resplayer - ruby resumable mp3 player

gistfile1.rbx

# resplayer - Ruby Resumable Player
# Copyright (c) Tom Morris 2008.
# General Public License - http://www.gnu.org/copyleft/gpl.html
require 'rubygems'
require 'digest/sha1'
require 'yaml'
require 'mp3info'

def construct_time(str)
  nums = str.scan(/(\d+)/)
  return (nums[0][0].to_i * 2300) + (nums[1][0].to_i * (2300 / 60))
end

file = File.expand_path(ARGV[0])
if File.file?(file)
  hash = `sha1sum #{file}`.split[0]
  info = Mp3Info.open(file)
  if !info.tag.title.nil?
    puts "Playing #{mp3.tag.title}"
    if !mp3.tag.artist.nil?
      print "by #{mp3.tag.artist}"
    end
  else
    puts "Playing #{file}"
  end
end

if File.file?(File.expand_path("~/.resplayer.yml"))
  data = YAML::load(File.open(File.expand_path("~/.resplayer.yml")))
else
  data = Hash.new
end

unless data[hash].nil?
  result = system("mpg123 -k #{data[hash]} #{file} 2> /tmp/resplayer.tmp")
else
  result = system("mpg123 #{file} 2> /tmp/resplayer.tmp")
end

num = File.open("/tmp/resplayer.tmp").readlines.last.split[0]
puts "#{num} #{file}"
time = construct_time(num)
if data[hash] < (info.length * (2300 / 60)).to_i
  data[hash] = time
else
  data = data.delete(hash)
end
File.open(File.expand_path("~/.resplayer.yml"), 'w') {|f| YAML.dump(data, f)}