113
93
return ('not applicable', None)
116
class PerFileMerger(AbstractPerFileMerger):
117
"""Merge individual files when self.file_matches returns True.
119
This class is intended to be subclassed. The file_matches and
120
merge_matching methods should be overridden with concrete implementations.
123
def file_matches(self, params):
124
"""Return True if merge_matching should be called on this file.
126
Only called with merges of plain files with no clear winner.
128
Subclasses must override this.
130
raise NotImplementedError(self.file_matches)
132
def get_filename(self, params, tree):
133
"""Lookup the filename (i.e. basename, not path), given a Tree (e.g.
134
self.merger.this_tree) and a MergeFileHookParams.
136
return osutils.basename(tree.id2path(params.file_id))
138
def get_filepath(self, params, tree):
139
"""Calculate the path to the file in a tree.
141
:param params: A MergeFileHookParams describing the file to merge
142
:param tree: a Tree, e.g. self.merger.this_tree.
144
return tree.id2path(params.file_id)
146
def merge_contents(self, params):
147
"""Merge the contents of a single file."""
148
# Check whether this custom merge logic should be used.
150
# OTHER is a straight winner, rely on default merge.
151
params.winner == 'other' or
152
# THIS and OTHER aren't both files.
153
not params.is_file_merge() or
154
# The filename doesn't match
155
not self.file_matches(params)):
156
return 'not_applicable', None
157
return self.merge_matching(params)
159
def merge_matching(self, params):
160
"""Merge the contents of a single file that has matched the criteria
161
in PerFileMerger.merge_contents (is a conflict, is a file,
162
self.file_matches is True).
164
Subclasses must override this.
166
raise NotImplementedError(self.merge_matching)
169
class ConfigurableFileMerger(PerFileMerger):
96
class ConfigurableFileMerger(AbstractPerFileMerger):
170
97
"""Merge individual files when configured via a .conf file.
172
99
This is a base class for concrete custom file merging logic. Concrete
173
100
classes should implement ``merge_text``.
175
See ``bzrlib.plugins.news_merge.news_merge`` for an example concrete class.
177
102
:ivar affected_files: The configured file paths to merge.
179
103
:cvar name_prefix: The prefix to use when looking up configuration
180
details. <name_prefix>_merge_files describes the files targeted by the
183
105
:cvar default_files: The default file paths to merge when no configuration
215
132
affected_files = self.default_files
216
133
self.affected_files = affected_files
217
134
if affected_files:
218
filepath = self.get_filepath(params, self.merger.this_tree)
219
if filepath in affected_files:
135
filename = self.merger.this_tree.id2path(params.file_id)
136
if filename in affected_files:
223
def merge_matching(self, params):
224
return self.merge_text(params)
140
def merge_contents(self, params):
141
"""Merge the contents of a single file."""
142
# First, check whether this custom merge logic should be used. We
143
# expect most files should not be merged by this handler.
145
# OTHER is a straight winner, rely on default merge.
146
params.winner == 'other' or
147
# THIS and OTHER aren't both files.
148
not params.is_file_merge() or
149
# The filename isn't listed in the 'NAME_merge_files' config
151
not self.filename_matches_config(params)):
152
return 'not_applicable', None
153
return self.merge_text(self, params)
226
155
def merge_text(self, params):
227
156
"""Merge the byte contents of a single file.
454
385
revision_id = _mod_revision.ensure_null(revision_id)
455
386
return branch, self.revision_tree(revision_id, branch)
388
@deprecated_method(deprecated_in((2, 1, 0)))
389
def ensure_revision_trees(self):
390
if self.this_revision_tree is None:
391
self.this_basis_tree = self.revision_tree(self.this_basis)
392
if self.this_basis == self.this_rev_id:
393
self.this_revision_tree = self.this_basis_tree
395
if self.other_rev_id is None:
396
other_basis_tree = self.revision_tree(self.other_basis)
397
if other_basis_tree.has_changes(self.other_tree):
398
raise errors.WorkingTreeNotRevision(self.this_tree)
399
other_rev_id = self.other_basis
400
self.other_tree = other_basis_tree
402
@deprecated_method(deprecated_in((2, 1, 0)))
403
def file_revisions(self, file_id):
404
self.ensure_revision_trees()
405
def get_id(tree, file_id):
406
revision_id = tree.inventory[file_id].revision
408
if self.this_rev_id is None:
409
if self.this_basis_tree.get_file_sha1(file_id) != \
410
self.this_tree.get_file_sha1(file_id):
411
raise errors.WorkingTreeNotRevision(self.this_tree)
413
trees = (self.this_basis_tree, self.other_tree)
414
return [get_id(tree, file_id) for tree in trees]
416
@deprecated_method(deprecated_in((2, 1, 0)))
417
def check_basis(self, check_clean, require_commits=True):
418
if self.this_basis is None and require_commits is True:
419
raise errors.BzrCommandError(
420
"This branch has no commits."
421
" (perhaps you would prefer 'bzr pull')")
424
if self.this_basis != self.this_rev_id:
425
raise errors.UncommittedChanges(self.this_tree)
427
@deprecated_method(deprecated_in((2, 1, 0)))
428
def compare_basis(self):
430
basis_tree = self.revision_tree(self.this_tree.last_revision())
431
except errors.NoSuchRevision:
432
basis_tree = self.this_tree.basis_tree()
433
if not self.this_tree.has_changes(basis_tree):
434
self.this_rev_id = self.this_basis
457
436
def set_interesting_files(self, file_list):
458
437
self.interesting_files = file_list
560
541
self.base_rev_id = self.revision_graph.find_unique_lca(
562
sorted_lca_keys = self.revision_graph.find_merge_order(
564
if self.base_rev_id == _mod_revision.NULL_REVISION:
565
self.base_rev_id = sorted_lca_keys[0]
543
self._is_criss_cross = True
567
544
if self.base_rev_id == _mod_revision.NULL_REVISION:
568
545
raise errors.UnrelatedBranches()
569
546
if self._is_criss_cross:
570
547
trace.warning('Warning: criss-cross merge encountered. See bzr'
571
548
' help criss-cross.')
572
549
trace.mutter('Criss-cross lcas: %r' % lcas)
573
if self.base_rev_id in lcas:
574
trace.mutter('Unable to find unique lca. '
575
'Fallback %r as best option.'
577
interesting_revision_ids = set(lcas)
578
interesting_revision_ids.add(self.base_rev_id)
550
interesting_revision_ids = [self.base_rev_id]
551
interesting_revision_ids.extend(lcas)
579
552
interesting_trees = dict((t.get_revision_id(), t)
580
553
for t in self.this_branch.repository.revision_trees(
581
554
interesting_revision_ids))
582
555
self._cached_trees.update(interesting_trees)
583
if self.base_rev_id in lcas:
584
self.base_tree = interesting_trees[self.base_rev_id]
586
self.base_tree = interesting_trees.pop(self.base_rev_id)
556
self.base_tree = interesting_trees.pop(self.base_rev_id)
557
sorted_lca_keys = self.revision_graph.find_merge_order(
587
559
self._lca_trees = [interesting_trees[key]
588
560
for key in sorted_lca_keys]
664
630
sub_merge = Merger(sub_tree.branch, this_tree=sub_tree)
665
631
sub_merge.merge_type = self.merge_type
666
other_branch = self.other_branch.reference_parent(file_id,
632
other_branch = self.other_branch.reference_parent(file_id, relpath)
668
633
sub_merge.set_other_revision(other_revision, other_branch)
669
634
base_revision = self.base_tree.get_reference_revision(file_id)
670
635
sub_merge.base_tree = \
671
636
sub_tree.branch.repository.revision_tree(base_revision)
672
637
sub_merge.base_rev_id = base_revision
673
638
sub_merge.do_merge()
676
640
def do_merge(self):
677
operation = cleanup.OperationWithCleanups(self._do_merge_to)
678
641
self.this_tree.lock_tree_write()
679
operation.add_cleanup(self.this_tree.unlock)
680
if self.base_tree is not None:
681
self.base_tree.lock_read()
682
operation.add_cleanup(self.base_tree.unlock)
683
if self.other_tree is not None:
684
self.other_tree.lock_read()
685
operation.add_cleanup(self.other_tree.unlock)
686
merge = operation.run_simple()
643
if self.base_tree is not None:
644
self.base_tree.lock_read()
646
if self.other_tree is not None:
647
self.other_tree.lock_read()
649
merge = self.make_merger()
650
self._do_merge_to(merge)
652
if self.other_tree is not None:
653
self.other_tree.unlock()
655
if self.base_tree is not None:
656
self.base_tree.unlock()
658
self.this_tree.unlock()
687
659
if len(merge.cooked_conflicts) == 0:
688
660
if not self.ignore_zero and not trace.is_quiet():
689
trace.note(gettext("All changes applied successfully."))
661
trace.note("All changes applied successfully.")
691
trace.note(gettext("%d conflicts encountered.")
663
trace.note("%d conflicts encountered."
692
664
% len(merge.cooked_conflicts))
694
666
return len(merge.cooked_conflicts)
725
697
def __init__(self, working_tree, this_tree, base_tree, other_tree,
726
698
interesting_ids=None, reprocess=False, show_base=False,
727
pb=None, pp=None, change_reporter=None,
699
pb=progress.DummyProgress(), pp=None, change_reporter=None,
728
700
interesting_files=None, do_merge=True,
729
cherrypick=False, lca_trees=None, this_branch=None,
701
cherrypick=False, lca_trees=None, this_branch=None):
731
702
"""Initialize the merger object and perform the merge.
733
704
:param working_tree: The working tree to apply the merge to
734
705
:param this_tree: The local tree in the merge operation
735
706
:param base_tree: The common tree in the merge operation
736
707
:param other_tree: The other tree to merge changes from
737
:param this_branch: The branch associated with this_tree. Defaults to
738
this_tree.branch if not supplied.
739
:param other_branch: The branch associated with other_tree, if any.
708
:param this_branch: The branch associated with this_tree
740
709
:param interesting_ids: The file_ids of files that should be
741
710
participate in the merge. May not be combined with
742
711
interesting_files.
743
712
:param: reprocess If True, perform conflict-reduction processing.
744
713
:param show_base: If True, show the base revision in text conflicts.
745
714
(incompatible with reprocess)
715
:param pb: A Progress bar
747
716
:param pp: A ProgressPhase object
748
717
:param change_reporter: An object that should report changes made
749
718
:param interesting_files: The tree-relative paths of files that should
780
745
# making sure we haven't missed any corner cases.
781
746
# if lca_trees is None:
782
747
# self._lca_trees = [self.base_tree]
783
750
self.change_reporter = change_reporter
784
751
self.cherrypick = cherrypick
753
self.pp = progress.ProgressPhase("Merge phase", 3, self.pb)
788
warnings.warn("pp argument to Merge3Merger is deprecated")
790
warnings.warn("pb argument to Merge3Merger is deprecated")
792
757
def do_merge(self):
793
operation = cleanup.OperationWithCleanups(self._do_merge)
794
self.working_tree.lock_tree_write()
795
operation.add_cleanup(self.working_tree.unlock)
796
self.this_tree.lock_read()
797
operation.add_cleanup(self.this_tree.unlock)
758
self.this_tree.lock_tree_write()
798
759
self.base_tree.lock_read()
799
operation.add_cleanup(self.base_tree.unlock)
800
760
self.other_tree.lock_read()
801
operation.add_cleanup(self.other_tree.unlock)
804
def _do_merge(self, operation):
805
self.tt = transform.TreeTransform(self.working_tree, None)
806
operation.add_cleanup(self.tt.finalize)
807
self._compute_transform()
808
results = self.tt.apply(no_conflicts=True)
809
self.write_modified(results)
811
self.working_tree.add_conflicts(self.cooked_conflicts)
812
except errors.UnsupportedOperation:
762
self.tt = transform.TreeTransform(self.this_tree, self.pb)
765
self._compute_transform()
767
results = self.tt.apply(no_conflicts=True)
768
self.write_modified(results)
770
self.this_tree.add_conflicts(self.cooked_conflicts)
771
except errors.UnsupportedOperation:
776
self.other_tree.unlock()
777
self.base_tree.unlock()
778
self.this_tree.unlock()
815
781
def make_preview_transform(self):
816
operation = cleanup.OperationWithCleanups(self._make_preview_transform)
817
782
self.base_tree.lock_read()
818
operation.add_cleanup(self.base_tree.unlock)
819
783
self.other_tree.lock_read()
820
operation.add_cleanup(self.other_tree.unlock)
821
return operation.run_simple()
823
def _make_preview_transform(self):
824
self.tt = transform.TransformPreview(self.working_tree)
825
self._compute_transform()
784
self.tt = transform.TransformPreview(self.this_tree)
787
self._compute_transform()
790
self.other_tree.unlock()
791
self.base_tree.unlock()
828
795
def _compute_transform(self):
918
875
it then compares with THIS and BASE.
920
877
For the multi-valued entries, the format will be (BASE, [lca1, lca2])
922
:return: [(file_id, changed, parents, names, executable)], where:
924
* file_id: Simple file_id of the entry
925
* changed: Boolean, True if the kind or contents changed else False
926
* parents: ((base, [parent_id, in, lcas]), parent_id_other,
928
* names: ((base, [name, in, lcas]), name_in_other, name_in_this)
929
* executable: ((base, [exec, in, lcas]), exec_in_other,
878
:return: [(file_id, changed, parents, names, executable)]
879
file_id Simple file_id of the entry
880
changed Boolean, True if the kind or contents changed
882
parents ((base, [parent_id, in, lcas]), parent_id_other,
884
names ((base, [name, in, lcas]), name_in_other, name_in_this)
885
executable ((base, [exec, in, lcas]), exec_in_other, exec_in_this)
932
887
if self.interesting_files is not None:
933
888
lookup_trees = [self.this_tree, self.base_tree]
1040
self.tt.final_kind(self.tt.root)
1041
except errors.NoSuchFile:
1042
self.tt.cancel_deletion(self.tt.root)
1043
if self.tt.final_file_id(self.tt.root) is None:
1044
self.tt.version_file(self.tt.tree_file_id(self.tt.root),
1046
other_root_file_id = self.other_tree.get_root_id()
1047
if other_root_file_id is None:
1049
other_root = self.tt.trans_id_file_id(other_root_file_id)
1050
if other_root == self.tt.root:
1053
self.tt.final_kind(other_root)
1054
except errors.NoSuchFile:
1056
if self.this_tree.has_id(self.other_tree.inventory.root.file_id):
1057
# the other tree's root is a non-root in the current tree
1059
self.reparent_children(self.other_tree.inventory.root, self.tt.root)
1060
self.tt.cancel_creation(other_root)
1061
self.tt.cancel_versioning(other_root)
1063
def reparent_children(self, ie, target):
1064
for thing, child in ie.children.iteritems():
1065
trans_id = self.tt.trans_id_file_id(child.file_id)
1066
self.tt.adjust_path(self.tt.final_name(trans_id), target, trans_id)
1081
1068
def write_modified(self, results):
1082
1069
modified_hashes = {}
1083
1070
for path in results.modified_paths:
1084
file_id = self.working_tree.path2id(self.working_tree.relpath(path))
1071
file_id = self.this_tree.path2id(self.this_tree.relpath(path))
1085
1072
if file_id is None:
1087
hash = self.working_tree.get_file_sha1(file_id)
1074
hash = self.this_tree.get_file_sha1(file_id)
1088
1075
if hash is None:
1090
1077
modified_hashes[file_id] = hash
1091
self.working_tree.set_merge_modified(modified_hashes)
1078
self.this_tree.set_merge_modified(modified_hashes)
1094
1081
def parent(entry, file_id):
1230
1234
parent_id_winner = "other"
1231
1235
if name_winner == "this" and parent_id_winner == "this":
1233
if name_winner == 'conflict' or parent_id_winner == 'conflict':
1234
# Creating helpers (.OTHER or .THIS) here cause problems down the
1235
# road if a ContentConflict needs to be created so we should not do
1237
trans_id = self.tt.trans_id_file_id(file_id)
1238
self._raw_conflicts.append(('path conflict', trans_id, file_id,
1239
this_parent, this_name,
1240
other_parent, other_name))
1241
if not self.other_tree.has_id(file_id):
1237
if name_winner == "conflict":
1238
trans_id = self.tt.trans_id_file_id(file_id)
1239
self._raw_conflicts.append(('name conflict', trans_id,
1240
this_name, other_name))
1241
if parent_id_winner == "conflict":
1242
trans_id = self.tt.trans_id_file_id(file_id)
1243
self._raw_conflicts.append(('parent conflict', trans_id,
1244
this_parent, other_parent))
1245
if other_name is None:
1242
1246
# it doesn't matter whether the result was 'other' or
1243
# 'conflict'-- if it has no file id, we leave it alone.
1247
# 'conflict'-- if there's no 'other', we leave it alone.
1249
# if we get here, name_winner and parent_winner are set to safe values.
1250
trans_id = self.tt.trans_id_file_id(file_id)
1245
1251
parent_id = parents[self.winner_idx[parent_id_winner]]
1246
name = names[self.winner_idx[name_winner]]
1247
if parent_id is not None or name is not None:
1248
# if we get here, name_winner and parent_winner are set to safe
1250
if parent_id is None and name is not None:
1251
# if parent_id is None and name is non-None, current file is
1253
if names[self.winner_idx[parent_id_winner]] != '':
1254
raise AssertionError(
1255
'File looks like a root, but named %s' %
1256
names[self.winner_idx[parent_id_winner]])
1257
parent_trans_id = transform.ROOT_PARENT
1259
parent_trans_id = self.tt.trans_id_file_id(parent_id)
1260
self.tt.adjust_path(name, parent_trans_id,
1261
self.tt.trans_id_file_id(file_id))
1252
if parent_id is not None:
1253
parent_trans_id = self.tt.trans_id_file_id(parent_id)
1254
self.tt.adjust_path(names[self.winner_idx[name_winner]],
1255
parent_trans_id, trans_id)
1263
1257
def _do_merge_contents(self, file_id):
1264
1258
"""Performs a merge on file_id contents."""
1265
1259
def contents_pair(tree):
1266
if not tree.has_id(file_id):
1260
if file_id not in tree:
1267
1261
return (None, None)
1268
1262
kind = tree.kind(file_id)
1269
1263
if kind == "file":
1307
1301
if hook_status != 'not_applicable':
1308
1302
# Don't try any more hooks, this one applies.
1310
# If the merge ends up replacing the content of the file, we get rid of
1311
# it at the end of this method (this variable is used to track the
1312
# exceptions to this rule).
1314
1304
result = "modified"
1315
1305
if hook_status == 'not_applicable':
1316
# No merge hook was able to resolve the situation. Two cases exist:
1317
# a content conflict or a duplicate one.
1306
# This is a contents conflict, because none of the available
1307
# functions could merge it.
1319
1309
name = self.tt.final_name(trans_id)
1320
1310
parent_id = self.tt.final_parent(trans_id)
1322
inhibit_content_conflict = False
1323
if params.this_kind is None: # file_id is not in THIS
1324
# Is the name used for a different file_id ?
1325
dupe_path = self.other_tree.id2path(file_id)
1326
this_id = self.this_tree.path2id(dupe_path)
1327
if this_id is not None:
1328
# Two entries for the same path
1330
# versioning the merged file will trigger a duplicate
1332
self.tt.version_file(file_id, trans_id)
1333
transform.create_from_tree(
1334
self.tt, trans_id, self.other_tree, file_id,
1335
filter_tree_path=self._get_filter_tree_path(file_id))
1336
inhibit_content_conflict = True
1337
elif params.other_kind is None: # file_id is not in OTHER
1338
# Is the name used for a different file_id ?
1339
dupe_path = self.this_tree.id2path(file_id)
1340
other_id = self.other_tree.path2id(dupe_path)
1341
if other_id is not None:
1342
# Two entries for the same path again, but here, the other
1343
# entry will also be merged. We simply inhibit the
1344
# 'content' conflict creation because we know OTHER will
1345
# create (or has already created depending on ordering) an
1346
# entry at the same path. This will trigger a 'duplicate'
1349
inhibit_content_conflict = True
1350
if not inhibit_content_conflict:
1351
if params.this_kind is not None:
1352
self.tt.unversion_file(trans_id)
1353
# This is a contents conflict, because none of the available
1354
# functions could merge it.
1355
file_group = self._dump_conflicts(name, parent_id, file_id,
1357
self._raw_conflicts.append(('contents conflict', file_group))
1311
if self.this_tree.has_id(file_id):
1312
self.tt.unversion_file(trans_id)
1313
file_group = self._dump_conflicts(name, parent_id, file_id,
1315
self._raw_conflicts.append(('contents conflict', file_group))
1358
1316
elif hook_status == 'success':
1359
1317
self.tt.create_file(lines, trans_id)
1360
1318
elif hook_status == 'conflicted':
1376
1334
raise AssertionError('unknown hook_status: %r' % (hook_status,))
1377
1335
if not self.this_tree.has_id(file_id) and result == "modified":
1378
1336
self.tt.version_file(file_id, trans_id)
1380
# The merge has been performed and produced a new content, so the
1381
# old contents should not be retained.
1337
# The merge has been performed, so the old contents should not be
1382
1340
self.tt.delete_contents(trans_id)
1341
except errors.NoSuchFile:
1385
1345
def _default_other_winner_merge(self, merge_hook_params):
1386
1346
"""Replace this contents with other."""
1387
1347
file_id = merge_hook_params.file_id
1388
1348
trans_id = merge_hook_params.trans_id
1349
file_in_this = self.this_tree.has_id(file_id)
1389
1350
if self.other_tree.has_id(file_id):
1390
1351
# OTHER changed the file
1391
transform.create_from_tree(
1392
self.tt, trans_id, self.other_tree, file_id,
1393
filter_tree_path=self._get_filter_tree_path(file_id))
1353
if wt.supports_content_filtering():
1354
# We get the path from the working tree if it exists.
1355
# That fails though when OTHER is adding a file, so
1356
# we fall back to the other tree to find the path if
1357
# it doesn't exist locally.
1359
filter_tree_path = wt.id2path(file_id)
1360
except errors.NoSuchId:
1361
filter_tree_path = self.other_tree.id2path(file_id)
1363
# Skip the id2path lookup for older formats
1364
filter_tree_path = None
1365
transform.create_from_tree(self.tt, trans_id,
1366
self.other_tree, file_id,
1367
filter_tree_path=filter_tree_path)
1394
1368
return 'done', None
1395
elif self.this_tree.has_id(file_id):
1396
1370
# OTHER deleted the file
1397
1371
return 'delete', None
1575
1538
def cook_conflicts(self, fs_conflicts):
1576
1539
"""Convert all conflicts into a form that doesn't depend on trans_id"""
1577
content_conflict_file_ids = set()
1578
cooked_conflicts = transform.cook_conflicts(fs_conflicts, self.tt)
1541
self.cooked_conflicts.extend(transform.cook_conflicts(
1542
fs_conflicts, self.tt))
1579
1543
fp = transform.FinalPaths(self.tt)
1580
1544
for conflict in self._raw_conflicts:
1581
1545
conflict_type = conflict[0]
1582
if conflict_type == 'path conflict':
1584
this_parent, this_name,
1585
other_parent, other_name) = conflict[1:]
1586
if this_parent is None or this_name is None:
1587
this_path = '<deleted>'
1589
parent_path = fp.get_path(
1590
self.tt.trans_id_file_id(this_parent))
1591
this_path = osutils.pathjoin(parent_path, this_name)
1592
if other_parent is None or other_name is None:
1593
other_path = '<deleted>'
1595
if other_parent == self.other_tree.get_root_id():
1596
# The tree transform doesn't know about the other root,
1597
# so we special case here to avoid a NoFinalPath
1601
parent_path = fp.get_path(
1602
self.tt.trans_id_file_id(other_parent))
1603
other_path = osutils.pathjoin(parent_path, other_name)
1604
c = _mod_conflicts.Conflict.factory(
1605
'path conflict', path=this_path,
1606
conflict_path=other_path,
1608
elif conflict_type == 'contents conflict':
1546
if conflict_type in ('name conflict', 'parent conflict'):
1547
trans_id = conflict[1]
1548
conflict_args = conflict[2:]
1549
if trans_id not in name_conflicts:
1550
name_conflicts[trans_id] = {}
1551
transform.unique_add(name_conflicts[trans_id], conflict_type,
1553
if conflict_type == 'contents conflict':
1609
1554
for trans_id in conflict[1]:
1610
1555
file_id = self.tt.final_file_id(trans_id)
1611
1556
if file_id is not None:
1612
# Ok we found the relevant file-id
1614
1558
path = fp.get_path(trans_id)
1615
1559
for suffix in ('.BASE', '.THIS', '.OTHER'):
1616
1560
if path.endswith(suffix):
1617
# Here is the raw path
1618
1561
path = path[:-len(suffix)]
1620
1563
c = _mod_conflicts.Conflict.factory(conflict_type,
1621
1564
path=path, file_id=file_id)
1622
content_conflict_file_ids.add(file_id)
1623
elif conflict_type == 'text conflict':
1565
self.cooked_conflicts.append(c)
1566
if conflict_type == 'text conflict':
1624
1567
trans_id = conflict[1]
1625
1568
path = fp.get_path(trans_id)
1626
1569
file_id = self.tt.final_file_id(trans_id)
1627
1570
c = _mod_conflicts.Conflict.factory(conflict_type,
1628
1571
path=path, file_id=file_id)
1572
self.cooked_conflicts.append(c)
1574
for trans_id, conflicts in name_conflicts.iteritems():
1576
this_parent, other_parent = conflicts['parent conflict']
1577
if this_parent == other_parent:
1578
raise AssertionError()
1580
this_parent = other_parent = \
1581
self.tt.final_file_id(self.tt.final_parent(trans_id))
1583
this_name, other_name = conflicts['name conflict']
1584
if this_name == other_name:
1585
raise AssertionError()
1587
this_name = other_name = self.tt.final_name(trans_id)
1588
other_path = fp.get_path(trans_id)
1589
if this_parent is not None and this_name is not None:
1590
this_parent_path = \
1591
fp.get_path(self.tt.trans_id_file_id(this_parent))
1592
this_path = osutils.pathjoin(this_parent_path, this_name)
1630
raise AssertionError('bad conflict type: %r' % (conflict,))
1631
cooked_conflicts.append(c)
1633
self.cooked_conflicts = []
1634
# We want to get rid of path conflicts when a corresponding contents
1635
# conflict exists. This can occur when one branch deletes a file while
1636
# the other renames *and* modifies it. In this case, the content
1637
# conflict is enough.
1638
for c in cooked_conflicts:
1639
if (c.typestring == 'path conflict'
1640
and c.file_id in content_conflict_file_ids):
1594
this_path = "<deleted>"
1595
file_id = self.tt.final_file_id(trans_id)
1596
c = _mod_conflicts.Conflict.factory('path conflict', path=this_path,
1597
conflict_path=other_path,
1642
1599
self.cooked_conflicts.append(c)
1643
1600
self.cooked_conflicts.sort(key=_mod_conflicts.Conflict.sort_key)
1750
1707
osutils.rmtree(temp_dir)
1753
class PathNotInTree(errors.BzrError):
1755
_fmt = """Merge-into failed because %(tree)s does not contain %(path)s."""
1757
def __init__(self, path, tree):
1758
errors.BzrError.__init__(self, path=path, tree=tree)
1761
class MergeIntoMerger(Merger):
1762
"""Merger that understands other_tree will be merged into a subdir.
1764
This also changes the Merger api so that it uses real Branch, revision_id,
1765
and RevisonTree objects, rather than using revision specs.
1768
def __init__(self, this_tree, other_branch, other_tree, target_subdir,
1769
source_subpath, other_rev_id=None):
1770
"""Create a new MergeIntoMerger object.
1772
source_subpath in other_tree will be effectively copied to
1773
target_subdir in this_tree.
1775
:param this_tree: The tree that we will be merging into.
1776
:param other_branch: The Branch we will be merging from.
1777
:param other_tree: The RevisionTree object we want to merge.
1778
:param target_subdir: The relative path where we want to merge
1779
other_tree into this_tree
1780
:param source_subpath: The relative path specifying the subtree of
1781
other_tree to merge into this_tree.
1783
# It is assumed that we are merging a tree that is not in our current
1784
# ancestry, which means we are using the "EmptyTree" as our basis.
1785
null_ancestor_tree = this_tree.branch.repository.revision_tree(
1786
_mod_revision.NULL_REVISION)
1787
super(MergeIntoMerger, self).__init__(
1788
this_branch=this_tree.branch,
1789
this_tree=this_tree,
1790
other_tree=other_tree,
1791
base_tree=null_ancestor_tree,
1793
self._target_subdir = target_subdir
1794
self._source_subpath = source_subpath
1795
self.other_branch = other_branch
1796
if other_rev_id is None:
1797
other_rev_id = other_tree.get_revision_id()
1798
self.other_rev_id = self.other_basis = other_rev_id
1799
self.base_is_ancestor = True
1800
self.backup_files = True
1801
self.merge_type = Merge3Merger
1802
self.show_base = False
1803
self.reprocess = False
1804
self.interesting_ids = None
1805
self.merge_type = _MergeTypeParameterizer(MergeIntoMergeType,
1806
target_subdir=self._target_subdir,
1807
source_subpath=self._source_subpath)
1808
if self._source_subpath != '':
1809
# If this isn't a partial merge make sure the revisions will be
1811
self._maybe_fetch(self.other_branch, self.this_branch,
1814
def set_pending(self):
1815
if self._source_subpath != '':
1817
Merger.set_pending(self)
1820
class _MergeTypeParameterizer(object):
1821
"""Wrap a merge-type class to provide extra parameters.
1823
This is hack used by MergeIntoMerger to pass some extra parameters to its
1824
merge_type. Merger.do_merge() sets up its own set of parameters to pass to
1825
the 'merge_type' member. It is difficult override do_merge without
1826
re-writing the whole thing, so instead we create a wrapper which will pass
1827
the extra parameters.
1830
def __init__(self, merge_type, **kwargs):
1831
self._extra_kwargs = kwargs
1832
self._merge_type = merge_type
1834
def __call__(self, *args, **kwargs):
1835
kwargs.update(self._extra_kwargs)
1836
return self._merge_type(*args, **kwargs)
1838
def __getattr__(self, name):
1839
return getattr(self._merge_type, name)
1842
class MergeIntoMergeType(Merge3Merger):
1843
"""Merger that incorporates a tree (or part of a tree) into another."""
1845
def __init__(self, *args, **kwargs):
1846
"""Initialize the merger object.
1848
:param args: See Merge3Merger.__init__'s args.
1849
:param kwargs: See Merge3Merger.__init__'s keyword args, except for
1850
source_subpath and target_subdir.
1851
:keyword source_subpath: The relative path specifying the subtree of
1852
other_tree to merge into this_tree.
1853
:keyword target_subdir: The relative path where we want to merge
1854
other_tree into this_tree
1856
# All of the interesting work happens during Merge3Merger.__init__(),
1857
# so we have have to hack in to get our extra parameters set.
1858
self._source_subpath = kwargs.pop('source_subpath')
1859
self._target_subdir = kwargs.pop('target_subdir')
1860
super(MergeIntoMergeType, self).__init__(*args, **kwargs)
1862
def _compute_transform(self):
1863
child_pb = ui.ui_factory.nested_progress_bar()
1865
entries = self._entries_to_incorporate()
1866
entries = list(entries)
1867
for num, (entry, parent_id) in enumerate(entries):
1868
child_pb.update(gettext('Preparing file merge'), num, len(entries))
1869
parent_trans_id = self.tt.trans_id_file_id(parent_id)
1870
trans_id = transform.new_by_entry(self.tt, entry,
1871
parent_trans_id, self.other_tree)
1874
self._finish_computing_transform()
1876
def _entries_to_incorporate(self):
1877
"""Yields pairs of (inventory_entry, new_parent)."""
1878
other_inv = self.other_tree.root_inventory
1879
subdir_id = other_inv.path2id(self._source_subpath)
1880
if subdir_id is None:
1881
# XXX: The error would be clearer if it gave the URL of the source
1882
# branch, but we don't have a reference to that here.
1883
raise PathNotInTree(self._source_subpath, "Source tree")
1884
subdir = other_inv[subdir_id]
1885
parent_in_target = osutils.dirname(self._target_subdir)
1886
target_id = self.this_tree.path2id(parent_in_target)
1887
if target_id is None:
1888
raise PathNotInTree(self._target_subdir, "Target tree")
1889
name_in_target = osutils.basename(self._target_subdir)
1890
merge_into_root = subdir.copy()
1891
merge_into_root.name = name_in_target
1892
if self.this_tree.has_id(merge_into_root.file_id):
1893
# Give the root a new file-id.
1894
# This can happen fairly easily if the directory we are
1895
# incorporating is the root, and both trees have 'TREE_ROOT' as
1896
# their root_id. Users will expect this to Just Work, so we
1897
# change the file-id here.
1898
# Non-root file-ids could potentially conflict too. That's really
1899
# an edge case, so we don't do anything special for those. We let
1900
# them cause conflicts.
1901
merge_into_root.file_id = generate_ids.gen_file_id(name_in_target)
1902
yield (merge_into_root, target_id)
1903
if subdir.kind != 'directory':
1904
# No children, so we are done.
1906
for ignored_path, entry in other_inv.iter_entries_by_dir(subdir_id):
1907
parent_id = entry.parent_id
1908
if parent_id == subdir.file_id:
1909
# The root's parent ID has changed, so make sure children of
1910
# the root refer to the new ID.
1911
parent_id = merge_into_root.file_id
1912
yield (entry, parent_id)
1915
1710
def merge_inner(this_branch, other_tree, base_tree, ignore_zero=False,
1916
1711
backup_files=False,
1917
1712
merge_type=Merge3Merger,