キャッシュでローカルディスクが溢れないようにちょっとずつBitcasaにコピるスクリプト

cp_to_bitcasa.rb

SRC_DIR = '/Users/a_matsuda/Music/iTunes/iTunes Media/Music'
TARGET_DIR = '/Users/a_matsuda/Bitcasa/backup/Music/iTunes/iTunes Media/Music'

def cache_is_empty?
  s = `du -s ~/Library/Caches/com.bitcasa.Bitcasa/Data/bks/outgoing | awk '{print $1}'`
  s.to_i.zero?
end

def already_copied?(artist)
  File.exists? "#{TARGET_DIR}/#{artist}"
end

Dir.glob("#{SRC_DIR}/*").each do |artist_dir|
  next if already_copied?(artist_dir.sub "#{SRC_DIR}/", '')
  sleep(30) && puts('waiting...') until cache_is_empty?
  puts "copying #{artist_dir}..."
  `cp -R "#{artist_dir}" "#{TARGET_DIR}"`
end