# File lib/taps/config.rb, line 21
      def verify_database_url(db_url=nil)
        db_url ||= self.database_url
        db = Sequel.connect(db_url)
        db.tables
        db.disconnect
      rescue Object => e
        puts "Failed to connect to database:\n  #{e.class} -> #{e}"
        exit 1
      end