class Rails::Application::Configuration

def generate_local_secret
  key_file = root.join("tmp/local_secret.txt")
  unless File.exist?(key_file)
    random_key = SecureRandom.hex(64)
    FileUtils.mkdir_p(key_file.dirname)
    File.binwrite(key_file, random_key)
  end
  File.binread(key_file)
end