124
def import_git_blob(texts, mapping, path, hexsha, base_inv, parent_id,
125
revision_id, parent_invs, shagitmap, lookup_object, executable, symlink):
77
def import_git_blob(repo, mapping, path, blob, inv, parent_invs, executable):
126
78
"""Import a git blob object into a bzr repository.
128
:param texts: VersionedFiles to add to
80
:param repo: bzr repository
129
81
:param path: Path in the tree
130
82
:param blob: A git blob
131
:return: Inventory delta for this file
133
84
file_id = mapping.generate_file_id(path)
138
# We just have to hope this is indeed utf-8:
139
ie = cls(file_id, urlutils.basename(path).decode("utf-8"), parent_id)
85
text_revision = inv.revision_id
86
repo.texts.add_lines((file_id, text_revision),
87
[(file_id, p[file_id].revision) for p in parent_invs if file_id in p],
88
osutils.split_lines(blob.data))
89
ie = inv.add_path(path, "file", file_id)
90
ie.revision = text_revision
91
ie.text_size = len(blob.data)
92
ie.text_sha1 = osutils.sha_string(blob.data)
140
93
ie.executable = executable
142
# See if this has changed at all
144
base_ie = base_inv[file_id]
149
base_sha = base_ie.text_id
152
base_sha = shagitmap.lookup_blob(file_id, base_ie.revision)
156
if (base_sha == hexsha and base_ie.executable == ie.executable
157
and base_ie.kind == ie.kind):
158
# If nothing has changed since the base revision, we're done
160
if base_sha == hexsha:
161
ie.text_size = base_ie.text_size
162
ie.text_sha1 = base_ie.text_sha1
163
ie.symlink_target = base_ie.symlink_target
164
ie.revision = base_ie.revision
166
blob = lookup_object(hexsha)
167
if ie.kind == "symlink":
168
ie.symlink_target = blob.data
172
ie.text_size = len(blob.data)
173
ie.text_sha1 = osutils.sha_string(blob.data)
174
# Check what revision we should store
176
for pinv in parent_invs:
177
if pinv.revision_id == base_inv.revision_id:
186
if pie.text_sha1 == ie.text_sha1:
187
# found a revision in one of the parents to use
188
ie.revision = pie.revision
190
parent_keys.append((file_id, pie.revision))
191
if ie.revision is None:
192
# Need to store a new revision
193
ie.revision = revision_id
194
assert file_id is not None
195
assert ie.revision is not None
196
texts.insert_record_stream([FulltextContentFactory((file_id, ie.revision), tuple(parent_keys), ie.text_sha1, blob.data)])
197
shamap = [(hexsha, "blob", (ie.file_id, ie.revision))]
200
if file_id in base_inv:
201
old_path = base_inv.id2path(file_id)
204
return ([(old_path, path, file_id, ie)], shamap)
207
def import_git_tree(texts, mapping, path, hexsha, base_inv, parent_id,
208
revision_id, parent_invs, shagitmap, lookup_object):
96
def import_git_tree(repo, mapping, path, tree, inv, parent_invs, lookup_object):
209
97
"""Import a git tree object into a bzr repository.
211
:param texts: VersionedFiles object to add to
99
:param repo: A Bzr repository object
212
100
:param path: Path in the tree
213
101
:param tree: A git tree object
214
:param base_inv: Base inventory against which to return inventory delta
215
:return: Inventory delta for this subtree
102
:param inv: Inventory object
218
104
file_id = mapping.generate_file_id(path)
219
# We just have to hope this is indeed utf-8:
220
ie = InventoryDirectory(file_id, urlutils.basename(path.decode("utf-8")),
224
base_ie = base_inv[file_id]
226
# Newly appeared here
228
ie.revision = revision_id
229
texts.add_lines((file_id, ie.revision), (), [])
230
invdelta.append((None, path, file_id, ie))
232
base_sha = base_ie.text_id
233
# See if this has changed at all
236
base_sha = shagitmap.lookup_tree(file_id, base_inv.revision_id)
240
if base_sha == hexsha:
241
# If nothing has changed since the base revision, we're done
243
# Remember for next time
244
existing_children = set()
247
tree = lookup_object(hexsha)
248
for mode, name, child_hexsha in tree.entries():
105
text_revision = inv.revision_id
106
repo.texts.add_lines((file_id, text_revision),
107
[(file_id, p[file_id].revision) for p in parent_invs if file_id in p],
109
ie = inv.add_path(path, "directory", file_id)
110
ie.revision = text_revision
111
for mode, name, hexsha in tree.entries():
112
entry_kind = (mode & 0700000) / 0100000
249
113
basename = name.decode("utf-8")
250
existing_children.add(basename)
251
child_path = osutils.pathjoin(path, name)
252
if stat.S_ISDIR(mode):
253
subinvdelta, grandchildmodes, subshamap = import_git_tree(texts,
254
mapping, child_path, child_hexsha, base_inv, file_id,
255
revision_id, parent_invs, shagitmap, lookup_object)
256
invdelta.extend(subinvdelta)
257
child_modes.update(grandchildmodes)
258
shamap.extend(subshamap)
260
fs_mode = stat.S_IMODE(mode)
261
symlink = stat.S_ISLNK(mode)
262
subinvdelta, subshamap = import_git_blob(texts, mapping,
263
child_path, child_hexsha, base_inv, file_id, revision_id,
264
parent_invs, shagitmap, lookup_object,
265
bool(fs_mode & 0111), symlink)
266
invdelta.extend(subinvdelta)
267
shamap.extend(subshamap)
268
if mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
269
stat.S_IFLNK, DEFAULT_FILE_MODE|0111):
270
child_modes[child_path] = mode
271
# Remove any children that have disappeared
272
if base_ie is not None:
273
deletable = [v for k,v in base_ie.children.iteritems() if k not in existing_children]
276
invdelta.append((base_inv.id2path(ie.file_id), None, ie.file_id, None))
277
if ie.kind == "directory":
278
deletable.extend(ie.children.values())
279
shamap.append((hexsha, "tree", (file_id, revision_id)))
280
return invdelta, child_modes, shamap
283
def import_git_objects(repo, mapping, object_iter, target_git_object_retriever,
117
child_path = urlutils.join(path, name)
119
tree = lookup_object(hexsha)
120
import_git_tree(repo, mapping, child_path, tree, inv, parent_invs, lookup_object)
121
elif entry_kind == 1:
122
blob = lookup_object(hexsha)
123
fs_mode = mode & 0777
124
import_git_blob(repo, mapping, child_path, blob, inv, parent_invs, bool(fs_mode & 0111))
126
raise AssertionError("Unknown blob kind, perms=%r." % (mode,))
129
def import_git_objects(repo, mapping, num_objects, object_iter, pb=None):
285
130
"""Import a set of git objects into a bzr repository.
287
132
:param repo: Bazaar repository
288
133
:param mapping: Mapping to use
134
:param num_objects: Number of objects.
289
135
:param object_iter: Iterator over Git objects.
291
137
# TODO: a more (memory-)efficient implementation of this
139
for i, (o, _) in enumerate(object_iter):
141
pb.update("fetching objects", i, num_objects)
297
parent_invs_cache = LRUCache(50)
298
146
# Find and convert commit objects
301
pb.update("finding revisions to fetch", len(graph), None)
303
assert isinstance(head, str)
305
o = object_iter[head]
147
for o in objects.itervalues():
308
148
if isinstance(o, Commit):
309
149
rev = mapping.import_commit(o)
310
if repo.has_revision(rev.revision_id):
312
root_trees[rev.revision_id] = o.tree
150
root_trees[rev.revision_id] = objects[o.tree]
313
151
revisions[rev.revision_id] = rev
314
152
graph.append((rev.revision_id, rev.parent_ids))
315
target_git_object_retriever._idmap.add_entry(o.id, "commit",
316
(rev.revision_id, o.tree))
317
heads.extend([p for p in o.parents if p not in checked])
318
elif isinstance(o, Tag):
319
heads.append(o.object[1])
321
trace.warning("Unable to import head object %r" % o)
323
153
# Order the revisions
324
154
# Create the inventory objects
325
155
for i, revid in enumerate(topo_sort(graph)):
326
156
if pb is not None:
327
157
pb.update("fetching revisions", i, len(graph))
158
root_tree = root_trees[revid]
328
159
rev = revisions[revid]
329
160
# We have to do this here, since we have to walk the tree and
330
# we need to make sure to import the blobs / trees with the right
161
# we need to make sure to import the blobs / trees with the riht
331
162
# path; this may involve adding them more than once.
164
inv.revision_id = rev.revision_id
332
165
def lookup_object(sha):
334
return object_iter[sha]
336
return target_git_object_retriever[sha]
338
for parent_id in rev.parent_ids:
340
parent_invs.append(parent_invs_cache[parent_id])
342
parent_inv = repo.get_inventory(parent_id)
343
parent_invs.append(parent_inv)
344
parent_invs_cache[parent_id] = parent_inv
345
if parent_invs == []:
346
base_inv = Inventory(root_id=None)
348
base_inv = parent_invs[0]
349
inv_delta, unusual_modes, shamap = import_git_tree(repo.texts,
350
mapping, "", root_trees[revid], base_inv, None, revid,
351
parent_invs, target_git_object_retriever._idmap, lookup_object)
352
target_git_object_retriever._idmap.add_entries(shamap)
353
if unusual_modes != {}:
354
ret = "unusual modes: \n"
355
for item in unusual_modes.iteritems():
356
ret += "\t%s: %o\n" % item
357
raise AssertionError(ret)
359
basis_id = rev.parent_ids[0]
361
basis_id = NULL_REVISION
362
rev.inventory_sha1, inv = repo.add_inventory_by_delta(basis_id,
363
inv_delta, rev.revision_id, rev.parent_ids)
364
parent_invs_cache[rev.revision_id] = inv
365
repo.add_revision(rev.revision_id, rev)
366
if "verify" in debug.debug_flags:
367
objs = inventory_to_tree_and_blobs(inv, repo.texts, mapping)
368
for sha1, newobj, path in objs:
369
assert path is not None
370
oldobj = tree_lookup_path(lookup_object, root_trees[revid], path)
371
assert oldobj == newobj, "%r != %r in %s" % (oldobj, newobj, path)
373
target_git_object_retriever._idmap.commit()
376
class InterGitRepository(InterRepository):
378
_matching_repo_format = GitRepositoryFormat()
168
return reconstruct_git_object(repo, mapping, sha)
169
parent_invs = [repo.get_inventory(r) for r in rev.parent_ids]
170
import_git_tree(repo, mapping, "", root_tree, inv, parent_invs,
172
repo.add_revision(rev.revision_id, rev, inv)
175
def reconstruct_git_commit(repo, rev):
176
raise NotImplementedError(self.reconstruct_git_commit)
179
def reconstruct_git_object(repo, mapping, sha):
181
revid = mapping.revision_id_foreign_to_bzr(sha)
183
rev = repo.get_revision(revid)
184
except NoSuchRevision:
187
return reconstruct_git_commit(rev)
191
raise KeyError("No such object %s" % sha)
194
class InterGitNonGitRepository(InterRepository):
196
_matching_repo_format = GitFormat()
381
199
def _get_repo_format_to_test():
385
203
"""See InterRepository.copy_content."""
386
204
self.fetch(revision_id, pb, find_ghosts=False)
388
def fetch(self, revision_id=None, pb=None, find_ghosts=False, mapping=None,
390
self.fetch_refs(revision_id=revision_id, pb=pb, find_ghosts=find_ghosts,
391
mapping=mapping, fetch_spec=fetch_spec)
394
class InterGitNonGitRepository(InterGitRepository):
395
"""Base InterRepository that copies revisions from a Git into a non-Git
398
def fetch_refs(self, revision_id=None, pb=None, find_ghosts=False,
399
mapping=None, fetch_spec=None):
206
def fetch(self, revision_id=None, pb=None, find_ghosts=False,
400
208
if mapping is None:
401
209
mapping = self.source.get_mapping()
402
if revision_id is not None:
403
interesting_heads = [revision_id]
404
elif fetch_spec is not None:
405
interesting_heads = fetch_spec.heads
407
interesting_heads = None
409
def determine_wants(refs):
411
if interesting_heads is None:
412
ret = [sha for (ref, sha) in refs.iteritems() if not ref.endswith("^{}")]
211
pb.update("git: %s" % text.rstrip("\r\n"), 0, 0)
212
def determine_wants(heads):
213
if revision_id is None:
414
ret = [mapping.revision_id_bzr_to_foreign(revid)[0] for revid in interesting_heads if revid != NULL_REVISION]
216
ret = [mapping.revision_id_bzr_to_foreign(revision_id)[0]]
415
217
return [rev for rev in ret if not self.target.has_revision(mapping.revision_id_foreign_to_bzr(rev))]
416
self.fetch_objects(determine_wants, mapping, pb)
421
class InterRemoteGitNonGitRepository(InterGitNonGitRepository):
422
"""InterRepository that copies revisions from a remote Git into a non-Git
425
def fetch_objects(self, determine_wants, mapping, pb=None):
427
pb.update("git: %s" % text.rstrip("\r\n"), 0, 0)
428
218
graph_walker = BzrFetchGraphWalker(self.target, mapping)
431
221
create_pb = pb = ui.ui_factory.nested_progress_bar()
432
target_git_object_retriever = BazaarObjectStore(self.target, mapping)
435
def record_determine_wants(heads):
436
wants = determine_wants(heads)
437
recorded_wants.extend(wants)
441
self.target.lock_write()
443
self.target.start_write_group()
445
objects_iter = self.source.fetch_objects(
446
record_determine_wants,
448
target_git_object_retriever.get_raw,
450
import_git_objects(self.target, mapping, objects_iter,
451
target_git_object_retriever, recorded_wants, pb)
453
self.target.commit_write_group()
461
def is_compatible(source, target):
462
"""Be compatible with GitRepository."""
463
# FIXME: Also check target uses VersionedFile
464
return (isinstance(source, RemoteGitRepository) and
465
target.supports_rich_root() and
466
not isinstance(target, GitRepository))
469
class InterLocalGitNonGitRepository(InterGitNonGitRepository):
470
"""InterRepository that copies revisions from a remote Git into a non-Git
473
def fetch_objects(self, determine_wants, mapping, pb=None):
474
wants = determine_wants(self.source._git.get_refs())
477
create_pb = pb = ui.ui_factory.nested_progress_bar()
478
target_git_object_retriever = BazaarObjectStore(self.target, mapping)
480
self.target.lock_write()
482
self.target.start_write_group()
484
import_git_objects(self.target, mapping,
485
self.source._git.object_store,
486
target_git_object_retriever, wants, pb)
488
self.target.commit_write_group()
496
def is_compatible(source, target):
497
"""Be compatible with GitRepository."""
498
# FIXME: Also check target uses VersionedFile
499
return (isinstance(source, LocalGitRepository) and
500
target.supports_rich_root() and
501
not isinstance(target, GitRepository))
504
class InterGitGitRepository(InterGitRepository):
505
"""InterRepository that copies between Git repositories."""
507
def fetch_refs(self, revision_id=None, pb=None, find_ghosts=False,
508
mapping=None, fetch_spec=None, branches=None):
223
self.target.lock_write()
225
self.target.start_write_group()
227
(num_objects, objects_iter) = \
228
self.source.fetch_objects(determine_wants,
229
graph_walker, progress)
230
import_git_objects(self.target, mapping, num_objects,
233
self.target.commit_write_group()
241
def is_compatible(source, target):
242
"""Be compatible with GitRepository."""
243
# FIXME: Also check target uses VersionedFile
244
return (isinstance(source, GitRepository) and
245
target.supports_rich_root() and
246
not isinstance(target, GitRepository))
249
class InterGitRepository(InterRepository):
251
_matching_repo_format = GitFormat()
254
def _get_repo_format_to_test():
257
def copy_content(self, revision_id=None, pb=None):
258
"""See InterRepository.copy_content."""
259
self.fetch(revision_id, pb, find_ghosts=False)
261
def fetch(self, revision_id=None, pb=None, find_ghosts=False,
509
263
if mapping is None:
510
264
mapping = self.source.get_mapping()
511
265
def progress(text):
512
trace.info("git: %s", text)
266
info("git: %s", text)
513
267
r = self.target._git
514
if revision_id is not None:
268
if revision_id is None:
269
determine_wants = lambda x: [y for y in x.values() if not y in r.object_store]
515
271
args = [mapping.revision_id_bzr_to_foreign(revision_id)[0]]
516
elif fetch_spec is not None:
517
args = [mapping.revision_id_bzr_to_foreign(revid)[0] for revid in fetch_spec.heads]
518
if branches is not None:
519
determine_wants = lambda x: [x[y] for y in branches if not x[y] in r.object_store]
520
elif fetch_spec is None and revision_id is None:
521
determine_wants = r.object_store.determine_wants_all
523
272
determine_wants = lambda x: [y for y in args if not y in r.object_store]
525
274
graphwalker = SimpleFetchGraphWalker(r.heads().values(), r.get_parents)
526
f, commit = r.object_store.add_thin_pack()
275
f, commit = r.object_store.add_pack()
528
refs = self.source.fetch_pack(determine_wants, graphwalker,
277
self.source._git.fetch_pack(path, determine_wants, graphwalker, f.write, progress)