Customizing s3 database backup to keep only last 5 db entries

mysql_s3_dumper.rb

require 'mysql_s3_backup'

class MysqlS3Dumper
  attr_accessor :config
  class MysqlS3Backup::Backup
    def full(name=make_new_name)
      lock do
        # When the full backup runs it delete any binary log files that might already exist
        # in the bucket. Otherwise the restore will try to restore them even though they’re
        # older than the full backup.
        @bucket.delete_all @bin_log_prefix
        with_temp_file do |file|
          puts file
          @mysql.dump(file)
          @bucket.store(dump_file_name(name), file)
          @bucket.copy(dump_file_name(name), dump_file_name("latest"))
          @bucket.keep_last_five
        end
      end
    end
  end

  class MysqlS3Backup::Bucket
    def keep_last_five
      puts @name
      puts "coming to bucket"
      all_backups = AWS::S3::Bucket.objects(@name)
      while all_backups.count > 6
        AWS::S3::Bucket.objects(@name).first.delete
        all_backups = AWS::S3::Bucket.objects(@name)
      end
    end
  end

  def initialize
    @config = MysqlS3Backup::Config.from_yaml_file(File.dirname(__FILE__) + "/../config/s3_mysql.yml")
  end

end