Function getRegistryScheme

src/docker/spec.cpp:125–147

Try<string> getRegistryScheme(const string& registry)
{
  Result<int> port = getRegistryPort(registry);
  if (port.isError()) {
    return Error("Failed to get registry port: " + port.error());
  } else if (port.isSome()) {
    if (port.get() == 443) {
      return "https";
    }

    if (port.get() == 80) {
      return "http";
    }

    // NOTE: For a local registry, it's typically a http server.
    const string host = getRegistryHost(registry);
    if (host == "localhost" || host == "127.0.0.1") {
      return "http";
    }
  }

  return "https";
}


string getRegistryHost(const string& registry)