106
117
print >>to_file, 'added:'
107
118
show_list(self.added)
110
123
print >>to_file, 'renamed:'
111
for oldpath, newpath, fid, kind, text_modified in self.renamed:
124
for (oldpath, newpath, fid, kind,
125
text_modified, meta_modified) in self.renamed:
126
if text_modified or meta_modified:
127
extra_modified.append((newpath, fid, kind,
128
text_modified, meta_modified))
113
132
print >>to_file, ' %s => %s %s' % (oldpath, newpath, fid)
115
134
print >>to_file, ' %s => %s' % (oldpath, newpath)
136
if self.modified or extra_modified:
118
137
print >>to_file, 'modified:'
119
138
show_list(self.modified)
139
show_list(extra_modified)
121
141
if show_unchanged and self.unchanged:
122
142
print >>to_file, 'unchanged:'
123
143
show_list(self.unchanged)
127
def compare_trees(old_tree, new_tree, want_unchanged=False, specific_files=None):
146
def compare_trees(old_tree, new_tree, want_unchanged=False,
147
specific_files=None, extra_trees=None,
148
require_versioned=False):
128
149
"""Describe changes from one tree to another.
130
151
Returns a TreeDelta with details of added, modified, renamed, and
150
201
delta = TreeDelta()
151
202
mutter('start compare_trees')
153
# TODO: match for specific files can be rather smarter by finding
154
# the IDs of those files up front and then considering only that.
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for file_id in old_tree:
157
if file_id in new_tree:
158
old_ie = old_inv[file_id]
159
new_ie = new_inv[file_id]
162
assert kind == new_ie.kind
164
assert kind in ('file', 'directory', 'symlink', 'root_directory'), \
165
'invalid file kind %r' % kind
167
if kind == 'root_directory':
171
if (not is_inside_any(specific_files, old_inv.id2path(file_id))
172
and not is_inside_any(specific_files, new_inv.id2path(file_id))):
176
old_sha1 = old_tree.get_file_sha1(file_id)
177
new_sha1 = new_tree.get_file_sha1(file_id)
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text_modified = (old_sha1 != new_sha1)
204
# TODO: Rather than iterating over the whole tree and then filtering, we
205
# could diff just the specified files (if any) and their subtrees.
207
old_files = old_tree.list_files()
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new_files = new_tree.list_files()
219
except StopIteration:
220
return None, None, None, None, None
221
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
222
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
225
def check_matching(old_path, old_entry, new_path, new_entry):
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"""We have matched up 2 file_ids, check for changes."""
227
assert old_entry.kind == new_entry.kind
229
if old_entry.kind == 'root_directory':
232
if specific_file_ids:
233
if (old_file_id not in specific_file_ids and
234
new_file_id not in specific_file_ids):
237
# temporary hack until all entries are populated before clients
239
old_entry._read_tree_state(old_path, old_tree)
240
new_entry._read_tree_state(new_path, new_tree)
241
text_modified, meta_modified = new_entry.detect_changes(old_entry)
243
# If the name changes, or the parent_id changes, we have a rename
244
# (if we move a parent, that doesn't count as a rename for the file)
245
if (old_entry.name != new_entry.name
246
or old_entry.parent_id != new_entry.parent_id):
247
delta.renamed.append((old_path,
249
old_entry.file_id, old_entry.kind,
250
text_modified, meta_modified))
251
elif text_modified or meta_modified:
252
delta.modified.append((new_path, new_entry.file_id, new_entry.kind,
253
text_modified, meta_modified))
255
delta.unchanged.append((new_path, new_entry.file_id, new_entry.kind))
258
def handle_old(path, entry):
259
"""old entry without a new entry match
261
Check to see if a matching new entry was already seen as an
262
added file, and switch the pair into being a rename.
263
Otherwise just mark the old entry being removed.
265
if entry.file_id in added:
266
# Actually this is a rename, we found a new file_id earlier
267
# at a different location, so it is no-longer added
268
x_new_path, x_new_entry = added.pop(entry.file_id)
269
check_matching(path, entry, x_new_path, x_new_entry)
271
# We have an old_file_id which doesn't line up with a new_file_id
272
# So this file looks to be removed
273
assert entry.file_id not in removed
274
removed[entry.file_id] = path, entry
276
def handle_new(path, entry):
277
"""new entry without an old entry match
279
Check to see if a matching old entry was already seen as a
280
removal, and change the pair into a rename.
281
Otherwise just mark the new entry as an added file.
283
if entry.file_id in removed:
284
# We saw this file_id earlier at an old different location
285
# it is no longer removed, just renamed
286
x_old_path, x_old_entry = removed.pop(entry.file_id)
287
check_matching(x_old_path, x_old_entry, path, entry)
289
# We have a new file which does not match an old file
291
assert entry.file_id not in added
292
added[entry.file_id] = path, entry
294
while old_path or new_path:
295
# list_files() returns files in alphabetical path sorted order
296
if old_path == new_path:
297
if old_file_id == new_file_id:
298
# This is the common case, the files are in the same place
299
# check if there were any content changes
301
if old_file_id is None:
302
# We have 2 unversioned files, no deltas possible???
305
check_matching(old_path, old_entry, new_path, new_entry)
180
## mutter("no text to check for %r %r" % (file_id, kind))
181
text_modified = False
183
# TODO: Can possibly avoid calculating path strings if the
184
# two files are unchanged and their names and parents are
185
# the same and the parents are unchanged all the way up.
186
# May not be worthwhile.
188
if (old_ie.name != new_ie.name
189
or old_ie.parent_id != new_ie.parent_id):
190
delta.renamed.append((old_inv.id2path(file_id),
191
new_inv.id2path(file_id),
195
delta.modified.append((new_inv.id2path(file_id), file_id, kind))
197
delta.unchanged.append((new_inv.id2path(file_id), file_id, kind))
199
kind = old_inv.get_file_kind(file_id)
200
if kind == 'root_directory':
202
old_path = old_inv.id2path(file_id)
204
if not is_inside_any(specific_files, old_path):
206
delta.removed.append((old_path, file_id, kind))
208
mutter('start looking for new files')
209
for file_id in new_inv:
210
if file_id in old_inv:
212
kind = new_inv.get_file_kind(file_id)
213
if kind == 'root_directory':
215
new_path = new_inv.id2path(file_id)
217
if not is_inside_any(specific_files, new_path):
219
delta.added.append((new_path, file_id, kind))
307
# The ids don't match, so we have to handle them both
309
if old_file_id is not None:
310
handle_old(old_path, old_entry)
312
if new_file_id is not None:
313
handle_new(new_path, new_entry)
315
# The two entries were at the same path, so increment both sides
316
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
317
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
318
elif new_path is None or (old_path is not None and old_path < new_path):
319
# Assume we don't match, only process old_path
320
if old_file_id is not None:
321
handle_old(old_path, old_entry)
322
# old_path came first, so increment it, trying to match up
323
old_path, old_class, old_kind, old_file_id, old_entry = get_next(old_files)
324
elif new_path is not None:
325
# new_path came first, so increment it, trying to match up
326
if new_file_id is not None:
327
handle_new(new_path, new_entry)
328
new_path, new_class, new_kind, new_file_id, new_entry = get_next(new_files)
330
# Now we have a set of added and removed files, mark them all
331
for old_path, old_entry in removed.itervalues():
332
if specific_file_ids:
333
if not old_entry.file_id in specific_file_ids:
335
delta.removed.append((old_path, old_entry.file_id, old_entry.kind))
336
for new_path, new_entry in added.itervalues():
337
if specific_file_ids:
338
if not new_entry.file_id in specific_file_ids:
340
delta.added.append((new_path, new_entry.file_id, new_entry.kind))
221
342
delta.removed.sort()
222
343
delta.added.sort()
223
344
delta.renamed.sort()
345
# TODO: jam 20060529 These lists shouldn't need to be sorted
346
# since we added them in alphabetical order.
224
347
delta.modified.sort()
225
348
delta.unchanged.sort()