WAV->MP3 encoding/tagging script

enc-mp3.sh

!/usr/bin/env ruby

if ARGV.length < 4
  puts "Usage: enc-mp3 artist year album picture"
  exit
end

artist = ARGV[0]
date = ARGV[1]
album = ARGV[2]
picture = ARGV[3]

unless File.file?(picture)
  puts "picture file #{picture} not found"
  exit
end

puts "artist: #{artist}"
puts "date: #{date}"
puts "album: #{album}"
puts "picture: #{picture}"

def encode (file, artist, date, album, picture)

  match = file.match /(\d+)\s+([^\.]+)\.wav/

  if match
      num = match[1].to_i
      title = match[2]
      tags = "--ti \"#{picture}\" --tt \"#{title}\" --tn #{num} --ty \"#{date}\" --tl \"#{album}\" --ta \"#{artist}\""
      cmd = "lame #{tags} --preset insane -q 0 \"#{file}\""
      puts cmd
      res = %x[ #{cmd} ]
      puts res
    else
      puts "NO MATCH #{file}"
  end
end

files = Dir.entries(Dir.pwd)

files.each{ |f| encode(f, artist, date, album, picture) if File.file?(f) }