#!/bin/sh
#
# Author: Martti Kuparinen <martti.kuparinen@iki.fi>
#
# $Id: tester,v 1.1 2005/06/28 10:11:45 martti Exp $
#
# Usage: ./tester 13 45
# -> start the kernel compilation at 13:45 hrs
#

usage()
{
	echo "Usage: `basename $0` HH MM"
	exit 1
}

time2secs()
{
    # $1 = HH
    # $2 = MM
    # $3 = SS
    # return: seconds

    HH=`expr ${1} \* 3600`
    RESULT=${HH}
    MM=`expr ${2} \* 60`
    RESULT=`expr ${RESULT} + ${MM}`
    RESULT=`expr ${RESULT} + ${3}`
}

delta()
{
    # $1: Time 1
    # $2: Time 2
    # return: seconds
	RESULT=`expr ${1} - ${2}`
}

[ $# -ne 2 ] && usage

rm -rf /usr/src/sys/arch/i386/compile/GENERIC
cd /usr/src/sys/arch/i386/conf
config GENERIC

time2secs ${1} ${2} 0
TARGET=${RESULT}

time2secs `date +%H` `date +%M` `date +%S`
NOW=${RESULT}

delta ${TARGET} ${NOW}
DELTA=${RESULT}
if [ ${DELTA} -gt 60  ]; then
    DELTA=`expr ${DELTA} - 30`
    echo "Sleeping ${DELTA} seconds"
    sleep ${DELTA}
fi

time2secs `date +%H` `date +%M` `date +%S`
NOW=${RESULT}
delta ${TARGET} ${NOW}
DELTA=${RESULT}
[ ${DELTA} -gt 0 ] && echo "Waiting ${DELTA} seconds"

WAIT=1
while [ ${WAIT} -eq 1 ]
do
    time2secs `date +%H` `date +%M` `date +%S`
    NOW=${RESULT}
    delta ${TARGET} ${NOW}
    DELTA=${RESULT}
    [ ${DELTA} -lt 2 ] && WAIT=0
    sleep 1
done

cd /usr/src/sys/arch/i386/compile/GENERIC
/usr/bin/time make dependall