#compdef rrdtool

_arguments \
  ':rrdtool command:(create update updatev graph dump restore
                   last lastupdate first help info fetch tune
		   resize xport)' \
  '*::subcmd:->subcmd' && return 0

case "$state" in
    (subcmd)

  case "$words[1]" in
      (help)
      	_wanted -V 'subcommands' expl 'subcommand' compadd \
	create update updatev graph dump restore last lastupdate \
	first help info fetch tune resize xport
	;;
      (*)
    	_files
    	;;
  esac
  ;;
esac
