Function ValidateCheckExists

Source/Tools/FEXRootFSFetcher/Main.cpp:736–773

}

bool ValidateCheckExists(const WebFileFetcher::FileTargets& Target) {
  fextl::string RootFS = FEXCore::Config::GetDataDirectory() + "RootFS/";
  auto filename = Target.URL.substr(Target.URL.find_last_of('/') + 1);
  auto PathName = RootFS + filename;
  uint64_t ExpectedHash = std::stoul(Target.Hash, nullptr, 16);

  std::error_code ec;
  if (std::filesystem::exists(PathName, ec)) {
    const std::array<const fextl::string, 2> Args {
      "Overwrite",
      "Validate",
    };
    fextl::string Text = filename + " already exists. What do you want to do?";
    int Result = AskForConfirmationList(Text, Args);
    if (Result == -1) {
      return false;
    }

    auto Res = XXFileHash::HashFile(PathName);
    if (Result == 0) {
      if (Res == ExpectedHash) {
        fextl::string Text = fextl::fmt::format("{} matches expected hash. Skipping download", filename);
        ExecWithInfo(Text);
        return false;
      }
    } else if (Result == 1) {
      if (Res != ExpectedHash) {
        return AskForConfirmation("RootFS doesn't match hash!\nDo you want to redownload?");
      } else {
        fextl::string Text = fextl::fmt::format("{} matches expected hash", filename);
        ExecWithInfo(Text);
        return false;
      }
    }
  }

  return true;
}

bool ValidateDownloadSelection(const WebFileFetcher::FileTargets& Target) {
  fextl::string Text = fextl::fmt::format("Selected Rootfs: {}\n", Target.DistroName);