 
1089
        dirstate._validate()
1106
1090
 
1107
1091
    def _set_root_id(self, file_id):
1108
1092
        """See WorkingTree.set_root_id."""
1111
1095
        if state._dirblock_state == dirstate.DirState.IN_MEMORY_MODIFIED:
1112
1096
            self._make_dirty(reset_inventory=True)
1113
1097
 
1114
 
    def _sha_from_stat(self, path, stat_result):
1115
 
        """Get a sha digest from the tree's stat cache.
1116
 
 
1117
 
        The default implementation assumes no stat cache is present.
1118
 
 
1119
 
        :param path: The path.
1120
 
        :param stat_result: The stat result being looked up.
1121
 
        """
1122
 
        return self.current_dirstate().sha1_from_stat(path, stat_result)
1123
 
 
1124
1098
    @needs_read_lock
1125
1099
    def supports_tree_reference(self):
1126
1100
        return self._repo_supports_tree_reference
1127
1101
 
1128
1102
    def unlock(self):
1129
1103
        """Unlock in format 4 trees needs to write the entire dirstate."""
1130
 
        # do non-implementation specific cleanup
1131
 
        self._cleanup()
1132
 
 
1133
1104
        if self._control_files._lock_count == 1:
1134
1105
            # eventually we should do signature checking during read locks for
1135
1106
            # dirstate updates.
1166
1137
            return
1167
1138
        state = self.current_dirstate()
1168
1139
        state._read_dirblocks_if_needed()
1169
 
        ids_to_unversion = set(file_ids)
 
1140
        ids_to_unversion = set()
 
1141
        for file_id in file_ids:
 
1142
            ids_to_unversion.add(osutils.safe_file_id(file_id))
1170
1143
        paths_to_unversion = set()
1171
1144
        # sketch:
1172
1145
        # check if the root is to be unversioned, if so, assert for now.
1199
1172
                # just forget the whole block.
1200
1173
                entry_index = 0
1201
1174
                while entry_index < len(block[1]):
 
1175
                    # Mark this file id as having been removed
1202
1176
                    entry = block[1][entry_index]
1203
 
                    if entry[1][0][0] in 'ar':
1204
 
                        # don't remove absent or renamed entries
 
1177
                    ids_to_unversion.discard(entry[0][2])
 
1178
                    if (entry[1][0][0] == 'a'
 
1179
                        or not state._make_absent(entry)):
1205
1180
                        entry_index += 1
1206
 
                    else:
1207
 
                        # Mark this file id as having been removed
1208
 
                        ids_to_unversion.discard(entry[0][2])
1209
 
                        if not state._make_absent(entry):
1210
 
                            # The block has not shrunk.
1211
 
                            entry_index += 1
1212
1181
                # go to the next block. (At the moment we dont delete empty
1213
1182
                # dirblocks)
1214
1183
                block_index += 1
1237
1206
            for file_id in file_ids:
1238
1207
                self._inventory.remove_recursive_id(file_id)
1239
1208
 
1240
 
    @needs_tree_write_lock
1241
 
    def rename_one(self, from_rel, to_rel, after=False):
1242
 
        """See WorkingTree.rename_one"""
1243
 
        self.flush()
1244
 
        WorkingTree.rename_one(self, from_rel, to_rel, after)
1245
 
 
1246
 
    @needs_tree_write_lock
1247
 
    def apply_inventory_delta(self, changes):
1248
 
        """See MutableTree.apply_inventory_delta"""
1249
 
        state = self.current_dirstate()
1250
 
        state.update_by_delta(changes)
1251
 
        self._make_dirty(reset_inventory=True)
1252
 
 
1253
 
    def update_basis_by_delta(self, new_revid, delta):
1254
 
        """See MutableTree.update_basis_by_delta."""
1255
 
        if self.last_revision() == new_revid:
1256
 
            raise AssertionError()
1257
 
        self.current_dirstate().update_basis_by_delta(delta, new_revid)
1258
 
 
1259
1209
    @needs_read_lock
1260
1210
    def _validate(self):
1261
1211
        self._dirstate._validate()
1263
1213
    @needs_tree_write_lock
1264
1214
    def _write_inventory(self, inv):
1265
1215
        """Write inventory as the current inventory."""
1266
 
        if self._dirty:
1267
 
            raise AssertionError("attempting to write an inventory when the "
1268
 
                "dirstate is dirty will lose pending changes")
1269
 
        had_inventory = self._inventory is not None
1270
 
        # Setting self._inventory = None forces the dirstate to regenerate the
1271
 
        # working inventory. We do this because self.inventory may be inv, or
1272
 
        # may have been modified, and either case would prevent a clean delta
1273
 
        # being created.
1274
 
        self._inventory = None
1275
 
        # generate a delta,
1276
 
        delta = inv._make_delta(self.inventory)
1277
 
        # and apply it.
1278
 
        self.apply_inventory_delta(delta)
1279
 
        if had_inventory:
 
1216
        assert not self._dirty, "attempting to write an inventory when the dirstate is dirty will cause data loss"
 
1217
        self.current_dirstate().set_state_from_inventory(inv)
 
1218
        self._make_dirty(reset_inventory=False)
 
1219
        if self._inventory is not None:
1280
1220
            self._inventory = inv
1281
1221
        self.flush()
1282
1222
 
1283
1223
 
1284
 
class ContentFilterAwareSHA1Provider(dirstate.SHA1Provider):
1285
 
 
1286
 
    def __init__(self, tree):
1287
 
        self.tree = tree
1288
 
 
1289
 
    def sha1(self, abspath):
1290
 
        """See dirstate.SHA1Provider.sha1()."""
1291
 
        filters = self.tree._content_filter_stack(
1292
 
            self.tree.relpath(osutils.safe_unicode(abspath)))
1293
 
        return internal_size_sha_file_byname(abspath, filters)[1]
1294
 
 
1295
 
    def stat_and_sha1(self, abspath):
1296
 
        """See dirstate.SHA1Provider.stat_and_sha1()."""
1297
 
        filters = self.tree._content_filter_stack(
1298
 
            self.tree.relpath(osutils.safe_unicode(abspath)))
1299
 
        file_obj = file(abspath, 'rb', 65000)
1300
 
        try:
1301
 
            statvalue = os.fstat(file_obj.fileno())
1302
 
            if filters:
1303
 
                file_obj = filtered_input_file(file_obj, filters)
1304
 
            sha1 = osutils.size_sha_file(file_obj)[1]
1305
 
        finally:
1306
 
            file_obj.close()
1307
 
        return statvalue, sha1
1308
 
 
1309
 
 
1310
 
class ContentFilteringDirStateWorkingTree(DirStateWorkingTree):
1311
 
    """Dirstate working tree that supports content filtering.
1312
 
 
1313
 
    The dirstate holds the hash and size of the canonical form of the file, 
1314
 
    and most methods must return that.
1315
 
    """
1316
 
 
1317
 
    def _file_content_summary(self, path, stat_result):
1318
 
        # This is to support the somewhat obsolete path_content_summary method
1319
 
        # with content filtering: see
1320
 
        # <https://bugs.edge.launchpad.net/bzr/+bug/415508>.
1321
 
        #
1322
 
        # If the dirstate cache is up to date and knows the hash and size,
1323
 
        # return that.
1324
 
        # Otherwise if there are no content filters, return the on-disk size
1325
 
        # and leave the hash blank.
1326
 
        # Otherwise, read and filter the on-disk file and use its size and
1327
 
        # hash.
1328
 
        #
1329
 
        # The dirstate doesn't store the size of the canonical form so we
1330
 
        # can't trust it for content-filtered trees.  We just return None.
1331
 
        dirstate_sha1 = self._dirstate.sha1_from_stat(path, stat_result)
1332
 
        executable = self._is_executable_from_path_and_stat(path, stat_result)
1333
 
        return ('file', None, executable, dirstate_sha1)
1334
 
 
1335
 
 
1336
 
class WorkingTree4(DirStateWorkingTree):
1337
 
    """This is the Format 4 working tree.
1338
 
 
1339
 
    This differs from WorkingTree3 by:
1340
 
     - Having a consolidated internal dirstate, stored in a
1341
 
       randomly-accessible sorted file on disk.
1342
 
     - Not having a regular inventory attribute.  One can be synthesized
1343
 
       on demand but this is expensive and should be avoided.
1344
 
 
1345
 
    This is new in bzr 0.15.
1346
 
    """
1347
 
 
1348
 
 
1349
 
class WorkingTree5(ContentFilteringDirStateWorkingTree):
1350
 
    """This is the Format 5 working tree.
1351
 
 
1352
 
    This differs from WorkingTree4 by:
1353
 
     - Supporting content filtering.
1354
 
 
1355
 
    This is new in bzr 1.11.
1356
 
    """
1357
 
 
1358
 
 
1359
 
class WorkingTree6(ContentFilteringDirStateWorkingTree):
1360
 
    """This is the Format 6 working tree.
1361
 
 
1362
 
    This differs from WorkingTree5 by:
1363
 
     - Supporting a current view that may mask the set of files in a tree
1364
 
       impacted by most user operations.
1365
 
 
1366
 
    This is new in bzr 1.14.
1367
 
    """
1368
 
 
1369
 
    def _make_views(self):
1370
 
        return views.PathBasedViews(self)
1371
 
 
1372
 
 
1373
 
class DirStateWorkingTreeFormat(WorkingTreeFormat3):
1374
 
 
1375
 
    def initialize(self, a_bzrdir, revision_id=None, from_branch=None,
1376
 
                   accelerator_tree=None, hardlink=False):
 
1224
class WorkingTreeFormat4(WorkingTreeFormat3):
 
1225
    """The first consolidated dirstate working tree format.
 
1226
 
 
1227
    This format:
 
1228
        - exists within a metadir controlling .bzr
 
1229
        - includes an explicit version marker for the workingtree control
 
1230
          files, separate from the BzrDir format
 
1231
        - modifies the hash cache format
 
1232
        - is new in bzr 0.15
 
1233
        - uses a LockDir to guard access to it.
 
1234
    """
 
1235
 
 
1236
    upgrade_recommended = False
 
1237
 
 
1238
    def get_format_string(self):
 
1239
        """See WorkingTreeFormat.get_format_string()."""
 
1240
        return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
 
1241
 
 
1242
    def get_format_description(self):
 
1243
        """See WorkingTreeFormat.get_format_description()."""
 
1244
        return "Working tree format 4"
 
1245
 
 
1246
    def initialize(self, a_bzrdir, revision_id=None):
1377
1247
        """See WorkingTreeFormat.initialize().
1378
1248
 
1379
1249
        :param revision_id: allows creating a working tree at a different
1380
1250
        revision than the branch is at.
1381
 
        :param accelerator_tree: A tree which can be used for retrieving file
1382
 
            contents more quickly than the revision tree, i.e. a workingtree.
1383
 
            The revision tree will be used for cases where accelerator_tree's
1384
 
            content is different.
1385
 
        :param hardlink: If true, hard-link files from accelerator_tree,
1386
 
            where possible.
1387
1251
 
1388
1252
        These trees get an initial random root id, if their repository supports
1389
1253
        rich root data, TREE_ROOT otherwise.
1390
1254
        """
 
1255
        revision_id = osutils.safe_revision_id(revision_id)
1391
1256
        if not isinstance(a_bzrdir.transport, LocalTransport):
1392
1257
            raise errors.NotLocalUrl(a_bzrdir.transport.base)
1393
1258
        transport = a_bzrdir.get_workingtree_transport(self)
1394
1259
        control_files = self._open_control_files(a_bzrdir)
1395
1260
        control_files.create_lock()
1396
1261
        control_files.lock_write()
1397
 
        transport.put_bytes('format', self.get_format_string(),
1398
 
            mode=a_bzrdir._get_file_mode())
1399
 
        if from_branch is not None:
1400
 
            branch = from_branch
1401
 
        else:
1402
 
            branch = a_bzrdir.open_branch()
 
1262
        control_files.put_utf8('format', self.get_format_string())
 
1263
        branch = a_bzrdir.open_branch()
1403
1264
        if revision_id is None:
1404
1265
            revision_id = branch.last_revision()
1405
1266
        local_path = transport.local_abspath('dirstate')
1407
1268
        state = dirstate.DirState.initialize(local_path)
1408
1269
        state.unlock()
1409
1270
        del state
1410
 
        wt = self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
 
1271
        wt = WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1411
1272
                         branch,
1412
1273
                         _format=self,
1413
1274
                         _bzrdir=a_bzrdir,
1414
1275
                         _control_files=control_files)
1415
1276
        wt._new_tree()
1416
1277
        wt.lock_tree_write()
 
1278
        wt.current_dirstate()._validate()
1417
1279
        try:
1418
 
            self._init_custom_control_files(wt)
1419
 
            if revision_id in (None, _mod_revision.NULL_REVISION):
 
1280
            if revision_id in (None, NULL_REVISION):
1420
1281
                if branch.repository.supports_rich_root():
1421
1282
                    wt._set_root_id(generate_ids.gen_root_id())
1422
1283
                else:
1423
1284
                    wt._set_root_id(ROOT_ID)
1424
1285
                wt.flush()
1425
 
            basis = None
1426
 
            # frequently, we will get here due to branching.  The accelerator
1427
 
            # tree will be the tree from the branch, so the desired basis
1428
 
            # tree will often be a parent of the accelerator tree.
1429
 
            if accelerator_tree is not None:
1430
 
                try:
1431
 
                    basis = accelerator_tree.revision_tree(revision_id)
1432
 
                except errors.NoSuchRevision:
1433
 
                    pass
1434
 
            if basis is None:
1435
 
                basis = branch.repository.revision_tree(revision_id)
1436
 
            if revision_id == _mod_revision.NULL_REVISION:
1437
 
                parents_list = []
1438
 
            else:
1439
 
                parents_list = [(revision_id, basis)]
 
1286
                wt.current_dirstate()._validate()
 
1287
            wt.set_last_revision(revision_id)
 
1288
            wt.flush()
 
1289
            basis = wt.basis_tree()
1440
1290
            basis.lock_read()
1441
 
            try:
1442
 
                wt.set_parent_trees(parents_list, allow_leftmost_as_ghost=True)
 
1291
            # if the basis has a root id we have to use that; otherwise we use
 
1292
            # a new random one
 
1293
            basis_root_id = basis.get_root_id()
 
1294
            if basis_root_id is not None:
 
1295
                wt._set_root_id(basis_root_id)
1443
1296
                wt.flush()
1444
 
                # if the basis has a root id we have to use that; otherwise we
1445
 
                # use a new random one
1446
 
                basis_root_id = basis.get_root_id()
1447
 
                if basis_root_id is not None:
1448
 
                    wt._set_root_id(basis_root_id)
1449
 
                    wt.flush()
1450
 
                if wt.supports_content_filtering():
1451
 
                    # The original tree may not have the same content filters
1452
 
                    # applied so we can't safely build the inventory delta from
1453
 
                    # the source tree.
1454
 
                    delta_from_tree = False
1455
 
                else:
1456
 
                    delta_from_tree = True
1457
 
                # delta_from_tree is safe even for DirStateRevisionTrees,
1458
 
                # because wt4.apply_inventory_delta does not mutate the input
1459
 
                # inventory entries.
1460
 
                transform.build_tree(basis, wt, accelerator_tree,
1461
 
                                     hardlink=hardlink,
1462
 
                                     delta_from_tree=delta_from_tree)
1463
 
            finally:
1464
 
                basis.unlock()
 
1297
            transform.build_tree(basis, wt)
 
1298
            basis.unlock()
1465
1299
        finally:
1466
1300
            control_files.unlock()
1467
1301
            wt.unlock()
1468
1302
        return wt
1469
1303
 
1470
 
    def _init_custom_control_files(self, wt):
1471
 
        """Subclasses with custom control files should override this method.
1472
 
 
1473
 
        The working tree and control files are locked for writing when this
1474
 
        method is called.
1475
 
 
1476
 
        :param wt: the WorkingTree object
1477
 
        """
1478
 
 
1479
1304
    def _open(self, a_bzrdir, control_files):
1480
1305
        """Open the tree itself.
1481
1306
 
1482
1307
        :param a_bzrdir: the dir for the tree.
1483
1308
        :param control_files: the control files for the tree.
1484
1309
        """
1485
 
        return self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
 
1310
        return WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1486
1311
                           branch=a_bzrdir.open_branch(),
1487
1312
                           _format=self,
1488
1313
                           _bzrdir=a_bzrdir,
1489
1314
                           _control_files=control_files)
1490
1315
 
1491
1316
    def __get_matchingbzrdir(self):
1492
 
        return self._get_matchingbzrdir()
1493
 
 
1494
 
    def _get_matchingbzrdir(self):
1495
 
        """Overrideable method to get a bzrdir for testing."""
1496
1317
        # please test against something that will let us do tree references
1497
1318
        return bzrdir.format_registry.make_bzrdir(
1498
1319
            'dirstate-with-subtree')
1500
1321
    _matchingbzrdir = property(__get_matchingbzrdir)
1501
1322
 
1502
1323
 
1503
 
class WorkingTreeFormat4(DirStateWorkingTreeFormat):
1504
 
    """The first consolidated dirstate working tree format.
1505
 
 
1506
 
    This format:
1507
 
        - exists within a metadir controlling .bzr
1508
 
        - includes an explicit version marker for the workingtree control
1509
 
          files, separate from the BzrDir format
1510
 
        - modifies the hash cache format
1511
 
        - is new in bzr 0.15
1512
 
        - uses a LockDir to guard access to it.
1513
 
    """
1514
 
 
1515
 
    upgrade_recommended = False
1516
 
 
1517
 
    _tree_class = WorkingTree4
1518
 
 
1519
 
    def get_format_string(self):
1520
 
        """See WorkingTreeFormat.get_format_string()."""
1521
 
        return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
1522
 
 
1523
 
    def get_format_description(self):
1524
 
        """See WorkingTreeFormat.get_format_description()."""
1525
 
        return "Working tree format 4"
1526
 
 
1527
 
 
1528
 
class WorkingTreeFormat5(DirStateWorkingTreeFormat):
1529
 
    """WorkingTree format supporting content filtering.
1530
 
    """
1531
 
 
1532
 
    upgrade_recommended = False
1533
 
 
1534
 
    _tree_class = WorkingTree5
1535
 
 
1536
 
    def get_format_string(self):
1537
 
        """See WorkingTreeFormat.get_format_string()."""
1538
 
        return "Bazaar Working Tree Format 5 (bzr 1.11)\n"
1539
 
 
1540
 
    def get_format_description(self):
1541
 
        """See WorkingTreeFormat.get_format_description()."""
1542
 
        return "Working tree format 5"
1543
 
 
1544
 
    def supports_content_filtering(self):
1545
 
        return True
1546
 
 
1547
 
 
1548
 
class WorkingTreeFormat6(DirStateWorkingTreeFormat):
1549
 
    """WorkingTree format supporting views.
1550
 
    """
1551
 
 
1552
 
    upgrade_recommended = False
1553
 
 
1554
 
    _tree_class = WorkingTree6
1555
 
 
1556
 
    def get_format_string(self):
1557
 
        """See WorkingTreeFormat.get_format_string()."""
1558
 
        return "Bazaar Working Tree Format 6 (bzr 1.14)\n"
1559
 
 
1560
 
    def get_format_description(self):
1561
 
        """See WorkingTreeFormat.get_format_description()."""
1562
 
        return "Working tree format 6"
1563
 
 
1564
 
    def _init_custom_control_files(self, wt):
1565
 
        """Subclasses with custom control files should override this method."""
1566
 
        wt._transport.put_bytes('views', '', mode=wt.bzrdir._get_file_mode())
1567
 
 
1568
 
    def supports_content_filtering(self):
1569
 
        return True
1570
 
 
1571
 
    def supports_views(self):
1572
 
        return True
1573
 
 
1574
 
 
1575
1324
class DirStateRevisionTree(Tree):
1576
 
    """A revision tree pulling the inventory from a dirstate.
1577
 
    
1578
 
    Note that this is one of the historical (ie revision) trees cached in the
1579
 
    dirstate for easy access, not the workingtree.
1580
 
    """
 
1325
    """A revision tree pulling the inventory from a dirstate."""
1581
1326
 
1582
1327
    def __init__(self, dirstate, revision_id, repository):
1583
1328
        self._dirstate = dirstate
1584
 
        self._revision_id = revision_id
 
1329
        self._revision_id = osutils.safe_revision_id(revision_id)
1585
1330
        self._repository = repository
1586
1331
        self._inventory = None
1587
1332
        self._locked = 0
1588
1333
        self._dirstate_locked = False
1589
 
        self._repo_supports_tree_reference = getattr(
1590
 
            repository._format, "supports_tree_reference",
1591
 
            False)
1592
1334
 
1593
1335
    def __repr__(self):
1594
1336
        return "<%s of %s in %s>" % \
1595
1337
            (self.__class__.__name__, self._revision_id, self._dirstate)
1596
1338
 
1597
 
    def annotate_iter(self, file_id,
1598
 
                      default_revision=_mod_revision.CURRENT_REVISION):
 
1339
    def annotate_iter(self, file_id):
1599
1340
        """See Tree.annotate_iter"""
1600
 
        text_key = (file_id, self.inventory[file_id].revision)
1601
 
        annotations = self._repository.texts.annotate(text_key)
1602
 
        return [(key[-1], line) for (key, line) in annotations]
 
1341
        w = self._repository.weave_store.get_weave(file_id,
 
1342
                           self._repository.get_transaction())
 
1343
        return w.annotate_iter(self.inventory[file_id].revision)
1603
1344
 
1604
 
    def _get_ancestors(self, default_revision):
1605
 
        return set(self._repository.get_ancestry(self._revision_id,
1606
 
                                                 topo_sorted=False))
1607
1345
    def _comparison_data(self, entry, path):
1608
1346
        """See Tree._comparison_data."""
1609
1347
        if entry is None:
1626
1364
    def get_root_id(self):
1627
1365
        return self.path2id('')
1628
1366
 
1629
 
    def id2path(self, file_id):
1630
 
        "Convert a file-id to a path."
1631
 
        entry = self._get_entry(file_id=file_id)
1632
 
        if entry == (None, None):
1633
 
            raise errors.NoSuchId(tree=self, file_id=file_id)
1634
 
        path_utf8 = osutils.pathjoin(entry[0][0], entry[0][1])
1635
 
        return path_utf8.decode('utf8')
1636
 
 
1637
 
    def iter_references(self):
1638
 
        if not self._repo_supports_tree_reference:
1639
 
            # When the repo doesn't support references, we will have nothing to
1640
 
            # return
1641
 
            return iter([])
1642
 
        # Otherwise, fall back to the default implementation
1643
 
        return super(DirStateRevisionTree, self).iter_references()
1644
 
 
1645
1367
    def _get_parent_index(self):
1646
1368
        """Return the index in the dirstate referenced by this tree."""
1647
1369
        return self._dirstate.get_parent_ids().index(self._revision_id) + 1
1652
1374
        If either file_id or path is supplied, it is used as the key to lookup.
1653
1375
        If both are supplied, the fastest lookup is used, and an error is
1654
1376
        raised if they do not both point at the same row.
1655
 
 
 
1377
        
1656
1378
        :param file_id: An optional unicode file_id to be looked up.
1657
1379
        :param path: An optional unicode path to be looked up.
1658
1380
        :return: The dirstate row tuple for path/file_id, or (None, None)
1659
1381
        """
1660
1382
        if file_id is None and path is None:
1661
1383
            raise errors.BzrError('must supply file_id or path')
 
1384
        file_id = osutils.safe_file_id(file_id)
1662
1385
        if path is not None:
1663
1386
            path = path.encode('utf8')
1664
1387
        parent_index = self._get_parent_index()
1672
1395
 
1673
1396
        This is relatively expensive: we have to walk the entire dirstate.
1674
1397
        """
1675
 
        if not self._locked:
1676
 
            raise AssertionError(
1677
 
                'cannot generate inventory of an unlocked '
1678
 
                'dirstate revision tree')
 
1398
        assert self._locked, 'cannot generate inventory of an unlocked '\
 
1399
            'dirstate revision tree'
1679
1400
        # separate call for profiling - makes it clear where the costs are.
1680
1401
        self._dirstate._read_dirblocks_if_needed()
1681
 
        if self._revision_id not in self._dirstate.get_parent_ids():
1682
 
            raise AssertionError(
1683
 
                'parent %s has disappeared from %s' % (
1684
 
                self._revision_id, self._dirstate.get_parent_ids()))
 
1402
        assert self._revision_id in self._dirstate.get_parent_ids(), \
 
1403
            'parent %s has disappeared from %s' % (
 
1404
            self._revision_id, self._dirstate.get_parent_ids())
1685
1405
        parent_index = self._dirstate.get_parent_ids().index(self._revision_id) + 1
1686
1406
        # This is identical now to the WorkingTree _generate_inventory except
1687
1407
        # for the tree index use.
1688
1408
        root_key, current_entry = self._dirstate._get_entry(parent_index, path_utf8='')
1689
1409
        current_id = root_key[2]
1690
 
        if current_entry[parent_index][0] != 'd':
1691
 
            raise AssertionError()
 
1410
        assert current_entry[parent_index][0] == 'd'
1692
1411
        inv = Inventory(root_id=current_id, revision_id=self._revision_id)
1693
1412
        inv.root.revision = current_entry[parent_index][4]
1694
1413
        # Turn some things into local variables
1734
1453
                    raise AssertionError("cannot convert entry %r into an InventoryEntry"
1735
1454
                            % entry)
1736
1455
                # These checks cost us around 40ms on a 55k entry tree
1737
 
                if file_id in inv_byid:
1738
 
                    raise AssertionError('file_id %s already in'
1739
 
                        ' inventory as %s' % (file_id, inv_byid[file_id]))
1740
 
                if name_unicode in parent_ie.children:
1741
 
                    raise AssertionError('name %r already in parent'
1742
 
                        % (name_unicode,))
 
1456
                assert file_id not in inv_byid
 
1457
                assert name_unicode not in parent_ie.children
1743
1458
                inv_byid[file_id] = inv_entry
1744
1459
                parent_ie.children[name_unicode] = inv_entry
1745
1460
        self._inventory = inv
1755
1470
            return None
1756
1471
        parent_index = self._get_parent_index()
1757
1472
        last_changed_revision = entry[1][parent_index][4]
1758
 
        try:
1759
 
            rev = self._repository.get_revision(last_changed_revision)
1760
 
        except errors.NoSuchRevision:
1761
 
            raise errors.FileTimestampUnavailable(self.id2path(file_id))
1762
 
        return rev.timestamp
 
1473
        return self._repository.get_revision(last_changed_revision).timestamp
1763
1474
 
1764
1475
    def get_file_sha1(self, file_id, path=None, stat_value=None):
1765
1476
        entry = self._get_entry(file_id=file_id, path=path)
1769
1480
            return parent_details[1]
1770
1481
        return None
1771
1482
 
1772
 
    def get_file(self, file_id, path=None):
 
1483
    def get_file(self, file_id):
1773
1484
        return StringIO(self.get_file_text(file_id))
1774
1485
 
 
1486
    def get_file_lines(self, file_id):
 
1487
        ie = self.inventory[file_id]
 
1488
        return self._repository.weave_store.get_weave(file_id,
 
1489
                self._repository.get_transaction()).get_lines(ie.revision)
 
1490
 
1775
1491
    def get_file_size(self, file_id):
1776
 
        """See Tree.get_file_size"""
1777
1492
        return self.inventory[file_id].text_size
1778
1493
 
1779
 
    def get_file_text(self, file_id, path=None):
1780
 
        _, content = list(self.iter_files_bytes([(file_id, None)]))[0]
1781
 
        return ''.join(content)
 
1494
    def get_file_text(self, file_id):
 
1495
        return ''.join(self.get_file_lines(file_id))
1782
1496
 
1783
1497
    def get_reference_revision(self, file_id, path=None):
1784
1498
        return self.inventory[file_id].reference_revision
1785
1499
 
1786
 
    def iter_files_bytes(self, desired_files):
1787
 
        """See Tree.iter_files_bytes.
1788
 
 
1789
 
        This version is implemented on top of Repository.iter_files_bytes"""
1790
 
        parent_index = self._get_parent_index()
1791
 
        repo_desired_files = []
1792
 
        for file_id, identifier in desired_files:
1793
 
            entry = self._get_entry(file_id)
1794
 
            if entry == (None, None):
1795
 
                raise errors.NoSuchId(self, file_id)
1796
 
            repo_desired_files.append((file_id, entry[1][parent_index][4],
1797
 
                                       identifier))
1798
 
        return self._repository.iter_files_bytes(repo_desired_files)
1799
 
 
1800
1500
    def get_symlink_target(self, file_id):
1801
1501
        entry = self._get_entry(file_id=file_id)
1802
1502
        parent_index = self._get_parent_index()
1803
1503
        if entry[1][parent_index][0] != 'l':
1804
1504
            return None
1805
1505
        else:
1806
 
            target = entry[1][parent_index][1]
1807
 
            target = target.decode('utf8')
1808
 
            return target
 
1506
            # At present, none of the tree implementations supports non-ascii
 
1507
            # symlink targets. So we will just assume that the dirstate path is
 
1508
            # correct.
 
1509
            return entry[1][parent_index][1]
1809
1510
 
1810
1511
    def get_revision_id(self):
1811
1512
        """Return the revision id for this tree."""
1829
1530
        return bool(self.path2id(filename))
1830
1531
 
1831
1532
    def kind(self, file_id):
1832
 
        entry = self._get_entry(file_id=file_id)[1]
1833
 
        if entry is None:
1834
 
            raise errors.NoSuchId(tree=self, file_id=file_id)
1835
 
        parent_index = self._get_parent_index()
1836
 
        return dirstate.DirState._minikind_to_kind[entry[parent_index][0]]
1837
 
 
1838
 
    def stored_kind(self, file_id):
1839
 
        """See Tree.stored_kind"""
1840
 
        return self.kind(file_id)
1841
 
 
1842
 
    def path_content_summary(self, path):
1843
 
        """See Tree.path_content_summary."""
1844
 
        id = self.inventory.path2id(path)
1845
 
        if id is None:
1846
 
            return ('missing', None, None, None)
1847
 
        entry = self._inventory[id]
1848
 
        kind = entry.kind
1849
 
        if kind == 'file':
1850
 
            return (kind, entry.text_size, entry.executable, entry.text_sha1)
1851
 
        elif kind == 'symlink':
1852
 
            return (kind, None, None, entry.symlink_target)
1853
 
        else:
1854
 
            return (kind, None, None, None)
 
1533
        return self.inventory[file_id].kind
1855
1534
 
1856
1535
    def is_executable(self, file_id, path=None):
1857
1536
        ie = self.inventory[file_id]
1859
1538
            return None
1860
1539
        return ie.executable
1861
1540
 
1862
 
    def list_files(self, include_root=False, from_dir=None, recursive=True):
 
1541
    def list_files(self, include_root=False):
1863
1542
        # We use a standard implementation, because DirStateRevisionTree is
1864
1543
        # dealing with one of the parents of the current state
1865
1544
        inv = self._get_inventory()
1866
 
        if from_dir is None:
1867
 
            from_dir_id = None
1868
 
        else:
1869
 
            from_dir_id = inv.path2id(from_dir)
1870
 
            if from_dir_id is None:
1871
 
                # Directory not versioned
1872
 
                return
1873
 
        entries = inv.iter_entries(from_dir=from_dir_id, recursive=recursive)
1874
 
        if inv.root is not None and not include_root and from_dir is None:
 
1545
        entries = inv.iter_entries()
 
1546
        if self.inventory.root is not None and not include_root:
1875
1547
            entries.next()
1876
1548
        for path, entry in entries:
1877
1549
            yield path, 'V', entry.kind, entry.file_id, entry
1910
1582
                self._dirstate_locked = False
1911
1583
            self._repository.unlock()
1912
1584
 
1913
 
    @needs_read_lock
1914
 
    def supports_tree_reference(self):
1915
 
        return self._repo_supports_tree_reference
1916
 
 
1917
1585
    def walkdirs(self, prefix=""):
1918
1586
        # TODO: jam 20070215 This is the lazy way by using the RevisionTree
1919
 
        # implementation based on an inventory.
 
1587
        # implementation based on an inventory.  
1920
1588
        # This should be cleaned up to use the much faster Dirstate code
1921
1589
        # So for now, we just build up the parent inventory, and extract
1922
1590
        # it the same way RevisionTree does.
1951
1619
 
1952
1620
class InterDirStateTree(InterTree):
1953
1621
    """Fast path optimiser for changes_from with dirstate trees.
1954
 
 
1955
 
    This is used only when both trees are in the dirstate working file, and
1956
 
    the source is any parent within the dirstate, and the destination is
 
1622
    
 
1623
    This is used only when both trees are in the dirstate working file, and 
 
1624
    the source is any parent within the dirstate, and the destination is 
1957
1625
    the current working tree of the same dirstate.
1958
1626
    """
1959
1627
    # this could be generalized to allow comparisons between any trees in the
1972
1640
        target.set_parent_ids([revid])
1973
1641
        return target.basis_tree(), target
1974
1642
 
1975
 
    @classmethod
1976
 
    def make_source_parent_tree_python_dirstate(klass, test_case, source, target):
1977
 
        result = klass.make_source_parent_tree(source, target)
1978
 
        result[1]._iter_changes = dirstate.ProcessEntryPython
1979
 
        return result
1980
 
 
1981
 
    @classmethod
1982
 
    def make_source_parent_tree_compiled_dirstate(klass, test_case, source,
1983
 
                                                  target):
1984
 
        from bzrlib.tests.test__dirstate_helpers import \
1985
 
            compiled_dirstate_helpers_feature
1986
 
        test_case.requireFeature(compiled_dirstate_helpers_feature)
1987
 
        from bzrlib._dirstate_helpers_pyx import ProcessEntryC
1988
 
        result = klass.make_source_parent_tree(source, target)
1989
 
        result[1]._iter_changes = ProcessEntryC
1990
 
        return result
1991
 
 
1992
1643
    _matching_from_tree_format = WorkingTreeFormat4()
1993
1644
    _matching_to_tree_format = WorkingTreeFormat4()
1994
 
 
1995
 
    @classmethod
1996
 
    def _test_mutable_trees_to_test_trees(klass, test_case, source, target):
1997
 
        # This method shouldn't be called, because we have python and C
1998
 
        # specific flavours.
1999
 
        raise NotImplementedError
2000
 
 
2001
 
    def iter_changes(self, include_unchanged=False,
 
1645
    _test_mutable_trees_to_test_trees = make_source_parent_tree
 
1646
 
 
1647
    def _iter_changes(self, include_unchanged=False,
2002
1648
                      specific_files=None, pb=None, extra_trees=[],
2003
1649
                      require_versioned=True, want_unversioned=False):
2004
1650
        """Return the changes from source to target.
2005
1651
 
2006
 
        :return: An iterator that yields tuples. See InterTree.iter_changes
 
1652
        :return: An iterator that yields tuples. See InterTree._iter_changes
2007
1653
            for details.
2008
1654
        :param specific_files: An optional list of file paths to restrict the
2009
1655
            comparison to. When mapping filenames to ids, all matches in all
2020
1666
            output. An unversioned file is defined as one with (False, False)
2021
1667
            for the versioned pair.
2022
1668
        """
 
1669
        utf8_decode_or_none = cache_utf8._utf8_decode_with_None
 
1670
        _minikind_to_kind = dirstate.DirState._minikind_to_kind
 
1671
        # NB: show_status depends on being able to pass in non-versioned files
 
1672
        # and report them as unknown
2023
1673
        # TODO: handle extra trees in the dirstate.
2024
 
        if (extra_trees or specific_files == []):
 
1674
        # TODO: handle comparisons as an empty tree as a different special
 
1675
        # case? mbp 20070226
 
1676
        if extra_trees or (self.source._revision_id == NULL_REVISION):
2025
1677
            # we can't fast-path these cases (yet)
2026
 
            return super(InterDirStateTree, self).iter_changes(
 
1678
            for f in super(InterDirStateTree, self)._iter_changes(
2027
1679
                include_unchanged, specific_files, pb, extra_trees,
2028
 
                require_versioned, want_unversioned=want_unversioned)
 
1680
                require_versioned, want_unversioned=want_unversioned):
 
1681
                yield f
 
1682
            return
2029
1683
        parent_ids = self.target.get_parent_ids()
2030
 
        if not (self.source._revision_id in parent_ids
2031
 
                or self.source._revision_id == _mod_revision.NULL_REVISION):
2032
 
            raise AssertionError(
2033
 
                "revision {%s} is not stored in {%s}, but %s "
2034
 
                "can only be used for trees stored in the dirstate"
2035
 
                % (self.source._revision_id, self.target, self.iter_changes))
 
1684
        assert (self.source._revision_id in parent_ids), \
 
1685
                "revision {%s} is not stored in {%s}, but %s " \
 
1686
                "can only be used for trees stored in the dirstate" \
 
1687
                % (self.source._revision_id, self.target, self._iter_changes)
2036
1688
        target_index = 0
2037
 
        if self.source._revision_id == _mod_revision.NULL_REVISION:
 
1689
        if self.source._revision_id == NULL_REVISION:
2038
1690
            source_index = None
2039
1691
            indices = (target_index,)
2040
1692
        else:
2041
 
            if not (self.source._revision_id in parent_ids):
2042
 
                raise AssertionError(
2043
 
                    "Failure: source._revision_id: %s not in target.parent_ids(%s)" % (
2044
 
                    self.source._revision_id, parent_ids))
 
1693
            assert (self.source._revision_id in parent_ids), \
 
1694
                "Failure: source._revision_id: %s not in target.parent_ids(%s)" % (
 
1695
                self.source._revision_id, parent_ids)
2045
1696
            source_index = 1 + parent_ids.index(self.source._revision_id)
2046
 
            indices = (source_index, target_index)
 
1697
            indices = (source_index,target_index)
2047
1698
        # -- make all specific_files utf8 --
2048
1699
        if specific_files:
2049
1700
            specific_files_utf8 = set()
2050
1701
            for path in specific_files:
2051
 
                # Note, if there are many specific files, using cache_utf8
2052
 
                # would be good here.
2053
1702
                specific_files_utf8.add(path.encode('utf8'))
2054
1703
            specific_files = specific_files_utf8
2055
1704
        else:
2056
1705
            specific_files = set([''])
2057
1706
        # -- specific_files is now a utf8 path set --
2058
 
 
2059
1707
        # -- get the state object and prepare it.
2060
1708
        state = self.target.current_dirstate()
2061
1709
        state._read_dirblocks_if_needed()
 
1710
        def _entries_for_path(path):
 
1711
            """Return a list with all the entries that match path for all ids.
 
1712
            """
 
1713
            dirname, basename = os.path.split(path)
 
1714
            key = (dirname, basename, '')
 
1715
            block_index, present = state._find_block_index_from_key(key)
 
1716
            if not present:
 
1717
                # the block which should contain path is absent.
 
1718
                return []
 
1719
            result = []
 
1720
            block = state._dirblocks[block_index][1]
 
1721
            entry_index, _ = state._find_entry_index(key, block)
 
1722
            # we may need to look at multiple entries at this path: walk while the specific_files match.
 
1723
            while (entry_index < len(block) and
 
1724
                block[entry_index][0][0:2] == key[0:2]):
 
1725
                result.append(block[entry_index])
 
1726
                entry_index += 1
 
1727
            return result
2062
1728
        if require_versioned:
2063
1729
            # -- check all supplied paths are versioned in a search tree. --
2064
 
            not_versioned = []
 
1730
            all_versioned = True
2065
1731
            for path in specific_files:
2066
 
                path_entries = state._entries_for_path(path)
 
1732
                path_entries = _entries_for_path(path)
2067
1733
                if not path_entries:
2068
1734
                    # this specified path is not present at all: error
2069
 
                    not_versioned.append(path)
2070
 
                    continue
 
1735
                    all_versioned = False
 
1736
                    break
2071
1737
                found_versioned = False
2072
1738
                # for each id at this path
2073
1739
                for entry in path_entries:
2080
1746
                if not found_versioned:
2081
1747
                    # none of the indexes was not 'absent' at all ids for this
2082
1748
                    # path.
2083
 
                    not_versioned.append(path)
2084
 
            if len(not_versioned) > 0:
2085
 
                raise errors.PathsNotVersionedError(not_versioned)
 
1749
                    all_versioned = False
 
1750
                    break
 
1751
            if not all_versioned:
 
1752
                raise errors.PathsNotVersionedError(specific_files)
2086
1753
        # -- remove redundancy in supplied specific_files to prevent over-scanning --
2087
 
        search_specific_files = osutils.minimum_path_selection(specific_files)
 
1754
        search_specific_files = set()
 
1755
        for path in specific_files:
 
1756
            other_specific_files = specific_files.difference(set([path]))
 
1757
            if not osutils.is_inside_any(other_specific_files, path):
 
1758
                # this is a top level path, we must check it.
 
1759
                search_specific_files.add(path)
 
1760
        # sketch: 
 
1761
        # compare source_index and target_index at or under each element of search_specific_files.
 
1762
        # follow the following comparison table. Note that we only want to do diff operations when
 
1763
        # the target is fdl because thats when the walkdirs logic will have exposed the pathinfo 
 
1764
        # for the target.
 
1765
        # cases:
 
1766
        # 
 
1767
        # Source | Target | disk | action
 
1768
        #   r    | fdlt   |      | add source to search, add id path move and perform
 
1769
        #        |        |      | diff check on source-target
 
1770
        #   r    | fdlt   |  a   | dangling file that was present in the basis. 
 
1771
        #        |        |      | ???
 
1772
        #   r    |  a     |      | add source to search
 
1773
        #   r    |  a     |  a   | 
 
1774
        #   r    |  r     |      | this path is present in a non-examined tree, skip.
 
1775
        #   r    |  r     |  a   | this path is present in a non-examined tree, skip.
 
1776
        #   a    | fdlt   |      | add new id
 
1777
        #   a    | fdlt   |  a   | dangling locally added file, skip
 
1778
        #   a    |  a     |      | not present in either tree, skip
 
1779
        #   a    |  a     |  a   | not present in any tree, skip
 
1780
        #   a    |  r     |      | not present in either tree at this path, skip as it
 
1781
        #        |        |      | may not be selected by the users list of paths.
 
1782
        #   a    |  r     |  a   | not present in either tree at this path, skip as it
 
1783
        #        |        |      | may not be selected by the users list of paths.
 
1784
        #  fdlt  | fdlt   |      | content in both: diff them
 
1785
        #  fdlt  | fdlt   |  a   | deleted locally, but not unversioned - show as deleted ?
 
1786
        #  fdlt  |  a     |      | unversioned: output deleted id for now
 
1787
        #  fdlt  |  a     |  a   | unversioned and deleted: output deleted id
 
1788
        #  fdlt  |  r     |      | relocated in this tree, so add target to search.
 
1789
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
 
1790
        #        |        |      | this id at the other path.
 
1791
        #  fdlt  |  r     |  a   | relocated in this tree, so add target to search.
 
1792
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
 
1793
        #        |        |      | this id at the other path.
 
1794
 
 
1795
        # for all search_indexs in each path at or under each element of
 
1796
        # search_specific_files, if the detail is relocated: add the id, and add the
 
1797
        # relocated path as one to search if its not searched already. If the
 
1798
        # detail is not relocated, add the id.
 
1799
        searched_specific_files = set()
 
1800
        NULL_PARENT_DETAILS = dirstate.DirState.NULL_PARENT_DETAILS
 
1801
        # Using a list so that we can access the values and change them in
 
1802
        # nested scope. Each one is [path, file_id, entry]
 
1803
        last_source_parent = [None, None, None]
 
1804
        last_target_parent = [None, None, None]
2088
1805
 
2089
1806
        use_filesystem_for_exec = (sys.platform != 'win32')
2090
 
        iter_changes = self.target._iter_changes(include_unchanged,
2091
 
            use_filesystem_for_exec, search_specific_files, state,
2092
 
            source_index, target_index, want_unversioned, self.target)
2093
 
        return iter_changes.iter_changes()
 
1807
 
 
1808
        def _process_entry(entry, path_info):
 
1809
            """Compare an entry and real disk to generate delta information.
 
1810
 
 
1811
            :param path_info: top_relpath, basename, kind, lstat, abspath for
 
1812
                the path of entry. If None, then the path is considered absent.
 
1813
                (Perhaps we should pass in a concrete entry for this ?)
 
1814
                Basename is returned as a utf8 string because we expect this
 
1815
                tuple will be ignored, and don't want to take the time to
 
1816
                decode.
 
1817
            """
 
1818
            if source_index is None:
 
1819
                source_details = NULL_PARENT_DETAILS
 
1820
            else:
 
1821
                source_details = entry[1][source_index]
 
1822
            target_details = entry[1][target_index]
 
1823
            target_minikind = target_details[0]
 
1824
            if path_info is not None and target_minikind in 'fdlt':
 
1825
                assert target_index == 0
 
1826
                link_or_sha1 = state.update_entry(entry, abspath=path_info[4],
 
1827
                                                  stat_value=path_info[3])
 
1828
                # The entry may have been modified by update_entry
 
1829
                target_details = entry[1][target_index]
 
1830
                target_minikind = target_details[0]
 
1831
            else:
 
1832
                link_or_sha1 = None
 
1833
            source_minikind = source_details[0]
 
1834
            if source_minikind in 'fdltr' and target_minikind in 'fdlt':
 
1835
                # claimed content in both: diff
 
1836
                #   r    | fdlt   |      | add source to search, add id path move and perform
 
1837
                #        |        |      | diff check on source-target
 
1838
                #   r    | fdlt   |  a   | dangling file that was present in the basis.
 
1839
                #        |        |      | ???
 
1840
                if source_minikind in 'r':
 
1841
                    # add the source to the search path to find any children it
 
1842
                    # has.  TODO ? : only add if it is a container ?
 
1843
                    if not osutils.is_inside_any(searched_specific_files,
 
1844
                                                 source_details[1]):
 
1845
                        search_specific_files.add(source_details[1])
 
1846
                    # generate the old path; this is needed for stating later
 
1847
                    # as well.
 
1848
                    old_path = source_details[1]
 
1849
                    old_dirname, old_basename = os.path.split(old_path)
 
1850
                    path = pathjoin(entry[0][0], entry[0][1])
 
1851
                    old_entry = state._get_entry(source_index,
 
1852
                                                 path_utf8=old_path)
 
1853
                    # update the source details variable to be the real
 
1854
                    # location.
 
1855
                    source_details = old_entry[1][source_index]
 
1856
                    source_minikind = source_details[0]
 
1857
                else:
 
1858
                    old_dirname = entry[0][0]
 
1859
                    old_basename = entry[0][1]
 
1860
                    old_path = path = pathjoin(old_dirname, old_basename)
 
1861
                if path_info is None:
 
1862
                    # the file is missing on disk, show as removed.
 
1863
                    content_change = True
 
1864
                    target_kind = None
 
1865
                    target_exec = False
 
1866
                else:
 
1867
                    # source and target are both versioned and disk file is present.
 
1868
                    target_kind = path_info[2]
 
1869
                    if target_kind == 'directory':
 
1870
                        if source_minikind != 'd':
 
1871
                            content_change = True
 
1872
                        else:
 
1873
                            # directories have no fingerprint
 
1874
                            content_change = False
 
1875
                        target_exec = False
 
1876
                    elif target_kind == 'file':
 
1877
                        if source_minikind != 'f':
 
1878
                            content_change = True
 
1879
                        else:
 
1880
                            # We could check the size, but we already have the
 
1881
                            # sha1 hash.
 
1882
                            content_change = (link_or_sha1 != source_details[1])
 
1883
                        # Target details is updated at update_entry time
 
1884
                        if use_filesystem_for_exec:
 
1885
                            # We don't need S_ISREG here, because we are sure
 
1886
                            # we are dealing with a file.
 
1887
                            target_exec = bool(stat.S_IEXEC & path_info[3].st_mode)
 
1888
                        else:
 
1889
                            target_exec = target_details[3]
 
1890
                    elif target_kind == 'symlink':
 
1891
                        if source_minikind != 'l':
 
1892
                            content_change = True
 
1893
                        else:
 
1894
                            content_change = (link_or_sha1 != source_details[1])
 
1895
                        target_exec = False
 
1896
                    elif target_kind == 'tree-reference':
 
1897
                        if source_minikind != 't':
 
1898
                            content_change = True
 
1899
                        else:
 
1900
                            content_change = False
 
1901
                        target_exec = False
 
1902
                    else:
 
1903
                        raise Exception, "unknown kind %s" % path_info[2]
 
1904
                # parent id is the entry for the path in the target tree
 
1905
                if old_dirname == last_source_parent[0]:
 
1906
                    source_parent_id = last_source_parent[1]
 
1907
                else:
 
1908
                    source_parent_entry = state._get_entry(source_index,
 
1909
                                                           path_utf8=old_dirname)
 
1910
                    source_parent_id = source_parent_entry[0][2]
 
1911
                    if source_parent_id == entry[0][2]:
 
1912
                        # This is the root, so the parent is None
 
1913
                        source_parent_id = None
 
1914
                    else:
 
1915
                        last_source_parent[0] = old_dirname
 
1916
                        last_source_parent[1] = source_parent_id
 
1917
                        last_source_parent[2] = source_parent_entry
 
1918
                new_dirname = entry[0][0]
 
1919
                if new_dirname == last_target_parent[0]:
 
1920
                    target_parent_id = last_target_parent[1]
 
1921
                else:
 
1922
                    # TODO: We don't always need to do the lookup, because the
 
1923
                    #       parent entry will be the same as the source entry.
 
1924
                    target_parent_entry = state._get_entry(target_index,
 
1925
                                                           path_utf8=new_dirname)
 
1926
                    assert target_parent_entry != (None, None), (
 
1927
                        "Could not find target parent in wt: %s\nparent of: %s"
 
1928
                        % (new_dirname, entry))
 
1929
                    target_parent_id = target_parent_entry[0][2]
 
1930
                    if target_parent_id == entry[0][2]:
 
1931
                        # This is the root, so the parent is None
 
1932
                        target_parent_id = None
 
1933
                    else:
 
1934
                        last_target_parent[0] = new_dirname
 
1935
                        last_target_parent[1] = target_parent_id
 
1936
                        last_target_parent[2] = target_parent_entry
 
1937
 
 
1938
                source_exec = source_details[3]
 
1939
                return ((entry[0][2], (old_path, path), content_change,
 
1940
                        (True, True),
 
1941
                        (source_parent_id, target_parent_id),
 
1942
                        (old_basename, entry[0][1]),
 
1943
                        (_minikind_to_kind[source_minikind], target_kind),
 
1944
                        (source_exec, target_exec)),)
 
1945
            elif source_minikind in 'a' and target_minikind in 'fdlt':
 
1946
                # looks like a new file
 
1947
                if path_info is not None:
 
1948
                    path = pathjoin(entry[0][0], entry[0][1])
 
1949
                    # parent id is the entry for the path in the target tree
 
1950
                    # TODO: these are the same for an entire directory: cache em.
 
1951
                    parent_id = state._get_entry(target_index,
 
1952
                                                 path_utf8=entry[0][0])[0][2]
 
1953
                    if parent_id == entry[0][2]:
 
1954
                        parent_id = None
 
1955
                    if use_filesystem_for_exec:
 
1956
                        # We need S_ISREG here, because we aren't sure if this
 
1957
                        # is a file or not.
 
1958
                        target_exec = bool(
 
1959
                            stat.S_ISREG(path_info[3].st_mode)
 
1960
                            and stat.S_IEXEC & path_info[3].st_mode)
 
1961
                    else:
 
1962
                        target_exec = target_details[3]
 
1963
                    return ((entry[0][2], (None, path), True,
 
1964
                            (False, True),
 
1965
                            (None, parent_id),
 
1966
                            (None, entry[0][1]),
 
1967
                            (None, path_info[2]),
 
1968
                            (None, target_exec)),)
 
1969
                else:
 
1970
                    # but its not on disk: we deliberately treat this as just
 
1971
                    # never-present. (Why ?! - RBC 20070224)
 
1972
                    pass
 
1973
            elif source_minikind in 'fdlt' and target_minikind in 'a':
 
1974
                # unversioned, possibly, or possibly not deleted: we dont care.
 
1975
                # if its still on disk, *and* theres no other entry at this
 
1976
                # path [we dont know this in this routine at the moment -
 
1977
                # perhaps we should change this - then it would be an unknown.
 
1978
                old_path = pathjoin(entry[0][0], entry[0][1])
 
1979
                # parent id is the entry for the path in the target tree
 
1980
                parent_id = state._get_entry(source_index, path_utf8=entry[0][0])[0][2]
 
1981
                if parent_id == entry[0][2]:
 
1982
                    parent_id = None
 
1983
                return ((entry[0][2], (old_path, None), True,
 
1984
                        (True, False),
 
1985
                        (parent_id, None),
 
1986
                        (entry[0][1], None),
 
1987
                        (_minikind_to_kind[source_minikind], None),
 
1988
                        (source_details[3], None)),)
 
1989
            elif source_minikind in 'fdlt' and target_minikind in 'r':
 
1990
                # a rename; could be a true rename, or a rename inherited from
 
1991
                # a renamed parent. TODO: handle this efficiently. Its not
 
1992
                # common case to rename dirs though, so a correct but slow
 
1993
                # implementation will do.
 
1994
                if not osutils.is_inside_any(searched_specific_files, target_details[1]):
 
1995
                    search_specific_files.add(target_details[1])
 
1996
            elif source_minikind in 'ra' and target_minikind in 'ra':
 
1997
                # neither of the selected trees contain this file,
 
1998
                # so skip over it. This is not currently directly tested, but
 
1999
                # is indirectly via test_too_much.TestCommands.test_conflicts.
 
2000
                pass
 
2001
            else:
 
2002
                raise AssertionError("don't know how to compare "
 
2003
                    "source_minikind=%r, target_minikind=%r"
 
2004
                    % (source_minikind, target_minikind))
 
2005
                ## import pdb;pdb.set_trace()
 
2006
            return ()
 
2007
 
 
2008
        while search_specific_files:
 
2009
            # TODO: the pending list should be lexically sorted?  the
 
2010
            # interface doesn't require it.
 
2011
            current_root = search_specific_files.pop()
 
2012
            current_root_unicode = current_root.decode('utf8')
 
2013
            searched_specific_files.add(current_root)
 
2014
            # process the entries for this containing directory: the rest will be
 
2015
            # found by their parents recursively.
 
2016
            root_entries = _entries_for_path(current_root)
 
2017
            root_abspath = self.target.abspath(current_root_unicode)
 
2018
            try:
 
2019
                root_stat = os.lstat(root_abspath)
 
2020
            except OSError, e:
 
2021
                if e.errno == errno.ENOENT:
 
2022
                    # the path does not exist: let _process_entry know that.
 
2023
                    root_dir_info = None
 
2024
                else:
 
2025
                    # some other random error: hand it up.
 
2026
                    raise
 
2027
            else:
 
2028
                root_dir_info = ('', current_root,
 
2029
                    osutils.file_kind_from_stat_mode(root_stat.st_mode), root_stat,
 
2030
                    root_abspath)
 
2031
                if root_dir_info[2] == 'directory':
 
2032
                    if self.target._directory_is_tree_reference(
 
2033
                        current_root.decode('utf8')):
 
2034
                        root_dir_info = root_dir_info[:2] + \
 
2035
                            ('tree-reference',) + root_dir_info[3:]
 
2036
 
 
2037
            if not root_entries and not root_dir_info:
 
2038
                # this specified path is not present at all, skip it.
 
2039
                continue
 
2040
            path_handled = False
 
2041
            for entry in root_entries:
 
2042
                for result in _process_entry(entry, root_dir_info):
 
2043
                    # this check should probably be outside the loop: one
 
2044
                    # 'iterate two trees' api, and then _iter_changes filters
 
2045
                    # unchanged pairs. - RBC 20070226
 
2046
                    path_handled = True
 
2047
                    if (include_unchanged
 
2048
                        or result[2]                    # content change
 
2049
                        or result[3][0] != result[3][1] # versioned status
 
2050
                        or result[4][0] != result[4][1] # parent id
 
2051
                        or result[5][0] != result[5][1] # name
 
2052
                        or result[6][0] != result[6][1] # kind
 
2053
                        or result[7][0] != result[7][1] # executable
 
2054
                        ):
 
2055
                        yield (result[0],
 
2056
                               (utf8_decode_or_none(result[1][0]),
 
2057
                                utf8_decode_or_none(result[1][1])),
 
2058
                               result[2],
 
2059
                               result[3],
 
2060
                               result[4],
 
2061
                               (utf8_decode_or_none(result[5][0]),
 
2062
                                utf8_decode_or_none(result[5][1])),
 
2063
                               result[6],
 
2064
                               result[7],
 
2065
                              )
 
2066
            if want_unversioned and not path_handled and root_dir_info:
 
2067
                new_executable = bool(
 
2068
                    stat.S_ISREG(root_dir_info[3].st_mode)
 
2069
                    and stat.S_IEXEC & root_dir_info[3].st_mode)
 
2070
                yield (None,
 
2071
                       (None, current_root_unicode),
 
2072
                       True,
 
2073
                       (False, False),
 
2074
                       (None, None),
 
2075
                       (None, splitpath(current_root_unicode)[-1]),
 
2076
                       (None, root_dir_info[2]),
 
2077
                       (None, new_executable)
 
2078
                      )
 
2079
            initial_key = (current_root, '', '')
 
2080
            block_index, _ = state._find_block_index_from_key(initial_key)
 
2081
            if block_index == 0:
 
2082
                # we have processed the total root already, but because the
 
2083
                # initial key matched it we should skip it here.
 
2084
                block_index +=1
 
2085
            if root_dir_info and root_dir_info[2] == 'tree-reference':
 
2086
                current_dir_info = None
 
2087
            else:
 
2088
                dir_iterator = osutils._walkdirs_utf8(root_abspath, prefix=current_root)
 
2089
                try:
 
2090
                    current_dir_info = dir_iterator.next()
 
2091
                except OSError, e:
 
2092
                    # on win32, python2.4 has e.errno == ERROR_DIRECTORY, but
 
2093
                    # python 2.5 has e.errno == EINVAL,
 
2094
                    #            and e.winerror == ERROR_DIRECTORY
 
2095
                    e_winerror = getattr(e, 'winerror', None)
 
2096
                    win_errors = (ERROR_DIRECTORY, ERROR_PATH_NOT_FOUND)
 
2097
                    # there may be directories in the inventory even though
 
2098
                    # this path is not a file on disk: so mark it as end of
 
2099
                    # iterator
 
2100
                    if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
 
2101
                        current_dir_info = None
 
2102
                    elif (sys.platform == 'win32'
 
2103
                          and (e.errno in win_errors
 
2104
                               or e_winerror in win_errors)):
 
2105
                        current_dir_info = None
 
2106
                    else:
 
2107
                        raise
 
2108
                else:
 
2109
                    if current_dir_info[0][0] == '':
 
2110
                        # remove .bzr from iteration
 
2111
                        bzr_index = bisect_left(current_dir_info[1], ('.bzr',))
 
2112
                        assert current_dir_info[1][bzr_index][0] == '.bzr'
 
2113
                        del current_dir_info[1][bzr_index]
 
2114
            # walk until both the directory listing and the versioned metadata
 
2115
            # are exhausted. 
 
2116
            if (block_index < len(state._dirblocks) and
 
2117
                osutils.is_inside(current_root, state._dirblocks[block_index][0])):
 
2118
                current_block = state._dirblocks[block_index]
 
2119
            else:
 
2120
                current_block = None
 
2121
            while (current_dir_info is not None or
 
2122
                   current_block is not None):
 
2123
                if (current_dir_info and current_block
 
2124
                    and current_dir_info[0][0] != current_block[0]):
 
2125
                    if current_dir_info[0][0].split('/') < current_block[0].split('/'):
 
2126
                        # filesystem data refers to paths not covered by the dirblock.
 
2127
                        # this has two possibilities:
 
2128
                        # A) it is versioned but empty, so there is no block for it
 
2129
                        # B) it is not versioned.
 
2130
 
 
2131
                        # if (A) then we need to recurse into it to check for
 
2132
                        # new unknown files or directories.
 
2133
                        # if (B) then we should ignore it, because we don't
 
2134
                        # recurse into unknown directories.
 
2135
                        path_index = 0
 
2136
                        while path_index < len(current_dir_info[1]):
 
2137
                                current_path_info = current_dir_info[1][path_index]
 
2138
                                if want_unversioned:
 
2139
                                    if current_path_info[2] == 'directory':
 
2140
                                        if self.target._directory_is_tree_reference(
 
2141
                                            current_path_info[0].decode('utf8')):
 
2142
                                            current_path_info = current_path_info[:2] + \
 
2143
                                                ('tree-reference',) + current_path_info[3:]
 
2144
                                    new_executable = bool(
 
2145
                                        stat.S_ISREG(current_path_info[3].st_mode)
 
2146
                                        and stat.S_IEXEC & current_path_info[3].st_mode)
 
2147
                                    yield (None,
 
2148
                                        (None, utf8_decode_or_none(current_path_info[0])),
 
2149
                                        True,
 
2150
                                        (False, False),
 
2151
                                        (None, None),
 
2152
                                        (None, utf8_decode_or_none(current_path_info[1])),
 
2153
                                        (None, current_path_info[2]),
 
2154
                                        (None, new_executable))
 
2155
                                # dont descend into this unversioned path if it is
 
2156
                                # a dir
 
2157
                                if current_path_info[2] in ('directory',
 
2158
                                                            'tree-reference'):
 
2159
                                    del current_dir_info[1][path_index]
 
2160
                                    path_index -= 1
 
2161
                                path_index += 1
 
2162
 
 
2163
                        # This dir info has been handled, go to the next
 
2164
                        try:
 
2165
                            current_dir_info = dir_iterator.next()
 
2166
                        except StopIteration:
 
2167
                            current_dir_info = None
 
2168
                    else:
 
2169
                        # We have a dirblock entry for this location, but there
 
2170
                        # is no filesystem path for this. This is most likely
 
2171
                        # because a directory was removed from the disk.
 
2172
                        # We don't have to report the missing directory,
 
2173
                        # because that should have already been handled, but we
 
2174
                        # need to handle all of the files that are contained
 
2175
                        # within.
 
2176
                        for current_entry in current_block[1]:
 
2177
                            # entry referring to file not present on disk.
 
2178
                            # advance the entry only, after processing.
 
2179
                            for result in _process_entry(current_entry, None):
 
2180
                                # this check should probably be outside the loop: one
 
2181
                                # 'iterate two trees' api, and then _iter_changes filters
 
2182
                                # unchanged pairs. - RBC 20070226
 
2183
                                if (include_unchanged
 
2184
                                    or result[2]                    # content change
 
2185
                                    or result[3][0] != result[3][1] # versioned status
 
2186
                                    or result[4][0] != result[4][1] # parent id
 
2187
                                    or result[5][0] != result[5][1] # name
 
2188
                                    or result[6][0] != result[6][1] # kind
 
2189
                                    or result[7][0] != result[7][1] # executable
 
2190
                                    ):
 
2191
                                    yield (result[0],
 
2192
                                           (utf8_decode_or_none(result[1][0]),
 
2193
                                            utf8_decode_or_none(result[1][1])),
 
2194
                                           result[2],
 
2195
                                           result[3],
 
2196
                                           result[4],
 
2197
                                           (utf8_decode_or_none(result[5][0]),
 
2198
                                            utf8_decode_or_none(result[5][1])),
 
2199
                                           result[6],
 
2200
                                           result[7],
 
2201
                                          )
 
2202
                        block_index +=1
 
2203
                        if (block_index < len(state._dirblocks) and
 
2204
                            osutils.is_inside(current_root,
 
2205
                                              state._dirblocks[block_index][0])):
 
2206
                            current_block = state._dirblocks[block_index]
 
2207
                        else:
 
2208
                            current_block = None
 
2209
                    continue
 
2210
                entry_index = 0
 
2211
                if current_block and entry_index < len(current_block[1]):
 
2212
                    current_entry = current_block[1][entry_index]
 
2213
                else:
 
2214
                    current_entry = None
 
2215
                advance_entry = True
 
2216
                path_index = 0
 
2217
                if current_dir_info and path_index < len(current_dir_info[1]):
 
2218
                    current_path_info = current_dir_info[1][path_index]
 
2219
                    if current_path_info[2] == 'directory':
 
2220
                        if self.target._directory_is_tree_reference(
 
2221
                            current_path_info[0].decode('utf8')):
 
2222
                            current_path_info = current_path_info[:2] + \
 
2223
                                ('tree-reference',) + current_path_info[3:]
 
2224
                else:
 
2225
                    current_path_info = None
 
2226
                advance_path = True
 
2227
                path_handled = False
 
2228
                while (current_entry is not None or
 
2229
                    current_path_info is not None):
 
2230
                    if current_entry is None:
 
2231
                        # the check for path_handled when the path is adnvaced
 
2232
                        # will yield this path if needed.
 
2233
                        pass
 
2234
                    elif current_path_info is None:
 
2235
                        # no path is fine: the per entry code will handle it.
 
2236
                        for result in _process_entry(current_entry, current_path_info):
 
2237
                            # this check should probably be outside the loop: one
 
2238
                            # 'iterate two trees' api, and then _iter_changes filters
 
2239
                            # unchanged pairs. - RBC 20070226
 
2240
                            if (include_unchanged
 
2241
                                or result[2]                    # content change
 
2242
                                or result[3][0] != result[3][1] # versioned status
 
2243
                                or result[4][0] != result[4][1] # parent id
 
2244
                                or result[5][0] != result[5][1] # name
 
2245
                                or result[6][0] != result[6][1] # kind
 
2246
                                or result[7][0] != result[7][1] # executable
 
2247
                                ):
 
2248
                                yield (result[0],
 
2249
                                       (utf8_decode_or_none(result[1][0]),
 
2250
                                        utf8_decode_or_none(result[1][1])),
 
2251
                                       result[2],
 
2252
                                       result[3],
 
2253
                                       result[4],
 
2254
                                       (utf8_decode_or_none(result[5][0]),
 
2255
                                        utf8_decode_or_none(result[5][1])),
 
2256
                                       result[6],
 
2257
                                       result[7],
 
2258
                                      )
 
2259
                    elif (current_entry[0][1] != current_path_info[1]
 
2260
                          or current_entry[1][target_index][0] in 'ar'):
 
2261
                        # The current path on disk doesn't match the dirblock
 
2262
                        # record. Either the dirblock is marked as absent, or
 
2263
                        # the file on disk is not present at all in the
 
2264
                        # dirblock. Either way, report about the dirblock
 
2265
                        # entry, and let other code handle the filesystem one.
 
2266
                        if current_path_info[1].split('/') < current_entry[0][1].split('/'):
 
2267
                            # extra file on disk: pass for now, but only
 
2268
                            # increment the path, not the entry
 
2269
                            advance_entry = False
 
2270
                        else:
 
2271
                            # entry referring to file not present on disk.
 
2272
                            # advance the entry only, after processing.
 
2273
                            for result in _process_entry(current_entry, None):
 
2274
                                # this check should probably be outside the loop: one
 
2275
                                # 'iterate two trees' api, and then _iter_changes filters
 
2276
                                # unchanged pairs. - RBC 20070226
 
2277
                                if (include_unchanged
 
2278
                                    or result[2]                    # content change
 
2279
                                    or result[3][0] != result[3][1] # versioned status
 
2280
                                    or result[4][0] != result[4][1] # parent id
 
2281
                                    or result[5][0] != result[5][1] # name
 
2282
                                    or result[6][0] != result[6][1] # kind
 
2283
                                    or result[7][0] != result[7][1] # executable
 
2284
                                    ):
 
2285
                                    yield (result[0],
 
2286
                                           (utf8_decode_or_none(result[1][0]),
 
2287
                                            utf8_decode_or_none(result[1][1])),
 
2288
                                           result[2],
 
2289
                                           result[3],
 
2290
                                           result[4],
 
2291
                                           (utf8_decode_or_none(result[5][0]),
 
2292
                                            utf8_decode_or_none(result[5][1])),
 
2293
                                           result[6],
 
2294
                                           result[7],
 
2295
                                          )
 
2296
                            advance_path = False
 
2297
                    else:
 
2298
                        for result in _process_entry(current_entry, current_path_info):
 
2299
                            # this check should probably be outside the loop: one
 
2300
                            # 'iterate two trees' api, and then _iter_changes filters
 
2301
                            # unchanged pairs. - RBC 20070226
 
2302
                            path_handled = True
 
2303
                            if (include_unchanged
 
2304
                                or result[2]                    # content change
 
2305
                                or result[3][0] != result[3][1] # versioned status
 
2306
                                or result[4][0] != result[4][1] # parent id
 
2307
                                or result[5][0] != result[5][1] # name
 
2308
                                or result[6][0] != result[6][1] # kind
 
2309
                                or result[7][0] != result[7][1] # executable
 
2310
                                ):
 
2311
                                yield (result[0],
 
2312
                                       (utf8_decode_or_none(result[1][0]),
 
2313
                                        utf8_decode_or_none(result[1][1])),
 
2314
                                       result[2],
 
2315
                                       result[3],
 
2316
                                       result[4],
 
2317
                                       (utf8_decode_or_none(result[5][0]),
 
2318
                                        utf8_decode_or_none(result[5][1])),
 
2319
                                       result[6],
 
2320
                                       result[7],
 
2321
                                      )
 
2322
                    if advance_entry and current_entry is not None:
 
2323
                        entry_index += 1
 
2324
                        if entry_index < len(current_block[1]):
 
2325
                            current_entry = current_block[1][entry_index]
 
2326
                        else:
 
2327
                            current_entry = None
 
2328
                    else:
 
2329
                        advance_entry = True # reset the advance flaga
 
2330
                    if advance_path and current_path_info is not None:
 
2331
                        if not path_handled:
 
2332
                            # unversioned in all regards
 
2333
                            if want_unversioned:
 
2334
                                new_executable = bool(
 
2335
                                    stat.S_ISREG(current_path_info[3].st_mode)
 
2336
                                    and stat.S_IEXEC & current_path_info[3].st_mode)
 
2337
                                yield (None,
 
2338
                                    (None, utf8_decode_or_none(current_path_info[0])),
 
2339
                                    True,
 
2340
                                    (False, False),
 
2341
                                    (None, None),
 
2342
                                    (None, utf8_decode_or_none(current_path_info[1])),
 
2343
                                    (None, current_path_info[2]),
 
2344
                                    (None, new_executable))
 
2345
                            # dont descend into this unversioned path if it is
 
2346
                            # a dir
 
2347
                            if current_path_info[2] in ('directory'):
 
2348
                                del current_dir_info[1][path_index]
 
2349
                                path_index -= 1
 
2350
                        # dont descend the disk iterator into any tree 
 
2351
                        # paths.
 
2352
                        if current_path_info[2] == 'tree-reference':
 
2353
                            del current_dir_info[1][path_index]
 
2354
                            path_index -= 1
 
2355
                        path_index += 1
 
2356
                        if path_index < len(current_dir_info[1]):
 
2357
                            current_path_info = current_dir_info[1][path_index]
 
2358
                            if current_path_info[2] == 'directory':
 
2359
                                if self.target._directory_is_tree_reference(
 
2360
                                    current_path_info[0].decode('utf8')):
 
2361
                                    current_path_info = current_path_info[:2] + \
 
2362
                                        ('tree-reference',) + current_path_info[3:]
 
2363
                        else:
 
2364
                            current_path_info = None
 
2365
                        path_handled = False
 
2366
                    else:
 
2367
                        advance_path = True # reset the advance flagg.
 
2368
                if current_block is not None:
 
2369
                    block_index += 1
 
2370
                    if (block_index < len(state._dirblocks) and
 
2371
                        osutils.is_inside(current_root, state._dirblocks[block_index][0])):
 
2372
                        current_block = state._dirblocks[block_index]
 
2373
                    else:
 
2374
                        current_block = None
 
2375
                if current_dir_info is not None:
 
2376
                    try:
 
2377
                        current_dir_info = dir_iterator.next()
 
2378
                    except StopIteration:
 
2379
                        current_dir_info = None
 
2380
 
2094
2381
 
2095
2382
    @staticmethod
2096
2383
    def is_compatible(source, target):
2097
2384
        # the target must be a dirstate working tree
2098
 
        if not isinstance(target, DirStateWorkingTree):
 
2385
        if not isinstance(target, WorkingTree4):
2099
2386
            return False
2100
 
        # the source must be a revtree or dirstate rev tree.
 
2387
        # the source must be a revtreee or dirstate rev tree.
2101
2388
        if not isinstance(source,
2102
2389
            (revisiontree.RevisionTree, DirStateRevisionTree)):
2103
2390
            return False
2104
2391
        # the source revid must be in the target dirstate
2105
 
        if not (source._revision_id == _mod_revision.NULL_REVISION or
 
2392
        if not (source._revision_id == NULL_REVISION or
2106
2393
            source._revision_id in target.get_parent_ids()):
2107
 
            # TODO: what about ghosts? it may well need to
 
2394
            # TODO: what about ghosts? it may well need to 
2108
2395
            # check for them explicitly.
2109
2396
            return False
2110
2397
        return True
2120
2407
 
2121
2408
    def convert(self, tree):
2122
2409
        # lock the control files not the tree, so that we dont get tree
2123
 
        # on-unlock behaviours, and so that noone else diddles with the
 
2410
        # on-unlock behaviours, and so that noone else diddles with the 
2124
2411
        # tree during upgrade.
2125
2412
        tree._control_files.lock_write()
2126
2413
        try:
2152
2439
 
2153
2440
    def update_format(self, tree):
2154
2441
        """Change the format marker."""
2155
 
        tree._transport.put_bytes('format',
2156
 
            self.target_format.get_format_string(),
2157
 
            mode=tree.bzrdir._get_file_mode())
2158
 
 
2159
 
 
2160
 
class Converter4to5(object):
2161
 
    """Perform an in-place upgrade of format 4 to format 5 trees."""
2162
 
 
2163
 
    def __init__(self):
2164
 
        self.target_format = WorkingTreeFormat5()
2165
 
 
2166
 
    def convert(self, tree):
2167
 
        # lock the control files not the tree, so that we don't get tree
2168
 
        # on-unlock behaviours, and so that no-one else diddles with the
2169
 
        # tree during upgrade.
2170
 
        tree._control_files.lock_write()
2171
 
        try:
2172
 
            self.update_format(tree)
2173
 
        finally:
2174
 
            tree._control_files.unlock()
2175
 
 
2176
 
    def update_format(self, tree):
2177
 
        """Change the format marker."""
2178
 
        tree._transport.put_bytes('format',
2179
 
            self.target_format.get_format_string(),
2180
 
            mode=tree.bzrdir._get_file_mode())
2181
 
 
2182
 
 
2183
 
class Converter4or5to6(object):
2184
 
    """Perform an in-place upgrade of format 4 or 5 to format 6 trees."""
2185
 
 
2186
 
    def __init__(self):
2187
 
        self.target_format = WorkingTreeFormat6()
2188
 
 
2189
 
    def convert(self, tree):
2190
 
        # lock the control files not the tree, so that we don't get tree
2191
 
        # on-unlock behaviours, and so that no-one else diddles with the
2192
 
        # tree during upgrade.
2193
 
        tree._control_files.lock_write()
2194
 
        try:
2195
 
            self.init_custom_control_files(tree)
2196
 
            self.update_format(tree)
2197
 
        finally:
2198
 
            tree._control_files.unlock()
2199
 
 
2200
 
    def init_custom_control_files(self, tree):
2201
 
        """Initialize custom control files."""
2202
 
        tree._transport.put_bytes('views', '',
2203
 
            mode=tree.bzrdir._get_file_mode())
2204
 
 
2205
 
    def update_format(self, tree):
2206
 
        """Change the format marker."""
2207
 
        tree._transport.put_bytes('format',
2208
 
            self.target_format.get_format_string(),
2209
 
            mode=tree.bzrdir._get_file_mode())
 
2442
        tree._control_files.put_utf8('format',
 
2443
            self.target_format.get_format_string())