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Viewing changes to bzrlib/workingtree_4.py

  • Committer: John Arbash Meinel
  • Date: 2008-07-11 21:41:24 UTC
  • mto: This revision was merged to the branch mainline in revision 3543.
  • Revision ID: john@arbash-meinel.com-20080711214124-qi09irlj7pd5cuzg
Shortcut the case when one revision is in the ancestry of the other.

At the cost of a heads() check, when one parent supersedes, we don't have to extract
the text for the other. Changes merge time from 3m37s => 3m21s. Using a
CachingParentsProvider would drop the time down to 3m11s.

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from bzrlib import symbol_versioning
70
70
from bzrlib.decorators import needs_read_lock, needs_write_lock
71
71
from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, entry_factory
 
72
from bzrlib.lockable_files import LockableFiles, TransportLock
 
73
from bzrlib.lockdir import LockDir
72
74
import bzrlib.mutabletree
73
75
from bzrlib.mutabletree import needs_tree_write_lock
74
76
from bzrlib.osutils import (
96
98
from bzrlib.workingtree import WorkingTree, WorkingTree3, WorkingTreeFormat3
97
99
 
98
100
 
99
 
class DirStateWorkingTree(WorkingTree3):
 
101
# This is the Windows equivalent of ENOTDIR
 
102
# It is defined in pywin32.winerror, but we don't want a strong dependency for
 
103
# just an error code.
 
104
ERROR_PATH_NOT_FOUND = 3
 
105
ERROR_DIRECTORY = 267
 
106
 
 
107
 
 
108
class WorkingTree4(WorkingTree3):
 
109
    """This is the Format 4 working tree.
 
110
 
 
111
    This differs from WorkingTree3 by:
 
112
     - Having a consolidated internal dirstate, stored in a
 
113
       randomly-accessible sorted file on disk.
 
114
     - Not having a regular inventory attribute.  One can be synthesized 
 
115
       on demand but this is expensive and should be avoided.
 
116
 
 
117
    This is new in bzr 0.15.
 
118
    """
 
119
 
100
120
    def __init__(self, basedir,
101
121
                 branch,
102
122
                 _control_files=None,
128
148
        #-------------
129
149
        self._setup_directory_is_tree_reference()
130
150
        self._detect_case_handling()
131
 
        self._rules_searcher = None
132
 
        #--- allow tests to select the dirstate iter_changes implementation
133
 
        self._iter_changes = dirstate._process_entry
134
151
 
135
152
    @needs_tree_write_lock
136
153
    def _add(self, files, ids, kinds):
391
408
                    return None
392
409
                else:
393
410
                    raise
394
 
        link_or_sha1 = dirstate.update_entry(state, entry, file_abspath,
395
 
            stat_value=stat_value)
 
411
        link_or_sha1 = state.update_entry(entry, file_abspath,
 
412
                                          stat_value=stat_value)
396
413
        if entry[1][0][0] == 'f':
397
 
            if link_or_sha1 is None:
398
 
                file_obj, statvalue = self.get_file_with_stat(file_id, path)
399
 
                try:
400
 
                    sha1 = osutils.sha_file(file_obj)
401
 
                finally:
402
 
                    file_obj.close()
403
 
                self._observed_sha1(file_id, path, (sha1, statvalue))
404
 
                return sha1
405
 
            else:
406
 
                return link_or_sha1
 
414
            return link_or_sha1
407
415
        return None
408
416
 
409
417
    def _get_inventory(self):
539
547
                # path is missing on disk.
540
548
                continue
541
549
 
542
 
    def _observed_sha1(self, file_id, path, (sha1, statvalue)):
543
 
        """See MutableTree._observed_sha1."""
544
 
        state = self.current_dirstate()
545
 
        entry = self._get_entry(file_id=file_id, path=path)
546
 
        state._observed_sha1(entry, sha1, statvalue)
547
 
 
548
550
    def kind(self, file_id):
549
551
        """Return the kind of a file.
550
552
 
883
885
        for tree in trees:
884
886
            if not (isinstance(tree, DirStateRevisionTree) and tree._revision_id in
885
887
                parents):
886
 
                return super(DirStateWorkingTree, self).paths2ids(paths,
887
 
                    trees, require_versioned)
 
888
                return super(WorkingTree4, self).paths2ids(paths, trees, require_versioned)
888
889
        search_indexes = [0] + [1 + parents.index(tree._revision_id) for tree in trees]
889
890
        # -- make all paths utf8 --
890
891
        paths_utf8 = set()
1108
1109
                real_trees.append((rev_id, tree))
1109
1110
            else:
1110
1111
                real_trees.append((rev_id,
1111
 
                    self.branch.repository.revision_tree(
1112
 
                        _mod_revision.NULL_REVISION)))
 
1112
                    self.branch.repository.revision_tree(None)))
1113
1113
                ghosts.append(rev_id)
1114
1114
            accepted_revisions.add(rev_id)
1115
1115
        dirstate.set_parent_trees(real_trees, ghosts=ghosts)
1281
1281
        self.flush()
1282
1282
 
1283
1283
 
1284
 
class WorkingTree4(DirStateWorkingTree):
1285
 
    """This is the Format 4 working tree.
1286
 
 
1287
 
    This differs from WorkingTree3 by:
1288
 
     - Having a consolidated internal dirstate, stored in a
1289
 
       randomly-accessible sorted file on disk.
1290
 
     - Not having a regular inventory attribute.  One can be synthesized 
1291
 
       on demand but this is expensive and should be avoided.
1292
 
 
1293
 
    This is new in bzr 0.15.
1294
 
    """
1295
 
 
1296
 
 
1297
 
class WorkingTree5(DirStateWorkingTree):
1298
 
    """This is the Format 5 working tree.
1299
 
 
1300
 
    This differs from WorkingTree4 by:
1301
 
     - Supporting content filtering.
1302
 
     - Supporting a current view that may mask the set of files in a tree
1303
 
       impacted by most user operations.
1304
 
 
1305
 
    This is new in bzr 1.11.
1306
 
    """
1307
 
 
1308
 
 
1309
 
class DirStateWorkingTreeFormat(WorkingTreeFormat3):
 
1284
class WorkingTreeFormat4(WorkingTreeFormat3):
 
1285
    """The first consolidated dirstate working tree format.
 
1286
 
 
1287
    This format:
 
1288
        - exists within a metadir controlling .bzr
 
1289
        - includes an explicit version marker for the workingtree control
 
1290
          files, separate from the BzrDir format
 
1291
        - modifies the hash cache format
 
1292
        - is new in bzr 0.15
 
1293
        - uses a LockDir to guard access to it.
 
1294
    """
 
1295
 
 
1296
    upgrade_recommended = False
 
1297
 
 
1298
    def get_format_string(self):
 
1299
        """See WorkingTreeFormat.get_format_string()."""
 
1300
        return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
 
1301
 
 
1302
    def get_format_description(self):
 
1303
        """See WorkingTreeFormat.get_format_description()."""
 
1304
        return "Working tree format 4"
 
1305
 
1310
1306
    def initialize(self, a_bzrdir, revision_id=None, from_branch=None,
1311
1307
                   accelerator_tree=None, hardlink=False):
1312
1308
        """See WorkingTreeFormat.initialize().
1342
1338
        state = dirstate.DirState.initialize(local_path)
1343
1339
        state.unlock()
1344
1340
        del state
1345
 
        wt = self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
 
1341
        wt = WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1346
1342
                         branch,
1347
1343
                         _format=self,
1348
1344
                         _bzrdir=a_bzrdir,
1350
1346
        wt._new_tree()
1351
1347
        wt.lock_tree_write()
1352
1348
        try:
1353
 
            self._init_custom_control_files(wt)
1354
1349
            if revision_id in (None, NULL_REVISION):
1355
1350
                if branch.repository.supports_rich_root():
1356
1351
                    wt._set_root_id(generate_ids.gen_root_id())
1394
1389
            wt.unlock()
1395
1390
        return wt
1396
1391
 
1397
 
    def _init_custom_control_files(self, wt):
1398
 
        """Subclasses with custom control files should override this method.
1399
 
        
1400
 
        The working tree and control files are locked for writing when this
1401
 
        method is called.
1402
 
        
1403
 
        :param wt: the WorkingTree object
1404
 
        """
1405
 
 
1406
1392
    def _open(self, a_bzrdir, control_files):
1407
1393
        """Open the tree itself.
1408
1394
 
1409
1395
        :param a_bzrdir: the dir for the tree.
1410
1396
        :param control_files: the control files for the tree.
1411
1397
        """
1412
 
        return self._tree_class(a_bzrdir.root_transport.local_abspath('.'),
 
1398
        return WorkingTree4(a_bzrdir.root_transport.local_abspath('.'),
1413
1399
                           branch=a_bzrdir.open_branch(),
1414
1400
                           _format=self,
1415
1401
                           _bzrdir=a_bzrdir,
1423
1409
    _matchingbzrdir = property(__get_matchingbzrdir)
1424
1410
 
1425
1411
 
1426
 
class WorkingTreeFormat4(DirStateWorkingTreeFormat):
1427
 
    """The first consolidated dirstate working tree format.
1428
 
 
1429
 
    This format:
1430
 
        - exists within a metadir controlling .bzr
1431
 
        - includes an explicit version marker for the workingtree control
1432
 
          files, separate from the BzrDir format
1433
 
        - modifies the hash cache format
1434
 
        - is new in bzr 0.15
1435
 
        - uses a LockDir to guard access to it.
1436
 
    """
1437
 
 
1438
 
    upgrade_recommended = False
1439
 
 
1440
 
    _tree_class = WorkingTree4
1441
 
 
1442
 
    def get_format_string(self):
1443
 
        """See WorkingTreeFormat.get_format_string()."""
1444
 
        return "Bazaar Working Tree Format 4 (bzr 0.15)\n"
1445
 
 
1446
 
    def get_format_description(self):
1447
 
        """See WorkingTreeFormat.get_format_description()."""
1448
 
        return "Working tree format 4"
1449
 
 
1450
 
 
1451
 
class WorkingTreeFormat5(DirStateWorkingTreeFormat):
1452
 
    """WorkingTree format supporting views.
1453
 
    """
1454
 
 
1455
 
    upgrade_recommended = False
1456
 
 
1457
 
    _tree_class = WorkingTree5
1458
 
 
1459
 
    def get_format_string(self):
1460
 
        """See WorkingTreeFormat.get_format_string()."""
1461
 
        return "Bazaar Working Tree Format 5 (bzr 1.11)\n"
1462
 
 
1463
 
    def get_format_description(self):
1464
 
        """See WorkingTreeFormat.get_format_description()."""
1465
 
        return "Working tree format 5"
1466
 
 
1467
 
    def _init_custom_control_files(self, wt):
1468
 
        """Subclasses with custom control files should override this method."""
1469
 
        wt._transport.put_bytes('views', '', mode=wt.bzrdir._get_file_mode())
1470
 
 
1471
 
    def supports_content_filtering(self):
1472
 
        return True
1473
 
 
1474
 
    def supports_views(self):
1475
 
        return True
1476
 
 
1477
 
 
1478
1412
class DirStateRevisionTree(Tree):
1479
1413
    """A revision tree pulling the inventory from a dirstate."""
1480
1414
 
1667
1601
    def get_file(self, file_id, path=None):
1668
1602
        return StringIO(self.get_file_text(file_id))
1669
1603
 
 
1604
    def get_file_lines(self, file_id):
 
1605
        return osutils.split_lines(self.get_file_text(file_id))
 
1606
 
1670
1607
    def get_file_size(self, file_id):
1671
1608
        """See Tree.get_file_size"""
1672
1609
        return self.inventory[file_id].text_size
1673
1610
 
1674
 
    def get_file_text(self, file_id, path=None):
 
1611
    def get_file_text(self, file_id):
1675
1612
        return list(self.iter_files_bytes([(file_id, None)]))[0][1]
1676
1613
 
1677
1614
    def get_reference_revision(self, file_id, path=None):
1859
1796
        target.set_parent_ids([revid])
1860
1797
        return target.basis_tree(), target
1861
1798
 
1862
 
    @classmethod
1863
 
    def make_source_parent_tree_python_dirstate(klass, test_case, source, target):
1864
 
        result = klass.make_source_parent_tree(source, target)
1865
 
        result[1]._iter_changes = dirstate.ProcessEntryPython
1866
 
        return result
1867
 
 
1868
 
    @classmethod
1869
 
    def make_source_parent_tree_compiled_dirstate(klass, test_case, source, target):
1870
 
        from bzrlib.tests.test__dirstate_helpers import \
1871
 
            CompiledDirstateHelpersFeature
1872
 
        if not CompiledDirstateHelpersFeature.available():
1873
 
            from bzrlib.tests import UnavailableFeature
1874
 
            raise UnavailableFeature(CompiledDirstateHelpersFeature)
1875
 
        from bzrlib._dirstate_helpers_c import ProcessEntryC
1876
 
        result = klass.make_source_parent_tree(source, target)
1877
 
        result[1]._iter_changes = ProcessEntryC
1878
 
        return result
1879
 
 
1880
1799
    _matching_from_tree_format = WorkingTreeFormat4()
1881
1800
    _matching_to_tree_format = WorkingTreeFormat4()
1882
 
 
1883
 
    @classmethod
1884
 
    def _test_mutable_trees_to_test_trees(klass, test_case, source, target):
1885
 
        # This method shouldn't be called, because we have python and C
1886
 
        # specific flavours.
1887
 
        raise NotImplementedError
 
1801
    _test_mutable_trees_to_test_trees = make_source_parent_tree
1888
1802
 
1889
1803
    def iter_changes(self, include_unchanged=False,
1890
1804
                      specific_files=None, pb=None, extra_trees=[],
1908
1822
            output. An unversioned file is defined as one with (False, False)
1909
1823
            for the versioned pair.
1910
1824
        """
 
1825
        utf8_decode = cache_utf8._utf8_decode
 
1826
        _minikind_to_kind = dirstate.DirState._minikind_to_kind
 
1827
        cmp_by_dirs = dirstate.cmp_by_dirs
1911
1828
        # NB: show_status depends on being able to pass in non-versioned files
1912
1829
        # and report them as unknown
1913
1830
        # TODO: handle extra trees in the dirstate.
1914
1831
        if (extra_trees or specific_files == []):
1915
1832
            # we can't fast-path these cases (yet)
1916
 
            return super(InterDirStateTree, self).iter_changes(
 
1833
            for f in super(InterDirStateTree, self).iter_changes(
1917
1834
                include_unchanged, specific_files, pb, extra_trees,
1918
 
                require_versioned, want_unversioned=want_unversioned)
 
1835
                require_versioned, want_unversioned=want_unversioned):
 
1836
                yield f
 
1837
            return
1919
1838
        parent_ids = self.target.get_parent_ids()
1920
1839
        if not (self.source._revision_id in parent_ids
1921
1840
                or self.source._revision_id == NULL_REVISION):
1938
1857
        if specific_files:
1939
1858
            specific_files_utf8 = set()
1940
1859
            for path in specific_files:
1941
 
                # Note, if there are many specific files, using cache_utf8
1942
 
                # would be good here.
1943
1860
                specific_files_utf8.add(path.encode('utf8'))
1944
1861
            specific_files = specific_files_utf8
1945
1862
        else:
1946
1863
            specific_files = set([''])
1947
1864
        # -- specific_files is now a utf8 path set --
1948
 
        search_specific_files = set()
1949
1865
        # -- get the state object and prepare it.
1950
1866
        state = self.target.current_dirstate()
1951
1867
        state._read_dirblocks_if_needed()
 
1868
        def _entries_for_path(path):
 
1869
            """Return a list with all the entries that match path for all ids.
 
1870
            """
 
1871
            dirname, basename = os.path.split(path)
 
1872
            key = (dirname, basename, '')
 
1873
            block_index, present = state._find_block_index_from_key(key)
 
1874
            if not present:
 
1875
                # the block which should contain path is absent.
 
1876
                return []
 
1877
            result = []
 
1878
            block = state._dirblocks[block_index][1]
 
1879
            entry_index, _ = state._find_entry_index(key, block)
 
1880
            # we may need to look at multiple entries at this path: walk while the specific_files match.
 
1881
            while (entry_index < len(block) and
 
1882
                block[entry_index][0][0:2] == key[0:2]):
 
1883
                result.append(block[entry_index])
 
1884
                entry_index += 1
 
1885
            return result
1952
1886
        if require_versioned:
1953
1887
            # -- check all supplied paths are versioned in a search tree. --
1954
1888
            all_versioned = True
1955
1889
            for path in specific_files:
1956
 
                path_entries = state._entries_for_path(path)
 
1890
                path_entries = _entries_for_path(path)
1957
1891
                if not path_entries:
1958
1892
                    # this specified path is not present at all: error
1959
1893
                    all_versioned = False
1975
1909
            if not all_versioned:
1976
1910
                raise errors.PathsNotVersionedError(specific_files)
1977
1911
        # -- remove redundancy in supplied specific_files to prevent over-scanning --
 
1912
        search_specific_files = set()
1978
1913
        for path in specific_files:
1979
1914
            other_specific_files = specific_files.difference(set([path]))
1980
1915
            if not osutils.is_inside_any(other_specific_files, path):
1981
1916
                # this is a top level path, we must check it.
1982
1917
                search_specific_files.add(path)
 
1918
        # sketch: 
 
1919
        # compare source_index and target_index at or under each element of search_specific_files.
 
1920
        # follow the following comparison table. Note that we only want to do diff operations when
 
1921
        # the target is fdl because thats when the walkdirs logic will have exposed the pathinfo 
 
1922
        # for the target.
 
1923
        # cases:
 
1924
        # 
 
1925
        # Source | Target | disk | action
 
1926
        #   r    | fdlt   |      | add source to search, add id path move and perform
 
1927
        #        |        |      | diff check on source-target
 
1928
        #   r    | fdlt   |  a   | dangling file that was present in the basis. 
 
1929
        #        |        |      | ???
 
1930
        #   r    |  a     |      | add source to search
 
1931
        #   r    |  a     |  a   | 
 
1932
        #   r    |  r     |      | this path is present in a non-examined tree, skip.
 
1933
        #   r    |  r     |  a   | this path is present in a non-examined tree, skip.
 
1934
        #   a    | fdlt   |      | add new id
 
1935
        #   a    | fdlt   |  a   | dangling locally added file, skip
 
1936
        #   a    |  a     |      | not present in either tree, skip
 
1937
        #   a    |  a     |  a   | not present in any tree, skip
 
1938
        #   a    |  r     |      | not present in either tree at this path, skip as it
 
1939
        #        |        |      | may not be selected by the users list of paths.
 
1940
        #   a    |  r     |  a   | not present in either tree at this path, skip as it
 
1941
        #        |        |      | may not be selected by the users list of paths.
 
1942
        #  fdlt  | fdlt   |      | content in both: diff them
 
1943
        #  fdlt  | fdlt   |  a   | deleted locally, but not unversioned - show as deleted ?
 
1944
        #  fdlt  |  a     |      | unversioned: output deleted id for now
 
1945
        #  fdlt  |  a     |  a   | unversioned and deleted: output deleted id
 
1946
        #  fdlt  |  r     |      | relocated in this tree, so add target to search.
 
1947
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
 
1948
        #        |        |      | this id at the other path.
 
1949
        #  fdlt  |  r     |  a   | relocated in this tree, so add target to search.
 
1950
        #        |        |      | Dont diff, we will see an r,fd; pair when we reach
 
1951
        #        |        |      | this id at the other path.
 
1952
 
 
1953
        # for all search_indexs in each path at or under each element of
 
1954
        # search_specific_files, if the detail is relocated: add the id, and add the
 
1955
        # relocated path as one to search if its not searched already. If the
 
1956
        # detail is not relocated, add the id.
 
1957
        searched_specific_files = set()
 
1958
        NULL_PARENT_DETAILS = dirstate.DirState.NULL_PARENT_DETAILS
 
1959
        # Using a list so that we can access the values and change them in
 
1960
        # nested scope. Each one is [path, file_id, entry]
 
1961
        last_source_parent = [None, None]
 
1962
        last_target_parent = [None, None]
1983
1963
 
1984
1964
        use_filesystem_for_exec = (sys.platform != 'win32')
1985
 
        iter_changes = self.target._iter_changes(include_unchanged,
1986
 
            use_filesystem_for_exec, search_specific_files, state,
1987
 
            source_index, target_index, want_unversioned, self.target)
1988
 
        return iter_changes.iter_changes()
 
1965
 
 
1966
        # Just a sentry, so that _process_entry can say that this
 
1967
        # record is handled, but isn't interesting to process (unchanged)
 
1968
        uninteresting = object()
 
1969
 
 
1970
 
 
1971
        old_dirname_to_file_id = {}
 
1972
        new_dirname_to_file_id = {}
 
1973
        # TODO: jam 20070516 - Avoid the _get_entry lookup overhead by
 
1974
        #       keeping a cache of directories that we have seen.
 
1975
 
 
1976
        def _process_entry(entry, path_info):
 
1977
            """Compare an entry and real disk to generate delta information.
 
1978
 
 
1979
            :param path_info: top_relpath, basename, kind, lstat, abspath for
 
1980
                the path of entry. If None, then the path is considered absent.
 
1981
                (Perhaps we should pass in a concrete entry for this ?)
 
1982
                Basename is returned as a utf8 string because we expect this
 
1983
                tuple will be ignored, and don't want to take the time to
 
1984
                decode.
 
1985
            :return: None if these don't match
 
1986
                     A tuple of information about the change, or
 
1987
                     the object 'uninteresting' if these match, but are
 
1988
                     basically identical.
 
1989
            """
 
1990
            if source_index is None:
 
1991
                source_details = NULL_PARENT_DETAILS
 
1992
            else:
 
1993
                source_details = entry[1][source_index]
 
1994
            target_details = entry[1][target_index]
 
1995
            target_minikind = target_details[0]
 
1996
            if path_info is not None and target_minikind in 'fdlt':
 
1997
                if not (target_index == 0):
 
1998
                    raise AssertionError()
 
1999
                link_or_sha1 = state.update_entry(entry, abspath=path_info[4],
 
2000
                                                  stat_value=path_info[3])
 
2001
                # The entry may have been modified by update_entry
 
2002
                target_details = entry[1][target_index]
 
2003
                target_minikind = target_details[0]
 
2004
            else:
 
2005
                link_or_sha1 = None
 
2006
            file_id = entry[0][2]
 
2007
            source_minikind = source_details[0]
 
2008
            if source_minikind in 'fdltr' and target_minikind in 'fdlt':
 
2009
                # claimed content in both: diff
 
2010
                #   r    | fdlt   |      | add source to search, add id path move and perform
 
2011
                #        |        |      | diff check on source-target
 
2012
                #   r    | fdlt   |  a   | dangling file that was present in the basis.
 
2013
                #        |        |      | ???
 
2014
                if source_minikind in 'r':
 
2015
                    # add the source to the search path to find any children it
 
2016
                    # has.  TODO ? : only add if it is a container ?
 
2017
                    if not osutils.is_inside_any(searched_specific_files,
 
2018
                                                 source_details[1]):
 
2019
                        search_specific_files.add(source_details[1])
 
2020
                    # generate the old path; this is needed for stating later
 
2021
                    # as well.
 
2022
                    old_path = source_details[1]
 
2023
                    old_dirname, old_basename = os.path.split(old_path)
 
2024
                    path = pathjoin(entry[0][0], entry[0][1])
 
2025
                    old_entry = state._get_entry(source_index,
 
2026
                                                 path_utf8=old_path)
 
2027
                    # update the source details variable to be the real
 
2028
                    # location.
 
2029
                    if old_entry == (None, None):
 
2030
                        raise errors.CorruptDirstate(state._filename,
 
2031
                            "entry '%s/%s' is considered renamed from %r"
 
2032
                            " but source does not exist\n"
 
2033
                            "entry: %s" % (entry[0][0], entry[0][1], old_path, entry))
 
2034
                    source_details = old_entry[1][source_index]
 
2035
                    source_minikind = source_details[0]
 
2036
                else:
 
2037
                    old_dirname = entry[0][0]
 
2038
                    old_basename = entry[0][1]
 
2039
                    old_path = path = None
 
2040
                if path_info is None:
 
2041
                    # the file is missing on disk, show as removed.
 
2042
                    content_change = True
 
2043
                    target_kind = None
 
2044
                    target_exec = False
 
2045
                else:
 
2046
                    # source and target are both versioned and disk file is present.
 
2047
                    target_kind = path_info[2]
 
2048
                    if target_kind == 'directory':
 
2049
                        if path is None:
 
2050
                            old_path = path = pathjoin(old_dirname, old_basename)
 
2051
                        new_dirname_to_file_id[path] = file_id
 
2052
                        if source_minikind != 'd':
 
2053
                            content_change = True
 
2054
                        else:
 
2055
                            # directories have no fingerprint
 
2056
                            content_change = False
 
2057
                        target_exec = False
 
2058
                    elif target_kind == 'file':
 
2059
                        if source_minikind != 'f':
 
2060
                            content_change = True
 
2061
                        else:
 
2062
                            # We could check the size, but we already have the
 
2063
                            # sha1 hash.
 
2064
                            content_change = (link_or_sha1 != source_details[1])
 
2065
                        # Target details is updated at update_entry time
 
2066
                        if use_filesystem_for_exec:
 
2067
                            # We don't need S_ISREG here, because we are sure
 
2068
                            # we are dealing with a file.
 
2069
                            target_exec = bool(stat.S_IEXEC & path_info[3].st_mode)
 
2070
                        else:
 
2071
                            target_exec = target_details[3]
 
2072
                    elif target_kind == 'symlink':
 
2073
                        if source_minikind != 'l':
 
2074
                            content_change = True
 
2075
                        else:
 
2076
                            content_change = (link_or_sha1 != source_details[1])
 
2077
                        target_exec = False
 
2078
                    elif target_kind == 'tree-reference':
 
2079
                        if source_minikind != 't':
 
2080
                            content_change = True
 
2081
                        else:
 
2082
                            content_change = False
 
2083
                        target_exec = False
 
2084
                    else:
 
2085
                        raise Exception, "unknown kind %s" % path_info[2]
 
2086
                if source_minikind == 'd':
 
2087
                    if path is None:
 
2088
                        old_path = path = pathjoin(old_dirname, old_basename)
 
2089
                    old_dirname_to_file_id[old_path] = file_id
 
2090
                # parent id is the entry for the path in the target tree
 
2091
                if old_dirname == last_source_parent[0]:
 
2092
                    source_parent_id = last_source_parent[1]
 
2093
                else:
 
2094
                    try:
 
2095
                        source_parent_id = old_dirname_to_file_id[old_dirname]
 
2096
                    except KeyError:
 
2097
                        source_parent_entry = state._get_entry(source_index,
 
2098
                                                               path_utf8=old_dirname)
 
2099
                        source_parent_id = source_parent_entry[0][2]
 
2100
                    if source_parent_id == entry[0][2]:
 
2101
                        # This is the root, so the parent is None
 
2102
                        source_parent_id = None
 
2103
                    else:
 
2104
                        last_source_parent[0] = old_dirname
 
2105
                        last_source_parent[1] = source_parent_id
 
2106
                new_dirname = entry[0][0]
 
2107
                if new_dirname == last_target_parent[0]:
 
2108
                    target_parent_id = last_target_parent[1]
 
2109
                else:
 
2110
                    try:
 
2111
                        target_parent_id = new_dirname_to_file_id[new_dirname]
 
2112
                    except KeyError:
 
2113
                        # TODO: We don't always need to do the lookup, because the
 
2114
                        #       parent entry will be the same as the source entry.
 
2115
                        target_parent_entry = state._get_entry(target_index,
 
2116
                                                               path_utf8=new_dirname)
 
2117
                        if target_parent_entry == (None, None):
 
2118
                            raise AssertionError(
 
2119
                                "Could not find target parent in wt: %s\nparent of: %s"
 
2120
                                % (new_dirname, entry))
 
2121
                        target_parent_id = target_parent_entry[0][2]
 
2122
                    if target_parent_id == entry[0][2]:
 
2123
                        # This is the root, so the parent is None
 
2124
                        target_parent_id = None
 
2125
                    else:
 
2126
                        last_target_parent[0] = new_dirname
 
2127
                        last_target_parent[1] = target_parent_id
 
2128
 
 
2129
                source_exec = source_details[3]
 
2130
                if (include_unchanged
 
2131
                    or content_change
 
2132
                    or source_parent_id != target_parent_id
 
2133
                    or old_basename != entry[0][1]
 
2134
                    or source_exec != target_exec
 
2135
                    ):
 
2136
                    if old_path is None:
 
2137
                        old_path = path = pathjoin(old_dirname, old_basename)
 
2138
                        old_path_u = utf8_decode(old_path)[0]
 
2139
                        path_u = old_path_u
 
2140
                    else:
 
2141
                        old_path_u = utf8_decode(old_path)[0]
 
2142
                        if old_path == path:
 
2143
                            path_u = old_path_u
 
2144
                        else:
 
2145
                            path_u = utf8_decode(path)[0]
 
2146
                    source_kind = _minikind_to_kind[source_minikind]
 
2147
                    return (entry[0][2],
 
2148
                           (old_path_u, path_u),
 
2149
                           content_change,
 
2150
                           (True, True),
 
2151
                           (source_parent_id, target_parent_id),
 
2152
                           (utf8_decode(old_basename)[0], utf8_decode(entry[0][1])[0]),
 
2153
                           (source_kind, target_kind),
 
2154
                           (source_exec, target_exec))
 
2155
                else:
 
2156
                    return uninteresting
 
2157
            elif source_minikind in 'a' and target_minikind in 'fdlt':
 
2158
                # looks like a new file
 
2159
                if path_info is not None:
 
2160
                    path = pathjoin(entry[0][0], entry[0][1])
 
2161
                    # parent id is the entry for the path in the target tree
 
2162
                    # TODO: these are the same for an entire directory: cache em.
 
2163
                    parent_id = state._get_entry(target_index,
 
2164
                                                 path_utf8=entry[0][0])[0][2]
 
2165
                    if parent_id == entry[0][2]:
 
2166
                        parent_id = None
 
2167
                    if use_filesystem_for_exec:
 
2168
                        # We need S_ISREG here, because we aren't sure if this
 
2169
                        # is a file or not.
 
2170
                        target_exec = bool(
 
2171
                            stat.S_ISREG(path_info[3].st_mode)
 
2172
                            and stat.S_IEXEC & path_info[3].st_mode)
 
2173
                    else:
 
2174
                        target_exec = target_details[3]
 
2175
                    return (entry[0][2],
 
2176
                           (None, utf8_decode(path)[0]),
 
2177
                           True,
 
2178
                           (False, True),
 
2179
                           (None, parent_id),
 
2180
                           (None, utf8_decode(entry[0][1])[0]),
 
2181
                           (None, path_info[2]),
 
2182
                           (None, target_exec))
 
2183
                else:
 
2184
                    # but its not on disk: we deliberately treat this as just
 
2185
                    # never-present. (Why ?! - RBC 20070224)
 
2186
                    pass
 
2187
            elif source_minikind in 'fdlt' and target_minikind in 'a':
 
2188
                # unversioned, possibly, or possibly not deleted: we dont care.
 
2189
                # if its still on disk, *and* theres no other entry at this
 
2190
                # path [we dont know this in this routine at the moment -
 
2191
                # perhaps we should change this - then it would be an unknown.
 
2192
                old_path = pathjoin(entry[0][0], entry[0][1])
 
2193
                # parent id is the entry for the path in the target tree
 
2194
                parent_id = state._get_entry(source_index, path_utf8=entry[0][0])[0][2]
 
2195
                if parent_id == entry[0][2]:
 
2196
                    parent_id = None
 
2197
                return (entry[0][2],
 
2198
                       (utf8_decode(old_path)[0], None),
 
2199
                       True,
 
2200
                       (True, False),
 
2201
                       (parent_id, None),
 
2202
                       (utf8_decode(entry[0][1])[0], None),
 
2203
                       (_minikind_to_kind[source_minikind], None),
 
2204
                       (source_details[3], None))
 
2205
            elif source_minikind in 'fdlt' and target_minikind in 'r':
 
2206
                # a rename; could be a true rename, or a rename inherited from
 
2207
                # a renamed parent. TODO: handle this efficiently. Its not
 
2208
                # common case to rename dirs though, so a correct but slow
 
2209
                # implementation will do.
 
2210
                if not osutils.is_inside_any(searched_specific_files, target_details[1]):
 
2211
                    search_specific_files.add(target_details[1])
 
2212
            elif source_minikind in 'ra' and target_minikind in 'ra':
 
2213
                # neither of the selected trees contain this file,
 
2214
                # so skip over it. This is not currently directly tested, but
 
2215
                # is indirectly via test_too_much.TestCommands.test_conflicts.
 
2216
                pass
 
2217
            else:
 
2218
                raise AssertionError("don't know how to compare "
 
2219
                    "source_minikind=%r, target_minikind=%r"
 
2220
                    % (source_minikind, target_minikind))
 
2221
                ## import pdb;pdb.set_trace()
 
2222
            return None
 
2223
 
 
2224
        while search_specific_files:
 
2225
            # TODO: the pending list should be lexically sorted?  the
 
2226
            # interface doesn't require it.
 
2227
            current_root = search_specific_files.pop()
 
2228
            current_root_unicode = current_root.decode('utf8')
 
2229
            searched_specific_files.add(current_root)
 
2230
            # process the entries for this containing directory: the rest will be
 
2231
            # found by their parents recursively.
 
2232
            root_entries = _entries_for_path(current_root)
 
2233
            root_abspath = self.target.abspath(current_root_unicode)
 
2234
            try:
 
2235
                root_stat = os.lstat(root_abspath)
 
2236
            except OSError, e:
 
2237
                if e.errno == errno.ENOENT:
 
2238
                    # the path does not exist: let _process_entry know that.
 
2239
                    root_dir_info = None
 
2240
                else:
 
2241
                    # some other random error: hand it up.
 
2242
                    raise
 
2243
            else:
 
2244
                root_dir_info = ('', current_root,
 
2245
                    osutils.file_kind_from_stat_mode(root_stat.st_mode), root_stat,
 
2246
                    root_abspath)
 
2247
                if root_dir_info[2] == 'directory':
 
2248
                    if self.target._directory_is_tree_reference(
 
2249
                        current_root.decode('utf8')):
 
2250
                        root_dir_info = root_dir_info[:2] + \
 
2251
                            ('tree-reference',) + root_dir_info[3:]
 
2252
 
 
2253
            if not root_entries and not root_dir_info:
 
2254
                # this specified path is not present at all, skip it.
 
2255
                continue
 
2256
            path_handled = False
 
2257
            for entry in root_entries:
 
2258
                result = _process_entry(entry, root_dir_info)
 
2259
                if result is not None:
 
2260
                    path_handled = True
 
2261
                    if result is not uninteresting:
 
2262
                        yield result
 
2263
            if want_unversioned and not path_handled and root_dir_info:
 
2264
                new_executable = bool(
 
2265
                    stat.S_ISREG(root_dir_info[3].st_mode)
 
2266
                    and stat.S_IEXEC & root_dir_info[3].st_mode)
 
2267
                yield (None,
 
2268
                       (None, current_root_unicode),
 
2269
                       True,
 
2270
                       (False, False),
 
2271
                       (None, None),
 
2272
                       (None, splitpath(current_root_unicode)[-1]),
 
2273
                       (None, root_dir_info[2]),
 
2274
                       (None, new_executable)
 
2275
                      )
 
2276
            initial_key = (current_root, '', '')
 
2277
            block_index, _ = state._find_block_index_from_key(initial_key)
 
2278
            if block_index == 0:
 
2279
                # we have processed the total root already, but because the
 
2280
                # initial key matched it we should skip it here.
 
2281
                block_index +=1
 
2282
            if root_dir_info and root_dir_info[2] == 'tree-reference':
 
2283
                current_dir_info = None
 
2284
            else:
 
2285
                dir_iterator = osutils._walkdirs_utf8(root_abspath, prefix=current_root)
 
2286
                try:
 
2287
                    current_dir_info = dir_iterator.next()
 
2288
                except OSError, e:
 
2289
                    # on win32, python2.4 has e.errno == ERROR_DIRECTORY, but
 
2290
                    # python 2.5 has e.errno == EINVAL,
 
2291
                    #            and e.winerror == ERROR_DIRECTORY
 
2292
                    e_winerror = getattr(e, 'winerror', None)
 
2293
                    win_errors = (ERROR_DIRECTORY, ERROR_PATH_NOT_FOUND)
 
2294
                    # there may be directories in the inventory even though
 
2295
                    # this path is not a file on disk: so mark it as end of
 
2296
                    # iterator
 
2297
                    if e.errno in (errno.ENOENT, errno.ENOTDIR, errno.EINVAL):
 
2298
                        current_dir_info = None
 
2299
                    elif (sys.platform == 'win32'
 
2300
                          and (e.errno in win_errors
 
2301
                               or e_winerror in win_errors)):
 
2302
                        current_dir_info = None
 
2303
                    else:
 
2304
                        raise
 
2305
                else:
 
2306
                    if current_dir_info[0][0] == '':
 
2307
                        # remove .bzr from iteration
 
2308
                        bzr_index = bisect_left(current_dir_info[1], ('.bzr',))
 
2309
                        if current_dir_info[1][bzr_index][0] != '.bzr':
 
2310
                            raise AssertionError()
 
2311
                        del current_dir_info[1][bzr_index]
 
2312
            # walk until both the directory listing and the versioned metadata
 
2313
            # are exhausted. 
 
2314
            if (block_index < len(state._dirblocks) and
 
2315
                osutils.is_inside(current_root, state._dirblocks[block_index][0])):
 
2316
                current_block = state._dirblocks[block_index]
 
2317
            else:
 
2318
                current_block = None
 
2319
            while (current_dir_info is not None or
 
2320
                   current_block is not None):
 
2321
                if (current_dir_info and current_block
 
2322
                    and current_dir_info[0][0] != current_block[0]):
 
2323
                    if cmp_by_dirs(current_dir_info[0][0], current_block[0]) < 0:
 
2324
                        # filesystem data refers to paths not covered by the dirblock.
 
2325
                        # this has two possibilities:
 
2326
                        # A) it is versioned but empty, so there is no block for it
 
2327
                        # B) it is not versioned.
 
2328
 
 
2329
                        # if (A) then we need to recurse into it to check for
 
2330
                        # new unknown files or directories.
 
2331
                        # if (B) then we should ignore it, because we don't
 
2332
                        # recurse into unknown directories.
 
2333
                        path_index = 0
 
2334
                        while path_index < len(current_dir_info[1]):
 
2335
                                current_path_info = current_dir_info[1][path_index]
 
2336
                                if want_unversioned:
 
2337
                                    if current_path_info[2] == 'directory':
 
2338
                                        if self.target._directory_is_tree_reference(
 
2339
                                            current_path_info[0].decode('utf8')):
 
2340
                                            current_path_info = current_path_info[:2] + \
 
2341
                                                ('tree-reference',) + current_path_info[3:]
 
2342
                                    new_executable = bool(
 
2343
                                        stat.S_ISREG(current_path_info[3].st_mode)
 
2344
                                        and stat.S_IEXEC & current_path_info[3].st_mode)
 
2345
                                    yield (None,
 
2346
                                        (None, utf8_decode(current_path_info[0])[0]),
 
2347
                                        True,
 
2348
                                        (False, False),
 
2349
                                        (None, None),
 
2350
                                        (None, utf8_decode(current_path_info[1])[0]),
 
2351
                                        (None, current_path_info[2]),
 
2352
                                        (None, new_executable))
 
2353
                                # dont descend into this unversioned path if it is
 
2354
                                # a dir
 
2355
                                if current_path_info[2] in ('directory',
 
2356
                                                            'tree-reference'):
 
2357
                                    del current_dir_info[1][path_index]
 
2358
                                    path_index -= 1
 
2359
                                path_index += 1
 
2360
 
 
2361
                        # This dir info has been handled, go to the next
 
2362
                        try:
 
2363
                            current_dir_info = dir_iterator.next()
 
2364
                        except StopIteration:
 
2365
                            current_dir_info = None
 
2366
                    else:
 
2367
                        # We have a dirblock entry for this location, but there
 
2368
                        # is no filesystem path for this. This is most likely
 
2369
                        # because a directory was removed from the disk.
 
2370
                        # We don't have to report the missing directory,
 
2371
                        # because that should have already been handled, but we
 
2372
                        # need to handle all of the files that are contained
 
2373
                        # within.
 
2374
                        for current_entry in current_block[1]:
 
2375
                            # entry referring to file not present on disk.
 
2376
                            # advance the entry only, after processing.
 
2377
                            result = _process_entry(current_entry, None)
 
2378
                            if result is not None:
 
2379
                                if result is not uninteresting:
 
2380
                                    yield result
 
2381
                        block_index +=1
 
2382
                        if (block_index < len(state._dirblocks) and
 
2383
                            osutils.is_inside(current_root,
 
2384
                                              state._dirblocks[block_index][0])):
 
2385
                            current_block = state._dirblocks[block_index]
 
2386
                        else:
 
2387
                            current_block = None
 
2388
                    continue
 
2389
                entry_index = 0
 
2390
                if current_block and entry_index < len(current_block[1]):
 
2391
                    current_entry = current_block[1][entry_index]
 
2392
                else:
 
2393
                    current_entry = None
 
2394
                advance_entry = True
 
2395
                path_index = 0
 
2396
                if current_dir_info and path_index < len(current_dir_info[1]):
 
2397
                    current_path_info = current_dir_info[1][path_index]
 
2398
                    if current_path_info[2] == 'directory':
 
2399
                        if self.target._directory_is_tree_reference(
 
2400
                            current_path_info[0].decode('utf8')):
 
2401
                            current_path_info = current_path_info[:2] + \
 
2402
                                ('tree-reference',) + current_path_info[3:]
 
2403
                else:
 
2404
                    current_path_info = None
 
2405
                advance_path = True
 
2406
                path_handled = False
 
2407
                while (current_entry is not None or
 
2408
                    current_path_info is not None):
 
2409
                    if current_entry is None:
 
2410
                        # the check for path_handled when the path is adnvaced
 
2411
                        # will yield this path if needed.
 
2412
                        pass
 
2413
                    elif current_path_info is None:
 
2414
                        # no path is fine: the per entry code will handle it.
 
2415
                        result = _process_entry(current_entry, current_path_info)
 
2416
                        if result is not None:
 
2417
                            if result is not uninteresting:
 
2418
                                yield result
 
2419
                    elif (current_entry[0][1] != current_path_info[1]
 
2420
                          or current_entry[1][target_index][0] in 'ar'):
 
2421
                        # The current path on disk doesn't match the dirblock
 
2422
                        # record. Either the dirblock is marked as absent, or
 
2423
                        # the file on disk is not present at all in the
 
2424
                        # dirblock. Either way, report about the dirblock
 
2425
                        # entry, and let other code handle the filesystem one.
 
2426
 
 
2427
                        # Compare the basename for these files to determine
 
2428
                        # which comes first
 
2429
                        if current_path_info[1] < current_entry[0][1]:
 
2430
                            # extra file on disk: pass for now, but only
 
2431
                            # increment the path, not the entry
 
2432
                            advance_entry = False
 
2433
                        else:
 
2434
                            # entry referring to file not present on disk.
 
2435
                            # advance the entry only, after processing.
 
2436
                            result = _process_entry(current_entry, None)
 
2437
                            if result is not None:
 
2438
                                if result is not uninteresting:
 
2439
                                    yield result
 
2440
                            advance_path = False
 
2441
                    else:
 
2442
                        result = _process_entry(current_entry, current_path_info)
 
2443
                        if result is not None:
 
2444
                            path_handled = True
 
2445
                            if result is not uninteresting:
 
2446
                                yield result
 
2447
                    if advance_entry and current_entry is not None:
 
2448
                        entry_index += 1
 
2449
                        if entry_index < len(current_block[1]):
 
2450
                            current_entry = current_block[1][entry_index]
 
2451
                        else:
 
2452
                            current_entry = None
 
2453
                    else:
 
2454
                        advance_entry = True # reset the advance flaga
 
2455
                    if advance_path and current_path_info is not None:
 
2456
                        if not path_handled:
 
2457
                            # unversioned in all regards
 
2458
                            if want_unversioned:
 
2459
                                new_executable = bool(
 
2460
                                    stat.S_ISREG(current_path_info[3].st_mode)
 
2461
                                    and stat.S_IEXEC & current_path_info[3].st_mode)
 
2462
                                yield (None,
 
2463
                                    (None, utf8_decode(current_path_info[0])[0]),
 
2464
                                    True,
 
2465
                                    (False, False),
 
2466
                                    (None, None),
 
2467
                                    (None, utf8_decode(current_path_info[1])[0]),
 
2468
                                    (None, current_path_info[2]),
 
2469
                                    (None, new_executable))
 
2470
                            # dont descend into this unversioned path if it is
 
2471
                            # a dir
 
2472
                            if current_path_info[2] in ('directory'):
 
2473
                                del current_dir_info[1][path_index]
 
2474
                                path_index -= 1
 
2475
                        # dont descend the disk iterator into any tree 
 
2476
                        # paths.
 
2477
                        if current_path_info[2] == 'tree-reference':
 
2478
                            del current_dir_info[1][path_index]
 
2479
                            path_index -= 1
 
2480
                        path_index += 1
 
2481
                        if path_index < len(current_dir_info[1]):
 
2482
                            current_path_info = current_dir_info[1][path_index]
 
2483
                            if current_path_info[2] == 'directory':
 
2484
                                if self.target._directory_is_tree_reference(
 
2485
                                    current_path_info[0].decode('utf8')):
 
2486
                                    current_path_info = current_path_info[:2] + \
 
2487
                                        ('tree-reference',) + current_path_info[3:]
 
2488
                        else:
 
2489
                            current_path_info = None
 
2490
                        path_handled = False
 
2491
                    else:
 
2492
                        advance_path = True # reset the advance flagg.
 
2493
                if current_block is not None:
 
2494
                    block_index += 1
 
2495
                    if (block_index < len(state._dirblocks) and
 
2496
                        osutils.is_inside(current_root, state._dirblocks[block_index][0])):
 
2497
                        current_block = state._dirblocks[block_index]
 
2498
                    else:
 
2499
                        current_block = None
 
2500
                if current_dir_info is not None:
 
2501
                    try:
 
2502
                        current_dir_info = dir_iterator.next()
 
2503
                    except StopIteration:
 
2504
                        current_dir_info = None
 
2505
 
1989
2506
 
1990
2507
    @staticmethod
1991
2508
    def is_compatible(source, target):
1992
2509
        # the target must be a dirstate working tree
1993
 
        if not isinstance(target, DirStateWorkingTree):
 
2510
        if not isinstance(target, WorkingTree4):
1994
2511
            return False
1995
 
        # the source must be a revtree or dirstate rev tree.
 
2512
        # the source must be a revtreee or dirstate rev tree.
1996
2513
        if not isinstance(source,
1997
2514
            (revisiontree.RevisionTree, DirStateRevisionTree)):
1998
2515
            return False
2050
2567
        tree._transport.put_bytes('format',
2051
2568
            self.target_format.get_format_string(),
2052
2569
            mode=tree.bzrdir._get_file_mode())
2053
 
 
2054
 
 
2055
 
class Converter4to5(object):
2056
 
    """Perform an in-place upgrade of format 4 to format 5 trees."""
2057
 
 
2058
 
    def __init__(self):
2059
 
        self.target_format = WorkingTreeFormat5()
2060
 
 
2061
 
    def convert(self, tree):
2062
 
        # lock the control files not the tree, so that we don't get tree
2063
 
        # on-unlock behaviours, and so that no-one else diddles with the 
2064
 
        # tree during upgrade.
2065
 
        tree._control_files.lock_write()
2066
 
        try:
2067
 
            self.init_custom_control_files(tree)
2068
 
            self.update_format(tree)
2069
 
        finally:
2070
 
            tree._control_files.unlock()
2071
 
 
2072
 
    def init_custom_control_files(self, tree):
2073
 
        """Initialize custom control files."""
2074
 
        tree._transport.put_bytes('views', '',
2075
 
            mode=tree.bzrdir._get_file_mode())
2076
 
 
2077
 
    def update_format(self, tree):
2078
 
        """Change the format marker."""
2079
 
        tree._transport.put_bytes('format',
2080
 
            self.target_format.get_format_string(),
2081
 
            mode=tree.bzrdir._get_file_mode())