59
60
from bzrlib.versionedfile import (
60
ChunkedContentFactory,
61
FulltextContentFactory,
63
64
from bzrlib.plugins.git.mapping import (
65
66
inventory_to_tree_and_blobs,
71
69
from bzrlib.plugins.git.object_store import (
75
72
from bzrlib.plugins.git.remote import (
76
73
RemoteGitRepository,
78
75
from bzrlib.plugins.git.repository import (
80
77
GitRepositoryFormat,
81
78
LocalGitRepository,
85
def import_git_blob(texts, mapping, path, name, (base_hexsha, hexsha),
86
base_inv, parent_id, revision_id,
87
parent_invs, lookup_object, (base_mode, mode), store_updater):
82
class BzrFetchGraphWalker(object):
83
"""GraphWalker implementation that uses a Bazaar repository."""
85
def __init__(self, repository, mapping):
86
self.repository = repository
87
self.mapping = mapping
89
self.heads = set(repository.all_revision_ids())
93
return iter(self.next, None)
96
revid = self.mapping.revision_id_foreign_to_bzr(sha)
99
def remove(self, revid):
101
if revid in self.heads:
102
self.heads.remove(revid)
103
if revid in self.parents:
104
for p in self.parents[revid]:
109
ret = self.heads.pop()
110
ps = self.repository.get_parent_map([ret])[ret]
111
self.parents[ret] = ps
112
self.heads.update([p for p in ps if not p in self.done])
115
return self.mapping.revision_id_bzr_to_foreign(ret)[0]
116
except InvalidRevisionId:
121
def import_git_blob(texts, mapping, path, hexsha, base_inv, parent_id,
122
revision_id, parent_invs, shagitmap, lookup_object, executable, symlink):
88
123
"""Import a git blob object into a bzr repository.
90
125
:param texts: VersionedFiles to add to
92
127
:param blob: A git blob
93
128
:return: Inventory delta for this file
95
if base_hexsha == hexsha and base_mode == mode:
96
# If nothing has changed since the base revision, we're done
98
130
file_id = mapping.generate_file_id(path)
99
if stat.S_ISLNK(mode):
100
132
cls = InventoryLink
102
134
cls = InventoryFile
103
ie = cls(file_id, name.decode("utf-8"), parent_id)
104
ie.executable = mode_is_executable(mode)
105
if base_hexsha == hexsha and mode_kind(base_mode) == mode_kind(mode):
106
base_ie = base_inv[base_inv.path2id(path)]
135
# We just have to hope this is indeed utf-8:
136
ie = cls(file_id, urlutils.basename(path).decode("utf-8"), parent_id)
137
ie.executable = executable
139
# See if this has changed at all
141
base_ie = base_inv[file_id]
146
base_sha = base_ie.text_id
149
base_sha = shagitmap.lookup_blob(file_id, base_ie.revision)
153
if (base_sha == hexsha and base_ie.executable == ie.executable
154
and base_ie.kind == ie.kind):
155
# If nothing has changed since the base revision, we're done
157
if base_sha == hexsha:
107
158
ie.text_size = base_ie.text_size
108
159
ie.text_sha1 = base_ie.text_sha1
109
160
ie.symlink_target = base_ie.symlink_target
110
if ie.executable == base_ie.executable:
111
ie.revision = base_ie.revision
113
blob = lookup_object(hexsha)
161
ie.revision = base_ie.revision
115
163
blob = lookup_object(hexsha)
116
164
if ie.kind == "symlink":
118
165
ie.symlink_target = blob.data
119
166
ie.text_size = None
120
167
ie.text_sha1 = None
122
ie.text_size = sum(imap(len, blob.chunked))
123
ie.text_sha1 = osutils.sha_strings(blob.chunked)
169
ie.text_size = len(blob.data)
170
ie.text_sha1 = osutils.sha_string(blob.data)
124
171
# Check what revision we should store
126
for pinv in parent_invs[1:]:
131
if pie.text_sha1 == ie.text_sha1 and pie.executable == ie.executable and pie.symlink_target == ie.symlink_target:
173
for pinv in parent_invs:
174
if pinv.revision_id == base_inv.revision_id:
183
if pie.text_sha1 == ie.text_sha1:
132
184
# found a revision in one of the parents to use
133
185
ie.revision = pie.revision
136
188
if ie.revision is None:
137
189
# Need to store a new revision
138
190
ie.revision = revision_id
191
assert file_id is not None
139
192
assert ie.revision is not None
140
if ie.kind == 'symlink':
143
chunks = blob.chunked
144
texts.insert_record_stream([ChunkedContentFactory((file_id, ie.revision), tuple(parent_keys), ie.text_sha1, chunks)])
146
if base_hexsha is not None:
147
old_path = path # Renames are not supported yet
148
if stat.S_ISDIR(base_mode):
149
invdelta.extend(remove_disappeared_children(base_inv, old_path,
150
lookup_object(base_hexsha), [], lookup_object))
193
texts.insert_record_stream([FulltextContentFactory((file_id, ie.revision), tuple(parent_keys), ie.text_sha1, blob.data)])
194
shamap = [(hexsha, "blob", (ie.file_id, ie.revision))]
197
if file_id in base_inv:
198
old_path = base_inv.id2path(file_id)
153
invdelta.append((old_path, path, file_id, ie))
154
if base_hexsha != hexsha:
155
store_updater.add_object(blob, ie)
159
class SubmodulesRequireSubtrees(BzrError):
160
_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'."""
164
def import_git_submodule(texts, mapping, path, name, (base_hexsha, hexsha),
165
base_inv, parent_id, revision_id, parent_invs, lookup_object,
166
(base_mode, mode), store_updater):
167
if base_hexsha == hexsha and base_mode == mode:
169
file_id = mapping.generate_file_id(path)
170
ie = TreeReference(file_id, name.decode("utf-8"), parent_id)
171
ie.revision = revision_id
172
if base_hexsha is None:
176
ie.reference_revision = mapping.revision_id_foreign_to_bzr(hexsha)
177
texts.insert_record_stream([ChunkedContentFactory((file_id, ie.revision), (), None, [])])
178
invdelta = [(oldpath, path, file_id, ie)]
182
def remove_disappeared_children(base_inv, path, base_tree, existing_children,
185
for name, mode, hexsha in base_tree.iteritems():
186
if name in existing_children:
188
c_path = posixpath.join(path, name.decode("utf-8"))
189
ret.append((c_path, None, base_inv.path2id(c_path), None))
190
if stat.S_ISDIR(mode):
191
ret.extend(remove_disappeared_children(
192
base_inv, c_path, lookup_object(hexsha), [], lookup_object))
196
def import_git_tree(texts, mapping, path, name, (base_hexsha, hexsha),
197
base_inv, parent_id, revision_id, parent_invs,
198
lookup_object, (base_mode, mode), store_updater, allow_submodules=False):
201
return ([(old_path, path, file_id, ie)], shamap)
204
def import_git_tree(texts, mapping, path, hexsha, base_inv, parent_id,
205
revision_id, parent_invs, shagitmap, lookup_object):
199
206
"""Import a git tree object into a bzr repository.
201
208
:param texts: VersionedFiles object to add to
204
211
:param base_inv: Base inventory against which to return inventory delta
205
212
:return: Inventory delta for this subtree
207
if base_hexsha == hexsha and base_mode == mode:
208
# If nothing has changed since the base revision, we're done
211
215
file_id = mapping.generate_file_id(path)
212
216
# We just have to hope this is indeed utf-8:
213
ie = InventoryDirectory(file_id, name.decode("utf-8"), parent_id)
214
tree = lookup_object(hexsha)
215
if base_hexsha is None:
217
old_path = None # Newly appeared here
217
ie = InventoryDirectory(file_id, urlutils.basename(path.decode("utf-8")),
221
base_ie = base_inv[file_id]
223
# Newly appeared here
225
ie.revision = revision_id
226
texts.add_lines((file_id, ie.revision), (), [])
227
invdelta.append((None, path, file_id, ie))
219
base_tree = lookup_object(base_hexsha)
220
old_path = path # Renames aren't supported yet
221
if base_tree is None or type(base_tree) is not Tree:
222
ie.revision = revision_id
223
invdelta.append((old_path, path, ie.file_id, ie))
224
texts.insert_record_stream([ChunkedContentFactory((ie.file_id, ie.revision), (), None, [])])
229
base_sha = base_ie.text_id
230
# See if this has changed at all
233
base_sha = shagitmap.lookup_tree(file_id, base_inv.revision_id)
237
if base_sha == hexsha:
238
# If nothing has changed since the base revision, we're done
225
240
# Remember for next time
226
241
existing_children = set()
228
for child_mode, name, child_hexsha in tree.entries():
229
existing_children.add(name)
230
child_path = posixpath.join(path, name)
231
if type(base_tree) is Tree:
233
child_base_mode, child_base_hexsha = base_tree[name]
235
child_base_hexsha = None
238
child_base_hexsha = None
240
if stat.S_ISDIR(child_mode):
241
subinvdelta, grandchildmodes = import_git_tree(
242
texts, mapping, child_path, name,
243
(child_base_hexsha, child_hexsha),
244
base_inv, file_id, revision_id, parent_invs, lookup_object,
245
(child_base_mode, child_mode), store_updater,
246
allow_submodules=allow_submodules)
247
elif S_ISGITLINK(child_mode): # submodule
248
if not allow_submodules:
249
raise SubmodulesRequireSubtrees()
250
subinvdelta, grandchildmodes = import_git_submodule(
251
texts, mapping, child_path, name,
252
(child_base_hexsha, child_hexsha),
253
base_inv, file_id, revision_id, parent_invs, lookup_object,
254
(child_base_mode, child_mode), store_updater)
256
subinvdelta = import_git_blob(texts, mapping,
257
child_path, name, (child_base_hexsha, child_hexsha),
258
base_inv, file_id, revision_id, parent_invs, lookup_object,
259
(child_base_mode, child_mode), store_updater)
261
child_modes.update(grandchildmodes)
262
invdelta.extend(subinvdelta)
263
if child_mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
244
tree = lookup_object(hexsha)
245
for mode, name, child_hexsha in tree.entries():
246
basename = name.decode("utf-8")
247
existing_children.add(basename)
248
child_path = osutils.pathjoin(path, name)
249
if stat.S_ISDIR(mode):
250
subinvdelta, grandchildmodes, subshamap = import_git_tree(texts,
251
mapping, child_path, child_hexsha, base_inv, file_id,
252
revision_id, parent_invs, shagitmap, lookup_object)
253
invdelta.extend(subinvdelta)
254
child_modes.update(grandchildmodes)
255
shamap.extend(subshamap)
257
fs_mode = stat.S_IMODE(mode)
258
symlink = stat.S_ISLNK(mode)
259
subinvdelta, subshamap = import_git_blob(texts, mapping,
260
child_path, child_hexsha, base_inv, file_id, revision_id,
261
parent_invs, shagitmap, lookup_object,
262
bool(fs_mode & 0111), symlink)
263
invdelta.extend(subinvdelta)
264
shamap.extend(subshamap)
265
if mode not in (stat.S_IFDIR, DEFAULT_FILE_MODE,
264
266
stat.S_IFLNK, DEFAULT_FILE_MODE|0111):
265
child_modes[child_path] = child_mode
267
child_modes[child_path] = mode
266
268
# Remove any children that have disappeared
267
if base_tree is not None and type(base_tree) is Tree:
268
invdelta.extend(remove_disappeared_children(base_inv, old_path,
269
base_tree, existing_children, lookup_object))
270
store_updater.add_object(tree, ie)
271
return invdelta, child_modes
274
def import_git_commit(repo, mapping, head, lookup_object,
275
target_git_object_retriever, parent_invs_cache):
276
o = lookup_object(head)
277
rev = mapping.import_commit(o)
278
# We have to do this here, since we have to walk the tree and
279
# we need to make sure to import the blobs / trees with the right
280
# path; this may involve adding them more than once.
281
parent_invs = parent_invs_cache.get_inventories(rev.parent_ids)
282
if parent_invs == []:
283
base_inv = Inventory(root_id=None)
287
base_inv = parent_invs[0]
288
base_tree = lookup_object(o.parents[0]).tree
289
base_mode = stat.S_IFDIR
290
store_updater = target_git_object_retriever._get_updater(rev)
291
store_updater.add_object(o, None)
292
inv_delta, unusual_modes = import_git_tree(repo.texts,
293
mapping, "", u"", (base_tree, o.tree), base_inv,
294
None, rev.revision_id, parent_invs, lookup_object,
295
(base_mode, stat.S_IFDIR), store_updater,
296
allow_submodules=getattr(repo._format, "supports_tree_reference", False))
297
store_updater.finish()
298
if unusual_modes != {}:
299
for path, mode in unusual_modes.iteritems():
300
warn_unusual_mode(rev.foreign_revid, path, mode)
301
mapping.import_unusual_file_modes(rev, unusual_modes)
303
basis_id = rev.parent_ids[0]
305
basis_id = NULL_REVISION
307
rev.inventory_sha1, inv = repo.add_inventory_by_delta(basis_id,
308
inv_delta, rev.revision_id, rev.parent_ids,
310
parent_invs_cache.add(rev.revision_id, inv)
311
repo.add_revision(rev.revision_id, rev)
312
if "verify" in debug.debug_flags:
313
new_unusual_modes = mapping.export_unusual_file_modes(rev)
314
if new_unusual_modes != unusual_modes:
315
raise AssertionError("unusual modes don't match: %r != %r" % (unusual_modes, new_unusual_modes))
316
objs = inventory_to_tree_and_blobs(inv, repo.texts, mapping, unusual_modes)
317
for newsha1, newobj, path in objs:
318
assert path is not None
322
(oldmode, oldsha1) = tree_lookup_path(lookup_object, o.tree, path)
323
if oldsha1 != newsha1:
324
raise AssertionError("%r != %r in %s" % (oldsha1, newsha1, path))
327
def import_git_objects(repo, mapping, object_iter,
328
target_git_object_retriever, heads, pb=None, limit=None):
269
if base_ie is not None:
270
deletable = [v for k,v in base_ie.children.iteritems() if k not in existing_children]
273
invdelta.append((base_inv.id2path(ie.file_id), None, ie.file_id, None))
274
if ie.kind == "directory":
275
deletable.extend(ie.children.values())
276
shamap.append((hexsha, "tree", (file_id, revision_id)))
277
return invdelta, child_modes, shamap
280
def import_git_objects(repo, mapping, object_iter, target_git_object_retriever,
329
282
"""Import a set of git objects into a bzr repository.
331
:param repo: Target Bazaar repository
284
:param repo: Bazaar repository
332
285
:param mapping: Mapping to use
333
286
:param object_iter: Iterator over Git objects.
334
:return: Tuple with pack hints and last imported revision id
336
def lookup_object(sha):
338
return object_iter[sha]
340
return target_git_object_retriever[sha]
288
# TODO: a more (memory-)efficient implementation of this
343
heads = list(set(heads))
344
parent_invs_cache = LRUInventoryCache(repo)
294
parent_invs_cache = LRUCache(50)
345
295
# Find and convert commit objects
347
297
if pb is not None:
349
299
head = heads.pop()
350
300
assert isinstance(head, str)
352
o = lookup_object(head)
302
o = object_iter[head]
355
305
if isinstance(o, Commit):
356
306
rev = mapping.import_commit(o)
357
307
if repo.has_revision(rev.revision_id):
359
squash_revision(repo, rev)
360
graph.append((o.id, o.parents))
309
root_trees[rev.revision_id] = o.tree
310
revisions[rev.revision_id] = rev
311
graph.append((rev.revision_id, rev.parent_ids))
312
target_git_object_retriever._idmap.add_entry(o.id, "commit",
313
(rev.revision_id, o.tree))
361
314
heads.extend([p for p in o.parents if p not in checked])
362
315
elif isinstance(o, Tag):
363
if o.object[1] not in checked:
364
heads.append(o.object[1])
316
heads.append(o.object[1])
366
318
trace.warning("Unable to import head object %r" % o)
369
320
# Order the revisions
370
321
# Create the inventory objects
372
revision_ids = topo_sort(graph)
374
if limit is not None:
375
revision_ids = revision_ids[:limit]
377
for offset in range(0, len(revision_ids), batch_size):
378
target_git_object_retriever.start_write_group()
322
for i, revid in enumerate(topo_sort(graph)):
324
pb.update("fetching revisions", i, len(graph))
325
rev = revisions[revid]
326
# We have to do this here, since we have to walk the tree and
327
# we need to make sure to import the blobs / trees with the right
328
# path; this may involve adding them more than once.
329
def lookup_object(sha):
331
return object_iter[sha]
333
return target_git_object_retriever[sha]
335
for parent_id in rev.parent_ids:
337
parent_invs.append(parent_invs_cache[parent_id])
339
parent_inv = repo.get_inventory(parent_id)
340
parent_invs.append(parent_inv)
341
parent_invs_cache[parent_id] = parent_inv
342
if parent_invs == []:
343
base_inv = Inventory(root_id=None)
345
base_inv = parent_invs[0]
346
inv_delta, unusual_modes, shamap = import_git_tree(repo.texts,
347
mapping, "", root_trees[revid], base_inv, None, revid,
348
parent_invs, target_git_object_retriever._idmap, lookup_object)
349
target_git_object_retriever._idmap.add_entries(shamap)
350
if unusual_modes != {}:
351
ret = "unusual modes: \n"
352
for item in unusual_modes.iteritems():
353
ret += "\t%s: %o\n" % item
354
raise AssertionError(ret)
380
repo.start_write_group()
382
for i, head in enumerate(
383
revision_ids[offset:offset+batch_size]):
385
pb.update("fetching revisions", offset+i,
387
import_git_commit(repo, mapping, head, lookup_object,
388
target_git_object_retriever,
392
repo.abort_write_group()
395
hint = repo.commit_write_group()
397
pack_hints.extend(hint)
399
target_git_object_retriever.abort_write_group()
402
target_git_object_retriever.commit_write_group()
403
return pack_hints, last_imported
356
basis_id = rev.parent_ids[0]
358
basis_id = NULL_REVISION
359
rev.inventory_sha1, inv = repo.add_inventory_by_delta(basis_id,
360
inv_delta, rev.revision_id, rev.parent_ids)
361
parent_invs_cache[rev.revision_id] = inv
362
repo.add_revision(rev.revision_id, rev)
363
if "verify" in debug.debug_flags:
364
objs = inventory_to_tree_and_blobs(inv, repo.texts, mapping)
365
for sha1, newobj, path in objs:
366
assert path is not None
367
oldobj = tree_lookup_path(lookup_object, root_trees[revid], path)
368
assert oldobj == newobj, "%r != %r in %s" % (oldobj, newobj, path)
370
target_git_object_retriever._idmap.commit()
406
373
class InterGitRepository(InterRepository):
441
408
if interesting_heads is None:
442
409
ret = [sha for (ref, sha) in refs.iteritems() if not ref.endswith("^{}")]
444
ret = [mapping.revision_id_bzr_to_foreign(revid)[0] for revid in interesting_heads if revid not in (None, NULL_REVISION)]
411
ret = [mapping.revision_id_bzr_to_foreign(revid)[0] for revid in interesting_heads if revid != NULL_REVISION]
445
412
return [rev for rev in ret if not self.target.has_revision(mapping.revision_id_foreign_to_bzr(rev))]
446
(pack_hint, _) = self.fetch_objects(determine_wants, mapping, pb)
447
if pack_hint is not None and self.target._format.pack_compresses:
448
self.target.pack(hint=pack_hint)
449
if interesting_heads is not None:
450
present_interesting_heads = self.target.has_revisions(interesting_heads)
451
missing_interesting_heads = set(interesting_heads) - present_interesting_heads
452
if missing_interesting_heads:
453
raise AssertionError("Missing interesting heads: %r" % missing_interesting_heads)
413
self.fetch_objects(determine_wants, mapping, pb)
454
414
return self._refs
457
_GIT_PROGRESS_RE = re.compile(r"(.*?): +(\d+)% \((\d+)/(\d+)\)")
458
def report_git_progress(pb, text):
459
text = text.rstrip("\r\n")
460
g = _GIT_PROGRESS_RE.match(text)
462
(text, pct, current, total) = g.groups()
463
pb.update(text, int(current), int(total))
465
pb.update(text, 0, 0)
468
418
class InterRemoteGitNonGitRepository(InterGitNonGitRepository):
469
"""InterRepository that copies revisions from a remote Git into a non-Git
419
"""InterRepository that copies revisions from a remote Git into a non-Git
472
def get_target_heads(self):
473
# FIXME: This should be more efficient
474
all_revs = self.target.all_revision_ids()
475
parent_map = self.target.get_parent_map(all_revs)
477
map(all_parents.update, parent_map.itervalues())
478
return set(all_revs) - all_parents
480
def fetch_objects(self, determine_wants, mapping, pb=None, limit=None):
422
def fetch_objects(self, determine_wants, mapping, pb=None):
481
423
def progress(text):
482
report_git_progress(pb, text)
483
store = BazaarObjectStore(self.target, mapping)
484
self.target.lock_write()
424
pb.update("git: %s" % text.rstrip("\r\n"), 0, 0)
425
graph_walker = BzrFetchGraphWalker(self.target, mapping)
428
create_pb = pb = ui.ui_factory.nested_progress_bar()
429
target_git_object_retriever = BazaarObjectStore(self.target, mapping)
432
def record_determine_wants(heads):
433
wants = determine_wants(heads)
434
recorded_wants.extend(wants)
486
heads = self.get_target_heads()
487
graph_walker = store.get_graph_walker(
488
[store._lookup_revision_sha1(head) for head in heads])
491
def record_determine_wants(heads):
492
wants = determine_wants(heads)
493
recorded_wants.extend(wants)
498
create_pb = pb = ui.ui_factory.nested_progress_bar()
438
self.target.lock_write()
500
objects_iter = self.source.fetch_objects(
501
record_determine_wants, graph_walker,
502
store.get_raw, progress)
503
return import_git_objects(self.target, mapping,
504
objects_iter, store, recorded_wants, pb, limit)
440
self.target.start_write_group()
442
objects_iter = self.source.fetch_objects(
443
record_determine_wants,
445
target_git_object_retriever.get_raw,
447
import_git_objects(self.target, mapping, objects_iter,
448
target_git_object_retriever, recorded_wants, pb)
450
self.target.commit_write_group()
512
458
def is_compatible(source, target):
513
459
"""Be compatible with GitRepository."""
514
460
# FIXME: Also check target uses VersionedFile
515
return (isinstance(source, RemoteGitRepository) and
461
return (isinstance(source, RemoteGitRepository) and
516
462
target.supports_rich_root() and
517
463
not isinstance(target, GitRepository))
520
466
class InterLocalGitNonGitRepository(InterGitNonGitRepository):
521
"""InterRepository that copies revisions from a local Git into a non-Git
467
"""InterRepository that copies revisions from a remote Git into a non-Git
524
def fetch_objects(self, determine_wants, mapping, pb=None, limit=None):
470
def fetch_objects(self, determine_wants, mapping, pb=None):
527
471
wants = determine_wants(self.source._git.get_refs())