179
def import_git_submodule(texts, mapping, path, name, (base_hexsha, hexsha),
180
base_inv, parent_id, revision_id, parent_invs, lookup_object,
181
(base_mode, mode), store_updater, lookup_file_id):
182
if base_hexsha == hexsha and base_mode == mode:
184
file_id = lookup_file_id(path)
185
ie = TreeReference(file_id, name.decode("utf-8"), parent_id)
177
def import_git_submodule(texts, mapping, path, hexsha, base_inv, base_ie,
178
parent_id, revision_id, parent_invs, lookup_object):
179
file_id = mapping.generate_file_id(path)
180
ie = TreeReference(file_id, urlutils.basename(path.decode("utf-8")),
186
182
ie.revision = revision_id
187
if base_hexsha is None:
187
if (base_ie.kind == ie.kind and
188
base_ie.reference_revision == ie.reference_revision):
189
ie.revision = base_ie.revision
191
190
ie.reference_revision = mapping.revision_id_foreign_to_bzr(hexsha)
192
texts.insert_record_stream([
193
ChunkedContentFactory((file_id, ie.revision), (), None, [])])
191
texts.insert_record_stream([FulltextContentFactory((file_id, ie.revision), (), None, "")])
194
192
invdelta = [(oldpath, path, file_id, ie)]
198
def remove_disappeared_children(base_inv, path, base_tree, existing_children,
200
"""Generate an inventory delta for removed children.
202
:param base_inv: Base inventory against which to generate the
204
:param path: Path to process (unicode)
205
:param base_tree: Git Tree base object
206
:param existing_children: Children that still exist
207
:param lookup_object: Lookup a git object by its SHA1
208
:return: Inventory delta, as list
210
assert type(path) is unicode
193
return invdelta, {}, {}
196
def remove_disappeared_children(path, base_children, existing_children):
212
for name, mode, hexsha in base_tree.iteritems():
213
if name in existing_children:
215
c_path = posixpath.join(path, name.decode("utf-8"))
216
file_id = base_inv.path2id(c_path)
217
assert file_id is not None
218
ret.append((c_path, None, file_id, None))
219
if stat.S_ISDIR(mode):
220
ret.extend(remove_disappeared_children(
221
base_inv, c_path, lookup_object(hexsha), [], lookup_object))
198
deletable = [(osutils.pathjoin(path, k), v) for k,v in base_children.iteritems() if k not in existing_children]
200
(path, ie) = deletable.pop()
201
ret.append((path, None, ie.file_id, None))
202
if ie.kind == "directory":
203
for name, child_ie in ie.children.iteritems():
204
deletable.append((osutils.pathjoin(path, name), child_ie))
225
def import_git_tree(texts, mapping, path, name, (base_hexsha, hexsha),
226
base_inv, parent_id, revision_id, parent_invs,
227
lookup_object, (base_mode, mode), store_updater,
228
lookup_file_id, allow_submodules=False):
208
def import_git_tree(texts, mapping, path, hexsha, base_inv, base_inv_shamap,
209
base_ie, parent_id, revision_id, parent_invs, lookup_object,
210
allow_submodules=False):
229
211
"""Import a git tree object into a bzr repository.
231
213
:param texts: VersionedFiles object to add to
232
:param path: Path in the tree (str)
233
:param name: Name of the tree (str)
214
:param path: Path in the tree
234
215
:param tree: A git tree object
235
216
:param base_inv: Base inventory against which to return inventory delta
236
217
:return: Inventory delta for this subtree
238
assert type(path) is str
239
assert type(name) is str
240
if base_hexsha == hexsha and base_mode == mode:
241
# If nothing has changed since the base revision, we're done
244
file_id = lookup_file_id(path)
220
file_id = mapping.generate_file_id(path)
245
221
# We just have to hope this is indeed utf-8:
246
ie = InventoryDirectory(file_id, name.decode("utf-8"), parent_id)
247
tree = lookup_object(hexsha)
248
if base_hexsha is None:
250
old_path = None # Newly appeared here
252
base_tree = lookup_object(base_hexsha)
253
old_path = path.decode("utf-8") # Renames aren't supported yet
254
new_path = path.decode("utf-8")
255
if base_tree is None or type(base_tree) is not Tree:
222
ie = InventoryDirectory(file_id, urlutils.basename(path.decode("utf-8")),
225
# Newly appeared here
256
226
ie.revision = revision_id
257
invdelta.append((old_path, new_path, ie.file_id, ie))
258
texts.insert_record_stream([
259
ChunkedContentFactory((ie.file_id, ie.revision), (), None, [])])
227
texts.insert_record_stream([FulltextContentFactory((file_id, ie.revision), (), None, "")])
228
invdelta.append((None, path, file_id, ie))
230
# See if this has changed at all
232
base_sha = base_inv_shamap.lookup_tree(file_id)
233
except (KeyError, NotImplementedError):
236
if base_sha == hexsha:
237
# If nothing has changed since the base revision, we're done
239
if base_ie.kind != "directory":
240
ie.revision = revision_id
241
texts.insert_record_stream([FulltextContentFactory((ie.file_id, ie.revision), (), None, "")])
242
invdelta.append((base_inv.id2path(ie.file_id), path, ie.file_id, ie))
243
if base_ie is not None and base_ie.kind == "directory":
244
base_children = base_ie.children
260
247
# Remember for next time
261
248
existing_children = set()
263
for child_mode, name, child_hexsha in tree.entries():
264
existing_children.add(name)
265
child_path = posixpath.join(path, name)
266
if type(base_tree) is Tree:
268
child_base_mode, child_base_hexsha = base_tree[name]
270
child_base_hexsha = None
273
child_base_hexsha = None
275
if stat.S_ISDIR(child_mode):
276
subinvdelta, grandchildmodes = import_git_tree(texts, mapping,
277
child_path, name, (child_base_hexsha, child_hexsha), base_inv,
278
file_id, revision_id, parent_invs, lookup_object,
279
(child_base_mode, child_mode), store_updater, lookup_file_id,
280
allow_submodules=allow_submodules)
281
elif S_ISGITLINK(child_mode): # submodule
251
tree = lookup_object(hexsha)
252
for mode, name, child_hexsha in tree.entries():
253
basename = name.decode("utf-8")
254
existing_children.add(basename)
255
child_path = osutils.pathjoin(path, name)
256
if stat.S_ISDIR(mode):
257
subinvdelta, grandchildmodes, subshamap = import_git_tree(
258
texts, mapping, child_path, child_hexsha, base_inv,
259
base_inv_shamap, base_children.get(basename), file_id,
260
revision_id, parent_invs, lookup_object,
261
allow_submodules=allow_submodules)
262
elif S_ISGITLINK(mode): # submodule
282
263
if not allow_submodules:
283
264
raise SubmodulesRequireSubtrees()
284
subinvdelta, grandchildmodes = import_git_submodule(texts, mapping,
285
child_path, name, (child_base_hexsha, child_hexsha), base_inv,
286
file_id, revision_id, parent_invs, lookup_object,
287
(child_base_mode, child_mode), store_updater, lookup_file_id)
265
subinvdelta, grandchildmodes, subshamap = import_git_submodule(
266
texts, mapping, child_path, child_hexsha, base_inv, base_children.get(basename),
267
file_id, revision_id, parent_invs, lookup_object)
289
subinvdelta = import_git_blob(texts, mapping, child_path, name,
290
(child_base_hexsha, child_hexsha), base_inv, file_id,
291
revision_id, parent_invs, lookup_object,
292
(child_base_mode, child_mode), store_updater, lookup_file_id)
269
subinvdelta, subshamap = import_git_blob(texts, mapping,
270
child_path, child_hexsha, base_inv, base_inv_shamap,
271
base_children.get(basename), file_id,
272
revision_id, parent_invs, lookup_object,
273
mode_is_executable(mode), stat.S_ISLNK(mode))
293
274
grandchildmodes = {}
294
275
child_modes.update(grandchildmodes)
295
276
invdelta.extend(subinvdelta)
296
if child_mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
277
shamap.update(subshamap)
278
if mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
297
279
stat.S_IFLNK, DEFAULT_FILE_MODE|0111):
298
child_modes[child_path] = child_mode
280
child_modes[child_path] = mode
299
281
# Remove any children that have disappeared
300
if base_tree is not None and type(base_tree) is Tree:
301
invdelta.extend(remove_disappeared_children(base_inv, old_path,
302
base_tree, existing_children, lookup_object))
303
store_updater.add_object(tree, ie, path)
304
return invdelta, child_modes
307
def verify_commit_reconstruction(target_git_object_retriever, lookup_object,
308
o, rev, ret_tree, parent_trees, mapping, unusual_modes):
309
new_unusual_modes = mapping.export_unusual_file_modes(rev)
310
if new_unusual_modes != unusual_modes:
311
raise AssertionError("unusual modes don't match: %r != %r" % (
312
unusual_modes, new_unusual_modes))
313
# Verify that we can reconstruct the commit properly
314
rec_o = target_git_object_retriever._reconstruct_commit(rev, o.tree, True)
316
raise AssertionError("Reconstructed commit differs: %r != %r" % (
320
for path, obj, ie in _tree_to_objects(ret_tree, parent_trees,
321
target_git_object_retriever._cache.idmap, unusual_modes, mapping.BZR_DUMMY_FILE):
322
old_obj_id = tree_lookup_path(lookup_object, o.tree, path)[1]
324
if obj.id != old_obj_id:
325
diff.append((path, lookup_object(old_obj_id), obj))
326
for (path, old_obj, new_obj) in diff:
327
while (old_obj.type_name == "tree" and
328
new_obj.type_name == "tree" and
329
sorted(old_obj) == sorted(new_obj)):
331
if old_obj[name][0] != new_obj[name][0]:
332
raise AssertionError("Modes for %s differ: %o != %o" %
333
(path, old_obj[name][0], new_obj[name][0]))
334
if old_obj[name][1] != new_obj[name][1]:
335
# Found a differing child, delve deeper
336
path = posixpath.join(path, name)
337
old_obj = lookup_object(old_obj[name][1])
338
new_obj = new_objs[path]
340
raise AssertionError("objects differ for %s: %r != %r" % (path,
282
if base_ie is not None and base_ie.kind == "directory":
283
invdelta.extend(remove_disappeared_children(base_inv.id2path(file_id),
284
base_children, existing_children))
285
shamap[file_id] = hexsha
286
return invdelta, child_modes, shamap
289
def approx_inv_size(inv):
290
# Very rough estimate, 1k per inventory entry
291
return len(inv) * 1024
344
294
def import_git_commit(repo, mapping, head, lookup_object,
345
target_git_object_retriever, trees_cache):
295
target_git_object_retriever, parent_invs_cache):
346
296
o = lookup_object(head)
347
rev, roundtrip_revid, verifiers = mapping.import_commit(o,
348
lambda x: target_git_object_retriever.lookup_git_sha(x)[1][0])
297
rev = mapping.import_commit(o)
349
298
# We have to do this here, since we have to walk the tree and
350
299
# we need to make sure to import the blobs / trees with the right
351
300
# path; this may involve adding them more than once.
352
parent_trees = trees_cache.revision_trees(rev.parent_ids)
353
if parent_trees == []:
302
for parent_id in rev.parent_ids:
304
parent_invs.append(parent_invs_cache[parent_id])
306
parent_inv = repo.get_inventory(parent_id)
307
parent_invs.append(parent_inv)
308
parent_invs_cache[parent_id] = parent_inv
309
if parent_invs == []:
354
310
base_inv = Inventory(root_id=None)
312
base_inv_shamap = None # Should never be accessed
358
base_inv = parent_trees[0].inventory
359
base_tree = lookup_object(o.parents[0]).tree
360
base_mode = stat.S_IFDIR
361
store_updater = target_git_object_retriever._get_updater(rev)
362
fileid_map = mapping.get_fileid_map(lookup_object, o.tree)
363
inv_delta, unusual_modes = import_git_tree(repo.texts,
364
mapping, "", "", (base_tree, o.tree), base_inv,
365
None, rev.revision_id, [p.inventory for p in parent_trees],
366
lookup_object, (base_mode, stat.S_IFDIR), store_updater,
367
fileid_map.lookup_file_id,
314
base_inv = parent_invs[0]
315
base_ie = base_inv.root
316
base_inv_shamap = target_git_object_retriever._idmap.get_inventory_sha_map(base_inv.revision_id)
317
inv_delta, unusual_modes, shamap = import_git_tree(repo.texts,
318
mapping, "", o.tree, base_inv, base_inv_shamap, base_ie, None,
319
rev.revision_id, parent_invs, lookup_object,
368
320
allow_submodules=getattr(repo._format, "supports_tree_reference", False))
322
for (oldpath, newpath, fileid, new_ie) in inv_delta:
324
entries.append((fileid, None, None, None))
326
if new_ie.kind in ("file", "symlink"):
327
entries.append((fileid, "blob", shamap[fileid], new_ie.revision))
328
elif new_ie.kind == "directory":
329
entries.append((fileid, "tree", shamap[fileid], rev.revision_id))
332
target_git_object_retriever._idmap.add_entries(rev.revision_id,
333
rev.parent_ids, head, o.tree, entries)
369
334
if unusual_modes != {}:
370
335
for path, mode in unusual_modes.iteritems():
371
336
warn_unusual_mode(rev.foreign_revid, path, mode)