#! /bin/sh
# postgresql	This is the init script for starting up the PostgreSQL
#		server
#
# chkconfig: 2345 85 15
# description: Starts and stops the PostgreSQL backend daemon that handles \
#	       all database requests.
# processname: postmaster
# pidfile: /var/run/postmaster.pid
### BEGIN INIT INFO
# Provides: postgresql
# Required-Start: $local_fs $syslog
# Required-Stop:
# Default-Start: 3 4 5
# Default-Stop: 0 1 2 6
# Short-Description: PostgreSql server database
# Description: Starts and stops the PostgreSQL backend daemon that handles
#              all database requests.
### END INIT INFO

# Source function library.
INITD=/etc/rc.d/init.d
. $INITD/functions

# Get function listing for cross-distribution logic.
TYPESET=`typeset -F`
# Get config.
. /etc/sysconfig/network

# Find the name of the script
NAME=postgresql

# Set defaults for port and database directory
LOGFILE=/var/log/postgres/postgresql

[ -f /etc/sysconfig/postgresql ] && . /etc/sysconfig/postgresql
[ -f ~postgres/.profile ] && . ~postgres/.profile

# Override defaults from /etc/sysconfig/pgsql if file is present
export PGDATA

# Check that networking is up.
# Pretty much need it for postmaster.
[ "${NETWORKING}" = "no" ] && exit 0

[ -f /usr/bin/postmaster ] || exit 0


start(){
	PSQL_START=$"Starting ${NAME} service: "

	# Check for the PGDATA structure
	if [ ! -f $PGDATA/PG_VERSION ]
    then
	        gprintf "Initializing database: "
                if [ ! -d $PGDATA ]
		then
			mkdir -p $PGDATA
			chown postgres.postgres $PGDATA
			chmod go-rwx $PGDATA
		fi
		# Initialize the database
		su -l postgres -s /bin/sh -c "/usr/bin/initdb --pgdata=$PGDATA > /var/log/postgres/postgresql 2>&1" < /dev/null
		[ -f $PGDATA/PG_VERSION ] && echo_success
		[ ! -f $PGDATA/PG_VERSION ] && echo_failure
		echo
 	fi

	# Check for postmaster already running...
  # note that pg_ctl only looks at the data structures in PGDATA
  # you really do need the pidof()
	pid=`pidof -s /usr/bin/postmaster`
	if [ $pid ] && /usr/bin/pg_ctl -l ${LOGFILE} status -D $PGDATA > /dev/null 2>&1
	then
		gprintf "Postmaster already running.\n"
	else
		#all systems go -- remove any stale lock files
		rm -f /tmp/.s.PGSQL.* > /dev/null
		gprintf "%s" "$PSQL_START"
		su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl -l ${LOGFILE} -D $PGDATA -p /usr/bin/postmaster start  > /dev/null 2>&1" < /dev/null
 		sleep 1
 		pid=`pidof -s /usr/bin/postmaster`
 		if [ $pid ]
		then
			if echo "$TYPESET"|grep "declare -f success" >/dev/null
			then
				success "%s" "$PSQL_START"
			else
				gprintf "  [ OK ]\n"
			fi
			touch /var/lock/subsys/${NAME}
			echo $pid > /var/run/postmaster.pid
			echo
		else
			if echo "$TYPESET"|grep "declare -f failure" >/dev/null
			then
				failure "%s" "$PSQL_START"
			else
				gprintf " [ FAILED ]\n"
			fi
			echo
		fi
	fi
}

stop(){
	PSQL_STOP=$"Stopping ${NAME} service: "
    gprintf "%s" "$PSQL_STOP"
	su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl -l ${LOGFILE} stop -D $PGDATA -s -m fast" > /dev/null 2>&1
	ret=$? 
	if [ $ret -eq 0 ]
	then
		if echo "$TYPESET"|grep "declare -f success" >/dev/null
		then
			success "%s" "$PSQL_STOP"
		else
			gprintf "  [ OK ]\n"
		fi

	else
		if echo "$TYPESET"|grep "declare -f failure" >/dev/null
		then
			failure "%s" "$PSQL_STOP"
		else
			gprintf "  [ FAILED ]\n"
		fi

	fi
	echo
	rm -f /var/run/postmaster.pid
	rm -f /var/lock/subsys/${NAME}
}

restart(){
    stop
    start
}

condrestart(){
    [ -e /var/lock/subsys/${NAME} ] && restart
}

reload(){
    su -l postgres -s /bin/sh -c "/usr/bin/pg_ctl -l ${LOGFILE} reload -D $PGDATA -s" > /dev/null 2>&1
}

# This script is slightly unusual in that the name of the daemon (postmaster)
# is not the same as the name of the subsystem (postgresql)

# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
	status postmaster
	;;
  restart)
	restart
	;;
  condrestart)
	condrestart
	;;
  reload|force-reload)
	reload
	;;
  *)
	gprintf "Usage: %s {start|stop|status|restart|condrestart|reload|force-reload}\n" "$0"
	exit 1
esac

exit 0