207
208
delta = compare_trees(old_tree, new_tree, want_unchanged=False,
208
209
specific_files=specific_files)
211
211
for path, file_id, kind in delta.removed:
213
print >>to_file, '=== removed %s %r' % (kind, path)
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old_tree.inventory[file_id].diff(diff_file, old_label + path, old_tree,
215
DEVNULL, None, None, to_file)
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print >>to_file, '*** removed %s %r' % (kind, path)
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diff_file(old_label + path,
215
old_tree.get_file(file_id).readlines(),
216
220
for path, file_id, kind in delta.added:
218
print >>to_file, '=== added %s %r' % (kind, path)
219
new_tree.inventory[file_id].diff(diff_file, new_label + path, new_tree,
220
DEVNULL, None, None, to_file,
222
for (old_path, new_path, file_id, kind,
223
text_modified, meta_modified) in delta.renamed:
225
prop_str = get_prop_change(meta_modified)
226
print >>to_file, '=== renamed %s %r => %r%s' % (
227
kind, old_path, new_path, prop_str)
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_maybe_diff_file_or_symlink(old_label, old_path, old_tree, file_id,
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new_label, new_path, new_tree,
230
text_modified, kind, to_file, diff_file)
231
for path, file_id, kind, text_modified, meta_modified in delta.modified:
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prop_str = get_prop_change(meta_modified)
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print >>to_file, '=== modified %s %r%s' % (kind, path, prop_str)
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print >>to_file, '*** added %s %r' % (kind, path)
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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)
235
231
if text_modified:
236
_maybe_diff_file_or_symlink(old_label, path, old_tree, file_id,
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new_label, path, new_tree,
238
True, kind, to_file, diff_file)
232
diff_file(old_label + old_path,
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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
242
def get_prop_change(meta_modified):
244
return " (properties changed)"
249
def _maybe_diff_file_or_symlink(old_label, old_path, old_tree, file_id,
250
new_label, new_path, new_tree, text_modified,
251
kind, to_file, diff_file):
253
new_entry = new_tree.inventory[file_id]
254
old_tree.inventory[file_id].diff(diff_file,
255
old_label + old_path, old_tree,
256
new_label + new_path, new_entry,
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()