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  • Committer: Vincent Ladeuil
  • Date: 2015-10-23 09:05:09 UTC
  • mto: This revision was merged to the branch mainline in revision 6612.
  • Revision ID: v.ladeuil+lp@free.fr-20151023090509-rd6ecc21opzfgx8f
Add rename() and open_write_stream() as explicitly not supported via the ReadonlyTransportDecorator to give better feedback when a decorated transport is misused

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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 (
 
25
    config as _mod_config,
 
26
    errors,
 
27
    lazy_import,
 
28
    registry,
 
29
    trace,
 
30
    tree,
 
31
    )
 
32
lazy_import.lazy_import(globals(), """
24
33
from bzrlib 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 bzrlib.i18n import gettext
37
48
""")
38
 
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
 
49
from bzrlib.errors import (DuplicateKey, MalformedTransform,
39
50
                           ReusingTransform, CantMoveRoot,
40
 
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
 
51
                           ImmortalLimbo, NoFinalPath,
41
52
                           UnableCreateSymlink)
42
53
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
43
 
from bzrlib.inventory import InventoryEntry
 
54
from bzrlib.mutabletree import MutableTree
44
55
from bzrlib.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
 
)
 
62
    )
54
63
from bzrlib.progress import ProgressPhase
55
64
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
 
65
    deprecated_function,
 
66
    deprecated_in,
 
67
    deprecated_method,
 
68
    )
63
69
 
64
70
 
65
71
ROOT_PARENT = "root-parent"
66
72
 
67
 
 
68
73
def unique_add(map, key, value):
69
74
    if key in map:
70
75
        raise DuplicateKey(key=key)
71
76
    map[key] = value
72
77
 
73
78
 
 
79
 
74
80
class _TransformResults(object):
75
81
    def __init__(self, modified_paths, rename_count):
76
82
        object.__init__(self)
100
106
        self._new_parent = {}
101
107
        # mapping of trans_id with new contents -> new file_kind
102
108
        self._new_contents = {}
 
109
        # mapping of trans_id => (sha1 of content, stat_value)
 
110
        self._observed_sha1s = {}
103
111
        # Set of trans_ids whose contents will be removed
104
112
        self._removed_contents = set()
105
113
        # Mapping of trans_id -> new execute-bit value
124
132
            self._new_root = self.trans_id_tree_file_id(root_id)
125
133
        else:
126
134
            self._new_root = None
127
 
        # Indictor of whether the transform has been applied
 
135
        # Indicator of whether the transform has been applied
128
136
        self._done = False
129
137
        # A progress bar
130
138
        self._pb = pb
133
141
        # A counter of how many files have been renamed
134
142
        self.rename_count = 0
135
143
 
 
144
    def __enter__(self):
 
145
        """Support Context Manager API."""
 
146
        return self
 
147
 
 
148
    def __exit__(self, exc_type, exc_val, exc_tb):
 
149
        """Support Context Manager API."""
 
150
        self.finalize()
 
151
 
136
152
    def finalize(self):
137
153
        """Release the working tree lock, if held.
138
154
 
141
157
        """
142
158
        if self._tree is None:
143
159
            return
 
160
        for hook in MutableTree.hooks['post_transform']:
 
161
            hook(self._tree, self)
144
162
        self._tree.unlock()
145
163
        self._tree = None
146
164
 
213
231
        This means that the old root trans-id becomes obsolete, so it is
214
232
        recommended only to invoke this after the root trans-id has become
215
233
        irrelevant.
 
234
 
216
235
        """
217
 
        new_roots = [k for k, v in self._new_parent.iteritems() if v is
 
236
        new_roots = [k for k, v in self._new_parent.iteritems() if v ==
218
237
                     ROOT_PARENT]
219
238
        if len(new_roots) < 1:
220
239
            return
224
243
            self._new_root = new_roots[0]
225
244
            return
226
245
        old_new_root = new_roots[0]
227
 
        # TODO: What to do if a old_new_root is present, but self._new_root is
228
 
        #       not listed as being removed? This code explicitly unversions
229
 
        #       the old root and versions it with the new file_id. Though that
230
 
        #       seems like an incomplete delta
231
 
 
232
246
        # unversion the new root's directory.
233
 
        file_id = self.final_file_id(old_new_root)
 
247
        if self.final_kind(self._new_root) is None:
 
248
            file_id = self.final_file_id(old_new_root)
 
249
        else:
 
250
            file_id = self.final_file_id(self._new_root)
234
251
        if old_new_root in self._new_id:
235
252
            self.cancel_versioning(old_new_root)
236
253
        else:
240
257
        if (self.tree_file_id(self._new_root) is not None and
241
258
            self._new_root not in self._removed_id):
242
259
            self.unversion_file(self._new_root)
243
 
        self.version_file(file_id, self._new_root)
 
260
        if file_id is not None:
 
261
            self.version_file(file_id, self._new_root)
244
262
 
245
263
        # Now move children of new root into old root directory.
246
264
        # Ensure all children are registered with the transaction, but don't
315
333
 
316
334
    def delete_contents(self, trans_id):
317
335
        """Schedule the contents of a path entry for deletion"""
318
 
        # Ensure that the object exists in the WorkingTree, this will raise an
319
 
        # exception if there is a problem
320
 
        self.tree_kind(trans_id)
321
 
        self._removed_contents.add(trans_id)
 
336
        kind = self.tree_kind(trans_id)
 
337
        if kind is not None:
 
338
            self._removed_contents.add(trans_id)
322
339
 
323
340
    def cancel_deletion(self, trans_id):
324
341
        """Cancel a scheduled deletion"""
381
398
        return sorted(FinalPaths(self).get_paths(new_ids))
382
399
 
383
400
    def _inventory_altered(self):
384
 
        """Get the trans_ids and paths of files needing new inv entries."""
385
 
        new_ids = set()
386
 
        for id_set in [self._new_name, self._new_parent, self._new_id,
 
401
        """Determine which trans_ids need new Inventory entries.
 
402
 
 
403
        An new entry is needed when anything that would be reflected by an
 
404
        inventory entry changes, including file name, file_id, parent file_id,
 
405
        file kind, and the execute bit.
 
406
 
 
407
        Some care is taken to return entries with real changes, not cases
 
408
        where the value is deleted and then restored to its original value,
 
409
        but some actually unchanged values may be returned.
 
410
 
 
411
        :returns: A list of (path, trans_id) for all items requiring an
 
412
            inventory change. Ordered by path.
 
413
        """
 
414
        changed_ids = set()
 
415
        # Find entries whose file_ids are new (or changed).
 
416
        new_file_id = set(t for t in self._new_id
 
417
                          if self._new_id[t] != self.tree_file_id(t))
 
418
        for id_set in [self._new_name, self._new_parent, new_file_id,
387
419
                       self._new_executability]:
388
 
            new_ids.update(id_set)
 
420
            changed_ids.update(id_set)
 
421
        # removing implies a kind change
389
422
        changed_kind = set(self._removed_contents)
 
423
        # so does adding
390
424
        changed_kind.intersection_update(self._new_contents)
391
 
        changed_kind.difference_update(new_ids)
392
 
        changed_kind = (t for t in changed_kind if self.tree_kind(t) !=
393
 
                        self.final_kind(t))
394
 
        new_ids.update(changed_kind)
395
 
        return sorted(FinalPaths(self).get_paths(new_ids))
 
425
        # Ignore entries that are already known to have changed.
 
426
        changed_kind.difference_update(changed_ids)
 
427
        #  to keep only the truly changed ones
 
428
        changed_kind = (t for t in changed_kind
 
429
                        if self.tree_kind(t) != self.final_kind(t))
 
430
        # all kind changes will alter the inventory
 
431
        changed_ids.update(changed_kind)
 
432
        # To find entries with changed parent_ids, find parents which existed,
 
433
        # but changed file_id.
 
434
        changed_file_id = set(t for t in new_file_id if t in self._removed_id)
 
435
        # Now add all their children to the set.
 
436
        for parent_trans_id in new_file_id:
 
437
            changed_ids.update(self.iter_tree_children(parent_trans_id))
 
438
        return sorted(FinalPaths(self).get_paths(changed_ids))
396
439
 
397
440
    def final_kind(self, trans_id):
398
441
        """Determine the final file kind, after any changes applied.
399
442
 
400
 
        Raises NoSuchFile if the file does not exist/has no contents.
401
 
        (It is conceivable that a path would be created without the
402
 
        corresponding contents insertion command)
 
443
        :return: None if the file does not exist/has no contents.  (It is
 
444
            conceivable that a path would be created without the corresponding
 
445
            contents insertion command)
403
446
        """
404
447
        if trans_id in self._new_contents:
405
448
            return self._new_contents[trans_id]
406
449
        elif trans_id in self._removed_contents:
407
 
            raise NoSuchFile(None)
 
450
            return None
408
451
        else:
409
452
            return self.tree_kind(trans_id)
410
453
 
523
566
        for trans_id in self._removed_id:
524
567
            file_id = self.tree_file_id(trans_id)
525
568
            if file_id is not None:
526
 
                if self._tree.inventory[file_id].kind == 'directory':
 
569
                if self._tree.stored_kind(file_id) == 'directory':
527
570
                    parents.append(trans_id)
528
571
            elif self.tree_kind(trans_id) == 'directory':
529
572
                parents.append(trans_id)
532
575
            # ensure that all children are registered with the transaction
533
576
            list(self.iter_tree_children(parent_id))
534
577
 
535
 
    def has_named_child(self, by_parent, parent_id, name):
536
 
        try:
537
 
            children = by_parent[parent_id]
538
 
        except KeyError:
539
 
            children = []
540
 
        for child in children:
 
578
    def _has_named_child(self, name, parent_id, known_children):
 
579
        """Does a parent already have a name child.
 
580
 
 
581
        :param name: The searched for name.
 
582
 
 
583
        :param parent_id: The parent for which the check is made.
 
584
 
 
585
        :param known_children: The already known children. This should have
 
586
            been recently obtained from `self.by_parent.get(parent_id)`
 
587
            (or will be if None is passed).
 
588
        """
 
589
        if known_children is None:
 
590
            known_children = self.by_parent().get(parent_id, [])
 
591
        for child in known_children:
541
592
            if self.final_name(child) == name:
542
593
                return True
543
 
        try:
544
 
            path = self._tree_id_paths[parent_id]
545
 
        except KeyError:
 
594
        parent_path = self._tree_id_paths.get(parent_id, None)
 
595
        if parent_path is None:
 
596
            # No parent... no children
546
597
            return False
547
 
        childpath = joinpath(path, name)
548
 
        child_id = self._tree_path_ids.get(childpath)
 
598
        child_path = joinpath(parent_path, name)
 
599
        child_id = self._tree_path_ids.get(child_path, None)
549
600
        if child_id is None:
550
 
            return lexists(self._tree.abspath(childpath))
 
601
            # Not known by the tree transform yet, check the filesystem
 
602
            return osutils.lexists(self._tree.abspath(child_path))
551
603
        else:
552
 
            if self.final_parent(child_id) != parent_id:
553
 
                return False
554
 
            if child_id in self._removed_contents:
555
 
                # XXX What about dangling file-ids?
556
 
                return False
557
 
            else:
558
 
                return True
 
604
            raise AssertionError('child_id is missing: %s, %s, %s'
 
605
                                 % (name, parent_id, child_id))
 
606
 
 
607
    def _available_backup_name(self, name, target_id):
 
608
        """Find an available backup name.
 
609
 
 
610
        :param name: The basename of the file.
 
611
 
 
612
        :param target_id: The directory trans_id where the backup should 
 
613
            be placed.
 
614
        """
 
615
        known_children = self.by_parent().get(target_id, [])
 
616
        return osutils.available_backup_name(
 
617
            name,
 
618
            lambda base: self._has_named_child(
 
619
                base, target_id, known_children))
559
620
 
560
621
    def _parent_loops(self):
561
622
        """No entry should be its own ancestor"""
563
624
        for trans_id in self._new_parent:
564
625
            seen = set()
565
626
            parent_id = trans_id
566
 
            while parent_id is not ROOT_PARENT:
 
627
            while parent_id != ROOT_PARENT:
567
628
                seen.add(parent_id)
568
629
                try:
569
630
                    parent_id = self.final_parent(parent_id)
579
640
        """If parent directories are versioned, children must be versioned."""
580
641
        conflicts = []
581
642
        for parent_id, children in by_parent.iteritems():
582
 
            if parent_id is ROOT_PARENT:
 
643
            if parent_id == ROOT_PARENT:
583
644
                continue
584
645
            if self.final_file_id(parent_id) is not None:
585
646
                continue
596
657
        """
597
658
        conflicts = []
598
659
        for trans_id in self._new_id.iterkeys():
599
 
            try:
600
 
                kind = self.final_kind(trans_id)
601
 
            except NoSuchFile:
 
660
            kind = self.final_kind(trans_id)
 
661
            if kind is None:
602
662
                conflicts.append(('versioning no contents', trans_id))
603
663
                continue
604
 
            if not InventoryEntry.versionable_kind(kind):
 
664
            if not inventory.InventoryEntry.versionable_kind(kind):
605
665
                conflicts.append(('versioning bad kind', trans_id, kind))
606
666
        return conflicts
607
667
 
618
678
            if self.final_file_id(trans_id) is None:
619
679
                conflicts.append(('unversioned executability', trans_id))
620
680
            else:
621
 
                try:
622
 
                    non_file = self.final_kind(trans_id) != "file"
623
 
                except NoSuchFile:
624
 
                    non_file = True
625
 
                if non_file is True:
 
681
                if self.final_kind(trans_id) != "file":
626
682
                    conflicts.append(('non-file executability', trans_id))
627
683
        return conflicts
628
684
 
630
686
        """Check for overwrites (not permitted on Win32)"""
631
687
        conflicts = []
632
688
        for trans_id in self._new_contents:
633
 
            try:
634
 
                self.tree_kind(trans_id)
635
 
            except NoSuchFile:
 
689
            if self.tree_kind(trans_id) is None:
636
690
                continue
637
691
            if trans_id not in self._removed_contents:
638
692
                conflicts.append(('overwrite', trans_id,
645
699
        if (self._new_name, self._new_parent) == ({}, {}):
646
700
            return conflicts
647
701
        for children in by_parent.itervalues():
648
 
            name_ids = [(self.final_name(t), t) for t in children]
649
 
            if not self._case_sensitive_target:
650
 
                name_ids = [(n.lower(), t) for n, t in name_ids]
 
702
            name_ids = []
 
703
            for child_tid in children:
 
704
                name = self.final_name(child_tid)
 
705
                if name is not None:
 
706
                    # Keep children only if they still exist in the end
 
707
                    if not self._case_sensitive_target:
 
708
                        name = name.lower()
 
709
                    name_ids.append((name, child_tid))
651
710
            name_ids.sort()
652
711
            last_name = None
653
712
            last_trans_id = None
654
713
            for name, trans_id in name_ids:
655
 
                try:
656
 
                    kind = self.final_kind(trans_id)
657
 
                except NoSuchFile:
658
 
                    kind = None
 
714
                kind = self.final_kind(trans_id)
659
715
                file_id = self.final_file_id(trans_id)
660
716
                if kind is None and file_id is None:
661
717
                    continue
680
736
        return conflicts
681
737
 
682
738
    def _parent_type_conflicts(self, by_parent):
683
 
        """parents must have directory 'contents'."""
 
739
        """Children must have a directory parent"""
684
740
        conflicts = []
685
741
        for parent_id, children in by_parent.iteritems():
686
 
            if parent_id is ROOT_PARENT:
687
 
                continue
688
 
            if not self._any_contents(children):
689
 
                continue
690
 
            for child in children:
691
 
                try:
692
 
                    self.final_kind(child)
693
 
                except NoSuchFile:
694
 
                    continue
695
 
            try:
696
 
                kind = self.final_kind(parent_id)
697
 
            except NoSuchFile:
698
 
                kind = None
 
742
            if parent_id == ROOT_PARENT:
 
743
                continue
 
744
            no_children = True
 
745
            for child_id in children:
 
746
                if self.final_kind(child_id) is not None:
 
747
                    no_children = False
 
748
                    break
 
749
            if no_children:
 
750
                continue
 
751
            # There is at least a child, so we need an existing directory to
 
752
            # contain it.
 
753
            kind = self.final_kind(parent_id)
699
754
            if kind is None:
 
755
                # The directory will be deleted
700
756
                conflicts.append(('missing parent', parent_id))
701
757
            elif kind != "directory":
 
758
                # Meh, we need a *directory* to put something in it
702
759
                conflicts.append(('non-directory parent', parent_id))
703
760
        return conflicts
704
761
 
705
 
    def _any_contents(self, trans_ids):
706
 
        """Return true if any of the trans_ids, will have contents."""
707
 
        for trans_id in trans_ids:
708
 
            try:
709
 
                kind = self.final_kind(trans_id)
710
 
            except NoSuchFile:
711
 
                continue
712
 
            return True
713
 
        return False
714
 
 
715
762
    def _set_executability(self, path, trans_id):
716
763
        """Set the executability of versioned files """
717
 
        if supports_executable():
 
764
        if self._tree._supports_executable():
718
765
            new_executability = self._new_executability[trans_id]
719
766
            abspath = self._tree.abspath(path)
720
767
            current_mode = os.stat(abspath).st_mode
729
776
                    to_mode |= 0010 & ~umask
730
777
            else:
731
778
                to_mode = current_mode & ~0111
732
 
            os.chmod(abspath, to_mode)
 
779
            osutils.chmod_if_possible(abspath, to_mode)
733
780
 
734
781
    def _new_entry(self, name, parent_id, file_id):
735
782
        """Helper function to create a new filesystem entry."""
739
786
        return trans_id
740
787
 
741
788
    def new_file(self, name, parent_id, contents, file_id=None,
742
 
                 executable=None):
 
789
                 executable=None, sha1=None):
743
790
        """Convenience method to create files.
744
791
 
745
792
        name is the name of the file to create.
752
799
        trans_id = self._new_entry(name, parent_id, file_id)
753
800
        # TODO: rather than scheduling a set_executable call,
754
801
        # have create_file create the file with the right mode.
755
 
        self.create_file(contents, trans_id)
 
802
        self.create_file(contents, trans_id, sha1=sha1)
756
803
        if executable is not None:
757
804
            self.set_executability(executable, trans_id)
758
805
        return trans_id
781
828
        self.create_symlink(target, trans_id)
782
829
        return trans_id
783
830
 
 
831
    def new_orphan(self, trans_id, parent_id):
 
832
        """Schedule an item to be orphaned.
 
833
 
 
834
        When a directory is about to be removed, its children, if they are not
 
835
        versioned are moved out of the way: they don't have a parent anymore.
 
836
 
 
837
        :param trans_id: The trans_id of the existing item.
 
838
        :param parent_id: The parent trans_id of the item.
 
839
        """
 
840
        raise NotImplementedError(self.new_orphan)
 
841
 
 
842
    def _get_potential_orphans(self, dir_id):
 
843
        """Find the potential orphans in a directory.
 
844
 
 
845
        A directory can't be safely deleted if there are versioned files in it.
 
846
        If all the contained files are unversioned then they can be orphaned.
 
847
 
 
848
        The 'None' return value means that the directory contains at least one
 
849
        versioned file and should not be deleted.
 
850
 
 
851
        :param dir_id: The directory trans id.
 
852
 
 
853
        :return: A list of the orphan trans ids or None if at least one
 
854
             versioned file is present.
 
855
        """
 
856
        orphans = []
 
857
        # Find the potential orphans, stop if one item should be kept
 
858
        for child_tid in self.by_parent()[dir_id]:
 
859
            if child_tid in self._removed_contents:
 
860
                # The child is removed as part of the transform. Since it was
 
861
                # versioned before, it's not an orphan
 
862
                continue
 
863
            elif self.final_file_id(child_tid) is None:
 
864
                # The child is not versioned
 
865
                orphans.append(child_tid)
 
866
            else:
 
867
                # We have a versioned file here, searching for orphans is
 
868
                # meaningless.
 
869
                orphans = None
 
870
                break
 
871
        return orphans
 
872
 
784
873
    def _affected_ids(self):
785
874
        """Return the set of transform ids affected by the transform"""
786
875
        trans_ids = set(self._removed_id)
845
934
        Return a (name, parent, kind, executable) tuple
846
935
        """
847
936
        to_name = self.final_name(to_trans_id)
848
 
        try:
849
 
            to_kind = self.final_kind(to_trans_id)
850
 
        except NoSuchFile:
851
 
            to_kind = None
 
937
        to_kind = self.final_kind(to_trans_id)
852
938
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
853
939
        if to_trans_id in self._new_executability:
854
940
            to_executable = self._new_executability[to_trans_id]
1101
1187
        self._deletiondir = None
1102
1188
        # A mapping of transform ids to their limbo filename
1103
1189
        self._limbo_files = {}
 
1190
        self._possibly_stale_limbo_files = set()
1104
1191
        # A mapping of transform ids to a set of the transform ids of children
1105
1192
        # that their limbo directory has
1106
1193
        self._limbo_children = {}
1119
1206
        if self._tree is None:
1120
1207
            return
1121
1208
        try:
1122
 
            entries = [(self._limbo_name(t), t, k) for t, k in
1123
 
                       self._new_contents.iteritems()]
1124
 
            entries.sort(reverse=True)
1125
 
            for path, trans_id, kind in entries:
1126
 
                delete_any(path)
 
1209
            limbo_paths = self._limbo_files.values() + list(
 
1210
                self._possibly_stale_limbo_files)
 
1211
            limbo_paths = sorted(limbo_paths, reverse=True)
 
1212
            for path in limbo_paths:
 
1213
                try:
 
1214
                    delete_any(path)
 
1215
                except OSError, e:
 
1216
                    if e.errno != errno.ENOENT:
 
1217
                        raise
 
1218
                    # XXX: warn? perhaps we just got interrupted at an
 
1219
                    # inconvenient moment, but perhaps files are disappearing
 
1220
                    # from under us?
1127
1221
            try:
1128
1222
                delete_any(self._limbodir)
1129
1223
            except OSError:
1137
1231
        finally:
1138
1232
            TreeTransformBase.finalize(self)
1139
1233
 
 
1234
    def _limbo_supports_executable(self):
 
1235
        """Check if the limbo path supports the executable bit."""
 
1236
        # FIXME: Check actual file system capabilities of limbodir
 
1237
        return osutils.supports_executable()
 
1238
 
1140
1239
    def _limbo_name(self, trans_id):
1141
1240
        """Generate the limbo name of a file"""
1142
1241
        limbo_name = self._limbo_files.get(trans_id)
1178
1277
        entries from _limbo_files, because they are now stale.
1179
1278
        """
1180
1279
        for trans_id in trans_ids:
1181
 
            old_path = self._limbo_files.pop(trans_id)
 
1280
            old_path = self._limbo_files[trans_id]
 
1281
            self._possibly_stale_limbo_files.add(old_path)
 
1282
            del self._limbo_files[trans_id]
1182
1283
            if trans_id not in self._new_contents:
1183
1284
                continue
1184
1285
            new_path = self._limbo_name(trans_id)
1185
1286
            os.rename(old_path, new_path)
 
1287
            self._possibly_stale_limbo_files.remove(old_path)
1186
1288
            for descendant in self._limbo_descendants(trans_id):
1187
1289
                desc_path = self._limbo_files[descendant]
1188
1290
                desc_path = new_path + desc_path[len(old_path):]
1195
1297
            descendants.update(self._limbo_descendants(descendant))
1196
1298
        return descendants
1197
1299
 
1198
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1300
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1199
1301
        """Schedule creation of a new file.
1200
1302
 
1201
 
        See also new_file.
1202
 
 
1203
 
        Contents is an iterator of strings, all of which will be written
1204
 
        to the target destination.
1205
 
 
1206
 
        New file takes the permissions of any existing file with that id,
1207
 
        unless mode_id is specified.
 
1303
        :seealso: new_file.
 
1304
 
 
1305
        :param contents: an iterator of strings, all of which will be written
 
1306
            to the target destination.
 
1307
        :param trans_id: TreeTransform handle
 
1308
        :param mode_id: If not None, force the mode of the target file to match
 
1309
            the mode of the object referenced by mode_id.
 
1310
            Otherwise, we will try to preserve mode bits of an existing file.
 
1311
        :param sha1: If the sha1 of this content is already known, pass it in.
 
1312
            We can use it to prevent future sha1 computations.
1208
1313
        """
1209
1314
        name = self._limbo_name(trans_id)
1210
1315
        f = open(name, 'wb')
1211
1316
        try:
1212
 
            try:
1213
 
                unique_add(self._new_contents, trans_id, 'file')
1214
 
            except:
1215
 
                # Clean up the file, it never got registered so
1216
 
                # TreeTransform.finalize() won't clean it up.
1217
 
                f.close()
1218
 
                os.unlink(name)
1219
 
                raise
1220
 
 
 
1317
            unique_add(self._new_contents, trans_id, 'file')
1221
1318
            f.writelines(contents)
1222
1319
        finally:
1223
1320
            f.close()
1224
1321
        self._set_mtime(name)
1225
1322
        self._set_mode(trans_id, mode_id, S_ISREG)
 
1323
        # It is unfortunate we have to use lstat instead of fstat, but we just
 
1324
        # used utime and chmod on the file, so we need the accurate final
 
1325
        # details.
 
1326
        if sha1 is not None:
 
1327
            self._observed_sha1s[trans_id] = (sha1, osutils.lstat(name))
1226
1328
 
1227
1329
    def _read_file_chunks(self, trans_id):
1228
1330
        cur_file = open(self._limbo_name(trans_id), 'rb')
1287
1389
    def cancel_creation(self, trans_id):
1288
1390
        """Cancel the creation of new file contents."""
1289
1391
        del self._new_contents[trans_id]
 
1392
        if trans_id in self._observed_sha1s:
 
1393
            del self._observed_sha1s[trans_id]
1290
1394
        children = self._limbo_children.get(trans_id)
1291
1395
        # if this is a limbo directory with children, move them before removing
1292
1396
        # the directory
1296
1400
            del self._limbo_children_names[trans_id]
1297
1401
        delete_any(self._limbo_name(trans_id))
1298
1402
 
 
1403
    def new_orphan(self, trans_id, parent_id):
 
1404
        conf = self._tree.get_config_stack()
 
1405
        handle_orphan = conf.get('bzr.transform.orphan_policy')
 
1406
        handle_orphan(self, trans_id, parent_id)
 
1407
 
 
1408
 
 
1409
class OrphaningError(errors.BzrError):
 
1410
 
 
1411
    # Only bugs could lead to such exception being seen by the user
 
1412
    internal_error = True
 
1413
    _fmt = "Error while orphaning %s in %s directory"
 
1414
 
 
1415
    def __init__(self, orphan, parent):
 
1416
        errors.BzrError.__init__(self)
 
1417
        self.orphan = orphan
 
1418
        self.parent = parent
 
1419
 
 
1420
 
 
1421
class OrphaningForbidden(OrphaningError):
 
1422
 
 
1423
    _fmt = "Policy: %s doesn't allow creating orphans."
 
1424
 
 
1425
    def __init__(self, policy):
 
1426
        errors.BzrError.__init__(self)
 
1427
        self.policy = policy
 
1428
 
 
1429
 
 
1430
def move_orphan(tt, orphan_id, parent_id):
 
1431
    """See TreeTransformBase.new_orphan.
 
1432
 
 
1433
    This creates a new orphan in the `bzr-orphans` dir at the root of the
 
1434
    `TreeTransform`.
 
1435
 
 
1436
    :param tt: The TreeTransform orphaning `trans_id`.
 
1437
 
 
1438
    :param orphan_id: The trans id that should be orphaned.
 
1439
 
 
1440
    :param parent_id: The orphan parent trans id.
 
1441
    """
 
1442
    # Add the orphan dir if it doesn't exist
 
1443
    orphan_dir_basename = 'bzr-orphans'
 
1444
    od_id = tt.trans_id_tree_path(orphan_dir_basename)
 
1445
    if tt.final_kind(od_id) is None:
 
1446
        tt.create_directory(od_id)
 
1447
    parent_path = tt._tree_id_paths[parent_id]
 
1448
    # Find a name that doesn't exist yet in the orphan dir
 
1449
    actual_name = tt.final_name(orphan_id)
 
1450
    new_name = tt._available_backup_name(actual_name, od_id)
 
1451
    tt.adjust_path(new_name, od_id, orphan_id)
 
1452
    trace.warning('%s has been orphaned in %s'
 
1453
                  % (joinpath(parent_path, actual_name), orphan_dir_basename))
 
1454
 
 
1455
 
 
1456
def refuse_orphan(tt, orphan_id, parent_id):
 
1457
    """See TreeTransformBase.new_orphan.
 
1458
 
 
1459
    This refuses to create orphan, letting the caller handle the conflict.
 
1460
    """
 
1461
    raise OrphaningForbidden('never')
 
1462
 
 
1463
 
 
1464
orphaning_registry = registry.Registry()
 
1465
orphaning_registry.register(
 
1466
    'conflict', refuse_orphan,
 
1467
    'Leave orphans in place and create a conflict on the directory.')
 
1468
orphaning_registry.register(
 
1469
    'move', move_orphan,
 
1470
    'Move orphans into the bzr-orphans directory.')
 
1471
orphaning_registry._set_default_key('conflict')
 
1472
 
 
1473
 
 
1474
opt_transform_orphan = _mod_config.RegistryOption(
 
1475
    'bzr.transform.orphan_policy', orphaning_registry,
 
1476
    help='Policy for orphaned files during transform operations.',
 
1477
    invalid='warning')
 
1478
 
1299
1479
 
1300
1480
class TreeTransform(DiskTreeTransform):
1301
1481
    """Represent a tree transformation.
1373
1553
        try:
1374
1554
            limbodir = urlutils.local_path_from_url(
1375
1555
                tree._transport.abspath('limbo'))
1376
 
            try:
1377
 
                os.mkdir(limbodir)
1378
 
            except OSError, e:
1379
 
                if e.errno == errno.EEXIST:
1380
 
                    raise ExistingLimbo(limbodir)
 
1556
            osutils.ensure_empty_directory_exists(
 
1557
                limbodir,
 
1558
                errors.ExistingLimbo)
1381
1559
            deletiondir = urlutils.local_path_from_url(
1382
1560
                tree._transport.abspath('pending-deletion'))
1383
 
            try:
1384
 
                os.mkdir(deletiondir)
1385
 
            except OSError, e:
1386
 
                if e.errno == errno.EEXIST:
1387
 
                    raise errors.ExistingPendingDeletion(deletiondir)
 
1561
            osutils.ensure_empty_directory_exists(
 
1562
                deletiondir,
 
1563
                errors.ExistingPendingDeletion)
1388
1564
        except:
1389
1565
            tree.unlock()
1390
1566
            raise
1419
1595
    def tree_kind(self, trans_id):
1420
1596
        """Determine the file kind in the working tree.
1421
1597
 
1422
 
        Raises NoSuchFile if the file does not exist
 
1598
        :returns: The file kind or None if the file does not exist
1423
1599
        """
1424
1600
        path = self._tree_id_paths.get(trans_id)
1425
1601
        if path is None:
1426
 
            raise NoSuchFile(None)
 
1602
            return None
1427
1603
        try:
1428
1604
            return file_kind(self._tree.abspath(path))
1429
 
        except OSError, e:
1430
 
            if e.errno != errno.ENOENT:
1431
 
                raise
1432
 
            else:
1433
 
                raise NoSuchFile(path)
 
1605
        except errors.NoSuchFile:
 
1606
            return None
1434
1607
 
1435
1608
    def _set_mode(self, trans_id, mode_id, typefunc):
1436
1609
        """Set the mode of new file contents.
1456
1629
            else:
1457
1630
                raise
1458
1631
        if typefunc(mode):
1459
 
            os.chmod(self._limbo_name(trans_id), mode)
 
1632
            osutils.chmod_if_possible(self._limbo_name(trans_id), mode)
1460
1633
 
1461
1634
    def iter_tree_children(self, parent_id):
1462
1635
        """Iterate through the entry's tree children, if any"""
1540
1713
            calculating one.
1541
1714
        :param _mover: Supply an alternate FileMover, for testing
1542
1715
        """
 
1716
        for hook in MutableTree.hooks['pre_transform']:
 
1717
            hook(self._tree, self)
1543
1718
        if not no_conflicts:
1544
1719
            self._check_malformed()
1545
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1720
        child_pb = ui.ui_factory.nested_progress_bar()
1546
1721
        try:
1547
1722
            if precomputed_delta is None:
1548
 
                child_pb.update('Apply phase', 0, 2)
 
1723
                child_pb.update(gettext('Apply phase'), 0, 2)
1549
1724
                inventory_delta = self._generate_inventory_delta()
1550
1725
                offset = 1
1551
1726
            else:
1556
1731
            else:
1557
1732
                mover = _mover
1558
1733
            try:
1559
 
                child_pb.update('Apply phase', 0 + offset, 2 + offset)
 
1734
                child_pb.update(gettext('Apply phase'), 0 + offset, 2 + offset)
1560
1735
                self._apply_removals(mover)
1561
 
                child_pb.update('Apply phase', 1 + offset, 2 + offset)
 
1736
                child_pb.update(gettext('Apply phase'), 1 + offset, 2 + offset)
1562
1737
                modified_paths = self._apply_insertions(mover)
1563
1738
            except:
1564
1739
                mover.rollback()
1567
1742
                mover.apply_deletions()
1568
1743
        finally:
1569
1744
            child_pb.finished()
 
1745
        if self.final_file_id(self.root) is None:
 
1746
            inventory_delta = [e for e in inventory_delta if e[0] != '']
1570
1747
        self._tree.apply_inventory_delta(inventory_delta)
 
1748
        self._apply_observed_sha1s()
1571
1749
        self._done = True
1572
1750
        self.finalize()
1573
1751
        return _TransformResults(modified_paths, self.rename_count)
1575
1753
    def _generate_inventory_delta(self):
1576
1754
        """Generate an inventory delta for the current transform."""
1577
1755
        inventory_delta = []
1578
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1756
        child_pb = ui.ui_factory.nested_progress_bar()
1579
1757
        new_paths = self._inventory_altered()
1580
1758
        total_entries = len(new_paths) + len(self._removed_id)
1581
1759
        try:
1582
1760
            for num, trans_id in enumerate(self._removed_id):
1583
1761
                if (num % 10) == 0:
1584
 
                    child_pb.update('removing file', num, total_entries)
 
1762
                    child_pb.update(gettext('removing file'), num, total_entries)
1585
1763
                if trans_id == self._new_root:
1586
1764
                    file_id = self._tree.get_root_id()
1587
1765
                else:
1599
1777
            final_kinds = {}
1600
1778
            for num, (path, trans_id) in enumerate(new_paths):
1601
1779
                if (num % 10) == 0:
1602
 
                    child_pb.update('adding file',
 
1780
                    child_pb.update(gettext('adding file'),
1603
1781
                                    num + len(self._removed_id), total_entries)
1604
1782
                file_id = new_path_file_ids[trans_id]
1605
1783
                if file_id is None:
1606
1784
                    continue
1607
1785
                needs_entry = False
1608
 
                try:
1609
 
                    kind = self.final_kind(trans_id)
1610
 
                except NoSuchFile:
 
1786
                kind = self.final_kind(trans_id)
 
1787
                if kind is None:
1611
1788
                    kind = self._tree.stored_kind(file_id)
1612
1789
                parent_trans_id = self.final_parent(trans_id)
1613
1790
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1644
1821
        """
1645
1822
        tree_paths = list(self._tree_path_ids.iteritems())
1646
1823
        tree_paths.sort(reverse=True)
1647
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1824
        child_pb = ui.ui_factory.nested_progress_bar()
1648
1825
        try:
1649
 
            for num, data in enumerate(tree_paths):
1650
 
                path, trans_id = data
1651
 
                child_pb.update('removing file', num, len(tree_paths))
 
1826
            for num, (path, trans_id) in enumerate(tree_paths):
 
1827
                # do not attempt to move root into a subdirectory of itself.
 
1828
                if path == '':
 
1829
                    continue
 
1830
                child_pb.update(gettext('removing file'), num, len(tree_paths))
1652
1831
                full_path = self._tree.abspath(path)
1653
1832
                if trans_id in self._removed_contents:
1654
1833
                    delete_path = os.path.join(self._deletiondir, trans_id)
1679
1858
        modified_paths = []
1680
1859
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1681
1860
                                 new_paths)
1682
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1861
        child_pb = ui.ui_factory.nested_progress_bar()
1683
1862
        try:
1684
1863
            for num, (path, trans_id) in enumerate(new_paths):
1685
1864
                if (num % 10) == 0:
1686
 
                    child_pb.update('adding file', num, len(new_paths))
 
1865
                    child_pb.update(gettext('adding file'), num, len(new_paths))
1687
1866
                full_path = self._tree.abspath(path)
1688
1867
                if trans_id in self._needs_rename:
1689
1868
                    try:
1694
1873
                            raise
1695
1874
                    else:
1696
1875
                        self.rename_count += 1
 
1876
                    # TODO: if trans_id in self._observed_sha1s, we should
 
1877
                    #       re-stat the final target, since ctime will be
 
1878
                    #       updated by the change.
1697
1879
                if (trans_id in self._new_contents or
1698
1880
                    self.path_changed(trans_id)):
1699
1881
                    if trans_id in self._new_contents:
1700
1882
                        modified_paths.append(full_path)
1701
1883
                if trans_id in self._new_executability:
1702
1884
                    self._set_executability(path, trans_id)
 
1885
                if trans_id in self._observed_sha1s:
 
1886
                    o_sha1, o_st_val = self._observed_sha1s[trans_id]
 
1887
                    st = osutils.lstat(full_path)
 
1888
                    self._observed_sha1s[trans_id] = (o_sha1, st)
1703
1889
        finally:
1704
1890
            child_pb.finished()
 
1891
        for path, trans_id in new_paths:
 
1892
            # new_paths includes stuff like workingtree conflicts. Only the
 
1893
            # stuff in new_contents actually comes from limbo.
 
1894
            if trans_id in self._limbo_files:
 
1895
                del self._limbo_files[trans_id]
1705
1896
        self._new_contents.clear()
1706
1897
        return modified_paths
1707
1898
 
 
1899
    def _apply_observed_sha1s(self):
 
1900
        """After we have finished renaming everything, update observed sha1s
 
1901
 
 
1902
        This has to be done after self._tree.apply_inventory_delta, otherwise
 
1903
        it doesn't know anything about the files we are updating. Also, we want
 
1904
        to do this as late as possible, so that most entries end up cached.
 
1905
        """
 
1906
        # TODO: this doesn't update the stat information for directories. So
 
1907
        #       the first 'bzr status' will still need to rewrite
 
1908
        #       .bzr/checkout/dirstate. However, we at least don't need to
 
1909
        #       re-read all of the files.
 
1910
        # TODO: If the operation took a while, we could do a time.sleep(3) here
 
1911
        #       to allow the clock to tick over and ensure we won't have any
 
1912
        #       problems. (we could observe start time, and finish time, and if
 
1913
        #       it is less than eg 10% overhead, add a sleep call.)
 
1914
        paths = FinalPaths(self)
 
1915
        for trans_id, observed in self._observed_sha1s.iteritems():
 
1916
            path = paths.get_path(trans_id)
 
1917
            # We could get the file_id, but dirstate prefers to use the path
 
1918
            # anyway, and it is 'cheaper' to determine.
 
1919
            # file_id = self._new_id[trans_id]
 
1920
            self._tree._observed_sha1(None, path, observed)
 
1921
 
1708
1922
 
1709
1923
class TransformPreview(DiskTreeTransform):
1710
1924
    """A TreeTransform for generating preview trees.
1725
1939
    def tree_kind(self, trans_id):
1726
1940
        path = self._tree_id_paths.get(trans_id)
1727
1941
        if path is None:
1728
 
            raise NoSuchFile(None)
1729
 
        file_id = self._tree.path2id(path)
1730
 
        return self._tree.kind(file_id)
 
1942
            return None
 
1943
        kind = self._tree.path_content_summary(path)[0]
 
1944
        if kind == 'missing':
 
1945
            kind = None
 
1946
        return kind
1731
1947
 
1732
1948
    def _set_mode(self, trans_id, mode_id, typefunc):
1733
1949
        """Set the mode of new file contents.
1753
1969
            childpath = joinpath(path, child)
1754
1970
            yield self.trans_id_tree_path(childpath)
1755
1971
 
1756
 
 
1757
 
class _PreviewTree(tree.Tree):
 
1972
    def new_orphan(self, trans_id, parent_id):
 
1973
        raise NotImplementedError(self.new_orphan)
 
1974
 
 
1975
 
 
1976
class _PreviewTree(tree.InventoryTree):
1758
1977
    """Partial implementation of Tree to support show_diff_trees"""
1759
1978
 
1760
1979
    def __init__(self, transform):
1789
2008
                yield self._get_repository().revision_tree(revision_id)
1790
2009
 
1791
2010
    def _get_file_revision(self, file_id, vf, tree_revision):
1792
 
        parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
 
2011
        parent_keys = [(file_id, t.get_file_revision(file_id)) for t in
1793
2012
                       self._iter_parent_trees()]
1794
2013
        vf.add_lines((file_id, tree_revision), parent_keys,
1795
2014
                     self.get_file_lines(file_id))
1799
2018
            vf.fallback_versionedfiles.append(base_vf)
1800
2019
        return tree_revision
1801
2020
 
1802
 
    def _stat_limbo_file(self, file_id):
1803
 
        trans_id = self._transform.trans_id_file_id(file_id)
 
2021
    def _stat_limbo_file(self, file_id=None, trans_id=None):
 
2022
        if trans_id is None:
 
2023
            trans_id = self._transform.trans_id_file_id(file_id)
1804
2024
        name = self._transform._limbo_name(trans_id)
1805
2025
        return os.lstat(name)
1806
2026
 
1831
2051
        pass
1832
2052
 
1833
2053
    @property
 
2054
    @deprecated_method(deprecated_in((2, 5, 0)))
1834
2055
    def inventory(self):
1835
2056
        """This Tree does not use inventory as its backing data."""
1836
2057
        raise NotImplementedError(_PreviewTree.inventory)
1837
2058
 
 
2059
    @property
 
2060
    def root_inventory(self):
 
2061
        """This Tree does not use inventory as its backing data."""
 
2062
        raise NotImplementedError(_PreviewTree.root_inventory)
 
2063
 
1838
2064
    def get_root_id(self):
1839
2065
        return self._transform.final_file_id(self._transform.root)
1840
2066
 
1886
2112
        return cur_parent
1887
2113
 
1888
2114
    def path2id(self, path):
 
2115
        if isinstance(path, list):
 
2116
            if path == []:
 
2117
                path = [""]
 
2118
            path = osutils.pathjoin(*path)
1889
2119
        return self._transform.final_file_id(self._path2trans_id(path))
1890
2120
 
1891
2121
    def id2path(self, file_id):
1929
2159
            if (specific_file_ids is not None
1930
2160
                and file_id not in specific_file_ids):
1931
2161
                continue
1932
 
            try:
1933
 
                kind = self._transform.final_kind(trans_id)
1934
 
            except NoSuchFile:
 
2162
            kind = self._transform.final_kind(trans_id)
 
2163
            if kind is None:
1935
2164
                kind = self._transform._tree.stored_kind(file_id)
1936
2165
            new_entry = inventory.make_entry(
1937
2166
                kind,
1953
2182
                ordered_ids.append((trans_id, parent_file_id))
1954
2183
        return ordered_ids
1955
2184
 
 
2185
    def iter_child_entries(self, file_id, path=None):
 
2186
        self.id2path(file_id)
 
2187
        trans_id = self._transform.trans_id_file_id(file_id)
 
2188
        todo = [(child_trans_id, trans_id) for child_trans_id in
 
2189
                self._all_children(trans_id)]
 
2190
        for entry, trans_id in self._make_inv_entries(todo):
 
2191
            yield entry
 
2192
 
1956
2193
    def iter_entries_by_dir(self, specific_file_ids=None, yield_parents=False):
1957
2194
        # This may not be a maximally efficient implementation, but it is
1958
2195
        # reasonably straightforward.  An implementation that grafts the
2022
2259
 
2023
2260
    def get_file_size(self, file_id):
2024
2261
        """See Tree.get_file_size"""
 
2262
        trans_id = self._transform.trans_id_file_id(file_id)
 
2263
        kind = self._transform.final_kind(trans_id)
 
2264
        if kind != 'file':
 
2265
            return None
 
2266
        if trans_id in self._transform._new_contents:
 
2267
            return self._stat_limbo_file(trans_id=trans_id).st_size
2025
2268
        if self.kind(file_id) == 'file':
2026
2269
            return self._transform._tree.get_file_size(file_id)
2027
2270
        else:
2028
2271
            return None
2029
2272
 
 
2273
    def get_file_verifier(self, file_id, path=None, stat_value=None):
 
2274
        trans_id = self._transform.trans_id_file_id(file_id)
 
2275
        kind = self._transform._new_contents.get(trans_id)
 
2276
        if kind is None:
 
2277
            return self._transform._tree.get_file_verifier(file_id)
 
2278
        if kind == 'file':
 
2279
            fileobj = self.get_file(file_id)
 
2280
            try:
 
2281
                return ("SHA1", sha_file(fileobj))
 
2282
            finally:
 
2283
                fileobj.close()
 
2284
 
2030
2285
    def get_file_sha1(self, file_id, path=None, stat_value=None):
2031
2286
        trans_id = self._transform.trans_id_file_id(file_id)
2032
2287
        kind = self._transform._new_contents.get(trans_id)
2055
2310
            except errors.NoSuchId:
2056
2311
                return False
2057
2312
 
 
2313
    def has_filename(self, path):
 
2314
        trans_id = self._path2trans_id(path)
 
2315
        if trans_id in self._transform._new_contents:
 
2316
            return True
 
2317
        elif trans_id in self._transform._removed_contents:
 
2318
            return False
 
2319
        else:
 
2320
            return self._transform._tree.has_filename(path)
 
2321
 
2058
2322
    def path_content_summary(self, path):
2059
2323
        trans_id = self._path2trans_id(path)
2060
2324
        tt = self._transform
2073
2337
            if kind == 'file':
2074
2338
                statval = os.lstat(limbo_name)
2075
2339
                size = statval.st_size
2076
 
                if not supports_executable():
 
2340
                if not tt._limbo_supports_executable():
2077
2341
                    executable = False
2078
2342
                else:
2079
2343
                    executable = statval.st_mode & S_IEXEC
2148
2412
                                   self.get_file(file_id).readlines(),
2149
2413
                                   default_revision)
2150
2414
 
2151
 
    def get_symlink_target(self, file_id):
 
2415
    def get_symlink_target(self, file_id, path=None):
2152
2416
        """See Tree.get_symlink_target"""
2153
2417
        if not self._content_change(file_id):
2154
2418
            return self._transform._tree.get_symlink_target(file_id)
2169
2433
                path_from_root = self._final_paths.get_path(child_id)
2170
2434
                basename = self._transform.final_name(child_id)
2171
2435
                file_id = self._transform.final_file_id(child_id)
2172
 
                try:
2173
 
                    kind = self._transform.final_kind(child_id)
 
2436
                kind  = self._transform.final_kind(child_id)
 
2437
                if kind is not None:
2174
2438
                    versioned_kind = kind
2175
 
                except NoSuchFile:
 
2439
                else:
2176
2440
                    kind = 'unknown'
2177
2441
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2178
2442
                if versioned_kind == 'directory':
2292
2556
        if num > 0:  # more than just a root
2293
2557
            raise errors.WorkingTreeAlreadyPopulated(base=wt.basedir)
2294
2558
    file_trans_id = {}
2295
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2559
    top_pb = ui.ui_factory.nested_progress_bar()
2296
2560
    pp = ProgressPhase("Build phase", 2, top_pb)
2297
 
    if tree.inventory.root is not None:
 
2561
    if tree.get_root_id() is not None:
2298
2562
        # This is kind of a hack: we should be altering the root
2299
2563
        # as part of the regular tree shape diff logic.
2300
2564
        # The conditional test here is to avoid doing an
2311
2575
        pp.next_phase()
2312
2576
        file_trans_id[wt.get_root_id()] = \
2313
2577
            tt.trans_id_tree_file_id(wt.get_root_id())
2314
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2578
        pb = ui.ui_factory.nested_progress_bar()
2315
2579
        try:
2316
2580
            deferred_contents = []
2317
2581
            num = 0
2318
 
            total = len(tree.inventory)
 
2582
            total = len(tree.all_file_ids())
2319
2583
            if delta_from_tree:
2320
2584
                precomputed_delta = []
2321
2585
            else:
2330
2594
                for dir, files in wt.walkdirs():
2331
2595
                    existing_files.update(f[0] for f in files)
2332
2596
            for num, (tree_path, entry) in \
2333
 
                enumerate(tree.inventory.iter_entries_by_dir()):
2334
 
                pb.update("Building tree", num - len(deferred_contents), total)
 
2597
                enumerate(tree.iter_entries_by_dir()):
 
2598
                pb.update(gettext("Building tree"), num - len(deferred_contents), total)
2335
2599
                if entry.parent_id is None:
2336
2600
                    continue
2337
2601
                reparent = False
2343
2607
                    kind = file_kind(target_path)
2344
2608
                    if kind == "directory":
2345
2609
                        try:
2346
 
                            bzrdir.BzrDir.open(target_path)
 
2610
                            controldir.ControlDir.open(target_path)
2347
2611
                        except errors.NotBranchError:
2348
2612
                            pass
2349
2613
                        else:
2364
2628
                    executable = tree.is_executable(file_id, tree_path)
2365
2629
                    if executable:
2366
2630
                        tt.set_executability(executable, trans_id)
2367
 
                    trans_data = (trans_id, tree_path)
 
2631
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2368
2632
                    deferred_contents.append((file_id, trans_data))
2369
2633
                else:
2370
2634
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2386
2650
            precomputed_delta = None
2387
2651
        conflicts = cook_conflicts(raw_conflicts, tt)
2388
2652
        for conflict in conflicts:
2389
 
            warning(conflict)
 
2653
            trace.warning(unicode(conflict))
2390
2654
        try:
2391
2655
            wt.add_conflicts(conflicts)
2392
2656
        except errors.UnsupportedOperation:
2415
2679
        unchanged = dict(unchanged)
2416
2680
        new_desired_files = []
2417
2681
        count = 0
2418
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2682
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2419
2683
            accelerator_path = unchanged.get(file_id)
2420
2684
            if accelerator_path is None:
2421
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2685
                new_desired_files.append((file_id,
 
2686
                    (trans_id, tree_path, text_sha1)))
2422
2687
                continue
2423
 
            pb.update('Adding file contents', count + offset, total)
 
2688
            pb.update(gettext('Adding file contents'), count + offset, total)
2424
2689
            if hardlink:
2425
2690
                tt.create_hardlink(accelerator_tree.abspath(accelerator_path),
2426
2691
                                   trans_id)
2431
2696
                    contents = filtered_output_bytes(contents, filters,
2432
2697
                        ContentFilterContext(tree_path, tree))
2433
2698
                try:
2434
 
                    tt.create_file(contents, trans_id)
 
2699
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2435
2700
                finally:
2436
2701
                    try:
2437
2702
                        contents.close()
2440
2705
                        pass
2441
2706
            count += 1
2442
2707
        offset += count
2443
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2708
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2444
2709
            tree.iter_files_bytes(new_desired_files)):
2445
2710
        if wt.supports_content_filtering():
2446
2711
            filters = wt._content_filter_stack(tree_path)
2447
2712
            contents = filtered_output_bytes(contents, filters,
2448
2713
                ContentFilterContext(tree_path, tree))
2449
 
        tt.create_file(contents, trans_id)
2450
 
        pb.update('Adding file contents', count + offset, total)
 
2714
        tt.create_file(contents, trans_id, sha1=text_sha1)
 
2715
        pb.update(gettext('Adding file contents'), count + offset, total)
2451
2716
 
2452
2717
 
2453
2718
def _reparent_children(tt, old_parent, new_parent):
2454
2719
    for child in tt.iter_tree_children(old_parent):
2455
2720
        tt.adjust_path(tt.final_name(child), new_parent, child)
2456
2721
 
 
2722
 
2457
2723
def _reparent_transform_children(tt, old_parent, new_parent):
2458
2724
    by_parent = tt.by_parent()
2459
2725
    for child in by_parent[old_parent]:
2460
2726
        tt.adjust_path(tt.final_name(child), new_parent, child)
2461
2727
    return by_parent[old_parent]
2462
2728
 
 
2729
 
2463
2730
def _content_match(tree, entry, file_id, kind, target_path):
2464
2731
    if entry.kind != kind:
2465
2732
        return False
2565
2832
        tt.set_executability(entry.executable, trans_id)
2566
2833
 
2567
2834
 
2568
 
def get_backup_name(entry, by_parent, parent_trans_id, tt):
2569
 
    return _get_backup_name(entry.name, by_parent, parent_trans_id, tt)
2570
 
 
2571
 
 
2572
 
def _get_backup_name(name, by_parent, parent_trans_id, tt):
2573
 
    """Produce a backup-style name that appears to be available"""
2574
 
    def name_gen():
2575
 
        counter = 1
2576
 
        while True:
2577
 
            yield "%s.~%d~" % (name, counter)
2578
 
            counter += 1
2579
 
    for new_name in name_gen():
2580
 
        if not tt.has_named_child(by_parent, parent_trans_id, new_name):
2581
 
            return new_name
2582
 
 
2583
 
 
2584
 
def _entry_changes(file_id, entry, working_tree):
2585
 
    """Determine in which ways the inventory entry has changed.
2586
 
 
2587
 
    Returns booleans: has_contents, content_mod, meta_mod
2588
 
    has_contents means there are currently contents, but they differ
2589
 
    contents_mod means contents need to be modified
2590
 
    meta_mod means the metadata needs to be modified
2591
 
    """
2592
 
    cur_entry = working_tree.inventory[file_id]
2593
 
    try:
2594
 
        working_kind = working_tree.kind(file_id)
2595
 
        has_contents = True
2596
 
    except NoSuchFile:
2597
 
        has_contents = False
2598
 
        contents_mod = True
2599
 
        meta_mod = False
2600
 
    if has_contents is True:
2601
 
        if entry.kind != working_kind:
2602
 
            contents_mod, meta_mod = True, False
2603
 
        else:
2604
 
            cur_entry._read_tree_state(working_tree.id2path(file_id),
2605
 
                                       working_tree)
2606
 
            contents_mod, meta_mod = entry.detect_changes(cur_entry)
2607
 
            cur_entry._forget_tree_state()
2608
 
    return has_contents, contents_mod, meta_mod
2609
 
 
2610
 
 
2611
2835
def revert(working_tree, target_tree, filenames, backups=False,
2612
2836
           pb=None, change_reporter=None):
2613
2837
    """Revert a working tree's contents to those of a target tree."""
2623
2847
                unversioned_filter=working_tree.is_ignored)
2624
2848
            delta.report_changes(tt.iter_changes(), change_reporter)
2625
2849
        for conflict in conflicts:
2626
 
            warning(conflict)
 
2850
            trace.warning(unicode(conflict))
2627
2851
        pp.next_phase()
2628
2852
        tt.apply()
2629
2853
        working_tree.set_merge_modified(merge_modified)
2637
2861
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2638
2862
                              backups, pp, basis_tree=None,
2639
2863
                              merge_modified=None):
2640
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2864
    child_pb = ui.ui_factory.nested_progress_bar()
2641
2865
    try:
2642
2866
        if merge_modified is None:
2643
2867
            merge_modified = working_tree.merge_modified()
2646
2870
                                      merge_modified, basis_tree)
2647
2871
    finally:
2648
2872
        child_pb.finished()
2649
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2873
    child_pb = ui.ui_factory.nested_progress_bar()
2650
2874
    try:
2651
2875
        raw_conflicts = resolve_conflicts(tt, child_pb,
2652
2876
            lambda t, c: conflict_pass(t, c, target_tree))
2660
2884
                 backups, merge_modified, basis_tree=None):
2661
2885
    if basis_tree is not None:
2662
2886
        basis_tree.lock_read()
2663
 
    change_list = target_tree.iter_changes(working_tree,
 
2887
    # We ask the working_tree for its changes relative to the target, rather
 
2888
    # than the target changes relative to the working tree. Because WT4 has an
 
2889
    # optimizer to compare itself to a target, but no optimizer for the
 
2890
    # reverse.
 
2891
    change_list = working_tree.iter_changes(target_tree,
2664
2892
        specific_files=specific_files, pb=pb)
2665
2893
    if target_tree.get_root_id() is None:
2666
2894
        skip_root = True
2670
2898
        deferred_files = []
2671
2899
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2672
2900
                kind, executable) in enumerate(change_list):
2673
 
            if skip_root and file_id[0] is not None and parent[0] is None:
 
2901
            target_path, wt_path = path
 
2902
            target_versioned, wt_versioned = versioned
 
2903
            target_parent, wt_parent = parent
 
2904
            target_name, wt_name = name
 
2905
            target_kind, wt_kind = kind
 
2906
            target_executable, wt_executable = executable
 
2907
            if skip_root and wt_parent is None:
2674
2908
                continue
2675
2909
            trans_id = tt.trans_id_file_id(file_id)
2676
2910
            mode_id = None
2677
2911
            if changed_content:
2678
2912
                keep_content = False
2679
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2913
                if wt_kind == 'file' and (backups or target_kind is None):
2680
2914
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2681
2915
                    if merge_modified.get(file_id) != wt_sha1:
2682
2916
                        # acquire the basis tree lazily to prevent the
2685
2919
                        if basis_tree is None:
2686
2920
                            basis_tree = working_tree.basis_tree()
2687
2921
                            basis_tree.lock_read()
2688
 
                        if file_id in basis_tree:
 
2922
                        if basis_tree.has_id(file_id):
2689
2923
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2690
2924
                                keep_content = True
2691
 
                        elif kind[1] is None and not versioned[1]:
 
2925
                        elif target_kind is None and not target_versioned:
2692
2926
                            keep_content = True
2693
 
                if kind[0] is not None:
 
2927
                if wt_kind is not None:
2694
2928
                    if not keep_content:
2695
2929
                        tt.delete_contents(trans_id)
2696
 
                    elif kind[1] is not None:
2697
 
                        parent_trans_id = tt.trans_id_file_id(parent[0])
2698
 
                        by_parent = tt.by_parent()
2699
 
                        backup_name = _get_backup_name(name[0], by_parent,
2700
 
                                                       parent_trans_id, tt)
 
2930
                    elif target_kind is not None:
 
2931
                        parent_trans_id = tt.trans_id_file_id(wt_parent)
 
2932
                        backup_name = tt._available_backup_name(
 
2933
                            wt_name, parent_trans_id)
2701
2934
                        tt.adjust_path(backup_name, parent_trans_id, trans_id)
2702
 
                        new_trans_id = tt.create_path(name[0], parent_trans_id)
2703
 
                        if versioned == (True, True):
 
2935
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2936
                        if wt_versioned and target_versioned:
2704
2937
                            tt.unversion_file(trans_id)
2705
2938
                            tt.version_file(file_id, new_trans_id)
2706
2939
                        # New contents should have the same unix perms as old
2707
2940
                        # contents
2708
2941
                        mode_id = trans_id
2709
2942
                        trans_id = new_trans_id
2710
 
                if kind[1] in ('directory', 'tree-reference'):
 
2943
                if target_kind in ('directory', 'tree-reference'):
2711
2944
                    tt.create_directory(trans_id)
2712
 
                    if kind[1] == 'tree-reference':
 
2945
                    if target_kind == 'tree-reference':
2713
2946
                        revision = target_tree.get_reference_revision(file_id,
2714
 
                                                                      path[1])
 
2947
                                                                      target_path)
2715
2948
                        tt.set_tree_reference(revision, trans_id)
2716
 
                elif kind[1] == 'symlink':
 
2949
                elif target_kind == 'symlink':
2717
2950
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2718
2951
                                      trans_id)
2719
 
                elif kind[1] == 'file':
 
2952
                elif target_kind == 'file':
2720
2953
                    deferred_files.append((file_id, (trans_id, mode_id)))
2721
2954
                    if basis_tree is None:
2722
2955
                        basis_tree = working_tree.basis_tree()
2723
2956
                        basis_tree.lock_read()
2724
2957
                    new_sha1 = target_tree.get_file_sha1(file_id)
2725
 
                    if (file_id in basis_tree and new_sha1 ==
2726
 
                        basis_tree.get_file_sha1(file_id)):
 
2958
                    if (basis_tree.has_id(file_id) and
 
2959
                        new_sha1 == basis_tree.get_file_sha1(file_id)):
2727
2960
                        if file_id in merge_modified:
2728
2961
                            del merge_modified[file_id]
2729
2962
                    else:
2730
2963
                        merge_modified[file_id] = new_sha1
2731
2964
 
2732
2965
                    # preserve the execute bit when backing up
2733
 
                    if keep_content and executable[0] == executable[1]:
2734
 
                        tt.set_executability(executable[1], trans_id)
2735
 
                elif kind[1] is not None:
2736
 
                    raise AssertionError(kind[1])
2737
 
            if versioned == (False, True):
 
2966
                    if keep_content and wt_executable == target_executable:
 
2967
                        tt.set_executability(target_executable, trans_id)
 
2968
                elif target_kind is not None:
 
2969
                    raise AssertionError(target_kind)
 
2970
            if not wt_versioned and target_versioned:
2738
2971
                tt.version_file(file_id, trans_id)
2739
 
            if versioned == (True, False):
 
2972
            if wt_versioned and not target_versioned:
2740
2973
                tt.unversion_file(trans_id)
2741
 
            if (name[1] is not None and
2742
 
                (name[0] != name[1] or parent[0] != parent[1])):
2743
 
                if name[1] == '' and parent[1] is None:
 
2974
            if (target_name is not None and
 
2975
                (wt_name != target_name or wt_parent != target_parent)):
 
2976
                if target_name == '' and target_parent is None:
2744
2977
                    parent_trans = ROOT_PARENT
2745
2978
                else:
2746
 
                    parent_trans = tt.trans_id_file_id(parent[1])
2747
 
                if parent[0] is None and versioned[0]:
2748
 
                    tt.adjust_root_path(name[1], parent_trans)
 
2979
                    parent_trans = tt.trans_id_file_id(target_parent)
 
2980
                if wt_parent is None and wt_versioned:
 
2981
                    tt.adjust_root_path(target_name, parent_trans)
2749
2982
                else:
2750
 
                    tt.adjust_path(name[1], parent_trans, trans_id)
2751
 
            if executable[0] != executable[1] and kind[1] == "file":
2752
 
                tt.set_executability(executable[1], trans_id)
 
2983
                    tt.adjust_path(target_name, parent_trans, trans_id)
 
2984
            if wt_executable != target_executable and target_kind == "file":
 
2985
                tt.set_executability(target_executable, trans_id)
2753
2986
        if working_tree.supports_content_filtering():
2754
2987
            for index, ((trans_id, mode_id), bytes) in enumerate(
2755
2988
                target_tree.iter_files_bytes(deferred_files)):
2781
3014
    pb = ui.ui_factory.nested_progress_bar()
2782
3015
    try:
2783
3016
        for n in range(10):
2784
 
            pb.update('Resolution pass', n+1, 10)
 
3017
            pb.update(gettext('Resolution pass'), n+1, 10)
2785
3018
            conflicts = tt.find_conflicts()
2786
3019
            if len(conflicts) == 0:
2787
3020
                return new_conflicts
2811
3044
                existing_file, new_file = conflict[2], conflict[1]
2812
3045
            else:
2813
3046
                existing_file, new_file = conflict[1], conflict[2]
2814
 
            new_name = tt.final_name(existing_file)+'.moved'
 
3047
            new_name = tt.final_name(existing_file) + '.moved'
2815
3048
            tt.adjust_path(new_name, final_parent, existing_file)
2816
3049
            new_conflicts.add((c_type, 'Moved existing file to',
2817
3050
                               existing_file, new_file))
2826
3059
 
2827
3060
        elif c_type == 'missing parent':
2828
3061
            trans_id = conflict[1]
2829
 
            try:
2830
 
                tt.cancel_deletion(trans_id)
2831
 
                new_conflicts.add(('deleting parent', 'Not deleting',
2832
 
                                   trans_id))
2833
 
            except KeyError:
 
3062
            if trans_id in tt._removed_contents:
 
3063
                cancel_deletion = True
 
3064
                orphans = tt._get_potential_orphans(trans_id)
 
3065
                if orphans:
 
3066
                    cancel_deletion = False
 
3067
                    # All children are orphans
 
3068
                    for o in orphans:
 
3069
                        try:
 
3070
                            tt.new_orphan(o, trans_id)
 
3071
                        except OrphaningError:
 
3072
                            # Something bad happened so we cancel the directory
 
3073
                            # deletion which will leave it in place with a
 
3074
                            # conflict. The user can deal with it from there.
 
3075
                            # Note that this also catch the case where we don't
 
3076
                            # want to create orphans and leave the directory in
 
3077
                            # place.
 
3078
                            cancel_deletion = True
 
3079
                            break
 
3080
                if cancel_deletion:
 
3081
                    # Cancel the directory deletion
 
3082
                    tt.cancel_deletion(trans_id)
 
3083
                    new_conflicts.add(('deleting parent', 'Not deleting',
 
3084
                                       trans_id))
 
3085
            else:
2834
3086
                create = True
2835
3087
                try:
2836
3088
                    tt.final_name(trans_id)
2839
3091
                        file_id = tt.final_file_id(trans_id)
2840
3092
                        if file_id is None:
2841
3093
                            file_id = tt.inactive_file_id(trans_id)
2842
 
                        entry = path_tree.inventory[file_id]
 
3094
                        _, entry = path_tree.iter_entries_by_dir(
 
3095
                            [file_id]).next()
2843
3096
                        # special-case the other tree root (move its
2844
3097
                        # children to current root)
2845
3098
                        if entry.parent_id is None:
2860
3113
        elif c_type == 'unversioned parent':
2861
3114
            file_id = tt.inactive_file_id(conflict[1])
2862
3115
            # special-case the other tree root (move its children instead)
2863
 
            if path_tree and file_id in path_tree:
2864
 
                if path_tree.inventory[file_id].parent_id is None:
 
3116
            if path_tree and path_tree.has_id(file_id):
 
3117
                if path_tree.path2id('') == file_id:
 
3118
                    # This is the root entry, skip it
2865
3119
                    continue
2866
3120
            tt.version_file(file_id, conflict[1])
2867
3121
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2883
3137
 
2884
3138
def cook_conflicts(raw_conflicts, tt):
2885
3139
    """Generate a list of cooked conflicts, sorted by file path"""
2886
 
    from bzrlib.conflicts import Conflict
2887
3140
    conflict_iter = iter_cook_conflicts(raw_conflicts, tt)
2888
 
    return sorted(conflict_iter, key=Conflict.sort_key)
 
3141
    return sorted(conflict_iter, key=conflicts.Conflict.sort_key)
2889
3142
 
2890
3143
 
2891
3144
def iter_cook_conflicts(raw_conflicts, tt):
2892
 
    from bzrlib.conflicts import Conflict
2893
3145
    fp = FinalPaths(tt)
2894
3146
    for conflict in raw_conflicts:
2895
3147
        c_type = conflict[0]
2897
3149
        modified_path = fp.get_path(conflict[2])
2898
3150
        modified_id = tt.final_file_id(conflict[2])
2899
3151
        if len(conflict) == 3:
2900
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2901
 
                                     file_id=modified_id)
 
3152
            yield conflicts.Conflict.factory(
 
3153
                c_type, action=action, path=modified_path, file_id=modified_id)
2902
3154
 
2903
3155
        else:
2904
3156
            conflicting_path = fp.get_path(conflict[3])
2905
3157
            conflicting_id = tt.final_file_id(conflict[3])
2906
 
            yield Conflict.factory(c_type, action=action, path=modified_path,
2907
 
                                   file_id=modified_id,
2908
 
                                   conflict_path=conflicting_path,
2909
 
                                   conflict_file_id=conflicting_id)
 
3158
            yield conflicts.Conflict.factory(
 
3159
                c_type, action=action, path=modified_path,
 
3160
                file_id=modified_id,
 
3161
                conflict_path=conflicting_path,
 
3162
                conflict_file_id=conflicting_id)
2910
3163
 
2911
3164
 
2912
3165
class _FileMover(object):
2944
3197
            try:
2945
3198
                os.rename(to, from_)
2946
3199
            except OSError, e:
2947
 
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)                
 
3200
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)
2948
3201
        # after rollback, don't reuse _FileMover
2949
3202
        past_renames = None
2950
3203
        pending_deletions = None