+
+ destpath = os.path.join(destdir, pathname)
+ if m.items.type == 'd':
+ path = destpath
+ else:
+ (path, filename) = os.path.split(destpath)
+
+ metadata_items.append((pathname, m))
+ if m.items.type in ('-', 'f'):
+ metadata_paths[pathname] = m
+ for block in m.data():
+ (segment, object, checksum, slice) \
+ = lbs.ObjectStore.parse_ref(block)
+ if segment not in metadata_segments:
+ metadata_segments[segment] = set()
+ metadata_segments[segment].add(pathname)
+
+ try:
+ if not os.path.isdir(path):
+ print "mkdir:", path
+ os.makedirs(path)
+ except Exception, e:
+ warn(m, "Error creating directory structure: %s" % (e,))
+ continue
+
+ # Phase 2: Restore files, ordered by how data is stored in segments.
+ def restore_file(pathname, m):
+ assert m.items.type in ('-', 'f')
+ print "extract:", pathname
+ destpath = os.path.join(destdir, pathname)
+
+ file = open(destpath, 'wb')
+ verifier = lbs.ChecksumVerifier(m.items.checksum)
+ size = 0
+ for block in m.data():
+ data = store.get(block)
+ verifier.update(data)
+ size += len(data)
+ file.write(data)
+ file.close()
+ if int(m.fields['size']) != size:
+ raise ValueError("File size does not match!")
+ if not verifier.valid():
+ raise ValueError("Bad checksum found")
+
+ while metadata_segments:
+ (segment, items) = metadata_segments.popitem()
+ print "+ Segment", segment
+ for pathname in sorted(items):
+ if pathname in metadata_paths:
+ restore_file(pathname, metadata_paths[pathname])
+ del metadata_paths[pathname]
+
+ print "+ Remaining files"
+ while metadata_paths:
+ (pathname, m) = metadata_paths.popitem()
+ restore_file(pathname, m)
+
+ # Phase 3: Restore special files (symlinks, devices).
+ # Phase 4: Restore directory permissions and modification times.
+ for (pathname, m) in reversed(metadata_items):
+ print "permissions:", pathname