#!/bin/sh

# chkconfig:   345 10 10
# Description: Control Unicorn

# Set app name
NAME=""

# Tweak yourself
export HOME="/root"
BUNDLE_PATH="/usr/local/bin/bundle"
APP_DIR="/path/to/${NAME}"
PID="/tmp/${NAME}.pid"
CONFIG="${APP_DIR}/config/unicorn.rb"

ENV="production"
CMD="${BUNDLE_PATH} exec unicorn -c ${CONFIG} -E ${ENV} -D"

start()
{
  if [ -e $PID ]; then
    echo "${NAME} has already started."
    exit 1
  fi
  echo "Start ${NAME}..."
  cd $APP_DIR
  $CMD
}

stop()
{
  if [ ! -e $PID ]; then
    echo "${NAME} is not started."
    exit 1
  fi
  echo "Stop ${NAME}..."
  kill -QUIT `cat ${PID}`
}

force_stop()
{
  if [ ! -e $PID ]; then
    echo "${NAME} is not started."
    exit 1
  fi
  echo "Force stop ${NAME}..."
  kill -INT `cat ${PID}`
}

reload()
{
  if [ ! -e $PID ]; then
    echo "${NAME} is not started."
    start
    exit 0
  fi
  echo "Reload ${NAME}..."
  kill -HUP `cat ${PID}`
}

restart()
{
  if [ ! -e $PID ]; then
    echo "${NAME} is not started."
    start
    exit 0
  fi
  echo "Restart ${NAME}..."
  kill -USR2 `cat ${PID}`
}

case $1 in
  start)
    start
    ;;
  stop)
    stop
    ;;
  force-stop)
    force_stop
    ;;
  reload)
    reload
    ;;
  restart)
    restart
    ;;
  *)
    echo "Usage: [start|stop|force-stop|reload|restart]"
    ;;
esac