87
90
def warn_unusual_mode(commit, path, mode):
88
trace.mutter("Unusual file mode %o for %s in %s. Storing as revision property. ",
92
def squash_revision(target_repo, rev):
93
"""Remove characters that can't be stored from a revision, if necessary.
95
:param target_repo: Repository in which the revision will be stored
96
:param rev: Revision object, will be modified in-place
98
if not getattr(target_repo._serializer, "squashes_xml_invalid_characters", True):
100
from bzrlib.xml_serializer import escape_invalid_chars
101
rev.message, num_escaped = escape_invalid_chars(rev.message)
103
warn_escaped(rev.foreign_revid, num_escaped)
104
if 'author' in rev.properties:
105
rev.properties['author'], num_escaped = escape_invalid_chars(
106
rev.properties['author'])
108
warn_escaped(rev.foreign_revid, num_escaped)
109
rev.committer, num_escaped = escape_invalid_chars(rev.committer)
111
warn_escaped(rev.foreign_revid, num_escaped)
91
trace.mutter("Unusual file mode %o for %s in %s. Storing as revision "
92
"property. ", mode, path, commit)
114
95
class BzrGitMapping(foreign.VcsMapping):
115
96
"""Class that maps between Git and Bazaar semantics."""
116
97
experimental = False
99
BZR_FILE_IDS_FILE = None
101
BZR_DUMMY_FILE = None
118
103
def __init__(self):
119
104
super(BzrGitMapping, self).__init__(foreign_git)
121
106
def __eq__(self, other):
122
return type(self) == type(other) and self.revid_prefix == other.revid_prefix
107
return (type(self) == type(other) and
108
self.revid_prefix == other.revid_prefix)
125
111
def revision_id_foreign_to_bzr(cls, git_rev_id):
126
112
"""Convert a git revision id handle to a Bazaar revision id."""
113
from dulwich.protocol import ZERO_SHA
114
if git_rev_id == ZERO_SHA:
127
116
return "%s:%s" % (cls.revid_prefix, git_rev_id)
141
130
return escape_file_id(path)
132
def is_control_file(self, path):
133
return path in (self.BZR_FILE_IDS_FILE, self.BZR_DUMMY_FILE)
143
135
def parse_file_id(self, file_id):
144
136
if file_id == ROOT_ID:
146
138
return unescape_file_id(file_id)
140
def revid_as_refname(self, revid):
142
return "refs/bzr/%s" % urllib.quote(revid)
148
144
def import_unusual_file_modes(self, rev, unusual_file_modes):
149
145
if unusual_file_modes:
150
ret = [(name, unusual_file_modes[name]) for name in sorted(unusual_file_modes.keys())]
146
ret = [(path, unusual_file_modes[path])
147
for path in sorted(unusual_file_modes.keys())]
151
148
rev.properties['file-modes'] = bencode.bencode(ret)
153
150
def export_unusual_file_modes(self, rev):
155
return dict([(self.generate_file_id(path), mode) for (path, mode) in bencode.bdecode(rev.properties['file-modes'].encode("utf-8"))])
152
file_modes = rev.properties['file-modes']
156
return dict([(self.generate_file_id(path), mode) for (path, mode) in bencode.bdecode(file_modes.encode("utf-8"))])
159
def _generate_git_svn_metadata(self, rev):
158
def _generate_git_svn_metadata(self, rev, encoding):
161
return "\ngit-svn-id: %s\n" % rev.properties["git-svn-id"].encode("utf-8")
160
git_svn_id = rev.properties["git-svn-id"]
164
return "\ngit-svn-id: %s\n" % git_svn_id.encode(encoding)
165
166
def _generate_hg_message_tail(self, rev):
197
200
for name, value in extra.iteritems():
198
201
rev.properties['hg:extra:' + name] = base64.b64encode(value)
200
rev.properties['hg:renames'] = base64.b64encode(bencode.bencode([(new, old) for (old, new) in renames.iteritems()]))
203
rev.properties['hg:renames'] = base64.b64encode(bencode.bencode(
204
[(new, old) for (old, new) in renames.iteritems()]))
203
def _decode_commit_message(self, rev, message):
204
return message.decode("utf-8", "replace")
206
def _encode_commit_message(self, rev, message):
207
return message.encode("utf-8")
209
def export_commit(self, rev, tree_sha, parent_lookup):
207
def _extract_bzr_metadata(self, rev, message):
208
(message, metadata) = extract_bzr_metadata(message)
209
return message, metadata
211
def _decode_commit_message(self, rev, message, encoding):
212
return message.decode(encoding), BzrGitRevisionMetadata()
214
def _encode_commit_message(self, rev, message, encoding):
215
return message.encode(encoding)
217
def export_fileid_map(self, fileid_map):
218
"""Export a file id map to a fileid map.
220
:param fileid_map: File id map, mapping paths to file ids
221
:return: A Git blob object
223
from dulwich.objects import Blob
225
b.set_raw_chunks(serialize_fileid_map(fileid_map))
228
def export_commit(self, rev, tree_sha, parent_lookup, roundtrip):
210
229
"""Turn a Bazaar revision in to a Git commit
212
231
:param tree_sha: Tree sha for the commit
213
:param parent_lookup: Function for looking up the GIT sha equiv of a bzr revision
232
:param parent_lookup: Function for looking up the GIT sha equiv of a
214
234
:return dulwich.objects.Commit represent the revision:
216
236
from dulwich.objects import Commit
217
237
commit = Commit()
218
238
commit.tree = tree_sha
240
metadata = BzrGitRevisionMetadata()
219
244
for p in rev.parent_ids:
221
246
git_p = parent_lookup(p)
249
if metadata is not None:
250
metadata.explicit_parent_ids = rev.parent_ids
224
251
if git_p is not None:
225
252
assert len(git_p) == 40, "unexpected length for %r" % git_p
226
commit.parents.append(git_p)
227
commit.committer = fix_person_identifier(rev.committer.encode("utf-8"))
228
commit.author = fix_person_identifier(rev.get_apparent_authors()[0].encode("utf-8"))
253
parents.append(git_p)
254
commit.parents = parents
256
encoding = rev.properties['git-explicit-encoding']
258
encoding = rev.properties.get('git-implicit-encoding', 'utf-8')
259
commit.encoding = rev.properties.get('git-explicit-encoding')
260
commit.committer = fix_person_identifier(rev.committer.encode(
262
commit.author = fix_person_identifier(
263
rev.get_apparent_authors()[0].encode(encoding))
229
264
commit.commit_time = long(rev.timestamp)
230
265
if 'author-timestamp' in rev.properties:
231
266
commit.author_time = long(rev.properties['author-timestamp'])
233
268
commit.author_time = commit.commit_time
269
commit._commit_timezone_neg_utc = "commit-timezone-neg-utc" in rev.properties
234
270
commit.commit_timezone = rev.timezone
271
commit._author_timezone_neg_utc = "author-timezone-neg-utc" in rev.properties
235
272
if 'author-timezone' in rev.properties:
236
273
commit.author_timezone = int(rev.properties['author-timezone'])
238
275
commit.author_timezone = commit.commit_timezone
239
commit.message = self._encode_commit_message(rev, rev.message)
276
commit.message = self._encode_commit_message(rev, rev.message,
278
assert type(commit.message) == str
279
if metadata is not None:
281
mapping_registry.parse_revision_id(rev.revision_id)
282
except errors.InvalidRevisionId:
283
metadata.revision_id = rev.revision_id
284
mapping_properties = set(
285
['author', 'author-timezone', 'author-timezone-neg-utc',
286
'commit-timezone-neg-utc', 'git-implicit-encoding',
287
'git-explicit-encoding', 'author-timestamp', 'file-modes'])
288
for k, v in rev.properties.iteritems():
289
if not k in mapping_properties:
290
metadata.properties[k] = v
291
if self.roundtripping:
292
commit.message = inject_bzr_metadata(commit.message, metadata,
294
assert type(commit.message) == str
242
def import_commit(self, commit):
297
def import_fileid_map(self, blob):
298
"""Convert a git file id map blob.
300
:param blob: Git blob object with fileid map
301
:return: Dictionary mapping paths to file ids
303
return deserialize_fileid_map(blob.data)
305
def import_commit(self, commit, lookup_parent_revid):
243
306
"""Convert a git commit to a bzr revision.
245
:return: a `bzrlib.revision.Revision` object.
308
:return: a `bzrlib.revision.Revision` object and a
309
dictionary of path -> file ids
247
311
if commit is None:
248
312
raise AssertionError("Commit object can't be None")
249
rev = ForeignRevision(commit.id, self, self.revision_id_foreign_to_bzr(commit.id))
250
rev.parent_ids = tuple([self.revision_id_foreign_to_bzr(p) for p in commit.parents])
251
rev.committer = str(commit.committer).decode("utf-8", "replace")
252
if commit.committer != commit.author:
253
rev.properties['author'] = str(commit.author).decode("utf-8", "replace")
313
rev = ForeignRevision(commit.id, self,
314
self.revision_id_foreign_to_bzr(commit.id))
315
rev.parent_ids = tuple([lookup_parent_revid(p) for p in commit.parents])
316
rev.git_metadata = None
317
def decode_using_encoding(rev, commit, encoding):
318
rev.committer = str(commit.committer).decode(encoding)
319
if commit.committer != commit.author:
320
rev.properties['author'] = str(commit.author).decode(encoding)
321
rev.message, rev.git_metadata = self._decode_commit_message(
322
rev, commit.message, encoding)
323
if commit.encoding is not None:
324
rev.properties['git-explicit-encoding'] = commit.encoding
325
decode_using_encoding(rev, commit, commit.encoding)
327
for encoding in ('utf-8', 'latin1'):
329
decode_using_encoding(rev, commit, encoding)
330
except UnicodeDecodeError:
333
if encoding != 'utf-8':
334
rev.properties['git-implicit-encoding'] = encoding
255
336
if commit.commit_time != commit.author_time:
256
337
rev.properties['author-timestamp'] = str(commit.author_time)
257
338
if commit.commit_timezone != commit.author_timezone:
258
rev.properties['author-timezone'] = "%d" % (commit.author_timezone, )
339
rev.properties['author-timezone'] = "%d" % commit.author_timezone
340
if commit._author_timezone_neg_utc:
341
rev.properties['author-timezone-neg-utc'] = ""
342
if commit._commit_timezone_neg_utc:
343
rev.properties['commit-timezone-neg-utc'] = ""
259
344
rev.timestamp = commit.commit_time
260
345
rev.timezone = commit.commit_timezone
261
rev.message = self._decode_commit_message(rev, commit.message)
346
if rev.git_metadata is not None:
347
md = rev.git_metadata
349
rev.revision_id = md.revision_id
350
if md.explicit_parent_ids:
351
rev.parent_ids = md.explicit_parent_ids
352
rev.properties.update(md.properties)
355
def get_fileid_map(self, lookup_object, tree_sha):
356
"""Obtain a fileid map for a particular tree.
358
:param lookup_object: Function for looking up an object
359
:param tree_sha: SHA of the root tree
360
:return: GitFileIdMap instance
363
file_id_map_sha = lookup_object(tree_sha)[self.BZR_FILE_IDS_FILE][1]
367
file_ids = self.import_fileid_map(lookup_object(file_id_map_sha))
368
return GitFileIdMap(file_ids, self)
265
371
class BzrGitMappingv1(BzrGitMapping):
266
372
revid_prefix = 'git-v1'
273
379
class BzrGitMappingExperimental(BzrGitMappingv1):
274
380
revid_prefix = 'git-experimental'
275
381
experimental = True
277
def _decode_commit_message(self, rev, message):
384
BZR_FILE_IDS_FILE = '.bzrfileids'
386
BZR_DUMMY_FILE = '.bzrdummy'
388
def _decode_commit_message(self, rev, message, encoding):
278
389
message = self._extract_hg_metadata(rev, message)
279
390
message = self._extract_git_svn_metadata(rev, message)
280
return message.decode("utf-8", "replace")
391
message, metadata = self._extract_bzr_metadata(rev, message)
392
return message.decode(encoding), metadata
282
def _encode_commit_message(self, rev, message):
283
ret = message.encode("utf-8")
394
def _encode_commit_message(self, rev, message, encoding):
395
ret = message.encode(encoding)
284
396
ret += self._generate_hg_message_tail(rev)
285
ret += self._generate_git_svn_metadata(rev)
397
ret += self._generate_git_svn_metadata(rev, encoding)
288
def import_commit(self, commit):
289
rev = super(BzrGitMappingExperimental, self).import_commit(commit)
400
def import_commit(self, commit, lookup_parent_revid):
401
rev, file_ids = super(BzrGitMappingExperimental, self).import_commit(commit, lookup_parent_revid)
290
402
rev.properties['converted_revision'] = "git %s\n" % commit.id
294
406
class GitMappingRegistry(VcsMappingRegistry):
424
540
tree.add(mode, name.encode("utf-8"), hexsha)
425
541
if entry.parent_id is not None and len(tree) == 0:
426
542
# Only the root can be an empty tree
543
if empty_file_name is not None:
544
tree.add(stat.S_IFREG | 0644, empty_file_name,
432
551
def extract_unusual_modes(rev):
434
foreign_revid, mapping = mapping_registry.parse_revision_id(rev.revision_id)
553
foreign_revid, mapping = mapping_registry.parse_revision_id(
435
555
except errors.InvalidRevisionId:
438
558
return mapping.export_unusual_file_modes(rev)
441
def inventory_to_tree_and_blobs(inventory, texts, mapping, unusual_modes, cur=None):
442
"""Convert a Bazaar tree to a Git tree.
444
:return: Yields tuples with object sha1, object and path
446
from dulwich.objects import Tree
453
# stack contains the set of trees that we haven't
454
# finished constructing
455
for path, entry in inventory.iter_entries():
456
while stack and not path.startswith(osutils.pathjoin(cur, "")):
457
# We've hit a file that's not a child of the previous path
460
yield sha, tree, cur.encode("utf-8")
461
mode = unusual_modes.get(cur.encode("utf-8"), stat.S_IFDIR)
462
t = (mode, urlutils.basename(cur).encode('UTF-8'), sha)
463
cur, tree = stack.pop()
466
if entry.kind == "directory":
467
stack.append((cur, tree))
471
if entry.kind == "file":
472
blob = text_to_blob(texts, entry)
473
elif entry.kind == "symlink":
474
blob = symlink_to_blob(entry)
476
raise AssertionError("Unknown kind %s" % entry.kind)
478
yield sha, blob, path.encode("utf-8")
479
name = urlutils.basename(path).encode("utf-8")
480
mode = unusual_modes.get(path.encode("utf-8"), entry_mode(entry))
481
tree.add(mode, name, sha)
483
while len(stack) > 1:
486
yield sha, tree, cur.encode("utf-8")
487
mode = unusual_modes.get(cur.encode('utf-8'), stat.S_IFDIR)
488
t = (mode, urlutils.basename(cur).encode('UTF-8'), sha)
489
cur, tree = stack.pop()
493
yield tree.id, tree, cur.encode("utf-8")
496
561
def parse_git_svn_id(text):
497
562
(head, uuid) = text.rsplit(" ", 1)
498
563
(full_url, rev) = head.rsplit("@", 1)
499
564
return (full_url, int(rev), uuid)
567
class GitFileIdMap(object):
569
def __init__(self, file_ids, mapping):
570
self.file_ids = file_ids
572
self.mapping = mapping
574
def lookup_file_id(self, path):
576
return self.file_ids[path]
578
return self.mapping.generate_file_id(path)
580
def lookup_path(self, file_id):
581
if self.paths is None:
583
for k, v in self.file_ids.iteritems():
586
return self.paths[file_id]
588
return self.mapping.parse_file_id(file_id)