14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
from itertools import chain
19
23
from bzrlib import (
20
branch as _mod_branch,
21
conflicts as _mod_conflicts,
25
26
graph as _mod_graph,
30
30
revision as _mod_revision,
39
from bzrlib.cleanup import OperationWithCleanups
40
from bzrlib.symbol_versioning import (
34
from bzrlib.branch import Branch
35
from bzrlib.conflicts import ConflictList, Conflict
36
from bzrlib.errors import (BzrCommandError,
46
WorkingTreeNotRevision,
49
from bzrlib.graph import Graph
50
from bzrlib.merge3 import Merge3
51
from bzrlib.osutils import rename, pathjoin
52
from progress import DummyProgress, ProgressPhase
53
from bzrlib.revision import (NULL_REVISION, ensure_null)
54
from bzrlib.textfile import check_text_lines
55
from bzrlib.trace import mutter, warning, note, is_quiet
56
from bzrlib.transform import (TransformPreview, TreeTransform,
57
resolve_conflicts, cook_conflicts,
58
conflict_pass, FinalPaths, create_from_tree,
59
unique_add, ROOT_PARENT)
60
from bzrlib.versionedfile import PlanWeaveMerge
44
63
# TODO: Report back as changes are merged in
47
66
def transform_tree(from_tree, to_tree, interesting_ids=None):
48
from_tree.lock_tree_write()
49
operation = OperationWithCleanups(merge_inner)
50
operation.add_cleanup(from_tree.unlock)
51
operation.run_simple(from_tree.branch, to_tree, from_tree,
52
ignore_zero=True, interesting_ids=interesting_ids, this_tree=from_tree)
55
class MergeHooks(hooks.Hooks):
58
hooks.Hooks.__init__(self)
59
self.create_hook(hooks.HookPoint('merge_file_content',
60
"Called with a bzrlib.merge.Merger object to create a per file "
61
"merge object when starting a merge. "
62
"Should return either None or a subclass of "
63
"``bzrlib.merge.AbstractPerFileMerger``. "
64
"Such objects will then be called per file "
65
"that needs to be merged (including when one "
66
"side has deleted the file and the other has changed it). "
67
"See the AbstractPerFileMerger API docs for details on how it is "
72
class AbstractPerFileMerger(object):
73
"""PerFileMerger objects are used by plugins extending merge for bzrlib.
75
See ``bzrlib.plugins.news_merge.news_merge`` for an example concrete class.
77
:ivar merger: The Merge3Merger performing the merge.
80
def __init__(self, merger):
81
"""Create a PerFileMerger for use with merger."""
84
def merge_contents(self, merge_params):
85
"""Attempt to merge the contents of a single file.
87
:param merge_params: A bzrlib.merge.MergeHookParams
88
:return : A tuple of (status, chunks), where status is one of
89
'not_applicable', 'success', 'conflicted', or 'delete'. If status
90
is 'success' or 'conflicted', then chunks should be an iterable of
91
strings for the new file contents.
93
return ('not applicable', None)
96
class PerFileMerger(AbstractPerFileMerger):
97
"""Merge individual files when self.file_matches returns True.
99
This class is intended to be subclassed. The file_matches and
100
merge_matching methods should be overridden with concrete implementations.
103
def file_matches(self, params):
104
"""Return True if merge_matching should be called on this file.
106
Only called with merges of plain files with no clear winner.
108
Subclasses must override this.
110
raise NotImplementedError(self.file_matches)
112
def get_filename(self, params, tree):
113
"""Lookup the filename (i.e. basename, not path), given a Tree (e.g.
114
self.merger.this_tree) and a MergeHookParams.
116
return osutils.basename(tree.id2path(params.file_id))
118
def get_filepath(self, params, tree):
119
"""Calculate the path to the file in a tree.
121
:param params: A MergeHookParams describing the file to merge
122
:param tree: a Tree, e.g. self.merger.this_tree.
124
return tree.id2path(params.file_id)
126
def merge_contents(self, params):
127
"""Merge the contents of a single file."""
128
# Check whether this custom merge logic should be used.
130
# OTHER is a straight winner, rely on default merge.
131
params.winner == 'other' or
132
# THIS and OTHER aren't both files.
133
not params.is_file_merge() or
134
# The filename doesn't match *.xml
135
not self.file_matches(params)):
136
return 'not_applicable', None
137
return self.merge_matching(params)
139
def merge_matching(self, params):
140
"""Merge the contents of a single file that has matched the criteria
141
in PerFileMerger.merge_contents (is a conflict, is a file,
142
self.file_matches is True).
144
Subclasses must override this.
146
raise NotImplementedError(self.merge_matching)
149
class ConfigurableFileMerger(PerFileMerger):
150
"""Merge individual files when configured via a .conf file.
152
This is a base class for concrete custom file merging logic. Concrete
153
classes should implement ``merge_text``.
155
See ``bzrlib.plugins.news_merge.news_merge`` for an example concrete class.
157
:ivar affected_files: The configured file paths to merge.
159
:cvar name_prefix: The prefix to use when looking up configuration
160
details. <name_prefix>_merge_files describes the files targeted by the
163
:cvar default_files: The default file paths to merge when no configuration
170
def __init__(self, merger):
171
super(ConfigurableFileMerger, self).__init__(merger)
172
self.affected_files = None
173
self.default_files = self.__class__.default_files or []
174
self.name_prefix = self.__class__.name_prefix
175
if self.name_prefix is None:
176
raise ValueError("name_prefix must be set.")
178
def file_matches(self, params):
179
"""Check whether the file should call the merge hook.
181
<name_prefix>_merge_files configuration variable is a list of files
182
that should use the hook.
184
affected_files = self.affected_files
185
if affected_files is None:
186
config = self.merger.this_branch.get_config()
187
# Until bzr provides a better policy for caching the config, we
188
# just add the part we're interested in to the params to avoid
189
# reading the config files repeatedly (bazaar.conf, location.conf,
191
config_key = self.name_prefix + '_merge_files'
192
affected_files = config.get_user_option_as_list(config_key)
193
if affected_files is None:
194
# If nothing was specified in the config, use the default.
195
affected_files = self.default_files
196
self.affected_files = affected_files
198
filepath = self.get_filepath(params, self.merger.this_tree)
199
if filepath in affected_files:
203
def merge_matching(self, params):
204
return self.merge_text(params)
206
def merge_text(self, params):
207
"""Merge the byte contents of a single file.
209
This is called after checking that the merge should be performed in
210
merge_contents, and it should behave as per
211
``bzrlib.merge.AbstractPerFileMerger.merge_contents``.
213
raise NotImplementedError(self.merge_text)
216
class MergeHookParams(object):
217
"""Object holding parameters passed to merge_file_content hooks.
219
There are some fields hooks can access:
221
:ivar file_id: the file ID of the file being merged
222
:ivar trans_id: the transform ID for the merge of this file
223
:ivar this_kind: kind of file_id in 'this' tree
224
:ivar other_kind: kind of file_id in 'other' tree
225
:ivar winner: one of 'this', 'other', 'conflict'
228
def __init__(self, merger, file_id, trans_id, this_kind, other_kind,
230
self._merger = merger
231
self.file_id = file_id
232
self.trans_id = trans_id
233
self.this_kind = this_kind
234
self.other_kind = other_kind
237
def is_file_merge(self):
238
"""True if this_kind and other_kind are both 'file'."""
239
return self.this_kind == 'file' and self.other_kind == 'file'
241
@decorators.cachedproperty
242
def base_lines(self):
243
"""The lines of the 'base' version of the file."""
244
return self._merger.get_lines(self._merger.base_tree, self.file_id)
246
@decorators.cachedproperty
247
def this_lines(self):
248
"""The lines of the 'this' version of the file."""
249
return self._merger.get_lines(self._merger.this_tree, self.file_id)
251
@decorators.cachedproperty
252
def other_lines(self):
253
"""The lines of the 'other' version of the file."""
254
return self._merger.get_lines(self._merger.other_tree, self.file_id)
67
merge_inner(from_tree.branch, to_tree, from_tree, ignore_zero=True,
68
interesting_ids=interesting_ids, this_tree=from_tree)
257
71
class Merger(object):
261
72
def __init__(self, this_branch, other_tree=None, base_tree=None,
262
73
this_tree=None, pb=None, change_reporter=None,
263
74
recurse='down', revision_graph=None):
458
257
if self.this_rev_id is None:
459
258
if self.this_basis_tree.get_file_sha1(file_id) != \
460
259
self.this_tree.get_file_sha1(file_id):
461
raise errors.WorkingTreeNotRevision(self.this_tree)
260
raise WorkingTreeNotRevision(self.this_tree)
463
262
trees = (self.this_basis_tree, self.other_tree)
464
263
return [get_id(tree, file_id) for tree in trees]
466
@deprecated_method(deprecated_in((2, 1, 0)))
467
265
def check_basis(self, check_clean, require_commits=True):
468
266
if self.this_basis is None and require_commits is True:
469
raise errors.BzrCommandError(
470
"This branch has no commits."
471
" (perhaps you would prefer 'bzr pull')")
267
raise BzrCommandError("This branch has no commits."
268
" (perhaps you would prefer 'bzr pull')")
473
270
self.compare_basis()
474
271
if self.this_basis != self.this_rev_id:
475
272
raise errors.UncommittedChanges(self.this_tree)
477
@deprecated_method(deprecated_in((2, 1, 0)))
478
274
def compare_basis(self):
480
276
basis_tree = self.revision_tree(self.this_tree.last_revision())
481
277
except errors.NoSuchRevision:
482
278
basis_tree = self.this_tree.basis_tree()
483
if not self.this_tree.has_changes(basis_tree):
279
changes = self.this_tree.changes_from(basis_tree)
280
if not changes.has_changed():
484
281
self.this_rev_id = self.this_basis
486
283
def set_interesting_files(self, file_list):
487
284
self.interesting_files = file_list
489
286
def set_pending(self):
490
if (not self.base_is_ancestor or not self.base_is_other_ancestor
491
or self.other_rev_id is None):
287
if not self.base_is_ancestor or not self.base_is_other_ancestor or self.other_rev_id is None:
493
289
self._add_parent()
495
291
def _add_parent(self):
496
292
new_parents = self.this_tree.get_parent_ids() + [self.other_rev_id]
497
293
new_parent_trees = []
498
operation = OperationWithCleanups(self.this_tree.set_parent_trees)
499
294
for revision_id in new_parents:
501
296
tree = self.revision_tree(revision_id)
788
587
# making sure we haven't missed any corner cases.
789
588
# if lca_trees is None:
790
589
# self._lca_trees = [self.base_tree]
791
592
self.change_reporter = change_reporter
792
593
self.cherrypick = cherrypick
595
self.pp = ProgressPhase("Merge phase", 3, self.pb)
796
warnings.warn("pp argument to Merge3Merger is deprecated")
798
warnings.warn("pb argument to Merge3Merger is deprecated")
800
599
def do_merge(self):
801
operation = OperationWithCleanups(self._do_merge)
802
600
self.this_tree.lock_tree_write()
803
operation.add_cleanup(self.this_tree.unlock)
804
601
self.base_tree.lock_read()
805
operation.add_cleanup(self.base_tree.unlock)
806
602
self.other_tree.lock_read()
807
operation.add_cleanup(self.other_tree.unlock)
810
def _do_merge(self, operation):
811
self.tt = transform.TreeTransform(self.this_tree, None)
812
operation.add_cleanup(self.tt.finalize)
813
self._compute_transform()
814
results = self.tt.apply(no_conflicts=True)
815
self.write_modified(results)
603
self.tt = TreeTransform(self.this_tree, self.pb)
817
self.this_tree.add_conflicts(self.cooked_conflicts)
818
except errors.UnsupportedOperation:
606
self._compute_transform()
608
results = self.tt.apply(no_conflicts=True)
609
self.write_modified(results)
611
self.this_tree.add_conflicts(self.cooked_conflicts)
612
except UnsupportedOperation:
616
self.other_tree.unlock()
617
self.base_tree.unlock()
618
self.this_tree.unlock()
821
621
def make_preview_transform(self):
822
operation = OperationWithCleanups(self._make_preview_transform)
823
622
self.base_tree.lock_read()
824
operation.add_cleanup(self.base_tree.unlock)
825
623
self.other_tree.lock_read()
826
operation.add_cleanup(self.other_tree.unlock)
827
return operation.run_simple()
829
def _make_preview_transform(self):
830
self.tt = transform.TransformPreview(self.this_tree)
831
self._compute_transform()
624
self.tt = TransformPreview(self.this_tree)
627
self._compute_transform()
630
self.other_tree.unlock()
631
self.base_tree.unlock()
834
635
def _compute_transform(self):
1086
886
other_root = self.tt.trans_id_file_id(other_root_file_id)
1087
887
if other_root == self.tt.root:
890
self.tt.final_kind(other_root)
1089
893
if self.other_tree.inventory.root.file_id in self.this_tree.inventory:
1090
# the other tree's root is a non-root in the current tree (as when
1091
# a previously unrelated branch is merged into another)
894
# the other tree's root is a non-root in the current tree
1094
self.tt.final_kind(other_root)
1095
other_root_is_present = True
1096
except errors.NoSuchFile:
1097
# other_root doesn't have a physical representation. We still need
1098
# to move any references to the actual root of the tree.
1099
other_root_is_present = False
1100
# 'other_tree.inventory.root' is not present in this tree. We are
1101
# calling adjust_path for children which *want* to be present with a
1102
# correct place to go.
1103
for thing, child in self.other_tree.inventory.root.children.iteritems():
896
self.reparent_children(self.other_tree.inventory.root, self.tt.root)
897
self.tt.cancel_creation(other_root)
898
self.tt.cancel_versioning(other_root)
900
def reparent_children(self, ie, target):
901
for thing, child in ie.children.iteritems():
1104
902
trans_id = self.tt.trans_id_file_id(child.file_id)
1105
if not other_root_is_present:
1106
# FIXME: Make final_kind returns None instead of raising
1107
# NoSuchFile to avoid the ugly construct below -- vila 20100402
1109
self.tt.final_kind(trans_id)
1110
# The item exist in the final tree and has a defined place
1113
except errors.NoSuchFile, e:
1115
# Move the item into the root
1116
self.tt.adjust_path(self.tt.final_name(trans_id),
1117
self.tt.root, trans_id)
1118
if other_root_is_present:
1119
self.tt.cancel_creation(other_root)
1120
self.tt.cancel_versioning(other_root)
903
self.tt.adjust_path(self.tt.final_name(trans_id), target, trans_id)
1122
905
def write_modified(self, results):
1123
906
modified_hashes = {}
1291
1071
parent_id_winner = "other"
1292
1072
if name_winner == "this" and parent_id_winner == "this":
1294
if name_winner == 'conflict' or parent_id_winner == 'conflict':
1295
# Creating helpers (.OTHER or .THIS) here cause problems down the
1296
# road if a ContentConflict needs to be created so we should not do
1298
trans_id = self.tt.trans_id_file_id(file_id)
1299
self._raw_conflicts.append(('path conflict', trans_id, file_id,
1300
this_parent, this_name,
1301
other_parent, other_name))
1074
if name_winner == "conflict":
1075
trans_id = self.tt.trans_id_file_id(file_id)
1076
self._raw_conflicts.append(('name conflict', trans_id,
1077
this_name, other_name))
1078
if parent_id_winner == "conflict":
1079
trans_id = self.tt.trans_id_file_id(file_id)
1080
self._raw_conflicts.append(('parent conflict', trans_id,
1081
this_parent, other_parent))
1302
1082
if other_name is None:
1303
1083
# it doesn't matter whether the result was 'other' or
1304
1084
# 'conflict'-- if there's no 'other', we leave it alone.
1086
# if we get here, name_winner and parent_winner are set to safe values.
1087
trans_id = self.tt.trans_id_file_id(file_id)
1306
1088
parent_id = parents[self.winner_idx[parent_id_winner]]
1307
1089
if parent_id is not None:
1308
# if we get here, name_winner and parent_winner are set to safe
1090
parent_trans_id = self.tt.trans_id_file_id(parent_id)
1310
1091
self.tt.adjust_path(names[self.winner_idx[name_winner]],
1311
self.tt.trans_id_file_id(parent_id),
1312
self.tt.trans_id_file_id(file_id))
1092
parent_trans_id, trans_id)
1314
def _do_merge_contents(self, file_id):
1094
def merge_contents(self, file_id):
1315
1095
"""Performs a merge on file_id contents."""
1316
1096
def contents_pair(tree):
1317
1097
if file_id not in tree:
1346
1138
if winner == 'this':
1347
1139
# No interesting changes introduced by OTHER
1348
1140
return "unmodified"
1349
# We have a hypothetical conflict, but if we have files, then we
1350
# can try to merge the content
1351
1141
trans_id = self.tt.trans_id_file_id(file_id)
1352
params = MergeHookParams(self, file_id, trans_id, this_pair[0],
1353
other_pair[0], winner)
1354
hooks = self.active_hooks
1355
hook_status = 'not_applicable'
1357
hook_status, lines = hook.merge_contents(params)
1358
if hook_status != 'not_applicable':
1359
# Don't try any more hooks, this one applies.
1362
if hook_status == 'not_applicable':
1363
# This is a contents conflict, because none of the available
1364
# functions could merge it.
1366
name = self.tt.final_name(trans_id)
1367
parent_id = self.tt.final_parent(trans_id)
1368
if self.this_tree.has_id(file_id):
1369
self.tt.unversion_file(trans_id)
1370
file_group = self._dump_conflicts(name, parent_id, file_id,
1372
self._raw_conflicts.append(('contents conflict', file_group))
1373
elif hook_status == 'success':
1374
self.tt.create_file(lines, trans_id)
1375
elif hook_status == 'conflicted':
1376
# XXX: perhaps the hook should be able to provide
1377
# the BASE/THIS/OTHER files?
1378
self.tt.create_file(lines, trans_id)
1379
self._raw_conflicts.append(('text conflict', trans_id))
1380
name = self.tt.final_name(trans_id)
1381
parent_id = self.tt.final_parent(trans_id)
1382
self._dump_conflicts(name, parent_id, file_id)
1383
elif hook_status == 'delete':
1384
self.tt.unversion_file(trans_id)
1386
elif hook_status == 'done':
1387
# The hook function did whatever it needs to do directly, no
1388
# further action needed here.
1391
raise AssertionError('unknown hook_status: %r' % (hook_status,))
1392
if not self.this_tree.has_id(file_id) and result == "modified":
1393
self.tt.version_file(file_id, trans_id)
1394
# The merge has been performed, so the old contents should not be
1397
self.tt.delete_contents(trans_id)
1398
except errors.NoSuchFile:
1402
def _default_other_winner_merge(self, merge_hook_params):
1403
"""Replace this contents with other."""
1404
file_id = merge_hook_params.file_id
1405
trans_id = merge_hook_params.trans_id
1406
file_in_this = self.this_tree.has_id(file_id)
1407
if self.other_tree.has_id(file_id):
1408
# OTHER changed the file
1410
if wt.supports_content_filtering():
1411
# We get the path from the working tree if it exists.
1412
# That fails though when OTHER is adding a file, so
1413
# we fall back to the other tree to find the path if
1414
# it doesn't exist locally.
1416
filter_tree_path = wt.id2path(file_id)
1417
except errors.NoSuchId:
1418
filter_tree_path = self.other_tree.id2path(file_id)
1420
# Skip the id2path lookup for older formats
1421
filter_tree_path = None
1422
transform.create_from_tree(self.tt, trans_id,
1423
self.other_tree, file_id,
1424
filter_tree_path=filter_tree_path)
1427
# OTHER deleted the file
1428
return 'delete', None
1430
raise AssertionError(
1431
'winner is OTHER, but file_id %r not in THIS or OTHER tree'
1434
def merge_contents(self, merge_hook_params):
1435
"""Fallback merge logic after user installed hooks."""
1436
# This function is used in merge hooks as the fallback instance.
1437
# Perhaps making this function and the functions it calls be a
1438
# a separate class would be better.
1439
if merge_hook_params.winner == 'other':
1142
if winner == 'other':
1440
1143
# OTHER is a straight winner, so replace this contents with other
1441
return self._default_other_winner_merge(merge_hook_params)
1442
elif merge_hook_params.is_file_merge():
1443
# THIS and OTHER are both files, so text merge. Either
1444
# BASE is a file, or both converted to files, so at least we
1445
# have agreement that output should be a file.
1447
self.text_merge(merge_hook_params.file_id,
1448
merge_hook_params.trans_id)
1449
except errors.BinaryFile:
1450
return 'not_applicable', None
1144
file_in_this = file_id in self.this_tree
1146
# Remove any existing contents
1147
self.tt.delete_contents(trans_id)
1148
if file_id in self.other_tree:
1149
# OTHER changed the file
1150
create_from_tree(self.tt, trans_id,
1151
self.other_tree, file_id)
1152
if not file_in_this:
1153
self.tt.version_file(file_id, trans_id)
1156
# OTHER deleted the file
1157
self.tt.unversion_file(trans_id)
1453
return 'not_applicable', None
1160
# We have a hypothetical conflict, but if we have files, then we
1161
# can try to merge the content
1162
if this_pair[0] == 'file' and other_pair[0] == 'file':
1163
# THIS and OTHER are both files, so text merge. Either
1164
# BASE is a file, or both converted to files, so at least we
1165
# have agreement that output should be a file.
1167
self.text_merge(file_id, trans_id)
1169
return contents_conflict()
1170
if file_id not in self.this_tree:
1171
self.tt.version_file(file_id, trans_id)
1173
self.tt.tree_kind(trans_id)
1174
self.tt.delete_contents(trans_id)
1179
return contents_conflict()
1455
1181
def get_lines(self, tree, file_id):
1456
1182
"""Return the lines in a file, or an empty list."""
1457
if tree.has_id(file_id):
1458
1184
return tree.get_file(file_id).readlines()
1629
1328
if path.endswith(suffix):
1630
1329
path = path[:-len(suffix)]
1632
c = _mod_conflicts.Conflict.factory(conflict_type,
1633
path=path, file_id=file_id)
1634
elif conflict_type == 'text conflict':
1331
c = Conflict.factory(conflict_type, path=path, file_id=file_id)
1332
self.cooked_conflicts.append(c)
1333
if conflict_type == 'text conflict':
1635
1334
trans_id = conflict[1]
1636
1335
path = fp.get_path(trans_id)
1637
1336
file_id = self.tt.final_file_id(trans_id)
1638
c = _mod_conflicts.Conflict.factory(conflict_type,
1639
path=path, file_id=file_id)
1337
c = Conflict.factory(conflict_type, path=path, file_id=file_id)
1338
self.cooked_conflicts.append(c)
1340
for trans_id, conflicts in name_conflicts.iteritems():
1342
this_parent, other_parent = conflicts['parent conflict']
1343
if this_parent == other_parent:
1344
raise AssertionError()
1346
this_parent = other_parent = \
1347
self.tt.final_file_id(self.tt.final_parent(trans_id))
1349
this_name, other_name = conflicts['name conflict']
1350
if this_name == other_name:
1351
raise AssertionError()
1353
this_name = other_name = self.tt.final_name(trans_id)
1354
other_path = fp.get_path(trans_id)
1355
if this_parent is not None and this_name is not None:
1356
this_parent_path = \
1357
fp.get_path(self.tt.trans_id_file_id(this_parent))
1358
this_path = pathjoin(this_parent_path, this_name)
1641
raise AssertionError('bad conflict type: %r' % (conflict,))
1360
this_path = "<deleted>"
1361
file_id = self.tt.final_file_id(trans_id)
1362
c = Conflict.factory('path conflict', path=this_path,
1363
conflict_path=other_path, file_id=file_id)
1642
1364
self.cooked_conflicts.append(c)
1643
self.cooked_conflicts.sort(key=_mod_conflicts.Conflict.sort_key)
1365
self.cooked_conflicts.sort(key=Conflict.sort_key)
1646
1368
class WeaveMerger(Merge3Merger):
1650
1372
supports_reverse_cherrypick = False
1651
1373
history_based = True
1653
def _generate_merge_plan(self, file_id, base):
1654
return self.this_tree.plan_file_merge(file_id, self.other_tree,
1375
def _merged_lines(self, file_id):
1376
"""Generate the merged lines.
1377
There is no distinction between lines that are meant to contain <<<<<<<
1381
base = self.base_tree
1384
plan = self.this_tree.plan_file_merge(file_id, self.other_tree,
1657
def _merged_lines(self, file_id):
1658
"""Generate the merged lines.
1659
There is no distinction between lines that are meant to contain <<<<<<<
1663
base = self.base_tree
1666
plan = self._generate_merge_plan(file_id, base)
1667
1386
if 'merge' in debug.debug_flags:
1668
1387
plan = list(plan)
1669
1388
trans_id = self.tt.trans_id_file_id(file_id)
1670
1389
name = self.tt.final_name(trans_id) + '.plan'
1671
contents = ('%11s|%s' % l for l in plan)
1390
contents = ('%10s|%s' % l for l in plan)
1672
1391
self.tt.new_file(name, self.tt.final_parent(trans_id), contents)
1673
textmerge = versionedfile.PlanWeaveMerge(plan, '<<<<<<< TREE\n',
1674
'>>>>>>> MERGE-SOURCE\n')
1675
lines, conflicts = textmerge.merge_lines(self.reprocess)
1677
base_lines = textmerge.base_from_plan()
1680
return lines, base_lines
1392
textmerge = PlanWeaveMerge(plan, '<<<<<<< TREE\n',
1393
'>>>>>>> MERGE-SOURCE\n')
1394
return textmerge.merge_lines(self.reprocess)
1682
1396
def text_merge(self, file_id, trans_id):
1683
1397
"""Perform a (weave) text merge for a given file and file-id.
1684
1398
If conflicts are encountered, .THIS and .OTHER files will be emitted,
1685
1399
and a conflict will be noted.
1687
lines, base_lines = self._merged_lines(file_id)
1401
lines, conflicts = self._merged_lines(file_id)
1688
1402
lines = list(lines)
1689
1403
# Note we're checking whether the OUTPUT is binary in this case,
1690
1404
# because we don't want to get into weave merge guts.
1691
textfile.check_text_lines(lines)
1405
check_text_lines(lines)
1692
1406
self.tt.create_file(lines, trans_id)
1693
if base_lines is not None:
1695
1408
self._raw_conflicts.append(('text conflict', trans_id))
1696
1409
name = self.tt.final_name(trans_id)
1697
1410
parent_id = self.tt.final_parent(trans_id)
1698
1411
file_group = self._dump_conflicts(name, parent_id, file_id,
1700
base_lines=base_lines)
1701
1413
file_group.append(trans_id)
1704
1416
class LCAMerger(WeaveMerger):
1706
def _generate_merge_plan(self, file_id, base):
1707
return self.this_tree.plan_file_lca_merge(file_id, self.other_tree,
1418
def _merged_lines(self, file_id):
1419
"""Generate the merged lines.
1420
There is no distinction between lines that are meant to contain <<<<<<<
1424
base = self.base_tree
1427
plan = self.this_tree.plan_file_lca_merge(file_id, self.other_tree,
1429
if 'merge' in debug.debug_flags:
1431
trans_id = self.tt.trans_id_file_id(file_id)
1432
name = self.tt.final_name(trans_id) + '.plan'
1433
contents = ('%10s|%s' % l for l in plan)
1434
self.tt.new_file(name, self.tt.final_parent(trans_id), contents)
1435
textmerge = PlanWeaveMerge(plan, '<<<<<<< TREE\n',
1436
'>>>>>>> MERGE-SOURCE\n')
1437
return textmerge.merge_lines(self.reprocess)
1710
1440
class Diff3Merger(Merge3Merger):
1711
1441
"""Three-way merger using external diff3 for text merging"""
1713
1443
def dump_file(self, temp_dir, name, tree, file_id):
1714
out_path = osutils.pathjoin(temp_dir, name)
1444
out_path = pathjoin(temp_dir, name)
1715
1445
out_file = open(out_path, "wb")
1717
1447
in_file = tree.get_file(file_id)