def resolve_asset_uri(uri)
        filename, _ = URIUtils.parse_asset_uri(uri)
        return uri, Set.new( [URIUtils.build_file_digest_uri(filename)] )
      end
def resolve_asset_uri(uri)
        filename, _ = URIUtils.parse_asset_uri(uri)
        return uri, Set.new( [URIUtils.build_file_digest_uri(filename)] )
      end
Internal: Finds an asset given a URI

 uri - String. Contains file:// scheme, absolute path to
       file.
       e.g. "file:///Users/schneems/sprockets/test/fixtures/default/gallery.js?type=application/javascript"

 Returns Array. Contains a String uri and Set of dependencies