263
@deprecated_function(zero_eight)
264
def show_diff(b, from_spec, specific_files, external_diff_options=None,
265
revision2=None, output=None, b2=None):
266
"""Shortcut for showing the diff to the working tree.
268
Please use show_diff_trees instead.
274
None for 'basis tree', or otherwise the old revision to compare against.
276
The more general form is show_diff_trees(), where the caller
277
supplies any two trees.
282
if from_spec is None:
283
old_tree = b.bzrdir.open_workingtree()
285
old_tree = old_tree = old_tree.basis_tree()
287
old_tree = b.repository.revision_tree(from_spec.in_history(b).rev_id)
289
if revision2 is None:
291
new_tree = b.bzrdir.open_workingtree()
293
new_tree = b2.bzrdir.open_workingtree()
295
new_tree = b.repository.revision_tree(revision2.in_history(b).rev_id)
297
return show_diff_trees(old_tree, new_tree, output, specific_files,
298
external_diff_options)
301
def diff_cmd_helper(tree, specific_files, external_diff_options,
302
old_revision_spec=None, new_revision_spec=None,
303
old_label='a/', new_label='b/'):
304
"""Helper for cmd_diff.
310
The specific files to compare, or None
312
external_diff_options
313
If non-None, run an external diff, and pass it these options
316
If None, use basis tree as old revision, otherwise use the tree for
317
the specified revision.
320
If None, use working tree as new revision, otherwise use the tree for
321
the specified revision.
323
The more general form is show_diff_trees(), where the caller
324
supplies any two trees.
328
revision = spec.in_store(tree.branch)
330
revision = spec.in_store(None)
331
revision_id = revision.rev_id
332
branch = revision.branch
333
return branch.repository.revision_tree(revision_id)
334
if old_revision_spec is None:
335
old_tree = tree.basis_tree()
337
old_tree = spec_tree(old_revision_spec)
339
if new_revision_spec is None:
342
new_tree = spec_tree(new_revision_spec)
343
if new_tree is not tree:
344
extra_trees = (tree,)
348
return show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
349
external_diff_options,
350
old_label=old_label, new_label=new_label,
351
extra_trees=extra_trees)
275
def _get_trees_to_diff(path_list, revision_specs, old_url, new_url,
277
"""Get the trees and specific files to diff given a list of paths.
279
This method works out the trees to be diff'ed and the files of
280
interest within those trees.
283
the list of arguments passed to the diff command
284
:param revision_specs:
285
Zero, one or two RevisionSpecs from the diff command line,
286
saying what revisions to compare.
288
The url of the old branch or tree. If None, the tree to use is
289
taken from the first path, if any, or the current working tree.
291
The url of the new branch or tree. If None, the tree to use is
292
taken from the first path, if any, or the current working tree.
294
if True and a view is set, apply the view or check that the paths
297
a tuple of (old_tree, new_tree, specific_files, extra_trees) where
298
extra_trees is a sequence of additional trees to search in for
301
# Get the old and new revision specs
302
old_revision_spec = None
303
new_revision_spec = None
304
if revision_specs is not None:
305
if len(revision_specs) > 0:
306
old_revision_spec = revision_specs[0]
308
old_url = old_revision_spec.get_branch()
309
if len(revision_specs) > 1:
310
new_revision_spec = revision_specs[1]
312
new_url = new_revision_spec.get_branch()
315
make_paths_wt_relative = True
316
consider_relpath = True
317
if path_list is None or len(path_list) == 0:
318
# If no path is given, the current working tree is used
319
default_location = u'.'
320
consider_relpath = False
321
elif old_url is not None and new_url is not None:
322
other_paths = path_list
323
make_paths_wt_relative = False
325
default_location = path_list[0]
326
other_paths = path_list[1:]
328
# Get the old location
331
old_url = default_location
332
working_tree, branch, relpath = \
333
bzrdir.BzrDir.open_containing_tree_or_branch(old_url)
334
if consider_relpath and relpath != '':
335
if working_tree is not None and apply_view:
336
views.check_path_in_view(working_tree, relpath)
337
specific_files.append(relpath)
338
old_tree = _get_tree_to_diff(old_revision_spec, working_tree, branch)
340
# Get the new location
342
new_url = default_location
343
if new_url != old_url:
344
working_tree, branch, relpath = \
345
bzrdir.BzrDir.open_containing_tree_or_branch(new_url)
346
if consider_relpath and relpath != '':
347
if working_tree is not None and apply_view:
348
views.check_path_in_view(working_tree, relpath)
349
specific_files.append(relpath)
350
new_tree = _get_tree_to_diff(new_revision_spec, working_tree, branch,
351
basis_is_default=working_tree is None)
353
# Get the specific files (all files is None, no files is [])
354
if make_paths_wt_relative and working_tree is not None:
356
from bzrlib.builtins import safe_relpath_files
357
other_paths = safe_relpath_files(working_tree, other_paths,
358
apply_view=apply_view)
359
except errors.FileInWrongBranch:
360
raise errors.BzrCommandError("Files are in different branches")
361
specific_files.extend(other_paths)
362
if len(specific_files) == 0:
363
specific_files = None
364
if (working_tree is not None and working_tree.supports_views()
366
view_files = working_tree.views.lookup_view()
368
specific_files = view_files
369
view_str = views.view_display_str(view_files)
370
note("*** Ignoring files outside view. View is %s" % view_str)
372
# Get extra trees that ought to be searched for file-ids
374
if working_tree is not None and working_tree not in (old_tree, new_tree):
375
extra_trees = (working_tree,)
376
return old_tree, new_tree, specific_files, extra_trees
378
def _get_tree_to_diff(spec, tree=None, branch=None, basis_is_default=True):
379
if branch is None and tree is not None:
381
if spec is None or spec.spec is None:
384
return tree.basis_tree()
386
return branch.basis_tree()
389
return spec.as_tree(branch)
354
392
def show_diff_trees(old_tree, new_tree, to_file, specific_files=None,
355
393
external_diff_options=None,
356
394
old_label='a/', new_label='b/',
396
path_encoding='utf8',
358
398
"""Show in text form the changes from one tree to another.
361
If set, include only changes to these files.
404
Include only changes to these files - None for all changes.
363
406
external_diff_options
364
407
If set, use an external GNU diff and pass these options.
367
410
If set, more Trees to use for looking up file ids
413
If set, the path will be encoded as specified, otherwise is supposed
369
416
old_tree.lock_read()
418
if extra_trees is not None:
419
for tree in extra_trees:
371
421
new_tree.lock_read()
373
return _show_diff_trees(old_tree, new_tree, to_file,
374
specific_files, external_diff_options,
375
old_label=old_label, new_label=new_label,
376
extra_trees=extra_trees)
423
differ = DiffTree.from_trees_options(old_tree, new_tree, to_file,
425
external_diff_options,
426
old_label, new_label, using)
427
return differ.show_diff(specific_files, extra_trees)
378
429
new_tree.unlock()
430
if extra_trees is not None:
431
for tree in extra_trees:
380
434
old_tree.unlock()
383
def _show_diff_trees(old_tree, new_tree, to_file,
384
specific_files, external_diff_options,
385
old_label='a/', new_label='b/', extra_trees=None):
437
def _patch_header_date(tree, file_id, path):
438
"""Returns a timestamp suitable for use in a patch header."""
439
mtime = tree.get_file_mtime(file_id, path)
440
return timestamp.format_patch_date(mtime)
443
def get_executable_change(old_is_x, new_is_x):
444
descr = { True:"+x", False:"-x", None:"??" }
445
if old_is_x != new_is_x:
446
return ["%s to %s" % (descr[old_is_x], descr[new_is_x],)]
451
class DiffPath(object):
452
"""Base type for command object that compare files"""
454
# The type or contents of the file were unsuitable for diffing
455
CANNOT_DIFF = 'CANNOT_DIFF'
456
# The file has changed in a semantic way
458
# The file content may have changed, but there is no semantic change
459
UNCHANGED = 'UNCHANGED'
461
def __init__(self, old_tree, new_tree, to_file, path_encoding='utf-8'):
464
:param old_tree: The tree to show as the old tree in the comparison
465
:param new_tree: The tree to show as new in the comparison
466
:param to_file: The file to write comparison data to
467
:param path_encoding: The character encoding to write paths in
469
self.old_tree = old_tree
470
self.new_tree = new_tree
471
self.to_file = to_file
472
self.path_encoding = path_encoding
478
def from_diff_tree(klass, diff_tree):
479
return klass(diff_tree.old_tree, diff_tree.new_tree,
480
diff_tree.to_file, diff_tree.path_encoding)
483
def _diff_many(differs, file_id, old_path, new_path, old_kind, new_kind):
484
for file_differ in differs:
485
result = file_differ.diff(file_id, old_path, new_path, old_kind,
487
if result is not DiffPath.CANNOT_DIFF:
490
return DiffPath.CANNOT_DIFF
493
class DiffKindChange(object):
494
"""Special differ for file kind changes.
496
Represents kind change as deletion + creation. Uses the other differs
499
def __init__(self, differs):
500
self.differs = differs
506
def from_diff_tree(klass, diff_tree):
507
return klass(diff_tree.differs)
509
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
510
"""Perform comparison
512
:param file_id: The file_id of the file to compare
513
:param old_path: Path of the file in the old tree
514
:param new_path: Path of the file in the new tree
515
:param old_kind: Old file-kind of the file
516
:param new_kind: New file-kind of the file
518
if None in (old_kind, new_kind):
519
return DiffPath.CANNOT_DIFF
520
result = DiffPath._diff_many(self.differs, file_id, old_path,
521
new_path, old_kind, None)
522
if result is DiffPath.CANNOT_DIFF:
524
return DiffPath._diff_many(self.differs, file_id, old_path, new_path,
528
class DiffDirectory(DiffPath):
530
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
531
"""Perform comparison between two directories. (dummy)
534
if 'directory' not in (old_kind, new_kind):
535
return self.CANNOT_DIFF
536
if old_kind not in ('directory', None):
537
return self.CANNOT_DIFF
538
if new_kind not in ('directory', None):
539
return self.CANNOT_DIFF
543
class DiffSymlink(DiffPath):
545
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
546
"""Perform comparison between two symlinks
548
:param file_id: The file_id of the file to compare
549
:param old_path: Path of the file in the old tree
550
:param new_path: Path of the file in the new tree
551
:param old_kind: Old file-kind of the file
552
:param new_kind: New file-kind of the file
554
if 'symlink' not in (old_kind, new_kind):
555
return self.CANNOT_DIFF
556
if old_kind == 'symlink':
557
old_target = self.old_tree.get_symlink_target(file_id)
558
elif old_kind is None:
561
return self.CANNOT_DIFF
562
if new_kind == 'symlink':
563
new_target = self.new_tree.get_symlink_target(file_id)
564
elif new_kind is None:
567
return self.CANNOT_DIFF
568
return self.diff_symlink(old_target, new_target)
570
def diff_symlink(self, old_target, new_target):
571
if old_target is None:
572
self.to_file.write('=== target is %r\n' % new_target)
573
elif new_target is None:
574
self.to_file.write('=== target was %r\n' % old_target)
576
self.to_file.write('=== target changed %r => %r\n' %
577
(old_target, new_target))
581
class DiffText(DiffPath):
387
583
# GNU Patch uses the epoch date to detect files that are being added
388
584
# or removed in a diff.
389
585
EPOCH_DATE = '1970-01-01 00:00:00 +0000'
391
# TODO: Generation of pseudo-diffs for added/deleted files could
392
# be usefully made into a much faster special case.
394
if external_diff_options:
395
assert isinstance(external_diff_options, basestring)
396
opts = external_diff_options.split()
397
def diff_file(olab, olines, nlab, nlines, to_file):
398
external_diff(olab, olines, nlab, nlines, to_file, opts)
400
diff_file = internal_diff
402
delta = new_tree.changes_from(old_tree,
403
specific_files=specific_files,
404
extra_trees=extra_trees, require_versioned=True)
407
for path, file_id, kind in delta.removed:
409
print >>to_file, '=== removed %s %r' % (kind, path.encode('utf8'))
410
old_name = '%s%s\t%s' % (old_label, path,
411
_patch_header_date(old_tree, file_id, path))
412
new_name = '%s%s\t%s' % (new_label, path, EPOCH_DATE)
413
old_tree.inventory[file_id].diff(diff_file, old_name, old_tree,
414
new_name, None, None, to_file)
415
for path, file_id, kind in delta.added:
417
print >>to_file, '=== added %s %r' % (kind, path.encode('utf8'))
418
old_name = '%s%s\t%s' % (old_label, path, EPOCH_DATE)
419
new_name = '%s%s\t%s' % (new_label, path,
420
_patch_header_date(new_tree, file_id, path))
421
new_tree.inventory[file_id].diff(diff_file, new_name, new_tree,
422
old_name, None, None, to_file,
424
for (old_path, new_path, file_id, kind,
425
text_modified, meta_modified) in delta.renamed:
427
prop_str = get_prop_change(meta_modified)
428
print >>to_file, '=== renamed %s %r => %r%s' % (
429
kind, old_path.encode('utf8'),
430
new_path.encode('utf8'), prop_str)
431
old_name = '%s%s\t%s' % (old_label, old_path,
432
_patch_header_date(old_tree, file_id,
434
new_name = '%s%s\t%s' % (new_label, new_path,
435
_patch_header_date(new_tree, file_id,
437
_maybe_diff_file_or_symlink(old_name, old_tree, file_id,
439
text_modified, kind, to_file, diff_file)
440
for path, file_id, kind, text_modified, meta_modified in delta.modified:
442
prop_str = get_prop_change(meta_modified)
443
print >>to_file, '=== modified %s %r%s' % (kind, path.encode('utf8'), prop_str)
444
old_name = '%s%s\t%s' % (old_label, path,
445
_patch_header_date(old_tree, file_id, path))
446
new_name = '%s%s\t%s' % (new_label, path,
447
_patch_header_date(new_tree, file_id, path))
449
_maybe_diff_file_or_symlink(old_name, old_tree, file_id,
451
True, kind, to_file, diff_file)
456
def _patch_header_date(tree, file_id, path):
457
"""Returns a timestamp suitable for use in a patch header."""
458
tm = time.gmtime(tree.get_file_mtime(file_id, path))
459
return time.strftime('%Y-%m-%d %H:%M:%S +0000', tm)
462
def _raise_if_nonexistent(paths, old_tree, new_tree):
463
"""Complain if paths are not in either inventory or tree.
465
It's OK with the files exist in either tree's inventory, or
466
if they exist in the tree but are not versioned.
468
This can be used by operations such as bzr status that can accept
469
unknown or ignored files.
587
def __init__(self, old_tree, new_tree, to_file, path_encoding='utf-8',
588
old_label='', new_label='', text_differ=internal_diff):
589
DiffPath.__init__(self, old_tree, new_tree, to_file, path_encoding)
590
self.text_differ = text_differ
591
self.old_label = old_label
592
self.new_label = new_label
593
self.path_encoding = path_encoding
595
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
596
"""Compare two files in unified diff format
598
:param file_id: The file_id of the file to compare
599
:param old_path: Path of the file in the old tree
600
:param new_path: Path of the file in the new tree
601
:param old_kind: Old file-kind of the file
602
:param new_kind: New file-kind of the file
604
if 'file' not in (old_kind, new_kind):
605
return self.CANNOT_DIFF
606
from_file_id = to_file_id = file_id
607
if old_kind == 'file':
608
old_date = _patch_header_date(self.old_tree, file_id, old_path)
609
elif old_kind is None:
610
old_date = self.EPOCH_DATE
613
return self.CANNOT_DIFF
614
if new_kind == 'file':
615
new_date = _patch_header_date(self.new_tree, file_id, new_path)
616
elif new_kind is None:
617
new_date = self.EPOCH_DATE
620
return self.CANNOT_DIFF
621
from_label = '%s%s\t%s' % (self.old_label, old_path, old_date)
622
to_label = '%s%s\t%s' % (self.new_label, new_path, new_date)
623
return self.diff_text(from_file_id, to_file_id, from_label, to_label,
626
def diff_text(self, from_file_id, to_file_id, from_label, to_label,
627
from_path=None, to_path=None):
628
"""Diff the content of given files in two trees
630
:param from_file_id: The id of the file in the from tree. If None,
631
the file is not present in the from tree.
632
:param to_file_id: The id of the file in the to tree. This may refer
633
to a different file from from_file_id. If None,
634
the file is not present in the to tree.
635
:param from_path: The path in the from tree or None if unknown.
636
:param to_path: The path in the to tree or None if unknown.
638
def _get_text(tree, file_id, path):
639
if file_id is not None:
640
return tree.get_file(file_id, path).readlines()
644
from_text = _get_text(self.old_tree, from_file_id, from_path)
645
to_text = _get_text(self.new_tree, to_file_id, to_path)
646
self.text_differ(from_label, from_text, to_label, to_text,
648
except errors.BinaryFile:
650
("Binary files %s and %s differ\n" %
651
(from_label, to_label)).encode(self.path_encoding))
655
class DiffFromTool(DiffPath):
657
def __init__(self, command_template, old_tree, new_tree, to_file,
658
path_encoding='utf-8'):
659
DiffPath.__init__(self, old_tree, new_tree, to_file, path_encoding)
660
self.command_template = command_template
661
self._root = osutils.mkdtemp(prefix='bzr-diff-')
664
def from_string(klass, command_string, old_tree, new_tree, to_file,
665
path_encoding='utf-8'):
666
command_template = commands.shlex_split_unicode(command_string)
667
command_template.extend(['%(old_path)s', '%(new_path)s'])
668
return klass(command_template, old_tree, new_tree, to_file,
672
def make_from_diff_tree(klass, command_string):
673
def from_diff_tree(diff_tree):
674
return klass.from_string(command_string, diff_tree.old_tree,
675
diff_tree.new_tree, diff_tree.to_file)
676
return from_diff_tree
678
def _get_command(self, old_path, new_path):
679
my_map = {'old_path': old_path, 'new_path': new_path}
680
return [t % my_map for t in self.command_template]
682
def _execute(self, old_path, new_path):
683
command = self._get_command(old_path, new_path)
685
proc = subprocess.Popen(command, stdout=subprocess.PIPE,
688
if e.errno == errno.ENOENT:
689
raise errors.ExecutableMissing(command[0])
692
self.to_file.write(proc.stdout.read())
695
def _try_symlink_root(self, tree, prefix):
696
if (getattr(tree, 'abspath', None) is None
697
or not osutils.host_os_dereferences_symlinks()):
700
os.symlink(tree.abspath(''), osutils.pathjoin(self._root, prefix))
702
if e.errno != errno.EEXIST:
706
def _write_file(self, file_id, tree, prefix, relpath):
707
full_path = osutils.pathjoin(self._root, prefix, relpath)
708
if self._try_symlink_root(tree, prefix):
710
parent_dir = osutils.dirname(full_path)
712
os.makedirs(parent_dir)
714
if e.errno != errno.EEXIST:
716
source = tree.get_file(file_id, relpath)
718
target = open(full_path, 'wb')
720
osutils.pumpfile(source, target)
725
osutils.make_readonly(full_path)
726
mtime = tree.get_file_mtime(file_id)
727
os.utime(full_path, (mtime, mtime))
730
def _prepare_files(self, file_id, old_path, new_path):
731
old_disk_path = self._write_file(file_id, self.old_tree, 'old',
733
new_disk_path = self._write_file(file_id, self.new_tree, 'new',
735
return old_disk_path, new_disk_path
739
osutils.rmtree(self._root)
741
if e.errno != errno.ENOENT:
742
mutter("The temporary directory \"%s\" was not "
743
"cleanly removed: %s." % (self._root, e))
745
def diff(self, file_id, old_path, new_path, old_kind, new_kind):
746
if (old_kind, new_kind) != ('file', 'file'):
747
return DiffPath.CANNOT_DIFF
748
self._prepare_files(file_id, old_path, new_path)
749
self._execute(osutils.pathjoin('old', old_path),
750
osutils.pathjoin('new', new_path))
753
class DiffTree(object):
754
"""Provides textual representations of the difference between two trees.
756
A DiffTree examines two trees and where a file-id has altered
757
between them, generates a textual representation of the difference.
758
DiffTree uses a sequence of DiffPath objects which are each
759
given the opportunity to handle a given altered fileid. The list
760
of DiffPath objects can be extended globally by appending to
761
DiffTree.diff_factories, or for a specific diff operation by
762
supplying the extra_factories option to the appropriate method.
471
mutter("check paths: %r", paths)
474
s = old_tree.filter_unversioned_files(paths)
475
s = new_tree.filter_unversioned_files(s)
476
s = [path for path in s if not new_tree.has_filename(path)]
478
raise errors.PathsDoNotExist(sorted(s))
481
def get_prop_change(meta_modified):
483
return " (properties changed)"
488
def _maybe_diff_file_or_symlink(old_path, old_tree, file_id,
489
new_path, new_tree, text_modified,
490
kind, to_file, diff_file):
492
new_entry = new_tree.inventory[file_id]
493
old_tree.inventory[file_id].diff(diff_file,
765
# list of factories that can provide instances of DiffPath objects
766
# may be extended by plugins.
767
diff_factories = [DiffSymlink.from_diff_tree,
768
DiffDirectory.from_diff_tree]
770
def __init__(self, old_tree, new_tree, to_file, path_encoding='utf-8',
771
diff_text=None, extra_factories=None):
774
:param old_tree: Tree to show as old in the comparison
775
:param new_tree: Tree to show as new in the comparison
776
:param to_file: File to write comparision to
777
:param path_encoding: Character encoding to write paths in
778
:param diff_text: DiffPath-type object to use as a last resort for
780
:param extra_factories: Factories of DiffPaths to try before any other
782
if diff_text is None:
783
diff_text = DiffText(old_tree, new_tree, to_file, path_encoding,
784
'', '', internal_diff)
785
self.old_tree = old_tree
786
self.new_tree = new_tree
787
self.to_file = to_file
788
self.path_encoding = path_encoding
790
if extra_factories is not None:
791
self.differs.extend(f(self) for f in extra_factories)
792
self.differs.extend(f(self) for f in self.diff_factories)
793
self.differs.extend([diff_text, DiffKindChange.from_diff_tree(self)])
796
def from_trees_options(klass, old_tree, new_tree, to_file,
797
path_encoding, external_diff_options, old_label,
799
"""Factory for producing a DiffTree.
801
Designed to accept options used by show_diff_trees.
802
:param old_tree: The tree to show as old in the comparison
803
:param new_tree: The tree to show as new in the comparison
804
:param to_file: File to write comparisons to
805
:param path_encoding: Character encoding to use for writing paths
806
:param external_diff_options: If supplied, use the installed diff
807
binary to perform file comparison, using supplied options.
808
:param old_label: Prefix to use for old file labels
809
:param new_label: Prefix to use for new file labels
810
:param using: Commandline to use to invoke an external diff tool
812
if using is not None:
813
extra_factories = [DiffFromTool.make_from_diff_tree(using)]
816
if external_diff_options:
817
opts = external_diff_options.split()
818
def diff_file(olab, olines, nlab, nlines, to_file):
819
external_diff(olab, olines, nlab, nlines, to_file, opts)
821
diff_file = internal_diff
822
diff_text = DiffText(old_tree, new_tree, to_file, path_encoding,
823
old_label, new_label, diff_file)
824
return klass(old_tree, new_tree, to_file, path_encoding, diff_text,
827
def show_diff(self, specific_files, extra_trees=None):
828
"""Write tree diff to self.to_file
830
:param sepecific_files: the specific files to compare (recursive)
831
:param extra_trees: extra trees to use for mapping paths to file_ids
834
return self._show_diff(specific_files, extra_trees)
836
for differ in self.differs:
839
def _show_diff(self, specific_files, extra_trees):
840
# TODO: Generation of pseudo-diffs for added/deleted files could
841
# be usefully made into a much faster special case.
842
iterator = self.new_tree.iter_changes(self.old_tree,
843
specific_files=specific_files,
844
extra_trees=extra_trees,
845
require_versioned=True)
847
def changes_key(change):
848
old_path, new_path = change[1]
853
def get_encoded_path(path):
855
return path.encode(self.path_encoding, "replace")
856
for (file_id, paths, changed_content, versioned, parent, name, kind,
857
executable) in sorted(iterator, key=changes_key):
858
# The root does not get diffed, and items with no known kind (that
859
# is, missing) in both trees are skipped as well.
860
if parent == (None, None) or kind == (None, None):
862
oldpath, newpath = paths
863
oldpath_encoded = get_encoded_path(paths[0])
864
newpath_encoded = get_encoded_path(paths[1])
865
old_present = (kind[0] is not None and versioned[0])
866
new_present = (kind[1] is not None and versioned[1])
867
renamed = (parent[0], name[0]) != (parent[1], name[1])
869
properties_changed = []
870
properties_changed.extend(get_executable_change(executable[0], executable[1]))
872
if properties_changed:
873
prop_str = " (properties changed: %s)" % (", ".join(properties_changed),)
877
if (old_present, new_present) == (True, False):
878
self.to_file.write("=== removed %s '%s'\n" %
879
(kind[0], oldpath_encoded))
881
elif (old_present, new_present) == (False, True):
882
self.to_file.write("=== added %s '%s'\n" %
883
(kind[1], newpath_encoded))
886
self.to_file.write("=== renamed %s '%s' => '%s'%s\n" %
887
(kind[0], oldpath_encoded, newpath_encoded, prop_str))
889
# if it was produced by iter_changes, it must be
890
# modified *somehow*, either content or execute bit.
891
self.to_file.write("=== modified %s '%s'%s\n" % (kind[0],
892
newpath_encoded, prop_str))
894
self._diff(file_id, oldpath, newpath, kind[0], kind[1])
900
def diff(self, file_id, old_path, new_path):
901
"""Perform a diff of a single file
903
:param file_id: file-id of the file
904
:param old_path: The path of the file in the old tree
905
:param new_path: The path of the file in the new tree
908
old_kind = self.old_tree.kind(file_id)
909
except (errors.NoSuchId, errors.NoSuchFile):
912
new_kind = self.new_tree.kind(file_id)
913
except (errors.NoSuchId, errors.NoSuchFile):
915
self._diff(file_id, old_path, new_path, old_kind, new_kind)
918
def _diff(self, file_id, old_path, new_path, old_kind, new_kind):
919
result = DiffPath._diff_many(self.differs, file_id, old_path,
920
new_path, old_kind, new_kind)
921
if result is DiffPath.CANNOT_DIFF:
922
error_path = new_path
923
if error_path is None:
924
error_path = old_path
925
raise errors.NoDiffFound(error_path)
added
removed
bzrlib/diff.py
