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  • Committer: Martin
  • Date: 2017-06-05 20:48:31 UTC
  • mto: This revision was merged to the branch mainline in revision 6658.
  • Revision ID: gzlist@googlemail.com-20170605204831-20accykspjcrx0a8
Apply 2to3 dict fixer and clean up resulting mess using view helpers

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1
 
# Copyright (C) 2006-2010 Canonical Ltd
 
1
# Copyright (C) 2006-2011 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
16
 
 
17
from __future__ import absolute_import
 
18
 
17
19
import os
18
20
import errno
19
21
from stat import S_ISREG, S_IEXEC
20
22
import time
21
23
 
22
 
from bzrlib.lazy_import import lazy_import
23
 
lazy_import(globals(), """
24
 
from bzrlib import (
 
24
from . import (
 
25
    config as _mod_config,
 
26
    errors,
 
27
    lazy_import,
 
28
    registry,
 
29
    trace,
 
30
    tree,
 
31
    )
 
32
lazy_import.lazy_import(globals(), """
 
33
from breezy import (
25
34
    annotate,
26
35
    bencode,
27
 
    bzrdir,
 
36
    controldir,
28
37
    commit,
 
38
    conflicts,
29
39
    delta,
30
 
    errors,
31
40
    inventory,
32
41
    multiparent,
33
42
    osutils,
34
43
    revision as _mod_revision,
35
44
    ui,
 
45
    urlutils,
36
46
    )
 
47
from breezy.i18n import gettext
37
48
""")
38
 
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
 
49
from .errors import (DuplicateKey, MalformedTransform,
39
50
                           ReusingTransform, CantMoveRoot,
40
 
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
 
51
                           ImmortalLimbo, NoFinalPath,
41
52
                           UnableCreateSymlink)
42
 
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
43
 
from bzrlib.inventory import InventoryEntry
44
 
from bzrlib.osutils import (
 
53
from .filters import filtered_output_bytes, ContentFilterContext
 
54
from .mutabletree import MutableTree
 
55
from .osutils import (
45
56
    delete_any,
46
57
    file_kind,
47
58
    has_symlinks,
48
 
    lexists,
49
59
    pathjoin,
50
60
    sha_file,
51
61
    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
 
62
    )
 
63
from .progress import ProgressPhase
 
64
from .sixish import (
 
65
    viewitems,
 
66
    viewvalues,
 
67
    )
63
68
 
64
69
 
65
70
ROOT_PARENT = "root-parent"
66
71
 
67
 
 
68
72
def unique_add(map, key, value):
69
73
    if key in map:
70
74
        raise DuplicateKey(key=key)
71
75
    map[key] = value
72
76
 
73
77
 
 
78
 
74
79
class _TransformResults(object):
75
80
    def __init__(self, modified_paths, rename_count):
76
81
        object.__init__(self)
100
105
        self._new_parent = {}
101
106
        # mapping of trans_id with new contents -> new file_kind
102
107
        self._new_contents = {}
 
108
        # mapping of trans_id => (sha1 of content, stat_value)
 
109
        self._observed_sha1s = {}
103
110
        # Set of trans_ids whose contents will be removed
104
111
        self._removed_contents = set()
105
112
        # Mapping of trans_id -> new execute-bit value
124
131
            self._new_root = self.trans_id_tree_file_id(root_id)
125
132
        else:
126
133
            self._new_root = None
127
 
        # Indictor of whether the transform has been applied
 
134
        # Indicator of whether the transform has been applied
128
135
        self._done = False
129
136
        # A progress bar
130
137
        self._pb = pb
133
140
        # A counter of how many files have been renamed
134
141
        self.rename_count = 0
135
142
 
 
143
    def __enter__(self):
 
144
        """Support Context Manager API."""
 
145
        return self
 
146
 
 
147
    def __exit__(self, exc_type, exc_val, exc_tb):
 
148
        """Support Context Manager API."""
 
149
        self.finalize()
 
150
 
136
151
    def finalize(self):
137
152
        """Release the working tree lock, if held.
138
153
 
141
156
        """
142
157
        if self._tree is None:
143
158
            return
 
159
        for hook in MutableTree.hooks['post_transform']:
 
160
            hook(self._tree, self)
144
161
        self._tree.unlock()
145
162
        self._tree = None
146
163
 
213
230
        This means that the old root trans-id becomes obsolete, so it is
214
231
        recommended only to invoke this after the root trans-id has become
215
232
        irrelevant.
 
233
 
216
234
        """
217
 
        new_roots = [k for k, v in self._new_parent.iteritems() if v is
218
 
                     ROOT_PARENT]
 
235
        new_roots = [k for k, v in viewitems(self._new_parent)
 
236
                     if v == ROOT_PARENT]
219
237
        if len(new_roots) < 1:
220
238
            return
221
239
        if len(new_roots) != 1:
224
242
            self._new_root = new_roots[0]
225
243
            return
226
244
        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
245
        # unversion the new root's directory.
233
 
        file_id = self.final_file_id(old_new_root)
 
246
        if self.final_kind(self._new_root) is None:
 
247
            file_id = self.final_file_id(old_new_root)
 
248
        else:
 
249
            file_id = self.final_file_id(self._new_root)
234
250
        if old_new_root in self._new_id:
235
251
            self.cancel_versioning(old_new_root)
236
252
        else:
240
256
        if (self.tree_file_id(self._new_root) is not None and
241
257
            self._new_root not in self._removed_id):
242
258
            self.unversion_file(self._new_root)
243
 
        self.version_file(file_id, self._new_root)
 
259
        if file_id is not None:
 
260
            self.version_file(file_id, self._new_root)
244
261
 
245
262
        # Now move children of new root into old root directory.
246
263
        # Ensure all children are registered with the transaction, but don't
287
304
            return self._r_new_id[file_id]
288
305
        else:
289
306
            try:
290
 
                self._tree.iter_entries_by_dir([file_id]).next()
 
307
                next(self._tree.iter_entries_by_dir([file_id]))
291
308
            except StopIteration:
292
309
                if file_id in self._non_present_ids:
293
310
                    return self._non_present_ids[file_id]
315
332
 
316
333
    def delete_contents(self, trans_id):
317
334
        """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)
 
335
        kind = self.tree_kind(trans_id)
 
336
        if kind is not None:
 
337
            self._removed_contents.add(trans_id)
322
338
 
323
339
    def cancel_deletion(self, trans_id):
324
340
        """Cancel a scheduled deletion"""
381
397
        return sorted(FinalPaths(self).get_paths(new_ids))
382
398
 
383
399
    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,
 
400
        """Determine which trans_ids need new Inventory entries.
 
401
 
 
402
        An new entry is needed when anything that would be reflected by an
 
403
        inventory entry changes, including file name, file_id, parent file_id,
 
404
        file kind, and the execute bit.
 
405
 
 
406
        Some care is taken to return entries with real changes, not cases
 
407
        where the value is deleted and then restored to its original value,
 
408
        but some actually unchanged values may be returned.
 
409
 
 
410
        :returns: A list of (path, trans_id) for all items requiring an
 
411
            inventory change. Ordered by path.
 
412
        """
 
413
        changed_ids = set()
 
414
        # Find entries whose file_ids are new (or changed).
 
415
        new_file_id = set(t for t in self._new_id
 
416
                          if self._new_id[t] != self.tree_file_id(t))
 
417
        for id_set in [self._new_name, self._new_parent, new_file_id,
387
418
                       self._new_executability]:
388
 
            new_ids.update(id_set)
 
419
            changed_ids.update(id_set)
 
420
        # removing implies a kind change
389
421
        changed_kind = set(self._removed_contents)
 
422
        # so does adding
390
423
        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))
 
424
        # Ignore entries that are already known to have changed.
 
425
        changed_kind.difference_update(changed_ids)
 
426
        #  to keep only the truly changed ones
 
427
        changed_kind = (t for t in changed_kind
 
428
                        if self.tree_kind(t) != self.final_kind(t))
 
429
        # all kind changes will alter the inventory
 
430
        changed_ids.update(changed_kind)
 
431
        # To find entries with changed parent_ids, find parents which existed,
 
432
        # but changed file_id.
 
433
        changed_file_id = set(t for t in new_file_id if t in self._removed_id)
 
434
        # Now add all their children to the set.
 
435
        for parent_trans_id in new_file_id:
 
436
            changed_ids.update(self.iter_tree_children(parent_trans_id))
 
437
        return sorted(FinalPaths(self).get_paths(changed_ids))
396
438
 
397
439
    def final_kind(self, trans_id):
398
440
        """Determine the final file kind, after any changes applied.
399
441
 
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)
 
442
        :return: None if the file does not exist/has no contents.  (It is
 
443
            conceivable that a path would be created without the corresponding
 
444
            contents insertion command)
403
445
        """
404
446
        if trans_id in self._new_contents:
405
447
            return self._new_contents[trans_id]
406
448
        elif trans_id in self._removed_contents:
407
 
            raise NoSuchFile(None)
 
449
            return None
408
450
        else:
409
451
            return self.tree_kind(trans_id)
410
452
 
441
483
        file_id = self.tree_file_id(trans_id)
442
484
        if file_id is not None:
443
485
            return file_id
444
 
        for key, value in self._non_present_ids.iteritems():
 
486
        for key, value in viewitems(self._non_present_ids):
445
487
            if value == trans_id:
446
488
                return key
447
489
 
471
513
        Only new paths and parents of tree files with assigned ids are used.
472
514
        """
473
515
        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())
 
516
        items = list(viewitems(self._new_parent))
 
517
        items.extend((t, self.final_parent(t))
 
518
            for t in list(self._tree_id_paths))
477
519
        for trans_id, parent_id in items:
478
520
            if parent_id not in by_parent:
479
521
                by_parent[parent_id] = set()
517
559
        Active parents are those which gain children, and those which are
518
560
        removed.  This is a necessary first step in detecting conflicts.
519
561
        """
520
 
        parents = self.by_parent().keys()
 
562
        parents = list(self.by_parent())
521
563
        parents.extend([t for t in self._removed_contents if
522
564
                        self.tree_kind(t) == 'directory'])
523
565
        for trans_id in self._removed_id:
524
566
            file_id = self.tree_file_id(trans_id)
525
567
            if file_id is not None:
526
 
                if self._tree.inventory[file_id].kind == 'directory':
 
568
                if self._tree.stored_kind(file_id) == 'directory':
527
569
                    parents.append(trans_id)
528
570
            elif self.tree_kind(trans_id) == 'directory':
529
571
                parents.append(trans_id)
532
574
            # ensure that all children are registered with the transaction
533
575
            list(self.iter_tree_children(parent_id))
534
576
 
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:
 
577
    def _has_named_child(self, name, parent_id, known_children):
 
578
        """Does a parent already have a name child.
 
579
 
 
580
        :param name: The searched for name.
 
581
 
 
582
        :param parent_id: The parent for which the check is made.
 
583
 
 
584
        :param known_children: The already known children. This should have
 
585
            been recently obtained from `self.by_parent.get(parent_id)`
 
586
            (or will be if None is passed).
 
587
        """
 
588
        if known_children is None:
 
589
            known_children = self.by_parent().get(parent_id, [])
 
590
        for child in known_children:
541
591
            if self.final_name(child) == name:
542
592
                return True
543
 
        try:
544
 
            path = self._tree_id_paths[parent_id]
545
 
        except KeyError:
 
593
        parent_path = self._tree_id_paths.get(parent_id, None)
 
594
        if parent_path is None:
 
595
            # No parent... no children
546
596
            return False
547
 
        childpath = joinpath(path, name)
548
 
        child_id = self._tree_path_ids.get(childpath)
 
597
        child_path = joinpath(parent_path, name)
 
598
        child_id = self._tree_path_ids.get(child_path, None)
549
599
        if child_id is None:
550
 
            return lexists(self._tree.abspath(childpath))
 
600
            # Not known by the tree transform yet, check the filesystem
 
601
            return osutils.lexists(self._tree.abspath(child_path))
551
602
        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
 
603
            raise AssertionError('child_id is missing: %s, %s, %s'
 
604
                                 % (name, parent_id, child_id))
 
605
 
 
606
    def _available_backup_name(self, name, target_id):
 
607
        """Find an available backup name.
 
608
 
 
609
        :param name: The basename of the file.
 
610
 
 
611
        :param target_id: The directory trans_id where the backup should 
 
612
            be placed.
 
613
        """
 
614
        known_children = self.by_parent().get(target_id, [])
 
615
        return osutils.available_backup_name(
 
616
            name,
 
617
            lambda base: self._has_named_child(
 
618
                base, target_id, known_children))
559
619
 
560
620
    def _parent_loops(self):
561
621
        """No entry should be its own ancestor"""
563
623
        for trans_id in self._new_parent:
564
624
            seen = set()
565
625
            parent_id = trans_id
566
 
            while parent_id is not ROOT_PARENT:
 
626
            while parent_id != ROOT_PARENT:
567
627
                seen.add(parent_id)
568
628
                try:
569
629
                    parent_id = self.final_parent(parent_id)
578
638
    def _unversioned_parents(self, by_parent):
579
639
        """If parent directories are versioned, children must be versioned."""
580
640
        conflicts = []
581
 
        for parent_id, children in by_parent.iteritems():
582
 
            if parent_id is ROOT_PARENT:
 
641
        for parent_id, children in viewitems(by_parent):
 
642
            if parent_id == ROOT_PARENT:
583
643
                continue
584
644
            if self.final_file_id(parent_id) is not None:
585
645
                continue
595
655
        However, existing entries with no contents are okay.
596
656
        """
597
657
        conflicts = []
598
 
        for trans_id in self._new_id.iterkeys():
599
 
            try:
600
 
                kind = self.final_kind(trans_id)
601
 
            except NoSuchFile:
 
658
        for trans_id in self._new_id:
 
659
            kind = self.final_kind(trans_id)
 
660
            if kind is None:
602
661
                conflicts.append(('versioning no contents', trans_id))
603
662
                continue
604
 
            if not InventoryEntry.versionable_kind(kind):
 
663
            if not inventory.InventoryEntry.versionable_kind(kind):
605
664
                conflicts.append(('versioning bad kind', trans_id, kind))
606
665
        return conflicts
607
666
 
618
677
            if self.final_file_id(trans_id) is None:
619
678
                conflicts.append(('unversioned executability', trans_id))
620
679
            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:
 
680
                if self.final_kind(trans_id) != "file":
626
681
                    conflicts.append(('non-file executability', trans_id))
627
682
        return conflicts
628
683
 
630
685
        """Check for overwrites (not permitted on Win32)"""
631
686
        conflicts = []
632
687
        for trans_id in self._new_contents:
633
 
            try:
634
 
                self.tree_kind(trans_id)
635
 
            except NoSuchFile:
 
688
            if self.tree_kind(trans_id) is None:
636
689
                continue
637
690
            if trans_id not in self._removed_contents:
638
691
                conflicts.append(('overwrite', trans_id,
644
697
        conflicts = []
645
698
        if (self._new_name, self._new_parent) == ({}, {}):
646
699
            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]
 
700
        for children in viewvalues(by_parent):
 
701
            name_ids = []
 
702
            for child_tid in children:
 
703
                name = self.final_name(child_tid)
 
704
                if name is not None:
 
705
                    # Keep children only if they still exist in the end
 
706
                    if not self._case_sensitive_target:
 
707
                        name = name.lower()
 
708
                    name_ids.append((name, child_tid))
651
709
            name_ids.sort()
652
710
            last_name = None
653
711
            last_trans_id = None
654
712
            for name, trans_id in name_ids:
655
 
                try:
656
 
                    kind = self.final_kind(trans_id)
657
 
                except NoSuchFile:
658
 
                    kind = None
 
713
                kind = self.final_kind(trans_id)
659
714
                file_id = self.final_file_id(trans_id)
660
715
                if kind is None and file_id is None:
661
716
                    continue
673
728
                                self._removed_id))
674
729
        all_ids = self._tree.all_file_ids()
675
730
        active_tree_ids = all_ids.difference(removed_tree_ids)
676
 
        for trans_id, file_id in self._new_id.iteritems():
 
731
        for trans_id, file_id in viewitems(self._new_id):
677
732
            if file_id in active_tree_ids:
678
733
                old_trans_id = self.trans_id_tree_file_id(file_id)
679
734
                conflicts.append(('duplicate id', old_trans_id, trans_id))
680
735
        return conflicts
681
736
 
682
737
    def _parent_type_conflicts(self, by_parent):
683
 
        """parents must have directory 'contents'."""
 
738
        """Children must have a directory parent"""
684
739
        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
 
740
        for parent_id, children in viewitems(by_parent):
 
741
            if parent_id == ROOT_PARENT:
 
742
                continue
 
743
            no_children = True
 
744
            for child_id in children:
 
745
                if self.final_kind(child_id) is not None:
 
746
                    no_children = False
 
747
                    break
 
748
            if no_children:
 
749
                continue
 
750
            # There is at least a child, so we need an existing directory to
 
751
            # contain it.
 
752
            kind = self.final_kind(parent_id)
699
753
            if kind is None:
 
754
                # The directory will be deleted
700
755
                conflicts.append(('missing parent', parent_id))
701
756
            elif kind != "directory":
 
757
                # Meh, we need a *directory* to put something in it
702
758
                conflicts.append(('non-directory parent', parent_id))
703
759
        return conflicts
704
760
 
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
761
    def _set_executability(self, path, trans_id):
716
762
        """Set the executability of versioned files """
717
 
        if supports_executable():
 
763
        if self._tree._supports_executable():
718
764
            new_executability = self._new_executability[trans_id]
719
765
            abspath = self._tree.abspath(path)
720
766
            current_mode = os.stat(abspath).st_mode
721
767
            if new_executability:
722
768
                umask = os.umask(0)
723
769
                os.umask(umask)
724
 
                to_mode = current_mode | (0100 & ~umask)
 
770
                to_mode = current_mode | (0o100 & ~umask)
725
771
                # 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
 
772
                if current_mode & 0o004:
 
773
                    to_mode |= 0o001 & ~umask
 
774
                if current_mode & 0o040:
 
775
                    to_mode |= 0o010 & ~umask
730
776
            else:
731
 
                to_mode = current_mode & ~0111
732
 
            os.chmod(abspath, to_mode)
 
777
                to_mode = current_mode & ~0o111
 
778
            osutils.chmod_if_possible(abspath, to_mode)
733
779
 
734
780
    def _new_entry(self, name, parent_id, file_id):
735
781
        """Helper function to create a new filesystem entry."""
739
785
        return trans_id
740
786
 
741
787
    def new_file(self, name, parent_id, contents, file_id=None,
742
 
                 executable=None):
 
788
                 executable=None, sha1=None):
743
789
        """Convenience method to create files.
744
790
 
745
791
        name is the name of the file to create.
752
798
        trans_id = self._new_entry(name, parent_id, file_id)
753
799
        # TODO: rather than scheduling a set_executable call,
754
800
        # have create_file create the file with the right mode.
755
 
        self.create_file(contents, trans_id)
 
801
        self.create_file(contents, trans_id, sha1=sha1)
756
802
        if executable is not None:
757
803
            self.set_executability(executable, trans_id)
758
804
        return trans_id
781
827
        self.create_symlink(target, trans_id)
782
828
        return trans_id
783
829
 
 
830
    def new_orphan(self, trans_id, parent_id):
 
831
        """Schedule an item to be orphaned.
 
832
 
 
833
        When a directory is about to be removed, its children, if they are not
 
834
        versioned are moved out of the way: they don't have a parent anymore.
 
835
 
 
836
        :param trans_id: The trans_id of the existing item.
 
837
        :param parent_id: The parent trans_id of the item.
 
838
        """
 
839
        raise NotImplementedError(self.new_orphan)
 
840
 
 
841
    def _get_potential_orphans(self, dir_id):
 
842
        """Find the potential orphans in a directory.
 
843
 
 
844
        A directory can't be safely deleted if there are versioned files in it.
 
845
        If all the contained files are unversioned then they can be orphaned.
 
846
 
 
847
        The 'None' return value means that the directory contains at least one
 
848
        versioned file and should not be deleted.
 
849
 
 
850
        :param dir_id: The directory trans id.
 
851
 
 
852
        :return: A list of the orphan trans ids or None if at least one
 
853
             versioned file is present.
 
854
        """
 
855
        orphans = []
 
856
        # Find the potential orphans, stop if one item should be kept
 
857
        for child_tid in self.by_parent()[dir_id]:
 
858
            if child_tid in self._removed_contents:
 
859
                # The child is removed as part of the transform. Since it was
 
860
                # versioned before, it's not an orphan
 
861
                continue
 
862
            elif self.final_file_id(child_tid) is None:
 
863
                # The child is not versioned
 
864
                orphans.append(child_tid)
 
865
            else:
 
866
                # We have a versioned file here, searching for orphans is
 
867
                # meaningless.
 
868
                orphans = None
 
869
                break
 
870
        return orphans
 
871
 
784
872
    def _affected_ids(self):
785
873
        """Return the set of transform ids affected by the transform"""
786
874
        trans_ids = set(self._removed_id)
787
 
        trans_ids.update(self._new_id.keys())
 
875
        trans_ids.update(self._new_id)
788
876
        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())
 
877
        trans_ids.update(self._new_contents)
 
878
        trans_ids.update(self._new_executability)
 
879
        trans_ids.update(self._new_name)
 
880
        trans_ids.update(self._new_parent)
793
881
        return trans_ids
794
882
 
795
883
    def _get_file_id_maps(self):
845
933
        Return a (name, parent, kind, executable) tuple
846
934
        """
847
935
        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
 
936
        to_kind = self.final_kind(to_trans_id)
852
937
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
853
938
        if to_trans_id in self._new_executability:
854
939
            to_executable = self._new_executability[to_trans_id]
872
957
        from_trans_ids, to_trans_ids = self._get_file_id_maps()
873
958
        results = []
874
959
        # Now iterate through all active file_ids
875
 
        for file_id in set(from_trans_ids.keys() + to_trans_ids.keys()):
 
960
        for file_id in set(from_trans_ids).union(to_trans_ids):
876
961
            modified = False
877
962
            from_trans_id = from_trans_ids.get(file_id)
878
963
            # find file ids, and determine versioning state
1015
1100
        :param serializer: A Serialiser like pack.ContainerSerializer.
1016
1101
        """
1017
1102
        new_name = dict((k, v.encode('utf-8')) for k, v in
1018
 
                        self._new_name.items())
 
1103
                        viewitems(self._new_name))
1019
1104
        new_executability = dict((k, int(v)) for k, v in
1020
 
                                 self._new_executability.items())
 
1105
                                 viewitems(self._new_executability))
1021
1106
        tree_path_ids = dict((k.encode('utf-8'), v)
1022
 
                             for k, v in self._tree_path_ids.items())
 
1107
                             for k, v in viewitems(self._tree_path_ids))
1023
1108
        attribs = {
1024
1109
            '_id_number': self._id_number,
1025
1110
            '_new_name': new_name,
1033
1118
            }
1034
1119
        yield serializer.bytes_record(bencode.bencode(attribs),
1035
1120
                                      (('attribs',),))
1036
 
        for trans_id, kind in self._new_contents.items():
 
1121
        for trans_id, kind in viewitems(self._new_contents):
1037
1122
            if kind == 'file':
1038
1123
                lines = osutils.chunks_to_lines(
1039
1124
                    self._read_file_chunks(trans_id))
1052
1137
        :param records: An iterable of (names, content) tuples, as per
1053
1138
            pack.ContainerPushParser.
1054
1139
        """
1055
 
        names, content = records.next()
 
1140
        names, content = next(records)
1056
1141
        attribs = bencode.bdecode(content)
1057
1142
        self._id_number = attribs['_id_number']
1058
1143
        self._new_name = dict((k, v.decode('utf-8'))
1059
 
                            for k, v in attribs['_new_name'].items())
 
1144
                              for k, v in viewitems(attribs['_new_name']))
1060
1145
        self._new_parent = attribs['_new_parent']
1061
 
        self._new_executability = dict((k, bool(v)) for k, v in
1062
 
            attribs['_new_executability'].items())
 
1146
        self._new_executability = dict((k, bool(v))
 
1147
            for k, v in viewitems(attribs['_new_executability']))
1063
1148
        self._new_id = attribs['_new_id']
1064
 
        self._r_new_id = dict((v, k) for k, v in self._new_id.items())
 
1149
        self._r_new_id = dict((v, k) for k, v in viewitems(self._new_id))
1065
1150
        self._tree_path_ids = {}
1066
1151
        self._tree_id_paths = {}
1067
 
        for bytepath, trans_id in attribs['_tree_path_ids'].items():
 
1152
        for bytepath, trans_id in viewitems(attribs['_tree_path_ids']):
1068
1153
            path = bytepath.decode('utf-8')
1069
1154
            self._tree_path_ids[path] = trans_id
1070
1155
            self._tree_id_paths[trans_id] = path
1101
1186
        self._deletiondir = None
1102
1187
        # A mapping of transform ids to their limbo filename
1103
1188
        self._limbo_files = {}
 
1189
        self._possibly_stale_limbo_files = set()
1104
1190
        # A mapping of transform ids to a set of the transform ids of children
1105
1191
        # that their limbo directory has
1106
1192
        self._limbo_children = {}
1119
1205
        if self._tree is None:
1120
1206
            return
1121
1207
        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)
 
1208
            limbo_paths = list(viewvalues(self._limbo_files))
 
1209
            limbo_paths.extend(self._possibly_stale_limbo_files)
 
1210
            limbo_paths.sort(reverse=True)
 
1211
            for path in limbo_paths:
 
1212
                try:
 
1213
                    delete_any(path)
 
1214
                except OSError as e:
 
1215
                    if e.errno != errno.ENOENT:
 
1216
                        raise
 
1217
                    # XXX: warn? perhaps we just got interrupted at an
 
1218
                    # inconvenient moment, but perhaps files are disappearing
 
1219
                    # from under us?
1127
1220
            try:
1128
1221
                delete_any(self._limbodir)
1129
1222
            except OSError:
1137
1230
        finally:
1138
1231
            TreeTransformBase.finalize(self)
1139
1232
 
 
1233
    def _limbo_supports_executable(self):
 
1234
        """Check if the limbo path supports the executable bit."""
 
1235
        # FIXME: Check actual file system capabilities of limbodir
 
1236
        return osutils.supports_executable()
 
1237
 
1140
1238
    def _limbo_name(self, trans_id):
1141
1239
        """Generate the limbo name of a file"""
1142
1240
        limbo_name = self._limbo_files.get(trans_id)
1178
1276
        entries from _limbo_files, because they are now stale.
1179
1277
        """
1180
1278
        for trans_id in trans_ids:
1181
 
            old_path = self._limbo_files.pop(trans_id)
 
1279
            old_path = self._limbo_files[trans_id]
 
1280
            self._possibly_stale_limbo_files.add(old_path)
 
1281
            del self._limbo_files[trans_id]
1182
1282
            if trans_id not in self._new_contents:
1183
1283
                continue
1184
1284
            new_path = self._limbo_name(trans_id)
1185
 
            osutils.rename(old_path, new_path)
 
1285
            os.rename(old_path, new_path)
 
1286
            self._possibly_stale_limbo_files.remove(old_path)
1186
1287
            for descendant in self._limbo_descendants(trans_id):
1187
1288
                desc_path = self._limbo_files[descendant]
1188
1289
                desc_path = new_path + desc_path[len(old_path):]
1195
1296
            descendants.update(self._limbo_descendants(descendant))
1196
1297
        return descendants
1197
1298
 
1198
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1299
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1199
1300
        """Schedule creation of a new file.
1200
1301
 
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.
 
1302
        :seealso: new_file.
 
1303
 
 
1304
        :param contents: an iterator of strings, all of which will be written
 
1305
            to the target destination.
 
1306
        :param trans_id: TreeTransform handle
 
1307
        :param mode_id: If not None, force the mode of the target file to match
 
1308
            the mode of the object referenced by mode_id.
 
1309
            Otherwise, we will try to preserve mode bits of an existing file.
 
1310
        :param sha1: If the sha1 of this content is already known, pass it in.
 
1311
            We can use it to prevent future sha1 computations.
1208
1312
        """
1209
1313
        name = self._limbo_name(trans_id)
1210
1314
        f = open(name, 'wb')
1211
1315
        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
 
 
 
1316
            unique_add(self._new_contents, trans_id, 'file')
1221
1317
            f.writelines(contents)
1222
1318
        finally:
1223
1319
            f.close()
1224
1320
        self._set_mtime(name)
1225
1321
        self._set_mode(trans_id, mode_id, S_ISREG)
 
1322
        # It is unfortunate we have to use lstat instead of fstat, but we just
 
1323
        # used utime and chmod on the file, so we need the accurate final
 
1324
        # details.
 
1325
        if sha1 is not None:
 
1326
            self._observed_sha1s[trans_id] = (sha1, osutils.lstat(name))
1226
1327
 
1227
1328
    def _read_file_chunks(self, trans_id):
1228
1329
        cur_file = open(self._limbo_name(trans_id), 'rb')
1248
1349
        name = self._limbo_name(trans_id)
1249
1350
        try:
1250
1351
            os.link(path, name)
1251
 
        except OSError, e:
 
1352
        except OSError as e:
1252
1353
            if e.errno != errno.EPERM:
1253
1354
                raise
1254
1355
            raise errors.HardLinkNotSupported(path)
1287
1388
    def cancel_creation(self, trans_id):
1288
1389
        """Cancel the creation of new file contents."""
1289
1390
        del self._new_contents[trans_id]
 
1391
        if trans_id in self._observed_sha1s:
 
1392
            del self._observed_sha1s[trans_id]
1290
1393
        children = self._limbo_children.get(trans_id)
1291
1394
        # if this is a limbo directory with children, move them before removing
1292
1395
        # the directory
1296
1399
            del self._limbo_children_names[trans_id]
1297
1400
        delete_any(self._limbo_name(trans_id))
1298
1401
 
 
1402
    def new_orphan(self, trans_id, parent_id):
 
1403
        conf = self._tree.get_config_stack()
 
1404
        handle_orphan = conf.get('bzr.transform.orphan_policy')
 
1405
        handle_orphan(self, trans_id, parent_id)
 
1406
 
 
1407
 
 
1408
class OrphaningError(errors.BzrError):
 
1409
 
 
1410
    # Only bugs could lead to such exception being seen by the user
 
1411
    internal_error = True
 
1412
    _fmt = "Error while orphaning %s in %s directory"
 
1413
 
 
1414
    def __init__(self, orphan, parent):
 
1415
        errors.BzrError.__init__(self)
 
1416
        self.orphan = orphan
 
1417
        self.parent = parent
 
1418
 
 
1419
 
 
1420
class OrphaningForbidden(OrphaningError):
 
1421
 
 
1422
    _fmt = "Policy: %s doesn't allow creating orphans."
 
1423
 
 
1424
    def __init__(self, policy):
 
1425
        errors.BzrError.__init__(self)
 
1426
        self.policy = policy
 
1427
 
 
1428
 
 
1429
def move_orphan(tt, orphan_id, parent_id):
 
1430
    """See TreeTransformBase.new_orphan.
 
1431
 
 
1432
    This creates a new orphan in the `bzr-orphans` dir at the root of the
 
1433
    `TreeTransform`.
 
1434
 
 
1435
    :param tt: The TreeTransform orphaning `trans_id`.
 
1436
 
 
1437
    :param orphan_id: The trans id that should be orphaned.
 
1438
 
 
1439
    :param parent_id: The orphan parent trans id.
 
1440
    """
 
1441
    # Add the orphan dir if it doesn't exist
 
1442
    orphan_dir_basename = 'bzr-orphans'
 
1443
    od_id = tt.trans_id_tree_path(orphan_dir_basename)
 
1444
    if tt.final_kind(od_id) is None:
 
1445
        tt.create_directory(od_id)
 
1446
    parent_path = tt._tree_id_paths[parent_id]
 
1447
    # Find a name that doesn't exist yet in the orphan dir
 
1448
    actual_name = tt.final_name(orphan_id)
 
1449
    new_name = tt._available_backup_name(actual_name, od_id)
 
1450
    tt.adjust_path(new_name, od_id, orphan_id)
 
1451
    trace.warning('%s has been orphaned in %s'
 
1452
                  % (joinpath(parent_path, actual_name), orphan_dir_basename))
 
1453
 
 
1454
 
 
1455
def refuse_orphan(tt, orphan_id, parent_id):
 
1456
    """See TreeTransformBase.new_orphan.
 
1457
 
 
1458
    This refuses to create orphan, letting the caller handle the conflict.
 
1459
    """
 
1460
    raise OrphaningForbidden('never')
 
1461
 
 
1462
 
 
1463
orphaning_registry = registry.Registry()
 
1464
orphaning_registry.register(
 
1465
    'conflict', refuse_orphan,
 
1466
    'Leave orphans in place and create a conflict on the directory.')
 
1467
orphaning_registry.register(
 
1468
    'move', move_orphan,
 
1469
    'Move orphans into the bzr-orphans directory.')
 
1470
orphaning_registry._set_default_key('conflict')
 
1471
 
 
1472
 
 
1473
opt_transform_orphan = _mod_config.RegistryOption(
 
1474
    'bzr.transform.orphan_policy', orphaning_registry,
 
1475
    help='Policy for orphaned files during transform operations.',
 
1476
    invalid='warning')
 
1477
 
1299
1478
 
1300
1479
class TreeTransform(DiskTreeTransform):
1301
1480
    """Represent a tree transformation.
1373
1552
        try:
1374
1553
            limbodir = urlutils.local_path_from_url(
1375
1554
                tree._transport.abspath('limbo'))
1376
 
            try:
1377
 
                os.mkdir(limbodir)
1378
 
            except OSError, e:
1379
 
                if e.errno == errno.EEXIST:
1380
 
                    raise ExistingLimbo(limbodir)
 
1555
            osutils.ensure_empty_directory_exists(
 
1556
                limbodir,
 
1557
                errors.ExistingLimbo)
1381
1558
            deletiondir = urlutils.local_path_from_url(
1382
1559
                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)
 
1560
            osutils.ensure_empty_directory_exists(
 
1561
                deletiondir,
 
1562
                errors.ExistingPendingDeletion)
1388
1563
        except:
1389
1564
            tree.unlock()
1390
1565
            raise
1419
1594
    def tree_kind(self, trans_id):
1420
1595
        """Determine the file kind in the working tree.
1421
1596
 
1422
 
        Raises NoSuchFile if the file does not exist
 
1597
        :returns: The file kind or None if the file does not exist
1423
1598
        """
1424
1599
        path = self._tree_id_paths.get(trans_id)
1425
1600
        if path is None:
1426
 
            raise NoSuchFile(None)
 
1601
            return None
1427
1602
        try:
1428
1603
            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)
 
1604
        except errors.NoSuchFile:
 
1605
            return None
1434
1606
 
1435
1607
    def _set_mode(self, trans_id, mode_id, typefunc):
1436
1608
        """Set the mode of new file contents.
1446
1618
            return
1447
1619
        try:
1448
1620
            mode = os.stat(self._tree.abspath(old_path)).st_mode
1449
 
        except OSError, e:
 
1621
        except OSError as e:
1450
1622
            if e.errno in (errno.ENOENT, errno.ENOTDIR):
1451
1623
                # Either old_path doesn't exist, or the parent of the
1452
1624
                # target is not a directory (but will be one eventually)
1456
1628
            else:
1457
1629
                raise
1458
1630
        if typefunc(mode):
1459
 
            os.chmod(self._limbo_name(trans_id), mode)
 
1631
            osutils.chmod_if_possible(self._limbo_name(trans_id), mode)
1460
1632
 
1461
1633
    def iter_tree_children(self, parent_id):
1462
1634
        """Iterate through the entry's tree children, if any"""
1466
1638
            return
1467
1639
        try:
1468
1640
            children = os.listdir(self._tree.abspath(path))
1469
 
        except OSError, e:
 
1641
        except OSError as e:
1470
1642
            if not (osutils._is_error_enotdir(e)
1471
1643
                    or e.errno in (errno.ENOENT, errno.ESRCH)):
1472
1644
                raise
1508
1680
                        in (trans_id, None)):
1509
1681
                        use_direct_path = True
1510
1682
                else:
1511
 
                    for l_filename, l_trans_id in\
1512
 
                        self._limbo_children_names[parent].iteritems():
 
1683
                    for l_filename, l_trans_id in viewitems(
 
1684
                            self._limbo_children_names[parent]):
1513
1685
                        if l_trans_id == trans_id:
1514
1686
                            continue
1515
1687
                        if l_filename.lower() == filename.lower():
1540
1712
            calculating one.
1541
1713
        :param _mover: Supply an alternate FileMover, for testing
1542
1714
        """
 
1715
        for hook in MutableTree.hooks['pre_transform']:
 
1716
            hook(self._tree, self)
1543
1717
        if not no_conflicts:
1544
1718
            self._check_malformed()
1545
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1719
        child_pb = ui.ui_factory.nested_progress_bar()
1546
1720
        try:
1547
1721
            if precomputed_delta is None:
1548
 
                child_pb.update('Apply phase', 0, 2)
 
1722
                child_pb.update(gettext('Apply phase'), 0, 2)
1549
1723
                inventory_delta = self._generate_inventory_delta()
1550
1724
                offset = 1
1551
1725
            else:
1556
1730
            else:
1557
1731
                mover = _mover
1558
1732
            try:
1559
 
                child_pb.update('Apply phase', 0 + offset, 2 + offset)
 
1733
                child_pb.update(gettext('Apply phase'), 0 + offset, 2 + offset)
1560
1734
                self._apply_removals(mover)
1561
 
                child_pb.update('Apply phase', 1 + offset, 2 + offset)
 
1735
                child_pb.update(gettext('Apply phase'), 1 + offset, 2 + offset)
1562
1736
                modified_paths = self._apply_insertions(mover)
1563
1737
            except:
1564
1738
                mover.rollback()
1567
1741
                mover.apply_deletions()
1568
1742
        finally:
1569
1743
            child_pb.finished()
 
1744
        if self.final_file_id(self.root) is None:
 
1745
            inventory_delta = [e for e in inventory_delta if e[0] != '']
1570
1746
        self._tree.apply_inventory_delta(inventory_delta)
 
1747
        self._apply_observed_sha1s()
1571
1748
        self._done = True
1572
1749
        self.finalize()
1573
1750
        return _TransformResults(modified_paths, self.rename_count)
1575
1752
    def _generate_inventory_delta(self):
1576
1753
        """Generate an inventory delta for the current transform."""
1577
1754
        inventory_delta = []
1578
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1755
        child_pb = ui.ui_factory.nested_progress_bar()
1579
1756
        new_paths = self._inventory_altered()
1580
1757
        total_entries = len(new_paths) + len(self._removed_id)
1581
1758
        try:
1582
1759
            for num, trans_id in enumerate(self._removed_id):
1583
1760
                if (num % 10) == 0:
1584
 
                    child_pb.update('removing file', num, total_entries)
 
1761
                    child_pb.update(gettext('removing file'), num, total_entries)
1585
1762
                if trans_id == self._new_root:
1586
1763
                    file_id = self._tree.get_root_id()
1587
1764
                else:
1594
1771
            new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1595
1772
                                     new_paths)
1596
1773
            entries = self._tree.iter_entries_by_dir(
1597
 
                new_path_file_ids.values())
 
1774
                viewvalues(new_path_file_ids))
1598
1775
            old_paths = dict((e.file_id, p) for p, e in entries)
1599
1776
            final_kinds = {}
1600
1777
            for num, (path, trans_id) in enumerate(new_paths):
1601
1778
                if (num % 10) == 0:
1602
 
                    child_pb.update('adding file',
 
1779
                    child_pb.update(gettext('adding file'),
1603
1780
                                    num + len(self._removed_id), total_entries)
1604
1781
                file_id = new_path_file_ids[trans_id]
1605
1782
                if file_id is None:
1606
1783
                    continue
1607
1784
                needs_entry = False
1608
 
                try:
1609
 
                    kind = self.final_kind(trans_id)
1610
 
                except NoSuchFile:
 
1785
                kind = self.final_kind(trans_id)
 
1786
                if kind is None:
1611
1787
                    kind = self._tree.stored_kind(file_id)
1612
1788
                parent_trans_id = self.final_parent(trans_id)
1613
1789
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1642
1818
 
1643
1819
        If inventory_delta is None, no inventory delta generation is performed.
1644
1820
        """
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()
 
1821
        tree_paths = sorted(viewitems(self._tree_path_ids), reverse=True)
 
1822
        child_pb = ui.ui_factory.nested_progress_bar()
1648
1823
        try:
1649
 
            for num, data in enumerate(tree_paths):
1650
 
                path, trans_id = data
1651
 
                child_pb.update('removing file', num, len(tree_paths))
 
1824
            for num, (path, trans_id) in enumerate(tree_paths):
 
1825
                # do not attempt to move root into a subdirectory of itself.
 
1826
                if path == '':
 
1827
                    continue
 
1828
                child_pb.update(gettext('removing file'), num, len(tree_paths))
1652
1829
                full_path = self._tree.abspath(path)
1653
1830
                if trans_id in self._removed_contents:
1654
1831
                    delete_path = os.path.join(self._deletiondir, trans_id)
1657
1834
                      or trans_id in self._new_parent):
1658
1835
                    try:
1659
1836
                        mover.rename(full_path, self._limbo_name(trans_id))
1660
 
                    except OSError, e:
 
1837
                    except errors.TransformRenameFailed as e:
1661
1838
                        if e.errno != errno.ENOENT:
1662
1839
                            raise
1663
1840
                    else:
1679
1856
        modified_paths = []
1680
1857
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1681
1858
                                 new_paths)
1682
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1859
        child_pb = ui.ui_factory.nested_progress_bar()
1683
1860
        try:
1684
1861
            for num, (path, trans_id) in enumerate(new_paths):
1685
1862
                if (num % 10) == 0:
1686
 
                    child_pb.update('adding file', num, len(new_paths))
 
1863
                    child_pb.update(gettext('adding file'), num, len(new_paths))
1687
1864
                full_path = self._tree.abspath(path)
1688
1865
                if trans_id in self._needs_rename:
1689
1866
                    try:
1690
1867
                        mover.rename(self._limbo_name(trans_id), full_path)
1691
 
                    except OSError, e:
 
1868
                    except errors.TransformRenameFailed as e:
1692
1869
                        # We may be renaming a dangling inventory id
1693
1870
                        if e.errno != errno.ENOENT:
1694
1871
                            raise
1695
1872
                    else:
1696
1873
                        self.rename_count += 1
 
1874
                    # TODO: if trans_id in self._observed_sha1s, we should
 
1875
                    #       re-stat the final target, since ctime will be
 
1876
                    #       updated by the change.
1697
1877
                if (trans_id in self._new_contents or
1698
1878
                    self.path_changed(trans_id)):
1699
1879
                    if trans_id in self._new_contents:
1700
1880
                        modified_paths.append(full_path)
1701
1881
                if trans_id in self._new_executability:
1702
1882
                    self._set_executability(path, trans_id)
 
1883
                if trans_id in self._observed_sha1s:
 
1884
                    o_sha1, o_st_val = self._observed_sha1s[trans_id]
 
1885
                    st = osutils.lstat(full_path)
 
1886
                    self._observed_sha1s[trans_id] = (o_sha1, st)
1703
1887
        finally:
1704
1888
            child_pb.finished()
 
1889
        for path, trans_id in new_paths:
 
1890
            # new_paths includes stuff like workingtree conflicts. Only the
 
1891
            # stuff in new_contents actually comes from limbo.
 
1892
            if trans_id in self._limbo_files:
 
1893
                del self._limbo_files[trans_id]
1705
1894
        self._new_contents.clear()
1706
1895
        return modified_paths
1707
1896
 
 
1897
    def _apply_observed_sha1s(self):
 
1898
        """After we have finished renaming everything, update observed sha1s
 
1899
 
 
1900
        This has to be done after self._tree.apply_inventory_delta, otherwise
 
1901
        it doesn't know anything about the files we are updating. Also, we want
 
1902
        to do this as late as possible, so that most entries end up cached.
 
1903
        """
 
1904
        # TODO: this doesn't update the stat information for directories. So
 
1905
        #       the first 'bzr status' will still need to rewrite
 
1906
        #       .bzr/checkout/dirstate. However, we at least don't need to
 
1907
        #       re-read all of the files.
 
1908
        # TODO: If the operation took a while, we could do a time.sleep(3) here
 
1909
        #       to allow the clock to tick over and ensure we won't have any
 
1910
        #       problems. (we could observe start time, and finish time, and if
 
1911
        #       it is less than eg 10% overhead, add a sleep call.)
 
1912
        paths = FinalPaths(self)
 
1913
        for trans_id, observed in viewitems(self._observed_sha1s):
 
1914
            path = paths.get_path(trans_id)
 
1915
            # We could get the file_id, but dirstate prefers to use the path
 
1916
            # anyway, and it is 'cheaper' to determine.
 
1917
            # file_id = self._new_id[trans_id]
 
1918
            self._tree._observed_sha1(None, path, observed)
 
1919
 
1708
1920
 
1709
1921
class TransformPreview(DiskTreeTransform):
1710
1922
    """A TreeTransform for generating preview trees.
1725
1937
    def tree_kind(self, trans_id):
1726
1938
        path = self._tree_id_paths.get(trans_id)
1727
1939
        if path is None:
1728
 
            raise NoSuchFile(None)
1729
 
        file_id = self._tree.path2id(path)
1730
 
        return self._tree.kind(file_id)
 
1940
            return None
 
1941
        kind = self._tree.path_content_summary(path)[0]
 
1942
        if kind == 'missing':
 
1943
            kind = None
 
1944
        return kind
1731
1945
 
1732
1946
    def _set_mode(self, trans_id, mode_id, typefunc):
1733
1947
        """Set the mode of new file contents.
1753
1967
            childpath = joinpath(path, child)
1754
1968
            yield self.trans_id_tree_path(childpath)
1755
1969
 
1756
 
 
1757
 
class _PreviewTree(tree.Tree):
 
1970
    def new_orphan(self, trans_id, parent_id):
 
1971
        raise NotImplementedError(self.new_orphan)
 
1972
 
 
1973
 
 
1974
class _PreviewTree(tree.InventoryTree):
1758
1975
    """Partial implementation of Tree to support show_diff_trees"""
1759
1976
 
1760
1977
    def __init__(self, transform):
1789
2006
                yield self._get_repository().revision_tree(revision_id)
1790
2007
 
1791
2008
    def _get_file_revision(self, file_id, vf, tree_revision):
1792
 
        parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
 
2009
        parent_keys = [(file_id, t.get_file_revision(file_id)) for t in
1793
2010
                       self._iter_parent_trees()]
1794
2011
        vf.add_lines((file_id, tree_revision), parent_keys,
1795
 
                     self.get_file(file_id).readlines())
 
2012
                     self.get_file_lines(file_id))
1796
2013
        repo = self._get_repository()
1797
2014
        base_vf = repo.texts
1798
2015
        if base_vf not in vf.fallback_versionedfiles:
1799
2016
            vf.fallback_versionedfiles.append(base_vf)
1800
2017
        return tree_revision
1801
2018
 
1802
 
    def _stat_limbo_file(self, file_id):
1803
 
        trans_id = self._transform.trans_id_file_id(file_id)
 
2019
    def _stat_limbo_file(self, file_id=None, trans_id=None):
 
2020
        if trans_id is None:
 
2021
            trans_id = self._transform.trans_id_file_id(file_id)
1804
2022
        name = self._transform._limbo_name(trans_id)
1805
2023
        return os.lstat(name)
1806
2024
 
1831
2049
        pass
1832
2050
 
1833
2051
    @property
1834
 
    def inventory(self):
 
2052
    def root_inventory(self):
1835
2053
        """This Tree does not use inventory as its backing data."""
1836
 
        raise NotImplementedError(_PreviewTree.inventory)
 
2054
        raise NotImplementedError(_PreviewTree.root_inventory)
1837
2055
 
1838
2056
    def get_root_id(self):
1839
2057
        return self._transform.final_file_id(self._transform.root)
1842
2060
        tree_ids = set(self._transform._tree.all_file_ids())
1843
2061
        tree_ids.difference_update(self._transform.tree_file_id(t)
1844
2062
                                   for t in self._transform._removed_id)
1845
 
        tree_ids.update(self._transform._new_id.values())
 
2063
        tree_ids.update(viewvalues(self._transform._new_id))
1846
2064
        return tree_ids
1847
2065
 
1848
2066
    def __iter__(self):
1851
2069
    def _has_id(self, file_id, fallback_check):
1852
2070
        if file_id in self._transform._r_new_id:
1853
2071
            return True
1854
 
        elif file_id in set([self._transform.tree_file_id(trans_id) for
1855
 
            trans_id in self._transform._removed_id]):
 
2072
        elif file_id in {self._transform.tree_file_id(trans_id) for
 
2073
            trans_id in self._transform._removed_id}:
1856
2074
            return False
1857
2075
        else:
1858
2076
            return fallback_check(file_id)
1886
2104
        return cur_parent
1887
2105
 
1888
2106
    def path2id(self, path):
 
2107
        if isinstance(path, list):
 
2108
            if path == []:
 
2109
                path = [""]
 
2110
            path = osutils.pathjoin(*path)
1889
2111
        return self._transform.final_file_id(self._path2trans_id(path))
1890
2112
 
1891
2113
    def id2path(self, file_id):
1901
2123
            return children
1902
2124
        children = set(self._transform.iter_tree_children(trans_id))
1903
2125
        # children in the _new_parent set are provided by _by_parent.
1904
 
        children.difference_update(self._transform._new_parent.keys())
 
2126
        children.difference_update(self._transform._new_parent)
1905
2127
        children.update(self._by_parent.get(trans_id, []))
1906
2128
        self._all_children_cache[trans_id] = children
1907
2129
        return children
1929
2151
            if (specific_file_ids is not None
1930
2152
                and file_id not in specific_file_ids):
1931
2153
                continue
1932
 
            try:
1933
 
                kind = self._transform.final_kind(trans_id)
1934
 
            except NoSuchFile:
 
2154
            kind = self._transform.final_kind(trans_id)
 
2155
            if kind is None:
1935
2156
                kind = self._transform._tree.stored_kind(file_id)
1936
2157
            new_entry = inventory.make_entry(
1937
2158
                kind,
1953
2174
                ordered_ids.append((trans_id, parent_file_id))
1954
2175
        return ordered_ids
1955
2176
 
 
2177
    def iter_child_entries(self, file_id, path=None):
 
2178
        self.id2path(file_id)
 
2179
        trans_id = self._transform.trans_id_file_id(file_id)
 
2180
        todo = [(child_trans_id, trans_id) for child_trans_id in
 
2181
                self._all_children(trans_id)]
 
2182
        for entry, trans_id in self._make_inv_entries(todo):
 
2183
            yield entry
 
2184
 
1956
2185
    def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1957
2186
        # This may not be a maximally efficient implementation, but it is
1958
2187
        # reasonably straightforward.  An implementation that grafts the
2022
2251
 
2023
2252
    def get_file_size(self, file_id):
2024
2253
        """See Tree.get_file_size"""
 
2254
        trans_id = self._transform.trans_id_file_id(file_id)
 
2255
        kind = self._transform.final_kind(trans_id)
 
2256
        if kind != 'file':
 
2257
            return None
 
2258
        if trans_id in self._transform._new_contents:
 
2259
            return self._stat_limbo_file(trans_id=trans_id).st_size
2025
2260
        if self.kind(file_id) == 'file':
2026
2261
            return self._transform._tree.get_file_size(file_id)
2027
2262
        else:
2028
2263
            return None
2029
2264
 
 
2265
    def get_file_verifier(self, file_id, path=None, stat_value=None):
 
2266
        trans_id = self._transform.trans_id_file_id(file_id)
 
2267
        kind = self._transform._new_contents.get(trans_id)
 
2268
        if kind is None:
 
2269
            return self._transform._tree.get_file_verifier(file_id)
 
2270
        if kind == 'file':
 
2271
            fileobj = self.get_file(file_id)
 
2272
            try:
 
2273
                return ("SHA1", sha_file(fileobj))
 
2274
            finally:
 
2275
                fileobj.close()
 
2276
 
2030
2277
    def get_file_sha1(self, file_id, path=None, stat_value=None):
2031
2278
        trans_id = self._transform.trans_id_file_id(file_id)
2032
2279
        kind = self._transform._new_contents.get(trans_id)
2048
2295
        except KeyError:
2049
2296
            try:
2050
2297
                return self._transform._tree.is_executable(file_id, path)
2051
 
            except OSError, e:
 
2298
            except OSError as e:
2052
2299
                if e.errno == errno.ENOENT:
2053
2300
                    return False
2054
2301
                raise
2055
2302
            except errors.NoSuchId:
2056
2303
                return False
2057
2304
 
 
2305
    def has_filename(self, path):
 
2306
        trans_id = self._path2trans_id(path)
 
2307
        if trans_id in self._transform._new_contents:
 
2308
            return True
 
2309
        elif trans_id in self._transform._removed_contents:
 
2310
            return False
 
2311
        else:
 
2312
            return self._transform._tree.has_filename(path)
 
2313
 
2058
2314
    def path_content_summary(self, path):
2059
2315
        trans_id = self._path2trans_id(path)
2060
2316
        tt = self._transform
2073
2329
            if kind == 'file':
2074
2330
                statval = os.lstat(limbo_name)
2075
2331
                size = statval.st_size
2076
 
                if not supports_executable():
 
2332
                if not tt._limbo_supports_executable():
2077
2333
                    executable = False
2078
2334
                else:
2079
2335
                    executable = statval.st_mode & S_IEXEC
2148
2404
                                   self.get_file(file_id).readlines(),
2149
2405
                                   default_revision)
2150
2406
 
2151
 
    def get_symlink_target(self, file_id):
 
2407
    def get_symlink_target(self, file_id, path=None):
2152
2408
        """See Tree.get_symlink_target"""
2153
2409
        if not self._content_change(file_id):
2154
2410
            return self._transform._tree.get_symlink_target(file_id)
2169
2425
                path_from_root = self._final_paths.get_path(child_id)
2170
2426
                basename = self._transform.final_name(child_id)
2171
2427
                file_id = self._transform.final_file_id(child_id)
2172
 
                try:
2173
 
                    kind = self._transform.final_kind(child_id)
 
2428
                kind  = self._transform.final_kind(child_id)
 
2429
                if kind is not None:
2174
2430
                    versioned_kind = kind
2175
 
                except NoSuchFile:
 
2431
                else:
2176
2432
                    kind = 'unknown'
2177
2433
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2178
2434
                if versioned_kind == 'directory':
2291
2547
    for num, _unused in enumerate(wt.all_file_ids()):
2292
2548
        if num > 0:  # more than just a root
2293
2549
            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
2550
    file_trans_id = {}
2298
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2551
    top_pb = ui.ui_factory.nested_progress_bar()
2299
2552
    pp = ProgressPhase("Build phase", 2, top_pb)
2300
 
    if tree.inventory.root is not None:
 
2553
    if tree.get_root_id() is not None:
2301
2554
        # This is kind of a hack: we should be altering the root
2302
2555
        # as part of the regular tree shape diff logic.
2303
2556
        # The conditional test here is to avoid doing an
2314
2567
        pp.next_phase()
2315
2568
        file_trans_id[wt.get_root_id()] = \
2316
2569
            tt.trans_id_tree_file_id(wt.get_root_id())
2317
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2570
        pb = ui.ui_factory.nested_progress_bar()
2318
2571
        try:
2319
2572
            deferred_contents = []
2320
2573
            num = 0
2321
 
            total = len(tree.inventory)
 
2574
            total = len(tree.all_file_ids())
2322
2575
            if delta_from_tree:
2323
2576
                precomputed_delta = []
2324
2577
            else:
2325
2578
                precomputed_delta = None
 
2579
            # Check if tree inventory has content. If so, we populate
 
2580
            # existing_files with the directory content. If there are no
 
2581
            # entries we skip populating existing_files as its not used.
 
2582
            # This improves performance and unncessary work on large
 
2583
            # directory trees. (#501307)
 
2584
            if total > 0:
 
2585
                existing_files = set()
 
2586
                for dir, files in wt.walkdirs():
 
2587
                    existing_files.update(f[0] for f in files)
2326
2588
            for num, (tree_path, entry) in \
2327
 
                enumerate(tree.inventory.iter_entries_by_dir()):
2328
 
                pb.update("Building tree", num - len(deferred_contents), total)
 
2589
                enumerate(tree.iter_entries_by_dir()):
 
2590
                pb.update(gettext("Building tree"), num - len(deferred_contents), total)
2329
2591
                if entry.parent_id is None:
2330
2592
                    continue
2331
2593
                reparent = False
2337
2599
                    kind = file_kind(target_path)
2338
2600
                    if kind == "directory":
2339
2601
                        try:
2340
 
                            bzrdir.BzrDir.open(target_path)
 
2602
                            controldir.ControlDir.open(target_path)
2341
2603
                        except errors.NotBranchError:
2342
2604
                            pass
2343
2605
                        else:
2358
2620
                    executable = tree.is_executable(file_id, tree_path)
2359
2621
                    if executable:
2360
2622
                        tt.set_executability(executable, trans_id)
2361
 
                    trans_data = (trans_id, tree_path)
 
2623
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2362
2624
                    deferred_contents.append((file_id, trans_data))
2363
2625
                else:
2364
2626
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2380
2642
            precomputed_delta = None
2381
2643
        conflicts = cook_conflicts(raw_conflicts, tt)
2382
2644
        for conflict in conflicts:
2383
 
            warning(conflict)
 
2645
            trace.warning(unicode(conflict))
2384
2646
        try:
2385
2647
            wt.add_conflicts(conflicts)
2386
2648
        except errors.UnsupportedOperation:
2405
2667
                     in iter if not (c or e[0] != e[1])]
2406
2668
        if accelerator_tree.supports_content_filtering():
2407
2669
            unchanged = [(f, p) for (f, p) in unchanged
2408
 
                         if not accelerator_tree.iter_search_rules([p]).next()]
 
2670
                         if not next(accelerator_tree.iter_search_rules([p]))]
2409
2671
        unchanged = dict(unchanged)
2410
2672
        new_desired_files = []
2411
2673
        count = 0
2412
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2674
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2413
2675
            accelerator_path = unchanged.get(file_id)
2414
2676
            if accelerator_path is None:
2415
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2677
                new_desired_files.append((file_id,
 
2678
                    (trans_id, tree_path, text_sha1)))
2416
2679
                continue
2417
 
            pb.update('Adding file contents', count + offset, total)
 
2680
            pb.update(gettext('Adding file contents'), count + offset, total)
2418
2681
            if hardlink:
2419
2682
                tt.create_hardlink(accelerator_tree.abspath(accelerator_path),
2420
2683
                                   trans_id)
2425
2688
                    contents = filtered_output_bytes(contents, filters,
2426
2689
                        ContentFilterContext(tree_path, tree))
2427
2690
                try:
2428
 
                    tt.create_file(contents, trans_id)
 
2691
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2429
2692
                finally:
2430
2693
                    try:
2431
2694
                        contents.close()
2434
2697
                        pass
2435
2698
            count += 1
2436
2699
        offset += count
2437
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2700
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2438
2701
            tree.iter_files_bytes(new_desired_files)):
2439
2702
        if wt.supports_content_filtering():
2440
2703
            filters = wt._content_filter_stack(tree_path)
2441
2704
            contents = filtered_output_bytes(contents, filters,
2442
2705
                ContentFilterContext(tree_path, tree))
2443
 
        tt.create_file(contents, trans_id)
2444
 
        pb.update('Adding file contents', count + offset, total)
 
2706
        tt.create_file(contents, trans_id, sha1=text_sha1)
 
2707
        pb.update(gettext('Adding file contents'), count + offset, total)
2445
2708
 
2446
2709
 
2447
2710
def _reparent_children(tt, old_parent, new_parent):
2448
2711
    for child in tt.iter_tree_children(old_parent):
2449
2712
        tt.adjust_path(tt.final_name(child), new_parent, child)
2450
2713
 
 
2714
 
2451
2715
def _reparent_transform_children(tt, old_parent, new_parent):
2452
2716
    by_parent = tt.by_parent()
2453
2717
    for child in by_parent[old_parent]:
2454
2718
        tt.adjust_path(tt.final_name(child), new_parent, child)
2455
2719
    return by_parent[old_parent]
2456
2720
 
 
2721
 
2457
2722
def _content_match(tree, entry, file_id, kind, target_path):
2458
2723
    if entry.kind != kind:
2459
2724
        return False
2460
2725
    if entry.kind == "directory":
2461
2726
        return True
2462
2727
    if entry.kind == "file":
2463
 
        if tree.get_file(file_id).read() == file(target_path, 'rb').read():
2464
 
            return True
 
2728
        f = file(target_path, 'rb')
 
2729
        try:
 
2730
            if tree.get_file_text(file_id) == f.read():
 
2731
                return True
 
2732
        finally:
 
2733
            f.close()
2465
2734
    elif entry.kind == "symlink":
2466
2735
        if tree.get_symlink_target(file_id) == os.readlink(target_path):
2467
2736
            return True
2519
2788
        raise errors.BadFileKindError(name, kind)
2520
2789
 
2521
2790
 
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
2791
def create_from_tree(tt, trans_id, tree, file_id, bytes=None,
2539
2792
    filter_tree_path=None):
2540
2793
    """Create new file contents according to tree contents.
2571
2824
        tt.set_executability(entry.executable, trans_id)
2572
2825
 
2573
2826
 
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
2827
def revert(working_tree, target_tree, filenames, backups=False,
2618
2828
           pb=None, change_reporter=None):
2619
2829
    """Revert a working tree's contents to those of a target tree."""
2629
2839
                unversioned_filter=working_tree.is_ignored)
2630
2840
            delta.report_changes(tt.iter_changes(), change_reporter)
2631
2841
        for conflict in conflicts:
2632
 
            warning(conflict)
 
2842
            trace.warning(unicode(conflict))
2633
2843
        pp.next_phase()
2634
2844
        tt.apply()
2635
2845
        working_tree.set_merge_modified(merge_modified)
2643
2853
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2644
2854
                              backups, pp, basis_tree=None,
2645
2855
                              merge_modified=None):
2646
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2856
    child_pb = ui.ui_factory.nested_progress_bar()
2647
2857
    try:
2648
2858
        if merge_modified is None:
2649
2859
            merge_modified = working_tree.merge_modified()
2652
2862
                                      merge_modified, basis_tree)
2653
2863
    finally:
2654
2864
        child_pb.finished()
2655
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2865
    child_pb = ui.ui_factory.nested_progress_bar()
2656
2866
    try:
2657
2867
        raw_conflicts = resolve_conflicts(tt, child_pb,
2658
2868
            lambda t, c: conflict_pass(t, c, target_tree))
2666
2876
                 backups, merge_modified, basis_tree=None):
2667
2877
    if basis_tree is not None:
2668
2878
        basis_tree.lock_read()
2669
 
    change_list = target_tree.iter_changes(working_tree,
 
2879
    # We ask the working_tree for its changes relative to the target, rather
 
2880
    # than the target changes relative to the working tree. Because WT4 has an
 
2881
    # optimizer to compare itself to a target, but no optimizer for the
 
2882
    # reverse.
 
2883
    change_list = working_tree.iter_changes(target_tree,
2670
2884
        specific_files=specific_files, pb=pb)
2671
2885
    if target_tree.get_root_id() is None:
2672
2886
        skip_root = True
2676
2890
        deferred_files = []
2677
2891
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2678
2892
                kind, executable) in enumerate(change_list):
2679
 
            if skip_root and file_id[0] is not None and parent[0] is None:
 
2893
            target_path, wt_path = path
 
2894
            target_versioned, wt_versioned = versioned
 
2895
            target_parent, wt_parent = parent
 
2896
            target_name, wt_name = name
 
2897
            target_kind, wt_kind = kind
 
2898
            target_executable, wt_executable = executable
 
2899
            if skip_root and wt_parent is None:
2680
2900
                continue
2681
2901
            trans_id = tt.trans_id_file_id(file_id)
2682
2902
            mode_id = None
2683
2903
            if changed_content:
2684
2904
                keep_content = False
2685
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2905
                if wt_kind == 'file' and (backups or target_kind is None):
2686
2906
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2687
2907
                    if merge_modified.get(file_id) != wt_sha1:
2688
2908
                        # acquire the basis tree lazily to prevent the
2691
2911
                        if basis_tree is None:
2692
2912
                            basis_tree = working_tree.basis_tree()
2693
2913
                            basis_tree.lock_read()
2694
 
                        if file_id in basis_tree:
 
2914
                        if basis_tree.has_id(file_id):
2695
2915
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2696
2916
                                keep_content = True
2697
 
                        elif kind[1] is None and not versioned[1]:
 
2917
                        elif target_kind is None and not target_versioned:
2698
2918
                            keep_content = True
2699
 
                if kind[0] is not None:
 
2919
                if wt_kind is not None:
2700
2920
                    if not keep_content:
2701
2921
                        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)
 
2922
                    elif target_kind is not None:
 
2923
                        parent_trans_id = tt.trans_id_file_id(wt_parent)
 
2924
                        backup_name = tt._available_backup_name(
 
2925
                            wt_name, parent_trans_id)
2707
2926
                        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):
 
2927
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2928
                        if wt_versioned and target_versioned:
2710
2929
                            tt.unversion_file(trans_id)
2711
2930
                            tt.version_file(file_id, new_trans_id)
2712
2931
                        # New contents should have the same unix perms as old
2713
2932
                        # contents
2714
2933
                        mode_id = trans_id
2715
2934
                        trans_id = new_trans_id
2716
 
                if kind[1] in ('directory', 'tree-reference'):
 
2935
                if target_kind in ('directory', 'tree-reference'):
2717
2936
                    tt.create_directory(trans_id)
2718
 
                    if kind[1] == 'tree-reference':
 
2937
                    if target_kind == 'tree-reference':
2719
2938
                        revision = target_tree.get_reference_revision(file_id,
2720
 
                                                                      path[1])
 
2939
                                                                      target_path)
2721
2940
                        tt.set_tree_reference(revision, trans_id)
2722
 
                elif kind[1] == 'symlink':
 
2941
                elif target_kind == 'symlink':
2723
2942
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2724
2943
                                      trans_id)
2725
 
                elif kind[1] == 'file':
 
2944
                elif target_kind == 'file':
2726
2945
                    deferred_files.append((file_id, (trans_id, mode_id)))
2727
2946
                    if basis_tree is None:
2728
2947
                        basis_tree = working_tree.basis_tree()
2729
2948
                        basis_tree.lock_read()
2730
2949
                    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)):
 
2950
                    if (basis_tree.has_id(file_id) and
 
2951
                        new_sha1 == basis_tree.get_file_sha1(file_id)):
2733
2952
                        if file_id in merge_modified:
2734
2953
                            del merge_modified[file_id]
2735
2954
                    else:
2736
2955
                        merge_modified[file_id] = new_sha1
2737
2956
 
2738
2957
                    # 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):
 
2958
                    if keep_content and wt_executable == target_executable:
 
2959
                        tt.set_executability(target_executable, trans_id)
 
2960
                elif target_kind is not None:
 
2961
                    raise AssertionError(target_kind)
 
2962
            if not wt_versioned and target_versioned:
2744
2963
                tt.version_file(file_id, trans_id)
2745
 
            if versioned == (True, False):
 
2964
            if wt_versioned and not target_versioned:
2746
2965
                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:
 
2966
            if (target_name is not None and
 
2967
                (wt_name != target_name or wt_parent != target_parent)):
 
2968
                if target_name == '' and target_parent is None:
2750
2969
                    parent_trans = ROOT_PARENT
2751
2970
                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)
 
2971
                    parent_trans = tt.trans_id_file_id(target_parent)
 
2972
                if wt_parent is None and wt_versioned:
 
2973
                    tt.adjust_root_path(target_name, parent_trans)
2755
2974
                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)
 
2975
                    tt.adjust_path(target_name, parent_trans, trans_id)
 
2976
            if wt_executable != target_executable and target_kind == "file":
 
2977
                tt.set_executability(target_executable, trans_id)
2759
2978
        if working_tree.supports_content_filtering():
2760
2979
            for index, ((trans_id, mode_id), bytes) in enumerate(
2761
2980
                target_tree.iter_files_bytes(deferred_files)):
2787
3006
    pb = ui.ui_factory.nested_progress_bar()
2788
3007
    try:
2789
3008
        for n in range(10):
2790
 
            pb.update('Resolution pass', n+1, 10)
 
3009
            pb.update(gettext('Resolution pass'), n+1, 10)
2791
3010
            conflicts = tt.find_conflicts()
2792
3011
            if len(conflicts) == 0:
2793
3012
                return new_conflicts
2817
3036
                existing_file, new_file = conflict[2], conflict[1]
2818
3037
            else:
2819
3038
                existing_file, new_file = conflict[1], conflict[2]
2820
 
            new_name = tt.final_name(existing_file)+'.moved'
 
3039
            new_name = tt.final_name(existing_file) + '.moved'
2821
3040
            tt.adjust_path(new_name, final_parent, existing_file)
2822
3041
            new_conflicts.add((c_type, 'Moved existing file to',
2823
3042
                               existing_file, new_file))
2832
3051
 
2833
3052
        elif c_type == 'missing parent':
2834
3053
            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:
 
3054
            if trans_id in tt._removed_contents:
 
3055
                cancel_deletion = True
 
3056
                orphans = tt._get_potential_orphans(trans_id)
 
3057
                if orphans:
 
3058
                    cancel_deletion = False
 
3059
                    # All children are orphans
 
3060
                    for o in orphans:
 
3061
                        try:
 
3062
                            tt.new_orphan(o, trans_id)
 
3063
                        except OrphaningError:
 
3064
                            # Something bad happened so we cancel the directory
 
3065
                            # deletion which will leave it in place with a
 
3066
                            # conflict. The user can deal with it from there.
 
3067
                            # Note that this also catch the case where we don't
 
3068
                            # want to create orphans and leave the directory in
 
3069
                            # place.
 
3070
                            cancel_deletion = True
 
3071
                            break
 
3072
                if cancel_deletion:
 
3073
                    # Cancel the directory deletion
 
3074
                    tt.cancel_deletion(trans_id)
 
3075
                    new_conflicts.add(('deleting parent', 'Not deleting',
 
3076
                                       trans_id))
 
3077
            else:
2840
3078
                create = True
2841
3079
                try:
2842
3080
                    tt.final_name(trans_id)
2845
3083
                        file_id = tt.final_file_id(trans_id)
2846
3084
                        if file_id is None:
2847
3085
                            file_id = tt.inactive_file_id(trans_id)
2848
 
                        entry = path_tree.inventory[file_id]
 
3086
                        _, entry = next(path_tree.iter_entries_by_dir(
 
3087
                            [file_id]))
2849
3088
                        # special-case the other tree root (move its
2850
3089
                        # children to current root)
2851
3090
                        if entry.parent_id is None:
2866
3105
        elif c_type == 'unversioned parent':
2867
3106
            file_id = tt.inactive_file_id(conflict[1])
2868
3107
            # 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:
 
3108
            if path_tree and path_tree.has_id(file_id):
 
3109
                if path_tree.path2id('') == file_id:
 
3110
                    # This is the root entry, skip it
2871
3111
                    continue
2872
3112
            tt.version_file(file_id, conflict[1])
2873
3113
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2889
3129
 
2890
3130
def cook_conflicts(raw_conflicts, tt):
2891
3131
    """Generate a list of cooked conflicts, sorted by file path"""
2892
 
    from bzrlib.conflicts import Conflict
2893
3132
    conflict_iter = iter_cook_conflicts(raw_conflicts, tt)
2894
 
    return sorted(conflict_iter, key=Conflict.sort_key)
 
3133
    return sorted(conflict_iter, key=conflicts.Conflict.sort_key)
2895
3134
 
2896
3135
 
2897
3136
def iter_cook_conflicts(raw_conflicts, tt):
2898
 
    from bzrlib.conflicts import Conflict
2899
3137
    fp = FinalPaths(tt)
2900
3138
    for conflict in raw_conflicts:
2901
3139
        c_type = conflict[0]
2903
3141
        modified_path = fp.get_path(conflict[2])
2904
3142
        modified_id = tt.final_file_id(conflict[2])
2905
3143
        if len(conflict) == 3:
2906
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2907
 
                                     file_id=modified_id)
 
3144
            yield conflicts.Conflict.factory(
 
3145
                c_type, action=action, path=modified_path, file_id=modified_id)
2908
3146
 
2909
3147
        else:
2910
3148
            conflicting_path = fp.get_path(conflict[3])
2911
3149
            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)
 
3150
            yield conflicts.Conflict.factory(
 
3151
                c_type, action=action, path=modified_path,
 
3152
                file_id=modified_id,
 
3153
                conflict_path=conflicting_path,
 
3154
                conflict_file_id=conflicting_id)
2916
3155
 
2917
3156
 
2918
3157
class _FileMover(object):
2925
3164
    def rename(self, from_, to):
2926
3165
        """Rename a file from one path to another."""
2927
3166
        try:
2928
 
            osutils.rename(from_, to)
2929
 
        except OSError, e:
 
3167
            os.rename(from_, to)
 
3168
        except OSError as e:
2930
3169
            if e.errno in (errno.EEXIST, errno.ENOTEMPTY):
2931
3170
                raise errors.FileExists(to, str(e))
2932
 
            raise
 
3171
            # normal OSError doesn't include filenames so it's hard to see where
 
3172
            # the problem is, see https://bugs.launchpad.net/bzr/+bug/491763
 
3173
            raise errors.TransformRenameFailed(from_, to, str(e), e.errno)
2933
3174
        self.past_renames.append((from_, to))
2934
3175
 
2935
3176
    def pre_delete(self, from_, to):
2945
3186
    def rollback(self):
2946
3187
        """Reverse all renames that have been performed"""
2947
3188
        for from_, to in reversed(self.past_renames):
2948
 
            osutils.rename(to, from_)
 
3189
            try:
 
3190
                os.rename(to, from_)
 
3191
            except OSError as e:
 
3192
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)
2949
3193
        # after rollback, don't reuse _FileMover
2950
3194
        past_renames = None
2951
3195
        pending_deletions = None