#! /bin/sh

ACSTATEFILE='/proc/acpi/ac_adapter/AC/state'
NICECOMMAND='/usr/bin/ionice -c3 /usr/bin/nice'

ACPOWER=false
if [ -f ${ACSTATEFILE} ]
then
	PROCAC=`/bin/cat ${ACSTATEFILE}`
	PROCAC=${PROCAC##'state: '}
	if [ ${PROCAC} != 'off-line' ]
	then
		ACPOWER=true
	fi
fi

if [ -x /usr/bin/updatedb ] && [ ${ACPOWER} = true ]
then
	if [ -f /etc/updatedb.conf ]
	then
		${NICECOMMAND} /usr/bin/updatedb
	else
		${NICECOMMAND} /usr/bin/updatedb -f proc
	fi
fi