autocheck.sh

#!/bin/bash

logfile=log
maxrun=0	# Run qemu for $maxrun times. When this value is 0, qemu will run forever (use ctrl+C to stop running).
timeinterval=5	# Each run lasts for $timeinterval second.
i=1
 
function die {
	pkill -9 qemu
	echo -e $1 1>&2
	stty echo
	exit
}
 
make disk.img
if [ $? != 0 ]
then
	exit
fi
 
while true
do
	echo -e "\nstart the ${i}th test..."
 
	qemu-system-i386 -serial stdio disk.img 2>&1 | tee $logfile &
	sleep $timeinterval
 
	if grep -q 'system panic' $logfile
	then
		die '\n\033[1;31mSystem panic is triggered!\033[0m'
	elif grep -q 'qemu: fatal:' $logfile
	then
		die '\n\033[1;31mqemu has crashed!\033[0m'
	elif [ `grep -c 'Hello, OS World!' $logfile` != 1 ]
	then
		die '\n\033[1;31mMysterious reboot is detected!\033[0m'
	elif [ $i == $maxrun ]
	then
	    	die '\n\033[1;31mReach maximal run!\033[0m'
	fi
 
	pkill -9 qemu
	i=$((i + 1))
done