module Geocoder::MaxmindDatabase

def data_files(package, dir = "tmp")
  case package
  when :geolite_city_csv
    # use the last two in case multiple versions exist
    files = Dir.glob(File.join(dir, "GeoLiteCity_*/*.csv"))[-2..-1].sort
    Hash[*files.zip(["maxmind_geolite_city_blocks", "maxmind_geolite_city_location"]).flatten]
  when :geolite_country_csv
    {File.join(dir, "GeoIPCountryWhois.csv") => "maxmind_geolite_country"}
  end
end