Method RunCountriesCheckAsyncSaveOnly

libs/storage/storage.cpp:304–425

}

void Storage::RunCountriesCheckAsyncSaveOnly()
{
  std::string const serverMapsUrl = "meta/" SERVER_MAPS_FILE;
  LOG(LINFO, ("COUNTRIES: check for map updates by fetching", serverMapsUrl));

  m_downloader->DownloadAsStringFromMeta(serverMapsUrl, [this, serverMapsUrl](std::string const & mapsBuffer)
  {
    if (mapsBuffer.empty())
    {
      LOG(LWARNING, ("COUNTRIES:", serverMapsUrl, "empty response or error - skip update"));
      NotifyCheckUpdatesResult(storage::CheckUpdatesStatus::Error);
      return false;
    }

    LOG(LDEBUG, ("COUNTRIES: parsing downloaded", serverMapsUrl));
    bool isEOL = false;
    int64_t const dataVersion = ParseServerMapsAndGetLatestVersion(mapsBuffer, isEOL);
    if (dataVersion == 0)
    {
      LOG(LWARNING, ("COUNTRIES: latest map version info not found for map series", MAP_SERIES));
      NotifyCheckUpdatesResult(storage::CheckUpdatesStatus::Error);
      return false;
    }
    LOG(LINFO, ("COUNTRIES:", dataVersion, "is latest map version for series", MAP_SERIES, "isEOL:", isEOL));
    if (dataVersion <= m_currentVersion)
    {
      LOG(LDEBUG, ("COUNTRIES:", dataVersion, "is not newer than current", m_currentVersion, "- skipping"));
      if (isEOL)
        NotifyCheckUpdatesResult(storage::CheckUpdatesStatus::EOL);
      else
        NotifyCheckUpdatesResult(storage::CheckUpdatesStatus::NoUpdate);
      return false;
    }

    /// @todo(pastk): request servers list from meta using the new/pending data version.
    /// e.g. temporary set m_downloader->SetDataVersion(dataVersion); or pass new version as a param.
    // Force fetch new servers list for new data version.
    m_downloader->ResetMetaConfig();

    auto const countriesUrl = downloader::GetFileDownloadUrl(COUNTRIES_FILE, dataVersion);
    LOG(LINFO, ("COUNTRIES: fetching updated", dataVersion, "maps list from", countriesUrl));
    // Use MapFilesDownloader so we respect custom server / metaserver selection.
    m_downloader->DownloadAsString(countriesUrl, [this, dataVersion](std::string const & buffer)
    {
      LOG(LDEBUG, ("COUNTRIES: downloaded bytes=", buffer.size()));

      if (buffer.empty())
      {
        LOG(LWARNING, ("COUNTRIES:", COUNTRIES_FILE, "empty response or error - skip update"));
        NotifyCheckUpdatesResult(storage::CheckUpdatesStatus::Error);
        return false;
      }

      CountryTree countries;
      Affiliations affiliations;
      CountryNameSynonyms synonyms;
      MwmTopCityGeoIds topCities;
      MwmTopCountryGeoIds topCountries;