#!/bin/sh
 
APP_NAME=leship
#jar包路徑
JAR_PATH='/opt/apps'
#jar名稱
JAR_NAME='blade-api.jar'
# 日期
DATE_VALUE=`date +%Y_%m_%d`
#前一天日期
DATE_VALUE_D=`date -d "yesterday" +%Y_%m_%d`
#日誌路徑 
LOG_PATH=$JAR_PATH/logs/log-$DATE_VALUE.log 
#PID  代表是PID檔案
PID=$JAR_NAME\.pid
 
#使用說明，用來提示輸入引數
usage() {
    echo "Usage: sh 執行指令碼.sh [start|stop|restart|status]
 
"
    exit 1
}
 
#檢查程式是否在執行
is_exist(){
  pid=`ps -ef|grep $JAR_NAME|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
}
 
#啟動方法
start(){
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> $APP_NAME is already running PID=${pid} <<<
 
"
  else
    nohup java -Xms256m -Xmx512m -jar $JAR_PATH/$JAR_NAME --spring.profiles.active=prod >> $LOG_PATH 2>&1 &
    echo $! > $PID
    echo ">>> start $APP_NAME successed PID=$! <<<"
   fi
  }
 
#停止方法
stop(){
  #is_exist
  pidf=$(cat $PID)
  #echo "$pidf" 
  echo
 
 ">>> PID = $pidf begin kill $pidf <<<"
  kill $pidf
  rm -rf $PID
  sleep 2
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> PID = $pid begin kill -9 $pid  <<<"
    kill -9  $pid
    sleep 2
    echo ">>> $APP_NAME process stopped <<<" 
  else
    echo ">>> $APP_NAME is not running <<<"
  fi 
}
 
#輸出執行狀態
status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo ">>> $APP_NAME is running PID is ${pid} <<<"
  else
    echo ">>> $APP_NAME is not running <<<"
  fi
}
 
#重啟
restart(){
  stop
  start
}
 # 輸出實時日誌
logs(){
     tail -n 100 -f $LOG_PATH
}
#備份日誌
backupLog(){
    cp $LOG_PATH $JAR_PATH/log/log-$DATE_VALUE_D.log 
    #清空原始nohup.out中的內容
    cat /dev/null > $LOG_PATH
}
 
#根據輸入引數，選擇執行對應方法，不輸入則執行使用說明
case "$1" in
  "start")
    start
    ;;
  "stop")
    stop
    ;;
  "status")
    status
    ;;
  "restart")
    restart
    ;;
  "logs")
    logs
    ;;
  "backupLog")
    backupLog
    ;;
  *)
    usage
    ;;
esac
exit 0