Backup directory to DVD

backupdvd.rb

#!/usr/bin/ruby

#Backup directory to DVD
require 'fileutils'

if !ARGV[1]
   puts "Usage: backupdvd.rb <Directory to backup> <disk no>"
   exit
end

@disk_count = ARGV[1].to_i
@current_size = 0

def explore(path,destination_path=".")
        #FileUtils.mkpath File.join(destination_path,"DISK#{@disk_count}",path)
        #puts File.join(destination_path,"DISK#{@disk_count}",path)
        Dir.entries(path).each do |e|
                if e.match(/^\.\./) || e.match(/^\.$/)
                        next
                end
                size=`du -ks \"#{path}/#{e}\"`
                size,dir_name= size.split(/\t/)
                dir_name.gsub!(/\n/,"")
                if(size.to_i>4000000)
                        if File.directory?(dir_name)
                                puts "#Should recurse"
                                explore(dir_name, File.join(destination_path,e))
                        else
                                puts "#Should split file"
                        end
                else
                        if((@current_size + size.to_i) >=4000000)
                                @current_size = 0
                                puts "#Creating disk ............"
                                `cd DISK#{@disk_count};find . >contenido.txt;cp contenido.txt ../DISK#{@disk_count}.txt`
                                `mkisofs -J -R -o DISK#{@disk_count}.iso DISK#{@disk_count}`
                                `rm -rf DISK#{@disk_count}`
                                @disk_count = @disk_count + 1
                        end
                        @current_size = @current_size + size.to_i
                        target = destination_path.sub /^\.\/*/,""
                        target.sub!(/\/$/,"")
                        FileUtils.mkpath(File.join("DISK#{@disk_count}",target))
                        FileUtils.cp_r( dir_name, File.join("DISK#{@disk_count}",target))
                        #puts "#{size}\t#{dir_name}"
                end
        end
end

explore(ARGV[0])