99
86
for v in self.renamed:
100
87
if v[2] == file_id:
102
for v in self.kind_changed:
107
def get_changes_as_text(self, show_ids=False, show_unchanged=False,
110
output = StringIO.StringIO()
111
report_delta(output, self, short_status, show_ids, show_unchanged)
112
return output.getvalue()
115
def _compare_trees(old_tree, new_tree, want_unchanged, specific_files,
116
include_root, extra_trees=None,
117
require_versioned=False, want_unversioned=False):
118
"""Worker function that implements Tree.changes_from."""
92
def show(self, to_file, show_ids=False, show_unchanged=False):
95
path, fid, kind = item[:3]
97
if kind == 'directory':
99
elif kind == 'symlink':
102
if len(item) == 5 and item[4]:
106
print >>to_file, ' %-30s %s' % (path, fid)
108
print >>to_file, ' ', path
111
print >>to_file, 'removed:'
112
show_list(self.removed)
115
print >>to_file, 'added:'
116
show_list(self.added)
121
print >>to_file, 'renamed:'
122
for (oldpath, newpath, fid, kind,
123
text_modified, meta_modified) in self.renamed:
124
if text_modified or meta_modified:
125
extra_modified.append((newpath, fid, kind,
126
text_modified, meta_modified))
130
print >>to_file, ' %s => %s %s' % (oldpath, newpath, fid)
132
print >>to_file, ' %s => %s' % (oldpath, newpath)
134
if self.modified or extra_modified:
135
print >>to_file, 'modified:'
136
show_list(self.modified)
137
show_list(extra_modified)
139
if show_unchanged and self.unchanged:
140
print >>to_file, 'unchanged:'
141
show_list(self.unchanged)
145
def compare_trees(old_tree, new_tree, want_unchanged=False, specific_files=None):
146
"""Describe changes from one tree to another.
148
Returns a TreeDelta with details of added, modified, renamed, and
151
The root entry is specifically exempt.
153
This only considers versioned files.
156
If true, also list files unchanged from one version to
160
If true, only check for changes to specified names or
161
files within them. Any unversioned files given have no effect
162
(but this might change in the future).
164
# NB: show_status depends on being able to pass in non-versioned files and
165
# report them as unknown
170
return _compare_trees(old_tree, new_tree, want_unchanged,
178
def _compare_trees(old_tree, new_tree, want_unchanged, specific_files):
180
from osutils import is_inside_any
182
old_inv = old_tree.inventory
183
new_inv = new_tree.inventory
119
184
delta = TreeDelta()
120
# mutter('start compare_trees')
122
for (file_id, path, content_change, versioned, parent_id, name, kind,
123
executable) in new_tree.iter_changes(old_tree, want_unchanged,
124
specific_files, extra_trees=extra_trees,
125
require_versioned=require_versioned,
126
want_unversioned=want_unversioned):
127
if versioned == (False, False):
128
delta.unversioned.append((path[1], None, kind[1]))
130
if not include_root and (None, None) == parent_id:
132
fully_present = tuple((versioned[x] and kind[x] is not None) for
134
if fully_present[0] != fully_present[1]:
135
if fully_present[1] is True:
136
delta.added.append((path[1], file_id, kind[1]))
185
mutter('start compare_trees')
187
# TODO: Rather than iterating over the whole tree and then filtering, we
188
# could diff just the specified files (if any) and their subtrees.
189
# Perhaps should take a list of file-ids instead? Need to indicate any
190
# ids or names which were not found in the trees.
192
old_files = old_tree.list_files()
193
new_files = new_tree.list_files()
204
except StopIteration:
205
return None, None, None, None, None
206
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
207
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
210
def check_matching(old_path, old_entry, new_path, new_entry):
211
"""We have matched up 2 file_ids, check for changes."""
212
assert old_entry.kind == new_entry.kind
214
if old_entry.kind == 'root_directory':
218
if (not is_inside_any(specific_files, old_path)
219
and not is_inside_any(specific_files, new_path)):
222
# temporary hack until all entries are populated before clients
224
old_entry._read_tree_state(old_path, old_tree)
225
new_entry._read_tree_state(new_path, new_tree)
226
text_modified, meta_modified = new_entry.detect_changes(old_entry)
228
# If the name changes, or the parent_id changes, we have a rename
229
# (if we move a parent, that doesn't count as a rename for the file)
230
if (old_entry.name != new_entry.name
231
or old_entry.parent_id != new_entry.parent_id):
232
delta.renamed.append((old_path,
234
old_entry.file_id, old_entry.kind,
235
text_modified, meta_modified))
236
elif text_modified or meta_modified:
237
delta.modified.append((new_path, new_entry.file_id, new_entry.kind,
238
text_modified, meta_modified))
240
delta.unchanged.append((new_path, new_entry.file_id, new_entry.kind))
243
def handle_old(path, entry):
244
"""old entry without a new entry match
246
Check to see if a matching new entry was already seen as an
247
added file, and switch the pair into being a rename.
248
Otherwise just mark the old entry being removed.
250
if entry.file_id in added:
251
# Actually this is a rename, we found a new file_id earlier
252
# at a different location, so it is no-longer added
253
x_new_path, x_new_entry = added.pop(entry.file_id)
254
check_matching(path, entry, x_new_path, x_new_entry)
256
# We have an old_file_id which doesn't line up with a new_file_id
257
# So this file looks to be removed
258
assert entry.file_id not in removed
259
removed[entry.file_id] = path, entry
261
def handle_new(path, entry):
262
"""new entry without an old entry match
264
Check to see if a matching old entry was already seen as a
265
removal, and change the pair into a rename.
266
Otherwise just mark the new entry as an added file.
268
if entry.file_id in removed:
269
# We saw this file_id earlier at an old different location
270
# it is no longer removed, just renamed
271
x_old_path, x_old_entry = removed.pop(entry.file_id)
272
check_matching(x_old_path, x_old_entry, path, entry)
274
# We have a new file which does not match an old file
276
assert entry.file_id not in added
277
added[entry.file_id] = path, entry
279
while old_path or new_path:
280
# list_files() returns files in alphabetical path sorted order
281
if old_path == new_path:
282
if old_file_id == new_file_id:
283
# This is the common case, the files are in the same place
284
# check if there were any content changes
286
if old_file_id is None:
287
# We have 2 unversioned files, no deltas possible???
290
check_matching(old_path, old_entry, new_path, new_entry)
138
delta.removed.append((path[0], file_id, kind[0]))
139
elif fully_present[0] is False:
141
elif name[0] != name[1] or parent_id[0] != parent_id[1]:
142
# If the name changes, or the parent_id changes, we have a rename
143
# (if we move a parent, that doesn't count as a rename for the
145
delta.renamed.append((path[0],
150
(executable[0] != executable[1])))
151
elif kind[0] != kind[1]:
152
delta.kind_changed.append((path[1], file_id, kind[0], kind[1]))
153
elif content_change or executable[0] != executable[1]:
154
delta.modified.append((path[1], file_id, kind[1],
156
(executable[0] != executable[1])))
158
delta.unchanged.append((path[1], file_id, kind[1]))
292
# The ids don't match, so we have to handle them both
294
if old_file_id is not None:
295
handle_old(old_path, old_entry)
297
if new_file_id is not None:
298
handle_new(new_path, new_entry)
300
# The two entries were at the same path, so increment both sides
301
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
302
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
303
elif new_path is None or (old_path is not None and old_path < new_path):
304
# Assume we don't match, only process old_path
305
if old_file_id is not None:
306
handle_old(old_path, old_entry)
307
# old_path came first, so increment it, trying to match up
308
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
309
elif new_path is not None:
310
# new_path came first, so increment it, trying to match up
311
if new_file_id is not None:
312
handle_new(new_path, new_entry)
313
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
315
# Now we have a set of added and removed files, mark them all
316
for old_path, old_entry in removed.itervalues():
318
if not is_inside_any(specific_files, old_path):
320
delta.removed.append((old_path, old_entry.file_id, old_entry.kind))
321
for new_path, new_entry in added.itervalues():
323
if not is_inside_any(specific_files, new_path):
325
delta.added.append((new_path, new_entry.file_id, new_entry.kind))
160
327
delta.removed.sort()
161
328
delta.added.sort()
166
333
delta.unchanged.sort()
171
class _ChangeReporter(object):
172
"""Report changes between two trees"""
174
def __init__(self, output=None, suppress_root_add=True,
175
output_file=None, unversioned_filter=None, view_info=None):
178
:param output: a function with the signature of trace.note, i.e.
179
accepts a format and parameters.
180
:param supress_root_add: If true, adding the root will be ignored
181
(i.e. when a tree has just been initted)
182
:param output_file: If supplied, a file-like object to write to.
183
Only one of output and output_file may be supplied.
184
:param unversioned_filter: A filter function to be called on
185
unversioned files. This should return True to ignore a path.
186
By default, no filtering takes place.
187
:param view_info: A tuple of view_name,view_files if only
188
items inside a view are to be reported on, or None for
191
if output_file is not None:
192
if output is not None:
193
raise BzrError('Cannot specify both output and output_file')
194
def output(fmt, *args):
195
output_file.write((fmt % args) + '\n')
197
if self.output is None:
198
from bzrlib import trace
199
self.output = trace.note
200
self.suppress_root_add = suppress_root_add
201
self.modified_map = {'kind changed': 'K',
206
self.versioned_map = {'added': '+', # versioned target
207
'unchanged': ' ', # versioned in both
208
'removed': '-', # versioned in source
209
'unversioned': '?', # versioned in neither
211
self.unversioned_filter = unversioned_filter
212
if view_info is None:
213
self.view_name = None
216
self.view_name = view_info[0]
217
self.view_files = view_info[1]
218
self.output("Operating on whole tree but only reporting on "
219
"'%s' view." % (self.view_name,))
221
def report(self, file_id, paths, versioned, renamed, modified, exe_change,
223
"""Report one change to a file
225
:param file_id: The file_id of the file
226
:param path: The old and new paths as generated by Tree.iter_changes.
227
:param versioned: may be 'added', 'removed', 'unchanged', or
229
:param renamed: may be True or False
230
:param modified: may be 'created', 'deleted', 'kind changed',
231
'modified' or 'unchanged'.
232
:param exe_change: True if the execute bit has changed
233
:param kind: A pair of file kinds, as generated by Tree.iter_changes.
234
None indicates no file present.
238
if paths[1] == '' and versioned == 'added' and self.suppress_root_add:
240
if self.view_files and not osutils.is_inside_any(self.view_files,
243
if versioned == 'unversioned':
244
# skip ignored unversioned files if needed.
245
if self.unversioned_filter is not None:
246
if self.unversioned_filter(paths[1]):
248
# dont show a content change in the output.
249
modified = 'unchanged'
250
# we show both paths in the following situations:
251
# the file versioning is unchanged AND
252
# ( the path is different OR
253
# the kind is different)
254
if (versioned == 'unchanged' and
255
(renamed or modified == 'kind changed')):
257
# on a rename, we show old and new
258
old_path, path = paths
260
# if it's not renamed, we're showing both for kind changes
261
# so only show the new path
262
old_path, path = paths[1], paths[1]
263
# if the file is not missing in the source, we show its kind
264
# when we show two paths.
265
if kind[0] is not None:
266
old_path += osutils.kind_marker(kind[0])
268
elif versioned == 'removed':
269
# not present in target
278
rename = self.versioned_map[versioned]
279
# we show the old kind on the new path when the content is deleted.
280
if modified == 'deleted':
281
path += osutils.kind_marker(kind[0])
282
# otherwise we always show the current kind when there is one
283
elif kind[1] is not None:
284
path += osutils.kind_marker(kind[1])
289
self.output("%s%s%s %s%s", rename, self.modified_map[modified], exe,
292
def report_changes(change_iterator, reporter):
293
"""Report the changes from a change iterator.
295
This is essentially a translation from low-level to medium-level changes.
296
Further processing may be required to produce a human-readable output.
297
Unfortunately, some tree-changing operations are very complex
298
:change_iterator: an iterator or sequence of changes in the format
299
generated by Tree.iter_changes
300
:param reporter: The _ChangeReporter that will report the changes.
302
versioned_change_map = {
303
(True, True) : 'unchanged',
304
(True, False) : 'removed',
305
(False, True) : 'added',
306
(False, False): 'unversioned',
308
for (file_id, path, content_change, versioned, parent_id, name, kind,
309
executable) in change_iterator:
311
# files are "renamed" if they are moved or if name changes, as long
313
if None not in name and None not in parent_id and\
314
(name[0] != name[1] or parent_id[0] != parent_id[1]):
318
if kind[0] != kind[1]:
321
elif kind[1] is None:
324
modified = "kind changed"
327
modified = "modified"
329
modified = "unchanged"
330
if kind[1] == "file":
331
exe_change = (executable[0] != executable[1])
332
versioned_change = versioned_change_map[versioned]
333
reporter.report(file_id, path, versioned_change, renamed, modified,
336
def report_delta(to_file, delta, short_status=False, show_ids=False,
337
show_unchanged=False, indent='', filter=None):
338
"""Output this delta in status-like form to to_file.
340
:param to_file: A file-like object where the output is displayed.
342
:param delta: A TreeDelta containing the changes to be displayed
344
:param short_status: Single-line status if True.
346
:param show_ids: Output the file ids if True.
348
:param show_unchanged: Output the unchanged files if True.
350
:param indent: Added at the beginning of all output lines (for merged
353
:param filter: A callable receiving a path and a file id and
354
returning True if the path should be displayed.
357
def decorate_path(path, kind, meta_modified=None):
358
if kind == 'directory':
360
elif kind == 'symlink':
366
def show_more_renamed(item):
367
(oldpath, file_id, kind,
368
text_modified, meta_modified, newpath) = item
369
dec_new_path = decorate_path(newpath, kind, meta_modified)
370
to_file.write(' => %s' % dec_new_path)
371
if text_modified or meta_modified:
372
extra_modified.append((newpath, file_id, kind,
373
text_modified, meta_modified))
375
def show_more_kind_changed(item):
376
(path, file_id, old_kind, new_kind) = item
377
to_file.write(' (%s => %s)' % (old_kind, new_kind))
379
def show_path(path, file_id, kind, meta_modified,
380
default_format, with_file_id_format):
381
dec_path = decorate_path(path, kind, meta_modified)
383
to_file.write(with_file_id_format % dec_path)
385
to_file.write(default_format % dec_path)
387
def show_list(files, long_status_name, short_status_letter,
388
default_format='%s', with_file_id_format='%-30s',
393
prefix = short_status_letter
396
prefix = indent + prefix + ' '
399
path, file_id, kind = item[:3]
400
if (filter is not None and not filter(path, file_id)):
402
if not header_shown and not short_status:
403
to_file.write(indent + long_status_name + ':\n')
407
meta_modified = item[4]
409
to_file.write(prefix)
410
show_path(path, file_id, kind, meta_modified,
411
default_format, with_file_id_format)
412
if show_more is not None:
415
to_file.write(' %s' % file_id)
418
show_list(delta.removed, 'removed', 'D')
419
show_list(delta.added, 'added', 'A')
421
# Reorder delta.renamed tuples so that all lists share the same
422
# order for their 3 first fields and that they also begin like
423
# the delta.modified tuples
424
renamed = [(p, i, k, tm, mm, np)
425
for p, np, i, k, tm, mm in delta.renamed]
426
show_list(renamed, 'renamed', 'R', with_file_id_format='%s',
427
show_more=show_more_renamed)
428
show_list(delta.kind_changed, 'kind changed', 'K',
429
with_file_id_format='%s',
430
show_more=show_more_kind_changed)
431
show_list(delta.modified + extra_modified, 'modified', 'M')
433
show_list(delta.unchanged, 'unchanged', 'S')
435
show_list(delta.unversioned, 'unknown', ' ')
added
removed
bzrlib/delta.py
