[04]_serials_organizer.rb

# Check out what's inside the ENV variable, it's very useful!
# require 'pp' # pp = "pretty print"
# pp ENV

require 'FileUtils'
require 'Pathname'
require 'optparse'

$options = {}
OptionParser.new do |opts|
  opts.banner = 'Usage: serials_organizer.rb [options]'

  opts.on('-h', '--help', 'Display this screen') do
    puts opts
    exit
  end

  opts.on('-t', '--target [FOLDER]', String, 'Define the target directory to organize (it\'s USERPROFILE/Downloads by default)') do |t|
    $options[:target_dir] = t
  end

  opts.on('-s', '--serials [FOLDER]', String, 'Define the serials directory if different from the target dir') do |s|
    $options[:serials_dir] = s
  end

  opts.on('-q', '--quiet', 'If defined, the script runs without outputing anything') do |q|
    $options[:quiet] = q
  end
end.parse!

$target_dir = $options[:target_dir] || File.expand_path('Downloads', ENV['USERPROFILE'])
$serials_dir = $options[:serials_dir] || $target_dir
$stdout.instance_eval{ def write(*args); end } if $options[:quiet]
$serial_regex = /(.*)[S ](\d+)[EX](\d+)/i

def move_to_serials_subfolder(file, subfolder)
  target_folder = File.join($serials_dir, subfolder)
  FileUtils.mkpath target_folder unless File.directory? target_folder
  FileUtils.move file, File.join(target_folder, File.basename(file))
end

puts "now organizing serials from #{$target_dir}..."

Dir[File.absolute_path("#{$target_dir}/*")].each do |entry| # can be a file or a folder
  entry_name = File.basename(entry, '.*').gsub(/\./, ' ')
  if $serial_regex =~ entry_name
    show_name = $1.strip.split(' ').map(&:capitalize).join(' ')
    puts "#{show_name}: Season #{$2.to_i} Episode #{$3.to_i}"
    move_to_serials_subfolder entry, "#{show_name}/Season #{$2.to_i}"
  end
end