sabnzb download folder sorter

#!/usr/bin/env groovy
import java.util.regex.Pattern

# Older versions of sabnzb created a folder structure like this
#   /complete/4323322/<item>.mp3
#   /complete/4564334/<item>.mkv
# 
# This script will traverse these directories, move the contents
# into the specified folder and remove empty directories:
#   /complete/music/<item>.mp3
#   /complete/video/<item>.mkv
#
# @author: marcel maatkamp (m.maatkamp avec gmail)
 
[ 
 "images" : ["jpg","gif","bmp"],
 "movies" : ["wmv","avi","mov","mkv","mpg4","mp4.*","m4v","mpg"],
 "music"  : ["mp3","wav","flac","m3u", "cue"],
 "books"  : ["pdf","djv", "djvu","chm"],
 "dvds"   : ["iso"],
 "nzb"    : ["nzb","nfo","sfv"], 
 "other"  : ["nfo","log","txt","par2"]
].each { type ->
 new File(type.key).mkdir()
 type.value.each { extention ->
  new File("./").eachDirMatch(~/[0-9].*/) { dir ->
 
   def dirClos 
   dirClos = { 
     println "Dir ${it.canonicalPath}";
     it.eachDir( dirClos )
     it.eachFileMatch(Pattern.compile(/.*.${extention}/, Pattern.CASE_INSENSITIVE)) { file ->
      file.renameTo(new File("./${type.key}/"+file.name))
     }
     if(it.list().toList().empty) { 
       it.delete() 
     }
   }
   dirClos(dir)
  }
 } 
}