CheapDB

gistfile1.txt

class CheapDB
  def initialize(filename)
    @file = "#{filename}.yml"

    FileUtils.touch @file
    @data = YAML.load_file(@file) || {}
  end

  def get_or_set(key, &block)
    get(key) || set(key, block.call)
  end

  def get(key)
    @data[key]
  end

  def set(key, value)
    @data[key] = value
    File.open(@file, 'w') { |f| f.write @data.to_yaml }

    value
  end
end