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  • Committer: Martin
  • Date: 2017-06-11 01:12:29 UTC
  • mto: This revision was merged to the branch mainline in revision 6685.
  • Revision ID: gzlist@googlemail.com-20170611011229-somdjbalby8m7vlw
Make _chunks_to_lines pass for Python 3

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1
 
# Copyright (C) 2006-2010 Canonical Ltd
 
1
# Copyright (C) 2006-2011 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
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
 
17
from __future__ import absolute_import
 
18
 
17
19
import os
18
20
import errno
19
21
from stat import S_ISREG, S_IEXEC
20
22
import time
21
23
 
22
 
from bzrlib.lazy_import import lazy_import
23
 
lazy_import(globals(), """
24
 
from bzrlib import (
 
24
from . import (
 
25
    config as _mod_config,
 
26
    errors,
 
27
    inventorytree,
 
28
    lazy_import,
 
29
    registry,
 
30
    trace,
 
31
    tree,
 
32
    )
 
33
lazy_import.lazy_import(globals(), """
 
34
from breezy import (
25
35
    annotate,
26
36
    bencode,
27
 
    bzrdir,
 
37
    controldir,
28
38
    commit,
 
39
    conflicts,
29
40
    delta,
30
 
    errors,
31
41
    inventory,
32
42
    multiparent,
33
43
    osutils,
34
44
    revision as _mod_revision,
35
45
    ui,
 
46
    urlutils,
36
47
    )
 
48
from breezy.i18n import gettext
37
49
""")
38
 
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
 
50
from .errors import (DuplicateKey, MalformedTransform,
39
51
                           ReusingTransform, CantMoveRoot,
40
 
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
 
52
                           ImmortalLimbo, NoFinalPath,
41
53
                           UnableCreateSymlink)
42
 
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
43
 
from bzrlib.inventory import InventoryEntry
44
 
from bzrlib.osutils import (
 
54
from .filters import filtered_output_bytes, ContentFilterContext
 
55
from .mutabletree import MutableTree
 
56
from .osutils import (
45
57
    delete_any,
46
58
    file_kind,
47
59
    has_symlinks,
48
 
    lexists,
49
60
    pathjoin,
50
61
    sha_file,
51
62
    splitpath,
52
 
    supports_executable,
53
 
)
54
 
from bzrlib.progress import ProgressPhase
55
 
from bzrlib.symbol_versioning import (
56
 
        deprecated_function,
57
 
        deprecated_in,
58
 
        )
59
 
from bzrlib.trace import mutter, warning
60
 
from bzrlib import tree
61
 
import bzrlib.ui
62
 
import bzrlib.urlutils as urlutils
 
63
    )
 
64
from .progress import ProgressPhase
 
65
from .sixish import (
 
66
    viewitems,
 
67
    viewvalues,
 
68
    )
63
69
 
64
70
 
65
71
ROOT_PARENT = "root-parent"
66
72
 
67
 
 
68
73
def unique_add(map, key, value):
69
74
    if key in map:
70
75
        raise DuplicateKey(key=key)
71
76
    map[key] = value
72
77
 
73
78
 
 
79
 
74
80
class _TransformResults(object):
75
81
    def __init__(self, modified_paths, rename_count):
76
82
        object.__init__(self)
100
106
        self._new_parent = {}
101
107
        # mapping of trans_id with new contents -> new file_kind
102
108
        self._new_contents = {}
 
109
        # mapping of trans_id => (sha1 of content, stat_value)
 
110
        self._observed_sha1s = {}
103
111
        # Set of trans_ids whose contents will be removed
104
112
        self._removed_contents = set()
105
113
        # Mapping of trans_id -> new execute-bit value
124
132
            self._new_root = self.trans_id_tree_file_id(root_id)
125
133
        else:
126
134
            self._new_root = None
127
 
        # Indictor of whether the transform has been applied
 
135
        # Indicator of whether the transform has been applied
128
136
        self._done = False
129
137
        # A progress bar
130
138
        self._pb = pb
133
141
        # A counter of how many files have been renamed
134
142
        self.rename_count = 0
135
143
 
 
144
    def __enter__(self):
 
145
        """Support Context Manager API."""
 
146
        return self
 
147
 
 
148
    def __exit__(self, exc_type, exc_val, exc_tb):
 
149
        """Support Context Manager API."""
 
150
        self.finalize()
 
151
 
136
152
    def finalize(self):
137
153
        """Release the working tree lock, if held.
138
154
 
141
157
        """
142
158
        if self._tree is None:
143
159
            return
 
160
        for hook in MutableTree.hooks['post_transform']:
 
161
            hook(self._tree, self)
144
162
        self._tree.unlock()
145
163
        self._tree = None
146
164
 
213
231
        This means that the old root trans-id becomes obsolete, so it is
214
232
        recommended only to invoke this after the root trans-id has become
215
233
        irrelevant.
 
234
 
216
235
        """
217
 
        new_roots = [k for k, v in self._new_parent.iteritems() if v is
218
 
                     ROOT_PARENT]
 
236
        new_roots = [k for k, v in viewitems(self._new_parent)
 
237
                     if v == ROOT_PARENT]
219
238
        if len(new_roots) < 1:
220
239
            return
221
240
        if len(new_roots) != 1:
224
243
            self._new_root = new_roots[0]
225
244
            return
226
245
        old_new_root = new_roots[0]
227
 
        # TODO: What to do if a old_new_root is present, but self._new_root is
228
 
        #       not listed as being removed? This code explicitly unversions
229
 
        #       the old root and versions it with the new file_id. Though that
230
 
        #       seems like an incomplete delta
231
 
 
232
246
        # unversion the new root's directory.
233
 
        file_id = self.final_file_id(old_new_root)
 
247
        if self.final_kind(self._new_root) is None:
 
248
            file_id = self.final_file_id(old_new_root)
 
249
        else:
 
250
            file_id = self.final_file_id(self._new_root)
234
251
        if old_new_root in self._new_id:
235
252
            self.cancel_versioning(old_new_root)
236
253
        else:
240
257
        if (self.tree_file_id(self._new_root) is not None and
241
258
            self._new_root not in self._removed_id):
242
259
            self.unversion_file(self._new_root)
243
 
        self.version_file(file_id, self._new_root)
 
260
        if file_id is not None:
 
261
            self.version_file(file_id, self._new_root)
244
262
 
245
263
        # Now move children of new root into old root directory.
246
264
        # Ensure all children are registered with the transaction, but don't
287
305
            return self._r_new_id[file_id]
288
306
        else:
289
307
            try:
290
 
                self._tree.iter_entries_by_dir([file_id]).next()
 
308
                next(self._tree.iter_entries_by_dir([file_id]))
291
309
            except StopIteration:
292
310
                if file_id in self._non_present_ids:
293
311
                    return self._non_present_ids[file_id]
315
333
 
316
334
    def delete_contents(self, trans_id):
317
335
        """Schedule the contents of a path entry for deletion"""
318
 
        # Ensure that the object exists in the WorkingTree, this will raise an
319
 
        # exception if there is a problem
320
 
        self.tree_kind(trans_id)
321
 
        self._removed_contents.add(trans_id)
 
336
        kind = self.tree_kind(trans_id)
 
337
        if kind is not None:
 
338
            self._removed_contents.add(trans_id)
322
339
 
323
340
    def cancel_deletion(self, trans_id):
324
341
        """Cancel a scheduled deletion"""
381
398
        return sorted(FinalPaths(self).get_paths(new_ids))
382
399
 
383
400
    def _inventory_altered(self):
384
 
        """Get the trans_ids and paths of files needing new inv entries."""
385
 
        new_ids = set()
386
 
        for id_set in [self._new_name, self._new_parent, self._new_id,
 
401
        """Determine which trans_ids need new Inventory entries.
 
402
 
 
403
        An new entry is needed when anything that would be reflected by an
 
404
        inventory entry changes, including file name, file_id, parent file_id,
 
405
        file kind, and the execute bit.
 
406
 
 
407
        Some care is taken to return entries with real changes, not cases
 
408
        where the value is deleted and then restored to its original value,
 
409
        but some actually unchanged values may be returned.
 
410
 
 
411
        :returns: A list of (path, trans_id) for all items requiring an
 
412
            inventory change. Ordered by path.
 
413
        """
 
414
        changed_ids = set()
 
415
        # Find entries whose file_ids are new (or changed).
 
416
        new_file_id = set(t for t in self._new_id
 
417
                          if self._new_id[t] != self.tree_file_id(t))
 
418
        for id_set in [self._new_name, self._new_parent, new_file_id,
387
419
                       self._new_executability]:
388
 
            new_ids.update(id_set)
 
420
            changed_ids.update(id_set)
 
421
        # removing implies a kind change
389
422
        changed_kind = set(self._removed_contents)
 
423
        # so does adding
390
424
        changed_kind.intersection_update(self._new_contents)
391
 
        changed_kind.difference_update(new_ids)
392
 
        changed_kind = (t for t in changed_kind if self.tree_kind(t) !=
393
 
                        self.final_kind(t))
394
 
        new_ids.update(changed_kind)
395
 
        return sorted(FinalPaths(self).get_paths(new_ids))
 
425
        # Ignore entries that are already known to have changed.
 
426
        changed_kind.difference_update(changed_ids)
 
427
        #  to keep only the truly changed ones
 
428
        changed_kind = (t for t in changed_kind
 
429
                        if self.tree_kind(t) != self.final_kind(t))
 
430
        # all kind changes will alter the inventory
 
431
        changed_ids.update(changed_kind)
 
432
        # To find entries with changed parent_ids, find parents which existed,
 
433
        # but changed file_id.
 
434
        changed_file_id = set(t for t in new_file_id if t in self._removed_id)
 
435
        # Now add all their children to the set.
 
436
        for parent_trans_id in new_file_id:
 
437
            changed_ids.update(self.iter_tree_children(parent_trans_id))
 
438
        return sorted(FinalPaths(self).get_paths(changed_ids))
396
439
 
397
440
    def final_kind(self, trans_id):
398
441
        """Determine the final file kind, after any changes applied.
399
442
 
400
 
        Raises NoSuchFile if the file does not exist/has no contents.
401
 
        (It is conceivable that a path would be created without the
402
 
        corresponding contents insertion command)
 
443
        :return: None if the file does not exist/has no contents.  (It is
 
444
            conceivable that a path would be created without the corresponding
 
445
            contents insertion command)
403
446
        """
404
447
        if trans_id in self._new_contents:
405
448
            return self._new_contents[trans_id]
406
449
        elif trans_id in self._removed_contents:
407
 
            raise NoSuchFile(None)
 
450
            return None
408
451
        else:
409
452
            return self.tree_kind(trans_id)
410
453
 
441
484
        file_id = self.tree_file_id(trans_id)
442
485
        if file_id is not None:
443
486
            return file_id
444
 
        for key, value in self._non_present_ids.iteritems():
 
487
        for key, value in viewitems(self._non_present_ids):
445
488
            if value == trans_id:
446
489
                return key
447
490
 
471
514
        Only new paths and parents of tree files with assigned ids are used.
472
515
        """
473
516
        by_parent = {}
474
 
        items = list(self._new_parent.iteritems())
475
 
        items.extend((t, self.final_parent(t)) for t in
476
 
                      self._tree_id_paths.keys())
 
517
        items = list(viewitems(self._new_parent))
 
518
        items.extend((t, self.final_parent(t))
 
519
            for t in list(self._tree_id_paths))
477
520
        for trans_id, parent_id in items:
478
521
            if parent_id not in by_parent:
479
522
                by_parent[parent_id] = set()
517
560
        Active parents are those which gain children, and those which are
518
561
        removed.  This is a necessary first step in detecting conflicts.
519
562
        """
520
 
        parents = self.by_parent().keys()
 
563
        parents = list(self.by_parent())
521
564
        parents.extend([t for t in self._removed_contents if
522
565
                        self.tree_kind(t) == 'directory'])
523
566
        for trans_id in self._removed_id:
524
567
            file_id = self.tree_file_id(trans_id)
525
568
            if file_id is not None:
526
 
                if self._tree.inventory[file_id].kind == 'directory':
 
569
                if self._tree.stored_kind(file_id) == 'directory':
527
570
                    parents.append(trans_id)
528
571
            elif self.tree_kind(trans_id) == 'directory':
529
572
                parents.append(trans_id)
532
575
            # ensure that all children are registered with the transaction
533
576
            list(self.iter_tree_children(parent_id))
534
577
 
535
 
    def has_named_child(self, by_parent, parent_id, name):
536
 
        try:
537
 
            children = by_parent[parent_id]
538
 
        except KeyError:
539
 
            children = []
540
 
        for child in children:
 
578
    def _has_named_child(self, name, parent_id, known_children):
 
579
        """Does a parent already have a name child.
 
580
 
 
581
        :param name: The searched for name.
 
582
 
 
583
        :param parent_id: The parent for which the check is made.
 
584
 
 
585
        :param known_children: The already known children. This should have
 
586
            been recently obtained from `self.by_parent.get(parent_id)`
 
587
            (or will be if None is passed).
 
588
        """
 
589
        if known_children is None:
 
590
            known_children = self.by_parent().get(parent_id, [])
 
591
        for child in known_children:
541
592
            if self.final_name(child) == name:
542
593
                return True
543
 
        try:
544
 
            path = self._tree_id_paths[parent_id]
545
 
        except KeyError:
 
594
        parent_path = self._tree_id_paths.get(parent_id, None)
 
595
        if parent_path is None:
 
596
            # No parent... no children
546
597
            return False
547
 
        childpath = joinpath(path, name)
548
 
        child_id = self._tree_path_ids.get(childpath)
 
598
        child_path = joinpath(parent_path, name)
 
599
        child_id = self._tree_path_ids.get(child_path, None)
549
600
        if child_id is None:
550
 
            return lexists(self._tree.abspath(childpath))
 
601
            # Not known by the tree transform yet, check the filesystem
 
602
            return osutils.lexists(self._tree.abspath(child_path))
551
603
        else:
552
 
            if self.final_parent(child_id) != parent_id:
553
 
                return False
554
 
            if child_id in self._removed_contents:
555
 
                # XXX What about dangling file-ids?
556
 
                return False
557
 
            else:
558
 
                return True
 
604
            raise AssertionError('child_id is missing: %s, %s, %s'
 
605
                                 % (name, parent_id, child_id))
 
606
 
 
607
    def _available_backup_name(self, name, target_id):
 
608
        """Find an available backup name.
 
609
 
 
610
        :param name: The basename of the file.
 
611
 
 
612
        :param target_id: The directory trans_id where the backup should 
 
613
            be placed.
 
614
        """
 
615
        known_children = self.by_parent().get(target_id, [])
 
616
        return osutils.available_backup_name(
 
617
            name,
 
618
            lambda base: self._has_named_child(
 
619
                base, target_id, known_children))
559
620
 
560
621
    def _parent_loops(self):
561
622
        """No entry should be its own ancestor"""
563
624
        for trans_id in self._new_parent:
564
625
            seen = set()
565
626
            parent_id = trans_id
566
 
            while parent_id is not ROOT_PARENT:
 
627
            while parent_id != ROOT_PARENT:
567
628
                seen.add(parent_id)
568
629
                try:
569
630
                    parent_id = self.final_parent(parent_id)
578
639
    def _unversioned_parents(self, by_parent):
579
640
        """If parent directories are versioned, children must be versioned."""
580
641
        conflicts = []
581
 
        for parent_id, children in by_parent.iteritems():
582
 
            if parent_id is ROOT_PARENT:
 
642
        for parent_id, children in viewitems(by_parent):
 
643
            if parent_id == ROOT_PARENT:
583
644
                continue
584
645
            if self.final_file_id(parent_id) is not None:
585
646
                continue
595
656
        However, existing entries with no contents are okay.
596
657
        """
597
658
        conflicts = []
598
 
        for trans_id in self._new_id.iterkeys():
599
 
            try:
600
 
                kind = self.final_kind(trans_id)
601
 
            except NoSuchFile:
 
659
        for trans_id in self._new_id:
 
660
            kind = self.final_kind(trans_id)
 
661
            if kind is None:
602
662
                conflicts.append(('versioning no contents', trans_id))
603
663
                continue
604
 
            if not InventoryEntry.versionable_kind(kind):
 
664
            if not inventory.InventoryEntry.versionable_kind(kind):
605
665
                conflicts.append(('versioning bad kind', trans_id, kind))
606
666
        return conflicts
607
667
 
618
678
            if self.final_file_id(trans_id) is None:
619
679
                conflicts.append(('unversioned executability', trans_id))
620
680
            else:
621
 
                try:
622
 
                    non_file = self.final_kind(trans_id) != "file"
623
 
                except NoSuchFile:
624
 
                    non_file = True
625
 
                if non_file is True:
 
681
                if self.final_kind(trans_id) != "file":
626
682
                    conflicts.append(('non-file executability', trans_id))
627
683
        return conflicts
628
684
 
630
686
        """Check for overwrites (not permitted on Win32)"""
631
687
        conflicts = []
632
688
        for trans_id in self._new_contents:
633
 
            try:
634
 
                self.tree_kind(trans_id)
635
 
            except NoSuchFile:
 
689
            if self.tree_kind(trans_id) is None:
636
690
                continue
637
691
            if trans_id not in self._removed_contents:
638
692
                conflicts.append(('overwrite', trans_id,
644
698
        conflicts = []
645
699
        if (self._new_name, self._new_parent) == ({}, {}):
646
700
            return conflicts
647
 
        for children in by_parent.itervalues():
648
 
            name_ids = [(self.final_name(t), t) for t in children]
649
 
            if not self._case_sensitive_target:
650
 
                name_ids = [(n.lower(), t) for n, t in name_ids]
 
701
        for children in viewvalues(by_parent):
 
702
            name_ids = []
 
703
            for child_tid in children:
 
704
                name = self.final_name(child_tid)
 
705
                if name is not None:
 
706
                    # Keep children only if they still exist in the end
 
707
                    if not self._case_sensitive_target:
 
708
                        name = name.lower()
 
709
                    name_ids.append((name, child_tid))
651
710
            name_ids.sort()
652
711
            last_name = None
653
712
            last_trans_id = None
654
713
            for name, trans_id in name_ids:
655
 
                try:
656
 
                    kind = self.final_kind(trans_id)
657
 
                except NoSuchFile:
658
 
                    kind = None
 
714
                kind = self.final_kind(trans_id)
659
715
                file_id = self.final_file_id(trans_id)
660
716
                if kind is None and file_id is None:
661
717
                    continue
673
729
                                self._removed_id))
674
730
        all_ids = self._tree.all_file_ids()
675
731
        active_tree_ids = all_ids.difference(removed_tree_ids)
676
 
        for trans_id, file_id in self._new_id.iteritems():
 
732
        for trans_id, file_id in viewitems(self._new_id):
677
733
            if file_id in active_tree_ids:
678
734
                old_trans_id = self.trans_id_tree_file_id(file_id)
679
735
                conflicts.append(('duplicate id', old_trans_id, trans_id))
680
736
        return conflicts
681
737
 
682
738
    def _parent_type_conflicts(self, by_parent):
683
 
        """parents must have directory 'contents'."""
 
739
        """Children must have a directory parent"""
684
740
        conflicts = []
685
 
        for parent_id, children in by_parent.iteritems():
686
 
            if parent_id is ROOT_PARENT:
687
 
                continue
688
 
            if not self._any_contents(children):
689
 
                continue
690
 
            for child in children:
691
 
                try:
692
 
                    self.final_kind(child)
693
 
                except NoSuchFile:
694
 
                    continue
695
 
            try:
696
 
                kind = self.final_kind(parent_id)
697
 
            except NoSuchFile:
698
 
                kind = None
 
741
        for parent_id, children in viewitems(by_parent):
 
742
            if parent_id == ROOT_PARENT:
 
743
                continue
 
744
            no_children = True
 
745
            for child_id in children:
 
746
                if self.final_kind(child_id) is not None:
 
747
                    no_children = False
 
748
                    break
 
749
            if no_children:
 
750
                continue
 
751
            # There is at least a child, so we need an existing directory to
 
752
            # contain it.
 
753
            kind = self.final_kind(parent_id)
699
754
            if kind is None:
 
755
                # The directory will be deleted
700
756
                conflicts.append(('missing parent', parent_id))
701
757
            elif kind != "directory":
 
758
                # Meh, we need a *directory* to put something in it
702
759
                conflicts.append(('non-directory parent', parent_id))
703
760
        return conflicts
704
761
 
705
 
    def _any_contents(self, trans_ids):
706
 
        """Return true if any of the trans_ids, will have contents."""
707
 
        for trans_id in trans_ids:
708
 
            try:
709
 
                kind = self.final_kind(trans_id)
710
 
            except NoSuchFile:
711
 
                continue
712
 
            return True
713
 
        return False
714
 
 
715
762
    def _set_executability(self, path, trans_id):
716
763
        """Set the executability of versioned files """
717
 
        if supports_executable():
 
764
        if self._tree._supports_executable():
718
765
            new_executability = self._new_executability[trans_id]
719
766
            abspath = self._tree.abspath(path)
720
767
            current_mode = os.stat(abspath).st_mode
721
768
            if new_executability:
722
769
                umask = os.umask(0)
723
770
                os.umask(umask)
724
 
                to_mode = current_mode | (0100 & ~umask)
 
771
                to_mode = current_mode | (0o100 & ~umask)
725
772
                # Enable x-bit for others only if they can read it.
726
 
                if current_mode & 0004:
727
 
                    to_mode |= 0001 & ~umask
728
 
                if current_mode & 0040:
729
 
                    to_mode |= 0010 & ~umask
 
773
                if current_mode & 0o004:
 
774
                    to_mode |= 0o001 & ~umask
 
775
                if current_mode & 0o040:
 
776
                    to_mode |= 0o010 & ~umask
730
777
            else:
731
 
                to_mode = current_mode & ~0111
732
 
            os.chmod(abspath, to_mode)
 
778
                to_mode = current_mode & ~0o111
 
779
            osutils.chmod_if_possible(abspath, to_mode)
733
780
 
734
781
    def _new_entry(self, name, parent_id, file_id):
735
782
        """Helper function to create a new filesystem entry."""
739
786
        return trans_id
740
787
 
741
788
    def new_file(self, name, parent_id, contents, file_id=None,
742
 
                 executable=None):
 
789
                 executable=None, sha1=None):
743
790
        """Convenience method to create files.
744
791
 
745
792
        name is the name of the file to create.
752
799
        trans_id = self._new_entry(name, parent_id, file_id)
753
800
        # TODO: rather than scheduling a set_executable call,
754
801
        # have create_file create the file with the right mode.
755
 
        self.create_file(contents, trans_id)
 
802
        self.create_file(contents, trans_id, sha1=sha1)
756
803
        if executable is not None:
757
804
            self.set_executability(executable, trans_id)
758
805
        return trans_id
781
828
        self.create_symlink(target, trans_id)
782
829
        return trans_id
783
830
 
 
831
    def new_orphan(self, trans_id, parent_id):
 
832
        """Schedule an item to be orphaned.
 
833
 
 
834
        When a directory is about to be removed, its children, if they are not
 
835
        versioned are moved out of the way: they don't have a parent anymore.
 
836
 
 
837
        :param trans_id: The trans_id of the existing item.
 
838
        :param parent_id: The parent trans_id of the item.
 
839
        """
 
840
        raise NotImplementedError(self.new_orphan)
 
841
 
 
842
    def _get_potential_orphans(self, dir_id):
 
843
        """Find the potential orphans in a directory.
 
844
 
 
845
        A directory can't be safely deleted if there are versioned files in it.
 
846
        If all the contained files are unversioned then they can be orphaned.
 
847
 
 
848
        The 'None' return value means that the directory contains at least one
 
849
        versioned file and should not be deleted.
 
850
 
 
851
        :param dir_id: The directory trans id.
 
852
 
 
853
        :return: A list of the orphan trans ids or None if at least one
 
854
             versioned file is present.
 
855
        """
 
856
        orphans = []
 
857
        # Find the potential orphans, stop if one item should be kept
 
858
        for child_tid in self.by_parent()[dir_id]:
 
859
            if child_tid in self._removed_contents:
 
860
                # The child is removed as part of the transform. Since it was
 
861
                # versioned before, it's not an orphan
 
862
                continue
 
863
            elif self.final_file_id(child_tid) is None:
 
864
                # The child is not versioned
 
865
                orphans.append(child_tid)
 
866
            else:
 
867
                # We have a versioned file here, searching for orphans is
 
868
                # meaningless.
 
869
                orphans = None
 
870
                break
 
871
        return orphans
 
872
 
784
873
    def _affected_ids(self):
785
874
        """Return the set of transform ids affected by the transform"""
786
875
        trans_ids = set(self._removed_id)
787
 
        trans_ids.update(self._new_id.keys())
 
876
        trans_ids.update(self._new_id)
788
877
        trans_ids.update(self._removed_contents)
789
 
        trans_ids.update(self._new_contents.keys())
790
 
        trans_ids.update(self._new_executability.keys())
791
 
        trans_ids.update(self._new_name.keys())
792
 
        trans_ids.update(self._new_parent.keys())
 
878
        trans_ids.update(self._new_contents)
 
879
        trans_ids.update(self._new_executability)
 
880
        trans_ids.update(self._new_name)
 
881
        trans_ids.update(self._new_parent)
793
882
        return trans_ids
794
883
 
795
884
    def _get_file_id_maps(self):
845
934
        Return a (name, parent, kind, executable) tuple
846
935
        """
847
936
        to_name = self.final_name(to_trans_id)
848
 
        try:
849
 
            to_kind = self.final_kind(to_trans_id)
850
 
        except NoSuchFile:
851
 
            to_kind = None
 
937
        to_kind = self.final_kind(to_trans_id)
852
938
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
853
939
        if to_trans_id in self._new_executability:
854
940
            to_executable = self._new_executability[to_trans_id]
872
958
        from_trans_ids, to_trans_ids = self._get_file_id_maps()
873
959
        results = []
874
960
        # Now iterate through all active file_ids
875
 
        for file_id in set(from_trans_ids.keys() + to_trans_ids.keys()):
 
961
        for file_id in set(from_trans_ids).union(to_trans_ids):
876
962
            modified = False
877
963
            from_trans_id = from_trans_ids.get(file_id)
878
964
            # find file ids, and determine versioning state
1015
1101
        :param serializer: A Serialiser like pack.ContainerSerializer.
1016
1102
        """
1017
1103
        new_name = dict((k, v.encode('utf-8')) for k, v in
1018
 
                        self._new_name.items())
 
1104
                        viewitems(self._new_name))
1019
1105
        new_executability = dict((k, int(v)) for k, v in
1020
 
                                 self._new_executability.items())
 
1106
                                 viewitems(self._new_executability))
1021
1107
        tree_path_ids = dict((k.encode('utf-8'), v)
1022
 
                             for k, v in self._tree_path_ids.items())
 
1108
                             for k, v in viewitems(self._tree_path_ids))
1023
1109
        attribs = {
1024
1110
            '_id_number': self._id_number,
1025
1111
            '_new_name': new_name,
1033
1119
            }
1034
1120
        yield serializer.bytes_record(bencode.bencode(attribs),
1035
1121
                                      (('attribs',),))
1036
 
        for trans_id, kind in self._new_contents.items():
 
1122
        for trans_id, kind in viewitems(self._new_contents):
1037
1123
            if kind == 'file':
1038
1124
                lines = osutils.chunks_to_lines(
1039
1125
                    self._read_file_chunks(trans_id))
1052
1138
        :param records: An iterable of (names, content) tuples, as per
1053
1139
            pack.ContainerPushParser.
1054
1140
        """
1055
 
        names, content = records.next()
 
1141
        names, content = next(records)
1056
1142
        attribs = bencode.bdecode(content)
1057
1143
        self._id_number = attribs['_id_number']
1058
1144
        self._new_name = dict((k, v.decode('utf-8'))
1059
 
                            for k, v in attribs['_new_name'].items())
 
1145
                              for k, v in viewitems(attribs['_new_name']))
1060
1146
        self._new_parent = attribs['_new_parent']
1061
 
        self._new_executability = dict((k, bool(v)) for k, v in
1062
 
            attribs['_new_executability'].items())
 
1147
        self._new_executability = dict((k, bool(v))
 
1148
            for k, v in viewitems(attribs['_new_executability']))
1063
1149
        self._new_id = attribs['_new_id']
1064
 
        self._r_new_id = dict((v, k) for k, v in self._new_id.items())
 
1150
        self._r_new_id = dict((v, k) for k, v in viewitems(self._new_id))
1065
1151
        self._tree_path_ids = {}
1066
1152
        self._tree_id_paths = {}
1067
 
        for bytepath, trans_id in attribs['_tree_path_ids'].items():
 
1153
        for bytepath, trans_id in viewitems(attribs['_tree_path_ids']):
1068
1154
            path = bytepath.decode('utf-8')
1069
1155
            self._tree_path_ids[path] = trans_id
1070
1156
            self._tree_id_paths[trans_id] = path
1101
1187
        self._deletiondir = None
1102
1188
        # A mapping of transform ids to their limbo filename
1103
1189
        self._limbo_files = {}
 
1190
        self._possibly_stale_limbo_files = set()
1104
1191
        # A mapping of transform ids to a set of the transform ids of children
1105
1192
        # that their limbo directory has
1106
1193
        self._limbo_children = {}
1119
1206
        if self._tree is None:
1120
1207
            return
1121
1208
        try:
1122
 
            entries = [(self._limbo_name(t), t, k) for t, k in
1123
 
                       self._new_contents.iteritems()]
1124
 
            entries.sort(reverse=True)
1125
 
            for path, trans_id, kind in entries:
1126
 
                delete_any(path)
 
1209
            limbo_paths = list(viewvalues(self._limbo_files))
 
1210
            limbo_paths.extend(self._possibly_stale_limbo_files)
 
1211
            limbo_paths.sort(reverse=True)
 
1212
            for path in limbo_paths:
 
1213
                try:
 
1214
                    delete_any(path)
 
1215
                except OSError as e:
 
1216
                    if e.errno != errno.ENOENT:
 
1217
                        raise
 
1218
                    # XXX: warn? perhaps we just got interrupted at an
 
1219
                    # inconvenient moment, but perhaps files are disappearing
 
1220
                    # from under us?
1127
1221
            try:
1128
1222
                delete_any(self._limbodir)
1129
1223
            except OSError:
1137
1231
        finally:
1138
1232
            TreeTransformBase.finalize(self)
1139
1233
 
 
1234
    def _limbo_supports_executable(self):
 
1235
        """Check if the limbo path supports the executable bit."""
 
1236
        # FIXME: Check actual file system capabilities of limbodir
 
1237
        return osutils.supports_executable()
 
1238
 
1140
1239
    def _limbo_name(self, trans_id):
1141
1240
        """Generate the limbo name of a file"""
1142
1241
        limbo_name = self._limbo_files.get(trans_id)
1178
1277
        entries from _limbo_files, because they are now stale.
1179
1278
        """
1180
1279
        for trans_id in trans_ids:
1181
 
            old_path = self._limbo_files.pop(trans_id)
 
1280
            old_path = self._limbo_files[trans_id]
 
1281
            self._possibly_stale_limbo_files.add(old_path)
 
1282
            del self._limbo_files[trans_id]
1182
1283
            if trans_id not in self._new_contents:
1183
1284
                continue
1184
1285
            new_path = self._limbo_name(trans_id)
1185
 
            osutils.rename(old_path, new_path)
 
1286
            os.rename(old_path, new_path)
 
1287
            self._possibly_stale_limbo_files.remove(old_path)
1186
1288
            for descendant in self._limbo_descendants(trans_id):
1187
1289
                desc_path = self._limbo_files[descendant]
1188
1290
                desc_path = new_path + desc_path[len(old_path):]
1195
1297
            descendants.update(self._limbo_descendants(descendant))
1196
1298
        return descendants
1197
1299
 
1198
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1300
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1199
1301
        """Schedule creation of a new file.
1200
1302
 
1201
 
        See also new_file.
1202
 
 
1203
 
        Contents is an iterator of strings, all of which will be written
1204
 
        to the target destination.
1205
 
 
1206
 
        New file takes the permissions of any existing file with that id,
1207
 
        unless mode_id is specified.
 
1303
        :seealso: new_file.
 
1304
 
 
1305
        :param contents: an iterator of strings, all of which will be written
 
1306
            to the target destination.
 
1307
        :param trans_id: TreeTransform handle
 
1308
        :param mode_id: If not None, force the mode of the target file to match
 
1309
            the mode of the object referenced by mode_id.
 
1310
            Otherwise, we will try to preserve mode bits of an existing file.
 
1311
        :param sha1: If the sha1 of this content is already known, pass it in.
 
1312
            We can use it to prevent future sha1 computations.
1208
1313
        """
1209
1314
        name = self._limbo_name(trans_id)
1210
1315
        f = open(name, 'wb')
1211
1316
        try:
1212
 
            try:
1213
 
                unique_add(self._new_contents, trans_id, 'file')
1214
 
            except:
1215
 
                # Clean up the file, it never got registered so
1216
 
                # TreeTransform.finalize() won't clean it up.
1217
 
                f.close()
1218
 
                os.unlink(name)
1219
 
                raise
1220
 
 
 
1317
            unique_add(self._new_contents, trans_id, 'file')
1221
1318
            f.writelines(contents)
1222
1319
        finally:
1223
1320
            f.close()
1224
1321
        self._set_mtime(name)
1225
1322
        self._set_mode(trans_id, mode_id, S_ISREG)
 
1323
        # It is unfortunate we have to use lstat instead of fstat, but we just
 
1324
        # used utime and chmod on the file, so we need the accurate final
 
1325
        # details.
 
1326
        if sha1 is not None:
 
1327
            self._observed_sha1s[trans_id] = (sha1, osutils.lstat(name))
1226
1328
 
1227
1329
    def _read_file_chunks(self, trans_id):
1228
1330
        cur_file = open(self._limbo_name(trans_id), 'rb')
1248
1350
        name = self._limbo_name(trans_id)
1249
1351
        try:
1250
1352
            os.link(path, name)
1251
 
        except OSError, e:
 
1353
        except OSError as e:
1252
1354
            if e.errno != errno.EPERM:
1253
1355
                raise
1254
1356
            raise errors.HardLinkNotSupported(path)
1287
1389
    def cancel_creation(self, trans_id):
1288
1390
        """Cancel the creation of new file contents."""
1289
1391
        del self._new_contents[trans_id]
 
1392
        if trans_id in self._observed_sha1s:
 
1393
            del self._observed_sha1s[trans_id]
1290
1394
        children = self._limbo_children.get(trans_id)
1291
1395
        # if this is a limbo directory with children, move them before removing
1292
1396
        # the directory
1296
1400
            del self._limbo_children_names[trans_id]
1297
1401
        delete_any(self._limbo_name(trans_id))
1298
1402
 
 
1403
    def new_orphan(self, trans_id, parent_id):
 
1404
        conf = self._tree.get_config_stack()
 
1405
        handle_orphan = conf.get('bzr.transform.orphan_policy')
 
1406
        handle_orphan(self, trans_id, parent_id)
 
1407
 
 
1408
 
 
1409
class OrphaningError(errors.BzrError):
 
1410
 
 
1411
    # Only bugs could lead to such exception being seen by the user
 
1412
    internal_error = True
 
1413
    _fmt = "Error while orphaning %s in %s directory"
 
1414
 
 
1415
    def __init__(self, orphan, parent):
 
1416
        errors.BzrError.__init__(self)
 
1417
        self.orphan = orphan
 
1418
        self.parent = parent
 
1419
 
 
1420
 
 
1421
class OrphaningForbidden(OrphaningError):
 
1422
 
 
1423
    _fmt = "Policy: %s doesn't allow creating orphans."
 
1424
 
 
1425
    def __init__(self, policy):
 
1426
        errors.BzrError.__init__(self)
 
1427
        self.policy = policy
 
1428
 
 
1429
 
 
1430
def move_orphan(tt, orphan_id, parent_id):
 
1431
    """See TreeTransformBase.new_orphan.
 
1432
 
 
1433
    This creates a new orphan in the `bzr-orphans` dir at the root of the
 
1434
    `TreeTransform`.
 
1435
 
 
1436
    :param tt: The TreeTransform orphaning `trans_id`.
 
1437
 
 
1438
    :param orphan_id: The trans id that should be orphaned.
 
1439
 
 
1440
    :param parent_id: The orphan parent trans id.
 
1441
    """
 
1442
    # Add the orphan dir if it doesn't exist
 
1443
    orphan_dir_basename = 'bzr-orphans'
 
1444
    od_id = tt.trans_id_tree_path(orphan_dir_basename)
 
1445
    if tt.final_kind(od_id) is None:
 
1446
        tt.create_directory(od_id)
 
1447
    parent_path = tt._tree_id_paths[parent_id]
 
1448
    # Find a name that doesn't exist yet in the orphan dir
 
1449
    actual_name = tt.final_name(orphan_id)
 
1450
    new_name = tt._available_backup_name(actual_name, od_id)
 
1451
    tt.adjust_path(new_name, od_id, orphan_id)
 
1452
    trace.warning('%s has been orphaned in %s'
 
1453
                  % (joinpath(parent_path, actual_name), orphan_dir_basename))
 
1454
 
 
1455
 
 
1456
def refuse_orphan(tt, orphan_id, parent_id):
 
1457
    """See TreeTransformBase.new_orphan.
 
1458
 
 
1459
    This refuses to create orphan, letting the caller handle the conflict.
 
1460
    """
 
1461
    raise OrphaningForbidden('never')
 
1462
 
 
1463
 
 
1464
orphaning_registry = registry.Registry()
 
1465
orphaning_registry.register(
 
1466
    'conflict', refuse_orphan,
 
1467
    'Leave orphans in place and create a conflict on the directory.')
 
1468
orphaning_registry.register(
 
1469
    'move', move_orphan,
 
1470
    'Move orphans into the bzr-orphans directory.')
 
1471
orphaning_registry._set_default_key('conflict')
 
1472
 
 
1473
 
 
1474
opt_transform_orphan = _mod_config.RegistryOption(
 
1475
    'bzr.transform.orphan_policy', orphaning_registry,
 
1476
    help='Policy for orphaned files during transform operations.',
 
1477
    invalid='warning')
 
1478
 
1299
1479
 
1300
1480
class TreeTransform(DiskTreeTransform):
1301
1481
    """Represent a tree transformation.
1373
1553
        try:
1374
1554
            limbodir = urlutils.local_path_from_url(
1375
1555
                tree._transport.abspath('limbo'))
1376
 
            try:
1377
 
                os.mkdir(limbodir)
1378
 
            except OSError, e:
1379
 
                if e.errno == errno.EEXIST:
1380
 
                    raise ExistingLimbo(limbodir)
 
1556
            osutils.ensure_empty_directory_exists(
 
1557
                limbodir,
 
1558
                errors.ExistingLimbo)
1381
1559
            deletiondir = urlutils.local_path_from_url(
1382
1560
                tree._transport.abspath('pending-deletion'))
1383
 
            try:
1384
 
                os.mkdir(deletiondir)
1385
 
            except OSError, e:
1386
 
                if e.errno == errno.EEXIST:
1387
 
                    raise errors.ExistingPendingDeletion(deletiondir)
 
1561
            osutils.ensure_empty_directory_exists(
 
1562
                deletiondir,
 
1563
                errors.ExistingPendingDeletion)
1388
1564
        except:
1389
1565
            tree.unlock()
1390
1566
            raise
1419
1595
    def tree_kind(self, trans_id):
1420
1596
        """Determine the file kind in the working tree.
1421
1597
 
1422
 
        Raises NoSuchFile if the file does not exist
 
1598
        :returns: The file kind or None if the file does not exist
1423
1599
        """
1424
1600
        path = self._tree_id_paths.get(trans_id)
1425
1601
        if path is None:
1426
 
            raise NoSuchFile(None)
 
1602
            return None
1427
1603
        try:
1428
1604
            return file_kind(self._tree.abspath(path))
1429
 
        except OSError, e:
1430
 
            if e.errno != errno.ENOENT:
1431
 
                raise
1432
 
            else:
1433
 
                raise NoSuchFile(path)
 
1605
        except errors.NoSuchFile:
 
1606
            return None
1434
1607
 
1435
1608
    def _set_mode(self, trans_id, mode_id, typefunc):
1436
1609
        """Set the mode of new file contents.
1446
1619
            return
1447
1620
        try:
1448
1621
            mode = os.stat(self._tree.abspath(old_path)).st_mode
1449
 
        except OSError, e:
 
1622
        except OSError as e:
1450
1623
            if e.errno in (errno.ENOENT, errno.ENOTDIR):
1451
1624
                # Either old_path doesn't exist, or the parent of the
1452
1625
                # target is not a directory (but will be one eventually)
1456
1629
            else:
1457
1630
                raise
1458
1631
        if typefunc(mode):
1459
 
            os.chmod(self._limbo_name(trans_id), mode)
 
1632
            osutils.chmod_if_possible(self._limbo_name(trans_id), mode)
1460
1633
 
1461
1634
    def iter_tree_children(self, parent_id):
1462
1635
        """Iterate through the entry's tree children, if any"""
1466
1639
            return
1467
1640
        try:
1468
1641
            children = os.listdir(self._tree.abspath(path))
1469
 
        except OSError, e:
 
1642
        except OSError as e:
1470
1643
            if not (osutils._is_error_enotdir(e)
1471
1644
                    or e.errno in (errno.ENOENT, errno.ESRCH)):
1472
1645
                raise
1508
1681
                        in (trans_id, None)):
1509
1682
                        use_direct_path = True
1510
1683
                else:
1511
 
                    for l_filename, l_trans_id in\
1512
 
                        self._limbo_children_names[parent].iteritems():
 
1684
                    for l_filename, l_trans_id in viewitems(
 
1685
                            self._limbo_children_names[parent]):
1513
1686
                        if l_trans_id == trans_id:
1514
1687
                            continue
1515
1688
                        if l_filename.lower() == filename.lower():
1540
1713
            calculating one.
1541
1714
        :param _mover: Supply an alternate FileMover, for testing
1542
1715
        """
 
1716
        for hook in MutableTree.hooks['pre_transform']:
 
1717
            hook(self._tree, self)
1543
1718
        if not no_conflicts:
1544
1719
            self._check_malformed()
1545
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1720
        child_pb = ui.ui_factory.nested_progress_bar()
1546
1721
        try:
1547
1722
            if precomputed_delta is None:
1548
 
                child_pb.update('Apply phase', 0, 2)
 
1723
                child_pb.update(gettext('Apply phase'), 0, 2)
1549
1724
                inventory_delta = self._generate_inventory_delta()
1550
1725
                offset = 1
1551
1726
            else:
1556
1731
            else:
1557
1732
                mover = _mover
1558
1733
            try:
1559
 
                child_pb.update('Apply phase', 0 + offset, 2 + offset)
 
1734
                child_pb.update(gettext('Apply phase'), 0 + offset, 2 + offset)
1560
1735
                self._apply_removals(mover)
1561
 
                child_pb.update('Apply phase', 1 + offset, 2 + offset)
 
1736
                child_pb.update(gettext('Apply phase'), 1 + offset, 2 + offset)
1562
1737
                modified_paths = self._apply_insertions(mover)
1563
1738
            except:
1564
1739
                mover.rollback()
1567
1742
                mover.apply_deletions()
1568
1743
        finally:
1569
1744
            child_pb.finished()
 
1745
        if self.final_file_id(self.root) is None:
 
1746
            inventory_delta = [e for e in inventory_delta if e[0] != '']
1570
1747
        self._tree.apply_inventory_delta(inventory_delta)
 
1748
        self._apply_observed_sha1s()
1571
1749
        self._done = True
1572
1750
        self.finalize()
1573
1751
        return _TransformResults(modified_paths, self.rename_count)
1575
1753
    def _generate_inventory_delta(self):
1576
1754
        """Generate an inventory delta for the current transform."""
1577
1755
        inventory_delta = []
1578
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1756
        child_pb = ui.ui_factory.nested_progress_bar()
1579
1757
        new_paths = self._inventory_altered()
1580
1758
        total_entries = len(new_paths) + len(self._removed_id)
1581
1759
        try:
1582
1760
            for num, trans_id in enumerate(self._removed_id):
1583
1761
                if (num % 10) == 0:
1584
 
                    child_pb.update('removing file', num, total_entries)
 
1762
                    child_pb.update(gettext('removing file'), num, total_entries)
1585
1763
                if trans_id == self._new_root:
1586
1764
                    file_id = self._tree.get_root_id()
1587
1765
                else:
1594
1772
            new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1595
1773
                                     new_paths)
1596
1774
            entries = self._tree.iter_entries_by_dir(
1597
 
                new_path_file_ids.values())
 
1775
                viewvalues(new_path_file_ids))
1598
1776
            old_paths = dict((e.file_id, p) for p, e in entries)
1599
1777
            final_kinds = {}
1600
1778
            for num, (path, trans_id) in enumerate(new_paths):
1601
1779
                if (num % 10) == 0:
1602
 
                    child_pb.update('adding file',
 
1780
                    child_pb.update(gettext('adding file'),
1603
1781
                                    num + len(self._removed_id), total_entries)
1604
1782
                file_id = new_path_file_ids[trans_id]
1605
1783
                if file_id is None:
1606
1784
                    continue
1607
1785
                needs_entry = False
1608
 
                try:
1609
 
                    kind = self.final_kind(trans_id)
1610
 
                except NoSuchFile:
 
1786
                kind = self.final_kind(trans_id)
 
1787
                if kind is None:
1611
1788
                    kind = self._tree.stored_kind(file_id)
1612
1789
                parent_trans_id = self.final_parent(trans_id)
1613
1790
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1642
1819
 
1643
1820
        If inventory_delta is None, no inventory delta generation is performed.
1644
1821
        """
1645
 
        tree_paths = list(self._tree_path_ids.iteritems())
1646
 
        tree_paths.sort(reverse=True)
1647
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1822
        tree_paths = sorted(viewitems(self._tree_path_ids), reverse=True)
 
1823
        child_pb = ui.ui_factory.nested_progress_bar()
1648
1824
        try:
1649
 
            for num, data in enumerate(tree_paths):
1650
 
                path, trans_id = data
1651
 
                child_pb.update('removing file', num, len(tree_paths))
 
1825
            for num, (path, trans_id) in enumerate(tree_paths):
 
1826
                # do not attempt to move root into a subdirectory of itself.
 
1827
                if path == '':
 
1828
                    continue
 
1829
                child_pb.update(gettext('removing file'), num, len(tree_paths))
1652
1830
                full_path = self._tree.abspath(path)
1653
1831
                if trans_id in self._removed_contents:
1654
1832
                    delete_path = os.path.join(self._deletiondir, trans_id)
1657
1835
                      or trans_id in self._new_parent):
1658
1836
                    try:
1659
1837
                        mover.rename(full_path, self._limbo_name(trans_id))
1660
 
                    except OSError, e:
 
1838
                    except errors.TransformRenameFailed as e:
1661
1839
                        if e.errno != errno.ENOENT:
1662
1840
                            raise
1663
1841
                    else:
1679
1857
        modified_paths = []
1680
1858
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1681
1859
                                 new_paths)
1682
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1860
        child_pb = ui.ui_factory.nested_progress_bar()
1683
1861
        try:
1684
1862
            for num, (path, trans_id) in enumerate(new_paths):
1685
1863
                if (num % 10) == 0:
1686
 
                    child_pb.update('adding file', num, len(new_paths))
 
1864
                    child_pb.update(gettext('adding file'), num, len(new_paths))
1687
1865
                full_path = self._tree.abspath(path)
1688
1866
                if trans_id in self._needs_rename:
1689
1867
                    try:
1690
1868
                        mover.rename(self._limbo_name(trans_id), full_path)
1691
 
                    except OSError, e:
 
1869
                    except errors.TransformRenameFailed as e:
1692
1870
                        # We may be renaming a dangling inventory id
1693
1871
                        if e.errno != errno.ENOENT:
1694
1872
                            raise
1695
1873
                    else:
1696
1874
                        self.rename_count += 1
 
1875
                    # TODO: if trans_id in self._observed_sha1s, we should
 
1876
                    #       re-stat the final target, since ctime will be
 
1877
                    #       updated by the change.
1697
1878
                if (trans_id in self._new_contents or
1698
1879
                    self.path_changed(trans_id)):
1699
1880
                    if trans_id in self._new_contents:
1700
1881
                        modified_paths.append(full_path)
1701
1882
                if trans_id in self._new_executability:
1702
1883
                    self._set_executability(path, trans_id)
 
1884
                if trans_id in self._observed_sha1s:
 
1885
                    o_sha1, o_st_val = self._observed_sha1s[trans_id]
 
1886
                    st = osutils.lstat(full_path)
 
1887
                    self._observed_sha1s[trans_id] = (o_sha1, st)
1703
1888
        finally:
1704
1889
            child_pb.finished()
 
1890
        for path, trans_id in new_paths:
 
1891
            # new_paths includes stuff like workingtree conflicts. Only the
 
1892
            # stuff in new_contents actually comes from limbo.
 
1893
            if trans_id in self._limbo_files:
 
1894
                del self._limbo_files[trans_id]
1705
1895
        self._new_contents.clear()
1706
1896
        return modified_paths
1707
1897
 
 
1898
    def _apply_observed_sha1s(self):
 
1899
        """After we have finished renaming everything, update observed sha1s
 
1900
 
 
1901
        This has to be done after self._tree.apply_inventory_delta, otherwise
 
1902
        it doesn't know anything about the files we are updating. Also, we want
 
1903
        to do this as late as possible, so that most entries end up cached.
 
1904
        """
 
1905
        # TODO: this doesn't update the stat information for directories. So
 
1906
        #       the first 'bzr status' will still need to rewrite
 
1907
        #       .bzr/checkout/dirstate. However, we at least don't need to
 
1908
        #       re-read all of the files.
 
1909
        # TODO: If the operation took a while, we could do a time.sleep(3) here
 
1910
        #       to allow the clock to tick over and ensure we won't have any
 
1911
        #       problems. (we could observe start time, and finish time, and if
 
1912
        #       it is less than eg 10% overhead, add a sleep call.)
 
1913
        paths = FinalPaths(self)
 
1914
        for trans_id, observed in viewitems(self._observed_sha1s):
 
1915
            path = paths.get_path(trans_id)
 
1916
            # We could get the file_id, but dirstate prefers to use the path
 
1917
            # anyway, and it is 'cheaper' to determine.
 
1918
            # file_id = self._new_id[trans_id]
 
1919
            self._tree._observed_sha1(None, path, observed)
 
1920
 
1708
1921
 
1709
1922
class TransformPreview(DiskTreeTransform):
1710
1923
    """A TreeTransform for generating preview trees.
1725
1938
    def tree_kind(self, trans_id):
1726
1939
        path = self._tree_id_paths.get(trans_id)
1727
1940
        if path is None:
1728
 
            raise NoSuchFile(None)
1729
 
        file_id = self._tree.path2id(path)
1730
 
        return self._tree.kind(file_id)
 
1941
            return None
 
1942
        kind = self._tree.path_content_summary(path)[0]
 
1943
        if kind == 'missing':
 
1944
            kind = None
 
1945
        return kind
1731
1946
 
1732
1947
    def _set_mode(self, trans_id, mode_id, typefunc):
1733
1948
        """Set the mode of new file contents.
1753
1968
            childpath = joinpath(path, child)
1754
1969
            yield self.trans_id_tree_path(childpath)
1755
1970
 
1756
 
 
1757
 
class _PreviewTree(tree.Tree):
 
1971
    def new_orphan(self, trans_id, parent_id):
 
1972
        raise NotImplementedError(self.new_orphan)
 
1973
 
 
1974
 
 
1975
class _PreviewTree(inventorytree.InventoryTree):
1758
1976
    """Partial implementation of Tree to support show_diff_trees"""
1759
1977
 
1760
1978
    def __init__(self, transform):
1789
2007
                yield self._get_repository().revision_tree(revision_id)
1790
2008
 
1791
2009
    def _get_file_revision(self, file_id, vf, tree_revision):
1792
 
        parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
 
2010
        parent_keys = [(file_id, t.get_file_revision(file_id)) for t in
1793
2011
                       self._iter_parent_trees()]
1794
2012
        vf.add_lines((file_id, tree_revision), parent_keys,
1795
 
                     self.get_file(file_id).readlines())
 
2013
                     self.get_file_lines(file_id))
1796
2014
        repo = self._get_repository()
1797
2015
        base_vf = repo.texts
1798
2016
        if base_vf not in vf.fallback_versionedfiles:
1799
2017
            vf.fallback_versionedfiles.append(base_vf)
1800
2018
        return tree_revision
1801
2019
 
1802
 
    def _stat_limbo_file(self, file_id):
1803
 
        trans_id = self._transform.trans_id_file_id(file_id)
 
2020
    def _stat_limbo_file(self, file_id=None, trans_id=None):
 
2021
        if trans_id is None:
 
2022
            trans_id = self._transform.trans_id_file_id(file_id)
1804
2023
        name = self._transform._limbo_name(trans_id)
1805
2024
        return os.lstat(name)
1806
2025
 
1831
2050
        pass
1832
2051
 
1833
2052
    @property
1834
 
    def inventory(self):
 
2053
    def root_inventory(self):
1835
2054
        """This Tree does not use inventory as its backing data."""
1836
 
        raise NotImplementedError(_PreviewTree.inventory)
 
2055
        raise NotImplementedError(_PreviewTree.root_inventory)
1837
2056
 
1838
2057
    def get_root_id(self):
1839
2058
        return self._transform.final_file_id(self._transform.root)
1842
2061
        tree_ids = set(self._transform._tree.all_file_ids())
1843
2062
        tree_ids.difference_update(self._transform.tree_file_id(t)
1844
2063
                                   for t in self._transform._removed_id)
1845
 
        tree_ids.update(self._transform._new_id.values())
 
2064
        tree_ids.update(viewvalues(self._transform._new_id))
1846
2065
        return tree_ids
1847
2066
 
1848
2067
    def __iter__(self):
1851
2070
    def _has_id(self, file_id, fallback_check):
1852
2071
        if file_id in self._transform._r_new_id:
1853
2072
            return True
1854
 
        elif file_id in set([self._transform.tree_file_id(trans_id) for
1855
 
            trans_id in self._transform._removed_id]):
 
2073
        elif file_id in {self._transform.tree_file_id(trans_id) for
 
2074
            trans_id in self._transform._removed_id}:
1856
2075
            return False
1857
2076
        else:
1858
2077
            return fallback_check(file_id)
1886
2105
        return cur_parent
1887
2106
 
1888
2107
    def path2id(self, path):
 
2108
        if isinstance(path, list):
 
2109
            if path == []:
 
2110
                path = [""]
 
2111
            path = osutils.pathjoin(*path)
1889
2112
        return self._transform.final_file_id(self._path2trans_id(path))
1890
2113
 
1891
2114
    def id2path(self, file_id):
1901
2124
            return children
1902
2125
        children = set(self._transform.iter_tree_children(trans_id))
1903
2126
        # children in the _new_parent set are provided by _by_parent.
1904
 
        children.difference_update(self._transform._new_parent.keys())
 
2127
        children.difference_update(self._transform._new_parent)
1905
2128
        children.update(self._by_parent.get(trans_id, []))
1906
2129
        self._all_children_cache[trans_id] = children
1907
2130
        return children
1929
2152
            if (specific_file_ids is not None
1930
2153
                and file_id not in specific_file_ids):
1931
2154
                continue
1932
 
            try:
1933
 
                kind = self._transform.final_kind(trans_id)
1934
 
            except NoSuchFile:
 
2155
            kind = self._transform.final_kind(trans_id)
 
2156
            if kind is None:
1935
2157
                kind = self._transform._tree.stored_kind(file_id)
1936
2158
            new_entry = inventory.make_entry(
1937
2159
                kind,
1953
2175
                ordered_ids.append((trans_id, parent_file_id))
1954
2176
        return ordered_ids
1955
2177
 
 
2178
    def iter_child_entries(self, file_id, path=None):
 
2179
        self.id2path(file_id)
 
2180
        trans_id = self._transform.trans_id_file_id(file_id)
 
2181
        todo = [(child_trans_id, trans_id) for child_trans_id in
 
2182
                self._all_children(trans_id)]
 
2183
        for entry, trans_id in self._make_inv_entries(todo):
 
2184
            yield entry
 
2185
 
1956
2186
    def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1957
2187
        # This may not be a maximally efficient implementation, but it is
1958
2188
        # reasonably straightforward.  An implementation that grafts the
2022
2252
 
2023
2253
    def get_file_size(self, file_id):
2024
2254
        """See Tree.get_file_size"""
 
2255
        trans_id = self._transform.trans_id_file_id(file_id)
 
2256
        kind = self._transform.final_kind(trans_id)
 
2257
        if kind != 'file':
 
2258
            return None
 
2259
        if trans_id in self._transform._new_contents:
 
2260
            return self._stat_limbo_file(trans_id=trans_id).st_size
2025
2261
        if self.kind(file_id) == 'file':
2026
2262
            return self._transform._tree.get_file_size(file_id)
2027
2263
        else:
2028
2264
            return None
2029
2265
 
 
2266
    def get_file_verifier(self, file_id, path=None, stat_value=None):
 
2267
        trans_id = self._transform.trans_id_file_id(file_id)
 
2268
        kind = self._transform._new_contents.get(trans_id)
 
2269
        if kind is None:
 
2270
            return self._transform._tree.get_file_verifier(file_id)
 
2271
        if kind == 'file':
 
2272
            fileobj = self.get_file(file_id)
 
2273
            try:
 
2274
                return ("SHA1", sha_file(fileobj))
 
2275
            finally:
 
2276
                fileobj.close()
 
2277
 
2030
2278
    def get_file_sha1(self, file_id, path=None, stat_value=None):
2031
2279
        trans_id = self._transform.trans_id_file_id(file_id)
2032
2280
        kind = self._transform._new_contents.get(trans_id)
2048
2296
        except KeyError:
2049
2297
            try:
2050
2298
                return self._transform._tree.is_executable(file_id, path)
2051
 
            except OSError, e:
 
2299
            except OSError as e:
2052
2300
                if e.errno == errno.ENOENT:
2053
2301
                    return False
2054
2302
                raise
2055
2303
            except errors.NoSuchId:
2056
2304
                return False
2057
2305
 
 
2306
    def has_filename(self, path):
 
2307
        trans_id = self._path2trans_id(path)
 
2308
        if trans_id in self._transform._new_contents:
 
2309
            return True
 
2310
        elif trans_id in self._transform._removed_contents:
 
2311
            return False
 
2312
        else:
 
2313
            return self._transform._tree.has_filename(path)
 
2314
 
2058
2315
    def path_content_summary(self, path):
2059
2316
        trans_id = self._path2trans_id(path)
2060
2317
        tt = self._transform
2073
2330
            if kind == 'file':
2074
2331
                statval = os.lstat(limbo_name)
2075
2332
                size = statval.st_size
2076
 
                if not supports_executable():
 
2333
                if not tt._limbo_supports_executable():
2077
2334
                    executable = False
2078
2335
                else:
2079
2336
                    executable = statval.st_mode & S_IEXEC
2148
2405
                                   self.get_file(file_id).readlines(),
2149
2406
                                   default_revision)
2150
2407
 
2151
 
    def get_symlink_target(self, file_id):
 
2408
    def get_symlink_target(self, file_id, path=None):
2152
2409
        """See Tree.get_symlink_target"""
2153
2410
        if not self._content_change(file_id):
2154
2411
            return self._transform._tree.get_symlink_target(file_id)
2169
2426
                path_from_root = self._final_paths.get_path(child_id)
2170
2427
                basename = self._transform.final_name(child_id)
2171
2428
                file_id = self._transform.final_file_id(child_id)
2172
 
                try:
2173
 
                    kind = self._transform.final_kind(child_id)
 
2429
                kind  = self._transform.final_kind(child_id)
 
2430
                if kind is not None:
2174
2431
                    versioned_kind = kind
2175
 
                except NoSuchFile:
 
2432
                else:
2176
2433
                    kind = 'unknown'
2177
2434
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2178
2435
                if versioned_kind == 'directory':
2291
2548
    for num, _unused in enumerate(wt.all_file_ids()):
2292
2549
        if num > 0:  # more than just a root
2293
2550
            raise errors.WorkingTreeAlreadyPopulated(base=wt.basedir)
2294
 
    existing_files = set()
2295
 
    for dir, files in wt.walkdirs():
2296
 
        existing_files.update(f[0] for f in files)
2297
2551
    file_trans_id = {}
2298
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2552
    top_pb = ui.ui_factory.nested_progress_bar()
2299
2553
    pp = ProgressPhase("Build phase", 2, top_pb)
2300
 
    if tree.inventory.root is not None:
 
2554
    if tree.get_root_id() is not None:
2301
2555
        # This is kind of a hack: we should be altering the root
2302
2556
        # as part of the regular tree shape diff logic.
2303
2557
        # The conditional test here is to avoid doing an
2314
2568
        pp.next_phase()
2315
2569
        file_trans_id[wt.get_root_id()] = \
2316
2570
            tt.trans_id_tree_file_id(wt.get_root_id())
2317
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2571
        pb = ui.ui_factory.nested_progress_bar()
2318
2572
        try:
2319
2573
            deferred_contents = []
2320
2574
            num = 0
2321
 
            total = len(tree.inventory)
 
2575
            total = len(tree.all_file_ids())
2322
2576
            if delta_from_tree:
2323
2577
                precomputed_delta = []
2324
2578
            else:
2325
2579
                precomputed_delta = None
 
2580
            # Check if tree inventory has content. If so, we populate
 
2581
            # existing_files with the directory content. If there are no
 
2582
            # entries we skip populating existing_files as its not used.
 
2583
            # This improves performance and unncessary work on large
 
2584
            # directory trees. (#501307)
 
2585
            if total > 0:
 
2586
                existing_files = set()
 
2587
                for dir, files in wt.walkdirs():
 
2588
                    existing_files.update(f[0] for f in files)
2326
2589
            for num, (tree_path, entry) in \
2327
 
                enumerate(tree.inventory.iter_entries_by_dir()):
2328
 
                pb.update("Building tree", num - len(deferred_contents), total)
 
2590
                enumerate(tree.iter_entries_by_dir()):
 
2591
                pb.update(gettext("Building tree"), num - len(deferred_contents), total)
2329
2592
                if entry.parent_id is None:
2330
2593
                    continue
2331
2594
                reparent = False
2337
2600
                    kind = file_kind(target_path)
2338
2601
                    if kind == "directory":
2339
2602
                        try:
2340
 
                            bzrdir.BzrDir.open(target_path)
 
2603
                            controldir.ControlDir.open(target_path)
2341
2604
                        except errors.NotBranchError:
2342
2605
                            pass
2343
2606
                        else:
2358
2621
                    executable = tree.is_executable(file_id, tree_path)
2359
2622
                    if executable:
2360
2623
                        tt.set_executability(executable, trans_id)
2361
 
                    trans_data = (trans_id, tree_path)
 
2624
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2362
2625
                    deferred_contents.append((file_id, trans_data))
2363
2626
                else:
2364
2627
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2380
2643
            precomputed_delta = None
2381
2644
        conflicts = cook_conflicts(raw_conflicts, tt)
2382
2645
        for conflict in conflicts:
2383
 
            warning(conflict)
 
2646
            trace.warning(unicode(conflict))
2384
2647
        try:
2385
2648
            wt.add_conflicts(conflicts)
2386
2649
        except errors.UnsupportedOperation:
2405
2668
                     in iter if not (c or e[0] != e[1])]
2406
2669
        if accelerator_tree.supports_content_filtering():
2407
2670
            unchanged = [(f, p) for (f, p) in unchanged
2408
 
                         if not accelerator_tree.iter_search_rules([p]).next()]
 
2671
                         if not next(accelerator_tree.iter_search_rules([p]))]
2409
2672
        unchanged = dict(unchanged)
2410
2673
        new_desired_files = []
2411
2674
        count = 0
2412
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2675
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2413
2676
            accelerator_path = unchanged.get(file_id)
2414
2677
            if accelerator_path is None:
2415
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2678
                new_desired_files.append((file_id,
 
2679
                    (trans_id, tree_path, text_sha1)))
2416
2680
                continue
2417
 
            pb.update('Adding file contents', count + offset, total)
 
2681
            pb.update(gettext('Adding file contents'), count + offset, total)
2418
2682
            if hardlink:
2419
2683
                tt.create_hardlink(accelerator_tree.abspath(accelerator_path),
2420
2684
                                   trans_id)
2425
2689
                    contents = filtered_output_bytes(contents, filters,
2426
2690
                        ContentFilterContext(tree_path, tree))
2427
2691
                try:
2428
 
                    tt.create_file(contents, trans_id)
 
2692
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2429
2693
                finally:
2430
2694
                    try:
2431
2695
                        contents.close()
2434
2698
                        pass
2435
2699
            count += 1
2436
2700
        offset += count
2437
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2701
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2438
2702
            tree.iter_files_bytes(new_desired_files)):
2439
2703
        if wt.supports_content_filtering():
2440
2704
            filters = wt._content_filter_stack(tree_path)
2441
2705
            contents = filtered_output_bytes(contents, filters,
2442
2706
                ContentFilterContext(tree_path, tree))
2443
 
        tt.create_file(contents, trans_id)
2444
 
        pb.update('Adding file contents', count + offset, total)
 
2707
        tt.create_file(contents, trans_id, sha1=text_sha1)
 
2708
        pb.update(gettext('Adding file contents'), count + offset, total)
2445
2709
 
2446
2710
 
2447
2711
def _reparent_children(tt, old_parent, new_parent):
2448
2712
    for child in tt.iter_tree_children(old_parent):
2449
2713
        tt.adjust_path(tt.final_name(child), new_parent, child)
2450
2714
 
 
2715
 
2451
2716
def _reparent_transform_children(tt, old_parent, new_parent):
2452
2717
    by_parent = tt.by_parent()
2453
2718
    for child in by_parent[old_parent]:
2454
2719
        tt.adjust_path(tt.final_name(child), new_parent, child)
2455
2720
    return by_parent[old_parent]
2456
2721
 
 
2722
 
2457
2723
def _content_match(tree, entry, file_id, kind, target_path):
2458
2724
    if entry.kind != kind:
2459
2725
        return False
2460
2726
    if entry.kind == "directory":
2461
2727
        return True
2462
2728
    if entry.kind == "file":
2463
 
        if tree.get_file(file_id).read() == file(target_path, 'rb').read():
2464
 
            return True
 
2729
        f = file(target_path, 'rb')
 
2730
        try:
 
2731
            if tree.get_file_text(file_id) == f.read():
 
2732
                return True
 
2733
        finally:
 
2734
            f.close()
2465
2735
    elif entry.kind == "symlink":
2466
2736
        if tree.get_symlink_target(file_id) == os.readlink(target_path):
2467
2737
            return True
2519
2789
        raise errors.BadFileKindError(name, kind)
2520
2790
 
2521
2791
 
2522
 
@deprecated_function(deprecated_in((1, 9, 0)))
2523
 
def create_by_entry(tt, entry, tree, trans_id, lines=None, mode_id=None):
2524
 
    """Create new file contents according to an inventory entry.
2525
 
 
2526
 
    DEPRECATED.  Use create_from_tree instead.
2527
 
    """
2528
 
    if entry.kind == "file":
2529
 
        if lines is None:
2530
 
            lines = tree.get_file(entry.file_id).readlines()
2531
 
        tt.create_file(lines, trans_id, mode_id=mode_id)
2532
 
    elif entry.kind == "symlink":
2533
 
        tt.create_symlink(tree.get_symlink_target(entry.file_id), trans_id)
2534
 
    elif entry.kind == "directory":
2535
 
        tt.create_directory(trans_id)
2536
 
 
2537
 
 
2538
2792
def create_from_tree(tt, trans_id, tree, file_id, bytes=None,
2539
2793
    filter_tree_path=None):
2540
2794
    """Create new file contents according to tree contents.
2571
2825
        tt.set_executability(entry.executable, trans_id)
2572
2826
 
2573
2827
 
2574
 
def get_backup_name(entry, by_parent, parent_trans_id, tt):
2575
 
    return _get_backup_name(entry.name, by_parent, parent_trans_id, tt)
2576
 
 
2577
 
 
2578
 
def _get_backup_name(name, by_parent, parent_trans_id, tt):
2579
 
    """Produce a backup-style name that appears to be available"""
2580
 
    def name_gen():
2581
 
        counter = 1
2582
 
        while True:
2583
 
            yield "%s.~%d~" % (name, counter)
2584
 
            counter += 1
2585
 
    for new_name in name_gen():
2586
 
        if not tt.has_named_child(by_parent, parent_trans_id, new_name):
2587
 
            return new_name
2588
 
 
2589
 
 
2590
 
def _entry_changes(file_id, entry, working_tree):
2591
 
    """Determine in which ways the inventory entry has changed.
2592
 
 
2593
 
    Returns booleans: has_contents, content_mod, meta_mod
2594
 
    has_contents means there are currently contents, but they differ
2595
 
    contents_mod means contents need to be modified
2596
 
    meta_mod means the metadata needs to be modified
2597
 
    """
2598
 
    cur_entry = working_tree.inventory[file_id]
2599
 
    try:
2600
 
        working_kind = working_tree.kind(file_id)
2601
 
        has_contents = True
2602
 
    except NoSuchFile:
2603
 
        has_contents = False
2604
 
        contents_mod = True
2605
 
        meta_mod = False
2606
 
    if has_contents is True:
2607
 
        if entry.kind != working_kind:
2608
 
            contents_mod, meta_mod = True, False
2609
 
        else:
2610
 
            cur_entry._read_tree_state(working_tree.id2path(file_id),
2611
 
                                       working_tree)
2612
 
            contents_mod, meta_mod = entry.detect_changes(cur_entry)
2613
 
            cur_entry._forget_tree_state()
2614
 
    return has_contents, contents_mod, meta_mod
2615
 
 
2616
 
 
2617
2828
def revert(working_tree, target_tree, filenames, backups=False,
2618
2829
           pb=None, change_reporter=None):
2619
2830
    """Revert a working tree's contents to those of a target tree."""
2629
2840
                unversioned_filter=working_tree.is_ignored)
2630
2841
            delta.report_changes(tt.iter_changes(), change_reporter)
2631
2842
        for conflict in conflicts:
2632
 
            warning(conflict)
 
2843
            trace.warning(unicode(conflict))
2633
2844
        pp.next_phase()
2634
2845
        tt.apply()
2635
2846
        working_tree.set_merge_modified(merge_modified)
2643
2854
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2644
2855
                              backups, pp, basis_tree=None,
2645
2856
                              merge_modified=None):
2646
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2857
    child_pb = ui.ui_factory.nested_progress_bar()
2647
2858
    try:
2648
2859
        if merge_modified is None:
2649
2860
            merge_modified = working_tree.merge_modified()
2652
2863
                                      merge_modified, basis_tree)
2653
2864
    finally:
2654
2865
        child_pb.finished()
2655
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2866
    child_pb = ui.ui_factory.nested_progress_bar()
2656
2867
    try:
2657
2868
        raw_conflicts = resolve_conflicts(tt, child_pb,
2658
2869
            lambda t, c: conflict_pass(t, c, target_tree))
2666
2877
                 backups, merge_modified, basis_tree=None):
2667
2878
    if basis_tree is not None:
2668
2879
        basis_tree.lock_read()
2669
 
    change_list = target_tree.iter_changes(working_tree,
 
2880
    # We ask the working_tree for its changes relative to the target, rather
 
2881
    # than the target changes relative to the working tree. Because WT4 has an
 
2882
    # optimizer to compare itself to a target, but no optimizer for the
 
2883
    # reverse.
 
2884
    change_list = working_tree.iter_changes(target_tree,
2670
2885
        specific_files=specific_files, pb=pb)
2671
2886
    if target_tree.get_root_id() is None:
2672
2887
        skip_root = True
2676
2891
        deferred_files = []
2677
2892
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2678
2893
                kind, executable) in enumerate(change_list):
2679
 
            if skip_root and file_id[0] is not None and parent[0] is None:
 
2894
            target_path, wt_path = path
 
2895
            target_versioned, wt_versioned = versioned
 
2896
            target_parent, wt_parent = parent
 
2897
            target_name, wt_name = name
 
2898
            target_kind, wt_kind = kind
 
2899
            target_executable, wt_executable = executable
 
2900
            if skip_root and wt_parent is None:
2680
2901
                continue
2681
2902
            trans_id = tt.trans_id_file_id(file_id)
2682
2903
            mode_id = None
2683
2904
            if changed_content:
2684
2905
                keep_content = False
2685
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2906
                if wt_kind == 'file' and (backups or target_kind is None):
2686
2907
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2687
2908
                    if merge_modified.get(file_id) != wt_sha1:
2688
2909
                        # acquire the basis tree lazily to prevent the
2691
2912
                        if basis_tree is None:
2692
2913
                            basis_tree = working_tree.basis_tree()
2693
2914
                            basis_tree.lock_read()
2694
 
                        if file_id in basis_tree:
 
2915
                        if basis_tree.has_id(file_id):
2695
2916
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2696
2917
                                keep_content = True
2697
 
                        elif kind[1] is None and not versioned[1]:
 
2918
                        elif target_kind is None and not target_versioned:
2698
2919
                            keep_content = True
2699
 
                if kind[0] is not None:
 
2920
                if wt_kind is not None:
2700
2921
                    if not keep_content:
2701
2922
                        tt.delete_contents(trans_id)
2702
 
                    elif kind[1] is not None:
2703
 
                        parent_trans_id = tt.trans_id_file_id(parent[0])
2704
 
                        by_parent = tt.by_parent()
2705
 
                        backup_name = _get_backup_name(name[0], by_parent,
2706
 
                                                       parent_trans_id, tt)
 
2923
                    elif target_kind is not None:
 
2924
                        parent_trans_id = tt.trans_id_file_id(wt_parent)
 
2925
                        backup_name = tt._available_backup_name(
 
2926
                            wt_name, parent_trans_id)
2707
2927
                        tt.adjust_path(backup_name, parent_trans_id, trans_id)
2708
 
                        new_trans_id = tt.create_path(name[0], parent_trans_id)
2709
 
                        if versioned == (True, True):
 
2928
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2929
                        if wt_versioned and target_versioned:
2710
2930
                            tt.unversion_file(trans_id)
2711
2931
                            tt.version_file(file_id, new_trans_id)
2712
2932
                        # New contents should have the same unix perms as old
2713
2933
                        # contents
2714
2934
                        mode_id = trans_id
2715
2935
                        trans_id = new_trans_id
2716
 
                if kind[1] in ('directory', 'tree-reference'):
 
2936
                if target_kind in ('directory', 'tree-reference'):
2717
2937
                    tt.create_directory(trans_id)
2718
 
                    if kind[1] == 'tree-reference':
 
2938
                    if target_kind == 'tree-reference':
2719
2939
                        revision = target_tree.get_reference_revision(file_id,
2720
 
                                                                      path[1])
 
2940
                                                                      target_path)
2721
2941
                        tt.set_tree_reference(revision, trans_id)
2722
 
                elif kind[1] == 'symlink':
 
2942
                elif target_kind == 'symlink':
2723
2943
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2724
2944
                                      trans_id)
2725
 
                elif kind[1] == 'file':
 
2945
                elif target_kind == 'file':
2726
2946
                    deferred_files.append((file_id, (trans_id, mode_id)))
2727
2947
                    if basis_tree is None:
2728
2948
                        basis_tree = working_tree.basis_tree()
2729
2949
                        basis_tree.lock_read()
2730
2950
                    new_sha1 = target_tree.get_file_sha1(file_id)
2731
 
                    if (file_id in basis_tree and new_sha1 ==
2732
 
                        basis_tree.get_file_sha1(file_id)):
 
2951
                    if (basis_tree.has_id(file_id) and
 
2952
                        new_sha1 == basis_tree.get_file_sha1(file_id)):
2733
2953
                        if file_id in merge_modified:
2734
2954
                            del merge_modified[file_id]
2735
2955
                    else:
2736
2956
                        merge_modified[file_id] = new_sha1
2737
2957
 
2738
2958
                    # preserve the execute bit when backing up
2739
 
                    if keep_content and executable[0] == executable[1]:
2740
 
                        tt.set_executability(executable[1], trans_id)
2741
 
                elif kind[1] is not None:
2742
 
                    raise AssertionError(kind[1])
2743
 
            if versioned == (False, True):
 
2959
                    if keep_content and wt_executable == target_executable:
 
2960
                        tt.set_executability(target_executable, trans_id)
 
2961
                elif target_kind is not None:
 
2962
                    raise AssertionError(target_kind)
 
2963
            if not wt_versioned and target_versioned:
2744
2964
                tt.version_file(file_id, trans_id)
2745
 
            if versioned == (True, False):
 
2965
            if wt_versioned and not target_versioned:
2746
2966
                tt.unversion_file(trans_id)
2747
 
            if (name[1] is not None and
2748
 
                (name[0] != name[1] or parent[0] != parent[1])):
2749
 
                if name[1] == '' and parent[1] is None:
 
2967
            if (target_name is not None and
 
2968
                (wt_name != target_name or wt_parent != target_parent)):
 
2969
                if target_name == '' and target_parent is None:
2750
2970
                    parent_trans = ROOT_PARENT
2751
2971
                else:
2752
 
                    parent_trans = tt.trans_id_file_id(parent[1])
2753
 
                if parent[0] is None and versioned[0]:
2754
 
                    tt.adjust_root_path(name[1], parent_trans)
 
2972
                    parent_trans = tt.trans_id_file_id(target_parent)
 
2973
                if wt_parent is None and wt_versioned:
 
2974
                    tt.adjust_root_path(target_name, parent_trans)
2755
2975
                else:
2756
 
                    tt.adjust_path(name[1], parent_trans, trans_id)
2757
 
            if executable[0] != executable[1] and kind[1] == "file":
2758
 
                tt.set_executability(executable[1], trans_id)
 
2976
                    tt.adjust_path(target_name, parent_trans, trans_id)
 
2977
            if wt_executable != target_executable and target_kind == "file":
 
2978
                tt.set_executability(target_executable, trans_id)
2759
2979
        if working_tree.supports_content_filtering():
2760
2980
            for index, ((trans_id, mode_id), bytes) in enumerate(
2761
2981
                target_tree.iter_files_bytes(deferred_files)):
2787
3007
    pb = ui.ui_factory.nested_progress_bar()
2788
3008
    try:
2789
3009
        for n in range(10):
2790
 
            pb.update('Resolution pass', n+1, 10)
 
3010
            pb.update(gettext('Resolution pass'), n+1, 10)
2791
3011
            conflicts = tt.find_conflicts()
2792
3012
            if len(conflicts) == 0:
2793
3013
                return new_conflicts
2817
3037
                existing_file, new_file = conflict[2], conflict[1]
2818
3038
            else:
2819
3039
                existing_file, new_file = conflict[1], conflict[2]
2820
 
            new_name = tt.final_name(existing_file)+'.moved'
 
3040
            new_name = tt.final_name(existing_file) + '.moved'
2821
3041
            tt.adjust_path(new_name, final_parent, existing_file)
2822
3042
            new_conflicts.add((c_type, 'Moved existing file to',
2823
3043
                               existing_file, new_file))
2832
3052
 
2833
3053
        elif c_type == 'missing parent':
2834
3054
            trans_id = conflict[1]
2835
 
            try:
2836
 
                tt.cancel_deletion(trans_id)
2837
 
                new_conflicts.add(('deleting parent', 'Not deleting',
2838
 
                                   trans_id))
2839
 
            except KeyError:
 
3055
            if trans_id in tt._removed_contents:
 
3056
                cancel_deletion = True
 
3057
                orphans = tt._get_potential_orphans(trans_id)
 
3058
                if orphans:
 
3059
                    cancel_deletion = False
 
3060
                    # All children are orphans
 
3061
                    for o in orphans:
 
3062
                        try:
 
3063
                            tt.new_orphan(o, trans_id)
 
3064
                        except OrphaningError:
 
3065
                            # Something bad happened so we cancel the directory
 
3066
                            # deletion which will leave it in place with a
 
3067
                            # conflict. The user can deal with it from there.
 
3068
                            # Note that this also catch the case where we don't
 
3069
                            # want to create orphans and leave the directory in
 
3070
                            # place.
 
3071
                            cancel_deletion = True
 
3072
                            break
 
3073
                if cancel_deletion:
 
3074
                    # Cancel the directory deletion
 
3075
                    tt.cancel_deletion(trans_id)
 
3076
                    new_conflicts.add(('deleting parent', 'Not deleting',
 
3077
                                       trans_id))
 
3078
            else:
2840
3079
                create = True
2841
3080
                try:
2842
3081
                    tt.final_name(trans_id)
2845
3084
                        file_id = tt.final_file_id(trans_id)
2846
3085
                        if file_id is None:
2847
3086
                            file_id = tt.inactive_file_id(trans_id)
2848
 
                        entry = path_tree.inventory[file_id]
 
3087
                        _, entry = next(path_tree.iter_entries_by_dir(
 
3088
                            [file_id]))
2849
3089
                        # special-case the other tree root (move its
2850
3090
                        # children to current root)
2851
3091
                        if entry.parent_id is None:
2866
3106
        elif c_type == 'unversioned parent':
2867
3107
            file_id = tt.inactive_file_id(conflict[1])
2868
3108
            # special-case the other tree root (move its children instead)
2869
 
            if path_tree and file_id in path_tree:
2870
 
                if path_tree.inventory[file_id].parent_id is None:
 
3109
            if path_tree and path_tree.has_id(file_id):
 
3110
                if path_tree.path2id('') == file_id:
 
3111
                    # This is the root entry, skip it
2871
3112
                    continue
2872
3113
            tt.version_file(file_id, conflict[1])
2873
3114
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2889
3130
 
2890
3131
def cook_conflicts(raw_conflicts, tt):
2891
3132
    """Generate a list of cooked conflicts, sorted by file path"""
2892
 
    from bzrlib.conflicts import Conflict
2893
3133
    conflict_iter = iter_cook_conflicts(raw_conflicts, tt)
2894
 
    return sorted(conflict_iter, key=Conflict.sort_key)
 
3134
    return sorted(conflict_iter, key=conflicts.Conflict.sort_key)
2895
3135
 
2896
3136
 
2897
3137
def iter_cook_conflicts(raw_conflicts, tt):
2898
 
    from bzrlib.conflicts import Conflict
2899
3138
    fp = FinalPaths(tt)
2900
3139
    for conflict in raw_conflicts:
2901
3140
        c_type = conflict[0]
2903
3142
        modified_path = fp.get_path(conflict[2])
2904
3143
        modified_id = tt.final_file_id(conflict[2])
2905
3144
        if len(conflict) == 3:
2906
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2907
 
                                     file_id=modified_id)
 
3145
            yield conflicts.Conflict.factory(
 
3146
                c_type, action=action, path=modified_path, file_id=modified_id)
2908
3147
 
2909
3148
        else:
2910
3149
            conflicting_path = fp.get_path(conflict[3])
2911
3150
            conflicting_id = tt.final_file_id(conflict[3])
2912
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2913
 
                                   file_id=modified_id,
2914
 
                                   conflict_path=conflicting_path,
2915
 
                                   conflict_file_id=conflicting_id)
 
3151
            yield conflicts.Conflict.factory(
 
3152
                c_type, action=action, path=modified_path,
 
3153
                file_id=modified_id,
 
3154
                conflict_path=conflicting_path,
 
3155
                conflict_file_id=conflicting_id)
2916
3156
 
2917
3157
 
2918
3158
class _FileMover(object):
2925
3165
    def rename(self, from_, to):
2926
3166
        """Rename a file from one path to another."""
2927
3167
        try:
2928
 
            osutils.rename(from_, to)
2929
 
        except OSError, e:
 
3168
            os.rename(from_, to)
 
3169
        except OSError as e:
2930
3170
            if e.errno in (errno.EEXIST, errno.ENOTEMPTY):
2931
3171
                raise errors.FileExists(to, str(e))
2932
 
            raise
 
3172
            # normal OSError doesn't include filenames so it's hard to see where
 
3173
            # the problem is, see https://bugs.launchpad.net/bzr/+bug/491763
 
3174
            raise errors.TransformRenameFailed(from_, to, str(e), e.errno)
2933
3175
        self.past_renames.append((from_, to))
2934
3176
 
2935
3177
    def pre_delete(self, from_, to):
2945
3187
    def rollback(self):
2946
3188
        """Reverse all renames that have been performed"""
2947
3189
        for from_, to in reversed(self.past_renames):
2948
 
            osutils.rename(to, from_)
 
3190
            try:
 
3191
                os.rename(to, from_)
 
3192
            except OSError as e:
 
3193
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)
2949
3194
        # after rollback, don't reuse _FileMover
2950
3195
        past_renames = None
2951
3196
        pending_deletions = None