module Enumerable
  def each_with_progress(&block)
    out = STDERR
    self.each_with_index do |thing,i|
      out.print sprintf("%s", makeProgress(i,self.count)) + "\r"
      block.call thing
    end
    nil
  end

  protected
  def makeProgress(i, t)
    percent = (Float(i) / Float(t)) * 100
    percent = (( percent / 1).round * 1).to_i
    number_of_bars = percent / 5
    progress = ""
    for g in 0..number_of_bars do
      progress = progress + "="
    end
    for s in 0..(19 - number_of_bars) do
      progress = progress + " "
    end
    if percent < 10 && percent != 100
      progress = progress + " "
    end
    return percent.to_s + "% |" + progress + "|"
  end
end