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  • Committer: Jelmer Vernooij
  • Date: 2017-06-10 16:40:42 UTC
  • mfrom: (6653.6.7 rename-controldir)
  • mto: This revision was merged to the branch mainline in revision 6690.
  • Revision ID: jelmer@jelmer.uk-20170610164042-zrxqgy2htyduvke2
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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
    lazy_import,
 
28
    registry,
 
29
    trace,
 
30
    tree,
 
31
    )
 
32
lazy_import.lazy_import(globals(), """
 
33
from breezy import (
25
34
    annotate,
26
35
    bencode,
27
 
    bzrdir,
 
36
    controldir,
 
37
    commit,
 
38
    conflicts,
28
39
    delta,
29
 
    errors,
30
 
    inventory,
31
40
    multiparent,
32
41
    osutils,
33
42
    revision as _mod_revision,
34
43
    ui,
35
 
    )
 
44
    urlutils,
 
45
    )
 
46
from breezy.bzr import (
 
47
    inventory,
 
48
    )
 
49
from breezy.i18n import gettext
36
50
""")
37
 
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
38
 
                           ReusingTransform, CantMoveRoot,
39
 
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
40
 
                           UnableCreateSymlink)
41
 
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
42
 
from bzrlib.inventory import InventoryEntry
43
 
from bzrlib.osutils import (
 
51
from .errors import (DuplicateKey, MalformedTransform,
 
52
                     ReusingTransform, CantMoveRoot,
 
53
                     ImmortalLimbo, NoFinalPath,
 
54
                     UnableCreateSymlink)
 
55
from .filters import filtered_output_bytes, ContentFilterContext
 
56
from .mutabletree import MutableTree
 
57
from .osutils import (
44
58
    delete_any,
45
59
    file_kind,
46
60
    has_symlinks,
47
 
    lexists,
48
61
    pathjoin,
49
62
    sha_file,
50
63
    splitpath,
51
 
    supports_executable,
52
 
)
53
 
from bzrlib.progress import ProgressPhase
54
 
from bzrlib.symbol_versioning import (
55
 
        deprecated_function,
56
 
        deprecated_in,
57
 
        )
58
 
from bzrlib.trace import mutter, warning
59
 
from bzrlib import tree
60
 
import bzrlib.ui
61
 
import bzrlib.urlutils as urlutils
 
64
    )
 
65
from .progress import ProgressPhase
 
66
from .sixish import (
 
67
    viewitems,
 
68
    viewvalues,
 
69
    )
62
70
 
63
71
 
64
72
ROOT_PARENT = "root-parent"
65
73
 
66
 
 
67
74
def unique_add(map, key, value):
68
75
    if key in map:
69
76
        raise DuplicateKey(key=key)
70
77
    map[key] = value
71
78
 
72
79
 
 
80
 
73
81
class _TransformResults(object):
74
82
    def __init__(self, modified_paths, rename_count):
75
83
        object.__init__(self)
99
107
        self._new_parent = {}
100
108
        # mapping of trans_id with new contents -> new file_kind
101
109
        self._new_contents = {}
 
110
        # mapping of trans_id => (sha1 of content, stat_value)
 
111
        self._observed_sha1s = {}
102
112
        # Set of trans_ids whose contents will be removed
103
113
        self._removed_contents = set()
104
114
        # Mapping of trans_id -> new execute-bit value
123
133
            self._new_root = self.trans_id_tree_file_id(root_id)
124
134
        else:
125
135
            self._new_root = None
126
 
        # Indictor of whether the transform has been applied
 
136
        # Indicator of whether the transform has been applied
127
137
        self._done = False
128
138
        # A progress bar
129
139
        self._pb = pb
132
142
        # A counter of how many files have been renamed
133
143
        self.rename_count = 0
134
144
 
 
145
    def __enter__(self):
 
146
        """Support Context Manager API."""
 
147
        return self
 
148
 
 
149
    def __exit__(self, exc_type, exc_val, exc_tb):
 
150
        """Support Context Manager API."""
 
151
        self.finalize()
 
152
 
135
153
    def finalize(self):
136
154
        """Release the working tree lock, if held.
137
155
 
140
158
        """
141
159
        if self._tree is None:
142
160
            return
 
161
        for hook in MutableTree.hooks['post_transform']:
 
162
            hook(self._tree, self)
143
163
        self._tree.unlock()
144
164
        self._tree = None
145
165
 
212
232
        This means that the old root trans-id becomes obsolete, so it is
213
233
        recommended only to invoke this after the root trans-id has become
214
234
        irrelevant.
 
235
 
215
236
        """
216
 
        new_roots = [k for k, v in self._new_parent.iteritems() if v is
217
 
                     ROOT_PARENT]
 
237
        new_roots = [k for k, v in viewitems(self._new_parent)
 
238
                     if v == ROOT_PARENT]
218
239
        if len(new_roots) < 1:
219
240
            return
220
241
        if len(new_roots) != 1:
223
244
            self._new_root = new_roots[0]
224
245
            return
225
246
        old_new_root = new_roots[0]
226
 
        # TODO: What to do if a old_new_root is present, but self._new_root is
227
 
        #       not listed as being removed? This code explicitly unversions
228
 
        #       the old root and versions it with the new file_id. Though that
229
 
        #       seems like an incomplete delta
230
 
 
231
247
        # unversion the new root's directory.
232
 
        file_id = self.final_file_id(old_new_root)
 
248
        if self.final_kind(self._new_root) is None:
 
249
            file_id = self.final_file_id(old_new_root)
 
250
        else:
 
251
            file_id = self.final_file_id(self._new_root)
233
252
        if old_new_root in self._new_id:
234
253
            self.cancel_versioning(old_new_root)
235
254
        else:
239
258
        if (self.tree_file_id(self._new_root) is not None and
240
259
            self._new_root not in self._removed_id):
241
260
            self.unversion_file(self._new_root)
242
 
        self.version_file(file_id, self._new_root)
 
261
        if file_id is not None:
 
262
            self.version_file(file_id, self._new_root)
243
263
 
244
264
        # Now move children of new root into old root directory.
245
265
        # Ensure all children are registered with the transaction, but don't
286
306
            return self._r_new_id[file_id]
287
307
        else:
288
308
            try:
289
 
                self._tree.iter_entries_by_dir([file_id]).next()
 
309
                next(self._tree.iter_entries_by_dir([file_id]))
290
310
            except StopIteration:
291
311
                if file_id in self._non_present_ids:
292
312
                    return self._non_present_ids[file_id]
314
334
 
315
335
    def delete_contents(self, trans_id):
316
336
        """Schedule the contents of a path entry for deletion"""
317
 
        # Ensure that the object exists in the WorkingTree, this will raise an
318
 
        # exception if there is a problem
319
 
        self.tree_kind(trans_id)
320
 
        self._removed_contents.add(trans_id)
 
337
        kind = self.tree_kind(trans_id)
 
338
        if kind is not None:
 
339
            self._removed_contents.add(trans_id)
321
340
 
322
341
    def cancel_deletion(self, trans_id):
323
342
        """Cancel a scheduled deletion"""
380
399
        return sorted(FinalPaths(self).get_paths(new_ids))
381
400
 
382
401
    def _inventory_altered(self):
383
 
        """Get the trans_ids and paths of files needing new inv entries."""
384
 
        new_ids = set()
385
 
        for id_set in [self._new_name, self._new_parent, self._new_id,
 
402
        """Determine which trans_ids need new Inventory entries.
 
403
 
 
404
        An new entry is needed when anything that would be reflected by an
 
405
        inventory entry changes, including file name, file_id, parent file_id,
 
406
        file kind, and the execute bit.
 
407
 
 
408
        Some care is taken to return entries with real changes, not cases
 
409
        where the value is deleted and then restored to its original value,
 
410
        but some actually unchanged values may be returned.
 
411
 
 
412
        :returns: A list of (path, trans_id) for all items requiring an
 
413
            inventory change. Ordered by path.
 
414
        """
 
415
        changed_ids = set()
 
416
        # Find entries whose file_ids are new (or changed).
 
417
        new_file_id = set(t for t in self._new_id
 
418
                          if self._new_id[t] != self.tree_file_id(t))
 
419
        for id_set in [self._new_name, self._new_parent, new_file_id,
386
420
                       self._new_executability]:
387
 
            new_ids.update(id_set)
 
421
            changed_ids.update(id_set)
 
422
        # removing implies a kind change
388
423
        changed_kind = set(self._removed_contents)
 
424
        # so does adding
389
425
        changed_kind.intersection_update(self._new_contents)
390
 
        changed_kind.difference_update(new_ids)
391
 
        changed_kind = (t for t in changed_kind if self.tree_kind(t) !=
392
 
                        self.final_kind(t))
393
 
        new_ids.update(changed_kind)
394
 
        return sorted(FinalPaths(self).get_paths(new_ids))
 
426
        # Ignore entries that are already known to have changed.
 
427
        changed_kind.difference_update(changed_ids)
 
428
        #  to keep only the truly changed ones
 
429
        changed_kind = (t for t in changed_kind
 
430
                        if self.tree_kind(t) != self.final_kind(t))
 
431
        # all kind changes will alter the inventory
 
432
        changed_ids.update(changed_kind)
 
433
        # To find entries with changed parent_ids, find parents which existed,
 
434
        # but changed file_id.
 
435
        changed_file_id = set(t for t in new_file_id if t in self._removed_id)
 
436
        # Now add all their children to the set.
 
437
        for parent_trans_id in new_file_id:
 
438
            changed_ids.update(self.iter_tree_children(parent_trans_id))
 
439
        return sorted(FinalPaths(self).get_paths(changed_ids))
395
440
 
396
441
    def final_kind(self, trans_id):
397
442
        """Determine the final file kind, after any changes applied.
398
443
 
399
 
        Raises NoSuchFile if the file does not exist/has no contents.
400
 
        (It is conceivable that a path would be created without the
401
 
        corresponding contents insertion command)
 
444
        :return: None if the file does not exist/has no contents.  (It is
 
445
            conceivable that a path would be created without the corresponding
 
446
            contents insertion command)
402
447
        """
403
448
        if trans_id in self._new_contents:
404
449
            return self._new_contents[trans_id]
405
450
        elif trans_id in self._removed_contents:
406
 
            raise NoSuchFile(None)
 
451
            return None
407
452
        else:
408
453
            return self.tree_kind(trans_id)
409
454
 
440
485
        file_id = self.tree_file_id(trans_id)
441
486
        if file_id is not None:
442
487
            return file_id
443
 
        for key, value in self._non_present_ids.iteritems():
 
488
        for key, value in viewitems(self._non_present_ids):
444
489
            if value == trans_id:
445
490
                return key
446
491
 
470
515
        Only new paths and parents of tree files with assigned ids are used.
471
516
        """
472
517
        by_parent = {}
473
 
        items = list(self._new_parent.iteritems())
474
 
        items.extend((t, self.final_parent(t)) for t in
475
 
                      self._tree_id_paths.keys())
 
518
        items = list(viewitems(self._new_parent))
 
519
        items.extend((t, self.final_parent(t))
 
520
            for t in list(self._tree_id_paths))
476
521
        for trans_id, parent_id in items:
477
522
            if parent_id not in by_parent:
478
523
                by_parent[parent_id] = set()
516
561
        Active parents are those which gain children, and those which are
517
562
        removed.  This is a necessary first step in detecting conflicts.
518
563
        """
519
 
        parents = self.by_parent().keys()
 
564
        parents = list(self.by_parent())
520
565
        parents.extend([t for t in self._removed_contents if
521
566
                        self.tree_kind(t) == 'directory'])
522
567
        for trans_id in self._removed_id:
523
568
            file_id = self.tree_file_id(trans_id)
524
569
            if file_id is not None:
525
 
                if self._tree.inventory[file_id].kind == 'directory':
 
570
                if self._tree.stored_kind(file_id) == 'directory':
526
571
                    parents.append(trans_id)
527
572
            elif self.tree_kind(trans_id) == 'directory':
528
573
                parents.append(trans_id)
531
576
            # ensure that all children are registered with the transaction
532
577
            list(self.iter_tree_children(parent_id))
533
578
 
534
 
    def has_named_child(self, by_parent, parent_id, name):
535
 
        try:
536
 
            children = by_parent[parent_id]
537
 
        except KeyError:
538
 
            children = []
539
 
        for child in children:
 
579
    def _has_named_child(self, name, parent_id, known_children):
 
580
        """Does a parent already have a name child.
 
581
 
 
582
        :param name: The searched for name.
 
583
 
 
584
        :param parent_id: The parent for which the check is made.
 
585
 
 
586
        :param known_children: The already known children. This should have
 
587
            been recently obtained from `self.by_parent.get(parent_id)`
 
588
            (or will be if None is passed).
 
589
        """
 
590
        if known_children is None:
 
591
            known_children = self.by_parent().get(parent_id, [])
 
592
        for child in known_children:
540
593
            if self.final_name(child) == name:
541
594
                return True
542
 
        try:
543
 
            path = self._tree_id_paths[parent_id]
544
 
        except KeyError:
 
595
        parent_path = self._tree_id_paths.get(parent_id, None)
 
596
        if parent_path is None:
 
597
            # No parent... no children
545
598
            return False
546
 
        childpath = joinpath(path, name)
547
 
        child_id = self._tree_path_ids.get(childpath)
 
599
        child_path = joinpath(parent_path, name)
 
600
        child_id = self._tree_path_ids.get(child_path, None)
548
601
        if child_id is None:
549
 
            return lexists(self._tree.abspath(childpath))
 
602
            # Not known by the tree transform yet, check the filesystem
 
603
            return osutils.lexists(self._tree.abspath(child_path))
550
604
        else:
551
 
            if self.final_parent(child_id) != parent_id:
552
 
                return False
553
 
            if child_id in self._removed_contents:
554
 
                # XXX What about dangling file-ids?
555
 
                return False
556
 
            else:
557
 
                return True
 
605
            raise AssertionError('child_id is missing: %s, %s, %s'
 
606
                                 % (name, parent_id, child_id))
 
607
 
 
608
    def _available_backup_name(self, name, target_id):
 
609
        """Find an available backup name.
 
610
 
 
611
        :param name: The basename of the file.
 
612
 
 
613
        :param target_id: The directory trans_id where the backup should 
 
614
            be placed.
 
615
        """
 
616
        known_children = self.by_parent().get(target_id, [])
 
617
        return osutils.available_backup_name(
 
618
            name,
 
619
            lambda base: self._has_named_child(
 
620
                base, target_id, known_children))
558
621
 
559
622
    def _parent_loops(self):
560
623
        """No entry should be its own ancestor"""
562
625
        for trans_id in self._new_parent:
563
626
            seen = set()
564
627
            parent_id = trans_id
565
 
            while parent_id is not ROOT_PARENT:
 
628
            while parent_id != ROOT_PARENT:
566
629
                seen.add(parent_id)
567
630
                try:
568
631
                    parent_id = self.final_parent(parent_id)
577
640
    def _unversioned_parents(self, by_parent):
578
641
        """If parent directories are versioned, children must be versioned."""
579
642
        conflicts = []
580
 
        for parent_id, children in by_parent.iteritems():
581
 
            if parent_id is ROOT_PARENT:
 
643
        for parent_id, children in viewitems(by_parent):
 
644
            if parent_id == ROOT_PARENT:
582
645
                continue
583
646
            if self.final_file_id(parent_id) is not None:
584
647
                continue
594
657
        However, existing entries with no contents are okay.
595
658
        """
596
659
        conflicts = []
597
 
        for trans_id in self._new_id.iterkeys():
598
 
            try:
599
 
                kind = self.final_kind(trans_id)
600
 
            except NoSuchFile:
 
660
        for trans_id in self._new_id:
 
661
            kind = self.final_kind(trans_id)
 
662
            if kind is None:
601
663
                conflicts.append(('versioning no contents', trans_id))
602
664
                continue
603
 
            if not InventoryEntry.versionable_kind(kind):
 
665
            if not inventory.InventoryEntry.versionable_kind(kind):
604
666
                conflicts.append(('versioning bad kind', trans_id, kind))
605
667
        return conflicts
606
668
 
617
679
            if self.final_file_id(trans_id) is None:
618
680
                conflicts.append(('unversioned executability', trans_id))
619
681
            else:
620
 
                try:
621
 
                    non_file = self.final_kind(trans_id) != "file"
622
 
                except NoSuchFile:
623
 
                    non_file = True
624
 
                if non_file is True:
 
682
                if self.final_kind(trans_id) != "file":
625
683
                    conflicts.append(('non-file executability', trans_id))
626
684
        return conflicts
627
685
 
629
687
        """Check for overwrites (not permitted on Win32)"""
630
688
        conflicts = []
631
689
        for trans_id in self._new_contents:
632
 
            try:
633
 
                self.tree_kind(trans_id)
634
 
            except NoSuchFile:
 
690
            if self.tree_kind(trans_id) is None:
635
691
                continue
636
692
            if trans_id not in self._removed_contents:
637
693
                conflicts.append(('overwrite', trans_id,
643
699
        conflicts = []
644
700
        if (self._new_name, self._new_parent) == ({}, {}):
645
701
            return conflicts
646
 
        for children in by_parent.itervalues():
647
 
            name_ids = [(self.final_name(t), t) for t in children]
648
 
            if not self._case_sensitive_target:
649
 
                name_ids = [(n.lower(), t) for n, t in name_ids]
 
702
        for children in viewvalues(by_parent):
 
703
            name_ids = []
 
704
            for child_tid in children:
 
705
                name = self.final_name(child_tid)
 
706
                if name is not None:
 
707
                    # Keep children only if they still exist in the end
 
708
                    if not self._case_sensitive_target:
 
709
                        name = name.lower()
 
710
                    name_ids.append((name, child_tid))
650
711
            name_ids.sort()
651
712
            last_name = None
652
713
            last_trans_id = None
653
714
            for name, trans_id in name_ids:
654
 
                try:
655
 
                    kind = self.final_kind(trans_id)
656
 
                except NoSuchFile:
657
 
                    kind = None
 
715
                kind = self.final_kind(trans_id)
658
716
                file_id = self.final_file_id(trans_id)
659
717
                if kind is None and file_id is None:
660
718
                    continue
672
730
                                self._removed_id))
673
731
        all_ids = self._tree.all_file_ids()
674
732
        active_tree_ids = all_ids.difference(removed_tree_ids)
675
 
        for trans_id, file_id in self._new_id.iteritems():
 
733
        for trans_id, file_id in viewitems(self._new_id):
676
734
            if file_id in active_tree_ids:
677
735
                old_trans_id = self.trans_id_tree_file_id(file_id)
678
736
                conflicts.append(('duplicate id', old_trans_id, trans_id))
679
737
        return conflicts
680
738
 
681
739
    def _parent_type_conflicts(self, by_parent):
682
 
        """parents must have directory 'contents'."""
 
740
        """Children must have a directory parent"""
683
741
        conflicts = []
684
 
        for parent_id, children in by_parent.iteritems():
685
 
            if parent_id is ROOT_PARENT:
686
 
                continue
687
 
            if not self._any_contents(children):
688
 
                continue
689
 
            for child in children:
690
 
                try:
691
 
                    self.final_kind(child)
692
 
                except NoSuchFile:
693
 
                    continue
694
 
            try:
695
 
                kind = self.final_kind(parent_id)
696
 
            except NoSuchFile:
697
 
                kind = None
 
742
        for parent_id, children in viewitems(by_parent):
 
743
            if parent_id == ROOT_PARENT:
 
744
                continue
 
745
            no_children = True
 
746
            for child_id in children:
 
747
                if self.final_kind(child_id) is not None:
 
748
                    no_children = False
 
749
                    break
 
750
            if no_children:
 
751
                continue
 
752
            # There is at least a child, so we need an existing directory to
 
753
            # contain it.
 
754
            kind = self.final_kind(parent_id)
698
755
            if kind is None:
 
756
                # The directory will be deleted
699
757
                conflicts.append(('missing parent', parent_id))
700
758
            elif kind != "directory":
 
759
                # Meh, we need a *directory* to put something in it
701
760
                conflicts.append(('non-directory parent', parent_id))
702
761
        return conflicts
703
762
 
704
 
    def _any_contents(self, trans_ids):
705
 
        """Return true if any of the trans_ids, will have contents."""
706
 
        for trans_id in trans_ids:
707
 
            try:
708
 
                kind = self.final_kind(trans_id)
709
 
            except NoSuchFile:
710
 
                continue
711
 
            return True
712
 
        return False
713
 
 
714
763
    def _set_executability(self, path, trans_id):
715
764
        """Set the executability of versioned files """
716
 
        if supports_executable():
 
765
        if self._tree._supports_executable():
717
766
            new_executability = self._new_executability[trans_id]
718
767
            abspath = self._tree.abspath(path)
719
768
            current_mode = os.stat(abspath).st_mode
720
769
            if new_executability:
721
770
                umask = os.umask(0)
722
771
                os.umask(umask)
723
 
                to_mode = current_mode | (0100 & ~umask)
 
772
                to_mode = current_mode | (0o100 & ~umask)
724
773
                # Enable x-bit for others only if they can read it.
725
 
                if current_mode & 0004:
726
 
                    to_mode |= 0001 & ~umask
727
 
                if current_mode & 0040:
728
 
                    to_mode |= 0010 & ~umask
 
774
                if current_mode & 0o004:
 
775
                    to_mode |= 0o001 & ~umask
 
776
                if current_mode & 0o040:
 
777
                    to_mode |= 0o010 & ~umask
729
778
            else:
730
 
                to_mode = current_mode & ~0111
731
 
            os.chmod(abspath, to_mode)
 
779
                to_mode = current_mode & ~0o111
 
780
            osutils.chmod_if_possible(abspath, to_mode)
732
781
 
733
782
    def _new_entry(self, name, parent_id, file_id):
734
783
        """Helper function to create a new filesystem entry."""
738
787
        return trans_id
739
788
 
740
789
    def new_file(self, name, parent_id, contents, file_id=None,
741
 
                 executable=None):
 
790
                 executable=None, sha1=None):
742
791
        """Convenience method to create files.
743
792
 
744
793
        name is the name of the file to create.
751
800
        trans_id = self._new_entry(name, parent_id, file_id)
752
801
        # TODO: rather than scheduling a set_executable call,
753
802
        # have create_file create the file with the right mode.
754
 
        self.create_file(contents, trans_id)
 
803
        self.create_file(contents, trans_id, sha1=sha1)
755
804
        if executable is not None:
756
805
            self.set_executability(executable, trans_id)
757
806
        return trans_id
780
829
        self.create_symlink(target, trans_id)
781
830
        return trans_id
782
831
 
 
832
    def new_orphan(self, trans_id, parent_id):
 
833
        """Schedule an item to be orphaned.
 
834
 
 
835
        When a directory is about to be removed, its children, if they are not
 
836
        versioned are moved out of the way: they don't have a parent anymore.
 
837
 
 
838
        :param trans_id: The trans_id of the existing item.
 
839
        :param parent_id: The parent trans_id of the item.
 
840
        """
 
841
        raise NotImplementedError(self.new_orphan)
 
842
 
 
843
    def _get_potential_orphans(self, dir_id):
 
844
        """Find the potential orphans in a directory.
 
845
 
 
846
        A directory can't be safely deleted if there are versioned files in it.
 
847
        If all the contained files are unversioned then they can be orphaned.
 
848
 
 
849
        The 'None' return value means that the directory contains at least one
 
850
        versioned file and should not be deleted.
 
851
 
 
852
        :param dir_id: The directory trans id.
 
853
 
 
854
        :return: A list of the orphan trans ids or None if at least one
 
855
             versioned file is present.
 
856
        """
 
857
        orphans = []
 
858
        # Find the potential orphans, stop if one item should be kept
 
859
        for child_tid in self.by_parent()[dir_id]:
 
860
            if child_tid in self._removed_contents:
 
861
                # The child is removed as part of the transform. Since it was
 
862
                # versioned before, it's not an orphan
 
863
                continue
 
864
            elif self.final_file_id(child_tid) is None:
 
865
                # The child is not versioned
 
866
                orphans.append(child_tid)
 
867
            else:
 
868
                # We have a versioned file here, searching for orphans is
 
869
                # meaningless.
 
870
                orphans = None
 
871
                break
 
872
        return orphans
 
873
 
783
874
    def _affected_ids(self):
784
875
        """Return the set of transform ids affected by the transform"""
785
876
        trans_ids = set(self._removed_id)
786
 
        trans_ids.update(self._new_id.keys())
 
877
        trans_ids.update(self._new_id)
787
878
        trans_ids.update(self._removed_contents)
788
 
        trans_ids.update(self._new_contents.keys())
789
 
        trans_ids.update(self._new_executability.keys())
790
 
        trans_ids.update(self._new_name.keys())
791
 
        trans_ids.update(self._new_parent.keys())
 
879
        trans_ids.update(self._new_contents)
 
880
        trans_ids.update(self._new_executability)
 
881
        trans_ids.update(self._new_name)
 
882
        trans_ids.update(self._new_parent)
792
883
        return trans_ids
793
884
 
794
885
    def _get_file_id_maps(self):
844
935
        Return a (name, parent, kind, executable) tuple
845
936
        """
846
937
        to_name = self.final_name(to_trans_id)
847
 
        try:
848
 
            to_kind = self.final_kind(to_trans_id)
849
 
        except NoSuchFile:
850
 
            to_kind = None
 
938
        to_kind = self.final_kind(to_trans_id)
851
939
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
852
940
        if to_trans_id in self._new_executability:
853
941
            to_executable = self._new_executability[to_trans_id]
871
959
        from_trans_ids, to_trans_ids = self._get_file_id_maps()
872
960
        results = []
873
961
        # Now iterate through all active file_ids
874
 
        for file_id in set(from_trans_ids.keys() + to_trans_ids.keys()):
 
962
        for file_id in set(from_trans_ids).union(to_trans_ids):
875
963
            modified = False
876
964
            from_trans_id = from_trans_ids.get(file_id)
877
965
            # find file ids, and determine versioning state
927
1015
        """
928
1016
        return _PreviewTree(self)
929
1017
 
930
 
    def commit(self, branch, message, merge_parents=None, strict=False):
 
1018
    def commit(self, branch, message, merge_parents=None, strict=False,
 
1019
               timestamp=None, timezone=None, committer=None, authors=None,
 
1020
               revprops=None, revision_id=None):
931
1021
        """Commit the result of this TreeTransform to a branch.
932
1022
 
933
1023
        :param branch: The branch to commit to.
934
1024
        :param message: The message to attach to the commit.
935
 
        :param merge_parents: Additional parents specified by pending merges.
 
1025
        :param merge_parents: Additional parent revision-ids specified by
 
1026
            pending merges.
 
1027
        :param strict: If True, abort the commit if there are unversioned
 
1028
            files.
 
1029
        :param timestamp: if not None, seconds-since-epoch for the time and
 
1030
            date.  (May be a float.)
 
1031
        :param timezone: Optional timezone for timestamp, as an offset in
 
1032
            seconds.
 
1033
        :param committer: Optional committer in email-id format.
 
1034
            (e.g. "J Random Hacker <jrandom@example.com>")
 
1035
        :param authors: Optional list of authors in email-id format.
 
1036
        :param revprops: Optional dictionary of revision properties.
 
1037
        :param revision_id: Optional revision id.  (Specifying a revision-id
 
1038
            may reduce performance for some non-native formats.)
936
1039
        :return: The revision_id of the revision committed.
937
1040
        """
938
1041
        self._check_malformed()
955
1058
        if self._tree.get_revision_id() != last_rev_id:
956
1059
            raise ValueError('TreeTransform not based on branch basis: %s' %
957
1060
                             self._tree.get_revision_id())
958
 
        builder = branch.get_commit_builder(parent_ids)
 
1061
        revprops = commit.Commit.update_revprops(revprops, branch, authors)
 
1062
        builder = branch.get_commit_builder(parent_ids,
 
1063
                                            timestamp=timestamp,
 
1064
                                            timezone=timezone,
 
1065
                                            committer=committer,
 
1066
                                            revprops=revprops,
 
1067
                                            revision_id=revision_id)
959
1068
        preview = self.get_preview_tree()
960
1069
        list(builder.record_iter_changes(preview, last_rev_id,
961
1070
                                         self.iter_changes()))
993
1102
        :param serializer: A Serialiser like pack.ContainerSerializer.
994
1103
        """
995
1104
        new_name = dict((k, v.encode('utf-8')) for k, v in
996
 
                        self._new_name.items())
 
1105
                        viewitems(self._new_name))
997
1106
        new_executability = dict((k, int(v)) for k, v in
998
 
                                 self._new_executability.items())
 
1107
                                 viewitems(self._new_executability))
999
1108
        tree_path_ids = dict((k.encode('utf-8'), v)
1000
 
                             for k, v in self._tree_path_ids.items())
 
1109
                             for k, v in viewitems(self._tree_path_ids))
1001
1110
        attribs = {
1002
1111
            '_id_number': self._id_number,
1003
1112
            '_new_name': new_name,
1011
1120
            }
1012
1121
        yield serializer.bytes_record(bencode.bencode(attribs),
1013
1122
                                      (('attribs',),))
1014
 
        for trans_id, kind in self._new_contents.items():
 
1123
        for trans_id, kind in viewitems(self._new_contents):
1015
1124
            if kind == 'file':
1016
1125
                lines = osutils.chunks_to_lines(
1017
1126
                    self._read_file_chunks(trans_id))
1030
1139
        :param records: An iterable of (names, content) tuples, as per
1031
1140
            pack.ContainerPushParser.
1032
1141
        """
1033
 
        names, content = records.next()
 
1142
        names, content = next(records)
1034
1143
        attribs = bencode.bdecode(content)
1035
1144
        self._id_number = attribs['_id_number']
1036
1145
        self._new_name = dict((k, v.decode('utf-8'))
1037
 
                            for k, v in attribs['_new_name'].items())
 
1146
                              for k, v in viewitems(attribs['_new_name']))
1038
1147
        self._new_parent = attribs['_new_parent']
1039
 
        self._new_executability = dict((k, bool(v)) for k, v in
1040
 
            attribs['_new_executability'].items())
 
1148
        self._new_executability = dict((k, bool(v))
 
1149
            for k, v in viewitems(attribs['_new_executability']))
1041
1150
        self._new_id = attribs['_new_id']
1042
 
        self._r_new_id = dict((v, k) for k, v in self._new_id.items())
 
1151
        self._r_new_id = dict((v, k) for k, v in viewitems(self._new_id))
1043
1152
        self._tree_path_ids = {}
1044
1153
        self._tree_id_paths = {}
1045
 
        for bytepath, trans_id in attribs['_tree_path_ids'].items():
 
1154
        for bytepath, trans_id in viewitems(attribs['_tree_path_ids']):
1046
1155
            path = bytepath.decode('utf-8')
1047
1156
            self._tree_path_ids[path] = trans_id
1048
1157
            self._tree_id_paths[trans_id] = path
1079
1188
        self._deletiondir = None
1080
1189
        # A mapping of transform ids to their limbo filename
1081
1190
        self._limbo_files = {}
 
1191
        self._possibly_stale_limbo_files = set()
1082
1192
        # A mapping of transform ids to a set of the transform ids of children
1083
1193
        # that their limbo directory has
1084
1194
        self._limbo_children = {}
1097
1207
        if self._tree is None:
1098
1208
            return
1099
1209
        try:
1100
 
            entries = [(self._limbo_name(t), t, k) for t, k in
1101
 
                       self._new_contents.iteritems()]
1102
 
            entries.sort(reverse=True)
1103
 
            for path, trans_id, kind in entries:
1104
 
                delete_any(path)
 
1210
            limbo_paths = list(viewvalues(self._limbo_files))
 
1211
            limbo_paths.extend(self._possibly_stale_limbo_files)
 
1212
            limbo_paths.sort(reverse=True)
 
1213
            for path in limbo_paths:
 
1214
                try:
 
1215
                    delete_any(path)
 
1216
                except OSError as e:
 
1217
                    if e.errno != errno.ENOENT:
 
1218
                        raise
 
1219
                    # XXX: warn? perhaps we just got interrupted at an
 
1220
                    # inconvenient moment, but perhaps files are disappearing
 
1221
                    # from under us?
1105
1222
            try:
1106
1223
                delete_any(self._limbodir)
1107
1224
            except OSError:
1115
1232
        finally:
1116
1233
            TreeTransformBase.finalize(self)
1117
1234
 
 
1235
    def _limbo_supports_executable(self):
 
1236
        """Check if the limbo path supports the executable bit."""
 
1237
        # FIXME: Check actual file system capabilities of limbodir
 
1238
        return osutils.supports_executable()
 
1239
 
1118
1240
    def _limbo_name(self, trans_id):
1119
1241
        """Generate the limbo name of a file"""
1120
1242
        limbo_name = self._limbo_files.get(trans_id)
1156
1278
        entries from _limbo_files, because they are now stale.
1157
1279
        """
1158
1280
        for trans_id in trans_ids:
1159
 
            old_path = self._limbo_files.pop(trans_id)
 
1281
            old_path = self._limbo_files[trans_id]
 
1282
            self._possibly_stale_limbo_files.add(old_path)
 
1283
            del self._limbo_files[trans_id]
1160
1284
            if trans_id not in self._new_contents:
1161
1285
                continue
1162
1286
            new_path = self._limbo_name(trans_id)
1163
 
            osutils.rename(old_path, new_path)
 
1287
            os.rename(old_path, new_path)
 
1288
            self._possibly_stale_limbo_files.remove(old_path)
1164
1289
            for descendant in self._limbo_descendants(trans_id):
1165
1290
                desc_path = self._limbo_files[descendant]
1166
1291
                desc_path = new_path + desc_path[len(old_path):]
1173
1298
            descendants.update(self._limbo_descendants(descendant))
1174
1299
        return descendants
1175
1300
 
1176
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1301
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1177
1302
        """Schedule creation of a new file.
1178
1303
 
1179
 
        See also new_file.
1180
 
 
1181
 
        Contents is an iterator of strings, all of which will be written
1182
 
        to the target destination.
1183
 
 
1184
 
        New file takes the permissions of any existing file with that id,
1185
 
        unless mode_id is specified.
 
1304
        :seealso: new_file.
 
1305
 
 
1306
        :param contents: an iterator of strings, all of which will be written
 
1307
            to the target destination.
 
1308
        :param trans_id: TreeTransform handle
 
1309
        :param mode_id: If not None, force the mode of the target file to match
 
1310
            the mode of the object referenced by mode_id.
 
1311
            Otherwise, we will try to preserve mode bits of an existing file.
 
1312
        :param sha1: If the sha1 of this content is already known, pass it in.
 
1313
            We can use it to prevent future sha1 computations.
1186
1314
        """
1187
1315
        name = self._limbo_name(trans_id)
1188
1316
        f = open(name, 'wb')
1189
1317
        try:
1190
 
            try:
1191
 
                unique_add(self._new_contents, trans_id, 'file')
1192
 
            except:
1193
 
                # Clean up the file, it never got registered so
1194
 
                # TreeTransform.finalize() won't clean it up.
1195
 
                f.close()
1196
 
                os.unlink(name)
1197
 
                raise
1198
 
 
 
1318
            unique_add(self._new_contents, trans_id, 'file')
1199
1319
            f.writelines(contents)
1200
1320
        finally:
1201
1321
            f.close()
1202
1322
        self._set_mtime(name)
1203
1323
        self._set_mode(trans_id, mode_id, S_ISREG)
 
1324
        # It is unfortunate we have to use lstat instead of fstat, but we just
 
1325
        # used utime and chmod on the file, so we need the accurate final
 
1326
        # details.
 
1327
        if sha1 is not None:
 
1328
            self._observed_sha1s[trans_id] = (sha1, osutils.lstat(name))
1204
1329
 
1205
1330
    def _read_file_chunks(self, trans_id):
1206
1331
        cur_file = open(self._limbo_name(trans_id), 'rb')
1226
1351
        name = self._limbo_name(trans_id)
1227
1352
        try:
1228
1353
            os.link(path, name)
1229
 
        except OSError, e:
 
1354
        except OSError as e:
1230
1355
            if e.errno != errno.EPERM:
1231
1356
                raise
1232
1357
            raise errors.HardLinkNotSupported(path)
1265
1390
    def cancel_creation(self, trans_id):
1266
1391
        """Cancel the creation of new file contents."""
1267
1392
        del self._new_contents[trans_id]
 
1393
        if trans_id in self._observed_sha1s:
 
1394
            del self._observed_sha1s[trans_id]
1268
1395
        children = self._limbo_children.get(trans_id)
1269
1396
        # if this is a limbo directory with children, move them before removing
1270
1397
        # the directory
1274
1401
            del self._limbo_children_names[trans_id]
1275
1402
        delete_any(self._limbo_name(trans_id))
1276
1403
 
 
1404
    def new_orphan(self, trans_id, parent_id):
 
1405
        conf = self._tree.get_config_stack()
 
1406
        handle_orphan = conf.get('bzr.transform.orphan_policy')
 
1407
        handle_orphan(self, trans_id, parent_id)
 
1408
 
 
1409
 
 
1410
class OrphaningError(errors.BzrError):
 
1411
 
 
1412
    # Only bugs could lead to such exception being seen by the user
 
1413
    internal_error = True
 
1414
    _fmt = "Error while orphaning %s in %s directory"
 
1415
 
 
1416
    def __init__(self, orphan, parent):
 
1417
        errors.BzrError.__init__(self)
 
1418
        self.orphan = orphan
 
1419
        self.parent = parent
 
1420
 
 
1421
 
 
1422
class OrphaningForbidden(OrphaningError):
 
1423
 
 
1424
    _fmt = "Policy: %s doesn't allow creating orphans."
 
1425
 
 
1426
    def __init__(self, policy):
 
1427
        errors.BzrError.__init__(self)
 
1428
        self.policy = policy
 
1429
 
 
1430
 
 
1431
def move_orphan(tt, orphan_id, parent_id):
 
1432
    """See TreeTransformBase.new_orphan.
 
1433
 
 
1434
    This creates a new orphan in the `bzr-orphans` dir at the root of the
 
1435
    `TreeTransform`.
 
1436
 
 
1437
    :param tt: The TreeTransform orphaning `trans_id`.
 
1438
 
 
1439
    :param orphan_id: The trans id that should be orphaned.
 
1440
 
 
1441
    :param parent_id: The orphan parent trans id.
 
1442
    """
 
1443
    # Add the orphan dir if it doesn't exist
 
1444
    orphan_dir_basename = 'bzr-orphans'
 
1445
    od_id = tt.trans_id_tree_path(orphan_dir_basename)
 
1446
    if tt.final_kind(od_id) is None:
 
1447
        tt.create_directory(od_id)
 
1448
    parent_path = tt._tree_id_paths[parent_id]
 
1449
    # Find a name that doesn't exist yet in the orphan dir
 
1450
    actual_name = tt.final_name(orphan_id)
 
1451
    new_name = tt._available_backup_name(actual_name, od_id)
 
1452
    tt.adjust_path(new_name, od_id, orphan_id)
 
1453
    trace.warning('%s has been orphaned in %s'
 
1454
                  % (joinpath(parent_path, actual_name), orphan_dir_basename))
 
1455
 
 
1456
 
 
1457
def refuse_orphan(tt, orphan_id, parent_id):
 
1458
    """See TreeTransformBase.new_orphan.
 
1459
 
 
1460
    This refuses to create orphan, letting the caller handle the conflict.
 
1461
    """
 
1462
    raise OrphaningForbidden('never')
 
1463
 
 
1464
 
 
1465
orphaning_registry = registry.Registry()
 
1466
orphaning_registry.register(
 
1467
    'conflict', refuse_orphan,
 
1468
    'Leave orphans in place and create a conflict on the directory.')
 
1469
orphaning_registry.register(
 
1470
    'move', move_orphan,
 
1471
    'Move orphans into the bzr-orphans directory.')
 
1472
orphaning_registry._set_default_key('conflict')
 
1473
 
 
1474
 
 
1475
opt_transform_orphan = _mod_config.RegistryOption(
 
1476
    'bzr.transform.orphan_policy', orphaning_registry,
 
1477
    help='Policy for orphaned files during transform operations.',
 
1478
    invalid='warning')
 
1479
 
1277
1480
 
1278
1481
class TreeTransform(DiskTreeTransform):
1279
1482
    """Represent a tree transformation.
1351
1554
        try:
1352
1555
            limbodir = urlutils.local_path_from_url(
1353
1556
                tree._transport.abspath('limbo'))
1354
 
            try:
1355
 
                os.mkdir(limbodir)
1356
 
            except OSError, e:
1357
 
                if e.errno == errno.EEXIST:
1358
 
                    raise ExistingLimbo(limbodir)
 
1557
            osutils.ensure_empty_directory_exists(
 
1558
                limbodir,
 
1559
                errors.ExistingLimbo)
1359
1560
            deletiondir = urlutils.local_path_from_url(
1360
1561
                tree._transport.abspath('pending-deletion'))
1361
 
            try:
1362
 
                os.mkdir(deletiondir)
1363
 
            except OSError, e:
1364
 
                if e.errno == errno.EEXIST:
1365
 
                    raise errors.ExistingPendingDeletion(deletiondir)
 
1562
            osutils.ensure_empty_directory_exists(
 
1563
                deletiondir,
 
1564
                errors.ExistingPendingDeletion)
1366
1565
        except:
1367
1566
            tree.unlock()
1368
1567
            raise
1397
1596
    def tree_kind(self, trans_id):
1398
1597
        """Determine the file kind in the working tree.
1399
1598
 
1400
 
        Raises NoSuchFile if the file does not exist
 
1599
        :returns: The file kind or None if the file does not exist
1401
1600
        """
1402
1601
        path = self._tree_id_paths.get(trans_id)
1403
1602
        if path is None:
1404
 
            raise NoSuchFile(None)
 
1603
            return None
1405
1604
        try:
1406
1605
            return file_kind(self._tree.abspath(path))
1407
 
        except OSError, e:
1408
 
            if e.errno != errno.ENOENT:
1409
 
                raise
1410
 
            else:
1411
 
                raise NoSuchFile(path)
 
1606
        except errors.NoSuchFile:
 
1607
            return None
1412
1608
 
1413
1609
    def _set_mode(self, trans_id, mode_id, typefunc):
1414
1610
        """Set the mode of new file contents.
1424
1620
            return
1425
1621
        try:
1426
1622
            mode = os.stat(self._tree.abspath(old_path)).st_mode
1427
 
        except OSError, e:
 
1623
        except OSError as e:
1428
1624
            if e.errno in (errno.ENOENT, errno.ENOTDIR):
1429
1625
                # Either old_path doesn't exist, or the parent of the
1430
1626
                # target is not a directory (but will be one eventually)
1434
1630
            else:
1435
1631
                raise
1436
1632
        if typefunc(mode):
1437
 
            os.chmod(self._limbo_name(trans_id), mode)
 
1633
            osutils.chmod_if_possible(self._limbo_name(trans_id), mode)
1438
1634
 
1439
1635
    def iter_tree_children(self, parent_id):
1440
1636
        """Iterate through the entry's tree children, if any"""
1444
1640
            return
1445
1641
        try:
1446
1642
            children = os.listdir(self._tree.abspath(path))
1447
 
        except OSError, e:
 
1643
        except OSError as e:
1448
1644
            if not (osutils._is_error_enotdir(e)
1449
1645
                    or e.errno in (errno.ENOENT, errno.ESRCH)):
1450
1646
                raise
1486
1682
                        in (trans_id, None)):
1487
1683
                        use_direct_path = True
1488
1684
                else:
1489
 
                    for l_filename, l_trans_id in\
1490
 
                        self._limbo_children_names[parent].iteritems():
 
1685
                    for l_filename, l_trans_id in viewitems(
 
1686
                            self._limbo_children_names[parent]):
1491
1687
                        if l_trans_id == trans_id:
1492
1688
                            continue
1493
1689
                        if l_filename.lower() == filename.lower():
1518
1714
            calculating one.
1519
1715
        :param _mover: Supply an alternate FileMover, for testing
1520
1716
        """
 
1717
        for hook in MutableTree.hooks['pre_transform']:
 
1718
            hook(self._tree, self)
1521
1719
        if not no_conflicts:
1522
1720
            self._check_malformed()
1523
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1721
        child_pb = ui.ui_factory.nested_progress_bar()
1524
1722
        try:
1525
1723
            if precomputed_delta is None:
1526
 
                child_pb.update('Apply phase', 0, 2)
 
1724
                child_pb.update(gettext('Apply phase'), 0, 2)
1527
1725
                inventory_delta = self._generate_inventory_delta()
1528
1726
                offset = 1
1529
1727
            else:
1534
1732
            else:
1535
1733
                mover = _mover
1536
1734
            try:
1537
 
                child_pb.update('Apply phase', 0 + offset, 2 + offset)
 
1735
                child_pb.update(gettext('Apply phase'), 0 + offset, 2 + offset)
1538
1736
                self._apply_removals(mover)
1539
 
                child_pb.update('Apply phase', 1 + offset, 2 + offset)
 
1737
                child_pb.update(gettext('Apply phase'), 1 + offset, 2 + offset)
1540
1738
                modified_paths = self._apply_insertions(mover)
1541
1739
            except:
1542
1740
                mover.rollback()
1545
1743
                mover.apply_deletions()
1546
1744
        finally:
1547
1745
            child_pb.finished()
 
1746
        if self.final_file_id(self.root) is None:
 
1747
            inventory_delta = [e for e in inventory_delta if e[0] != '']
1548
1748
        self._tree.apply_inventory_delta(inventory_delta)
 
1749
        self._apply_observed_sha1s()
1549
1750
        self._done = True
1550
1751
        self.finalize()
1551
1752
        return _TransformResults(modified_paths, self.rename_count)
1553
1754
    def _generate_inventory_delta(self):
1554
1755
        """Generate an inventory delta for the current transform."""
1555
1756
        inventory_delta = []
1556
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1757
        child_pb = ui.ui_factory.nested_progress_bar()
1557
1758
        new_paths = self._inventory_altered()
1558
1759
        total_entries = len(new_paths) + len(self._removed_id)
1559
1760
        try:
1560
1761
            for num, trans_id in enumerate(self._removed_id):
1561
1762
                if (num % 10) == 0:
1562
 
                    child_pb.update('removing file', num, total_entries)
 
1763
                    child_pb.update(gettext('removing file'), num, total_entries)
1563
1764
                if trans_id == self._new_root:
1564
1765
                    file_id = self._tree.get_root_id()
1565
1766
                else:
1572
1773
            new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1573
1774
                                     new_paths)
1574
1775
            entries = self._tree.iter_entries_by_dir(
1575
 
                new_path_file_ids.values())
 
1776
                viewvalues(new_path_file_ids))
1576
1777
            old_paths = dict((e.file_id, p) for p, e in entries)
1577
1778
            final_kinds = {}
1578
1779
            for num, (path, trans_id) in enumerate(new_paths):
1579
1780
                if (num % 10) == 0:
1580
 
                    child_pb.update('adding file',
 
1781
                    child_pb.update(gettext('adding file'),
1581
1782
                                    num + len(self._removed_id), total_entries)
1582
1783
                file_id = new_path_file_ids[trans_id]
1583
1784
                if file_id is None:
1584
1785
                    continue
1585
1786
                needs_entry = False
1586
 
                try:
1587
 
                    kind = self.final_kind(trans_id)
1588
 
                except NoSuchFile:
 
1787
                kind = self.final_kind(trans_id)
 
1788
                if kind is None:
1589
1789
                    kind = self._tree.stored_kind(file_id)
1590
1790
                parent_trans_id = self.final_parent(trans_id)
1591
1791
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1620
1820
 
1621
1821
        If inventory_delta is None, no inventory delta generation is performed.
1622
1822
        """
1623
 
        tree_paths = list(self._tree_path_ids.iteritems())
1624
 
        tree_paths.sort(reverse=True)
1625
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1823
        tree_paths = sorted(viewitems(self._tree_path_ids), reverse=True)
 
1824
        child_pb = ui.ui_factory.nested_progress_bar()
1626
1825
        try:
1627
 
            for num, data in enumerate(tree_paths):
1628
 
                path, trans_id = data
1629
 
                child_pb.update('removing file', num, len(tree_paths))
 
1826
            for num, (path, trans_id) in enumerate(tree_paths):
 
1827
                # do not attempt to move root into a subdirectory of itself.
 
1828
                if path == '':
 
1829
                    continue
 
1830
                child_pb.update(gettext('removing file'), num, len(tree_paths))
1630
1831
                full_path = self._tree.abspath(path)
1631
1832
                if trans_id in self._removed_contents:
1632
1833
                    delete_path = os.path.join(self._deletiondir, trans_id)
1635
1836
                      or trans_id in self._new_parent):
1636
1837
                    try:
1637
1838
                        mover.rename(full_path, self._limbo_name(trans_id))
1638
 
                    except OSError, e:
 
1839
                    except errors.TransformRenameFailed as e:
1639
1840
                        if e.errno != errno.ENOENT:
1640
1841
                            raise
1641
1842
                    else:
1657
1858
        modified_paths = []
1658
1859
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1659
1860
                                 new_paths)
1660
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1861
        child_pb = ui.ui_factory.nested_progress_bar()
1661
1862
        try:
1662
1863
            for num, (path, trans_id) in enumerate(new_paths):
1663
1864
                if (num % 10) == 0:
1664
 
                    child_pb.update('adding file', num, len(new_paths))
 
1865
                    child_pb.update(gettext('adding file'), num, len(new_paths))
1665
1866
                full_path = self._tree.abspath(path)
1666
1867
                if trans_id in self._needs_rename:
1667
1868
                    try:
1668
1869
                        mover.rename(self._limbo_name(trans_id), full_path)
1669
 
                    except OSError, e:
 
1870
                    except errors.TransformRenameFailed as e:
1670
1871
                        # We may be renaming a dangling inventory id
1671
1872
                        if e.errno != errno.ENOENT:
1672
1873
                            raise
1673
1874
                    else:
1674
1875
                        self.rename_count += 1
 
1876
                    # TODO: if trans_id in self._observed_sha1s, we should
 
1877
                    #       re-stat the final target, since ctime will be
 
1878
                    #       updated by the change.
1675
1879
                if (trans_id in self._new_contents or
1676
1880
                    self.path_changed(trans_id)):
1677
1881
                    if trans_id in self._new_contents:
1678
1882
                        modified_paths.append(full_path)
1679
1883
                if trans_id in self._new_executability:
1680
1884
                    self._set_executability(path, trans_id)
 
1885
                if trans_id in self._observed_sha1s:
 
1886
                    o_sha1, o_st_val = self._observed_sha1s[trans_id]
 
1887
                    st = osutils.lstat(full_path)
 
1888
                    self._observed_sha1s[trans_id] = (o_sha1, st)
1681
1889
        finally:
1682
1890
            child_pb.finished()
 
1891
        for path, trans_id in new_paths:
 
1892
            # new_paths includes stuff like workingtree conflicts. Only the
 
1893
            # stuff in new_contents actually comes from limbo.
 
1894
            if trans_id in self._limbo_files:
 
1895
                del self._limbo_files[trans_id]
1683
1896
        self._new_contents.clear()
1684
1897
        return modified_paths
1685
1898
 
 
1899
    def _apply_observed_sha1s(self):
 
1900
        """After we have finished renaming everything, update observed sha1s
 
1901
 
 
1902
        This has to be done after self._tree.apply_inventory_delta, otherwise
 
1903
        it doesn't know anything about the files we are updating. Also, we want
 
1904
        to do this as late as possible, so that most entries end up cached.
 
1905
        """
 
1906
        # TODO: this doesn't update the stat information for directories. So
 
1907
        #       the first 'bzr status' will still need to rewrite
 
1908
        #       .bzr/checkout/dirstate. However, we at least don't need to
 
1909
        #       re-read all of the files.
 
1910
        # TODO: If the operation took a while, we could do a time.sleep(3) here
 
1911
        #       to allow the clock to tick over and ensure we won't have any
 
1912
        #       problems. (we could observe start time, and finish time, and if
 
1913
        #       it is less than eg 10% overhead, add a sleep call.)
 
1914
        paths = FinalPaths(self)
 
1915
        for trans_id, observed in viewitems(self._observed_sha1s):
 
1916
            path = paths.get_path(trans_id)
 
1917
            # We could get the file_id, but dirstate prefers to use the path
 
1918
            # anyway, and it is 'cheaper' to determine.
 
1919
            # file_id = self._new_id[trans_id]
 
1920
            self._tree._observed_sha1(None, path, observed)
 
1921
 
1686
1922
 
1687
1923
class TransformPreview(DiskTreeTransform):
1688
1924
    """A TreeTransform for generating preview trees.
1703
1939
    def tree_kind(self, trans_id):
1704
1940
        path = self._tree_id_paths.get(trans_id)
1705
1941
        if path is None:
1706
 
            raise NoSuchFile(None)
1707
 
        file_id = self._tree.path2id(path)
1708
 
        return self._tree.kind(file_id)
 
1942
            return None
 
1943
        kind = self._tree.path_content_summary(path)[0]
 
1944
        if kind == 'missing':
 
1945
            kind = None
 
1946
        return kind
1709
1947
 
1710
1948
    def _set_mode(self, trans_id, mode_id, typefunc):
1711
1949
        """Set the mode of new file contents.
1731
1969
            childpath = joinpath(path, child)
1732
1970
            yield self.trans_id_tree_path(childpath)
1733
1971
 
1734
 
 
1735
 
class _PreviewTree(tree.Tree):
 
1972
    def new_orphan(self, trans_id, parent_id):
 
1973
        raise NotImplementedError(self.new_orphan)
 
1974
 
 
1975
 
 
1976
class _PreviewTree(tree.InventoryTree):
1736
1977
    """Partial implementation of Tree to support show_diff_trees"""
1737
1978
 
1738
1979
    def __init__(self, transform):
1767
2008
                yield self._get_repository().revision_tree(revision_id)
1768
2009
 
1769
2010
    def _get_file_revision(self, file_id, vf, tree_revision):
1770
 
        parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
 
2011
        parent_keys = [(file_id, t.get_file_revision(file_id)) for t in
1771
2012
                       self._iter_parent_trees()]
1772
2013
        vf.add_lines((file_id, tree_revision), parent_keys,
1773
 
                     self.get_file(file_id).readlines())
 
2014
                     self.get_file_lines(file_id))
1774
2015
        repo = self._get_repository()
1775
2016
        base_vf = repo.texts
1776
2017
        if base_vf not in vf.fallback_versionedfiles:
1777
2018
            vf.fallback_versionedfiles.append(base_vf)
1778
2019
        return tree_revision
1779
2020
 
1780
 
    def _stat_limbo_file(self, file_id):
1781
 
        trans_id = self._transform.trans_id_file_id(file_id)
 
2021
    def _stat_limbo_file(self, file_id=None, trans_id=None):
 
2022
        if trans_id is None:
 
2023
            trans_id = self._transform.trans_id_file_id(file_id)
1782
2024
        name = self._transform._limbo_name(trans_id)
1783
2025
        return os.lstat(name)
1784
2026
 
1798
2040
            executable = self.is_executable(file_id, path)
1799
2041
        return kind, executable, None
1800
2042
 
 
2043
    def is_locked(self):
 
2044
        return False
 
2045
 
1801
2046
    def lock_read(self):
1802
2047
        # Perhaps in theory, this should lock the TreeTransform?
1803
 
        pass
 
2048
        return self
1804
2049
 
1805
2050
    def unlock(self):
1806
2051
        pass
1807
2052
 
1808
2053
    @property
1809
 
    def inventory(self):
 
2054
    def root_inventory(self):
1810
2055
        """This Tree does not use inventory as its backing data."""
1811
 
        raise NotImplementedError(_PreviewTree.inventory)
 
2056
        raise NotImplementedError(_PreviewTree.root_inventory)
1812
2057
 
1813
2058
    def get_root_id(self):
1814
2059
        return self._transform.final_file_id(self._transform.root)
1817
2062
        tree_ids = set(self._transform._tree.all_file_ids())
1818
2063
        tree_ids.difference_update(self._transform.tree_file_id(t)
1819
2064
                                   for t in self._transform._removed_id)
1820
 
        tree_ids.update(self._transform._new_id.values())
 
2065
        tree_ids.update(viewvalues(self._transform._new_id))
1821
2066
        return tree_ids
1822
2067
 
1823
2068
    def __iter__(self):
1826
2071
    def _has_id(self, file_id, fallback_check):
1827
2072
        if file_id in self._transform._r_new_id:
1828
2073
            return True
1829
 
        elif file_id in set([self._transform.tree_file_id(trans_id) for
1830
 
            trans_id in self._transform._removed_id]):
 
2074
        elif file_id in {self._transform.tree_file_id(trans_id) for
 
2075
            trans_id in self._transform._removed_id}:
1831
2076
            return False
1832
2077
        else:
1833
2078
            return fallback_check(file_id)
1861
2106
        return cur_parent
1862
2107
 
1863
2108
    def path2id(self, path):
 
2109
        if isinstance(path, list):
 
2110
            if path == []:
 
2111
                path = [""]
 
2112
            path = osutils.pathjoin(*path)
1864
2113
        return self._transform.final_file_id(self._path2trans_id(path))
1865
2114
 
1866
2115
    def id2path(self, file_id):
1876
2125
            return children
1877
2126
        children = set(self._transform.iter_tree_children(trans_id))
1878
2127
        # children in the _new_parent set are provided by _by_parent.
1879
 
        children.difference_update(self._transform._new_parent.keys())
 
2128
        children.difference_update(self._transform._new_parent)
1880
2129
        children.update(self._by_parent.get(trans_id, []))
1881
2130
        self._all_children_cache[trans_id] = children
1882
2131
        return children
1904
2153
            if (specific_file_ids is not None
1905
2154
                and file_id not in specific_file_ids):
1906
2155
                continue
1907
 
            try:
1908
 
                kind = self._transform.final_kind(trans_id)
1909
 
            except NoSuchFile:
 
2156
            kind = self._transform.final_kind(trans_id)
 
2157
            if kind is None:
1910
2158
                kind = self._transform._tree.stored_kind(file_id)
1911
2159
            new_entry = inventory.make_entry(
1912
2160
                kind,
1928
2176
                ordered_ids.append((trans_id, parent_file_id))
1929
2177
        return ordered_ids
1930
2178
 
 
2179
    def iter_child_entries(self, file_id, path=None):
 
2180
        self.id2path(file_id)
 
2181
        trans_id = self._transform.trans_id_file_id(file_id)
 
2182
        todo = [(child_trans_id, trans_id) for child_trans_id in
 
2183
                self._all_children(trans_id)]
 
2184
        for entry, trans_id in self._make_inv_entries(todo):
 
2185
            yield entry
 
2186
 
1931
2187
    def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1932
2188
        # This may not be a maximally efficient implementation, but it is
1933
2189
        # reasonably straightforward.  An implementation that grafts the
1997
2253
 
1998
2254
    def get_file_size(self, file_id):
1999
2255
        """See Tree.get_file_size"""
 
2256
        trans_id = self._transform.trans_id_file_id(file_id)
 
2257
        kind = self._transform.final_kind(trans_id)
 
2258
        if kind != 'file':
 
2259
            return None
 
2260
        if trans_id in self._transform._new_contents:
 
2261
            return self._stat_limbo_file(trans_id=trans_id).st_size
2000
2262
        if self.kind(file_id) == 'file':
2001
2263
            return self._transform._tree.get_file_size(file_id)
2002
2264
        else:
2003
2265
            return None
2004
2266
 
 
2267
    def get_file_verifier(self, file_id, path=None, stat_value=None):
 
2268
        trans_id = self._transform.trans_id_file_id(file_id)
 
2269
        kind = self._transform._new_contents.get(trans_id)
 
2270
        if kind is None:
 
2271
            return self._transform._tree.get_file_verifier(file_id)
 
2272
        if kind == 'file':
 
2273
            fileobj = self.get_file(file_id)
 
2274
            try:
 
2275
                return ("SHA1", sha_file(fileobj))
 
2276
            finally:
 
2277
                fileobj.close()
 
2278
 
2005
2279
    def get_file_sha1(self, file_id, path=None, stat_value=None):
2006
2280
        trans_id = self._transform.trans_id_file_id(file_id)
2007
2281
        kind = self._transform._new_contents.get(trans_id)
2023
2297
        except KeyError:
2024
2298
            try:
2025
2299
                return self._transform._tree.is_executable(file_id, path)
2026
 
            except OSError, e:
 
2300
            except OSError as e:
2027
2301
                if e.errno == errno.ENOENT:
2028
2302
                    return False
2029
2303
                raise
2030
2304
            except errors.NoSuchId:
2031
2305
                return False
2032
2306
 
 
2307
    def has_filename(self, path):
 
2308
        trans_id = self._path2trans_id(path)
 
2309
        if trans_id in self._transform._new_contents:
 
2310
            return True
 
2311
        elif trans_id in self._transform._removed_contents:
 
2312
            return False
 
2313
        else:
 
2314
            return self._transform._tree.has_filename(path)
 
2315
 
2033
2316
    def path_content_summary(self, path):
2034
2317
        trans_id = self._path2trans_id(path)
2035
2318
        tt = self._transform
2048
2331
            if kind == 'file':
2049
2332
                statval = os.lstat(limbo_name)
2050
2333
                size = statval.st_size
2051
 
                if not supports_executable():
 
2334
                if not tt._limbo_supports_executable():
2052
2335
                    executable = False
2053
2336
                else:
2054
2337
                    executable = statval.st_mode & S_IEXEC
2123
2406
                                   self.get_file(file_id).readlines(),
2124
2407
                                   default_revision)
2125
2408
 
2126
 
    def get_symlink_target(self, file_id):
 
2409
    def get_symlink_target(self, file_id, path=None):
2127
2410
        """See Tree.get_symlink_target"""
2128
2411
        if not self._content_change(file_id):
2129
2412
            return self._transform._tree.get_symlink_target(file_id)
2144
2427
                path_from_root = self._final_paths.get_path(child_id)
2145
2428
                basename = self._transform.final_name(child_id)
2146
2429
                file_id = self._transform.final_file_id(child_id)
2147
 
                try:
2148
 
                    kind = self._transform.final_kind(child_id)
 
2430
                kind  = self._transform.final_kind(child_id)
 
2431
                if kind is not None:
2149
2432
                    versioned_kind = kind
2150
 
                except NoSuchFile:
 
2433
                else:
2151
2434
                    kind = 'unknown'
2152
2435
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2153
2436
                if versioned_kind == 'directory':
2266
2549
    for num, _unused in enumerate(wt.all_file_ids()):
2267
2550
        if num > 0:  # more than just a root
2268
2551
            raise errors.WorkingTreeAlreadyPopulated(base=wt.basedir)
2269
 
    existing_files = set()
2270
 
    for dir, files in wt.walkdirs():
2271
 
        existing_files.update(f[0] for f in files)
2272
2552
    file_trans_id = {}
2273
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2553
    top_pb = ui.ui_factory.nested_progress_bar()
2274
2554
    pp = ProgressPhase("Build phase", 2, top_pb)
2275
 
    if tree.inventory.root is not None:
 
2555
    if tree.get_root_id() is not None:
2276
2556
        # This is kind of a hack: we should be altering the root
2277
2557
        # as part of the regular tree shape diff logic.
2278
2558
        # The conditional test here is to avoid doing an
2289
2569
        pp.next_phase()
2290
2570
        file_trans_id[wt.get_root_id()] = \
2291
2571
            tt.trans_id_tree_file_id(wt.get_root_id())
2292
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2572
        pb = ui.ui_factory.nested_progress_bar()
2293
2573
        try:
2294
2574
            deferred_contents = []
2295
2575
            num = 0
2296
 
            total = len(tree.inventory)
 
2576
            total = len(tree.all_file_ids())
2297
2577
            if delta_from_tree:
2298
2578
                precomputed_delta = []
2299
2579
            else:
2300
2580
                precomputed_delta = None
 
2581
            # Check if tree inventory has content. If so, we populate
 
2582
            # existing_files with the directory content. If there are no
 
2583
            # entries we skip populating existing_files as its not used.
 
2584
            # This improves performance and unncessary work on large
 
2585
            # directory trees. (#501307)
 
2586
            if total > 0:
 
2587
                existing_files = set()
 
2588
                for dir, files in wt.walkdirs():
 
2589
                    existing_files.update(f[0] for f in files)
2301
2590
            for num, (tree_path, entry) in \
2302
 
                enumerate(tree.inventory.iter_entries_by_dir()):
2303
 
                pb.update("Building tree", num - len(deferred_contents), total)
 
2591
                enumerate(tree.iter_entries_by_dir()):
 
2592
                pb.update(gettext("Building tree"), num - len(deferred_contents), total)
2304
2593
                if entry.parent_id is None:
2305
2594
                    continue
2306
2595
                reparent = False
2312
2601
                    kind = file_kind(target_path)
2313
2602
                    if kind == "directory":
2314
2603
                        try:
2315
 
                            bzrdir.BzrDir.open(target_path)
 
2604
                            controldir.ControlDir.open(target_path)
2316
2605
                        except errors.NotBranchError:
2317
2606
                            pass
2318
2607
                        else:
2333
2622
                    executable = tree.is_executable(file_id, tree_path)
2334
2623
                    if executable:
2335
2624
                        tt.set_executability(executable, trans_id)
2336
 
                    trans_data = (trans_id, tree_path)
 
2625
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2337
2626
                    deferred_contents.append((file_id, trans_data))
2338
2627
                else:
2339
2628
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2355
2644
            precomputed_delta = None
2356
2645
        conflicts = cook_conflicts(raw_conflicts, tt)
2357
2646
        for conflict in conflicts:
2358
 
            warning(conflict)
 
2647
            trace.warning(unicode(conflict))
2359
2648
        try:
2360
2649
            wt.add_conflicts(conflicts)
2361
2650
        except errors.UnsupportedOperation:
2380
2669
                     in iter if not (c or e[0] != e[1])]
2381
2670
        if accelerator_tree.supports_content_filtering():
2382
2671
            unchanged = [(f, p) for (f, p) in unchanged
2383
 
                         if not accelerator_tree.iter_search_rules([p]).next()]
 
2672
                         if not next(accelerator_tree.iter_search_rules([p]))]
2384
2673
        unchanged = dict(unchanged)
2385
2674
        new_desired_files = []
2386
2675
        count = 0
2387
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2676
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2388
2677
            accelerator_path = unchanged.get(file_id)
2389
2678
            if accelerator_path is None:
2390
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2679
                new_desired_files.append((file_id,
 
2680
                    (trans_id, tree_path, text_sha1)))
2391
2681
                continue
2392
 
            pb.update('Adding file contents', count + offset, total)
 
2682
            pb.update(gettext('Adding file contents'), count + offset, total)
2393
2683
            if hardlink:
2394
2684
                tt.create_hardlink(accelerator_tree.abspath(accelerator_path),
2395
2685
                                   trans_id)
2400
2690
                    contents = filtered_output_bytes(contents, filters,
2401
2691
                        ContentFilterContext(tree_path, tree))
2402
2692
                try:
2403
 
                    tt.create_file(contents, trans_id)
 
2693
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2404
2694
                finally:
2405
2695
                    try:
2406
2696
                        contents.close()
2409
2699
                        pass
2410
2700
            count += 1
2411
2701
        offset += count
2412
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2702
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2413
2703
            tree.iter_files_bytes(new_desired_files)):
2414
2704
        if wt.supports_content_filtering():
2415
2705
            filters = wt._content_filter_stack(tree_path)
2416
2706
            contents = filtered_output_bytes(contents, filters,
2417
2707
                ContentFilterContext(tree_path, tree))
2418
 
        tt.create_file(contents, trans_id)
2419
 
        pb.update('Adding file contents', count + offset, total)
 
2708
        tt.create_file(contents, trans_id, sha1=text_sha1)
 
2709
        pb.update(gettext('Adding file contents'), count + offset, total)
2420
2710
 
2421
2711
 
2422
2712
def _reparent_children(tt, old_parent, new_parent):
2423
2713
    for child in tt.iter_tree_children(old_parent):
2424
2714
        tt.adjust_path(tt.final_name(child), new_parent, child)
2425
2715
 
 
2716
 
2426
2717
def _reparent_transform_children(tt, old_parent, new_parent):
2427
2718
    by_parent = tt.by_parent()
2428
2719
    for child in by_parent[old_parent]:
2429
2720
        tt.adjust_path(tt.final_name(child), new_parent, child)
2430
2721
    return by_parent[old_parent]
2431
2722
 
 
2723
 
2432
2724
def _content_match(tree, entry, file_id, kind, target_path):
2433
2725
    if entry.kind != kind:
2434
2726
        return False
2435
2727
    if entry.kind == "directory":
2436
2728
        return True
2437
2729
    if entry.kind == "file":
2438
 
        if tree.get_file(file_id).read() == file(target_path, 'rb').read():
2439
 
            return True
 
2730
        f = file(target_path, 'rb')
 
2731
        try:
 
2732
            if tree.get_file_text(file_id) == f.read():
 
2733
                return True
 
2734
        finally:
 
2735
            f.close()
2440
2736
    elif entry.kind == "symlink":
2441
2737
        if tree.get_symlink_target(file_id) == os.readlink(target_path):
2442
2738
            return True
2494
2790
        raise errors.BadFileKindError(name, kind)
2495
2791
 
2496
2792
 
2497
 
@deprecated_function(deprecated_in((1, 9, 0)))
2498
 
def create_by_entry(tt, entry, tree, trans_id, lines=None, mode_id=None):
2499
 
    """Create new file contents according to an inventory entry.
2500
 
 
2501
 
    DEPRECATED.  Use create_from_tree instead.
2502
 
    """
2503
 
    if entry.kind == "file":
2504
 
        if lines is None:
2505
 
            lines = tree.get_file(entry.file_id).readlines()
2506
 
        tt.create_file(lines, trans_id, mode_id=mode_id)
2507
 
    elif entry.kind == "symlink":
2508
 
        tt.create_symlink(tree.get_symlink_target(entry.file_id), trans_id)
2509
 
    elif entry.kind == "directory":
2510
 
        tt.create_directory(trans_id)
2511
 
 
2512
 
 
2513
2793
def create_from_tree(tt, trans_id, tree, file_id, bytes=None,
2514
2794
    filter_tree_path=None):
2515
2795
    """Create new file contents according to tree contents.
2546
2826
        tt.set_executability(entry.executable, trans_id)
2547
2827
 
2548
2828
 
2549
 
def get_backup_name(entry, by_parent, parent_trans_id, tt):
2550
 
    return _get_backup_name(entry.name, by_parent, parent_trans_id, tt)
2551
 
 
2552
 
 
2553
 
def _get_backup_name(name, by_parent, parent_trans_id, tt):
2554
 
    """Produce a backup-style name that appears to be available"""
2555
 
    def name_gen():
2556
 
        counter = 1
2557
 
        while True:
2558
 
            yield "%s.~%d~" % (name, counter)
2559
 
            counter += 1
2560
 
    for new_name in name_gen():
2561
 
        if not tt.has_named_child(by_parent, parent_trans_id, new_name):
2562
 
            return new_name
2563
 
 
2564
 
 
2565
 
def _entry_changes(file_id, entry, working_tree):
2566
 
    """Determine in which ways the inventory entry has changed.
2567
 
 
2568
 
    Returns booleans: has_contents, content_mod, meta_mod
2569
 
    has_contents means there are currently contents, but they differ
2570
 
    contents_mod means contents need to be modified
2571
 
    meta_mod means the metadata needs to be modified
2572
 
    """
2573
 
    cur_entry = working_tree.inventory[file_id]
2574
 
    try:
2575
 
        working_kind = working_tree.kind(file_id)
2576
 
        has_contents = True
2577
 
    except NoSuchFile:
2578
 
        has_contents = False
2579
 
        contents_mod = True
2580
 
        meta_mod = False
2581
 
    if has_contents is True:
2582
 
        if entry.kind != working_kind:
2583
 
            contents_mod, meta_mod = True, False
2584
 
        else:
2585
 
            cur_entry._read_tree_state(working_tree.id2path(file_id),
2586
 
                                       working_tree)
2587
 
            contents_mod, meta_mod = entry.detect_changes(cur_entry)
2588
 
            cur_entry._forget_tree_state()
2589
 
    return has_contents, contents_mod, meta_mod
2590
 
 
2591
 
 
2592
2829
def revert(working_tree, target_tree, filenames, backups=False,
2593
2830
           pb=None, change_reporter=None):
2594
2831
    """Revert a working tree's contents to those of a target tree."""
2604
2841
                unversioned_filter=working_tree.is_ignored)
2605
2842
            delta.report_changes(tt.iter_changes(), change_reporter)
2606
2843
        for conflict in conflicts:
2607
 
            warning(conflict)
 
2844
            trace.warning(unicode(conflict))
2608
2845
        pp.next_phase()
2609
2846
        tt.apply()
2610
2847
        working_tree.set_merge_modified(merge_modified)
2618
2855
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2619
2856
                              backups, pp, basis_tree=None,
2620
2857
                              merge_modified=None):
2621
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2858
    child_pb = ui.ui_factory.nested_progress_bar()
2622
2859
    try:
2623
2860
        if merge_modified is None:
2624
2861
            merge_modified = working_tree.merge_modified()
2627
2864
                                      merge_modified, basis_tree)
2628
2865
    finally:
2629
2866
        child_pb.finished()
2630
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2867
    child_pb = ui.ui_factory.nested_progress_bar()
2631
2868
    try:
2632
2869
        raw_conflicts = resolve_conflicts(tt, child_pb,
2633
2870
            lambda t, c: conflict_pass(t, c, target_tree))
2641
2878
                 backups, merge_modified, basis_tree=None):
2642
2879
    if basis_tree is not None:
2643
2880
        basis_tree.lock_read()
2644
 
    change_list = target_tree.iter_changes(working_tree,
 
2881
    # We ask the working_tree for its changes relative to the target, rather
 
2882
    # than the target changes relative to the working tree. Because WT4 has an
 
2883
    # optimizer to compare itself to a target, but no optimizer for the
 
2884
    # reverse.
 
2885
    change_list = working_tree.iter_changes(target_tree,
2645
2886
        specific_files=specific_files, pb=pb)
2646
2887
    if target_tree.get_root_id() is None:
2647
2888
        skip_root = True
2651
2892
        deferred_files = []
2652
2893
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2653
2894
                kind, executable) in enumerate(change_list):
2654
 
            if skip_root and file_id[0] is not None and parent[0] is None:
 
2895
            target_path, wt_path = path
 
2896
            target_versioned, wt_versioned = versioned
 
2897
            target_parent, wt_parent = parent
 
2898
            target_name, wt_name = name
 
2899
            target_kind, wt_kind = kind
 
2900
            target_executable, wt_executable = executable
 
2901
            if skip_root and wt_parent is None:
2655
2902
                continue
2656
2903
            trans_id = tt.trans_id_file_id(file_id)
2657
2904
            mode_id = None
2658
2905
            if changed_content:
2659
2906
                keep_content = False
2660
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2907
                if wt_kind == 'file' and (backups or target_kind is None):
2661
2908
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2662
2909
                    if merge_modified.get(file_id) != wt_sha1:
2663
2910
                        # acquire the basis tree lazily to prevent the
2666
2913
                        if basis_tree is None:
2667
2914
                            basis_tree = working_tree.basis_tree()
2668
2915
                            basis_tree.lock_read()
2669
 
                        if file_id in basis_tree:
 
2916
                        if basis_tree.has_id(file_id):
2670
2917
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2671
2918
                                keep_content = True
2672
 
                        elif kind[1] is None and not versioned[1]:
 
2919
                        elif target_kind is None and not target_versioned:
2673
2920
                            keep_content = True
2674
 
                if kind[0] is not None:
 
2921
                if wt_kind is not None:
2675
2922
                    if not keep_content:
2676
2923
                        tt.delete_contents(trans_id)
2677
 
                    elif kind[1] is not None:
2678
 
                        parent_trans_id = tt.trans_id_file_id(parent[0])
2679
 
                        by_parent = tt.by_parent()
2680
 
                        backup_name = _get_backup_name(name[0], by_parent,
2681
 
                                                       parent_trans_id, tt)
 
2924
                    elif target_kind is not None:
 
2925
                        parent_trans_id = tt.trans_id_file_id(wt_parent)
 
2926
                        backup_name = tt._available_backup_name(
 
2927
                            wt_name, parent_trans_id)
2682
2928
                        tt.adjust_path(backup_name, parent_trans_id, trans_id)
2683
 
                        new_trans_id = tt.create_path(name[0], parent_trans_id)
2684
 
                        if versioned == (True, True):
 
2929
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2930
                        if wt_versioned and target_versioned:
2685
2931
                            tt.unversion_file(trans_id)
2686
2932
                            tt.version_file(file_id, new_trans_id)
2687
2933
                        # New contents should have the same unix perms as old
2688
2934
                        # contents
2689
2935
                        mode_id = trans_id
2690
2936
                        trans_id = new_trans_id
2691
 
                if kind[1] in ('directory', 'tree-reference'):
 
2937
                if target_kind in ('directory', 'tree-reference'):
2692
2938
                    tt.create_directory(trans_id)
2693
 
                    if kind[1] == 'tree-reference':
 
2939
                    if target_kind == 'tree-reference':
2694
2940
                        revision = target_tree.get_reference_revision(file_id,
2695
 
                                                                      path[1])
 
2941
                                                                      target_path)
2696
2942
                        tt.set_tree_reference(revision, trans_id)
2697
 
                elif kind[1] == 'symlink':
 
2943
                elif target_kind == 'symlink':
2698
2944
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2699
2945
                                      trans_id)
2700
 
                elif kind[1] == 'file':
 
2946
                elif target_kind == 'file':
2701
2947
                    deferred_files.append((file_id, (trans_id, mode_id)))
2702
2948
                    if basis_tree is None:
2703
2949
                        basis_tree = working_tree.basis_tree()
2704
2950
                        basis_tree.lock_read()
2705
2951
                    new_sha1 = target_tree.get_file_sha1(file_id)
2706
 
                    if (file_id in basis_tree and new_sha1 ==
2707
 
                        basis_tree.get_file_sha1(file_id)):
 
2952
                    if (basis_tree.has_id(file_id) and
 
2953
                        new_sha1 == basis_tree.get_file_sha1(file_id)):
2708
2954
                        if file_id in merge_modified:
2709
2955
                            del merge_modified[file_id]
2710
2956
                    else:
2711
2957
                        merge_modified[file_id] = new_sha1
2712
2958
 
2713
2959
                    # preserve the execute bit when backing up
2714
 
                    if keep_content and executable[0] == executable[1]:
2715
 
                        tt.set_executability(executable[1], trans_id)
2716
 
                elif kind[1] is not None:
2717
 
                    raise AssertionError(kind[1])
2718
 
            if versioned == (False, True):
 
2960
                    if keep_content and wt_executable == target_executable:
 
2961
                        tt.set_executability(target_executable, trans_id)
 
2962
                elif target_kind is not None:
 
2963
                    raise AssertionError(target_kind)
 
2964
            if not wt_versioned and target_versioned:
2719
2965
                tt.version_file(file_id, trans_id)
2720
 
            if versioned == (True, False):
 
2966
            if wt_versioned and not target_versioned:
2721
2967
                tt.unversion_file(trans_id)
2722
 
            if (name[1] is not None and
2723
 
                (name[0] != name[1] or parent[0] != parent[1])):
2724
 
                if name[1] == '' and parent[1] is None:
 
2968
            if (target_name is not None and
 
2969
                (wt_name != target_name or wt_parent != target_parent)):
 
2970
                if target_name == '' and target_parent is None:
2725
2971
                    parent_trans = ROOT_PARENT
2726
2972
                else:
2727
 
                    parent_trans = tt.trans_id_file_id(parent[1])
2728
 
                if parent[0] is None and versioned[0]:
2729
 
                    tt.adjust_root_path(name[1], parent_trans)
 
2973
                    parent_trans = tt.trans_id_file_id(target_parent)
 
2974
                if wt_parent is None and wt_versioned:
 
2975
                    tt.adjust_root_path(target_name, parent_trans)
2730
2976
                else:
2731
 
                    tt.adjust_path(name[1], parent_trans, trans_id)
2732
 
            if executable[0] != executable[1] and kind[1] == "file":
2733
 
                tt.set_executability(executable[1], trans_id)
 
2977
                    tt.adjust_path(target_name, parent_trans, trans_id)
 
2978
            if wt_executable != target_executable and target_kind == "file":
 
2979
                tt.set_executability(target_executable, trans_id)
2734
2980
        if working_tree.supports_content_filtering():
2735
2981
            for index, ((trans_id, mode_id), bytes) in enumerate(
2736
2982
                target_tree.iter_files_bytes(deferred_files)):
2762
3008
    pb = ui.ui_factory.nested_progress_bar()
2763
3009
    try:
2764
3010
        for n in range(10):
2765
 
            pb.update('Resolution pass', n+1, 10)
 
3011
            pb.update(gettext('Resolution pass'), n+1, 10)
2766
3012
            conflicts = tt.find_conflicts()
2767
3013
            if len(conflicts) == 0:
2768
3014
                return new_conflicts
2792
3038
                existing_file, new_file = conflict[2], conflict[1]
2793
3039
            else:
2794
3040
                existing_file, new_file = conflict[1], conflict[2]
2795
 
            new_name = tt.final_name(existing_file)+'.moved'
 
3041
            new_name = tt.final_name(existing_file) + '.moved'
2796
3042
            tt.adjust_path(new_name, final_parent, existing_file)
2797
3043
            new_conflicts.add((c_type, 'Moved existing file to',
2798
3044
                               existing_file, new_file))
2807
3053
 
2808
3054
        elif c_type == 'missing parent':
2809
3055
            trans_id = conflict[1]
2810
 
            try:
2811
 
                tt.cancel_deletion(trans_id)
2812
 
                new_conflicts.add(('deleting parent', 'Not deleting',
2813
 
                                   trans_id))
2814
 
            except KeyError:
 
3056
            if trans_id in tt._removed_contents:
 
3057
                cancel_deletion = True
 
3058
                orphans = tt._get_potential_orphans(trans_id)
 
3059
                if orphans:
 
3060
                    cancel_deletion = False
 
3061
                    # All children are orphans
 
3062
                    for o in orphans:
 
3063
                        try:
 
3064
                            tt.new_orphan(o, trans_id)
 
3065
                        except OrphaningError:
 
3066
                            # Something bad happened so we cancel the directory
 
3067
                            # deletion which will leave it in place with a
 
3068
                            # conflict. The user can deal with it from there.
 
3069
                            # Note that this also catch the case where we don't
 
3070
                            # want to create orphans and leave the directory in
 
3071
                            # place.
 
3072
                            cancel_deletion = True
 
3073
                            break
 
3074
                if cancel_deletion:
 
3075
                    # Cancel the directory deletion
 
3076
                    tt.cancel_deletion(trans_id)
 
3077
                    new_conflicts.add(('deleting parent', 'Not deleting',
 
3078
                                       trans_id))
 
3079
            else:
2815
3080
                create = True
2816
3081
                try:
2817
3082
                    tt.final_name(trans_id)
2820
3085
                        file_id = tt.final_file_id(trans_id)
2821
3086
                        if file_id is None:
2822
3087
                            file_id = tt.inactive_file_id(trans_id)
2823
 
                        entry = path_tree.inventory[file_id]
 
3088
                        _, entry = next(path_tree.iter_entries_by_dir(
 
3089
                            [file_id]))
2824
3090
                        # special-case the other tree root (move its
2825
3091
                        # children to current root)
2826
3092
                        if entry.parent_id is None:
2841
3107
        elif c_type == 'unversioned parent':
2842
3108
            file_id = tt.inactive_file_id(conflict[1])
2843
3109
            # special-case the other tree root (move its children instead)
2844
 
            if path_tree and file_id in path_tree:
2845
 
                if path_tree.inventory[file_id].parent_id is None:
 
3110
            if path_tree and path_tree.has_id(file_id):
 
3111
                if path_tree.path2id('') == file_id:
 
3112
                    # This is the root entry, skip it
2846
3113
                    continue
2847
3114
            tt.version_file(file_id, conflict[1])
2848
3115
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2864
3131
 
2865
3132
def cook_conflicts(raw_conflicts, tt):
2866
3133
    """Generate a list of cooked conflicts, sorted by file path"""
2867
 
    from bzrlib.conflicts import Conflict
2868
3134
    conflict_iter = iter_cook_conflicts(raw_conflicts, tt)
2869
 
    return sorted(conflict_iter, key=Conflict.sort_key)
 
3135
    return sorted(conflict_iter, key=conflicts.Conflict.sort_key)
2870
3136
 
2871
3137
 
2872
3138
def iter_cook_conflicts(raw_conflicts, tt):
2873
 
    from bzrlib.conflicts import Conflict
2874
3139
    fp = FinalPaths(tt)
2875
3140
    for conflict in raw_conflicts:
2876
3141
        c_type = conflict[0]
2878
3143
        modified_path = fp.get_path(conflict[2])
2879
3144
        modified_id = tt.final_file_id(conflict[2])
2880
3145
        if len(conflict) == 3:
2881
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2882
 
                                     file_id=modified_id)
 
3146
            yield conflicts.Conflict.factory(
 
3147
                c_type, action=action, path=modified_path, file_id=modified_id)
2883
3148
 
2884
3149
        else:
2885
3150
            conflicting_path = fp.get_path(conflict[3])
2886
3151
            conflicting_id = tt.final_file_id(conflict[3])
2887
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2888
 
                                   file_id=modified_id,
2889
 
                                   conflict_path=conflicting_path,
2890
 
                                   conflict_file_id=conflicting_id)
 
3152
            yield conflicts.Conflict.factory(
 
3153
                c_type, action=action, path=modified_path,
 
3154
                file_id=modified_id,
 
3155
                conflict_path=conflicting_path,
 
3156
                conflict_file_id=conflicting_id)
2891
3157
 
2892
3158
 
2893
3159
class _FileMover(object):
2900
3166
    def rename(self, from_, to):
2901
3167
        """Rename a file from one path to another."""
2902
3168
        try:
2903
 
            osutils.rename(from_, to)
2904
 
        except OSError, e:
 
3169
            os.rename(from_, to)
 
3170
        except OSError as e:
2905
3171
            if e.errno in (errno.EEXIST, errno.ENOTEMPTY):
2906
3172
                raise errors.FileExists(to, str(e))
2907
 
            raise
 
3173
            # normal OSError doesn't include filenames so it's hard to see where
 
3174
            # the problem is, see https://bugs.launchpad.net/bzr/+bug/491763
 
3175
            raise errors.TransformRenameFailed(from_, to, str(e), e.errno)
2908
3176
        self.past_renames.append((from_, to))
2909
3177
 
2910
3178
    def pre_delete(self, from_, to):
2920
3188
    def rollback(self):
2921
3189
        """Reverse all renames that have been performed"""
2922
3190
        for from_, to in reversed(self.past_renames):
2923
 
            osutils.rename(to, from_)
 
3191
            try:
 
3192
                os.rename(to, from_)
 
3193
            except OSError as e:
 
3194
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)
2924
3195
        # after rollback, don't reuse _FileMover
2925
3196
        past_renames = None
2926
3197
        pending_deletions = None