/brz/remove-bazaar

To get this branch, use:
bzr branch http://gegoxaren.bato24.eu/bzr/brz/remove-bazaar

« back to all changes in this revision

Viewing changes to breezy/transform.py

  • Committer: Jelmer Vernooij
  • Date: 2017-06-10 18:34:12 UTC
  • mto: This revision was merged to the branch mainline in revision 6690.
  • Revision ID: jelmer@jelmer.uk-20170610183412-s9fro6la0e1848x6
More moves.

Show diffs side-by-side

added added

removed removed

Lines of Context:
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,
28
37
    commit,
 
38
    conflicts,
29
39
    delta,
30
 
    errors,
31
 
    inventory,
32
40
    multiparent,
33
41
    osutils,
34
42
    revision as _mod_revision,
35
43
    ui,
36
 
    )
 
44
    urlutils,
 
45
    )
 
46
from breezy.bzr import (
 
47
    inventory,
 
48
    )
 
49
from breezy.i18n import gettext
37
50
""")
38
 
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
39
 
                           ReusingTransform, CantMoveRoot,
40
 
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
41
 
                           UnableCreateSymlink)
42
 
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
43
 
from bzrlib.inventory import InventoryEntry
44
 
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 (
45
58
    delete_any,
46
59
    file_kind,
47
60
    has_symlinks,
48
 
    lexists,
49
61
    pathjoin,
50
62
    sha_file,
51
63
    splitpath,
52
 
    supports_executable,
53
 
)
54
 
from bzrlib.progress import ProgressPhase
55
 
from bzrlib.symbol_versioning import (
56
 
        deprecated_function,
57
 
        deprecated_in,
58
 
        )
59
 
from bzrlib.trace import mutter, warning
60
 
from bzrlib import tree
61
 
import bzrlib.ui
62
 
import bzrlib.urlutils as urlutils
 
64
    )
 
65
from .progress import ProgressPhase
 
66
from .sixish import (
 
67
    viewitems,
 
68
    viewvalues,
 
69
    )
63
70
 
64
71
 
65
72
ROOT_PARENT = "root-parent"
66
73
 
67
 
 
68
74
def unique_add(map, key, value):
69
75
    if key in map:
70
76
        raise DuplicateKey(key=key)
71
77
    map[key] = value
72
78
 
73
79
 
 
80
 
74
81
class _TransformResults(object):
75
82
    def __init__(self, modified_paths, rename_count):
76
83
        object.__init__(self)
100
107
        self._new_parent = {}
101
108
        # mapping of trans_id with new contents -> new file_kind
102
109
        self._new_contents = {}
 
110
        # mapping of trans_id => (sha1 of content, stat_value)
 
111
        self._observed_sha1s = {}
103
112
        # Set of trans_ids whose contents will be removed
104
113
        self._removed_contents = set()
105
114
        # Mapping of trans_id -> new execute-bit value
124
133
            self._new_root = self.trans_id_tree_file_id(root_id)
125
134
        else:
126
135
            self._new_root = None
127
 
        # Indictor of whether the transform has been applied
 
136
        # Indicator of whether the transform has been applied
128
137
        self._done = False
129
138
        # A progress bar
130
139
        self._pb = pb
133
142
        # A counter of how many files have been renamed
134
143
        self.rename_count = 0
135
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
 
136
153
    def finalize(self):
137
154
        """Release the working tree lock, if held.
138
155
 
141
158
        """
142
159
        if self._tree is None:
143
160
            return
 
161
        for hook in MutableTree.hooks['post_transform']:
 
162
            hook(self._tree, self)
144
163
        self._tree.unlock()
145
164
        self._tree = None
146
165
 
213
232
        This means that the old root trans-id becomes obsolete, so it is
214
233
        recommended only to invoke this after the root trans-id has become
215
234
        irrelevant.
 
235
 
216
236
        """
217
 
        new_roots = [k for k, v in self._new_parent.iteritems() if v is
218
 
                     ROOT_PARENT]
 
237
        new_roots = [k for k, v in viewitems(self._new_parent)
 
238
                     if v == ROOT_PARENT]
219
239
        if len(new_roots) < 1:
220
240
            return
221
241
        if len(new_roots) != 1:
224
244
            self._new_root = new_roots[0]
225
245
            return
226
246
        old_new_root = new_roots[0]
227
 
        # TODO: What to do if a old_new_root is present, but self._new_root is
228
 
        #       not listed as being removed? This code explicitly unversions
229
 
        #       the old root and versions it with the new file_id. Though that
230
 
        #       seems like an incomplete delta
231
 
 
232
247
        # unversion the new root's directory.
233
 
        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)
234
252
        if old_new_root in self._new_id:
235
253
            self.cancel_versioning(old_new_root)
236
254
        else:
240
258
        if (self.tree_file_id(self._new_root) is not None and
241
259
            self._new_root not in self._removed_id):
242
260
            self.unversion_file(self._new_root)
243
 
        self.version_file(file_id, self._new_root)
 
261
        if file_id is not None:
 
262
            self.version_file(file_id, self._new_root)
244
263
 
245
264
        # Now move children of new root into old root directory.
246
265
        # Ensure all children are registered with the transaction, but don't
287
306
            return self._r_new_id[file_id]
288
307
        else:
289
308
            try:
290
 
                self._tree.iter_entries_by_dir([file_id]).next()
 
309
                next(self._tree.iter_entries_by_dir([file_id]))
291
310
            except StopIteration:
292
311
                if file_id in self._non_present_ids:
293
312
                    return self._non_present_ids[file_id]
315
334
 
316
335
    def delete_contents(self, trans_id):
317
336
        """Schedule the contents of a path entry for deletion"""
318
 
        # Ensure that the object exists in the WorkingTree, this will raise an
319
 
        # exception if there is a problem
320
 
        self.tree_kind(trans_id)
321
 
        self._removed_contents.add(trans_id)
 
337
        kind = self.tree_kind(trans_id)
 
338
        if kind is not None:
 
339
            self._removed_contents.add(trans_id)
322
340
 
323
341
    def cancel_deletion(self, trans_id):
324
342
        """Cancel a scheduled deletion"""
381
399
        return sorted(FinalPaths(self).get_paths(new_ids))
382
400
 
383
401
    def _inventory_altered(self):
384
 
        """Get the trans_ids and paths of files needing new inv entries."""
385
 
        new_ids = set()
386
 
        for id_set in [self._new_name, self._new_parent, self._new_id,
 
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,
387
420
                       self._new_executability]:
388
 
            new_ids.update(id_set)
 
421
            changed_ids.update(id_set)
 
422
        # removing implies a kind change
389
423
        changed_kind = set(self._removed_contents)
 
424
        # so does adding
390
425
        changed_kind.intersection_update(self._new_contents)
391
 
        changed_kind.difference_update(new_ids)
392
 
        changed_kind = (t for t in changed_kind if self.tree_kind(t) !=
393
 
                        self.final_kind(t))
394
 
        new_ids.update(changed_kind)
395
 
        return sorted(FinalPaths(self).get_paths(new_ids))
 
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))
396
440
 
397
441
    def final_kind(self, trans_id):
398
442
        """Determine the final file kind, after any changes applied.
399
443
 
400
 
        Raises NoSuchFile if the file does not exist/has no contents.
401
 
        (It is conceivable that a path would be created without the
402
 
        corresponding contents insertion command)
 
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)
403
447
        """
404
448
        if trans_id in self._new_contents:
405
449
            return self._new_contents[trans_id]
406
450
        elif trans_id in self._removed_contents:
407
 
            raise NoSuchFile(None)
 
451
            return None
408
452
        else:
409
453
            return self.tree_kind(trans_id)
410
454
 
441
485
        file_id = self.tree_file_id(trans_id)
442
486
        if file_id is not None:
443
487
            return file_id
444
 
        for key, value in self._non_present_ids.iteritems():
 
488
        for key, value in viewitems(self._non_present_ids):
445
489
            if value == trans_id:
446
490
                return key
447
491
 
471
515
        Only new paths and parents of tree files with assigned ids are used.
472
516
        """
473
517
        by_parent = {}
474
 
        items = list(self._new_parent.iteritems())
475
 
        items.extend((t, self.final_parent(t)) for t in
476
 
                      self._tree_id_paths.keys())
 
518
        items = list(viewitems(self._new_parent))
 
519
        items.extend((t, self.final_parent(t))
 
520
            for t in list(self._tree_id_paths))
477
521
        for trans_id, parent_id in items:
478
522
            if parent_id not in by_parent:
479
523
                by_parent[parent_id] = set()
517
561
        Active parents are those which gain children, and those which are
518
562
        removed.  This is a necessary first step in detecting conflicts.
519
563
        """
520
 
        parents = self.by_parent().keys()
 
564
        parents = list(self.by_parent())
521
565
        parents.extend([t for t in self._removed_contents if
522
566
                        self.tree_kind(t) == 'directory'])
523
567
        for trans_id in self._removed_id:
524
568
            file_id = self.tree_file_id(trans_id)
525
569
            if file_id is not None:
526
 
                if self._tree.inventory[file_id].kind == 'directory':
 
570
                if self._tree.stored_kind(file_id) == 'directory':
527
571
                    parents.append(trans_id)
528
572
            elif self.tree_kind(trans_id) == 'directory':
529
573
                parents.append(trans_id)
532
576
            # ensure that all children are registered with the transaction
533
577
            list(self.iter_tree_children(parent_id))
534
578
 
535
 
    def has_named_child(self, by_parent, parent_id, name):
536
 
        try:
537
 
            children = by_parent[parent_id]
538
 
        except KeyError:
539
 
            children = []
540
 
        for child in children:
 
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:
541
593
            if self.final_name(child) == name:
542
594
                return True
543
 
        try:
544
 
            path = self._tree_id_paths[parent_id]
545
 
        except KeyError:
 
595
        parent_path = self._tree_id_paths.get(parent_id, None)
 
596
        if parent_path is None:
 
597
            # No parent... no children
546
598
            return False
547
 
        childpath = joinpath(path, name)
548
 
        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)
549
601
        if child_id is None:
550
 
            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))
551
604
        else:
552
 
            if self.final_parent(child_id) != parent_id:
553
 
                return False
554
 
            if child_id in self._removed_contents:
555
 
                # XXX What about dangling file-ids?
556
 
                return False
557
 
            else:
558
 
                return True
 
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))
559
621
 
560
622
    def _parent_loops(self):
561
623
        """No entry should be its own ancestor"""
563
625
        for trans_id in self._new_parent:
564
626
            seen = set()
565
627
            parent_id = trans_id
566
 
            while parent_id is not ROOT_PARENT:
 
628
            while parent_id != ROOT_PARENT:
567
629
                seen.add(parent_id)
568
630
                try:
569
631
                    parent_id = self.final_parent(parent_id)
578
640
    def _unversioned_parents(self, by_parent):
579
641
        """If parent directories are versioned, children must be versioned."""
580
642
        conflicts = []
581
 
        for parent_id, children in by_parent.iteritems():
582
 
            if parent_id is ROOT_PARENT:
 
643
        for parent_id, children in viewitems(by_parent):
 
644
            if parent_id == ROOT_PARENT:
583
645
                continue
584
646
            if self.final_file_id(parent_id) is not None:
585
647
                continue
595
657
        However, existing entries with no contents are okay.
596
658
        """
597
659
        conflicts = []
598
 
        for trans_id in self._new_id.iterkeys():
599
 
            try:
600
 
                kind = self.final_kind(trans_id)
601
 
            except NoSuchFile:
 
660
        for trans_id in self._new_id:
 
661
            kind = self.final_kind(trans_id)
 
662
            if kind is None:
602
663
                conflicts.append(('versioning no contents', trans_id))
603
664
                continue
604
 
            if not InventoryEntry.versionable_kind(kind):
 
665
            if not inventory.InventoryEntry.versionable_kind(kind):
605
666
                conflicts.append(('versioning bad kind', trans_id, kind))
606
667
        return conflicts
607
668
 
618
679
            if self.final_file_id(trans_id) is None:
619
680
                conflicts.append(('unversioned executability', trans_id))
620
681
            else:
621
 
                try:
622
 
                    non_file = self.final_kind(trans_id) != "file"
623
 
                except NoSuchFile:
624
 
                    non_file = True
625
 
                if non_file is True:
 
682
                if self.final_kind(trans_id) != "file":
626
683
                    conflicts.append(('non-file executability', trans_id))
627
684
        return conflicts
628
685
 
630
687
        """Check for overwrites (not permitted on Win32)"""
631
688
        conflicts = []
632
689
        for trans_id in self._new_contents:
633
 
            try:
634
 
                self.tree_kind(trans_id)
635
 
            except NoSuchFile:
 
690
            if self.tree_kind(trans_id) is None:
636
691
                continue
637
692
            if trans_id not in self._removed_contents:
638
693
                conflicts.append(('overwrite', trans_id,
644
699
        conflicts = []
645
700
        if (self._new_name, self._new_parent) == ({}, {}):
646
701
            return conflicts
647
 
        for children in by_parent.itervalues():
648
 
            name_ids = [(self.final_name(t), t) for t in children]
649
 
            if not self._case_sensitive_target:
650
 
                name_ids = [(n.lower(), t) for n, t in name_ids]
 
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))
651
711
            name_ids.sort()
652
712
            last_name = None
653
713
            last_trans_id = None
654
714
            for name, trans_id in name_ids:
655
 
                try:
656
 
                    kind = self.final_kind(trans_id)
657
 
                except NoSuchFile:
658
 
                    kind = None
 
715
                kind = self.final_kind(trans_id)
659
716
                file_id = self.final_file_id(trans_id)
660
717
                if kind is None and file_id is None:
661
718
                    continue
673
730
                                self._removed_id))
674
731
        all_ids = self._tree.all_file_ids()
675
732
        active_tree_ids = all_ids.difference(removed_tree_ids)
676
 
        for trans_id, file_id in self._new_id.iteritems():
 
733
        for trans_id, file_id in viewitems(self._new_id):
677
734
            if file_id in active_tree_ids:
678
735
                old_trans_id = self.trans_id_tree_file_id(file_id)
679
736
                conflicts.append(('duplicate id', old_trans_id, trans_id))
680
737
        return conflicts
681
738
 
682
739
    def _parent_type_conflicts(self, by_parent):
683
 
        """parents must have directory 'contents'."""
 
740
        """Children must have a directory parent"""
684
741
        conflicts = []
685
 
        for parent_id, children in by_parent.iteritems():
686
 
            if parent_id is ROOT_PARENT:
687
 
                continue
688
 
            if not self._any_contents(children):
689
 
                continue
690
 
            for child in children:
691
 
                try:
692
 
                    self.final_kind(child)
693
 
                except NoSuchFile:
694
 
                    continue
695
 
            try:
696
 
                kind = self.final_kind(parent_id)
697
 
            except NoSuchFile:
698
 
                kind = None
 
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)
699
755
            if kind is None:
 
756
                # The directory will be deleted
700
757
                conflicts.append(('missing parent', parent_id))
701
758
            elif kind != "directory":
 
759
                # Meh, we need a *directory* to put something in it
702
760
                conflicts.append(('non-directory parent', parent_id))
703
761
        return conflicts
704
762
 
705
 
    def _any_contents(self, trans_ids):
706
 
        """Return true if any of the trans_ids, will have contents."""
707
 
        for trans_id in trans_ids:
708
 
            try:
709
 
                kind = self.final_kind(trans_id)
710
 
            except NoSuchFile:
711
 
                continue
712
 
            return True
713
 
        return False
714
 
 
715
763
    def _set_executability(self, path, trans_id):
716
764
        """Set the executability of versioned files """
717
 
        if supports_executable():
 
765
        if self._tree._supports_executable():
718
766
            new_executability = self._new_executability[trans_id]
719
767
            abspath = self._tree.abspath(path)
720
768
            current_mode = os.stat(abspath).st_mode
721
769
            if new_executability:
722
770
                umask = os.umask(0)
723
771
                os.umask(umask)
724
 
                to_mode = current_mode | (0100 & ~umask)
 
772
                to_mode = current_mode | (0o100 & ~umask)
725
773
                # Enable x-bit for others only if they can read it.
726
 
                if current_mode & 0004:
727
 
                    to_mode |= 0001 & ~umask
728
 
                if current_mode & 0040:
729
 
                    to_mode |= 0010 & ~umask
 
774
                if current_mode & 0o004:
 
775
                    to_mode |= 0o001 & ~umask
 
776
                if current_mode & 0o040:
 
777
                    to_mode |= 0o010 & ~umask
730
778
            else:
731
 
                to_mode = current_mode & ~0111
732
 
            os.chmod(abspath, to_mode)
 
779
                to_mode = current_mode & ~0o111
 
780
            osutils.chmod_if_possible(abspath, to_mode)
733
781
 
734
782
    def _new_entry(self, name, parent_id, file_id):
735
783
        """Helper function to create a new filesystem entry."""
739
787
        return trans_id
740
788
 
741
789
    def new_file(self, name, parent_id, contents, file_id=None,
742
 
                 executable=None):
 
790
                 executable=None, sha1=None):
743
791
        """Convenience method to create files.
744
792
 
745
793
        name is the name of the file to create.
752
800
        trans_id = self._new_entry(name, parent_id, file_id)
753
801
        # TODO: rather than scheduling a set_executable call,
754
802
        # have create_file create the file with the right mode.
755
 
        self.create_file(contents, trans_id)
 
803
        self.create_file(contents, trans_id, sha1=sha1)
756
804
        if executable is not None:
757
805
            self.set_executability(executable, trans_id)
758
806
        return trans_id
781
829
        self.create_symlink(target, trans_id)
782
830
        return trans_id
783
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
 
784
874
    def _affected_ids(self):
785
875
        """Return the set of transform ids affected by the transform"""
786
876
        trans_ids = set(self._removed_id)
787
 
        trans_ids.update(self._new_id.keys())
 
877
        trans_ids.update(self._new_id)
788
878
        trans_ids.update(self._removed_contents)
789
 
        trans_ids.update(self._new_contents.keys())
790
 
        trans_ids.update(self._new_executability.keys())
791
 
        trans_ids.update(self._new_name.keys())
792
 
        trans_ids.update(self._new_parent.keys())
 
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)
793
883
        return trans_ids
794
884
 
795
885
    def _get_file_id_maps(self):
845
935
        Return a (name, parent, kind, executable) tuple
846
936
        """
847
937
        to_name = self.final_name(to_trans_id)
848
 
        try:
849
 
            to_kind = self.final_kind(to_trans_id)
850
 
        except NoSuchFile:
851
 
            to_kind = None
 
938
        to_kind = self.final_kind(to_trans_id)
852
939
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
853
940
        if to_trans_id in self._new_executability:
854
941
            to_executable = self._new_executability[to_trans_id]
872
959
        from_trans_ids, to_trans_ids = self._get_file_id_maps()
873
960
        results = []
874
961
        # Now iterate through all active file_ids
875
 
        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):
876
963
            modified = False
877
964
            from_trans_id = from_trans_ids.get(file_id)
878
965
            # find file ids, and determine versioning state
1015
1102
        :param serializer: A Serialiser like pack.ContainerSerializer.
1016
1103
        """
1017
1104
        new_name = dict((k, v.encode('utf-8')) for k, v in
1018
 
                        self._new_name.items())
 
1105
                        viewitems(self._new_name))
1019
1106
        new_executability = dict((k, int(v)) for k, v in
1020
 
                                 self._new_executability.items())
 
1107
                                 viewitems(self._new_executability))
1021
1108
        tree_path_ids = dict((k.encode('utf-8'), v)
1022
 
                             for k, v in self._tree_path_ids.items())
 
1109
                             for k, v in viewitems(self._tree_path_ids))
1023
1110
        attribs = {
1024
1111
            '_id_number': self._id_number,
1025
1112
            '_new_name': new_name,
1033
1120
            }
1034
1121
        yield serializer.bytes_record(bencode.bencode(attribs),
1035
1122
                                      (('attribs',),))
1036
 
        for trans_id, kind in self._new_contents.items():
 
1123
        for trans_id, kind in viewitems(self._new_contents):
1037
1124
            if kind == 'file':
1038
1125
                lines = osutils.chunks_to_lines(
1039
1126
                    self._read_file_chunks(trans_id))
1052
1139
        :param records: An iterable of (names, content) tuples, as per
1053
1140
            pack.ContainerPushParser.
1054
1141
        """
1055
 
        names, content = records.next()
 
1142
        names, content = next(records)
1056
1143
        attribs = bencode.bdecode(content)
1057
1144
        self._id_number = attribs['_id_number']
1058
1145
        self._new_name = dict((k, v.decode('utf-8'))
1059
 
                            for k, v in attribs['_new_name'].items())
 
1146
                              for k, v in viewitems(attribs['_new_name']))
1060
1147
        self._new_parent = attribs['_new_parent']
1061
 
        self._new_executability = dict((k, bool(v)) for k, v in
1062
 
            attribs['_new_executability'].items())
 
1148
        self._new_executability = dict((k, bool(v))
 
1149
            for k, v in viewitems(attribs['_new_executability']))
1063
1150
        self._new_id = attribs['_new_id']
1064
 
        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))
1065
1152
        self._tree_path_ids = {}
1066
1153
        self._tree_id_paths = {}
1067
 
        for bytepath, trans_id in attribs['_tree_path_ids'].items():
 
1154
        for bytepath, trans_id in viewitems(attribs['_tree_path_ids']):
1068
1155
            path = bytepath.decode('utf-8')
1069
1156
            self._tree_path_ids[path] = trans_id
1070
1157
            self._tree_id_paths[trans_id] = path
1101
1188
        self._deletiondir = None
1102
1189
        # A mapping of transform ids to their limbo filename
1103
1190
        self._limbo_files = {}
 
1191
        self._possibly_stale_limbo_files = set()
1104
1192
        # A mapping of transform ids to a set of the transform ids of children
1105
1193
        # that their limbo directory has
1106
1194
        self._limbo_children = {}
1119
1207
        if self._tree is None:
1120
1208
            return
1121
1209
        try:
1122
 
            entries = [(self._limbo_name(t), t, k) for t, k in
1123
 
                       self._new_contents.iteritems()]
1124
 
            entries.sort(reverse=True)
1125
 
            for path, trans_id, kind in entries:
1126
 
                delete_any(path)
 
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?
1127
1222
            try:
1128
1223
                delete_any(self._limbodir)
1129
1224
            except OSError:
1137
1232
        finally:
1138
1233
            TreeTransformBase.finalize(self)
1139
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
 
1140
1240
    def _limbo_name(self, trans_id):
1141
1241
        """Generate the limbo name of a file"""
1142
1242
        limbo_name = self._limbo_files.get(trans_id)
1178
1278
        entries from _limbo_files, because they are now stale.
1179
1279
        """
1180
1280
        for trans_id in trans_ids:
1181
 
            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]
1182
1284
            if trans_id not in self._new_contents:
1183
1285
                continue
1184
1286
            new_path = self._limbo_name(trans_id)
1185
 
            osutils.rename(old_path, new_path)
 
1287
            os.rename(old_path, new_path)
 
1288
            self._possibly_stale_limbo_files.remove(old_path)
1186
1289
            for descendant in self._limbo_descendants(trans_id):
1187
1290
                desc_path = self._limbo_files[descendant]
1188
1291
                desc_path = new_path + desc_path[len(old_path):]
1195
1298
            descendants.update(self._limbo_descendants(descendant))
1196
1299
        return descendants
1197
1300
 
1198
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1301
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1199
1302
        """Schedule creation of a new file.
1200
1303
 
1201
 
        See also new_file.
1202
 
 
1203
 
        Contents is an iterator of strings, all of which will be written
1204
 
        to the target destination.
1205
 
 
1206
 
        New file takes the permissions of any existing file with that id,
1207
 
        unless mode_id is specified.
 
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.
1208
1314
        """
1209
1315
        name = self._limbo_name(trans_id)
1210
1316
        f = open(name, 'wb')
1211
1317
        try:
1212
 
            try:
1213
 
                unique_add(self._new_contents, trans_id, 'file')
1214
 
            except:
1215
 
                # Clean up the file, it never got registered so
1216
 
                # TreeTransform.finalize() won't clean it up.
1217
 
                f.close()
1218
 
                os.unlink(name)
1219
 
                raise
1220
 
 
 
1318
            unique_add(self._new_contents, trans_id, 'file')
1221
1319
            f.writelines(contents)
1222
1320
        finally:
1223
1321
            f.close()
1224
1322
        self._set_mtime(name)
1225
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))
1226
1329
 
1227
1330
    def _read_file_chunks(self, trans_id):
1228
1331
        cur_file = open(self._limbo_name(trans_id), 'rb')
1248
1351
        name = self._limbo_name(trans_id)
1249
1352
        try:
1250
1353
            os.link(path, name)
1251
 
        except OSError, e:
 
1354
        except OSError as e:
1252
1355
            if e.errno != errno.EPERM:
1253
1356
                raise
1254
1357
            raise errors.HardLinkNotSupported(path)
1287
1390
    def cancel_creation(self, trans_id):
1288
1391
        """Cancel the creation of new file contents."""
1289
1392
        del self._new_contents[trans_id]
 
1393
        if trans_id in self._observed_sha1s:
 
1394
            del self._observed_sha1s[trans_id]
1290
1395
        children = self._limbo_children.get(trans_id)
1291
1396
        # if this is a limbo directory with children, move them before removing
1292
1397
        # the directory
1296
1401
            del self._limbo_children_names[trans_id]
1297
1402
        delete_any(self._limbo_name(trans_id))
1298
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
 
1299
1480
 
1300
1481
class TreeTransform(DiskTreeTransform):
1301
1482
    """Represent a tree transformation.
1373
1554
        try:
1374
1555
            limbodir = urlutils.local_path_from_url(
1375
1556
                tree._transport.abspath('limbo'))
1376
 
            try:
1377
 
                os.mkdir(limbodir)
1378
 
            except OSError, e:
1379
 
                if e.errno == errno.EEXIST:
1380
 
                    raise ExistingLimbo(limbodir)
 
1557
            osutils.ensure_empty_directory_exists(
 
1558
                limbodir,
 
1559
                errors.ExistingLimbo)
1381
1560
            deletiondir = urlutils.local_path_from_url(
1382
1561
                tree._transport.abspath('pending-deletion'))
1383
 
            try:
1384
 
                os.mkdir(deletiondir)
1385
 
            except OSError, e:
1386
 
                if e.errno == errno.EEXIST:
1387
 
                    raise errors.ExistingPendingDeletion(deletiondir)
 
1562
            osutils.ensure_empty_directory_exists(
 
1563
                deletiondir,
 
1564
                errors.ExistingPendingDeletion)
1388
1565
        except:
1389
1566
            tree.unlock()
1390
1567
            raise
1419
1596
    def tree_kind(self, trans_id):
1420
1597
        """Determine the file kind in the working tree.
1421
1598
 
1422
 
        Raises NoSuchFile if the file does not exist
 
1599
        :returns: The file kind or None if the file does not exist
1423
1600
        """
1424
1601
        path = self._tree_id_paths.get(trans_id)
1425
1602
        if path is None:
1426
 
            raise NoSuchFile(None)
 
1603
            return None
1427
1604
        try:
1428
1605
            return file_kind(self._tree.abspath(path))
1429
 
        except OSError, e:
1430
 
            if e.errno != errno.ENOENT:
1431
 
                raise
1432
 
            else:
1433
 
                raise NoSuchFile(path)
 
1606
        except errors.NoSuchFile:
 
1607
            return None
1434
1608
 
1435
1609
    def _set_mode(self, trans_id, mode_id, typefunc):
1436
1610
        """Set the mode of new file contents.
1446
1620
            return
1447
1621
        try:
1448
1622
            mode = os.stat(self._tree.abspath(old_path)).st_mode
1449
 
        except OSError, e:
 
1623
        except OSError as e:
1450
1624
            if e.errno in (errno.ENOENT, errno.ENOTDIR):
1451
1625
                # Either old_path doesn't exist, or the parent of the
1452
1626
                # target is not a directory (but will be one eventually)
1456
1630
            else:
1457
1631
                raise
1458
1632
        if typefunc(mode):
1459
 
            os.chmod(self._limbo_name(trans_id), mode)
 
1633
            osutils.chmod_if_possible(self._limbo_name(trans_id), mode)
1460
1634
 
1461
1635
    def iter_tree_children(self, parent_id):
1462
1636
        """Iterate through the entry's tree children, if any"""
1466
1640
            return
1467
1641
        try:
1468
1642
            children = os.listdir(self._tree.abspath(path))
1469
 
        except OSError, e:
 
1643
        except OSError as e:
1470
1644
            if not (osutils._is_error_enotdir(e)
1471
1645
                    or e.errno in (errno.ENOENT, errno.ESRCH)):
1472
1646
                raise
1508
1682
                        in (trans_id, None)):
1509
1683
                        use_direct_path = True
1510
1684
                else:
1511
 
                    for l_filename, l_trans_id in\
1512
 
                        self._limbo_children_names[parent].iteritems():
 
1685
                    for l_filename, l_trans_id in viewitems(
 
1686
                            self._limbo_children_names[parent]):
1513
1687
                        if l_trans_id == trans_id:
1514
1688
                            continue
1515
1689
                        if l_filename.lower() == filename.lower():
1540
1714
            calculating one.
1541
1715
        :param _mover: Supply an alternate FileMover, for testing
1542
1716
        """
 
1717
        for hook in MutableTree.hooks['pre_transform']:
 
1718
            hook(self._tree, self)
1543
1719
        if not no_conflicts:
1544
1720
            self._check_malformed()
1545
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1721
        child_pb = ui.ui_factory.nested_progress_bar()
1546
1722
        try:
1547
1723
            if precomputed_delta is None:
1548
 
                child_pb.update('Apply phase', 0, 2)
 
1724
                child_pb.update(gettext('Apply phase'), 0, 2)
1549
1725
                inventory_delta = self._generate_inventory_delta()
1550
1726
                offset = 1
1551
1727
            else:
1556
1732
            else:
1557
1733
                mover = _mover
1558
1734
            try:
1559
 
                child_pb.update('Apply phase', 0 + offset, 2 + offset)
 
1735
                child_pb.update(gettext('Apply phase'), 0 + offset, 2 + offset)
1560
1736
                self._apply_removals(mover)
1561
 
                child_pb.update('Apply phase', 1 + offset, 2 + offset)
 
1737
                child_pb.update(gettext('Apply phase'), 1 + offset, 2 + offset)
1562
1738
                modified_paths = self._apply_insertions(mover)
1563
1739
            except:
1564
1740
                mover.rollback()
1567
1743
                mover.apply_deletions()
1568
1744
        finally:
1569
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] != '']
1570
1748
        self._tree.apply_inventory_delta(inventory_delta)
 
1749
        self._apply_observed_sha1s()
1571
1750
        self._done = True
1572
1751
        self.finalize()
1573
1752
        return _TransformResults(modified_paths, self.rename_count)
1575
1754
    def _generate_inventory_delta(self):
1576
1755
        """Generate an inventory delta for the current transform."""
1577
1756
        inventory_delta = []
1578
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1757
        child_pb = ui.ui_factory.nested_progress_bar()
1579
1758
        new_paths = self._inventory_altered()
1580
1759
        total_entries = len(new_paths) + len(self._removed_id)
1581
1760
        try:
1582
1761
            for num, trans_id in enumerate(self._removed_id):
1583
1762
                if (num % 10) == 0:
1584
 
                    child_pb.update('removing file', num, total_entries)
 
1763
                    child_pb.update(gettext('removing file'), num, total_entries)
1585
1764
                if trans_id == self._new_root:
1586
1765
                    file_id = self._tree.get_root_id()
1587
1766
                else:
1594
1773
            new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1595
1774
                                     new_paths)
1596
1775
            entries = self._tree.iter_entries_by_dir(
1597
 
                new_path_file_ids.values())
 
1776
                viewvalues(new_path_file_ids))
1598
1777
            old_paths = dict((e.file_id, p) for p, e in entries)
1599
1778
            final_kinds = {}
1600
1779
            for num, (path, trans_id) in enumerate(new_paths):
1601
1780
                if (num % 10) == 0:
1602
 
                    child_pb.update('adding file',
 
1781
                    child_pb.update(gettext('adding file'),
1603
1782
                                    num + len(self._removed_id), total_entries)
1604
1783
                file_id = new_path_file_ids[trans_id]
1605
1784
                if file_id is None:
1606
1785
                    continue
1607
1786
                needs_entry = False
1608
 
                try:
1609
 
                    kind = self.final_kind(trans_id)
1610
 
                except NoSuchFile:
 
1787
                kind = self.final_kind(trans_id)
 
1788
                if kind is None:
1611
1789
                    kind = self._tree.stored_kind(file_id)
1612
1790
                parent_trans_id = self.final_parent(trans_id)
1613
1791
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1642
1820
 
1643
1821
        If inventory_delta is None, no inventory delta generation is performed.
1644
1822
        """
1645
 
        tree_paths = list(self._tree_path_ids.iteritems())
1646
 
        tree_paths.sort(reverse=True)
1647
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1823
        tree_paths = sorted(viewitems(self._tree_path_ids), reverse=True)
 
1824
        child_pb = ui.ui_factory.nested_progress_bar()
1648
1825
        try:
1649
 
            for num, data in enumerate(tree_paths):
1650
 
                path, trans_id = data
1651
 
                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))
1652
1831
                full_path = self._tree.abspath(path)
1653
1832
                if trans_id in self._removed_contents:
1654
1833
                    delete_path = os.path.join(self._deletiondir, trans_id)
1657
1836
                      or trans_id in self._new_parent):
1658
1837
                    try:
1659
1838
                        mover.rename(full_path, self._limbo_name(trans_id))
1660
 
                    except OSError, e:
 
1839
                    except errors.TransformRenameFailed as e:
1661
1840
                        if e.errno != errno.ENOENT:
1662
1841
                            raise
1663
1842
                    else:
1679
1858
        modified_paths = []
1680
1859
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1681
1860
                                 new_paths)
1682
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1861
        child_pb = ui.ui_factory.nested_progress_bar()
1683
1862
        try:
1684
1863
            for num, (path, trans_id) in enumerate(new_paths):
1685
1864
                if (num % 10) == 0:
1686
 
                    child_pb.update('adding file', num, len(new_paths))
 
1865
                    child_pb.update(gettext('adding file'), num, len(new_paths))
1687
1866
                full_path = self._tree.abspath(path)
1688
1867
                if trans_id in self._needs_rename:
1689
1868
                    try:
1690
1869
                        mover.rename(self._limbo_name(trans_id), full_path)
1691
 
                    except OSError, e:
 
1870
                    except errors.TransformRenameFailed as e:
1692
1871
                        # We may be renaming a dangling inventory id
1693
1872
                        if e.errno != errno.ENOENT:
1694
1873
                            raise
1695
1874
                    else:
1696
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.
1697
1879
                if (trans_id in self._new_contents or
1698
1880
                    self.path_changed(trans_id)):
1699
1881
                    if trans_id in self._new_contents:
1700
1882
                        modified_paths.append(full_path)
1701
1883
                if trans_id in self._new_executability:
1702
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)
1703
1889
        finally:
1704
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]
1705
1896
        self._new_contents.clear()
1706
1897
        return modified_paths
1707
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
 
1708
1922
 
1709
1923
class TransformPreview(DiskTreeTransform):
1710
1924
    """A TreeTransform for generating preview trees.
1725
1939
    def tree_kind(self, trans_id):
1726
1940
        path = self._tree_id_paths.get(trans_id)
1727
1941
        if path is None:
1728
 
            raise NoSuchFile(None)
1729
 
        file_id = self._tree.path2id(path)
1730
 
        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
1731
1947
 
1732
1948
    def _set_mode(self, trans_id, mode_id, typefunc):
1733
1949
        """Set the mode of new file contents.
1753
1969
            childpath = joinpath(path, child)
1754
1970
            yield self.trans_id_tree_path(childpath)
1755
1971
 
1756
 
 
1757
 
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):
1758
1977
    """Partial implementation of Tree to support show_diff_trees"""
1759
1978
 
1760
1979
    def __init__(self, transform):
1789
2008
                yield self._get_repository().revision_tree(revision_id)
1790
2009
 
1791
2010
    def _get_file_revision(self, file_id, vf, tree_revision):
1792
 
        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
1793
2012
                       self._iter_parent_trees()]
1794
2013
        vf.add_lines((file_id, tree_revision), parent_keys,
1795
 
                     self.get_file(file_id).readlines())
 
2014
                     self.get_file_lines(file_id))
1796
2015
        repo = self._get_repository()
1797
2016
        base_vf = repo.texts
1798
2017
        if base_vf not in vf.fallback_versionedfiles:
1799
2018
            vf.fallback_versionedfiles.append(base_vf)
1800
2019
        return tree_revision
1801
2020
 
1802
 
    def _stat_limbo_file(self, file_id):
1803
 
        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)
1804
2024
        name = self._transform._limbo_name(trans_id)
1805
2025
        return os.lstat(name)
1806
2026
 
1831
2051
        pass
1832
2052
 
1833
2053
    @property
1834
 
    def inventory(self):
 
2054
    def root_inventory(self):
1835
2055
        """This Tree does not use inventory as its backing data."""
1836
 
        raise NotImplementedError(_PreviewTree.inventory)
 
2056
        raise NotImplementedError(_PreviewTree.root_inventory)
1837
2057
 
1838
2058
    def get_root_id(self):
1839
2059
        return self._transform.final_file_id(self._transform.root)
1842
2062
        tree_ids = set(self._transform._tree.all_file_ids())
1843
2063
        tree_ids.difference_update(self._transform.tree_file_id(t)
1844
2064
                                   for t in self._transform._removed_id)
1845
 
        tree_ids.update(self._transform._new_id.values())
 
2065
        tree_ids.update(viewvalues(self._transform._new_id))
1846
2066
        return tree_ids
1847
2067
 
1848
2068
    def __iter__(self):
1851
2071
    def _has_id(self, file_id, fallback_check):
1852
2072
        if file_id in self._transform._r_new_id:
1853
2073
            return True
1854
 
        elif file_id in set([self._transform.tree_file_id(trans_id) for
1855
 
            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}:
1856
2076
            return False
1857
2077
        else:
1858
2078
            return fallback_check(file_id)
1886
2106
        return cur_parent
1887
2107
 
1888
2108
    def path2id(self, path):
 
2109
        if isinstance(path, list):
 
2110
            if path == []:
 
2111
                path = [""]
 
2112
            path = osutils.pathjoin(*path)
1889
2113
        return self._transform.final_file_id(self._path2trans_id(path))
1890
2114
 
1891
2115
    def id2path(self, file_id):
1901
2125
            return children
1902
2126
        children = set(self._transform.iter_tree_children(trans_id))
1903
2127
        # children in the _new_parent set are provided by _by_parent.
1904
 
        children.difference_update(self._transform._new_parent.keys())
 
2128
        children.difference_update(self._transform._new_parent)
1905
2129
        children.update(self._by_parent.get(trans_id, []))
1906
2130
        self._all_children_cache[trans_id] = children
1907
2131
        return children
1929
2153
            if (specific_file_ids is not None
1930
2154
                and file_id not in specific_file_ids):
1931
2155
                continue
1932
 
            try:
1933
 
                kind = self._transform.final_kind(trans_id)
1934
 
            except NoSuchFile:
 
2156
            kind = self._transform.final_kind(trans_id)
 
2157
            if kind is None:
1935
2158
                kind = self._transform._tree.stored_kind(file_id)
1936
2159
            new_entry = inventory.make_entry(
1937
2160
                kind,
1953
2176
                ordered_ids.append((trans_id, parent_file_id))
1954
2177
        return ordered_ids
1955
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
 
1956
2187
    def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1957
2188
        # This may not be a maximally efficient implementation, but it is
1958
2189
        # reasonably straightforward.  An implementation that grafts the
2022
2253
 
2023
2254
    def get_file_size(self, file_id):
2024
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
2025
2262
        if self.kind(file_id) == 'file':
2026
2263
            return self._transform._tree.get_file_size(file_id)
2027
2264
        else:
2028
2265
            return None
2029
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
 
2030
2279
    def get_file_sha1(self, file_id, path=None, stat_value=None):
2031
2280
        trans_id = self._transform.trans_id_file_id(file_id)
2032
2281
        kind = self._transform._new_contents.get(trans_id)
2048
2297
        except KeyError:
2049
2298
            try:
2050
2299
                return self._transform._tree.is_executable(file_id, path)
2051
 
            except OSError, e:
 
2300
            except OSError as e:
2052
2301
                if e.errno == errno.ENOENT:
2053
2302
                    return False
2054
2303
                raise
2055
2304
            except errors.NoSuchId:
2056
2305
                return False
2057
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
 
2058
2316
    def path_content_summary(self, path):
2059
2317
        trans_id = self._path2trans_id(path)
2060
2318
        tt = self._transform
2073
2331
            if kind == 'file':
2074
2332
                statval = os.lstat(limbo_name)
2075
2333
                size = statval.st_size
2076
 
                if not supports_executable():
 
2334
                if not tt._limbo_supports_executable():
2077
2335
                    executable = False
2078
2336
                else:
2079
2337
                    executable = statval.st_mode & S_IEXEC
2148
2406
                                   self.get_file(file_id).readlines(),
2149
2407
                                   default_revision)
2150
2408
 
2151
 
    def get_symlink_target(self, file_id):
 
2409
    def get_symlink_target(self, file_id, path=None):
2152
2410
        """See Tree.get_symlink_target"""
2153
2411
        if not self._content_change(file_id):
2154
2412
            return self._transform._tree.get_symlink_target(file_id)
2169
2427
                path_from_root = self._final_paths.get_path(child_id)
2170
2428
                basename = self._transform.final_name(child_id)
2171
2429
                file_id = self._transform.final_file_id(child_id)
2172
 
                try:
2173
 
                    kind = self._transform.final_kind(child_id)
 
2430
                kind  = self._transform.final_kind(child_id)
 
2431
                if kind is not None:
2174
2432
                    versioned_kind = kind
2175
 
                except NoSuchFile:
 
2433
                else:
2176
2434
                    kind = 'unknown'
2177
2435
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2178
2436
                if versioned_kind == 'directory':
2291
2549
    for num, _unused in enumerate(wt.all_file_ids()):
2292
2550
        if num > 0:  # more than just a root
2293
2551
            raise errors.WorkingTreeAlreadyPopulated(base=wt.basedir)
2294
 
    existing_files = set()
2295
 
    for dir, files in wt.walkdirs():
2296
 
        existing_files.update(f[0] for f in files)
2297
2552
    file_trans_id = {}
2298
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2553
    top_pb = ui.ui_factory.nested_progress_bar()
2299
2554
    pp = ProgressPhase("Build phase", 2, top_pb)
2300
 
    if tree.inventory.root is not None:
 
2555
    if tree.get_root_id() is not None:
2301
2556
        # This is kind of a hack: we should be altering the root
2302
2557
        # as part of the regular tree shape diff logic.
2303
2558
        # The conditional test here is to avoid doing an
2314
2569
        pp.next_phase()
2315
2570
        file_trans_id[wt.get_root_id()] = \
2316
2571
            tt.trans_id_tree_file_id(wt.get_root_id())
2317
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2572
        pb = ui.ui_factory.nested_progress_bar()
2318
2573
        try:
2319
2574
            deferred_contents = []
2320
2575
            num = 0
2321
 
            total = len(tree.inventory)
 
2576
            total = len(tree.all_file_ids())
2322
2577
            if delta_from_tree:
2323
2578
                precomputed_delta = []
2324
2579
            else:
2325
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)
2326
2590
            for num, (tree_path, entry) in \
2327
 
                enumerate(tree.inventory.iter_entries_by_dir()):
2328
 
                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)
2329
2593
                if entry.parent_id is None:
2330
2594
                    continue
2331
2595
                reparent = False
2337
2601
                    kind = file_kind(target_path)
2338
2602
                    if kind == "directory":
2339
2603
                        try:
2340
 
                            bzrdir.BzrDir.open(target_path)
 
2604
                            controldir.ControlDir.open(target_path)
2341
2605
                        except errors.NotBranchError:
2342
2606
                            pass
2343
2607
                        else:
2358
2622
                    executable = tree.is_executable(file_id, tree_path)
2359
2623
                    if executable:
2360
2624
                        tt.set_executability(executable, trans_id)
2361
 
                    trans_data = (trans_id, tree_path)
 
2625
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2362
2626
                    deferred_contents.append((file_id, trans_data))
2363
2627
                else:
2364
2628
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2380
2644
            precomputed_delta = None
2381
2645
        conflicts = cook_conflicts(raw_conflicts, tt)
2382
2646
        for conflict in conflicts:
2383
 
            warning(conflict)
 
2647
            trace.warning(unicode(conflict))
2384
2648
        try:
2385
2649
            wt.add_conflicts(conflicts)
2386
2650
        except errors.UnsupportedOperation:
2405
2669
                     in iter if not (c or e[0] != e[1])]
2406
2670
        if accelerator_tree.supports_content_filtering():
2407
2671
            unchanged = [(f, p) for (f, p) in unchanged
2408
 
                         if not accelerator_tree.iter_search_rules([p]).next()]
 
2672
                         if not next(accelerator_tree.iter_search_rules([p]))]
2409
2673
        unchanged = dict(unchanged)
2410
2674
        new_desired_files = []
2411
2675
        count = 0
2412
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2676
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2413
2677
            accelerator_path = unchanged.get(file_id)
2414
2678
            if accelerator_path is None:
2415
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2679
                new_desired_files.append((file_id,
 
2680
                    (trans_id, tree_path, text_sha1)))
2416
2681
                continue
2417
 
            pb.update('Adding file contents', count + offset, total)
 
2682
            pb.update(gettext('Adding file contents'), count + offset, total)
2418
2683
            if hardlink:
2419
2684
                tt.create_hardlink(accelerator_tree.abspath(accelerator_path),
2420
2685
                                   trans_id)
2425
2690
                    contents = filtered_output_bytes(contents, filters,
2426
2691
                        ContentFilterContext(tree_path, tree))
2427
2692
                try:
2428
 
                    tt.create_file(contents, trans_id)
 
2693
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2429
2694
                finally:
2430
2695
                    try:
2431
2696
                        contents.close()
2434
2699
                        pass
2435
2700
            count += 1
2436
2701
        offset += count
2437
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2702
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2438
2703
            tree.iter_files_bytes(new_desired_files)):
2439
2704
        if wt.supports_content_filtering():
2440
2705
            filters = wt._content_filter_stack(tree_path)
2441
2706
            contents = filtered_output_bytes(contents, filters,
2442
2707
                ContentFilterContext(tree_path, tree))
2443
 
        tt.create_file(contents, trans_id)
2444
 
        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)
2445
2710
 
2446
2711
 
2447
2712
def _reparent_children(tt, old_parent, new_parent):
2448
2713
    for child in tt.iter_tree_children(old_parent):
2449
2714
        tt.adjust_path(tt.final_name(child), new_parent, child)
2450
2715
 
 
2716
 
2451
2717
def _reparent_transform_children(tt, old_parent, new_parent):
2452
2718
    by_parent = tt.by_parent()
2453
2719
    for child in by_parent[old_parent]:
2454
2720
        tt.adjust_path(tt.final_name(child), new_parent, child)
2455
2721
    return by_parent[old_parent]
2456
2722
 
 
2723
 
2457
2724
def _content_match(tree, entry, file_id, kind, target_path):
2458
2725
    if entry.kind != kind:
2459
2726
        return False
2460
2727
    if entry.kind == "directory":
2461
2728
        return True
2462
2729
    if entry.kind == "file":
2463
 
        if tree.get_file(file_id).read() == file(target_path, 'rb').read():
2464
 
            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()
2465
2736
    elif entry.kind == "symlink":
2466
2737
        if tree.get_symlink_target(file_id) == os.readlink(target_path):
2467
2738
            return True
2519
2790
        raise errors.BadFileKindError(name, kind)
2520
2791
 
2521
2792
 
2522
 
@deprecated_function(deprecated_in((1, 9, 0)))
2523
 
def create_by_entry(tt, entry, tree, trans_id, lines=None, mode_id=None):
2524
 
    """Create new file contents according to an inventory entry.
2525
 
 
2526
 
    DEPRECATED.  Use create_from_tree instead.
2527
 
    """
2528
 
    if entry.kind == "file":
2529
 
        if lines is None:
2530
 
            lines = tree.get_file(entry.file_id).readlines()
2531
 
        tt.create_file(lines, trans_id, mode_id=mode_id)
2532
 
    elif entry.kind == "symlink":
2533
 
        tt.create_symlink(tree.get_symlink_target(entry.file_id), trans_id)
2534
 
    elif entry.kind == "directory":
2535
 
        tt.create_directory(trans_id)
2536
 
 
2537
 
 
2538
2793
def create_from_tree(tt, trans_id, tree, file_id, bytes=None,
2539
2794
    filter_tree_path=None):
2540
2795
    """Create new file contents according to tree contents.
2571
2826
        tt.set_executability(entry.executable, trans_id)
2572
2827
 
2573
2828
 
2574
 
def get_backup_name(entry, by_parent, parent_trans_id, tt):
2575
 
    return _get_backup_name(entry.name, by_parent, parent_trans_id, tt)
2576
 
 
2577
 
 
2578
 
def _get_backup_name(name, by_parent, parent_trans_id, tt):
2579
 
    """Produce a backup-style name that appears to be available"""
2580
 
    def name_gen():
2581
 
        counter = 1
2582
 
        while True:
2583
 
            yield "%s.~%d~" % (name, counter)
2584
 
            counter += 1
2585
 
    for new_name in name_gen():
2586
 
        if not tt.has_named_child(by_parent, parent_trans_id, new_name):
2587
 
            return new_name
2588
 
 
2589
 
 
2590
 
def _entry_changes(file_id, entry, working_tree):
2591
 
    """Determine in which ways the inventory entry has changed.
2592
 
 
2593
 
    Returns booleans: has_contents, content_mod, meta_mod
2594
 
    has_contents means there are currently contents, but they differ
2595
 
    contents_mod means contents need to be modified
2596
 
    meta_mod means the metadata needs to be modified
2597
 
    """
2598
 
    cur_entry = working_tree.inventory[file_id]
2599
 
    try:
2600
 
        working_kind = working_tree.kind(file_id)
2601
 
        has_contents = True
2602
 
    except NoSuchFile:
2603
 
        has_contents = False
2604
 
        contents_mod = True
2605
 
        meta_mod = False
2606
 
    if has_contents is True:
2607
 
        if entry.kind != working_kind:
2608
 
            contents_mod, meta_mod = True, False
2609
 
        else:
2610
 
            cur_entry._read_tree_state(working_tree.id2path(file_id),
2611
 
                                       working_tree)
2612
 
            contents_mod, meta_mod = entry.detect_changes(cur_entry)
2613
 
            cur_entry._forget_tree_state()
2614
 
    return has_contents, contents_mod, meta_mod
2615
 
 
2616
 
 
2617
2829
def revert(working_tree, target_tree, filenames, backups=False,
2618
2830
           pb=None, change_reporter=None):
2619
2831
    """Revert a working tree's contents to those of a target tree."""
2629
2841
                unversioned_filter=working_tree.is_ignored)
2630
2842
            delta.report_changes(tt.iter_changes(), change_reporter)
2631
2843
        for conflict in conflicts:
2632
 
            warning(conflict)
 
2844
            trace.warning(unicode(conflict))
2633
2845
        pp.next_phase()
2634
2846
        tt.apply()
2635
2847
        working_tree.set_merge_modified(merge_modified)
2643
2855
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2644
2856
                              backups, pp, basis_tree=None,
2645
2857
                              merge_modified=None):
2646
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2858
    child_pb = ui.ui_factory.nested_progress_bar()
2647
2859
    try:
2648
2860
        if merge_modified is None:
2649
2861
            merge_modified = working_tree.merge_modified()
2652
2864
                                      merge_modified, basis_tree)
2653
2865
    finally:
2654
2866
        child_pb.finished()
2655
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2867
    child_pb = ui.ui_factory.nested_progress_bar()
2656
2868
    try:
2657
2869
        raw_conflicts = resolve_conflicts(tt, child_pb,
2658
2870
            lambda t, c: conflict_pass(t, c, target_tree))
2666
2878
                 backups, merge_modified, basis_tree=None):
2667
2879
    if basis_tree is not None:
2668
2880
        basis_tree.lock_read()
2669
 
    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,
2670
2886
        specific_files=specific_files, pb=pb)
2671
2887
    if target_tree.get_root_id() is None:
2672
2888
        skip_root = True
2676
2892
        deferred_files = []
2677
2893
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2678
2894
                kind, executable) in enumerate(change_list):
2679
 
            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:
2680
2902
                continue
2681
2903
            trans_id = tt.trans_id_file_id(file_id)
2682
2904
            mode_id = None
2683
2905
            if changed_content:
2684
2906
                keep_content = False
2685
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2907
                if wt_kind == 'file' and (backups or target_kind is None):
2686
2908
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2687
2909
                    if merge_modified.get(file_id) != wt_sha1:
2688
2910
                        # acquire the basis tree lazily to prevent the
2691
2913
                        if basis_tree is None:
2692
2914
                            basis_tree = working_tree.basis_tree()
2693
2915
                            basis_tree.lock_read()
2694
 
                        if file_id in basis_tree:
 
2916
                        if basis_tree.has_id(file_id):
2695
2917
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2696
2918
                                keep_content = True
2697
 
                        elif kind[1] is None and not versioned[1]:
 
2919
                        elif target_kind is None and not target_versioned:
2698
2920
                            keep_content = True
2699
 
                if kind[0] is not None:
 
2921
                if wt_kind is not None:
2700
2922
                    if not keep_content:
2701
2923
                        tt.delete_contents(trans_id)
2702
 
                    elif kind[1] is not None:
2703
 
                        parent_trans_id = tt.trans_id_file_id(parent[0])
2704
 
                        by_parent = tt.by_parent()
2705
 
                        backup_name = _get_backup_name(name[0], by_parent,
2706
 
                                                       parent_trans_id, tt)
 
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)
2707
2928
                        tt.adjust_path(backup_name, parent_trans_id, trans_id)
2708
 
                        new_trans_id = tt.create_path(name[0], parent_trans_id)
2709
 
                        if versioned == (True, True):
 
2929
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2930
                        if wt_versioned and target_versioned:
2710
2931
                            tt.unversion_file(trans_id)
2711
2932
                            tt.version_file(file_id, new_trans_id)
2712
2933
                        # New contents should have the same unix perms as old
2713
2934
                        # contents
2714
2935
                        mode_id = trans_id
2715
2936
                        trans_id = new_trans_id
2716
 
                if kind[1] in ('directory', 'tree-reference'):
 
2937
                if target_kind in ('directory', 'tree-reference'):
2717
2938
                    tt.create_directory(trans_id)
2718
 
                    if kind[1] == 'tree-reference':
 
2939
                    if target_kind == 'tree-reference':
2719
2940
                        revision = target_tree.get_reference_revision(file_id,
2720
 
                                                                      path[1])
 
2941
                                                                      target_path)
2721
2942
                        tt.set_tree_reference(revision, trans_id)
2722
 
                elif kind[1] == 'symlink':
 
2943
                elif target_kind == 'symlink':
2723
2944
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2724
2945
                                      trans_id)
2725
 
                elif kind[1] == 'file':
 
2946
                elif target_kind == 'file':
2726
2947
                    deferred_files.append((file_id, (trans_id, mode_id)))
2727
2948
                    if basis_tree is None:
2728
2949
                        basis_tree = working_tree.basis_tree()
2729
2950
                        basis_tree.lock_read()
2730
2951
                    new_sha1 = target_tree.get_file_sha1(file_id)
2731
 
                    if (file_id in basis_tree and new_sha1 ==
2732
 
                        basis_tree.get_file_sha1(file_id)):
 
2952
                    if (basis_tree.has_id(file_id) and
 
2953
                        new_sha1 == basis_tree.get_file_sha1(file_id)):
2733
2954
                        if file_id in merge_modified:
2734
2955
                            del merge_modified[file_id]
2735
2956
                    else:
2736
2957
                        merge_modified[file_id] = new_sha1
2737
2958
 
2738
2959
                    # preserve the execute bit when backing up
2739
 
                    if keep_content and executable[0] == executable[1]:
2740
 
                        tt.set_executability(executable[1], trans_id)
2741
 
                elif kind[1] is not None:
2742
 
                    raise AssertionError(kind[1])
2743
 
            if versioned == (False, True):
 
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:
2744
2965
                tt.version_file(file_id, trans_id)
2745
 
            if versioned == (True, False):
 
2966
            if wt_versioned and not target_versioned:
2746
2967
                tt.unversion_file(trans_id)
2747
 
            if (name[1] is not None and
2748
 
                (name[0] != name[1] or parent[0] != parent[1])):
2749
 
                if name[1] == '' and parent[1] is None:
 
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:
2750
2971
                    parent_trans = ROOT_PARENT
2751
2972
                else:
2752
 
                    parent_trans = tt.trans_id_file_id(parent[1])
2753
 
                if parent[0] is None and versioned[0]:
2754
 
                    tt.adjust_root_path(name[1], parent_trans)
 
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)
2755
2976
                else:
2756
 
                    tt.adjust_path(name[1], parent_trans, trans_id)
2757
 
            if executable[0] != executable[1] and kind[1] == "file":
2758
 
                tt.set_executability(executable[1], trans_id)
 
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)
2759
2980
        if working_tree.supports_content_filtering():
2760
2981
            for index, ((trans_id, mode_id), bytes) in enumerate(
2761
2982
                target_tree.iter_files_bytes(deferred_files)):
2787
3008
    pb = ui.ui_factory.nested_progress_bar()
2788
3009
    try:
2789
3010
        for n in range(10):
2790
 
            pb.update('Resolution pass', n+1, 10)
 
3011
            pb.update(gettext('Resolution pass'), n+1, 10)
2791
3012
            conflicts = tt.find_conflicts()
2792
3013
            if len(conflicts) == 0:
2793
3014
                return new_conflicts
2817
3038
                existing_file, new_file = conflict[2], conflict[1]
2818
3039
            else:
2819
3040
                existing_file, new_file = conflict[1], conflict[2]
2820
 
            new_name = tt.final_name(existing_file)+'.moved'
 
3041
            new_name = tt.final_name(existing_file) + '.moved'
2821
3042
            tt.adjust_path(new_name, final_parent, existing_file)
2822
3043
            new_conflicts.add((c_type, 'Moved existing file to',
2823
3044
                               existing_file, new_file))
2832
3053
 
2833
3054
        elif c_type == 'missing parent':
2834
3055
            trans_id = conflict[1]
2835
 
            try:
2836
 
                tt.cancel_deletion(trans_id)
2837
 
                new_conflicts.add(('deleting parent', 'Not deleting',
2838
 
                                   trans_id))
2839
 
            except KeyError:
 
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:
2840
3080
                create = True
2841
3081
                try:
2842
3082
                    tt.final_name(trans_id)
2845
3085
                        file_id = tt.final_file_id(trans_id)
2846
3086
                        if file_id is None:
2847
3087
                            file_id = tt.inactive_file_id(trans_id)
2848
 
                        entry = path_tree.inventory[file_id]
 
3088
                        _, entry = next(path_tree.iter_entries_by_dir(
 
3089
                            [file_id]))
2849
3090
                        # special-case the other tree root (move its
2850
3091
                        # children to current root)
2851
3092
                        if entry.parent_id is None:
2866
3107
        elif c_type == 'unversioned parent':
2867
3108
            file_id = tt.inactive_file_id(conflict[1])
2868
3109
            # special-case the other tree root (move its children instead)
2869
 
            if path_tree and file_id in path_tree:
2870
 
                if path_tree.inventory[file_id].parent_id is None:
 
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
2871
3113
                    continue
2872
3114
            tt.version_file(file_id, conflict[1])
2873
3115
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2889
3131
 
2890
3132
def cook_conflicts(raw_conflicts, tt):
2891
3133
    """Generate a list of cooked conflicts, sorted by file path"""
2892
 
    from bzrlib.conflicts import Conflict
2893
3134
    conflict_iter = iter_cook_conflicts(raw_conflicts, tt)
2894
 
    return sorted(conflict_iter, key=Conflict.sort_key)
 
3135
    return sorted(conflict_iter, key=conflicts.Conflict.sort_key)
2895
3136
 
2896
3137
 
2897
3138
def iter_cook_conflicts(raw_conflicts, tt):
2898
 
    from bzrlib.conflicts import Conflict
2899
3139
    fp = FinalPaths(tt)
2900
3140
    for conflict in raw_conflicts:
2901
3141
        c_type = conflict[0]
2903
3143
        modified_path = fp.get_path(conflict[2])
2904
3144
        modified_id = tt.final_file_id(conflict[2])
2905
3145
        if len(conflict) == 3:
2906
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2907
 
                                     file_id=modified_id)
 
3146
            yield conflicts.Conflict.factory(
 
3147
                c_type, action=action, path=modified_path, file_id=modified_id)
2908
3148
 
2909
3149
        else:
2910
3150
            conflicting_path = fp.get_path(conflict[3])
2911
3151
            conflicting_id = tt.final_file_id(conflict[3])
2912
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2913
 
                                   file_id=modified_id,
2914
 
                                   conflict_path=conflicting_path,
2915
 
                                   conflict_file_id=conflicting_id)
 
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)
2916
3157
 
2917
3158
 
2918
3159
class _FileMover(object):
2925
3166
    def rename(self, from_, to):
2926
3167
        """Rename a file from one path to another."""
2927
3168
        try:
2928
 
            osutils.rename(from_, to)
2929
 
        except OSError, e:
 
3169
            os.rename(from_, to)
 
3170
        except OSError as e:
2930
3171
            if e.errno in (errno.EEXIST, errno.ENOTEMPTY):
2931
3172
                raise errors.FileExists(to, str(e))
2932
 
            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)
2933
3176
        self.past_renames.append((from_, to))
2934
3177
 
2935
3178
    def pre_delete(self, from_, to):
2945
3188
    def rollback(self):
2946
3189
        """Reverse all renames that have been performed"""
2947
3190
        for from_, to in reversed(self.past_renames):
2948
 
            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)
2949
3195
        # after rollback, don't reuse _FileMover
2950
3196
        past_renames = None
2951
3197
        pending_deletions = None