AppleCache/server/build-cache-url.dart

void main(List<String> args) {
  var cacheServerUrl = Uri.parse(args[0]);
  var sourceDataUrl = Uri.parse(args[1]);

  var url = cacheServerUrl.replace(
      path: sourceDataUrl.path,
      queryParameters: {"source": sourceDataUrl.host}
        ..addAll(sourceDataUrl.queryParameters));
  print(url);
}