#!/bin/sh
# 设置hexo 项目路径
BLOG_PATH=/data/hexo/blog

#使用说明，用来提示输入参数
usage() {
    echo "Usage: sh 执行脚本.sh [start|stop|restart|status] "
    exit 1
}

#检查程序是否在运行
is_exist(){
  pid=`ps -ef|grep hexo|grep -v grep|awk '{print $2}' `
  #如果不存在返回1，存在返回0
  if [ -z "${pid}" ]; then
   return 1
  else
    return 0
  fi
}

#启动方法
 start(){
   is_exist
   if [ $? -eq "0" ]; then
     echo "hexo_blog is already running. pid=${pid} ."
   else
   	 cd $BLOG_PATH
   	 git pull
   	 sleep 5
	 hexo clean
	 sleep 1
#	 nohup hexo server >hexo-blog.log 2>&1 & 	 
	 hexo g 
  fi
 }

#停止方法
stop(){
  is_exist
  if [ $? -eq "0" ]; then
    kill -9 $pid
  else
    echo "hexo_blog is not running"
  fi
}

#输出运行状态
status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo "hexo_blog is running. Pid is ${pid}"
  else
    echo "hexo_blog is NOT running."
  fi
}

#重启
restart(){
  stop
  start
}


#根据输入参数，选择执行对应方法，不输入则执行使用说明
case "$1" in
  "start")
    start
    ;;
  "stop")
    stop
    ;;
  "status")
    status
    ;;
  "restart")
    restart
    ;;
  *)
    usage
    ;;
esac