module Rufo::Settings

def init_settings(options)
  OPTIONS.each do |name, valid_options|
    default = valid_options.first
    value = options.fetch(name, default)
    unless valid_options.include?(value)
      $stderr.puts "Invalid value for #{name}: #{value.inspect}. Valid " \
                   "values are: #{valid_options.map(&:inspect).join(', ')}"
      value = default
    end
    self.public_send("#{name}=", value)
  end
  diff = options.keys - OPTIONS.keys
  diff.each do |key|
    $stderr.puts "Invalid config option=#{key}"
  end
end