154
140
if ie.revision is None:
155
141
# Need to store a new revision
156
142
ie.revision = revision_id
157
assert file_id is not None
158
143
assert ie.revision is not None
159
texts.insert_record_stream([FulltextContentFactory((file_id, ie.revision), tuple(parent_keys), ie.text_sha1, blob.data)])
160
shamap = [(hexsha, "blob", (ie.file_id, ie.revision))]
163
if file_id in base_inv:
164
old_path = base_inv.id2path(file_id)
144
if ie.kind == 'symlink':
147
chunks = blob.chunked
148
texts.insert_record_stream([ChunkedContentFactory((file_id, ie.revision), tuple(parent_keys), ie.text_sha1, chunks)])
150
if base_hexsha is not None:
151
old_path = path # Renames are not supported yet
152
if stat.S_ISDIR(base_mode):
153
invdelta.extend(remove_disappeared_children(base_inv, old_path,
154
lookup_object(base_hexsha), [], lookup_object))
167
invdelta = [(old_path, path, file_id, ie)]
168
invdelta.extend(remove_disappeared_children(base_inv, base_ie, []))
169
return (invdelta, shamap)
172
def import_git_submodule(texts, mapping, path, hexsha, base_inv, parent_id,
173
revision_id, parent_invs, shagitmap, lookup_object):
174
raise NotImplementedError(import_git_submodule)
177
def remove_disappeared_children(base_inv, base_ie, existing_children):
178
if base_ie is None or base_ie.kind != 'directory':
157
invdelta.append((old_path, path, file_id, ie))
158
if base_hexsha != hexsha:
159
store_updater.add_object(blob, ie)
163
class SubmodulesRequireSubtrees(BzrError):
164
_fmt = """The repository you are fetching from contains submodules. To continue, upgrade your Bazaar repository to a format that supports nested trees, such as 'development-subtree'."""
168
def import_git_submodule(texts, mapping, path, name, (base_hexsha, hexsha),
169
base_inv, parent_id, revision_id, parent_invs, lookup_object,
170
(base_mode, mode), store_updater, lookup_file_id):
171
if base_hexsha == hexsha and base_mode == mode:
173
file_id = lookup_file_id(path)
174
ie = TreeReference(file_id, name.decode("utf-8"), parent_id)
175
ie.revision = revision_id
176
if base_hexsha is None:
180
ie.reference_revision = mapping.revision_id_foreign_to_bzr(hexsha)
181
texts.insert_record_stream([ChunkedContentFactory((file_id, ie.revision), (), None, [])])
182
invdelta = [(oldpath, path, file_id, ie)]
186
def remove_disappeared_children(base_inv, path, base_tree, existing_children,
181
deletable = [v for k,v in base_ie.children.iteritems() if k not in existing_children]
184
ret.append((base_inv.id2path(ie.file_id), None, ie.file_id, None))
185
if ie.kind == "directory":
186
deletable.extend(ie.children.values())
189
for name, mode, hexsha in base_tree.iteritems():
190
if name in existing_children:
192
c_path = posixpath.join(path, name.decode("utf-8"))
193
ret.append((c_path, None, base_inv.path2id(c_path), None))
194
if stat.S_ISDIR(mode):
195
ret.extend(remove_disappeared_children(
196
base_inv, c_path, lookup_object(hexsha), [], lookup_object))
190
def import_git_tree(texts, mapping, path, hexsha, base_inv, parent_id,
191
revision_id, parent_invs, shagitmap, lookup_object):
200
def import_git_tree(texts, mapping, path, name, (base_hexsha, hexsha),
201
base_inv, parent_id, revision_id, parent_invs,
202
lookup_object, (base_mode, mode), store_updater,
203
lookup_file_id, allow_submodules=False):
192
204
"""Import a git tree object into a bzr repository.
194
206
:param texts: VersionedFiles object to add to
197
209
:param base_inv: Base inventory against which to return inventory delta
198
210
:return: Inventory delta for this subtree
212
if base_hexsha == hexsha and base_mode == mode:
213
# If nothing has changed since the base revision, we're done
201
file_id = mapping.generate_file_id(path)
216
file_id = lookup_file_id(path)
202
217
# We just have to hope this is indeed utf-8:
203
ie = InventoryDirectory(file_id, urlutils.basename(path.decode("utf-8")),
206
base_ie = base_inv[file_id]
208
# Newly appeared here
218
ie = InventoryDirectory(file_id, name.decode("utf-8"), parent_id)
219
tree = lookup_object(hexsha)
220
if base_hexsha is None:
222
old_path = None # Newly appeared here
224
base_tree = lookup_object(base_hexsha)
225
old_path = path # Renames aren't supported yet
226
if base_tree is None or type(base_tree) is not Tree:
210
227
ie.revision = revision_id
211
texts.add_lines((file_id, ie.revision), (), [])
212
invdelta.append((None, path, file_id, ie))
214
# See if this has changed at all
216
base_sha = shagitmap.lookup_tree(file_id, base_inv.revision_id)
220
if base_sha == hexsha:
221
# If nothing has changed since the base revision, we're done
223
if base_ie.kind != "directory":
224
ie.revision = revision_id
225
texts.add_lines((ie.file_id, ie.revision), (), [])
226
invdelta.append((base_inv.id2path(ie.file_id), path, ie.file_id, ie))
228
invdelta.append((old_path, path, ie.file_id, ie))
229
texts.insert_record_stream([ChunkedContentFactory((ie.file_id, ie.revision), (), None, [])])
227
230
# Remember for next time
228
231
existing_children = set()
231
tree = lookup_object(hexsha)
232
for mode, name, child_hexsha in tree.entries():
233
basename = name.decode("utf-8")
234
existing_children.add(basename)
235
child_path = osutils.pathjoin(path, name)
236
if stat.S_ISDIR(mode):
237
subinvdelta, grandchildmodes, subshamap = import_git_tree(
238
texts, mapping, child_path, child_hexsha, base_inv,
239
file_id, revision_id, parent_invs, shagitmap, lookup_object)
240
invdelta.extend(subinvdelta)
241
child_modes.update(grandchildmodes)
242
shamap.extend(subshamap)
243
elif S_ISGITLINK(mode): # submodule
244
subinvdelta, grandchildmodes, subshamap = import_git_submodule(
245
texts, mapping, child_path, child_hexsha, base_inv,
246
file_id, revision_id, parent_invs, shagitmap, lookup_object)
247
invdelta.extend(subinvdelta)
248
child_modes.update(grandchildmodes)
249
shamap.extend(subshamap)
251
subinvdelta, subshamap = import_git_blob(texts, mapping,
252
child_path, child_hexsha, base_inv, file_id, revision_id,
253
parent_invs, shagitmap, lookup_object,
254
mode_is_executable(mode), stat.S_ISLNK(mode))
255
invdelta.extend(subinvdelta)
256
shamap.extend(subshamap)
257
if mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
233
for child_mode, name, child_hexsha in tree.entries():
234
existing_children.add(name)
235
child_path = posixpath.join(path, name)
236
if type(base_tree) is Tree:
238
child_base_mode, child_base_hexsha = base_tree[name]
240
child_base_hexsha = None
243
child_base_hexsha = None
245
if stat.S_ISDIR(child_mode):
246
subinvdelta, grandchildmodes = import_git_tree(
247
texts, mapping, child_path, name,
248
(child_base_hexsha, child_hexsha),
249
base_inv, file_id, revision_id, parent_invs, lookup_object,
250
(child_base_mode, child_mode), store_updater,
251
lookup_file_id, allow_submodules=allow_submodules)
252
elif S_ISGITLINK(child_mode): # submodule
253
if not allow_submodules:
254
raise SubmodulesRequireSubtrees()
255
subinvdelta, grandchildmodes = import_git_submodule(
256
texts, mapping, child_path, name,
257
(child_base_hexsha, child_hexsha),
258
base_inv, file_id, revision_id, parent_invs, lookup_object,
259
(child_base_mode, child_mode), store_updater,
262
subinvdelta = import_git_blob(texts, mapping,
263
child_path, name, (child_base_hexsha, child_hexsha),
264
base_inv, file_id, revision_id, parent_invs, lookup_object,
265
(child_base_mode, child_mode), store_updater,
268
child_modes.update(grandchildmodes)
269
invdelta.extend(subinvdelta)
270
if child_mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
258
271
stat.S_IFLNK, DEFAULT_FILE_MODE|0111):
259
child_modes[child_path] = mode
272
child_modes[child_path] = child_mode
260
273
# Remove any children that have disappeared
261
invdelta.extend(remove_disappeared_children(base_inv, base_ie, existing_children))
262
shamap.append((hexsha, "tree", (file_id, revision_id)))
263
return invdelta, child_modes, shamap
266
def import_git_objects(repo, mapping, object_iter, target_git_object_retriever,
274
if base_tree is not None and type(base_tree) is Tree:
275
invdelta.extend(remove_disappeared_children(base_inv, old_path,
276
base_tree, existing_children, lookup_object))
277
store_updater.add_object(tree, ie)
278
return invdelta, child_modes
281
def verify_commit_reconstruction(target_git_object_retriever, lookup_object,
282
o, rev, ret_tree, parent_trees, mapping, unusual_modes):
283
new_unusual_modes = mapping.export_unusual_file_modes(rev)
284
if new_unusual_modes != unusual_modes:
285
raise AssertionError("unusual modes don't match: %r != %r" % (
286
unusual_modes, new_unusual_modes))
287
# Verify that we can reconstruct the commit properly
288
rec_o = target_git_object_retriever._reconstruct_commit(rev, o.tree)
290
raise AssertionError("Reconstructed commit differs: %r != %r" % (
294
for path, obj, ie in _tree_to_objects(ret_tree, parent_trees,
295
target_git_object_retriever._cache.idmap, unusual_modes):
296
old_obj_id = tree_lookup_path(lookup_object, o.tree, path)[1]
298
if obj.id != old_obj_id:
299
diff.append((path, lookup_object(old_obj_id), obj))
300
for (path, old_obj, new_obj) in diff:
301
while (old_obj.type_name == "tree" and
302
new_obj.type_name == "tree" and
303
sorted(old_obj) == sorted(new_obj)):
305
if old_obj[name][0] != new_obj[name][0]:
306
raise AssertionError("Modes for %s differ: %o != %o" % (path, old_obj[name][0], new_obj[name][0]))
307
if old_obj[name][1] != new_obj[name][1]:
308
# Found a differing child, delve deeper
309
path = posixpath.join(path, name)
310
old_obj = lookup_object(old_obj[name][1])
311
new_obj = new_objs[path]
313
raise AssertionError("objects differ for %s: %r != %r" % (path,
317
def import_git_commit(repo, mapping, head, lookup_object,
318
target_git_object_retriever, trees_cache):
319
o = lookup_object(head)
320
rev = mapping.import_commit(o)
321
# We have to do this here, since we have to walk the tree and
322
# we need to make sure to import the blobs / trees with the right
323
# path; this may involve adding them more than once.
324
parent_trees = trees_cache.revision_trees(rev.parent_ids)
325
if parent_trees == []:
326
base_inv = Inventory(root_id=None)
330
base_inv = parent_trees[0].inventory
331
base_tree = lookup_object(o.parents[0]).tree
332
base_mode = stat.S_IFDIR
333
store_updater = target_git_object_retriever._get_updater(rev)
334
store_updater.add_object(o, None)
335
inv_delta, unusual_modes = import_git_tree(repo.texts,
336
mapping, "", u"", (base_tree, o.tree), base_inv,
337
None, rev.revision_id, [p.inventory for p in parent_trees],
338
lookup_object, (base_mode, stat.S_IFDIR), store_updater,
339
mapping.generate_file_id,
340
allow_submodules=getattr(repo._format, "supports_tree_reference", False))
341
store_updater.finish()
342
if unusual_modes != {}:
343
for path, mode in unusual_modes.iteritems():
344
warn_unusual_mode(rev.foreign_revid, path, mode)
345
mapping.import_unusual_file_modes(rev, unusual_modes)
347
basis_id = rev.parent_ids[0]
349
basis_id = NULL_REVISION
351
rev.inventory_sha1, inv = repo.add_inventory_by_delta(basis_id,
352
inv_delta, rev.revision_id, rev.parent_ids,
354
ret_tree = RevisionTree(repo, inv, rev.revision_id)
355
trees_cache.add(ret_tree)
356
repo.add_revision(rev.revision_id, rev)
357
if "verify" in debug.debug_flags:
358
verify_commit_reconstruction(target_git_object_retriever,
359
lookup_object, o, rev, ret_tree, parent_trees, mapping,
363
def import_git_objects(repo, mapping, object_iter,
364
target_git_object_retriever, heads, pb=None, limit=None):
268
365
"""Import a set of git objects into a bzr repository.
270
367
:param repo: Target Bazaar repository
271
368
:param mapping: Mapping to use
272
369
:param object_iter: Iterator over Git objects.
370
:return: Tuple with pack hints and last imported revision id
274
372
def lookup_object(sha):
276
374
return object_iter[sha]
278
376
return target_git_object_retriever[sha]
279
# TODO: a more (memory-)efficient implementation of this
285
parent_invs_cache = LRUCache(50)
379
heads = list(set(heads))
380
trees_cache = LRUTreeCache(repo)
286
381
# Find and convert commit objects
288
383
if pb is not None:
298
393
if repo.has_revision(rev.revision_id):
300
395
squash_revision(repo, rev)
301
root_trees[rev.revision_id] = o.tree
302
revisions[rev.revision_id] = rev
303
graph.append((rev.revision_id, rev.parent_ids))
304
target_git_object_retriever._idmap.add_entry(o.id, "commit",
305
(rev.revision_id, o.tree))
396
graph.append((o.id, o.parents))
306
397
heads.extend([p for p in o.parents if p not in checked])
307
398
elif isinstance(o, Tag):
308
heads.append(o.object[1])
399
if o.object[1] not in checked:
400
heads.append(o.object[1])
310
402
trace.warning("Unable to import head object %r" % o)
312
405
# Order the revisions
313
406
# Create the inventory objects
314
for i, revid in enumerate(topo_sort(graph)):
316
pb.update("fetching revisions", i, len(graph))
317
rev = revisions[revid]
318
# We have to do this here, since we have to walk the tree and
319
# we need to make sure to import the blobs / trees with the right
320
# path; this may involve adding them more than once.
322
for parent_id in rev.parent_ids:
408
revision_ids = topo_sort(graph)
410
if limit is not None:
411
revision_ids = revision_ids[:limit]
413
for offset in range(0, len(revision_ids), batch_size):
414
target_git_object_retriever.start_write_group()
416
repo.start_write_group()
324
parent_invs.append(parent_invs_cache[parent_id])
326
parent_inv = repo.get_inventory(parent_id)
327
parent_invs.append(parent_inv)
328
parent_invs_cache[parent_id] = parent_inv
329
if parent_invs == []:
330
base_inv = Inventory(root_id=None)
418
for i, head in enumerate(
419
revision_ids[offset:offset+batch_size]):
421
pb.update("fetching revisions", offset+i,
423
import_git_commit(repo, mapping, head, lookup_object,
424
target_git_object_retriever,
428
repo.abort_write_group()
431
hint = repo.commit_write_group()
433
pack_hints.extend(hint)
435
target_git_object_retriever.abort_write_group()
332
base_inv = parent_invs[0]
333
inv_delta, unusual_modes, shamap = import_git_tree(repo.texts,
334
mapping, "", root_trees[revid], base_inv, None, revid,
335
parent_invs, target_git_object_retriever._idmap, lookup_object)
336
target_git_object_retriever._idmap.add_entries(shamap)
337
if unusual_modes != {}:
338
for path, mode in unusual_modes.iteritems():
339
warn_unusual_mode(rev.foreign_revid, path, mode)
340
mapping.import_unusual_file_modes(rev, unusual_modes)
342
basis_id = rev.parent_ids[0]
344
basis_id = NULL_REVISION
345
rev.inventory_sha1, inv = repo.add_inventory_by_delta(basis_id,
346
inv_delta, rev.revision_id, rev.parent_ids)
347
parent_invs_cache[rev.revision_id] = inv
348
repo.add_revision(rev.revision_id, rev)
349
if "verify" in debug.debug_flags:
350
new_unusual_modes = mapping.export_unusual_file_modes(rev)
351
if new_unusual_modes != unusual_modes:
352
raise AssertionError("unusual modes don't match: %r != %r" % (unusual_modes, new_unusual_modes))
353
objs = inventory_to_tree_and_blobs(inv, repo.texts, mapping, unusual_modes)
354
for sha1, newobj, path in objs:
355
assert path is not None
356
oldobj = tree_lookup_path(lookup_object, root_trees[revid], path)
358
raise AssertionError("%r != %r in %s" % (oldobj, newobj, path))
360
target_git_object_retriever._idmap.commit()
438
target_git_object_retriever.commit_write_group()
439
return pack_hints, last_imported
363
442
class InterGitRepository(InterRepository):
401
480
ret = [mapping.revision_id_bzr_to_foreign(revid)[0] for revid in interesting_heads if revid not in (None, NULL_REVISION)]
402
481
return [rev for rev in ret if not self.target.has_revision(mapping.revision_id_foreign_to_bzr(rev))]
403
self.fetch_objects(determine_wants, mapping, pb)
482
(pack_hint, _) = self.fetch_objects(determine_wants, mapping, pb)
483
if pack_hint is not None and self.target._format.pack_compresses:
484
self.target.pack(hint=pack_hint)
485
if interesting_heads is not None:
486
present_interesting_heads = self.target.has_revisions(interesting_heads)
487
missing_interesting_heads = set(interesting_heads) - present_interesting_heads
488
if missing_interesting_heads:
489
raise AssertionError("Missing interesting heads: %r" % missing_interesting_heads)
404
490
return self._refs
493
_GIT_PROGRESS_RE = re.compile(r"(.*?): +(\d+)% \((\d+)/(\d+)\)")
494
def report_git_progress(pb, text):
495
text = text.rstrip("\r\n")
496
g = _GIT_PROGRESS_RE.match(text)
498
(text, pct, current, total) = g.groups()
499
pb.update(text, int(current), int(total))
501
pb.update(text, 0, 0)
407
504
class InterRemoteGitNonGitRepository(InterGitNonGitRepository):
408
"""InterRepository that copies revisions from a remote Git into a non-Git
505
"""InterRepository that copies revisions from a remote Git into a non-Git
411
def fetch_objects(self, determine_wants, mapping, pb=None):
508
def get_target_heads(self):
509
# FIXME: This should be more efficient
510
all_revs = self.target.all_revision_ids()
511
parent_map = self.target.get_parent_map(all_revs)
513
map(all_parents.update, parent_map.itervalues())
514
return set(all_revs) - all_parents
516
def fetch_objects(self, determine_wants, mapping, pb=None, limit=None):
412
517
def progress(text):
413
pb.update("git: %s" % text.rstrip("\r\n"), 0, 0)
518
report_git_progress(pb, text)
414
519
store = BazaarObjectStore(self.target, mapping)
415
520
self.target.lock_write()
417
heads = self.target.get_graph().heads(self.target.all_revision_ids())
522
heads = self.get_target_heads()
418
523
graph_walker = store.get_graph_walker(
419
524
[store._lookup_revision_sha1(head) for head in heads])
420
525
recorded_wants = []