TrinityCore runworld bash script - 2015-09-19

#!/bin/sh

# site settings
BaseDir="/home/$USER/Server/Core"
LogDir="$BaseDir/logs"
AuthBin="$BaseDir/bin/authserver"
AuthParm="--config $BaseDir/conf/authserver.conf"
BNetBin="$BaseDir/bin/bnetserver"
BNetparm="--config $BaseDir/conf/bnetserver.conf"
WorldBin="$BaseDir/bin/worldserver"
WorldParm="--config $BaseDir/conf/worldserver.conf"
CheckBin="`which mysqlcheck`"
SQLUser="trinity"
SQLPass="trinity"
SQL_DBs="auth characters"

start_world () {
  PID=`pgrep -u $USER worldserver`
  if [ ! -n "$PID" ]; then
    "$WorldBin" "$WorldParm"
    RC=$?
  fi
}

norm_exit () {
  echo "Normal server exit"
  exit
}

err_exit () {
  # should actually do something useful here
  echo "`date '+%D %H:%M:%S'` Server error...restarting..." >> "$LogDir/crash.log"
}

invalid_exit () {
  echo "`date '+%D %H:%M:%S'` Invalid exit code ($RC)...restarting..." >> "$LogDir/invalid_exits.log"
}

maint_exit () {
  echo "`date '+%D %H:%M:%S'` --==Begin Weekly Maintenance==--" >> "$LogDir/maintenance.log"

  echo "`date '+%D %H:%M:%S'` Optimizing database(s)" >> "$LogDir/maintenance.log"
  "$CheckBin" -u$SQLUser -p$SQLPass -o --databases $SQL_DBs >> "$LogDir/maintenance.log"

  echo "`date '+%D %H:%M:%S'` Stopping authserver" >> "$LogDir/maintenance.log"
  PID=`pgrep -u $USER authserver`
  if [ -n "$PID" ]; then
    kill -INT `pgrep -u $USER authserver`
    sleep 4
    PID=`pgrep -u $USER authserver`
    if [ -n "$PID" ]; then
      kill -KILL `pgrep -u $USER authserver`
      sleep 1
    fi
  fi

  echo "`date '+%D %H:%M:%S'` Stopping bnetserver" >> "$LogDir/maintenance.log"
  PID=`pgrep -u $USER bnetserver`
  if [ -n "$PID" ]; then
    kill -INT `pgrep -u $USER bnetserver`
    sleep 4
    PID=`pgrep -u $USER bnetserver`
    if [ -n "$PID" ]; then
      kill -KILL `pgrep -u $USER bnetserver`
      sleep 1
    fi
  fi

  echo "`date '+%D %H:%M:%S'` Rotating log files" >> "$LogDir/maintenance.log"
  logrotate -s "$LogDir/rotate.status" "$BaseDir/conf/logrotate.conf"

  echo "`date '+%D %H:%M:%S'` Re-launching authserver" >> "$LogDir/maintenance.log"
  PID=`pgrep -f AuthServer`
  if [ ! -n "$PID" ]; then
    screen -a -d -m -t AuthServer "$AuthBin" "$AuthParm"
  fi

  echo "`date '+%D %H:%M:%S'` Re-launching bnetserver" >> "$LogDir/maintenance.log"
  PID=`pgrep -f BNetServer`
  if [ ! -n "$PID" ]; then
    screen -a -d -m -t BNetServer "$BNetBin" "$BNetParm"
  fi

  echo "`date '+%D %H:%M:%S'` --==End Weekly Maintenance==--" >> "$LogDir/maintenance.log"
  echo >> "$LogDir/maintenance.log"

}

while true
do
  start_world
  case "$RC" in
    0)
      norm_exit
      ;;
    1)
      err_exit
      ;;
    3)
      maint_exit
      ;;
    *)
      invalid_exit
      ;;
  esac
done