Ruby tagging scripts for JDownloader output from Bandcamp and Soundcloud (requires id3lib-ruby) - you better read these if you want to know how to use them!

tbd2.rb

#!/usr/bin/ruby
require 'rubygems'
require 'id3lib'

dashargs = ARGV.select{|x|x[0] == "-"}
args = ARGV - dashargs

@settracknames = dashargs.include?('-f')
@deltracknums = dashargs.include?("-n")
@ignorealbum = dashargs.include?("-ia")


dirs = args.map{|x|File.expand_path(x.strip)}
if dirs.length == 0
  puts
  puts "this is the one that tags based on the folder's name"
  puts
  puts "invocation: tbd2.rb [-f] dir1 [dir2 dir3 ...]"
  puts "  -f: also grab the track name (must follow a ' - ')"
  puts "  -n: track name takes the form >>  [0-9]*[.] [content].ext  <<  (must follow a ' - ')"
  puts " -ia: don't look for an album name (just artist name)"
  puts
  exit
end

dirs.each do |dir|
    puts "working in #{dir}"
    dname = dir.split("/").last.gsub(/\.[a-zA-Z0-9]{0,4}$/,"")
    puts "dname: #{dname}"
    if @ignorealbum
      artist = dname
    else
      artist, album = dname.split(" - ",2)
    end
    puts "ARTIST: #{artist} ALBUM: #{album}"
    next if artist.to_s == "" || (album.to_s == "" && !@ignorealbum)
    files = Dir.glob("#{dir}/*.mp3") + Dir.glob("#{dir}/*.m4a") + Dir.glob("#{dir}/*.MP3") + Dir.glob("#{dir}/*.WMA") 
    files.each do |file|
      begin
          puts file
          tag = ID3Lib::Tag.new(file)

          puts "ARTIST: #{artist}"
          tag.artist = artist

          puts "ALBUM: #{album}"
          tag.album = album

          if @settracknames 
            if @deltracknums
              title = file.split("/").last.gsub(/\.[a-zA-Z0-9]*$/,"").gsub(/^[0-9]*\.?/,"").gsub(artist,"").gsub(/^[ ]*- /,"").gsub(/^ - /,"")
            else
              fname = file.split("/").last.gsub(/\.[a-zA-Z0-9]*$/,"")
              whatever, title = fname.split(" - ",2)
              title = whatever if title == ""
            end

            puts "TITLE: #{title}"
            tag.title = title
          end

          tag.update!
          puts "TAGGED!"
      rescue => error
          puts "ERR0R!!!!"
          puts error.inspect
          puts file.inspect
      end
    end
end

tbf.rb

#!/usr/bin/ruby
#
# tags files of the form Artist - Trackname.mp3
# or with -r: Trackname_blahblahblah - Artist.mp3 (Soundcloud from Jdownloader format)
#
require 'rubygems'
require 'id3lib'

args = ARGV
if args.include?("--force")
  @force = true
  args = args.select{|x|x != "--force"}
else
  @force = false
end

if args.include?("-r")
  @reverse = true
  args = args.select{|x|x != "-r"}
else
  @reverse = false
end

files = args.map{|x|File.expand_path(x.strip)}

if files.length == 0
  puts "invocation: tbf.rb [--force] file1 [file2 file3 ...]"
  puts
  puts "  --force: force overwrite of tags if they don't exist"
  puts

  exit
end

workingdir = `pwd`

files.each do |file|
  begin
      doupdate = false
      puts file
      tag = ID3Lib::Tag.new(file)
      #puts tag.inspect
      fname = file.split("/").last.gsub(/\.[a-zA-Z0-9]*$/,"")
      if @reverse
        title, artist = fname.split(" - ",2)
      else
        artist, title = fname.split(" - ",2)
      end
      if tag.title.to_s == "" || @force
        puts "TITLE: #{title}"
        tag.title = title
        doupdate = true
      end
      if tag.artist.to_s == "" || @force
        puts "ARTIST: #{artist}"
        tag.artist = artist
        doupdate = true
      end
      if doupdate
        tag.update!
      end
  rescue 
      puts file.inspect
  end
end