def update_from_lid(lid: LID) -> LIDVID:
# Find the path corresponding to this LID.
path = vv_lid_path(lid)
# First, update all the children recursively. Get their
# LIDs by extending this LID with the names of the
# subdirectories of path. That handles directories.
child_lidvids: Set[LIDVID] = {
update_from_lid(lid.extend_lid(strip_segment(name)))
for name in single_version_fs.listdir(path) if is_segment(name)
}
# Now look at files. We create a VersionContents object
# from the set of new LIDVIDs and all the files contained
# in the component's directory.
contents = VersionContents.create_from_lidvids_and_dirpath(
child_lidvids, single_version_fs, path)
# Now we ask the Multiversioned to insert these contents
# as a new version if needed. It returns the new LIDVID
# if a new LIDVID is needed, otherwise it returns the old
# one.
return self.add_contents_if(is_new, lid, contents, False)
def _extend_lidvid(lid: LID, vid: VID, segment: str) -> str:
new_lid = lid.extend_lid(segment)
new_lidvid = LIDVID.create_from_lid_and_vid(new_lid, vid)
return str(new_lidvid)
