encompass-mercury

#! /bin/bash


electrum_config="/etc/encompass-mercury.conf"
if [ ! -f $electrum_config ]; then
    echo "$electrum_config does not exist"
    echo "please run 'configure'"
    exit 1
fi

if ! hash run_encompass_mercury 2>/dev/null; then
    echo "run_encompass_mercury is not installed"
    echo "Please run 'python setup.py install'"
    exit 1
fi



function read_config()
{
    text=$1
    echo `grep -e ^$text $electrum_config |awk -F\= '{print $2}' | tail -n 1| tr -d ' '`
}

# read path from config
path=$(read_config "path")
# read username
user=$(read_config "username")

# get PID of server
if [ `id -u` = 0 ] ; then
    if ! PID=`su $user -c "run_encompass_mercury getpid"`; then
	PID=""
    fi
else
    if ! PID=`run_encompass_mercury getpid`; then
	PID=""
    fi
fi;

case "$1" in
    start)
	if [ "$PID" ]; then
	    echo "Server already running (pid $PID)"
	    exit
	fi

	if ! [ "$path" ]; then
	    echo "Variable path not set in $electrum_config"
	    exit
	fi

	logfile=$(read_config "logfile")
	if ! [ -f $logfile ]; then
	    touch $logfile
	    chown $user:$user $logfile
	fi

	echo "Starting server as daemon"
	cmd="ulimit -n 65536 ; nohup run_encompass_mercury > /dev/null &"
	if [ `id -u` = 0 ] ; then
            su $user -c "$cmd"
	else
	    eval $cmd
	fi
	;;
    stop)
	if [ ! $PID ]; then
	    echo "Server not running"
	    exit
	fi
        cmd="run_encompass_mercury stop"
	if [ `id -u` = 0 ] ; then
            su $user -c "$cmd"
	else
	    $cmd
	fi
	echo "Waiting until process $PID terminates..."
	while ps -p $PID > /dev/null; do sleep 1; done
	echo "Done."
	;;
    status)
	if [ ! "$PID" ]; then
	    echo "Server not running"
	else
	    echo "Server running (pid $PID)"
	fi
	;;
    getinfo|peers|numpeers|sessions|numsessions)
	if [ ! "$PID" ]; then
	    echo "Server not running"
	    exit
	fi
        cmd="run_encompass_mercury $1"
	if [ `id -u` = 0 ] ; then
            su $user -c "$cmd"
	else
	    $cmd
	fi
	;;
    restart)
	$0 stop
	$0 start
	;;
    *)
	echo "Usage: encompass-mercury {start|stop|restart|status|getinfo|peers|numpeers|sessions|numsessions}"
	exit 1
	;;
esac

exit 0