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  • Committer: Vincent Ladeuil
  • Date: 2011-06-16 10:45:17 UTC
  • mto: This revision was merged to the branch mainline in revision 5981.
  • Revision ID: v.ladeuil+lp@free.fr-20110616104517-4qzhmzkxgozji88y
Add copyright notice, some docs and some cleanups.

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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
19
19
from stat import S_ISREG, S_IEXEC
20
20
import time
21
21
 
22
 
from bzrlib.lazy_import import lazy_import
23
 
lazy_import(globals(), """
 
22
from bzrlib import (
 
23
    errors,
 
24
    lazy_import,
 
25
    registry,
 
26
    trace,
 
27
    tree,
 
28
    )
 
29
lazy_import.lazy_import(globals(), """
24
30
from bzrlib import (
25
31
    annotate,
26
32
    bencode,
33
39
    osutils,
34
40
    revision as _mod_revision,
35
41
    ui,
 
42
    urlutils,
36
43
    )
37
44
""")
38
45
from bzrlib.errors import (DuplicateKey, MalformedTransform, NoSuchFile,
40
47
                           ExistingLimbo, ImmortalLimbo, NoFinalPath,
41
48
                           UnableCreateSymlink)
42
49
from bzrlib.filters import filtered_output_bytes, ContentFilterContext
43
 
from bzrlib.inventory import InventoryEntry
44
50
from bzrlib.osutils import (
45
51
    delete_any,
46
52
    file_kind,
47
53
    has_symlinks,
48
 
    lexists,
49
54
    pathjoin,
50
55
    sha_file,
51
56
    splitpath,
52
57
    supports_executable,
53
 
)
 
58
    )
54
59
from bzrlib.progress import ProgressPhase
55
60
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
 
61
    deprecated_function,
 
62
    deprecated_in,
 
63
    deprecated_method,
 
64
    )
63
65
 
64
66
 
65
67
ROOT_PARENT = "root-parent"
66
68
 
67
 
 
68
69
def unique_add(map, key, value):
69
70
    if key in map:
70
71
        raise DuplicateKey(key=key)
71
72
    map[key] = value
72
73
 
73
74
 
 
75
 
74
76
class _TransformResults(object):
75
77
    def __init__(self, modified_paths, rename_count):
76
78
        object.__init__(self)
100
102
        self._new_parent = {}
101
103
        # mapping of trans_id with new contents -> new file_kind
102
104
        self._new_contents = {}
 
105
        # mapping of trans_id => (sha1 of content, stat_value)
 
106
        self._observed_sha1s = {}
103
107
        # Set of trans_ids whose contents will be removed
104
108
        self._removed_contents = set()
105
109
        # Mapping of trans_id -> new execute-bit value
124
128
            self._new_root = self.trans_id_tree_file_id(root_id)
125
129
        else:
126
130
            self._new_root = None
127
 
        # Indictor of whether the transform has been applied
 
131
        # Indicator of whether the transform has been applied
128
132
        self._done = False
129
133
        # A progress bar
130
134
        self._pb = pb
315
319
 
316
320
    def delete_contents(self, trans_id):
317
321
        """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)
 
322
        kind = self.tree_kind(trans_id)
 
323
        if kind is not None:
 
324
            self._removed_contents.add(trans_id)
322
325
 
323
326
    def cancel_deletion(self, trans_id):
324
327
        """Cancel a scheduled deletion"""
389
392
        changed_kind = set(self._removed_contents)
390
393
        changed_kind.intersection_update(self._new_contents)
391
394
        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))
 
395
        changed_kind = (t for t in changed_kind
 
396
                        if self.tree_kind(t) != self.final_kind(t))
394
397
        new_ids.update(changed_kind)
395
398
        return sorted(FinalPaths(self).get_paths(new_ids))
396
399
 
397
400
    def final_kind(self, trans_id):
398
401
        """Determine the final file kind, after any changes applied.
399
402
 
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)
 
403
        :return: None if the file does not exist/has no contents.  (It is
 
404
            conceivable that a path would be created without the corresponding
 
405
            contents insertion command)
403
406
        """
404
407
        if trans_id in self._new_contents:
405
408
            return self._new_contents[trans_id]
406
409
        elif trans_id in self._removed_contents:
407
 
            raise NoSuchFile(None)
 
410
            return None
408
411
        else:
409
412
            return self.tree_kind(trans_id)
410
413
 
523
526
        for trans_id in self._removed_id:
524
527
            file_id = self.tree_file_id(trans_id)
525
528
            if file_id is not None:
 
529
                # XXX: This seems like something that should go via a different
 
530
                #      indirection.
526
531
                if self._tree.inventory[file_id].kind == 'directory':
527
532
                    parents.append(trans_id)
528
533
            elif self.tree_kind(trans_id) == 'directory':
532
537
            # ensure that all children are registered with the transaction
533
538
            list(self.iter_tree_children(parent_id))
534
539
 
 
540
    @deprecated_method(deprecated_in((2, 3, 0)))
535
541
    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:
 
542
        return self._has_named_child(
 
543
            name, parent_id, known_children=by_parent.get(parent_id, []))
 
544
 
 
545
    def _has_named_child(self, name, parent_id, known_children):
 
546
        """Does a parent already have a name child.
 
547
 
 
548
        :param name: The searched for name.
 
549
 
 
550
        :param parent_id: The parent for which the check is made.
 
551
 
 
552
        :param known_children: The already known children. This should have
 
553
            been recently obtained from `self.by_parent.get(parent_id)`
 
554
            (or will be if None is passed).
 
555
        """
 
556
        if known_children is None:
 
557
            known_children = self.by_parent().get(parent_id, [])
 
558
        for child in known_children:
541
559
            if self.final_name(child) == name:
542
560
                return True
543
 
        try:
544
 
            path = self._tree_id_paths[parent_id]
545
 
        except KeyError:
 
561
        parent_path = self._tree_id_paths.get(parent_id, None)
 
562
        if parent_path is None:
 
563
            # No parent... no children
546
564
            return False
547
 
        childpath = joinpath(path, name)
548
 
        child_id = self._tree_path_ids.get(childpath)
 
565
        child_path = joinpath(parent_path, name)
 
566
        child_id = self._tree_path_ids.get(child_path, None)
549
567
        if child_id is None:
550
 
            return lexists(self._tree.abspath(childpath))
 
568
            # Not known by the tree transform yet, check the filesystem
 
569
            return osutils.lexists(self._tree.abspath(child_path))
551
570
        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
 
571
            raise AssertionError('child_id is missing: %s, %s, %s'
 
572
                                 % (name, parent_id, child_id))
 
573
 
 
574
    def _available_backup_name(self, name, target_id):
 
575
        """Find an available backup name.
 
576
 
 
577
        :param name: The basename of the file.
 
578
 
 
579
        :param target_id: The directory trans_id where the backup should 
 
580
            be placed.
 
581
        """
 
582
        known_children = self.by_parent().get(target_id, [])
 
583
        return osutils.available_backup_name(
 
584
            name,
 
585
            lambda base: self._has_named_child(
 
586
                base, target_id, known_children))
559
587
 
560
588
    def _parent_loops(self):
561
589
        """No entry should be its own ancestor"""
596
624
        """
597
625
        conflicts = []
598
626
        for trans_id in self._new_id.iterkeys():
599
 
            try:
600
 
                kind = self.final_kind(trans_id)
601
 
            except NoSuchFile:
 
627
            kind = self.final_kind(trans_id)
 
628
            if kind is None:
602
629
                conflicts.append(('versioning no contents', trans_id))
603
630
                continue
604
 
            if not InventoryEntry.versionable_kind(kind):
 
631
            if not inventory.InventoryEntry.versionable_kind(kind):
605
632
                conflicts.append(('versioning bad kind', trans_id, kind))
606
633
        return conflicts
607
634
 
618
645
            if self.final_file_id(trans_id) is None:
619
646
                conflicts.append(('unversioned executability', trans_id))
620
647
            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:
 
648
                if self.final_kind(trans_id) != "file":
626
649
                    conflicts.append(('non-file executability', trans_id))
627
650
        return conflicts
628
651
 
630
653
        """Check for overwrites (not permitted on Win32)"""
631
654
        conflicts = []
632
655
        for trans_id in self._new_contents:
633
 
            try:
634
 
                self.tree_kind(trans_id)
635
 
            except NoSuchFile:
 
656
            if self.tree_kind(trans_id) is None:
636
657
                continue
637
658
            if trans_id not in self._removed_contents:
638
659
                conflicts.append(('overwrite', trans_id,
645
666
        if (self._new_name, self._new_parent) == ({}, {}):
646
667
            return conflicts
647
668
        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]
 
669
            name_ids = []
 
670
            for child_tid in children:
 
671
                name = self.final_name(child_tid)
 
672
                if name is not None:
 
673
                    # Keep children only if they still exist in the end
 
674
                    if not self._case_sensitive_target:
 
675
                        name = name.lower()
 
676
                    name_ids.append((name, child_tid))
651
677
            name_ids.sort()
652
678
            last_name = None
653
679
            last_trans_id = None
654
680
            for name, trans_id in name_ids:
655
 
                try:
656
 
                    kind = self.final_kind(trans_id)
657
 
                except NoSuchFile:
658
 
                    kind = None
 
681
                kind = self.final_kind(trans_id)
659
682
                file_id = self.final_file_id(trans_id)
660
683
                if kind is None and file_id is None:
661
684
                    continue
680
703
        return conflicts
681
704
 
682
705
    def _parent_type_conflicts(self, by_parent):
683
 
        """parents must have directory 'contents'."""
 
706
        """Children must have a directory parent"""
684
707
        conflicts = []
685
708
        for parent_id, children in by_parent.iteritems():
686
709
            if parent_id is ROOT_PARENT:
687
710
                continue
688
 
            if not self._any_contents(children):
 
711
            no_children = True
 
712
            for child_id in children:
 
713
                if self.final_kind(child_id) is not None:
 
714
                    no_children = False
 
715
                    break
 
716
            if no_children:
689
717
                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
 
718
            # There is at least a child, so we need an existing directory to
 
719
            # contain it.
 
720
            kind = self.final_kind(parent_id)
699
721
            if kind is None:
 
722
                # The directory will be deleted
700
723
                conflicts.append(('missing parent', parent_id))
701
724
            elif kind != "directory":
 
725
                # Meh, we need a *directory* to put something in it
702
726
                conflicts.append(('non-directory parent', parent_id))
703
727
        return conflicts
704
728
 
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
729
    def _set_executability(self, path, trans_id):
716
730
        """Set the executability of versioned files """
717
731
        if supports_executable():
739
753
        return trans_id
740
754
 
741
755
    def new_file(self, name, parent_id, contents, file_id=None,
742
 
                 executable=None):
 
756
                 executable=None, sha1=None):
743
757
        """Convenience method to create files.
744
758
 
745
759
        name is the name of the file to create.
752
766
        trans_id = self._new_entry(name, parent_id, file_id)
753
767
        # TODO: rather than scheduling a set_executable call,
754
768
        # have create_file create the file with the right mode.
755
 
        self.create_file(contents, trans_id)
 
769
        self.create_file(contents, trans_id, sha1=sha1)
756
770
        if executable is not None:
757
771
            self.set_executability(executable, trans_id)
758
772
        return trans_id
781
795
        self.create_symlink(target, trans_id)
782
796
        return trans_id
783
797
 
 
798
    def new_orphan(self, trans_id, parent_id):
 
799
        """Schedule an item to be orphaned.
 
800
 
 
801
        When a directory is about to be removed, its children, if they are not
 
802
        versioned are moved out of the way: they don't have a parent anymore.
 
803
 
 
804
        :param trans_id: The trans_id of the existing item.
 
805
        :param parent_id: The parent trans_id of the item.
 
806
        """
 
807
        raise NotImplementedError(self.new_orphan)
 
808
 
 
809
    def _get_potential_orphans(self, dir_id):
 
810
        """Find the potential orphans in a directory.
 
811
 
 
812
        A directory can't be safely deleted if there are versioned files in it.
 
813
        If all the contained files are unversioned then they can be orphaned.
 
814
 
 
815
        The 'None' return value means that the directory contains at least one
 
816
        versioned file and should not be deleted.
 
817
 
 
818
        :param dir_id: The directory trans id.
 
819
 
 
820
        :return: A list of the orphan trans ids or None if at least one
 
821
             versioned file is present.
 
822
        """
 
823
        orphans = []
 
824
        # Find the potential orphans, stop if one item should be kept
 
825
        for child_tid in self.by_parent()[dir_id]:
 
826
            if child_tid in self._removed_contents:
 
827
                # The child is removed as part of the transform. Since it was
 
828
                # versioned before, it's not an orphan
 
829
                continue
 
830
            elif self.final_file_id(child_tid) is None:
 
831
                # The child is not versioned
 
832
                orphans.append(child_tid)
 
833
            else:
 
834
                # We have a versioned file here, searching for orphans is
 
835
                # meaningless.
 
836
                orphans = None
 
837
                break
 
838
        return orphans
 
839
 
784
840
    def _affected_ids(self):
785
841
        """Return the set of transform ids affected by the transform"""
786
842
        trans_ids = set(self._removed_id)
845
901
        Return a (name, parent, kind, executable) tuple
846
902
        """
847
903
        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
 
904
        to_kind = self.final_kind(to_trans_id)
852
905
        to_parent = self.final_file_id(self.final_parent(to_trans_id))
853
906
        if to_trans_id in self._new_executability:
854
907
            to_executable = self._new_executability[to_trans_id]
1101
1154
        self._deletiondir = None
1102
1155
        # A mapping of transform ids to their limbo filename
1103
1156
        self._limbo_files = {}
 
1157
        self._possibly_stale_limbo_files = set()
1104
1158
        # A mapping of transform ids to a set of the transform ids of children
1105
1159
        # that their limbo directory has
1106
1160
        self._limbo_children = {}
1119
1173
        if self._tree is None:
1120
1174
            return
1121
1175
        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)
 
1176
            limbo_paths = self._limbo_files.values() + list(
 
1177
                self._possibly_stale_limbo_files)
 
1178
            limbo_paths = sorted(limbo_paths, reverse=True)
 
1179
            for path in limbo_paths:
 
1180
                try:
 
1181
                    delete_any(path)
 
1182
                except OSError, e:
 
1183
                    if e.errno != errno.ENOENT:
 
1184
                        raise
 
1185
                    # XXX: warn? perhaps we just got interrupted at an
 
1186
                    # inconvenient moment, but perhaps files are disappearing
 
1187
                    # from under us?
1127
1188
            try:
1128
1189
                delete_any(self._limbodir)
1129
1190
            except OSError:
1178
1239
        entries from _limbo_files, because they are now stale.
1179
1240
        """
1180
1241
        for trans_id in trans_ids:
1181
 
            old_path = self._limbo_files.pop(trans_id)
 
1242
            old_path = self._limbo_files[trans_id]
 
1243
            self._possibly_stale_limbo_files.add(old_path)
 
1244
            del self._limbo_files[trans_id]
1182
1245
            if trans_id not in self._new_contents:
1183
1246
                continue
1184
1247
            new_path = self._limbo_name(trans_id)
1185
 
            osutils.rename(old_path, new_path)
 
1248
            os.rename(old_path, new_path)
 
1249
            self._possibly_stale_limbo_files.remove(old_path)
1186
1250
            for descendant in self._limbo_descendants(trans_id):
1187
1251
                desc_path = self._limbo_files[descendant]
1188
1252
                desc_path = new_path + desc_path[len(old_path):]
1195
1259
            descendants.update(self._limbo_descendants(descendant))
1196
1260
        return descendants
1197
1261
 
1198
 
    def create_file(self, contents, trans_id, mode_id=None):
 
1262
    def create_file(self, contents, trans_id, mode_id=None, sha1=None):
1199
1263
        """Schedule creation of a new file.
1200
1264
 
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.
 
1265
        :seealso: new_file.
 
1266
 
 
1267
        :param contents: an iterator of strings, all of which will be written
 
1268
            to the target destination.
 
1269
        :param trans_id: TreeTransform handle
 
1270
        :param mode_id: If not None, force the mode of the target file to match
 
1271
            the mode of the object referenced by mode_id.
 
1272
            Otherwise, we will try to preserve mode bits of an existing file.
 
1273
        :param sha1: If the sha1 of this content is already known, pass it in.
 
1274
            We can use it to prevent future sha1 computations.
1208
1275
        """
1209
1276
        name = self._limbo_name(trans_id)
1210
1277
        f = open(name, 'wb')
1211
1278
        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
 
 
 
1279
            unique_add(self._new_contents, trans_id, 'file')
1221
1280
            f.writelines(contents)
1222
1281
        finally:
1223
1282
            f.close()
1224
1283
        self._set_mtime(name)
1225
1284
        self._set_mode(trans_id, mode_id, S_ISREG)
 
1285
        # It is unfortunate we have to use lstat instead of fstat, but we just
 
1286
        # used utime and chmod on the file, so we need the accurate final
 
1287
        # details.
 
1288
        if sha1 is not None:
 
1289
            self._observed_sha1s[trans_id] = (sha1, osutils.lstat(name))
1226
1290
 
1227
1291
    def _read_file_chunks(self, trans_id):
1228
1292
        cur_file = open(self._limbo_name(trans_id), 'rb')
1287
1351
    def cancel_creation(self, trans_id):
1288
1352
        """Cancel the creation of new file contents."""
1289
1353
        del self._new_contents[trans_id]
 
1354
        if trans_id in self._observed_sha1s:
 
1355
            del self._observed_sha1s[trans_id]
1290
1356
        children = self._limbo_children.get(trans_id)
1291
1357
        # if this is a limbo directory with children, move them before removing
1292
1358
        # the directory
1296
1362
            del self._limbo_children_names[trans_id]
1297
1363
        delete_any(self._limbo_name(trans_id))
1298
1364
 
 
1365
    def new_orphan(self, trans_id, parent_id):
 
1366
        # FIXME: There is no tree config, so we use the branch one (it's weird
 
1367
        # to define it this way as orphaning can only occur in a working tree,
 
1368
        # but that's all we have (for now). It will find the option in
 
1369
        # locations.conf or bazaar.conf though) -- vila 20100916
 
1370
        conf = self._tree.branch.get_config()
 
1371
        conf_var_name = 'bzr.transform.orphan_policy'
 
1372
        orphan_policy = conf.get_user_option(conf_var_name)
 
1373
        default_policy = orphaning_registry.default_key
 
1374
        if orphan_policy is None:
 
1375
            orphan_policy = default_policy
 
1376
        if orphan_policy not in orphaning_registry:
 
1377
            trace.warning('%s (from %s) is not a known policy, defaulting '
 
1378
                'to %s' % (orphan_policy, conf_var_name, default_policy))
 
1379
            orphan_policy = default_policy
 
1380
        handle_orphan = orphaning_registry.get(orphan_policy)
 
1381
        handle_orphan(self, trans_id, parent_id)
 
1382
 
 
1383
 
 
1384
class OrphaningError(errors.BzrError):
 
1385
 
 
1386
    # Only bugs could lead to such exception being seen by the user
 
1387
    internal_error = True
 
1388
    _fmt = "Error while orphaning %s in %s directory"
 
1389
 
 
1390
    def __init__(self, orphan, parent):
 
1391
        errors.BzrError.__init__(self)
 
1392
        self.orphan = orphan
 
1393
        self.parent = parent
 
1394
 
 
1395
 
 
1396
class OrphaningForbidden(OrphaningError):
 
1397
 
 
1398
    _fmt = "Policy: %s doesn't allow creating orphans."
 
1399
 
 
1400
    def __init__(self, policy):
 
1401
        errors.BzrError.__init__(self)
 
1402
        self.policy = policy
 
1403
 
 
1404
 
 
1405
def move_orphan(tt, orphan_id, parent_id):
 
1406
    """See TreeTransformBase.new_orphan.
 
1407
 
 
1408
    This creates a new orphan in the `bzr-orphans` dir at the root of the
 
1409
    `TreeTransform`.
 
1410
 
 
1411
    :param tt: The TreeTransform orphaning `trans_id`.
 
1412
 
 
1413
    :param orphan_id: The trans id that should be orphaned.
 
1414
 
 
1415
    :param parent_id: The orphan parent trans id.
 
1416
    """
 
1417
    # Add the orphan dir if it doesn't exist
 
1418
    orphan_dir_basename = 'bzr-orphans'
 
1419
    od_id = tt.trans_id_tree_path(orphan_dir_basename)
 
1420
    if tt.final_kind(od_id) is None:
 
1421
        tt.create_directory(od_id)
 
1422
    parent_path = tt._tree_id_paths[parent_id]
 
1423
    # Find a name that doesn't exist yet in the orphan dir
 
1424
    actual_name = tt.final_name(orphan_id)
 
1425
    new_name = tt._available_backup_name(actual_name, od_id)
 
1426
    tt.adjust_path(new_name, od_id, orphan_id)
 
1427
    trace.warning('%s has been orphaned in %s'
 
1428
                  % (joinpath(parent_path, actual_name), orphan_dir_basename))
 
1429
 
 
1430
 
 
1431
def refuse_orphan(tt, orphan_id, parent_id):
 
1432
    """See TreeTransformBase.new_orphan.
 
1433
 
 
1434
    This refuses to create orphan, letting the caller handle the conflict.
 
1435
    """
 
1436
    raise OrphaningForbidden('never')
 
1437
 
 
1438
 
 
1439
orphaning_registry = registry.Registry()
 
1440
orphaning_registry.register(
 
1441
    'conflict', refuse_orphan,
 
1442
    'Leave orphans in place and create a conflict on the directory.')
 
1443
orphaning_registry.register(
 
1444
    'move', move_orphan,
 
1445
    'Move orphans into the bzr-orphans directory.')
 
1446
orphaning_registry._set_default_key('conflict')
 
1447
 
1299
1448
 
1300
1449
class TreeTransform(DiskTreeTransform):
1301
1450
    """Represent a tree transformation.
1419
1568
    def tree_kind(self, trans_id):
1420
1569
        """Determine the file kind in the working tree.
1421
1570
 
1422
 
        Raises NoSuchFile if the file does not exist
 
1571
        :returns: The file kind or None if the file does not exist
1423
1572
        """
1424
1573
        path = self._tree_id_paths.get(trans_id)
1425
1574
        if path is None:
1426
 
            raise NoSuchFile(None)
 
1575
            return None
1427
1576
        try:
1428
1577
            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)
 
1578
        except errors.NoSuchFile:
 
1579
            return None
1434
1580
 
1435
1581
    def _set_mode(self, trans_id, mode_id, typefunc):
1436
1582
        """Set the mode of new file contents.
1542
1688
        """
1543
1689
        if not no_conflicts:
1544
1690
            self._check_malformed()
1545
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1691
        child_pb = ui.ui_factory.nested_progress_bar()
1546
1692
        try:
1547
1693
            if precomputed_delta is None:
1548
1694
                child_pb.update('Apply phase', 0, 2)
1568
1714
        finally:
1569
1715
            child_pb.finished()
1570
1716
        self._tree.apply_inventory_delta(inventory_delta)
 
1717
        self._apply_observed_sha1s()
1571
1718
        self._done = True
1572
1719
        self.finalize()
1573
1720
        return _TransformResults(modified_paths, self.rename_count)
1575
1722
    def _generate_inventory_delta(self):
1576
1723
        """Generate an inventory delta for the current transform."""
1577
1724
        inventory_delta = []
1578
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1725
        child_pb = ui.ui_factory.nested_progress_bar()
1579
1726
        new_paths = self._inventory_altered()
1580
1727
        total_entries = len(new_paths) + len(self._removed_id)
1581
1728
        try:
1605
1752
                if file_id is None:
1606
1753
                    continue
1607
1754
                needs_entry = False
1608
 
                try:
1609
 
                    kind = self.final_kind(trans_id)
1610
 
                except NoSuchFile:
 
1755
                kind = self.final_kind(trans_id)
 
1756
                if kind is None:
1611
1757
                    kind = self._tree.stored_kind(file_id)
1612
1758
                parent_trans_id = self.final_parent(trans_id)
1613
1759
                parent_file_id = new_path_file_ids.get(parent_trans_id)
1644
1790
        """
1645
1791
        tree_paths = list(self._tree_path_ids.iteritems())
1646
1792
        tree_paths.sort(reverse=True)
1647
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1793
        child_pb = ui.ui_factory.nested_progress_bar()
1648
1794
        try:
1649
1795
            for num, data in enumerate(tree_paths):
1650
1796
                path, trans_id = data
1657
1803
                      or trans_id in self._new_parent):
1658
1804
                    try:
1659
1805
                        mover.rename(full_path, self._limbo_name(trans_id))
1660
 
                    except OSError, e:
 
1806
                    except errors.TransformRenameFailed, e:
1661
1807
                        if e.errno != errno.ENOENT:
1662
1808
                            raise
1663
1809
                    else:
1679
1825
        modified_paths = []
1680
1826
        new_path_file_ids = dict((t, self.final_file_id(t)) for p, t in
1681
1827
                                 new_paths)
1682
 
        child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
1828
        child_pb = ui.ui_factory.nested_progress_bar()
1683
1829
        try:
1684
1830
            for num, (path, trans_id) in enumerate(new_paths):
1685
1831
                if (num % 10) == 0:
1688
1834
                if trans_id in self._needs_rename:
1689
1835
                    try:
1690
1836
                        mover.rename(self._limbo_name(trans_id), full_path)
1691
 
                    except OSError, e:
 
1837
                    except errors.TransformRenameFailed, e:
1692
1838
                        # We may be renaming a dangling inventory id
1693
1839
                        if e.errno != errno.ENOENT:
1694
1840
                            raise
1695
1841
                    else:
1696
1842
                        self.rename_count += 1
 
1843
                    # TODO: if trans_id in self._observed_sha1s, we should
 
1844
                    #       re-stat the final target, since ctime will be
 
1845
                    #       updated by the change.
1697
1846
                if (trans_id in self._new_contents or
1698
1847
                    self.path_changed(trans_id)):
1699
1848
                    if trans_id in self._new_contents:
1700
1849
                        modified_paths.append(full_path)
1701
1850
                if trans_id in self._new_executability:
1702
1851
                    self._set_executability(path, trans_id)
 
1852
                if trans_id in self._observed_sha1s:
 
1853
                    o_sha1, o_st_val = self._observed_sha1s[trans_id]
 
1854
                    st = osutils.lstat(full_path)
 
1855
                    self._observed_sha1s[trans_id] = (o_sha1, st)
1703
1856
        finally:
1704
1857
            child_pb.finished()
 
1858
        for path, trans_id in new_paths:
 
1859
            # new_paths includes stuff like workingtree conflicts. Only the
 
1860
            # stuff in new_contents actually comes from limbo.
 
1861
            if trans_id in self._limbo_files:
 
1862
                del self._limbo_files[trans_id]
1705
1863
        self._new_contents.clear()
1706
1864
        return modified_paths
1707
1865
 
 
1866
    def _apply_observed_sha1s(self):
 
1867
        """After we have finished renaming everything, update observed sha1s
 
1868
 
 
1869
        This has to be done after self._tree.apply_inventory_delta, otherwise
 
1870
        it doesn't know anything about the files we are updating. Also, we want
 
1871
        to do this as late as possible, so that most entries end up cached.
 
1872
        """
 
1873
        # TODO: this doesn't update the stat information for directories. So
 
1874
        #       the first 'bzr status' will still need to rewrite
 
1875
        #       .bzr/checkout/dirstate. However, we at least don't need to
 
1876
        #       re-read all of the files.
 
1877
        # TODO: If the operation took a while, we could do a time.sleep(3) here
 
1878
        #       to allow the clock to tick over and ensure we won't have any
 
1879
        #       problems. (we could observe start time, and finish time, and if
 
1880
        #       it is less than eg 10% overhead, add a sleep call.)
 
1881
        paths = FinalPaths(self)
 
1882
        for trans_id, observed in self._observed_sha1s.iteritems():
 
1883
            path = paths.get_path(trans_id)
 
1884
            # We could get the file_id, but dirstate prefers to use the path
 
1885
            # anyway, and it is 'cheaper' to determine.
 
1886
            # file_id = self._new_id[trans_id]
 
1887
            self._tree._observed_sha1(None, path, observed)
 
1888
 
1708
1889
 
1709
1890
class TransformPreview(DiskTreeTransform):
1710
1891
    """A TreeTransform for generating preview trees.
1725
1906
    def tree_kind(self, trans_id):
1726
1907
        path = self._tree_id_paths.get(trans_id)
1727
1908
        if path is None:
1728
 
            raise NoSuchFile(None)
1729
 
        file_id = self._tree.path2id(path)
1730
 
        return self._tree.kind(file_id)
 
1909
            return None
 
1910
        kind = self._tree.path_content_summary(path)[0]
 
1911
        if kind == 'missing':
 
1912
            kind = None
 
1913
        return kind
1731
1914
 
1732
1915
    def _set_mode(self, trans_id, mode_id, typefunc):
1733
1916
        """Set the mode of new file contents.
1753
1936
            childpath = joinpath(path, child)
1754
1937
            yield self.trans_id_tree_path(childpath)
1755
1938
 
1756
 
 
1757
 
class _PreviewTree(tree.Tree):
 
1939
    def new_orphan(self, trans_id, parent_id):
 
1940
        raise NotImplementedError(self.new_orphan)
 
1941
 
 
1942
 
 
1943
class _PreviewTree(tree.InventoryTree):
1758
1944
    """Partial implementation of Tree to support show_diff_trees"""
1759
1945
 
1760
1946
    def __init__(self, transform):
1789
1975
                yield self._get_repository().revision_tree(revision_id)
1790
1976
 
1791
1977
    def _get_file_revision(self, file_id, vf, tree_revision):
1792
 
        parent_keys = [(file_id, self._file_revision(t, file_id)) for t in
 
1978
        parent_keys = [(file_id, t.get_file_revision(file_id)) for t in
1793
1979
                       self._iter_parent_trees()]
1794
1980
        vf.add_lines((file_id, tree_revision), parent_keys,
1795
 
                     self.get_file(file_id).readlines())
 
1981
                     self.get_file_lines(file_id))
1796
1982
        repo = self._get_repository()
1797
1983
        base_vf = repo.texts
1798
1984
        if base_vf not in vf.fallback_versionedfiles:
1799
1985
            vf.fallback_versionedfiles.append(base_vf)
1800
1986
        return tree_revision
1801
1987
 
1802
 
    def _stat_limbo_file(self, file_id):
1803
 
        trans_id = self._transform.trans_id_file_id(file_id)
 
1988
    def _stat_limbo_file(self, file_id=None, trans_id=None):
 
1989
        if trans_id is None:
 
1990
            trans_id = self._transform.trans_id_file_id(file_id)
1804
1991
        name = self._transform._limbo_name(trans_id)
1805
1992
        return os.lstat(name)
1806
1993
 
1929
2116
            if (specific_file_ids is not None
1930
2117
                and file_id not in specific_file_ids):
1931
2118
                continue
1932
 
            try:
1933
 
                kind = self._transform.final_kind(trans_id)
1934
 
            except NoSuchFile:
 
2119
            kind = self._transform.final_kind(trans_id)
 
2120
            if kind is None:
1935
2121
                kind = self._transform._tree.stored_kind(file_id)
1936
2122
            new_entry = inventory.make_entry(
1937
2123
                kind,
2022
2208
 
2023
2209
    def get_file_size(self, file_id):
2024
2210
        """See Tree.get_file_size"""
 
2211
        trans_id = self._transform.trans_id_file_id(file_id)
 
2212
        kind = self._transform.final_kind(trans_id)
 
2213
        if kind != 'file':
 
2214
            return None
 
2215
        if trans_id in self._transform._new_contents:
 
2216
            return self._stat_limbo_file(trans_id=trans_id).st_size
2025
2217
        if self.kind(file_id) == 'file':
2026
2218
            return self._transform._tree.get_file_size(file_id)
2027
2219
        else:
2055
2247
            except errors.NoSuchId:
2056
2248
                return False
2057
2249
 
 
2250
    def has_filename(self, path):
 
2251
        trans_id = self._path2trans_id(path)
 
2252
        if trans_id in self._transform._new_contents:
 
2253
            return True
 
2254
        elif trans_id in self._transform._removed_contents:
 
2255
            return False
 
2256
        else:
 
2257
            return self._transform._tree.has_filename(path)
 
2258
 
2058
2259
    def path_content_summary(self, path):
2059
2260
        trans_id = self._path2trans_id(path)
2060
2261
        tt = self._transform
2148
2349
                                   self.get_file(file_id).readlines(),
2149
2350
                                   default_revision)
2150
2351
 
2151
 
    def get_symlink_target(self, file_id):
 
2352
    def get_symlink_target(self, file_id, path=None):
2152
2353
        """See Tree.get_symlink_target"""
2153
2354
        if not self._content_change(file_id):
2154
2355
            return self._transform._tree.get_symlink_target(file_id)
2169
2370
                path_from_root = self._final_paths.get_path(child_id)
2170
2371
                basename = self._transform.final_name(child_id)
2171
2372
                file_id = self._transform.final_file_id(child_id)
2172
 
                try:
2173
 
                    kind = self._transform.final_kind(child_id)
 
2373
                kind  = self._transform.final_kind(child_id)
 
2374
                if kind is not None:
2174
2375
                    versioned_kind = kind
2175
 
                except NoSuchFile:
 
2376
                else:
2176
2377
                    kind = 'unknown'
2177
2378
                    versioned_kind = self._transform._tree.stored_kind(file_id)
2178
2379
                if versioned_kind == 'directory':
2291
2492
    for num, _unused in enumerate(wt.all_file_ids()):
2292
2493
        if num > 0:  # more than just a root
2293
2494
            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
2495
    file_trans_id = {}
2298
 
    top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2496
    top_pb = ui.ui_factory.nested_progress_bar()
2299
2497
    pp = ProgressPhase("Build phase", 2, top_pb)
2300
2498
    if tree.inventory.root is not None:
2301
2499
        # This is kind of a hack: we should be altering the root
2314
2512
        pp.next_phase()
2315
2513
        file_trans_id[wt.get_root_id()] = \
2316
2514
            tt.trans_id_tree_file_id(wt.get_root_id())
2317
 
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2515
        pb = ui.ui_factory.nested_progress_bar()
2318
2516
        try:
2319
2517
            deferred_contents = []
2320
2518
            num = 0
2323
2521
                precomputed_delta = []
2324
2522
            else:
2325
2523
                precomputed_delta = None
 
2524
            # Check if tree inventory has content. If so, we populate
 
2525
            # existing_files with the directory content. If there are no
 
2526
            # entries we skip populating existing_files as its not used.
 
2527
            # This improves performance and unncessary work on large
 
2528
            # directory trees. (#501307)
 
2529
            if total > 0:
 
2530
                existing_files = set()
 
2531
                for dir, files in wt.walkdirs():
 
2532
                    existing_files.update(f[0] for f in files)
2326
2533
            for num, (tree_path, entry) in \
2327
2534
                enumerate(tree.inventory.iter_entries_by_dir()):
2328
2535
                pb.update("Building tree", num - len(deferred_contents), total)
2358
2565
                    executable = tree.is_executable(file_id, tree_path)
2359
2566
                    if executable:
2360
2567
                        tt.set_executability(executable, trans_id)
2361
 
                    trans_data = (trans_id, tree_path)
 
2568
                    trans_data = (trans_id, tree_path, entry.text_sha1)
2362
2569
                    deferred_contents.append((file_id, trans_data))
2363
2570
                else:
2364
2571
                    file_trans_id[file_id] = new_by_entry(tt, entry, parent_id,
2380
2587
            precomputed_delta = None
2381
2588
        conflicts = cook_conflicts(raw_conflicts, tt)
2382
2589
        for conflict in conflicts:
2383
 
            warning(conflict)
 
2590
            trace.warning(unicode(conflict))
2384
2591
        try:
2385
2592
            wt.add_conflicts(conflicts)
2386
2593
        except errors.UnsupportedOperation:
2409
2616
        unchanged = dict(unchanged)
2410
2617
        new_desired_files = []
2411
2618
        count = 0
2412
 
        for file_id, (trans_id, tree_path) in desired_files:
 
2619
        for file_id, (trans_id, tree_path, text_sha1) in desired_files:
2413
2620
            accelerator_path = unchanged.get(file_id)
2414
2621
            if accelerator_path is None:
2415
 
                new_desired_files.append((file_id, (trans_id, tree_path)))
 
2622
                new_desired_files.append((file_id,
 
2623
                    (trans_id, tree_path, text_sha1)))
2416
2624
                continue
2417
2625
            pb.update('Adding file contents', count + offset, total)
2418
2626
            if hardlink:
2425
2633
                    contents = filtered_output_bytes(contents, filters,
2426
2634
                        ContentFilterContext(tree_path, tree))
2427
2635
                try:
2428
 
                    tt.create_file(contents, trans_id)
 
2636
                    tt.create_file(contents, trans_id, sha1=text_sha1)
2429
2637
                finally:
2430
2638
                    try:
2431
2639
                        contents.close()
2434
2642
                        pass
2435
2643
            count += 1
2436
2644
        offset += count
2437
 
    for count, ((trans_id, tree_path), contents) in enumerate(
 
2645
    for count, ((trans_id, tree_path, text_sha1), contents) in enumerate(
2438
2646
            tree.iter_files_bytes(new_desired_files)):
2439
2647
        if wt.supports_content_filtering():
2440
2648
            filters = wt._content_filter_stack(tree_path)
2441
2649
            contents = filtered_output_bytes(contents, filters,
2442
2650
                ContentFilterContext(tree_path, tree))
2443
 
        tt.create_file(contents, trans_id)
 
2651
        tt.create_file(contents, trans_id, sha1=text_sha1)
2444
2652
        pb.update('Adding file contents', count + offset, total)
2445
2653
 
2446
2654
 
2448
2656
    for child in tt.iter_tree_children(old_parent):
2449
2657
        tt.adjust_path(tt.final_name(child), new_parent, child)
2450
2658
 
 
2659
 
2451
2660
def _reparent_transform_children(tt, old_parent, new_parent):
2452
2661
    by_parent = tt.by_parent()
2453
2662
    for child in by_parent[old_parent]:
2454
2663
        tt.adjust_path(tt.final_name(child), new_parent, child)
2455
2664
    return by_parent[old_parent]
2456
2665
 
 
2666
 
2457
2667
def _content_match(tree, entry, file_id, kind, target_path):
2458
2668
    if entry.kind != kind:
2459
2669
        return False
2460
2670
    if entry.kind == "directory":
2461
2671
        return True
2462
2672
    if entry.kind == "file":
2463
 
        if tree.get_file(file_id).read() == file(target_path, 'rb').read():
2464
 
            return True
 
2673
        f = file(target_path, 'rb')
 
2674
        try:
 
2675
            if tree.get_file_text(file_id) == f.read():
 
2676
                return True
 
2677
        finally:
 
2678
            f.close()
2465
2679
    elif entry.kind == "symlink":
2466
2680
        if tree.get_symlink_target(file_id) == os.readlink(target_path):
2467
2681
            return True
2519
2733
        raise errors.BadFileKindError(name, kind)
2520
2734
 
2521
2735
 
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
2736
def create_from_tree(tt, trans_id, tree, file_id, bytes=None,
2539
2737
    filter_tree_path=None):
2540
2738
    """Create new file contents according to tree contents.
2571
2769
        tt.set_executability(entry.executable, trans_id)
2572
2770
 
2573
2771
 
 
2772
@deprecated_function(deprecated_in((2, 3, 0)))
2574
2773
def get_backup_name(entry, by_parent, parent_trans_id, tt):
2575
2774
    return _get_backup_name(entry.name, by_parent, parent_trans_id, tt)
2576
2775
 
2577
2776
 
 
2777
@deprecated_function(deprecated_in((2, 3, 0)))
2578
2778
def _get_backup_name(name, by_parent, parent_trans_id, tt):
2579
2779
    """Produce a backup-style name that appears to be available"""
2580
2780
    def name_gen():
2629
2829
                unversioned_filter=working_tree.is_ignored)
2630
2830
            delta.report_changes(tt.iter_changes(), change_reporter)
2631
2831
        for conflict in conflicts:
2632
 
            warning(conflict)
 
2832
            trace.warning(unicode(conflict))
2633
2833
        pp.next_phase()
2634
2834
        tt.apply()
2635
2835
        working_tree.set_merge_modified(merge_modified)
2643
2843
def _prepare_revert_transform(working_tree, target_tree, tt, filenames,
2644
2844
                              backups, pp, basis_tree=None,
2645
2845
                              merge_modified=None):
2646
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2846
    child_pb = ui.ui_factory.nested_progress_bar()
2647
2847
    try:
2648
2848
        if merge_modified is None:
2649
2849
            merge_modified = working_tree.merge_modified()
2652
2852
                                      merge_modified, basis_tree)
2653
2853
    finally:
2654
2854
        child_pb.finished()
2655
 
    child_pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
2855
    child_pb = ui.ui_factory.nested_progress_bar()
2656
2856
    try:
2657
2857
        raw_conflicts = resolve_conflicts(tt, child_pb,
2658
2858
            lambda t, c: conflict_pass(t, c, target_tree))
2666
2866
                 backups, merge_modified, basis_tree=None):
2667
2867
    if basis_tree is not None:
2668
2868
        basis_tree.lock_read()
2669
 
    change_list = target_tree.iter_changes(working_tree,
 
2869
    # We ask the working_tree for its changes relative to the target, rather
 
2870
    # than the target changes relative to the working tree. Because WT4 has an
 
2871
    # optimizer to compare itself to a target, but no optimizer for the
 
2872
    # reverse.
 
2873
    change_list = working_tree.iter_changes(target_tree,
2670
2874
        specific_files=specific_files, pb=pb)
2671
2875
    if target_tree.get_root_id() is None:
2672
2876
        skip_root = True
2676
2880
        deferred_files = []
2677
2881
        for id_num, (file_id, path, changed_content, versioned, parent, name,
2678
2882
                kind, executable) in enumerate(change_list):
2679
 
            if skip_root and file_id[0] is not None and parent[0] is None:
 
2883
            target_path, wt_path = path
 
2884
            target_versioned, wt_versioned = versioned
 
2885
            target_parent, wt_parent = parent
 
2886
            target_name, wt_name = name
 
2887
            target_kind, wt_kind = kind
 
2888
            target_executable, wt_executable = executable
 
2889
            if skip_root and wt_parent is None:
2680
2890
                continue
2681
2891
            trans_id = tt.trans_id_file_id(file_id)
2682
2892
            mode_id = None
2683
2893
            if changed_content:
2684
2894
                keep_content = False
2685
 
                if kind[0] == 'file' and (backups or kind[1] is None):
 
2895
                if wt_kind == 'file' and (backups or target_kind is None):
2686
2896
                    wt_sha1 = working_tree.get_file_sha1(file_id)
2687
2897
                    if merge_modified.get(file_id) != wt_sha1:
2688
2898
                        # acquire the basis tree lazily to prevent the
2694
2904
                        if file_id in basis_tree:
2695
2905
                            if wt_sha1 != basis_tree.get_file_sha1(file_id):
2696
2906
                                keep_content = True
2697
 
                        elif kind[1] is None and not versioned[1]:
 
2907
                        elif target_kind is None and not target_versioned:
2698
2908
                            keep_content = True
2699
 
                if kind[0] is not None:
 
2909
                if wt_kind is not None:
2700
2910
                    if not keep_content:
2701
2911
                        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)
 
2912
                    elif target_kind is not None:
 
2913
                        parent_trans_id = tt.trans_id_file_id(wt_parent)
 
2914
                        backup_name = tt._available_backup_name(
 
2915
                            wt_name, parent_trans_id)
2707
2916
                        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):
 
2917
                        new_trans_id = tt.create_path(wt_name, parent_trans_id)
 
2918
                        if wt_versioned and target_versioned:
2710
2919
                            tt.unversion_file(trans_id)
2711
2920
                            tt.version_file(file_id, new_trans_id)
2712
2921
                        # New contents should have the same unix perms as old
2713
2922
                        # contents
2714
2923
                        mode_id = trans_id
2715
2924
                        trans_id = new_trans_id
2716
 
                if kind[1] in ('directory', 'tree-reference'):
 
2925
                if target_kind in ('directory', 'tree-reference'):
2717
2926
                    tt.create_directory(trans_id)
2718
 
                    if kind[1] == 'tree-reference':
 
2927
                    if target_kind == 'tree-reference':
2719
2928
                        revision = target_tree.get_reference_revision(file_id,
2720
 
                                                                      path[1])
 
2929
                                                                      target_path)
2721
2930
                        tt.set_tree_reference(revision, trans_id)
2722
 
                elif kind[1] == 'symlink':
 
2931
                elif target_kind == 'symlink':
2723
2932
                    tt.create_symlink(target_tree.get_symlink_target(file_id),
2724
2933
                                      trans_id)
2725
 
                elif kind[1] == 'file':
 
2934
                elif target_kind == 'file':
2726
2935
                    deferred_files.append((file_id, (trans_id, mode_id)))
2727
2936
                    if basis_tree is None:
2728
2937
                        basis_tree = working_tree.basis_tree()
2736
2945
                        merge_modified[file_id] = new_sha1
2737
2946
 
2738
2947
                    # 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):
 
2948
                    if keep_content and wt_executable == target_executable:
 
2949
                        tt.set_executability(target_executable, trans_id)
 
2950
                elif target_kind is not None:
 
2951
                    raise AssertionError(target_kind)
 
2952
            if not wt_versioned and target_versioned:
2744
2953
                tt.version_file(file_id, trans_id)
2745
 
            if versioned == (True, False):
 
2954
            if wt_versioned and not target_versioned:
2746
2955
                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:
 
2956
            if (target_name is not None and
 
2957
                (wt_name != target_name or wt_parent != target_parent)):
 
2958
                if target_name == '' and target_parent is None:
2750
2959
                    parent_trans = ROOT_PARENT
2751
2960
                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)
 
2961
                    parent_trans = tt.trans_id_file_id(target_parent)
 
2962
                if wt_parent is None and wt_versioned:
 
2963
                    tt.adjust_root_path(target_name, parent_trans)
2755
2964
                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)
 
2965
                    tt.adjust_path(target_name, parent_trans, trans_id)
 
2966
            if wt_executable != target_executable and target_kind == "file":
 
2967
                tt.set_executability(target_executable, trans_id)
2759
2968
        if working_tree.supports_content_filtering():
2760
2969
            for index, ((trans_id, mode_id), bytes) in enumerate(
2761
2970
                target_tree.iter_files_bytes(deferred_files)):
2832
3041
 
2833
3042
        elif c_type == 'missing parent':
2834
3043
            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:
 
3044
            if trans_id in tt._removed_contents:
 
3045
                cancel_deletion = True
 
3046
                orphans = tt._get_potential_orphans(trans_id)
 
3047
                if orphans:
 
3048
                    cancel_deletion = False
 
3049
                    # All children are orphans
 
3050
                    for o in orphans:
 
3051
                        try:
 
3052
                            tt.new_orphan(o, trans_id)
 
3053
                        except OrphaningError:
 
3054
                            # Something bad happened so we cancel the directory
 
3055
                            # deletion which will leave it in place with a
 
3056
                            # conflict. The user can deal with it from there.
 
3057
                            # Note that this also catch the case where we don't
 
3058
                            # want to create orphans and leave the directory in
 
3059
                            # place.
 
3060
                            cancel_deletion = True
 
3061
                            break
 
3062
                if cancel_deletion:
 
3063
                    # Cancel the directory deletion
 
3064
                    tt.cancel_deletion(trans_id)
 
3065
                    new_conflicts.add(('deleting parent', 'Not deleting',
 
3066
                                       trans_id))
 
3067
            else:
2840
3068
                create = True
2841
3069
                try:
2842
3070
                    tt.final_name(trans_id)
2845
3073
                        file_id = tt.final_file_id(trans_id)
2846
3074
                        if file_id is None:
2847
3075
                            file_id = tt.inactive_file_id(trans_id)
2848
 
                        entry = path_tree.inventory[file_id]
 
3076
                        _, entry = path_tree.iter_entries_by_dir(
 
3077
                            [file_id]).next()
2849
3078
                        # special-case the other tree root (move its
2850
3079
                        # children to current root)
2851
3080
                        if entry.parent_id is None:
2867
3096
            file_id = tt.inactive_file_id(conflict[1])
2868
3097
            # special-case the other tree root (move its children instead)
2869
3098
            if path_tree and file_id in path_tree:
2870
 
                if path_tree.inventory[file_id].parent_id is None:
 
3099
                if path_tree.path2id('') == file_id:
 
3100
                    # This is the root entry, skip it
2871
3101
                    continue
2872
3102
            tt.version_file(file_id, conflict[1])
2873
3103
            new_conflicts.add((c_type, 'Versioned directory', conflict[1]))
2925
3155
    def rename(self, from_, to):
2926
3156
        """Rename a file from one path to another."""
2927
3157
        try:
2928
 
            osutils.rename(from_, to)
 
3158
            os.rename(from_, to)
2929
3159
        except OSError, e:
2930
3160
            if e.errno in (errno.EEXIST, errno.ENOTEMPTY):
2931
3161
                raise errors.FileExists(to, str(e))
2932
 
            raise
 
3162
            # normal OSError doesn't include filenames so it's hard to see where
 
3163
            # the problem is, see https://bugs.launchpad.net/bzr/+bug/491763
 
3164
            raise errors.TransformRenameFailed(from_, to, str(e), e.errno)
2933
3165
        self.past_renames.append((from_, to))
2934
3166
 
2935
3167
    def pre_delete(self, from_, to):
2945
3177
    def rollback(self):
2946
3178
        """Reverse all renames that have been performed"""
2947
3179
        for from_, to in reversed(self.past_renames):
2948
 
            osutils.rename(to, from_)
 
3180
            try:
 
3181
                os.rename(to, from_)
 
3182
            except OSError, e:
 
3183
                raise errors.TransformRenameFailed(to, from_, str(e), e.errno)
2949
3184
        # after rollback, don't reuse _FileMover
2950
3185
        past_renames = None
2951
3186
        pending_deletions = None