#!/bin/bash

# Use chkconfig --add psm to set up the script to start and stop automatically.
# P4Search Init Script.
# chkconfig: 345 91 29
# description: Start P4Search Monitor for instance REPL_SDP_INSTANCE.

ID=id

declare OpMode=${1:-status}

export ID=id
[[ "${OS:-$(uname -s)}" = "SunOS" ]] && export ID=/usr/xpg4/bin/id

if [[ `$ID -u` = 0 ]]; then
   source /p4/common/bin/p4_vars REPL_SDP_INSTANCE || exit 1
   exec su - $OSUSER -c "$0 $OpMode"
elif [[ "`$ID -u -n`" != $OSUSER ]]; then
   echo "$0 can only be run by root or $OSUSER"
   exit 1
fi

# Load SDP shell environment for Instance REPL_SDP_INSTANCE.
source /p4/common/bin/p4_vars REPL_SDP_INSTANCE || exit 1

export PSM_ROOT=${P4HOME}}/psm/
export RACK_ENV=production
export THISSCRIPT=${0##*/}

pid=0
GetPID() {
     pid=`ps ax | grep ruby | grep psm | grep -v grep | awk '{print $1;}'`
}

Status() {
     GetPID
     if [ "q$pid" = q ] ; then
      echo "psm is stopped"
     else
      echo "psm ($pid) is running"
     fi
     exit 0
}

Start() {
     psm &
     exit $?
}

Stop() {
     GetPID
     kill $pid
     exit $?
}

Usage() {
     echo -e "\nUsage: $THISSCRIPT {start|stop}\n"
     exit 100
}

if [ $# != 1 ] ; then
     Usage
fi
case $OpMode in
     reload)
      GetPID
      kill -HUP $pid
      opid=$pid
      GetPID
      if [ "q$pid" != q -a $pid = $opid ] ; then
        echo "psm reloaded"
      else
        echo "psm not running"
      fi
      ;;
     restart)
      Stop
      Start
      ;;
     start)
      Start
      ;;
     status)
      Status
      ;;
     stop)
      Stop
      ;;
     *)
      Usage
      ;;
esac