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Viewing changes to bzrlib/workingtree.py

  • Committer: Martin Pool
  • Date: 2009-07-10 07:14:02 UTC
  • mto: (4525.1.1 integration)
  • mto: This revision was merged to the branch mainline in revision 4526.
  • Revision ID: mbp@sourcefrog.net-20090710071402-dga5lhvdup5jeere
Rename remaining *_implementations tests

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bzrlib/workingtree.py
1
 
# Copyright (C) 2005-2010 Canonical Ltd
 
1
# Copyright (C) 2005, 2006, 2007, 2008, 2009 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
29
29
WorkingTree.open(dir).
30
30
"""
31
31
 
 
32
# TODO: Give the workingtree sole responsibility for the working inventory;
 
33
# remove the variable and references to it from the branch.  This may require
 
34
# updating the commit code so as to update the inventory within the working
 
35
# copy, and making sure there's only one WorkingTree for any directory on disk.
 
36
# At the moment they may alias the inventory and have old copies of it in
 
37
# memory.  (Now done? -- mbp 20060309)
32
38
 
33
39
from cStringIO import StringIO
34
40
import os
59
65
    merge,
60
66
    revision as _mod_revision,
61
67
    revisiontree,
 
68
    textui,
62
69
    trace,
63
70
    transform,
64
71
    ui,
77
84
 
78
85
from bzrlib import symbol_versioning
79
86
from bzrlib.decorators import needs_read_lock, needs_write_lock
80
 
from bzrlib.lock import LogicalLockResult
81
87
from bzrlib.lockable_files import LockableFiles
82
88
from bzrlib.lockdir import LockDir
83
89
import bzrlib.mutabletree
96
102
from bzrlib.filters import filtered_input_file
97
103
from bzrlib.trace import mutter, note
98
104
from bzrlib.transport.local import LocalTransport
 
105
from bzrlib.progress import DummyProgress, ProgressPhase
99
106
from bzrlib.revision import CURRENT_REVISION
100
107
from bzrlib.rio import RioReader, rio_file, Stanza
101
108
from bzrlib.symbol_versioning import (
105
112
 
106
113
 
107
114
MERGE_MODIFIED_HEADER_1 = "BZR merge-modified list format 1"
108
 
# TODO: Modifying the conflict objects or their type is currently nearly
109
 
# impossible as there is no clear relationship between the working tree format
110
 
# and the conflict list file format.
111
115
CONFLICT_HEADER_1 = "BZR conflict list format 1"
112
116
 
113
117
ERROR_PATH_NOT_FOUND = 3    # WindowsError errno code, equivalent to ENOENT
168
172
        return ''
169
173
 
170
174
 
171
 
class WorkingTree(bzrlib.mutabletree.MutableTree,
172
 
    bzrdir.ControlComponent):
 
175
class WorkingTree(bzrlib.mutabletree.MutableTree):
173
176
    """Working copy tree.
174
177
 
175
178
    The inventory is held in the `Branch` working-inventory, and the
248
251
        self._rules_searcher = None
249
252
        self.views = self._make_views()
250
253
 
251
 
    @property
252
 
    def user_transport(self):
253
 
        return self.bzrdir.user_transport
254
 
 
255
 
    @property
256
 
    def control_transport(self):
257
 
        return self._transport
258
 
 
259
254
    def _detect_case_handling(self):
260
255
        wt_trans = self.bzrdir.get_workingtree_transport(None)
261
256
        try:
286
281
        self._control_files.break_lock()
287
282
        self.branch.break_lock()
288
283
 
289
 
    def _get_check_refs(self):
290
 
        """Return the references needed to perform a check of this tree.
291
 
        
292
 
        The default implementation returns no refs, and is only suitable for
293
 
        trees that have no local caching and can commit on ghosts at any time.
294
 
 
295
 
        :seealso: bzrlib.check for details about check_refs.
296
 
        """
297
 
        return []
298
 
 
299
284
    def requires_rich_root(self):
300
285
        return self._format.requires_rich_root
301
286
 
549
534
        else:
550
535
            parents = [last_rev]
551
536
        try:
552
 
            merges_bytes = self._transport.get_bytes('pending-merges')
 
537
            merges_file = self._transport.get('pending-merges')
553
538
        except errors.NoSuchFile:
554
539
            pass
555
540
        else:
556
 
            for l in osutils.split_lines(merges_bytes):
 
541
            for l in merges_file.readlines():
557
542
                revision_id = l.rstrip('\n')
558
543
                parents.append(revision_id)
559
544
        return parents
618
603
 
619
604
    def get_file_size(self, file_id):
620
605
        """See Tree.get_file_size"""
621
 
        # XXX: this returns the on-disk size; it should probably return the
622
 
        # canonical size
623
606
        try:
624
607
            return os.path.getsize(self.id2abspath(file_id))
625
608
        except OSError, e:
641
624
 
642
625
    def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
643
626
        file_id = self.path2id(path)
644
 
        if file_id is None:
645
 
            # For unversioned files on win32, we just assume they are not
646
 
            # executable
647
 
            return False
648
627
        return self._inventory[file_id].executable
649
628
 
650
629
    def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
760
739
            raise
761
740
        kind = _mapper(stat_result.st_mode)
762
741
        if kind == 'file':
763
 
            return self._file_content_summary(path, stat_result)
 
742
            size = stat_result.st_size
 
743
            # try for a stat cache lookup
 
744
            executable = self._is_executable_from_path_and_stat(path, stat_result)
 
745
            return (kind, size, executable, self._sha_from_stat(
 
746
                path, stat_result))
764
747
        elif kind == 'directory':
765
748
            # perhaps it looks like a plain directory, but it's really a
766
749
            # reference.
773
756
        else:
774
757
            return (kind, None, None, None)
775
758
 
776
 
    def _file_content_summary(self, path, stat_result):
777
 
        size = stat_result.st_size
778
 
        executable = self._is_executable_from_path_and_stat(path, stat_result)
779
 
        # try for a stat cache lookup
780
 
        return ('file', size, executable, self._sha_from_stat(
781
 
            path, stat_result))
782
 
 
783
759
    def _check_parents_for_ghosts(self, revision_ids, allow_leftmost_as_ghost):
784
760
        """Common ghost checking functionality from set_parent_*.
785
761
 
905
881
 
906
882
    @needs_write_lock # because merge pulls data into the branch.
907
883
    def merge_from_branch(self, branch, to_revision=None, from_revision=None,
908
 
                          merge_type=None, force=False):
 
884
        merge_type=None):
909
885
        """Merge from a branch into this working tree.
910
886
 
911
887
        :param branch: The branch to merge from.
915
891
            branch.last_revision().
916
892
        """
917
893
        from bzrlib.merge import Merger, Merge3Merger
918
 
        merger = Merger(self.branch, this_tree=self)
919
 
        # check that there are no local alterations
920
 
        if not force and self.has_changes():
921
 
            raise errors.UncommittedChanges(self)
922
 
        if to_revision is None:
923
 
            to_revision = _mod_revision.ensure_null(branch.last_revision())
924
 
        merger.other_rev_id = to_revision
925
 
        if _mod_revision.is_null(merger.other_rev_id):
926
 
            raise errors.NoCommits(branch)
927
 
        self.branch.fetch(branch, last_revision=merger.other_rev_id)
928
 
        merger.other_basis = merger.other_rev_id
929
 
        merger.other_tree = self.branch.repository.revision_tree(
930
 
            merger.other_rev_id)
931
 
        merger.other_branch = branch
932
 
        if from_revision is None:
933
 
            merger.find_base()
934
 
        else:
935
 
            merger.set_base_revision(from_revision, branch)
936
 
        if merger.base_rev_id == merger.other_rev_id:
937
 
            raise errors.PointlessMerge
938
 
        merger.backup_files = False
939
 
        if merge_type is None:
940
 
            merger.merge_type = Merge3Merger
941
 
        else:
942
 
            merger.merge_type = merge_type
943
 
        merger.set_interesting_files(None)
944
 
        merger.show_base = False
945
 
        merger.reprocess = False
946
 
        conflicts = merger.do_merge()
947
 
        merger.set_pending()
 
894
        pb = ui.ui_factory.nested_progress_bar()
 
895
        try:
 
896
            merger = Merger(self.branch, this_tree=self, pb=pb)
 
897
            merger.pp = ProgressPhase("Merge phase", 5, pb)
 
898
            merger.pp.next_phase()
 
899
            # check that there are no
 
900
            # local alterations
 
901
            merger.check_basis(check_clean=True, require_commits=False)
 
902
            if to_revision is None:
 
903
                to_revision = _mod_revision.ensure_null(branch.last_revision())
 
904
            merger.other_rev_id = to_revision
 
905
            if _mod_revision.is_null(merger.other_rev_id):
 
906
                raise errors.NoCommits(branch)
 
907
            self.branch.fetch(branch, last_revision=merger.other_rev_id)
 
908
            merger.other_basis = merger.other_rev_id
 
909
            merger.other_tree = self.branch.repository.revision_tree(
 
910
                merger.other_rev_id)
 
911
            merger.other_branch = branch
 
912
            merger.pp.next_phase()
 
913
            if from_revision is None:
 
914
                merger.find_base()
 
915
            else:
 
916
                merger.set_base_revision(from_revision, branch)
 
917
            if merger.base_rev_id == merger.other_rev_id:
 
918
                raise errors.PointlessMerge
 
919
            merger.backup_files = False
 
920
            if merge_type is None:
 
921
                merger.merge_type = Merge3Merger
 
922
            else:
 
923
                merger.merge_type = merge_type
 
924
            merger.set_interesting_files(None)
 
925
            merger.show_base = False
 
926
            merger.reprocess = False
 
927
            conflicts = merger.do_merge()
 
928
            merger.set_pending()
 
929
        finally:
 
930
            pb.finished()
948
931
        return conflicts
949
932
 
950
933
    @needs_read_lock
1097
1080
        tree_transport = self.bzrdir.root_transport.clone(sub_path)
1098
1081
        if tree_transport.base != branch_transport.base:
1099
1082
            tree_bzrdir = format.initialize_on_transport(tree_transport)
1100
 
            branch.BranchReferenceFormat().initialize(tree_bzrdir,
1101
 
                target_branch=new_branch)
 
1083
            branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
1102
1084
        else:
1103
1085
            tree_bzrdir = branch_bzrdir
1104
1086
        wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
1142
1124
        This does not include files that have been deleted in this
1143
1125
        tree. Skips the control directory.
1144
1126
 
1145
 
        :param include_root: if True, return an entry for the root
 
1127
        :param include_root: if True, do not return an entry for the root
1146
1128
        :param from_dir: start from this directory or None for the root
1147
1129
        :param recursive: whether to recurse into subdirectories or not
1148
1130
        """
1494
1476
        from_tail = splitpath(from_rel)[-1]
1495
1477
        from_id = inv.path2id(from_rel)
1496
1478
        if from_id is None:
1497
 
            # if file is missing in the inventory maybe it's in the basis_tree
1498
 
            basis_tree = self.branch.basis_tree()
1499
 
            from_id = basis_tree.path2id(from_rel)
1500
 
            if from_id is None:
1501
 
                raise errors.BzrRenameFailedError(from_rel,to_rel,
1502
 
                    errors.NotVersionedError(path=str(from_rel)))
1503
 
            # put entry back in the inventory so we can rename it
1504
 
            from_entry = basis_tree.inventory[from_id].copy()
1505
 
            inv.add(from_entry)
1506
 
        else:
1507
 
            from_entry = inv[from_id]
 
1479
            raise errors.BzrRenameFailedError(from_rel,to_rel,
 
1480
                errors.NotVersionedError(path=str(from_rel)))
 
1481
        from_entry = inv[from_id]
1508
1482
        from_parent_id = from_entry.parent_id
1509
1483
        to_dir, to_tail = os.path.split(to_rel)
1510
1484
        to_dir_id = inv.path2id(to_dir)
1602
1576
    @needs_write_lock
1603
1577
    def pull(self, source, overwrite=False, stop_revision=None,
1604
1578
             change_reporter=None, possible_transports=None, local=False):
 
1579
        top_pb = ui.ui_factory.nested_progress_bar()
1605
1580
        source.lock_read()
1606
1581
        try:
 
1582
            pp = ProgressPhase("Pull phase", 2, top_pb)
 
1583
            pp.next_phase()
1607
1584
            old_revision_info = self.branch.last_revision_info()
1608
1585
            basis_tree = self.basis_tree()
1609
1586
            count = self.branch.pull(source, overwrite, stop_revision,
1611
1588
                                     local=local)
1612
1589
            new_revision_info = self.branch.last_revision_info()
1613
1590
            if new_revision_info != old_revision_info:
 
1591
                pp.next_phase()
1614
1592
                repository = self.branch.repository
 
1593
                pb = ui.ui_factory.nested_progress_bar()
1615
1594
                basis_tree.lock_read()
1616
1595
                try:
1617
1596
                    new_basis_tree = self.branch.basis_tree()
1620
1599
                                new_basis_tree,
1621
1600
                                basis_tree,
1622
1601
                                this_tree=self,
1623
 
                                pb=None,
 
1602
                                pb=pb,
1624
1603
                                change_reporter=change_reporter)
1625
 
                    basis_root_id = basis_tree.get_root_id()
1626
 
                    new_root_id = new_basis_tree.get_root_id()
1627
 
                    if basis_root_id != new_root_id:
1628
 
                        self.set_root_id(new_root_id)
 
1604
                    if (basis_tree.inventory.root is None and
 
1605
                        new_basis_tree.inventory.root is not None):
 
1606
                        self.set_root_id(new_basis_tree.get_root_id())
1629
1607
                finally:
 
1608
                    pb.finished()
1630
1609
                    basis_tree.unlock()
1631
1610
                # TODO - dedup parents list with things merged by pull ?
1632
1611
                # reuse the revisiontree we merged against to set the new
1645
1624
            return count
1646
1625
        finally:
1647
1626
            source.unlock()
 
1627
            top_pb.finished()
1648
1628
 
1649
1629
    @needs_write_lock
1650
1630
    def put_file_bytes_non_atomic(self, file_id, bytes):
1735
1715
        r"""Check whether the filename matches an ignore pattern.
1736
1716
 
1737
1717
        Patterns containing '/' or '\' need to match the whole path;
1738
 
        others match against only the last component.  Patterns starting
1739
 
        with '!' are ignore exceptions.  Exceptions take precedence
1740
 
        over regular patterns and cause the filename to not be ignored.
 
1718
        others match against only the last component.
1741
1719
 
1742
1720
        If the file is ignored, returns the pattern which caused it to
1743
1721
        be ignored, otherwise None.  So this can simply be used as a
1744
1722
        boolean if desired."""
1745
1723
        if getattr(self, '_ignoreglobster', None) is None:
1746
 
            self._ignoreglobster = globbing.ExceptionGlobster(self.get_ignore_list())
 
1724
            self._ignoreglobster = globbing.Globster(self.get_ignore_list())
1747
1725
        return self._ignoreglobster.match(filename)
1748
1726
 
1749
1727
    def kind(self, file_id):
1799
1777
            raise errors.ObjectNotLocked(self)
1800
1778
 
1801
1779
    def lock_read(self):
1802
 
        """Lock the tree for reading.
1803
 
 
1804
 
        This also locks the branch, and can be unlocked via self.unlock().
1805
 
 
1806
 
        :return: A bzrlib.lock.LogicalLockResult.
1807
 
        """
 
1780
        """See Branch.lock_read, and WorkingTree.unlock."""
1808
1781
        if not self.is_locked():
1809
1782
            self._reset_data()
1810
1783
        self.branch.lock_read()
1811
1784
        try:
1812
 
            self._control_files.lock_read()
1813
 
            return LogicalLockResult(self.unlock)
 
1785
            return self._control_files.lock_read()
1814
1786
        except:
1815
1787
            self.branch.unlock()
1816
1788
            raise
1817
1789
 
1818
1790
    def lock_tree_write(self):
1819
 
        """See MutableTree.lock_tree_write, and WorkingTree.unlock.
1820
 
 
1821
 
        :return: A bzrlib.lock.LogicalLockResult.
1822
 
        """
 
1791
        """See MutableTree.lock_tree_write, and WorkingTree.unlock."""
1823
1792
        if not self.is_locked():
1824
1793
            self._reset_data()
1825
1794
        self.branch.lock_read()
1826
1795
        try:
1827
 
            self._control_files.lock_write()
1828
 
            return LogicalLockResult(self.unlock)
 
1796
            return self._control_files.lock_write()
1829
1797
        except:
1830
1798
            self.branch.unlock()
1831
1799
            raise
1832
1800
 
1833
1801
    def lock_write(self):
1834
 
        """See MutableTree.lock_write, and WorkingTree.unlock.
1835
 
 
1836
 
        :return: A bzrlib.lock.LogicalLockResult.
1837
 
        """
 
1802
        """See MutableTree.lock_write, and WorkingTree.unlock."""
1838
1803
        if not self.is_locked():
1839
1804
            self._reset_data()
1840
1805
        self.branch.lock_write()
1841
1806
        try:
1842
 
            self._control_files.lock_write()
1843
 
            return LogicalLockResult(self.unlock)
 
1807
            return self._control_files.lock_write()
1844
1808
        except:
1845
1809
            self.branch.unlock()
1846
1810
            raise
1854
1818
    def _reset_data(self):
1855
1819
        """Reset transient data that cannot be revalidated."""
1856
1820
        self._inventory_is_modified = False
1857
 
        f = self._transport.get('inventory')
1858
 
        try:
1859
 
            result = self._deserialize(f)
1860
 
        finally:
1861
 
            f.close()
 
1821
        result = self._deserialize(self._transport.get('inventory'))
1862
1822
        self._set_inventory(result, dirty=False)
1863
1823
 
1864
1824
    @needs_tree_write_lock
1911
1871
            # revision_id is set. We must check for this full string, because a
1912
1872
            # root node id can legitimately look like 'revision_id' but cannot
1913
1873
            # contain a '"'.
1914
 
            xml = self.branch.repository._get_inventory_xml(new_revision)
 
1874
            xml = self.branch.repository.get_inventory_xml(new_revision)
1915
1875
            firstline = xml.split('\n', 1)[0]
1916
1876
            if (not 'revision_id="' in firstline or
1917
1877
                'format="7"' not in firstline):
1918
 
                inv = self.branch.repository._serializer.read_inventory_from_string(
1919
 
                    xml, new_revision)
 
1878
                inv = self.branch.repository.deserialise_inventory(
 
1879
                    new_revision, xml)
1920
1880
                xml = self._create_basis_xml_from_inventory(new_revision, inv)
1921
1881
            self._write_basis_inventory(xml)
1922
1882
        except (errors.NoSuchRevision, errors.RevisionNotPresent):
1940
1900
        # binary.
1941
1901
        if self._inventory_is_modified:
1942
1902
            raise errors.InventoryModified(self)
1943
 
        f = self._transport.get('inventory')
1944
 
        try:
1945
 
            result = self._deserialize(f)
1946
 
        finally:
1947
 
            f.close()
 
1903
        result = self._deserialize(self._transport.get('inventory'))
1948
1904
        self._set_inventory(result, dirty=False)
1949
1905
        return result
1950
1906
 
1965
1921
 
1966
1922
        new_files=set()
1967
1923
        unknown_nested_files=set()
1968
 
        if to_file is None:
1969
 
            to_file = sys.stdout
1970
1924
 
1971
1925
        def recurse_directory_to_add_files(directory):
1972
1926
            # Recurse directory and add all files
1973
1927
            # so we can check if they have changed.
1974
 
            for parent_info, file_infos in self.walkdirs(directory):
 
1928
            for parent_info, file_infos in\
 
1929
                self.walkdirs(directory):
1975
1930
                for relpath, basename, kind, lstat, fileid, kind in file_infos:
1976
1931
                    # Is it versioned or ignored?
1977
1932
                    if self.path2id(relpath) or self.is_ignored(relpath):
2012
1967
                            # ... but not ignored
2013
1968
                            has_changed_files = True
2014
1969
                            break
2015
 
                    elif (content_change and (kind[1] is not None) and
2016
 
                            osutils.is_inside_any(files, path[1])):
2017
 
                        # Versioned and changed, but not deleted, and still
2018
 
                        # in one of the dirs to be deleted.
 
1970
                    elif content_change and (kind[1] is not None):
 
1971
                        # Versioned and changed, but not deleted
2019
1972
                        has_changed_files = True
2020
1973
                        break
2021
1974
 
2043
1996
                        new_status = 'I'
2044
1997
                    else:
2045
1998
                        new_status = '?'
2046
 
                    # XXX: Really should be a more abstract reporter interface
2047
 
                    kind_ch = osutils.kind_marker(self.kind(fid))
2048
 
                    to_file.write(new_status + '       ' + f + kind_ch + '\n')
 
1999
                    textui.show_status(new_status, self.kind(fid), f,
 
2000
                                       to_file=to_file)
2049
2001
                # Unversion file
2050
2002
                inv_delta.append((f, None, fid, None))
2051
2003
                message = "removed %s" % (f,)
2074
2026
 
2075
2027
    @needs_tree_write_lock
2076
2028
    def revert(self, filenames=None, old_tree=None, backups=True,
2077
 
               pb=None, report_changes=False):
 
2029
               pb=DummyProgress(), report_changes=False):
2078
2030
        from bzrlib.conflicts import resolve
2079
2031
        if filenames == []:
2080
2032
            filenames = None
2202
2154
        """
2203
2155
        raise NotImplementedError(self.unlock)
2204
2156
 
2205
 
    _marker = object()
2206
 
 
2207
 
    def update(self, change_reporter=None, possible_transports=None,
2208
 
               revision=None, old_tip=_marker):
 
2157
    def update(self, change_reporter=None, possible_transports=None):
2209
2158
        """Update a working tree along its branch.
2210
2159
 
2211
2160
        This will update the branch if its bound too, which means we have
2229
2178
        - Merge current state -> basis tree of the master w.r.t. the old tree
2230
2179
          basis.
2231
2180
        - Do a 'normal' merge of the old branch basis if it is relevant.
2232
 
 
2233
 
        :param revision: The target revision to update to. Must be in the
2234
 
            revision history.
2235
 
        :param old_tip: If branch.update() has already been run, the value it
2236
 
            returned (old tip of the branch or None). _marker is used
2237
 
            otherwise.
2238
2181
        """
2239
2182
        if self.branch.get_bound_location() is not None:
2240
2183
            self.lock_write()
2241
 
            update_branch = (old_tip is self._marker)
 
2184
            update_branch = True
2242
2185
        else:
2243
2186
            self.lock_tree_write()
2244
2187
            update_branch = False
2246
2189
            if update_branch:
2247
2190
                old_tip = self.branch.update(possible_transports)
2248
2191
            else:
2249
 
                if old_tip is self._marker:
2250
 
                    old_tip = None
2251
 
            return self._update_tree(old_tip, change_reporter, revision)
 
2192
                old_tip = None
 
2193
            return self._update_tree(old_tip, change_reporter)
2252
2194
        finally:
2253
2195
            self.unlock()
2254
2196
 
2255
2197
    @needs_tree_write_lock
2256
 
    def _update_tree(self, old_tip=None, change_reporter=None, revision=None):
 
2198
    def _update_tree(self, old_tip=None, change_reporter=None):
2257
2199
        """Update a tree to the master branch.
2258
2200
 
2259
2201
        :param old_tip: if supplied, the previous tip revision the branch,
2269
2211
        # We MUST save it even if an error occurs, because otherwise the users
2270
2212
        # local work is unreferenced and will appear to have been lost.
2271
2213
        #
2272
 
        nb_conflicts = 0
 
2214
        result = 0
2273
2215
        try:
2274
2216
            last_rev = self.get_parent_ids()[0]
2275
2217
        except IndexError:
2276
2218
            last_rev = _mod_revision.NULL_REVISION
2277
 
        if revision is None:
2278
 
            revision = self.branch.last_revision()
2279
 
 
2280
 
        old_tip = old_tip or _mod_revision.NULL_REVISION
2281
 
 
2282
 
        if not _mod_revision.is_null(old_tip) and old_tip != last_rev:
2283
 
            # the branch we are bound to was updated
2284
 
            # merge those changes in first
2285
 
            base_tree  = self.basis_tree()
2286
 
            other_tree = self.branch.repository.revision_tree(old_tip)
2287
 
            nb_conflicts = merge.merge_inner(self.branch, other_tree,
2288
 
                                             base_tree, this_tree=self,
2289
 
                                             change_reporter=change_reporter)
2290
 
            if nb_conflicts:
2291
 
                self.add_parent_tree((old_tip, other_tree))
2292
 
                trace.note('Rerun update after fixing the conflicts.')
2293
 
                return nb_conflicts
2294
 
 
2295
 
        if last_rev != _mod_revision.ensure_null(revision):
2296
 
            # the working tree is up to date with the branch
2297
 
            # we can merge the specified revision from master
2298
 
            to_tree = self.branch.repository.revision_tree(revision)
2299
 
            to_root_id = to_tree.get_root_id()
2300
 
 
 
2219
        if last_rev != _mod_revision.ensure_null(self.branch.last_revision()):
 
2220
            # merge tree state up to new branch tip.
2301
2221
            basis = self.basis_tree()
2302
2222
            basis.lock_read()
2303
2223
            try:
2304
 
                if (basis.inventory.root is None
2305
 
                    or basis.inventory.root.file_id != to_root_id):
2306
 
                    self.set_root_id(to_root_id)
 
2224
                to_tree = self.branch.basis_tree()
 
2225
                if basis.inventory.root is None:
 
2226
                    self.set_root_id(to_tree.get_root_id())
2307
2227
                    self.flush()
 
2228
                result += merge.merge_inner(
 
2229
                                      self.branch,
 
2230
                                      to_tree,
 
2231
                                      basis,
 
2232
                                      this_tree=self,
 
2233
                                      change_reporter=change_reporter)
2308
2234
            finally:
2309
2235
                basis.unlock()
2310
 
 
2311
 
            # determine the branch point
2312
 
            graph = self.branch.repository.get_graph()
2313
 
            base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2314
 
                                                last_rev)
2315
 
            base_tree = self.branch.repository.revision_tree(base_rev_id)
2316
 
 
2317
 
            nb_conflicts = merge.merge_inner(self.branch, to_tree, base_tree,
2318
 
                                             this_tree=self,
2319
 
                                             change_reporter=change_reporter)
2320
 
            self.set_last_revision(revision)
2321
2236
            # TODO - dedup parents list with things merged by pull ?
2322
2237
            # reuse the tree we've updated to to set the basis:
2323
 
            parent_trees = [(revision, to_tree)]
 
2238
            parent_trees = [(self.branch.last_revision(), to_tree)]
2324
2239
            merges = self.get_parent_ids()[1:]
2325
2240
            # Ideally we ask the tree for the trees here, that way the working
2326
2241
            # tree can decide whether to give us the entire tree or give us a
2330
2245
            for parent in merges:
2331
2246
                parent_trees.append(
2332
2247
                    (parent, self.branch.repository.revision_tree(parent)))
2333
 
            if not _mod_revision.is_null(old_tip):
 
2248
            if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2334
2249
                parent_trees.append(
2335
2250
                    (old_tip, self.branch.repository.revision_tree(old_tip)))
2336
2251
            self.set_parent_trees(parent_trees)
2337
2252
            last_rev = parent_trees[0][0]
2338
 
        return nb_conflicts
 
2253
        else:
 
2254
            # the working tree had the same last-revision as the master
 
2255
            # branch did. We may still have pivot local work from the local
 
2256
            # branch into old_tip:
 
2257
            if (old_tip is not None and not _mod_revision.is_null(old_tip)):
 
2258
                self.add_parent_tree_id(old_tip)
 
2259
        if (old_tip is not None and not _mod_revision.is_null(old_tip)
 
2260
            and old_tip != last_rev):
 
2261
            # our last revision was not the prior branch last revision
 
2262
            # and we have converted that last revision to a pending merge.
 
2263
            # base is somewhere between the branch tip now
 
2264
            # and the now pending merge
 
2265
 
 
2266
            # Since we just modified the working tree and inventory, flush out
 
2267
            # the current state, before we modify it again.
 
2268
            # TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
 
2269
            #       requires it only because TreeTransform directly munges the
 
2270
            #       inventory and calls tree._write_inventory(). Ultimately we
 
2271
            #       should be able to remove this extra flush.
 
2272
            self.flush()
 
2273
            graph = self.branch.repository.get_graph()
 
2274
            base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
 
2275
                                                old_tip)
 
2276
            base_tree = self.branch.repository.revision_tree(base_rev_id)
 
2277
            other_tree = self.branch.repository.revision_tree(old_tip)
 
2278
            result += merge.merge_inner(
 
2279
                                  self.branch,
 
2280
                                  other_tree,
 
2281
                                  base_tree,
 
2282
                                  this_tree=self,
 
2283
                                  change_reporter=change_reporter)
 
2284
        return result
2339
2285
 
2340
2286
    def _write_hashcache_if_dirty(self):
2341
2287
        """Write out the hashcache if it is dirty."""
2582
2528
        return un_resolved, resolved
2583
2529
 
2584
2530
    @needs_read_lock
2585
 
    def _check(self, references):
2586
 
        """Check the tree for consistency.
2587
 
 
2588
 
        :param references: A dict with keys matching the items returned by
2589
 
            self._get_check_refs(), and values from looking those keys up in
2590
 
            the repository.
2591
 
        """
 
2531
    def _check(self):
2592
2532
        tree_basis = self.basis_tree()
2593
2533
        tree_basis.lock_read()
2594
2534
        try:
2595
 
            repo_basis = references[('trees', self.last_revision())]
 
2535
            repo_basis = self.branch.repository.revision_tree(
 
2536
                self.last_revision())
2596
2537
            if len(list(repo_basis.iter_changes(tree_basis))) > 0:
2597
2538
                raise errors.BzrCheckError(
2598
2539
                    "Mismatched basis inventory content.")
2611
2552
        """
2612
2553
        return
2613
2554
 
 
2555
    @needs_read_lock
2614
2556
    def _get_rules_searcher(self, default_searcher):
2615
2557
        """See Tree._get_rules_searcher."""
2616
2558
        if self._rules_searcher is None:
2643
2585
        if self._inventory is None:
2644
2586
            self.read_working_inventory()
2645
2587
 
2646
 
    def _get_check_refs(self):
2647
 
        """Return the references needed to perform a check of this tree."""
2648
 
        return [('trees', self.last_revision())]
2649
 
 
2650
2588
    def lock_tree_write(self):
2651
2589
        """See WorkingTree.lock_tree_write().
2652
2590
 
2653
2591
        In Format2 WorkingTrees we have a single lock for the branch and tree
2654
2592
        so lock_tree_write() degrades to lock_write().
2655
 
 
2656
 
        :return: An object with an unlock method which will release the lock
2657
 
            obtained.
2658
2593
        """
2659
2594
        self.branch.lock_write()
2660
2595
        try:
2661
 
            self._control_files.lock_write()
2662
 
            return self
 
2596
            return self._control_files.lock_write()
2663
2597
        except:
2664
2598
            self.branch.unlock()
2665
2599
            raise
2713
2647
                mode=self.bzrdir._get_file_mode())
2714
2648
            return True
2715
2649
 
2716
 
    def _get_check_refs(self):
2717
 
        """Return the references needed to perform a check of this tree."""
2718
 
        return [('trees', self.last_revision())]
2719
 
 
2720
2650
    @needs_tree_write_lock
2721
2651
    def set_conflicts(self, conflicts):
2722
2652
        self._put_rio('conflicts', conflicts.to_stanzas(),
2799
2729
        """Return the format for the working tree object in a_bzrdir."""
2800
2730
        try:
2801
2731
            transport = a_bzrdir.get_workingtree_transport(None)
2802
 
            format_string = transport.get_bytes("format")
 
2732
            format_string = transport.get("format").read()
2803
2733
            return klass._formats[format_string]
2804
2734
        except errors.NoSuchFile:
2805
2735
            raise errors.NoWorkingTree(base=transport.base)
3069
2999
        return self.get_format_string()
3070
3000
 
3071
3001
 
3072
 
__default_format = WorkingTreeFormat6()
 
3002
__default_format = WorkingTreeFormat4()
3073
3003
WorkingTreeFormat.register_format(__default_format)
 
3004
WorkingTreeFormat.register_format(WorkingTreeFormat6())
3074
3005
WorkingTreeFormat.register_format(WorkingTreeFormat5())
3075
 
WorkingTreeFormat.register_format(WorkingTreeFormat4())
3076
3006
WorkingTreeFormat.register_format(WorkingTreeFormat3())
3077
3007
WorkingTreeFormat.set_default_format(__default_format)
3078
3008
# formats which have no format string are not discoverable