128
193
diffcmd.extend(diff_opts)
130
rc = os.spawnvp(os.P_WAIT, 'diff', diffcmd)
195
pipe = _spawn_external_diff(diffcmd, capture_errors=True)
196
out,err = pipe.communicate()
132
if rc != 0 and rc != 1:
199
# internal_diff() adds a trailing newline, add one here for consistency
202
# 'diff' gives retcode == 2 for all sorts of errors
203
# one of those is 'Binary files differ'.
204
# Bad options could also be the problem.
205
# 'Binary files' is not a real error, so we suppress that error.
208
# Since we got here, we want to make sure to give an i18n error
209
pipe = _spawn_external_diff(diffcmd, capture_errors=False)
210
out, err = pipe.communicate()
212
# Write out the new i18n diff response
213
to_file.write(out+'\n')
214
if pipe.returncode != 2:
215
raise errors.BzrError(
216
'external diff failed with exit code 2'
217
' when run with LANG=C and LC_ALL=C,'
218
' but not when run natively: %r' % (diffcmd,))
220
first_line = lang_c_out.split('\n', 1)[0]
221
# Starting with diffutils 2.8.4 the word "binary" was dropped.
222
m = re.match('^(binary )?files.*differ$', first_line, re.I)
224
raise errors.BzrError('external diff failed with exit code 2;'
225
' command: %r' % (diffcmd,))
227
# Binary files differ, just return
230
# If we got to here, we haven't written out the output of diff
133
234
# returns 1 if files differ; that's OK
135
236
msg = 'signal %d' % (-rc)
137
238
msg = 'exit code %d' % rc
139
raise BzrError('external diff failed with %s; command: %r' % (rc, diffcmd))
240
raise errors.BzrError('external diff failed with %s; command: %r'
141
245
oldtmpf.close() # and delete
146
def show_diff(b, revision, specific_files, external_diff_options=None):
247
# Clean up. Warn in case the files couldn't be deleted
248
# (in case windows still holds the file open, but not
249
# if the files have already been deleted)
251
os.remove(old_abspath)
253
if e.errno not in (errno.ENOENT,):
254
warning('Failed to delete temporary file: %s %s',
257
os.remove(new_abspath)
259
if e.errno not in (errno.ENOENT,):
260
warning('Failed to delete temporary file: %s %s',
264
@deprecated_function(zero_eight)
265
def show_diff(b, from_spec, specific_files, external_diff_options=None,
266
revision2=None, output=None, b2=None):
147
267
"""Shortcut for showing the diff to the working tree.
269
Please use show_diff_trees instead.
153
None for each, or otherwise the old revision to compare against.
155
The more general form is show_diff_trees(), where the caller
156
supplies any two trees.
161
old_tree = b.basis_tree()
163
old_tree = b.revision_tree(b.lookup_revision(revision))
165
new_tree = b.working_tree()
167
show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
168
external_diff_options)
275
None for 'basis tree', or otherwise the old revision to compare against.
277
The more general form is show_diff_trees(), where the caller
278
supplies any two trees.
283
if from_spec is None:
284
old_tree = b.bzrdir.open_workingtree()
286
old_tree = old_tree = old_tree.basis_tree()
288
old_tree = b.repository.revision_tree(from_spec.in_history(b).rev_id)
290
if revision2 is None:
292
new_tree = b.bzrdir.open_workingtree()
294
new_tree = b2.bzrdir.open_workingtree()
296
new_tree = b.repository.revision_tree(revision2.in_history(b).rev_id)
298
return show_diff_trees(old_tree, new_tree, output, specific_files,
299
external_diff_options)
302
def diff_cmd_helper(tree, specific_files, external_diff_options,
303
old_revision_spec=None, new_revision_spec=None,
305
old_label='a/', new_label='b/'):
306
"""Helper for cmd_diff.
311
:param specific_files:
312
The specific files to compare, or None
314
:param external_diff_options:
315
If non-None, run an external diff, and pass it these options
317
:param old_revision_spec:
318
If None, use basis tree as old revision, otherwise use the tree for
319
the specified revision.
321
:param new_revision_spec:
322
If None, use working tree as new revision, otherwise use the tree for
323
the specified revision.
325
:param revision_specs:
326
Zero, one or two RevisionSpecs from the command line, saying what revisions
327
to compare. This can be passed as an alternative to the old_revision_spec
328
and new_revision_spec parameters.
330
The more general form is show_diff_trees(), where the caller
331
supplies any two trees.
334
# TODO: perhaps remove the old parameters old_revision_spec and
335
# new_revision_spec, since this is only really for use from cmd_diff and
336
# it now always passes through a sequence of revision_specs -- mbp
341
revision = spec.in_store(tree.branch)
343
revision = spec.in_store(None)
344
revision_id = revision.rev_id
345
branch = revision.branch
346
return branch.repository.revision_tree(revision_id)
348
if revision_specs is not None:
349
assert (old_revision_spec is None
350
and new_revision_spec is None)
351
if len(revision_specs) > 0:
352
old_revision_spec = revision_specs[0]
353
if len(revision_specs) > 1:
354
new_revision_spec = revision_specs[1]
356
if old_revision_spec is None:
357
old_tree = tree.basis_tree()
359
old_tree = spec_tree(old_revision_spec)
361
if (new_revision_spec is None
362
or new_revision_spec.spec is None):
365
new_tree = spec_tree(new_revision_spec)
367
if new_tree is not tree:
368
extra_trees = (tree,)
372
return show_diff_trees(old_tree, new_tree, sys.stdout, specific_files,
373
external_diff_options,
374
old_label=old_label, new_label=new_label,
375
extra_trees=extra_trees)
172
378
def show_diff_trees(old_tree, new_tree, to_file, specific_files=None,
173
external_diff_options=None):
379
external_diff_options=None,
380
old_label='a/', new_label='b/',
174
382
"""Show in text form the changes from one tree to another.
201
430
diff_file = internal_diff
204
delta = compare_trees(old_tree, new_tree, want_unchanged=False,
205
specific_files=specific_files)
432
delta = new_tree.changes_from(old_tree,
433
specific_files=specific_files,
434
extra_trees=extra_trees, require_versioned=True)
207
437
for path, file_id, kind in delta.removed:
208
print >>to_file, '*** removed %s %r' % (kind, path)
210
diff_file(old_label + path,
211
old_tree.get_file(file_id).readlines(),
439
print >>to_file, '=== removed %s %r' % (kind, path.encode('utf8'))
440
old_name = '%s%s\t%s' % (old_label, path,
441
_patch_header_date(old_tree, file_id, path))
442
new_name = '%s%s\t%s' % (new_label, path, EPOCH_DATE)
443
old_tree.inventory[file_id].diff(diff_file, old_name, old_tree,
444
new_name, None, None, to_file)
216
445
for path, file_id, kind in delta.added:
217
print >>to_file, '*** added %s %r' % (kind, path)
222
new_tree.get_file(file_id).readlines(),
225
for old_path, new_path, file_id, kind, text_modified in delta.renamed:
226
print >>to_file, '*** renamed %s %r => %r' % (kind, old_path, new_path)
447
print >>to_file, '=== added %s %r' % (kind, path.encode('utf8'))
448
old_name = '%s%s\t%s' % (old_label, path, EPOCH_DATE)
449
new_name = '%s%s\t%s' % (new_label, path,
450
_patch_header_date(new_tree, file_id, path))
451
new_tree.inventory[file_id].diff(diff_file, new_name, new_tree,
452
old_name, None, None, to_file,
454
for (old_path, new_path, file_id, kind,
455
text_modified, meta_modified) in delta.renamed:
457
prop_str = get_prop_change(meta_modified)
458
print >>to_file, '=== renamed %s %r => %r%s' % (
459
kind, old_path.encode('utf8'),
460
new_path.encode('utf8'), prop_str)
461
old_name = '%s%s\t%s' % (old_label, old_path,
462
_patch_header_date(old_tree, file_id,
464
new_name = '%s%s\t%s' % (new_label, new_path,
465
_patch_header_date(new_tree, file_id,
467
_maybe_diff_file_or_symlink(old_name, old_tree, file_id,
469
text_modified, kind, to_file, diff_file)
470
for path, file_id, kind, text_modified, meta_modified in delta.modified:
472
prop_str = get_prop_change(meta_modified)
473
print >>to_file, '=== modified %s %r%s' % (kind, path.encode('utf8'), prop_str)
474
# The file may be in a different location in the old tree (because
475
# the containing dir was renamed, but the file itself was not)
476
old_path = old_tree.id2path(file_id)
477
old_name = '%s%s\t%s' % (old_label, old_path,
478
_patch_header_date(old_tree, file_id, old_path))
479
new_name = '%s%s\t%s' % (new_label, path,
480
_patch_header_date(new_tree, file_id, path))
227
481
if text_modified:
228
diff_file(old_label + old_path,
229
old_tree.get_file(file_id).readlines(),
230
new_label + new_path,
231
new_tree.get_file(file_id).readlines(),
234
for path, file_id, kind in delta.modified:
235
print >>to_file, '*** modified %s %r' % (kind, path)
237
diff_file(old_label + path,
238
old_tree.get_file(file_id).readlines(),
240
new_tree.get_file(file_id).readlines(),
245
class TreeDelta(object):
246
"""Describes changes from one tree to another.
255
(oldpath, newpath, id, kind, text_modified)
261
Each id is listed only once.
263
Files that are both modified and renamed are listed only in
264
renamed, with the text_modified flag true.
266
Files are only considered renamed if their name has changed or
267
their parent directory has changed. Renaming a directory
268
does not count as renaming all its contents.
270
The lists are normally sorted when the delta is created.
279
def __eq__(self, other):
280
if not isinstance(other, TreeDelta):
282
return self.added == other.added \
283
and self.removed == other.removed \
284
and self.renamed == other.renamed \
285
and self.modified == other.modified \
286
and self.unchanged == other.unchanged
288
def __ne__(self, other):
289
return not (self == other)
292
return "TreeDelta(added=%r, removed=%r, renamed=%r, modified=%r," \
293
" unchanged=%r)" % (self.added, self.removed, self.renamed,
294
self.modified, self.unchanged)
296
def has_changed(self):
297
changes = len(self.added) + len(self.removed) + len(self.renamed)
298
changes += len(self.modified)
299
return (changes != 0)
301
def touches_file_id(self, file_id):
302
"""Return True if file_id is modified by this delta."""
303
for l in self.added, self.removed, self.modified:
307
for v in self.renamed:
313
def show(self, to_file, show_ids=False, show_unchanged=False):
314
def show_list(files):
315
for path, fid, kind in files:
316
if kind == 'directory':
318
elif kind == 'symlink':
322
print >>to_file, ' %-30s %s' % (path, fid)
324
print >>to_file, ' ', path
327
print >>to_file, 'removed:'
328
show_list(self.removed)
331
print >>to_file, 'added:'
332
show_list(self.added)
335
print >>to_file, 'renamed:'
336
for oldpath, newpath, fid, kind, text_modified in self.renamed:
338
print >>to_file, ' %s => %s %s' % (oldpath, newpath, fid)
340
print >>to_file, ' %s => %s' % (oldpath, newpath)
343
print >>to_file, 'modified:'
344
show_list(self.modified)
346
if show_unchanged and self.unchanged:
347
print >>to_file, 'unchanged:'
348
show_list(self.unchanged)
352
def compare_trees(old_tree, new_tree, want_unchanged=False, specific_files=None):
353
"""Describe changes from one tree to another.
355
Returns a TreeDelta with details of added, modified, renamed, and
358
The root entry is specifically exempt.
360
This only considers versioned files.
363
If true, also list files unchanged from one version to
367
If true, only check for changes to specified names or
371
from osutils import is_inside_any
482
_maybe_diff_file_or_symlink(old_name, old_tree, file_id,
484
True, kind, to_file, diff_file)
489
def _patch_header_date(tree, file_id, path):
490
"""Returns a timestamp suitable for use in a patch header."""
491
mtime = tree.get_file_mtime(file_id, path)
492
assert mtime is not None, \
493
"got an mtime of None for file-id %s, path %s in tree %s" % (
495
return timestamp.format_patch_date(mtime)
498
def _raise_if_nonexistent(paths, old_tree, new_tree):
499
"""Complain if paths are not in either inventory or tree.
501
It's OK with the files exist in either tree's inventory, or
502
if they exist in the tree but are not versioned.
373
old_inv = old_tree.inventory
374
new_inv = new_tree.inventory
376
mutter('start compare_trees')
378
# TODO: match for specific files can be rather smarter by finding
379
# the IDs of those files up front and then considering only that.
381
for file_id in old_tree:
382
if file_id in new_tree:
383
old_ie = old_inv[file_id]
384
new_ie = new_inv[file_id]
387
assert kind == new_ie.kind
389
assert kind in ('file', 'directory', 'symlink', 'root_directory'), \
390
'invalid file kind %r' % kind
392
if kind == 'root_directory':
396
if (not is_inside_any(specific_files, old_inv.id2path(file_id))
397
and not is_inside_any(specific_files, new_inv.id2path(file_id))):
401
old_sha1 = old_tree.get_file_sha1(file_id)
402
new_sha1 = new_tree.get_file_sha1(file_id)
403
text_modified = (old_sha1 != new_sha1)
405
## mutter("no text to check for %r %r" % (file_id, kind))
406
text_modified = False
408
# TODO: Can possibly avoid calculating path strings if the
409
# two files are unchanged and their names and parents are
410
# the same and the parents are unchanged all the way up.
411
# May not be worthwhile.
413
if (old_ie.name != new_ie.name
414
or old_ie.parent_id != new_ie.parent_id):
415
delta.renamed.append((old_inv.id2path(file_id),
416
new_inv.id2path(file_id),
420
delta.modified.append((new_inv.id2path(file_id), file_id, kind))
422
delta.unchanged.append((new_inv.id2path(file_id), file_id, kind))
424
kind = old_inv.get_file_kind(file_id)
425
old_path = old_inv.id2path(file_id)
427
if not is_inside_any(specific_files, old_path):
429
delta.removed.append((old_path, file_id, kind))
431
mutter('start looking for new files')
432
for file_id in new_inv:
433
if file_id in old_inv:
435
new_path = new_inv.id2path(file_id)
437
if not is_inside_any(specific_files, new_path):
439
kind = new_inv.get_file_kind(file_id)
440
delta.added.append((new_path, file_id, kind))
445
delta.modified.sort()
446
delta.unchanged.sort()
504
This can be used by operations such as bzr status that can accept
505
unknown or ignored files.
507
mutter("check paths: %r", paths)
510
s = old_tree.filter_unversioned_files(paths)
511
s = new_tree.filter_unversioned_files(s)
512
s = [path for path in s if not new_tree.has_filename(path)]
514
raise errors.PathsDoNotExist(sorted(s))
517
def get_prop_change(meta_modified):
519
return " (properties changed)"
524
def _maybe_diff_file_or_symlink(old_path, old_tree, file_id,
525
new_path, new_tree, text_modified,
526
kind, to_file, diff_file):
528
new_entry = new_tree.inventory[file_id]
529
old_tree.inventory[file_id].diff(diff_file,