# File lib/rhc/command_runner.rb, line 10
    def run!
      trace = false
      require_program :version, :description

      trap('INT') { abort program(:int_message) } if program(:int_message)
      trap('INT') { program(:int_block).call } if program(:int_block)

      global_option('-h', '--help', 'Display help documentation') do
        args = @args - %w[-h --help]
        command(:help).run(*args)
        return
      end
      global_option('-v', '--version', 'Display version information') { say version; return }
      global_option('-t', '--trace', 'Display backtrace when an error occurs') { trace = true }

      parse_global_options
      remove_global_options options, @args

      unless trace
        begin
          run_active_command
        rescue InvalidCommandError => e
          if provided_arguments.empty?
            say RHC::HelpFormatter.new(self).render
          else
            RHC::Helpers.error "The command '#{program :name} #{provided_arguments.join(' ')}' is not recognized.\n"
            say "See '#{program :name} help' for a list of valid commands."
          end
          1
        rescue \
          ArgumentError,
          OptionParser::InvalidOption,
          OptionParser::InvalidArgument,
          OptionParser::MissingArgument => e

          help_bindings = CommandHelpBindings.new(active_command, commands, Commander::Runner.instance.options)
          usage = RHC::HelpFormatter.new(self).render_command(help_bindings)
          RHC::Helpers.error e.message
          say "\n#{usage}"
          1
        rescue RHC::Exception, RHC::Rest::Exception => e
          RHC::Helpers.error e.message
          e.code.nil? ? 128 : e.code
        end
      else
        run_active_command
      end
    end