Function DownloadToPathWithZenityProgress

Source/Tools/FEXRootFSFetcher/Main.cpp:526–548

}

bool DownloadToPathWithZenityProgress(const fextl::string& URL, const fextl::string& Path) {
  auto filename = URL.substr(URL.find_last_of('/') + 1);
  auto PathName = Path + filename;

  // -# for progress bar
  // -o for output file
  // -f for silent fail
  std::string CurlPipe = fmt::format("curl -C - -#f {} -o {} 2>&1", URL, PathName);
  const std::string StdBuf = "stdbuf -oL tr '\\r' '\\n'";
  const std::string SedBuf = "sed -u 's/[^0-9]*\\([0-9]*\\).*/\\1/'";
  // zenity --auto-close can't be used since `curl -C` for whatever reason prints 100% at the start.
  // Making zenity vanish immediately
  const std::string ZenityBuf = "zenity --time-remaining --progress --no-cancel --title 'Downloading'";
  std::string BigArgs = fmt::format("{} | {} | {} | {}", CurlPipe, StdBuf, SedBuf, ZenityBuf);
  std::array<const char*, 4> ExecveArgs = {
    "/bin/sh",
    "-c",
    BigArgs.c_str(),
    nullptr,
  };

  return Exec::ExecAndWaitForResponse(ExecveArgs[0], const_cast<char* const*>(ExecveArgs.data())) == 0;
}

std::optional<std::vector<FileTargets>> GetRootFSLinks() {
  // Decode the filetargets