WAV->FLAC encoding/tagging script

enc-flac.sh

!/usr/bin/env ruby
 
if ARGV.length < 4
  puts "Usage: enc-flac 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 = "-T TITLE=\"#{title}\" -T TRACKNUMBER=#{num} -T DATE=\"#{date}\" -T ALBUM=\"#{album}\" -T ARTIST=\"#{artist}\" -T ALBUMARTIST=\"#{artist}\""
      cmd = "flac --picture \"#{picture}\" #{tags} --best \"#{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) }