如何在基于vue-cli的项目自定义打包环境

{
 TERM: 'xterm-256color',
 SHELL: '/usr/local/bin/bash',
 USER: 'maciej',
 PATH: '~/.bin/:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin',
 PWD: '/Users/maciej',
 EDITOR: 'vim',
 SHLVL: '1',
 HOME: '/Users/maciej',
 LOGNAME: 'maciej',
 _: '/usr/local/bin/node'
}

"script":{
  "build:testing":"cross-env NODE_ENV=‘testing' webpack"
}

const merge = require('webpack-merge')
const devEnv = require('./dev.env')

module.exports = merge(devEnv, {
 NODE_ENV: '"testing"'
})

module.exports = {
  NODE_ENV:"production"
}

function getAuthority(userAuthority){
  const menus = [];
  switch(userAuthority){
    case 'zhangsan':
      menus = ["a","b","c","d"];  //这里的a,b,c,d相当与路由配置当中页面的name
      break;
      case 'lishi':
        menus = ["a","b","c"];  
        break;
      case 'wangwu':
        menus = ["b","c","d"];  
        break;
      default:
        menus = ["a","b"];
      
  }
  return menus;
}
export default getAuthority;

"scripts":{
  "build:testing": "cross-env NODE_ENV='testing' node build/build.js",
  "build": "cross-env NODE_ENV='production' node build/build.js"
}

const env = process.env.NODE_ENV === 'testing' ? require("../config/test.env.js") : require("../config/prod.env.js");

//配置webpack.DefinePlugin将env添加到全局变量当中
plugins:[
new webpack.DefinePlugin({
  "ENV":env
})
]

//获取环境信息，然后根据环境信息读取对应的权限配置文件
const env = ENV.NODE_ENV === "testing" ? "test" : "prod";

import getAuthority from `${env}.authority.js`;

export default {
  methods:{
    login(){
      axios({...}).then(res => {  //调用登录接口获取当前用户信息
        let userAuthority = getAuthority(res.userName);  //获取当前登录用户的页面权限
        sessionStorage.setItem("authorityPages",JSON.stringify(userAuthority))  //将用户的页面权限保存起来，在生成侧边栏的时候通过v-if指令判断是否渲染
      })
    }
  }
}