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
107
return (type(self) == type(other) and
123
108
self.revid_prefix == other.revid_prefix)
126
111
def revision_id_foreign_to_bzr(cls, git_rev_id):
127
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:
128
116
return "%s:%s" % (cls.revid_prefix, git_rev_id)
139
127
# We must just hope they are valid UTF-8..
130
if type(path) is unicode:
131
path = path.encode("utf-8")
142
132
return escape_file_id(path)
134
def is_control_file(self, path):
135
return path in (self.BZR_FILE_IDS_FILE, self.BZR_DUMMY_FILE)
144
137
def parse_file_id(self, file_id):
145
138
if file_id == ROOT_ID:
147
140
return unescape_file_id(file_id)
142
def revid_as_refname(self, revid):
144
return "refs/bzr/%s" % urllib.quote(revid)
149
146
def import_unusual_file_modes(self, rev, unusual_file_modes):
150
147
if unusual_file_modes:
151
ret = [(name, unusual_file_modes[name])
152
for name in sorted(unusual_file_modes.keys())]
148
ret = [(path, unusual_file_modes[path])
149
for path in sorted(unusual_file_modes.keys())]
153
150
rev.properties['file-modes'] = bencode.bencode(ret)
155
152
def export_unusual_file_modes(self, rev):
157
return dict([(self.generate_file_id(path), mode) for (path, mode) in bencode.bdecode(rev.properties['file-modes'].encode("utf-8"))])
154
file_modes = rev.properties['file-modes']
158
return dict([(self.generate_file_id(path), mode) for (path, mode) in bencode.bdecode(file_modes.encode("utf-8"))])
161
160
def _generate_git_svn_metadata(self, rev, encoding):
163
return "\ngit-svn-id: %s\n" % rev.properties["git-svn-id"].encode(encoding)
162
git_svn_id = rev.properties["git-svn-id"]
166
return "\ngit-svn-id: %s\n" % git_svn_id.encode(encoding)
167
168
def _generate_hg_message_tail(self, rev):
172
173
if name == 'hg:extra:branch':
173
174
branch = rev.properties['hg:extra:branch']
174
175
elif name.startswith('hg:extra'):
175
extra[name[len('hg:extra:'):]] = base64.b64decode(rev.properties[name])
176
extra[name[len('hg:extra:'):]] = base64.b64decode(
177
rev.properties[name])
176
178
elif name == 'hg:renames':
177
renames = bencode.bdecode(base64.b64decode(rev.properties['hg:renames']))
179
renames = bencode.bdecode(base64.b64decode(
180
rev.properties['hg:renames']))
178
181
# TODO: Export other properties as 'bzr:' extras?
179
182
ret = format_hg_metadata(renames, branch, extra)
180
183
assert isinstance(ret, str)
199
202
for name, value in extra.iteritems():
200
203
rev.properties['hg:extra:' + name] = base64.b64encode(value)
202
rev.properties['hg:renames'] = base64.b64encode(bencode.bencode([(new, old) for (old, new) in renames.iteritems()]))
205
rev.properties['hg:renames'] = base64.b64encode(bencode.bencode(
206
[(new, old) for (old, new) in renames.iteritems()]))
209
def _extract_bzr_metadata(self, rev, message):
210
(message, metadata) = extract_bzr_metadata(message)
211
return message, metadata
205
213
def _decode_commit_message(self, rev, message, encoding):
206
return message.decode(encoding)
214
return message.decode(encoding), BzrGitRevisionMetadata()
208
216
def _encode_commit_message(self, rev, message, encoding):
209
217
return message.encode(encoding)
211
def export_commit(self, rev, tree_sha, parent_lookup):
219
def export_fileid_map(self, fileid_map):
220
"""Export a file id map to a fileid map.
222
:param fileid_map: File id map, mapping paths to file ids
223
:return: A Git blob object
225
from dulwich.objects import Blob
227
b.set_raw_chunks(serialize_fileid_map(fileid_map))
230
def export_commit(self, rev, tree_sha, parent_lookup, roundtrip,
212
232
"""Turn a Bazaar revision in to a Git commit
214
234
:param tree_sha: Tree sha for the commit
215
:param parent_lookup: Function for looking up the GIT sha equiv of a bzr revision
235
:param parent_lookup: Function for looking up the GIT sha equiv of a
237
:param roundtrip: Whether to store roundtripping information.
238
:param verifiers: Verifiers info
216
239
:return dulwich.objects.Commit represent the revision:
218
241
from dulwich.objects import Commit
219
242
commit = Commit()
220
243
commit.tree = tree_sha
245
metadata = BzrGitRevisionMetadata()
246
metadata.verifiers = verifiers
221
250
for p in rev.parent_ids:
223
252
git_p = parent_lookup(p)
255
if metadata is not None:
256
metadata.explicit_parent_ids = rev.parent_ids
226
257
if git_p is not None:
227
258
assert len(git_p) == 40, "unexpected length for %r" % git_p
228
commit.parents.append(git_p)
259
parents.append(git_p)
260
commit.parents = parents
230
262
encoding = rev.properties['git-explicit-encoding']
240
272
commit.author_time = long(rev.properties['author-timestamp'])
242
274
commit.author_time = commit.commit_time
275
commit._commit_timezone_neg_utc = "commit-timezone-neg-utc" in rev.properties
243
276
commit.commit_timezone = rev.timezone
277
commit._author_timezone_neg_utc = "author-timezone-neg-utc" in rev.properties
244
278
if 'author-timezone' in rev.properties:
245
279
commit.author_timezone = int(rev.properties['author-timezone'])
247
281
commit.author_timezone = commit.commit_timezone
248
282
commit.message = self._encode_commit_message(rev, rev.message,
284
assert type(commit.message) == str
285
if metadata is not None:
287
mapping_registry.parse_revision_id(rev.revision_id)
288
except errors.InvalidRevisionId:
289
metadata.revision_id = rev.revision_id
290
mapping_properties = set(
291
['author', 'author-timezone', 'author-timezone-neg-utc',
292
'commit-timezone-neg-utc', 'git-implicit-encoding',
293
'git-explicit-encoding', 'author-timestamp', 'file-modes'])
294
for k, v in rev.properties.iteritems():
295
if not k in mapping_properties:
296
metadata.properties[k] = v
297
if self.roundtripping:
298
commit.message = inject_bzr_metadata(commit.message, metadata,
300
assert type(commit.message) == str
252
def import_commit(self, commit):
303
def import_fileid_map(self, blob):
304
"""Convert a git file id map blob.
306
:param blob: Git blob object with fileid map
307
:return: Dictionary mapping paths to file ids
309
return deserialize_fileid_map(blob.data)
311
def import_commit(self, commit, lookup_parent_revid):
253
312
"""Convert a git commit to a bzr revision.
255
:return: a `bzrlib.revision.Revision` object.
314
:return: a `bzrlib.revision.Revision` object, foreign revid and a
257
317
if commit is None:
258
318
raise AssertionError("Commit object can't be None")
259
rev = ForeignRevision(commit.id, self, self.revision_id_foreign_to_bzr(commit.id))
260
rev.parent_ids = tuple([self.revision_id_foreign_to_bzr(p) for p in commit.parents])
319
rev = ForeignRevision(commit.id, self,
320
self.revision_id_foreign_to_bzr(commit.id))
321
rev.parent_ids = tuple([lookup_parent_revid(p) for p in commit.parents])
322
rev.git_metadata = None
261
323
def decode_using_encoding(rev, commit, encoding):
262
324
rev.committer = str(commit.committer).decode(encoding)
263
325
if commit.committer != commit.author:
264
326
rev.properties['author'] = str(commit.author).decode(encoding)
265
rev.message = self._decode_commit_message(rev, commit.message,
327
rev.message, rev.git_metadata = self._decode_commit_message(
328
rev, commit.message, encoding)
267
329
if commit.encoding is not None:
268
330
rev.properties['git-explicit-encoding'] = commit.encoding
269
331
decode_using_encoding(rev, commit, commit.encoding)
280
342
if commit.commit_time != commit.author_time:
281
343
rev.properties['author-timestamp'] = str(commit.author_time)
282
344
if commit.commit_timezone != commit.author_timezone:
283
rev.properties['author-timezone'] = "%d" % (commit.author_timezone, )
345
rev.properties['author-timezone'] = "%d" % commit.author_timezone
346
if commit._author_timezone_neg_utc:
347
rev.properties['author-timezone-neg-utc'] = ""
348
if commit._commit_timezone_neg_utc:
349
rev.properties['commit-timezone-neg-utc'] = ""
284
350
rev.timestamp = commit.commit_time
285
351
rev.timezone = commit.commit_timezone
352
if rev.git_metadata is not None:
353
md = rev.git_metadata
354
roundtrip_revid = md.revision_id
355
if md.explicit_parent_ids:
356
rev.parent_ids = md.explicit_parent_ids
357
rev.properties.update(md.properties)
358
verifiers = md.verifiers
360
roundtrip_revid = None
362
return rev, roundtrip_revid, verifiers
364
def get_fileid_map(self, lookup_object, tree_sha):
365
"""Obtain a fileid map for a particular tree.
367
:param lookup_object: Function for looking up an object
368
:param tree_sha: SHA of the root tree
369
:return: GitFileIdMap instance
372
file_id_map_sha = lookup_object(tree_sha)[self.BZR_FILE_IDS_FILE][1]
376
file_ids = self.import_fileid_map(lookup_object(file_id_map_sha))
377
return GitFileIdMap(file_ids, self)
289
380
class BzrGitMappingv1(BzrGitMapping):
297
388
class BzrGitMappingExperimental(BzrGitMappingv1):
298
389
revid_prefix = 'git-experimental'
299
390
experimental = True
393
BZR_FILE_IDS_FILE = '.bzrfileids'
395
BZR_DUMMY_FILE = '.bzrdummy'
301
397
def _decode_commit_message(self, rev, message, encoding):
302
398
message = self._extract_hg_metadata(rev, message)
303
399
message = self._extract_git_svn_metadata(rev, message)
304
return message.decode(encoding)
400
message, metadata = self._extract_bzr_metadata(rev, message)
401
return message.decode(encoding), metadata
306
403
def _encode_commit_message(self, rev, message, encoding):
307
404
ret = message.encode(encoding)
309
406
ret += self._generate_git_svn_metadata(rev, encoding)
312
def import_commit(self, commit):
313
rev = super(BzrGitMappingExperimental, self).import_commit(commit)
409
def import_commit(self, commit, lookup_parent_revid):
410
rev, roundtrip_revid, verifiers = super(BzrGitMappingExperimental, self).import_commit(commit, lookup_parent_revid)
314
411
rev.properties['converted_revision'] = "git %s\n" % commit.id
412
return rev, roundtrip_revid, verifiers
318
415
class GitMappingRegistry(VcsMappingRegistry):
368
466
default_mapping = mapping_registry.get_default()()
371
def text_to_blob(texts, entry):
372
from dulwich.objects import Blob
373
text = texts.get_record_stream([(entry.file_id, entry.revision)], 'unordered', True).next().get_bytes_as('fulltext')
379
469
def symlink_to_blob(entry):
380
470
from dulwich.objects import Blob
382
blob._text = entry.symlink_target
472
symlink_target = entry.symlink_target
473
if type(symlink_target) == unicode:
474
symlink_target = symlink_target.encode('utf-8')
475
blob.data = symlink_target
434
527
return object_mode(entry.kind, entry.executable)
437
def directory_to_tree(entry, lookup_ie_sha1, unusual_modes):
438
from dulwich.objects import Tree
530
def directory_to_tree(entry, lookup_ie_sha1, unusual_modes, empty_file_name):
531
"""Create a Git Tree object from a Bazaar directory.
533
:param entry: Inventory entry
534
:param lookup_ie_sha1: Lookup the Git SHA1 for a inventory entry
535
:param unusual_modes: Dictionary with unusual file modes by file ids
536
:param empty_file_name: Name to use for dummy files in empty directories,
537
None to ignore empty directories.
539
from dulwich.objects import Blob, Tree
440
for name in sorted(entry.children.keys()):
541
for name, value in entry.children.iteritems():
441
542
ie = entry.children[name]
443
544
mode = unusual_modes[ie.file_id]
448
549
tree.add(mode, name.encode("utf-8"), hexsha)
449
550
if entry.parent_id is not None and len(tree) == 0:
450
551
# Only the root can be an empty tree
552
if empty_file_name is not None:
553
tree.add(stat.S_IFREG | 0644, empty_file_name,
456
560
def extract_unusual_modes(rev):
458
foreign_revid, mapping = mapping_registry.parse_revision_id(rev.revision_id)
562
foreign_revid, mapping = mapping_registry.parse_revision_id(
459
564
except errors.InvalidRevisionId:
462
567
return mapping.export_unusual_file_modes(rev)
465
def inventory_to_tree_and_blobs(inventory, texts, mapping, unusual_modes, cur=None):
466
"""Convert a Bazaar tree to a Git tree.
468
:return: Yields tuples with object sha1, object and path
470
from dulwich.objects import Tree
477
# stack contains the set of trees that we haven't
478
# finished constructing
479
for path, entry in inventory.iter_entries():
480
while stack and not path.startswith(osutils.pathjoin(cur, "")):
481
# We've hit a file that's not a child of the previous path
484
yield sha, tree, cur.encode("utf-8")
485
mode = unusual_modes.get(cur.encode("utf-8"), stat.S_IFDIR)
486
t = (mode, urlutils.basename(cur).encode('UTF-8'), sha)
487
cur, tree = stack.pop()
490
if entry.kind == "directory":
491
stack.append((cur, tree))
495
if entry.kind == "file":
496
blob = text_to_blob(texts, entry)
497
elif entry.kind == "symlink":
498
blob = symlink_to_blob(entry)
500
raise AssertionError("Unknown kind %s" % entry.kind)
502
yield sha, blob, path.encode("utf-8")
503
name = urlutils.basename(path).encode("utf-8")
504
mode = unusual_modes.get(path.encode("utf-8"), entry_mode(entry))
505
tree.add(mode, name, sha)
507
while len(stack) > 1:
510
yield sha, tree, cur.encode("utf-8")
511
mode = unusual_modes.get(cur.encode('utf-8'), stat.S_IFDIR)
512
t = (mode, urlutils.basename(cur).encode('UTF-8'), sha)
513
cur, tree = stack.pop()
517
yield tree.id, tree, cur.encode("utf-8")
520
570
def parse_git_svn_id(text):
521
571
(head, uuid) = text.rsplit(" ", 1)
522
572
(full_url, rev) = head.rsplit("@", 1)
523
573
return (full_url, int(rev), uuid)
576
class GitFileIdMap(object):
578
def __init__(self, file_ids, mapping):
579
self.file_ids = file_ids
581
self.mapping = mapping
583
def lookup_file_id(self, path):
584
assert type(path) is str
586
file_id = self.file_ids[path]
588
file_id = self.mapping.generate_file_id(path)
589
assert type(file_id) is str
592
def lookup_path(self, file_id):
593
if self.paths is None:
595
for k, v in self.file_ids.iteritems():
598
path = self.paths[file_id]
600
return self.mapping.parse_file_id(file_id)
602
assert type(path) is str