webpack钩子调用shell笔记

因公司vpn只能在ie里执行的缘故，需要将mac下编译后内容cp到虚拟机共享目录下，看效果，简单实用webpack到plugin钩子写了一个插件去执行shell脚本。
1、在webpack配置用引入插件 const cp = require("./你的目录/cp.js");
2、在plugins数组中加入此控件并配置

调用

new cp( //copy
          [
              {
                  from:"/Users/mazhenxiao/yuanyang/sinoocean/NationalMarketing/08_Code/Webapp/public",
                  to:"/Volumes/sinoocean/public",
                  arg:"-r"
              
          ]
      )//自定义插件

源码

/**
 * 处理执行cp到服务器发布
 */
const fs = require("fs");
const childProcess = require("child_process");
const util = require("util");
const os = require('os');
let exec = childProcess.exec;
class cp {
    constructor(arg){
      this.list = arg||[];
    }
    apply(compiler){
        let th = this;
         compiler.plugin("done", (compilation)=>{
            setImmediate(arg=>{
                th.copy();
            })
          }); 
       
    }
    copy(){
      
        let arr = [];
        let iswin = os.platform().includes("win32");
        this.list.forEach(parame=>{
            arr.push(new Promise((resolve,reject)=>{
                let str = `${iswin? "copy":"cp"} ${parame["arg"]? parame["arg"]:"-r"} ${parame["from"]} ${parame["to"]}`
                exec(str,arg=>{
                    if(!arg){
                        resolve()
                    }else{
                        reject();
                    }
                })
            }))
        })
        Promise.all(arr)
               .then(arg=>{
                   console.log(arg);
               })
               .catch(e=>{
                  // console.log(e)
               })
    }
}
module.exports = cp;