43
37
# both sequences are empty.
44
38
if not oldlines and not newlines:
47
if allow_binary is False:
48
check_text_lines(oldlines)
49
check_text_lines(newlines)
51
if sequence_matcher is None:
52
sequence_matcher = SequenceMatcher
53
ud = unified_diff(oldlines, newlines,
54
fromfile=old_filename+'\t',
55
tofile=new_filename+'\t',
56
sequencematcher=sequence_matcher)
43
if oldlines and (oldlines[-1][-1] != '\n'):
46
if newlines and (newlines[-1][-1] != '\n'):
50
ud = difflib.unified_diff(oldlines, newlines,
51
fromfile=old_label, tofile=new_label)
59
53
# work-around for difflib being too smart for its own good
60
54
# if /dev/null is "1,0", patch won't recognize it as /dev/null
62
57
ud[2] = ud[2].replace('-1,0', '-0,0')
64
60
ud[2] = ud[2].replace('+1,0', '+0,0')
65
# work around for difflib emitting random spaces after the label
66
ud[0] = ud[0][:-2] + '\n'
67
ud[1] = ud[1][:-2] + '\n'
71
if not line.endswith('\n'):
72
to_file.write("\n\\ No newline at end of file\n")
62
to_file.writelines(ud)
64
print >>to_file, "\\ No newline at end of file"
76
def external_diff(old_filename, oldlines, new_filename, newlines, to_file,
70
def external_diff(old_label, oldlines, new_label, newlines, to_file,
78
72
"""Display a diff by calling out to the external diff program."""
151
145
oldtmpf.close() # and delete
155
@deprecated_function(zero_eight)
156
def show_diff(b, from_spec, specific_files, external_diff_options=None,
157
revision2=None, output=None, b2=None):
150
def show_diff(b, revision, specific_files, external_diff_options=None):
158
151
"""Shortcut for showing the diff to the working tree.
160
Please use show_diff_trees instead.
166
None for 'basis tree', or otherwise the old revision to compare against.
168
The more general form is show_diff_trees(), where the caller
169
supplies any two trees.
175
if from_spec is None:
176
old_tree = b.bzrdir.open_workingtree()
178
old_tree = old_tree = old_tree.basis_tree()
180
old_tree = b.repository.revision_tree(from_spec.in_history(b).rev_id)
182
if revision2 is None:
184
new_tree = b.bzrdir.open_workingtree()
186
new_tree = b2.bzrdir.open_workingtree()
188
new_tree = b.repository.revision_tree(revision2.in_history(b).rev_id)
190
return show_diff_trees(old_tree, new_tree, output, specific_files,
191
external_diff_options)
194
def diff_cmd_helper(tree, specific_files, external_diff_options,
195
old_revision_spec=None, new_revision_spec=None,
196
old_label='a/', new_label='b/'):
197
"""Helper for cmd_diff.
203
The specific files to compare, or None
205
external_diff_options
206
If non-None, run an external diff, and pass it these options
209
If None, use basis tree as old revision, otherwise use the tree for
210
the specified revision.
213
If None, use working tree as new revision, otherwise use the tree for
214
the specified revision.
157
None for each, or otherwise the old revision to compare against.
216
159
The more general form is show_diff_trees(), where the caller
217
160
supplies any two trees.
222
revision_id = spec.in_store(tree.branch).rev_id
223
return tree.branch.repository.revision_tree(revision_id)
224
if old_revision_spec is None:
225
old_tree = tree.basis_tree()
227
old_tree = spec_tree(old_revision_spec)
229
if new_revision_spec is None:
232
new_tree = spec_tree(new_revision_spec)
234
return show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
235
external_diff_options,
236
old_label=old_label, new_label=new_label)
165
old_tree = b.basis_tree()
167
old_tree = b.revision_tree(b.lookup_revision(revision))
169
new_tree = b.working_tree()
171
show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
172
external_diff_options)
239
176
def show_diff_trees(old_tree, new_tree, to_file, specific_files=None,
240
external_diff_options=None,
241
old_label='a/', new_label='b/'):
177
external_diff_options=None):
242
178
"""Show in text form the changes from one tree to another.
283
205
diff_file = internal_diff
285
208
delta = compare_trees(old_tree, new_tree, want_unchanged=False,
286
209
specific_files=specific_files)
289
211
for path, file_id, kind in delta.removed:
291
print >>to_file, '=== removed %s %r' % (kind, path)
292
old_tree.inventory[file_id].diff(diff_file, old_label + path, old_tree,
293
DEVNULL, None, None, to_file)
212
print >>to_file, '*** removed %s %r' % (kind, path)
214
diff_file(old_label + path,
215
old_tree.get_file(file_id).readlines(),
294
220
for path, file_id, kind in delta.added:
296
print >>to_file, '=== added %s %r' % (kind, path)
297
new_tree.inventory[file_id].diff(diff_file, new_label + path, new_tree,
298
DEVNULL, None, None, to_file,
300
for (old_path, new_path, file_id, kind,
301
text_modified, meta_modified) in delta.renamed:
303
prop_str = get_prop_change(meta_modified)
304
print >>to_file, '=== renamed %s %r => %r%s' % (
305
kind, old_path, new_path, prop_str)
306
_maybe_diff_file_or_symlink(old_label, old_path, old_tree, file_id,
307
new_label, new_path, new_tree,
308
text_modified, kind, to_file, diff_file)
309
for path, file_id, kind, text_modified, meta_modified in delta.modified:
311
prop_str = get_prop_change(meta_modified)
312
print >>to_file, '=== modified %s %r%s' % (kind, path, prop_str)
221
print >>to_file, '*** added %s %r' % (kind, path)
226
new_tree.get_file(file_id).readlines(),
229
for old_path, new_path, file_id, kind, text_modified in delta.renamed:
230
print >>to_file, '*** renamed %s %r => %r' % (kind, old_path, new_path)
313
231
if text_modified:
314
_maybe_diff_file_or_symlink(old_label, path, old_tree, file_id,
315
new_label, path, new_tree,
316
True, kind, to_file, diff_file)
321
def _raise_if_doubly_unversioned(specific_files, old_tree, new_tree):
322
"""Complain if paths are not versioned in either tree."""
323
if not specific_files:
325
old_unversioned = old_tree.filter_unversioned_files(specific_files)
326
new_unversioned = new_tree.filter_unversioned_files(specific_files)
327
unversioned = old_unversioned.intersection(new_unversioned)
329
raise errors.PathsNotVersionedError(sorted(unversioned))
332
def _raise_if_nonexistent(paths, old_tree, new_tree):
333
"""Complain if paths are not in either inventory or tree.
335
It's OK with the files exist in either tree's inventory, or
336
if they exist in the tree but are not versioned.
338
This can be used by operations such as bzr status that can accept
339
unknown or ignored files.
341
mutter("check paths: %r", paths)
344
s = old_tree.filter_unversioned_files(paths)
345
s = new_tree.filter_unversioned_files(s)
346
s = [path for path in s if not new_tree.has_filename(path)]
348
raise errors.PathsDoNotExist(sorted(s))
351
def get_prop_change(meta_modified):
353
return " (properties changed)"
358
def _maybe_diff_file_or_symlink(old_label, old_path, old_tree, file_id,
359
new_label, new_path, new_tree, text_modified,
360
kind, to_file, diff_file):
362
new_entry = new_tree.inventory[file_id]
363
old_tree.inventory[file_id].diff(diff_file,
364
old_label + old_path, old_tree,
365
new_label + new_path, new_entry,
232
diff_file(old_label + old_path,
233
old_tree.get_file(file_id).readlines(),
234
new_label + new_path,
235
new_tree.get_file(file_id).readlines(),
238
for path, file_id, kind in delta.modified:
239
print >>to_file, '*** modified %s %r' % (kind, path)
241
diff_file(old_label + path,
242
old_tree.get_file(file_id).readlines(),
244
new_tree.get_file(file_id).readlines(),
249
class TreeDelta(object):
250
"""Describes changes from one tree to another.
259
(oldpath, newpath, id, kind, text_modified)
265
Each id is listed only once.
267
Files that are both modified and renamed are listed only in
268
renamed, with the text_modified flag true.
270
The lists are normally sorted when the delta is created.
280
return "TreeDelta(added=%r, removed=%r, renamed=%r, modified=%r," \
281
" unchanged=%r)" % (self.added, self.removed, self.renamed,
282
self.modified, self.unchanged)
284
def has_changed(self):
285
changes = len(self.added) + len(self.removed) + len(self.renamed)
286
changes += len(self.modified)
287
return (changes != 0)
289
def touches_file_id(self, file_id):
290
"""Return True if file_id is modified by this delta."""
291
for l in self.added, self.removed, self.modified:
295
for v in self.renamed:
301
def show(self, to_file, show_ids=False, show_unchanged=False):
302
def show_list(files):
303
for path, fid, kind in files:
304
if kind == 'directory':
306
elif kind == 'symlink':
310
print >>to_file, ' %-30s %s' % (path, fid)
312
print >>to_file, ' ', path
315
print >>to_file, 'removed:'
316
show_list(self.removed)
319
print >>to_file, 'added:'
320
show_list(self.added)
323
print >>to_file, 'renamed:'
324
for oldpath, newpath, fid, kind, text_modified in self.renamed:
326
print >>to_file, ' %s => %s %s' % (oldpath, newpath, fid)
328
print >>to_file, ' %s => %s' % (oldpath, newpath)
331
print >>to_file, 'modified:'
332
show_list(self.modified)
334
if show_unchanged and self.unchanged:
335
print >>to_file, 'unchanged:'
336
show_list(self.unchanged)
340
def compare_trees(old_tree, new_tree, want_unchanged, specific_files=None):
341
"""Describe changes from one tree to another.
343
Returns a TreeDelta with details of added, modified, renamed, and
346
The root entry is specifically exempt.
348
This only considers versioned files.
351
If true, also list files unchanged from one version to
355
If true, only check for changes to specified names or
359
from osutils import is_inside_any
361
old_inv = old_tree.inventory
362
new_inv = new_tree.inventory
364
mutter('start compare_trees')
366
# TODO: match for specific files can be rather smarter by finding
367
# the IDs of those files up front and then considering only that.
369
for file_id in old_tree:
370
if file_id in new_tree:
371
kind = old_inv.get_file_kind(file_id)
372
assert kind == new_inv.get_file_kind(file_id)
374
assert kind in ('file', 'directory', 'symlink', 'root_directory'), \
375
'invalid file kind %r' % kind
377
if kind == 'root_directory':
380
old_path = old_inv.id2path(file_id)
381
new_path = new_inv.id2path(file_id)
384
if (not is_inside_any(specific_files, old_path)
385
and not is_inside_any(specific_files, new_path)):
389
old_sha1 = old_tree.get_file_sha1(file_id)
390
new_sha1 = new_tree.get_file_sha1(file_id)
391
text_modified = (old_sha1 != new_sha1)
393
## mutter("no text to check for %r %r" % (file_id, kind))
394
text_modified = False
396
# TODO: Can possibly avoid calculating path strings if the
397
# two files are unchanged and their names and parents are
398
# the same and the parents are unchanged all the way up.
399
# May not be worthwhile.
401
if old_path != new_path:
402
delta.renamed.append((old_path, new_path, file_id, kind,
405
delta.modified.append((new_path, file_id, kind))
407
delta.unchanged.append((new_path, file_id, kind))
409
kind = old_inv.get_file_kind(file_id)
410
old_path = old_inv.id2path(file_id)
412
if not is_inside_any(specific_files, old_path):
414
delta.removed.append((old_path, file_id, kind))
416
mutter('start looking for new files')
417
for file_id in new_inv:
418
if file_id in old_inv:
420
new_path = new_inv.id2path(file_id)
422
if not is_inside_any(specific_files, new_path):
424
kind = new_inv.get_file_kind(file_id)
425
delta.added.append((new_path, file_id, kind))
430
delta.modified.sort()
431
delta.unchanged.sort()