#!/bin/bash
# -----------------------------------------------------------------------------
# Executes a command on the given ONOS instance and matches the output
# to the passed after X retries.
# First argument is the IP address of the machine to run the command on,
# then you pass the command and it's arguments if needed, then --expect and
# after it the string of what the output should be or --retry and the maximum
# retries with 5 seconds delay between them
# Example:
# onos-execute-expect 1.1.1.1 fooCommand fooParamenter --retry 5 --expect fooOutputString
# -----------------------------------------------------------------------------

[ ! -d "$ONOS_ROOT" ] && echo "ONOS_ROOT is not defined" >&2 && exit 1
. $ONOS_ROOT/tools/build/envDefaults

aux=/tmp/stc/stc-$$.log
trap "rm -f $aux 2>/dev/null" EXIT

retry=0
cmd=""
expct=""

for ((i=1; i<=$#; i++))
do
	if [ "${!i}" = "--expect" ]; then
		next=$((i+1))
		expct="${!next}"
		i=$i+1
	elif [ "${!i}" = "--retry" ]; then
		next=$((i+1))
		retry="${!next}"
		i=$i+1
	else
		cmd="$cmd ${!i}";
	fi
done

until [ $retry -eq -1 ]
do
	onos $cmd > $aux
	cat $aux
	grep -q $expct $aux && echo "expected value found" && exit 0
	retry=$[$retry-1]
	sleep 5
done
exit 1