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Viewing changes to bzrlib/workingtree.py

  • Committer: Andrew Bennetts
  • Date: 2011-02-25 08:45:27 UTC
  • mto: This revision was merged to the branch mainline in revision 5695.
  • Revision ID: andrew.bennetts@canonical.com-20110225084527-0ucp7p00d00hoqon
Add another test.

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# Copyright (C) 2005-2010 Canonical Ltd
 
1
# Copyright (C) 2005-2011 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
49
49
    branch,
50
50
    bzrdir,
51
51
    conflicts as _mod_conflicts,
 
52
    controldir,
52
53
    errors,
53
54
    generate_ids,
54
55
    globbing,
61
62
    revisiontree,
62
63
    trace,
63
64
    transform,
 
65
    transport,
64
66
    ui,
65
67
    views,
66
68
    xml5,
67
69
    xml7,
68
70
    )
69
 
import bzrlib.branch
70
 
from bzrlib.transport import get_transport
71
71
from bzrlib.workingtree_4 import (
72
72
    WorkingTreeFormat4,
73
73
    WorkingTreeFormat5,
77
77
 
78
78
from bzrlib import symbol_versioning
79
79
from bzrlib.decorators import needs_read_lock, needs_write_lock
 
80
from bzrlib.lock import LogicalLockResult
80
81
from bzrlib.lockable_files import LockableFiles
81
82
from bzrlib.lockdir import LockDir
82
83
import bzrlib.mutabletree
168
169
 
169
170
 
170
171
class WorkingTree(bzrlib.mutabletree.MutableTree,
171
 
    bzrdir.ControlComponent):
 
172
    controldir.ControlComponent):
172
173
    """Working copy tree.
173
174
 
174
175
    The inventory is held in the `Branch` working-inventory, and the
176
177
 
177
178
    It is possible for a `WorkingTree` to have a filename which is
178
179
    not listed in the Inventory and vice versa.
 
180
 
 
181
    :ivar basedir: The root of the tree on disk. This is a unicode path object
 
182
        (as opposed to a URL).
179
183
    """
180
184
 
181
185
    # override this to set the strategy for storing views
205
209
        else:
206
210
            self._branch = self.bzrdir.open_branch()
207
211
        self.basedir = realpath(basedir)
208
 
        # if branch is at our basedir and is a format 6 or less
209
 
        if isinstance(self._format, WorkingTreeFormat2):
210
 
            # share control object
211
 
            self._control_files = self.branch.control_files
212
 
        else:
213
 
            # assume all other formats have their own control files.
214
 
            self._control_files = _control_files
 
212
        self._control_files = _control_files
215
213
        self._transport = self._control_files._transport
216
214
        # update the whole cache up front and write to disk if anything changed;
217
215
        # in the future we might want to do this more selectively
258
256
    def _detect_case_handling(self):
259
257
        wt_trans = self.bzrdir.get_workingtree_transport(None)
260
258
        try:
261
 
            wt_trans.stat("FoRMaT")
 
259
            wt_trans.stat(self._format.case_sensitive_filename)
262
260
        except errors.NoSuchFile:
263
261
            self.case_sensitive = True
264
262
        else:
346
344
        if path is None:
347
345
            path = osutils.getcwd()
348
346
        control, relpath = bzrdir.BzrDir.open_containing(path)
349
 
 
350
347
        return control.open_workingtree(), relpath
351
348
 
352
349
    @staticmethod
 
350
    def open_containing_paths(file_list, default_directory=None,
 
351
                              canonicalize=True, apply_view=True):
 
352
        """Open the WorkingTree that contains a set of paths.
 
353
 
 
354
        Fail if the paths given are not all in a single tree.
 
355
 
 
356
        This is used for the many command-line interfaces that take a list of
 
357
        any number of files and that require they all be in the same tree.
 
358
        """
 
359
        if default_directory is None:
 
360
            default_directory = u'.'
 
361
        # recommended replacement for builtins.internal_tree_files
 
362
        if file_list is None or len(file_list) == 0:
 
363
            tree = WorkingTree.open_containing(default_directory)[0]
 
364
            # XXX: doesn't really belong here, and seems to have the strange
 
365
            # side effect of making it return a bunch of files, not the whole
 
366
            # tree -- mbp 20100716
 
367
            if tree.supports_views() and apply_view:
 
368
                view_files = tree.views.lookup_view()
 
369
                if view_files:
 
370
                    file_list = view_files
 
371
                    view_str = views.view_display_str(view_files)
 
372
                    note("Ignoring files outside view. View is %s" % view_str)
 
373
            return tree, file_list
 
374
        if default_directory == u'.':
 
375
            seed = file_list[0]
 
376
        else:
 
377
            seed = default_directory
 
378
            file_list = [osutils.pathjoin(default_directory, f)
 
379
                         for f in file_list]
 
380
        tree = WorkingTree.open_containing(seed)[0]
 
381
        return tree, tree.safe_relpath_files(file_list, canonicalize,
 
382
                                             apply_view=apply_view)
 
383
 
 
384
    def safe_relpath_files(self, file_list, canonicalize=True, apply_view=True):
 
385
        """Convert file_list into a list of relpaths in tree.
 
386
 
 
387
        :param self: A tree to operate on.
 
388
        :param file_list: A list of user provided paths or None.
 
389
        :param apply_view: if True and a view is set, apply it or check that
 
390
            specified files are within it
 
391
        :return: A list of relative paths.
 
392
        :raises errors.PathNotChild: When a provided path is in a different self
 
393
            than self.
 
394
        """
 
395
        if file_list is None:
 
396
            return None
 
397
        if self.supports_views() and apply_view:
 
398
            view_files = self.views.lookup_view()
 
399
        else:
 
400
            view_files = []
 
401
        new_list = []
 
402
        # self.relpath exists as a "thunk" to osutils, but canonical_relpath
 
403
        # doesn't - fix that up here before we enter the loop.
 
404
        if canonicalize:
 
405
            fixer = lambda p: osutils.canonical_relpath(self.basedir, p)
 
406
        else:
 
407
            fixer = self.relpath
 
408
        for filename in file_list:
 
409
            relpath = fixer(osutils.dereference_path(filename))
 
410
            if view_files and not osutils.is_inside_any(view_files, relpath):
 
411
                raise errors.FileOutsideView(filename, view_files)
 
412
            new_list.append(relpath)
 
413
        return new_list
 
414
 
 
415
    @staticmethod
353
416
    def open_downlevel(path=None):
354
417
        """Open an unsupported working tree.
355
418
 
368
431
                return True, None
369
432
            else:
370
433
                return True, tree
371
 
        transport = get_transport(location)
372
 
        iterator = bzrdir.BzrDir.find_bzrdirs(transport, evaluate=evaluate,
 
434
        t = transport.get_transport(location)
 
435
        iterator = bzrdir.BzrDir.find_bzrdirs(t, evaluate=evaluate,
373
436
                                              list_current=list_current)
374
 
        return [t for t in iterator if t is not None]
 
437
        return [tr for tr in iterator if tr is not None]
375
438
 
376
439
    # should be deprecated - this is slow and in any case treating them as a
377
440
    # container is (we now know) bad style -- mbp 20070302
462
525
        return (file_obj, stat_value)
463
526
 
464
527
    def get_file_text(self, file_id, path=None, filtered=True):
465
 
        return self.get_file(file_id, path=path, filtered=filtered).read()
 
528
        my_file = self.get_file(file_id, path=path, filtered=filtered)
 
529
        try:
 
530
            return my_file.read()
 
531
        finally:
 
532
            my_file.close()
466
533
 
467
534
    def get_file_byname(self, filename, filtered=True):
468
535
        path = self.abspath(filename)
522
589
 
523
590
        # Now we have the parents of this content
524
591
        annotator = self.branch.repository.texts.get_annotator()
525
 
        text = self.get_file(file_id).read()
 
592
        text = self.get_file_text(file_id)
526
593
        this_key =(file_id, default_revision)
527
594
        annotator.add_special_text(this_key, file_parent_keys, text)
528
595
        annotations = [(key[-1], line)
1202
1269
                # absolute path
1203
1270
                fap = from_dir_abspath + '/' + f
1204
1271
 
1205
 
                f_ie = inv.get_child(from_dir_id, f)
 
1272
                dir_ie = inv[from_dir_id]
 
1273
                if dir_ie.kind == 'directory':
 
1274
                    f_ie = dir_ie.children.get(f)
 
1275
                else:
 
1276
                    f_ie = None
1206
1277
                if f_ie:
1207
1278
                    c = 'V'
1208
1279
                elif self.is_ignored(fp[1:]):
1209
1280
                    c = 'I'
1210
1281
                else:
1211
 
                    # we may not have found this file, because of a unicode issue
 
1282
                    # we may not have found this file, because of a unicode
 
1283
                    # issue, or because the directory was actually a symlink.
1212
1284
                    f_norm, can_access = osutils.normalized_filename(f)
1213
1285
                    if f == f_norm or not can_access:
1214
1286
                        # No change, so treat this file normally
1257
1329
                stack.pop()
1258
1330
 
1259
1331
    @needs_tree_write_lock
1260
 
    def move(self, from_paths, to_dir=None, after=False, **kwargs):
 
1332
    def move(self, from_paths, to_dir=None, after=False):
1261
1333
        """Rename files.
1262
1334
 
1263
1335
        to_dir must exist in the inventory.
1297
1369
 
1298
1370
        # check for deprecated use of signature
1299
1371
        if to_dir is None:
1300
 
            to_dir = kwargs.get('to_name', None)
1301
 
            if to_dir is None:
1302
 
                raise TypeError('You must supply a target directory')
1303
 
            else:
1304
 
                symbol_versioning.warn('The parameter to_name was deprecated'
1305
 
                                       ' in version 0.13. Use to_dir instead',
1306
 
                                       DeprecationWarning)
1307
 
 
 
1372
            raise TypeError('You must supply a target directory')
1308
1373
        # check destination directory
1309
1374
        if isinstance(from_paths, basestring):
1310
1375
            raise ValueError()
1319
1384
        to_dir_id = inv.path2id(to_dir)
1320
1385
        if to_dir_id is None:
1321
1386
            raise errors.BzrMoveFailedError('',to_dir,
1322
 
                errors.NotVersionedError(path=str(to_dir)))
 
1387
                errors.NotVersionedError(path=to_dir))
1323
1388
 
1324
1389
        to_dir_ie = inv[to_dir_id]
1325
1390
        if to_dir_ie.kind != 'directory':
1332
1397
            from_id = inv.path2id(from_rel)
1333
1398
            if from_id is None:
1334
1399
                raise errors.BzrMoveFailedError(from_rel,to_dir,
1335
 
                    errors.NotVersionedError(path=str(from_rel)))
 
1400
                    errors.NotVersionedError(path=from_rel))
1336
1401
 
1337
1402
            from_entry = inv[from_id]
1338
1403
            from_parent_id = from_entry.parent_id
1380
1445
            # check the inventory for source and destination
1381
1446
            if from_id is None:
1382
1447
                raise errors.BzrMoveFailedError(from_rel,to_rel,
1383
 
                    errors.NotVersionedError(path=str(from_rel)))
 
1448
                    errors.NotVersionedError(path=from_rel))
1384
1449
            if to_id is not None:
1385
1450
                raise errors.BzrMoveFailedError(from_rel,to_rel,
1386
 
                    errors.AlreadyVersionedError(path=str(to_rel)))
 
1451
                    errors.AlreadyVersionedError(path=to_rel))
1387
1452
 
1388
1453
            # try to determine the mode for rename (only change inv or change
1389
1454
            # inv and file system)
1390
1455
            if after:
1391
1456
                if not self.has_filename(to_rel):
1392
1457
                    raise errors.BzrMoveFailedError(from_id,to_rel,
1393
 
                        errors.NoSuchFile(path=str(to_rel),
 
1458
                        errors.NoSuchFile(path=to_rel,
1394
1459
                        extra="New file has not been created yet"))
1395
1460
                only_change_inv = True
1396
1461
            elif not self.has_filename(from_rel) and self.has_filename(to_rel):
1498
1563
            from_id = basis_tree.path2id(from_rel)
1499
1564
            if from_id is None:
1500
1565
                raise errors.BzrRenameFailedError(from_rel,to_rel,
1501
 
                    errors.NotVersionedError(path=str(from_rel)))
 
1566
                    errors.NotVersionedError(path=from_rel))
1502
1567
            # put entry back in the inventory so we can rename it
1503
1568
            from_entry = basis_tree.inventory[from_id].copy()
1504
1569
            inv.add(from_entry)
1522
1587
        # versioned
1523
1588
        if to_dir_id is None:
1524
1589
            raise errors.BzrMoveFailedError(from_rel,to_rel,
1525
 
                errors.NotVersionedError(path=str(to_dir)))
 
1590
                errors.NotVersionedError(path=to_dir))
1526
1591
 
1527
1592
        # all checks done. now we can continue with our actual work
1528
1593
        mutter('rename_one:\n'
1600
1665
 
1601
1666
    @needs_write_lock
1602
1667
    def pull(self, source, overwrite=False, stop_revision=None,
1603
 
             change_reporter=None, possible_transports=None, local=False):
 
1668
             change_reporter=None, possible_transports=None, local=False,
 
1669
             show_base=False):
1604
1670
        source.lock_read()
1605
1671
        try:
1606
1672
            old_revision_info = self.branch.last_revision_info()
1620
1686
                                basis_tree,
1621
1687
                                this_tree=self,
1622
1688
                                pb=None,
1623
 
                                change_reporter=change_reporter)
 
1689
                                change_reporter=change_reporter,
 
1690
                                show_base=show_base)
1624
1691
                    basis_root_id = basis_tree.get_root_id()
1625
1692
                    new_root_id = new_basis_tree.get_root_id()
1626
1693
                    if basis_root_id != new_root_id:
1798
1865
            raise errors.ObjectNotLocked(self)
1799
1866
 
1800
1867
    def lock_read(self):
1801
 
        """See Branch.lock_read, and WorkingTree.unlock."""
 
1868
        """Lock the tree for reading.
 
1869
 
 
1870
        This also locks the branch, and can be unlocked via self.unlock().
 
1871
 
 
1872
        :return: A bzrlib.lock.LogicalLockResult.
 
1873
        """
1802
1874
        if not self.is_locked():
1803
1875
            self._reset_data()
1804
1876
        self.branch.lock_read()
1805
1877
        try:
1806
 
            return self._control_files.lock_read()
 
1878
            self._control_files.lock_read()
 
1879
            return LogicalLockResult(self.unlock)
1807
1880
        except:
1808
1881
            self.branch.unlock()
1809
1882
            raise
1810
1883
 
1811
1884
    def lock_tree_write(self):
1812
 
        """See MutableTree.lock_tree_write, and WorkingTree.unlock."""
 
1885
        """See MutableTree.lock_tree_write, and WorkingTree.unlock.
 
1886
 
 
1887
        :return: A bzrlib.lock.LogicalLockResult.
 
1888
        """
1813
1889
        if not self.is_locked():
1814
1890
            self._reset_data()
1815
1891
        self.branch.lock_read()
1816
1892
        try:
1817
 
            return self._control_files.lock_write()
 
1893
            self._control_files.lock_write()
 
1894
            return LogicalLockResult(self.unlock)
1818
1895
        except:
1819
1896
            self.branch.unlock()
1820
1897
            raise
1821
1898
 
1822
1899
    def lock_write(self):
1823
 
        """See MutableTree.lock_write, and WorkingTree.unlock."""
 
1900
        """See MutableTree.lock_write, and WorkingTree.unlock.
 
1901
 
 
1902
        :return: A bzrlib.lock.LogicalLockResult.
 
1903
        """
1824
1904
        if not self.is_locked():
1825
1905
            self._reset_data()
1826
1906
        self.branch.lock_write()
1827
1907
        try:
1828
 
            return self._control_files.lock_write()
 
1908
            self._control_files.lock_write()
 
1909
            return LogicalLockResult(self.unlock)
1829
1910
        except:
1830
1911
            self.branch.unlock()
1831
1912
            raise
1948
2029
 
1949
2030
        inv_delta = []
1950
2031
 
1951
 
        new_files=set()
 
2032
        all_files = set() # specified and nested files 
1952
2033
        unknown_nested_files=set()
1953
2034
        if to_file is None:
1954
2035
            to_file = sys.stdout
1955
2036
 
 
2037
        files_to_backup = []
 
2038
 
1956
2039
        def recurse_directory_to_add_files(directory):
1957
2040
            # Recurse directory and add all files
1958
2041
            # so we can check if they have changed.
1959
 
            for parent_info, file_infos in\
1960
 
                self.walkdirs(directory):
 
2042
            for parent_info, file_infos in self.walkdirs(directory):
1961
2043
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
1962
2044
                    # Is it versioned or ignored?
1963
 
                    if self.path2id(relpath) or self.is_ignored(relpath):
 
2045
                    if self.path2id(relpath):
1964
2046
                        # Add nested content for deletion.
1965
 
                        new_files.add(relpath)
 
2047
                        all_files.add(relpath)
1966
2048
                    else:
1967
 
                        # Files which are not versioned and not ignored
 
2049
                        # Files which are not versioned
1968
2050
                        # should be treated as unknown.
1969
 
                        unknown_nested_files.add((relpath, None, kind))
 
2051
                        files_to_backup.append(relpath)
1970
2052
 
1971
2053
        for filename in files:
1972
2054
            # Get file name into canonical form.
1973
2055
            abspath = self.abspath(filename)
1974
2056
            filename = self.relpath(abspath)
1975
2057
            if len(filename) > 0:
1976
 
                new_files.add(filename)
 
2058
                all_files.add(filename)
1977
2059
                recurse_directory_to_add_files(filename)
1978
2060
 
1979
 
        files = list(new_files)
 
2061
        files = list(all_files)
1980
2062
 
1981
2063
        if len(files) == 0:
1982
2064
            return # nothing to do
1986
2068
 
1987
2069
        # Bail out if we are going to delete files we shouldn't
1988
2070
        if not keep_files and not force:
1989
 
            has_changed_files = len(unknown_nested_files) > 0
1990
 
            if not has_changed_files:
1991
 
                for (file_id, path, content_change, versioned, parent_id, name,
1992
 
                     kind, executable) in self.iter_changes(self.basis_tree(),
1993
 
                         include_unchanged=True, require_versioned=False,
1994
 
                         want_unversioned=True, specific_files=files):
1995
 
                    if versioned == (False, False):
1996
 
                        # The record is unknown ...
1997
 
                        if not self.is_ignored(path[1]):
1998
 
                            # ... but not ignored
1999
 
                            has_changed_files = True
2000
 
                            break
2001
 
                    elif content_change and (kind[1] is not None):
2002
 
                        # Versioned and changed, but not deleted
2003
 
                        has_changed_files = True
2004
 
                        break
 
2071
            for (file_id, path, content_change, versioned, parent_id, name,
 
2072
                 kind, executable) in self.iter_changes(self.basis_tree(),
 
2073
                     include_unchanged=True, require_versioned=False,
 
2074
                     want_unversioned=True, specific_files=files):
 
2075
                if versioned[0] == False:
 
2076
                    # The record is unknown or newly added
 
2077
                    files_to_backup.append(path[1])
 
2078
                elif (content_change and (kind[1] is not None) and
 
2079
                        osutils.is_inside_any(files, path[1])):
 
2080
                    # Versioned and changed, but not deleted, and still
 
2081
                    # in one of the dirs to be deleted.
 
2082
                    files_to_backup.append(path[1])
2005
2083
 
2006
 
            if has_changed_files:
2007
 
                # Make delta show ALL applicable changes in error message.
2008
 
                tree_delta = self.changes_from(self.basis_tree(),
2009
 
                    require_versioned=False, want_unversioned=True,
2010
 
                    specific_files=files)
2011
 
                for unknown_file in unknown_nested_files:
2012
 
                    if unknown_file not in tree_delta.unversioned:
2013
 
                        tree_delta.unversioned.extend((unknown_file,))
2014
 
                raise errors.BzrRemoveChangedFilesError(tree_delta)
 
2084
        def backup(file_to_backup):
 
2085
            backup_name = self.bzrdir._available_backup_name(file_to_backup)
 
2086
            osutils.rename(abs_path, self.abspath(backup_name))
 
2087
            return "removed %s (but kept a copy: %s)" % (file_to_backup,
 
2088
                                                         backup_name)
2015
2089
 
2016
2090
        # Build inv_delta and delete files where applicable,
2017
2091
        # do this before any modifications to inventory.
2041
2115
                        len(os.listdir(abs_path)) > 0):
2042
2116
                        if force:
2043
2117
                            osutils.rmtree(abs_path)
 
2118
                            message = "deleted %s" % (f,)
2044
2119
                        else:
2045
 
                            message = "%s is not an empty directory "\
2046
 
                                "and won't be deleted." % (f,)
 
2120
                            message = backup(f)
2047
2121
                    else:
2048
 
                        osutils.delete_any(abs_path)
2049
 
                        message = "deleted %s" % (f,)
 
2122
                        if f in files_to_backup:
 
2123
                            message = backup(f)
 
2124
                        else:
 
2125
                            osutils.delete_any(abs_path)
 
2126
                            message = "deleted %s" % (f,)
2050
2127
                elif message is not None:
2051
2128
                    # Only care if we haven't done anything yet.
2052
2129
                    message = "%s does not exist." % (f,)
2189
2266
    _marker = object()
2190
2267
 
2191
2268
    def update(self, change_reporter=None, possible_transports=None,
2192
 
               revision=None, old_tip=_marker):
 
2269
               revision=None, old_tip=_marker, show_base=False):
2193
2270
        """Update a working tree along its branch.
2194
2271
 
2195
2272
        This will update the branch if its bound too, which means we have
2232
2309
            else:
2233
2310
                if old_tip is self._marker:
2234
2311
                    old_tip = None
2235
 
            return self._update_tree(old_tip, change_reporter, revision)
 
2312
            return self._update_tree(old_tip, change_reporter, revision, show_base)
2236
2313
        finally:
2237
2314
            self.unlock()
2238
2315
 
2239
2316
    @needs_tree_write_lock
2240
 
    def _update_tree(self, old_tip=None, change_reporter=None, revision=None):
 
2317
    def _update_tree(self, old_tip=None, change_reporter=None, revision=None,
 
2318
                     show_base=False):
2241
2319
        """Update a tree to the master branch.
2242
2320
 
2243
2321
        :param old_tip: if supplied, the previous tip revision the branch,
2270
2348
            other_tree = self.branch.repository.revision_tree(old_tip)
2271
2349
            nb_conflicts = merge.merge_inner(self.branch, other_tree,
2272
2350
                                             base_tree, this_tree=self,
2273
 
                                             change_reporter=change_reporter)
 
2351
                                             change_reporter=change_reporter,
 
2352
                                             show_base=show_base)
2274
2353
            if nb_conflicts:
2275
2354
                self.add_parent_tree((old_tip, other_tree))
2276
2355
                trace.note('Rerun update after fixing the conflicts.')
2300
2379
 
2301
2380
            nb_conflicts = merge.merge_inner(self.branch, to_tree, base_tree,
2302
2381
                                             this_tree=self,
2303
 
                                             change_reporter=change_reporter)
 
2382
                                             change_reporter=change_reporter,
 
2383
                                             show_base=show_base)
2304
2384
            self.set_last_revision(revision)
2305
2385
            # TODO - dedup parents list with things merged by pull ?
2306
2386
            # reuse the tree we've updated to to set the basis:
2595
2675
        """
2596
2676
        return
2597
2677
 
 
2678
    @needs_read_lock
 
2679
    def check_state(self):
 
2680
        """Check that the working state is/isn't valid."""
 
2681
        check_refs = self._get_check_refs()
 
2682
        refs = {}
 
2683
        for ref in check_refs:
 
2684
            kind, value = ref
 
2685
            if kind == 'trees':
 
2686
                refs[ref] = self.branch.repository.revision_tree(value)
 
2687
        self._check(refs)
 
2688
 
 
2689
    @needs_tree_write_lock
 
2690
    def reset_state(self, revision_ids=None):
 
2691
        """Reset the state of the working tree.
 
2692
 
 
2693
        This does a hard-reset to a last-known-good state. This is a way to
 
2694
        fix if something got corrupted (like the .bzr/checkout/dirstate file)
 
2695
        """
 
2696
        if revision_ids is None:
 
2697
            revision_ids = self.get_parent_ids()
 
2698
        if not revision_ids:
 
2699
            rt = self.branch.repository.revision_tree(
 
2700
                _mod_revision.NULL_REVISION)
 
2701
        else:
 
2702
            rt = self.branch.repository.revision_tree(revision_ids[0])
 
2703
        self._write_inventory(rt.inventory)
 
2704
        self.set_parent_ids(revision_ids)
 
2705
 
2598
2706
    def _get_rules_searcher(self, default_searcher):
2599
2707
        """See Tree._get_rules_searcher."""
2600
2708
        if self._rules_searcher is None:
2636
2744
 
2637
2745
        In Format2 WorkingTrees we have a single lock for the branch and tree
2638
2746
        so lock_tree_write() degrades to lock_write().
 
2747
 
 
2748
        :return: An object with an unlock method which will release the lock
 
2749
            obtained.
2639
2750
        """
2640
2751
        self.branch.lock_write()
2641
2752
        try:
2642
 
            return self._control_files.lock_write()
 
2753
            self._control_files.lock_write()
 
2754
            return self
2643
2755
        except:
2644
2756
            self.branch.unlock()
2645
2757
            raise
2770
2882
    _formats = {}
2771
2883
    """The known formats."""
2772
2884
 
 
2885
    _extra_formats = []
 
2886
    """Extra formats that can not be used in a metadir."""
 
2887
 
2773
2888
    requires_rich_root = False
2774
2889
 
2775
2890
    upgrade_recommended = False
2776
2891
 
 
2892
    requires_normalized_unicode_filenames = False
 
2893
 
 
2894
    case_sensitive_filename = "FoRMaT"
 
2895
 
 
2896
    missing_parent_conflicts = False
 
2897
    """If this format supports missing parent conflicts."""
 
2898
 
2777
2899
    @classmethod
2778
2900
    def find_format(klass, a_bzrdir):
2779
2901
        """Return the format for the working tree object in a_bzrdir."""
2828
2950
        klass._formats[format.get_format_string()] = format
2829
2951
 
2830
2952
    @classmethod
 
2953
    def register_extra_format(klass, format):
 
2954
        klass._extra_formats.append(format)
 
2955
 
 
2956
    @classmethod
 
2957
    def unregister_extra_format(klass, format):
 
2958
        klass._extra_formats.remove(format)
 
2959
 
 
2960
    @classmethod
 
2961
    def get_formats(klass):
 
2962
        return klass._formats.values() + klass._extra_formats
 
2963
 
 
2964
    @classmethod
2831
2965
    def set_default_format(klass, format):
2832
2966
        klass._default_format = format
2833
2967
 
2844
2978
 
2845
2979
    upgrade_recommended = True
2846
2980
 
 
2981
    requires_normalized_unicode_filenames = True
 
2982
 
 
2983
    case_sensitive_filename = "Branch-FoRMaT"
 
2984
 
 
2985
    missing_parent_conflicts = False
 
2986
 
2847
2987
    def get_format_description(self):
2848
2988
        """See WorkingTreeFormat.get_format_description()."""
2849
2989
        return "Working tree format 2"
2884
3024
                         inv,
2885
3025
                         _internal=True,
2886
3026
                         _format=self,
2887
 
                         _bzrdir=a_bzrdir)
 
3027
                         _bzrdir=a_bzrdir,
 
3028
                         _control_files=branch.control_files)
2888
3029
        basis_tree = branch.repository.revision_tree(revision_id)
2889
3030
        if basis_tree.inventory.root is not None:
2890
3031
            wt.set_root_id(basis_tree.get_root_id())
2915
3056
        wt = WorkingTree2(a_bzrdir.root_transport.local_abspath('.'),
2916
3057
                           _internal=True,
2917
3058
                           _format=self,
2918
 
                           _bzrdir=a_bzrdir)
 
3059
                           _bzrdir=a_bzrdir,
 
3060
                           _control_files=a_bzrdir.open_branch().control_files)
2919
3061
        return wt
2920
3062
 
2921
3063
class WorkingTreeFormat3(WorkingTreeFormat):
2932
3074
 
2933
3075
    upgrade_recommended = True
2934
3076
 
 
3077
    missing_parent_conflicts = True
 
3078
 
2935
3079
    def get_format_string(self):
2936
3080
        """See WorkingTreeFormat.get_format_string()."""
2937
3081
        return "Bazaar-NG Working Tree format 3"
3055
3199
WorkingTreeFormat.register_format(WorkingTreeFormat4())
3056
3200
WorkingTreeFormat.register_format(WorkingTreeFormat3())
3057
3201
WorkingTreeFormat.set_default_format(__default_format)
3058
 
# formats which have no format string are not discoverable
3059
 
# and not independently creatable, so are not registered.
3060
 
_legacy_formats = [WorkingTreeFormat2(),
3061
 
                   ]
 
3202
# Register extra formats which have no format string are not discoverable
 
3203
# and not independently creatable. They are implicitly created as part of
 
3204
# e.g. older Bazaar formats or foreign formats.
 
3205
WorkingTreeFormat.register_extra_format(WorkingTreeFormat2())