Zlibでアーカイビング

正直に言いますが、特にネタが無かったので。アーカイビングって言葉、なんか違和感がありますね。

require "zlib"

path = ARGV.shift
text = ARGV.shift
if text.nil? or text.empty?
  Zlib::GzipReader.open(path) do |inp|
    print inp.read
  end
else
  Zlib::GzipWriter.open(path) do |out|
    3.times do |i|
      out.write "##{i}:#{text}\n"
    end   
  end
end

$ ruby zlibtest.rb test.gz "good day."
$ gzip -dc test.gz
#0:good day.
#1:good day.
#2:good day.
$ ruby zlibtest.rb test.gz
#0:good day.
#1:good day.
#2:good day.
$