29
29
WorkingTree.open(dir).
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)
33
39
from cStringIO import StringIO
78
90
from bzrlib import symbol_versioning
79
91
from bzrlib.decorators import needs_read_lock, needs_write_lock
92
from bzrlib.inventory import InventoryEntry, Inventory, ROOT_ID, TreeReference
80
93
from bzrlib.lockable_files import LockableFiles
81
94
from bzrlib.lockdir import LockDir
82
95
import bzrlib.mutabletree
83
96
from bzrlib.mutabletree import needs_tree_write_lock
84
97
from bzrlib import osutils
85
98
from bzrlib.osutils import (
95
110
from bzrlib.filters import filtered_input_file
96
111
from bzrlib.trace import mutter, note
97
112
from bzrlib.transport.local import LocalTransport
98
from bzrlib.revision import CURRENT_REVISION
113
from bzrlib.progress import DummyProgress, ProgressPhase
114
from bzrlib.revision import NULL_REVISION, CURRENT_REVISION
99
115
from bzrlib.rio import RioReader, rio_file, Stanza
100
from bzrlib.symbol_versioning import (
102
DEPRECATED_PARAMETER,
116
from bzrlib.symbol_versioning import (deprecated_passed,
119
DEPRECATED_PARAMETER,
106
123
MERGE_MODIFIED_HEADER_1 = "BZR merge-modified list format 1"
107
# TODO: Modifying the conflict objects or their type is currently nearly
108
# impossible as there is no clear relationship between the working tree format
109
# and the conflict list file format.
110
124
CONFLICT_HEADER_1 = "BZR conflict list format 1"
112
126
ERROR_PATH_NOT_FOUND = 3 # WindowsError errno code, equivalent to ENOENT
452
457
def get_file_with_stat(self, file_id, path=None, filtered=True,
453
458
_fstat=os.fstat):
454
"""See Tree.get_file_with_stat."""
459
"""See MutableTree.get_file_with_stat."""
456
461
path = self.id2path(file_id)
457
462
file_obj = self.get_file_byname(path, filtered=False)
458
463
stat_value = _fstat(file_obj.fileno())
459
if filtered and self.supports_content_filtering():
464
if self.supports_content_filtering() and filtered:
460
465
filters = self._content_filter_stack(path)
461
466
file_obj = filtered_input_file(file_obj, filters)
462
467
return (file_obj, stat_value)
467
472
def get_file_byname(self, filename, filtered=True):
468
473
path = self.abspath(filename)
469
474
f = file(path, 'rb')
470
if filtered and self.supports_content_filtering():
475
if self.supports_content_filtering() and filtered:
471
476
filters = self._content_filter_stack(filename)
472
477
return filtered_input_file(f, filters)
492
497
incorrectly attributed to CURRENT_REVISION (but after committing, the
493
498
attribution will be correct).
495
maybe_file_parent_keys = []
496
for parent_id in self.get_parent_ids():
498
parent_tree = self.revision_tree(parent_id)
499
except errors.NoSuchRevisionInTree:
500
parent_tree = self.branch.repository.revision_tree(parent_id)
501
parent_tree.lock_read()
503
if file_id not in parent_tree:
505
ie = parent_tree.inventory[file_id]
506
if ie.kind != 'file':
507
# Note: this is slightly unnecessary, because symlinks and
508
# directories have a "text" which is the empty text, and we
509
# know that won't mess up annotations. But it seems cleaner
511
parent_text_key = (file_id, ie.revision)
512
if parent_text_key not in maybe_file_parent_keys:
513
maybe_file_parent_keys.append(parent_text_key)
516
graph = _mod_graph.Graph(self.branch.repository.texts)
517
heads = graph.heads(maybe_file_parent_keys)
518
file_parent_keys = []
519
for key in maybe_file_parent_keys:
521
file_parent_keys.append(key)
523
# Now we have the parents of this content
524
annotator = self.branch.repository.texts.get_annotator()
525
text = self.get_file(file_id).read()
526
this_key =(file_id, default_revision)
527
annotator.add_special_text(this_key, file_parent_keys, text)
528
annotations = [(key[-1], line)
529
for key, line in annotator.annotate_flat(this_key)]
500
basis = self.basis_tree()
503
changes = self.iter_changes(basis, True, [self.id2path(file_id)],
504
require_versioned=True).next()
505
changed_content, kind = changes[2], changes[6]
506
if not changed_content:
507
return basis.annotate_iter(file_id)
511
if kind[0] != 'file':
514
old_lines = list(basis.annotate_iter(file_id))
516
for tree in self.branch.repository.revision_trees(
517
self.get_parent_ids()[1:]):
518
if file_id not in tree:
520
old.append(list(tree.annotate_iter(file_id)))
521
return annotate.reannotate(old, self.get_file(file_id).readlines(),
532
526
def _get_ancestors(self, default_revision):
533
527
ancestors = set([default_revision])
641
633
def _is_executable_from_path_and_stat_from_basis(self, path, stat_result):
642
634
file_id = self.path2id(path)
644
# For unversioned files on win32, we just assume they are not
647
635
return self._inventory[file_id].executable
649
637
def _is_executable_from_path_and_stat_from_stat(self, path, stat_result):
760
748
kind = _mapper(stat_result.st_mode)
761
749
if kind == 'file':
762
return self._file_content_summary(path, stat_result)
750
size = stat_result.st_size
751
# try for a stat cache lookup
752
executable = self._is_executable_from_path_and_stat(path, stat_result)
753
return (kind, size, executable, self._sha_from_stat(
763
755
elif kind == 'directory':
764
756
# perhaps it looks like a plain directory, but it's really a
773
765
return (kind, None, None, None)
775
def _file_content_summary(self, path, stat_result):
776
size = stat_result.st_size
777
executable = self._is_executable_from_path_and_stat(path, stat_result)
778
# try for a stat cache lookup
779
return ('file', size, executable, self._sha_from_stat(
782
767
def _check_parents_for_ghosts(self, revision_ids, allow_leftmost_as_ghost):
783
768
"""Common ghost checking functionality from set_parent_*.
905
890
@needs_write_lock # because merge pulls data into the branch.
906
891
def merge_from_branch(self, branch, to_revision=None, from_revision=None,
907
merge_type=None, force=False):
908
893
"""Merge from a branch into this working tree.
910
895
:param branch: The branch to merge from.
914
899
branch.last_revision().
916
901
from bzrlib.merge import Merger, Merge3Merger
917
merger = Merger(self.branch, this_tree=self)
918
# check that there are no local alterations
919
if not force and self.has_changes():
920
raise errors.UncommittedChanges(self)
921
if to_revision is None:
922
to_revision = _mod_revision.ensure_null(branch.last_revision())
923
merger.other_rev_id = to_revision
924
if _mod_revision.is_null(merger.other_rev_id):
925
raise errors.NoCommits(branch)
926
self.branch.fetch(branch, last_revision=merger.other_rev_id)
927
merger.other_basis = merger.other_rev_id
928
merger.other_tree = self.branch.repository.revision_tree(
930
merger.other_branch = branch
931
if from_revision is None:
934
merger.set_base_revision(from_revision, branch)
935
if merger.base_rev_id == merger.other_rev_id:
936
raise errors.PointlessMerge
937
merger.backup_files = False
938
if merge_type is None:
939
merger.merge_type = Merge3Merger
941
merger.merge_type = merge_type
942
merger.set_interesting_files(None)
943
merger.show_base = False
944
merger.reprocess = False
945
conflicts = merger.do_merge()
902
pb = bzrlib.ui.ui_factory.nested_progress_bar()
904
merger = Merger(self.branch, this_tree=self, pb=pb)
905
merger.pp = ProgressPhase("Merge phase", 5, pb)
906
merger.pp.next_phase()
907
# check that there are no
909
merger.check_basis(check_clean=True, require_commits=False)
910
if to_revision is None:
911
to_revision = _mod_revision.ensure_null(branch.last_revision())
912
merger.other_rev_id = to_revision
913
if _mod_revision.is_null(merger.other_rev_id):
914
raise errors.NoCommits(branch)
915
self.branch.fetch(branch, last_revision=merger.other_rev_id)
916
merger.other_basis = merger.other_rev_id
917
merger.other_tree = self.branch.repository.revision_tree(
919
merger.other_branch = branch
920
merger.pp.next_phase()
921
if from_revision is None:
924
merger.set_base_revision(from_revision, branch)
925
if merger.base_rev_id == merger.other_rev_id:
926
raise errors.PointlessMerge
927
merger.backup_files = False
928
if merge_type is None:
929
merger.merge_type = Merge3Merger
931
merger.merge_type = merge_type
932
merger.set_interesting_files(None)
933
merger.show_base = False
934
merger.reprocess = False
935
conflicts = merger.do_merge()
1096
1088
tree_transport = self.bzrdir.root_transport.clone(sub_path)
1097
1089
if tree_transport.base != branch_transport.base:
1098
1090
tree_bzrdir = format.initialize_on_transport(tree_transport)
1099
branch.BranchReferenceFormat().initialize(tree_bzrdir,
1100
target_branch=new_branch)
1091
branch.BranchReferenceFormat().initialize(tree_bzrdir, new_branch)
1102
1093
tree_bzrdir = branch_bzrdir
1103
wt = tree_bzrdir.create_workingtree(_mod_revision.NULL_REVISION)
1094
wt = tree_bzrdir.create_workingtree(NULL_REVISION)
1104
1095
wt.set_parent_ids(self.get_parent_ids())
1105
1096
my_inv = self.inventory
1106
child_inv = inventory.Inventory(root_id=None)
1097
child_inv = Inventory(root_id=None)
1107
1098
new_root = my_inv[file_id]
1108
1099
my_inv.remove_recursive_id(file_id)
1109
1100
new_root.parent_id = None
1134
1125
def _kind(self, relpath):
1135
1126
return osutils.file_kind(self.abspath(relpath))
1137
def list_files(self, include_root=False, from_dir=None, recursive=True):
1138
"""List all files as (path, class, kind, id, entry).
1128
def list_files(self, include_root=False):
1129
"""Recursively list all files as (path, class, kind, id, entry).
1140
1131
Lists, but does not descend into unversioned directories.
1141
1133
This does not include files that have been deleted in this
1142
tree. Skips the control directory.
1144
:param include_root: if True, return an entry for the root
1145
:param from_dir: start from this directory or None for the root
1146
:param recursive: whether to recurse into subdirectories or not
1136
Skips the control directory.
1148
1138
# list_files is an iterator, so @needs_read_lock doesn't work properly
1149
1139
# with it. So callers should be careful to always read_lock the tree.
1164
1154
fk_entries = {'directory':TreeDirectory, 'file':TreeFile, 'symlink':TreeLink}
1166
1156
# directory file_id, relative path, absolute path, reverse sorted children
1167
if from_dir is not None:
1168
from_dir_id = inv.path2id(from_dir)
1169
if from_dir_id is None:
1170
# Directory not versioned
1172
from_dir_abspath = pathjoin(self.basedir, from_dir)
1174
from_dir_id = inv.root.file_id
1175
from_dir_abspath = self.basedir
1176
children = os.listdir(from_dir_abspath)
1157
children = os.listdir(self.basedir)
1177
1158
children.sort()
1178
1159
# jam 20060527 The kernel sized tree seems equivalent whether we
1179
1160
# use a deque and popleft to keep them sorted, or if we use a plain
1180
1161
# list and just reverse() them.
1181
1162
children = collections.deque(children)
1182
stack = [(from_dir_id, u'', from_dir_abspath, children)]
1163
stack = [(inv.root.file_id, u'', self.basedir, children)]
1184
1165
from_dir_id, from_dir_relpath, from_dir_abspath, children = stack[-1]
1243
1224
if fk != 'directory':
1246
# But do this child first if recursing down
1248
new_children = os.listdir(fap)
1250
new_children = collections.deque(new_children)
1251
stack.append((f_ie.file_id, fp, fap, new_children))
1252
# Break out of inner loop,
1253
# so that we start outer loop with child
1227
# But do this child first
1228
new_children = os.listdir(fap)
1230
new_children = collections.deque(new_children)
1231
stack.append((f_ie.file_id, fp, fap, new_children))
1232
# Break out of inner loop,
1233
# so that we start outer loop with child
1256
1236
# if we finished all children, pop it off the stack
1435
1415
inv = self.inventory
1436
1416
for entry in moved:
1438
self._move_entry(WorkingTree._RenameEntry(
1439
entry.to_rel, entry.from_id,
1418
self._move_entry(_RenameEntry(entry.to_rel, entry.from_id,
1440
1419
entry.to_tail, entry.to_parent_id, entry.from_rel,
1441
1420
entry.from_tail, entry.from_parent_id,
1442
1421
entry.only_change_inv))
1493
1472
from_tail = splitpath(from_rel)[-1]
1494
1473
from_id = inv.path2id(from_rel)
1495
1474
if from_id is None:
1496
# if file is missing in the inventory maybe it's in the basis_tree
1497
basis_tree = self.branch.basis_tree()
1498
from_id = basis_tree.path2id(from_rel)
1500
raise errors.BzrRenameFailedError(from_rel,to_rel,
1501
errors.NotVersionedError(path=str(from_rel)))
1502
# put entry back in the inventory so we can rename it
1503
from_entry = basis_tree.inventory[from_id].copy()
1506
from_entry = inv[from_id]
1475
raise errors.BzrRenameFailedError(from_rel,to_rel,
1476
errors.NotVersionedError(path=str(from_rel)))
1477
from_entry = inv[from_id]
1507
1478
from_parent_id = from_entry.parent_id
1508
1479
to_dir, to_tail = os.path.split(to_rel)
1509
1480
to_dir_id = inv.path2id(to_dir)
1601
1572
@needs_write_lock
1602
1573
def pull(self, source, overwrite=False, stop_revision=None,
1603
change_reporter=None, possible_transports=None, local=False):
1574
change_reporter=None, possible_transports=None):
1575
top_pb = bzrlib.ui.ui_factory.nested_progress_bar()
1604
1576
source.lock_read()
1578
pp = ProgressPhase("Pull phase", 2, top_pb)
1606
1580
old_revision_info = self.branch.last_revision_info()
1607
1581
basis_tree = self.basis_tree()
1608
1582
count = self.branch.pull(source, overwrite, stop_revision,
1609
possible_transports=possible_transports,
1583
possible_transports=possible_transports)
1611
1584
new_revision_info = self.branch.last_revision_info()
1612
1585
if new_revision_info != old_revision_info:
1613
1587
repository = self.branch.repository
1588
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1614
1589
basis_tree.lock_read()
1616
1591
new_basis_tree = self.branch.basis_tree()
1619
1594
new_basis_tree,
1621
1596
this_tree=self,
1623
1598
change_reporter=change_reporter)
1624
basis_root_id = basis_tree.get_root_id()
1625
new_root_id = new_basis_tree.get_root_id()
1626
if basis_root_id != new_root_id:
1627
self.set_root_id(new_root_id)
1599
if (basis_tree.inventory.root is None and
1600
new_basis_tree.inventory.root is not None):
1601
self.set_root_id(new_basis_tree.get_root_id())
1629
1604
basis_tree.unlock()
1630
1605
# TODO - dedup parents list with things merged by pull ?
1631
1606
# reuse the revisiontree we merged against to set the new
1734
1710
r"""Check whether the filename matches an ignore pattern.
1736
1712
Patterns containing '/' or '\' need to match the whole path;
1737
others match against only the last component. Patterns starting
1738
with '!' are ignore exceptions. Exceptions take precedence
1739
over regular patterns and cause the filename to not be ignored.
1713
others match against only the last component.
1741
1715
If the file is ignored, returns the pattern which caused it to
1742
1716
be ignored, otherwise None. So this can simply be used as a
1743
1717
boolean if desired."""
1744
1718
if getattr(self, '_ignoreglobster', None) is None:
1745
self._ignoreglobster = globbing.ExceptionGlobster(self.get_ignore_list())
1719
self._ignoreglobster = globbing.Globster(self.get_ignore_list())
1746
1720
return self._ignoreglobster.match(filename)
1748
1722
def kind(self, file_id):
1896
1866
# revision_id is set. We must check for this full string, because a
1897
1867
# root node id can legitimately look like 'revision_id' but cannot
1898
1868
# contain a '"'.
1899
xml = self.branch.repository._get_inventory_xml(new_revision)
1869
xml = self.branch.repository.get_inventory_xml(new_revision)
1900
1870
firstline = xml.split('\n', 1)[0]
1901
1871
if (not 'revision_id="' in firstline or
1902
1872
'format="7"' not in firstline):
1903
inv = self.branch.repository._serializer.read_inventory_from_string(
1873
inv = self.branch.repository.deserialise_inventory(
1905
1875
xml = self._create_basis_xml_from_inventory(new_revision, inv)
1906
1876
self._write_basis_inventory(xml)
1907
1877
except (errors.NoSuchRevision, errors.RevisionNotPresent):
2027
1991
new_status = 'I'
2029
1993
new_status = '?'
2030
# XXX: Really should be a more abstract reporter interface
2031
kind_ch = osutils.kind_marker(self.kind(fid))
2032
to_file.write(new_status + ' ' + f + kind_ch + '\n')
1994
textui.show_status(new_status, self.kind(fid), f,
2033
1996
# Unversion file
2034
1997
inv_delta.append((f, None, fid, None))
2035
1998
message = "removed %s" % (f,)
2187
2151
raise NotImplementedError(self.unlock)
2191
def update(self, change_reporter=None, possible_transports=None,
2192
revision=None, old_tip=_marker):
2153
def update(self, change_reporter=None, possible_transports=None):
2193
2154
"""Update a working tree along its branch.
2195
2156
This will update the branch if its bound too, which means we have
2213
2174
- Merge current state -> basis tree of the master w.r.t. the old tree
2215
2176
- Do a 'normal' merge of the old branch basis if it is relevant.
2217
:param revision: The target revision to update to. Must be in the
2219
:param old_tip: If branch.update() has already been run, the value it
2220
returned (old tip of the branch or None). _marker is used
2223
2178
if self.branch.get_bound_location() is not None:
2224
2179
self.lock_write()
2225
update_branch = (old_tip is self._marker)
2180
update_branch = True
2227
2182
self.lock_tree_write()
2228
2183
update_branch = False
2230
2185
if update_branch:
2231
2186
old_tip = self.branch.update(possible_transports)
2233
if old_tip is self._marker:
2235
return self._update_tree(old_tip, change_reporter, revision)
2189
return self._update_tree(old_tip, change_reporter)
2239
2193
@needs_tree_write_lock
2240
def _update_tree(self, old_tip=None, change_reporter=None, revision=None):
2194
def _update_tree(self, old_tip=None, change_reporter=None):
2241
2195
"""Update a tree to the master branch.
2243
2197
:param old_tip: if supplied, the previous tip revision the branch,
2253
2207
# We MUST save it even if an error occurs, because otherwise the users
2254
2208
# local work is unreferenced and will appear to have been lost.
2258
2212
last_rev = self.get_parent_ids()[0]
2259
2213
except IndexError:
2260
2214
last_rev = _mod_revision.NULL_REVISION
2261
if revision is None:
2262
revision = self.branch.last_revision()
2264
old_tip = old_tip or _mod_revision.NULL_REVISION
2266
if not _mod_revision.is_null(old_tip) and old_tip != last_rev:
2267
# the branch we are bound to was updated
2268
# merge those changes in first
2269
base_tree = self.basis_tree()
2270
other_tree = self.branch.repository.revision_tree(old_tip)
2271
nb_conflicts = merge.merge_inner(self.branch, other_tree,
2272
base_tree, this_tree=self,
2273
change_reporter=change_reporter)
2275
self.add_parent_tree((old_tip, other_tree))
2276
trace.note('Rerun update after fixing the conflicts.')
2279
if last_rev != _mod_revision.ensure_null(revision):
2280
# the working tree is up to date with the branch
2281
# we can merge the specified revision from master
2282
to_tree = self.branch.repository.revision_tree(revision)
2283
to_root_id = to_tree.get_root_id()
2215
if last_rev != _mod_revision.ensure_null(self.branch.last_revision()):
2216
# merge tree state up to new branch tip.
2285
2217
basis = self.basis_tree()
2286
2218
basis.lock_read()
2288
if (basis.inventory.root is None
2289
or basis.inventory.root.file_id != to_root_id):
2290
self.set_root_id(to_root_id)
2220
to_tree = self.branch.basis_tree()
2221
if basis.inventory.root is None:
2222
self.set_root_id(to_tree.get_root_id())
2224
result += merge.merge_inner(
2229
change_reporter=change_reporter)
2295
# determine the branch point
2296
graph = self.branch.repository.get_graph()
2297
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2299
base_tree = self.branch.repository.revision_tree(base_rev_id)
2301
nb_conflicts = merge.merge_inner(self.branch, to_tree, base_tree,
2303
change_reporter=change_reporter)
2304
self.set_last_revision(revision)
2305
2232
# TODO - dedup parents list with things merged by pull ?
2306
2233
# reuse the tree we've updated to to set the basis:
2307
parent_trees = [(revision, to_tree)]
2234
parent_trees = [(self.branch.last_revision(), to_tree)]
2308
2235
merges = self.get_parent_ids()[1:]
2309
2236
# Ideally we ask the tree for the trees here, that way the working
2310
2237
# tree can decide whether to give us the entire tree or give us a
2314
2241
for parent in merges:
2315
2242
parent_trees.append(
2316
2243
(parent, self.branch.repository.revision_tree(parent)))
2317
if not _mod_revision.is_null(old_tip):
2244
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2318
2245
parent_trees.append(
2319
2246
(old_tip, self.branch.repository.revision_tree(old_tip)))
2320
2247
self.set_parent_trees(parent_trees)
2321
2248
last_rev = parent_trees[0][0]
2250
# the working tree had the same last-revision as the master
2251
# branch did. We may still have pivot local work from the local
2252
# branch into old_tip:
2253
if (old_tip is not None and not _mod_revision.is_null(old_tip)):
2254
self.add_parent_tree_id(old_tip)
2255
if (old_tip is not None and not _mod_revision.is_null(old_tip)
2256
and old_tip != last_rev):
2257
# our last revision was not the prior branch last revision
2258
# and we have converted that last revision to a pending merge.
2259
# base is somewhere between the branch tip now
2260
# and the now pending merge
2262
# Since we just modified the working tree and inventory, flush out
2263
# the current state, before we modify it again.
2264
# TODO: jam 20070214 WorkingTree3 doesn't require this, dirstate
2265
# requires it only because TreeTransform directly munges the
2266
# inventory and calls tree._write_inventory(). Ultimately we
2267
# should be able to remove this extra flush.
2269
graph = self.branch.repository.get_graph()
2270
base_rev_id = graph.find_unique_lca(self.branch.last_revision(),
2272
base_tree = self.branch.repository.revision_tree(base_rev_id)
2273
other_tree = self.branch.repository.revision_tree(old_tip)
2274
result += merge.merge_inner(
2279
change_reporter=change_reporter)
2324
2282
def _write_hashcache_if_dirty(self):
2325
2283
"""Write out the hashcache if it is dirty."""
2425
2383
bzrdir_loc = bisect_left(cur_disk_dir_content,
2426
2384
('.bzr', '.bzr'))
2427
2385
if (bzrdir_loc < len(cur_disk_dir_content)
2428
and self.bzrdir.is_control_filename(
2429
cur_disk_dir_content[bzrdir_loc][0])):
2386
and cur_disk_dir_content[bzrdir_loc][0] == '.bzr'):
2430
2387
# we dont yield the contents of, or, .bzr itself.
2431
2388
del cur_disk_dir_content[bzrdir_loc]
2432
2389
if inv_finished:
2779
2737
"""Return the format for the working tree object in a_bzrdir."""
2781
2739
transport = a_bzrdir.get_workingtree_transport(None)
2782
format_string = transport.get_bytes("format")
2740
format_string = transport.get("format").read()
2783
2741
return klass._formats[format_string]
2784
2742
except errors.NoSuchFile:
2785
2743
raise errors.NoWorkingTree(base=transport.base)
3049
3007
return self.get_format_string()
3052
__default_format = WorkingTreeFormat6()
3010
__default_format = WorkingTreeFormat4()
3053
3011
WorkingTreeFormat.register_format(__default_format)
3012
WorkingTreeFormat.register_format(WorkingTreeFormat6())
3054
3013
WorkingTreeFormat.register_format(WorkingTreeFormat5())
3055
WorkingTreeFormat.register_format(WorkingTreeFormat4())
3056
3014
WorkingTreeFormat.register_format(WorkingTreeFormat3())
3057
3015
WorkingTreeFormat.set_default_format(__default_format)
3058
3016
# formats which have no format string are not discoverable