webpack.config.js multi-compiler Sequential execution

webpack.config.js

/**
  webpack.config.js
**/

const webpack = require('webpack');
const env = process.env.NODE_ENV;
const configs = [{
   name:"one",
   entry:{
   },
   output:{
   },
   module: modules,
   resolve: _resolve,
   plugins: _plugins
},{
   name:"two",
   entry:{
   },
   output:{
   },
   module: modules,
   resolve: _resolve,
   plugins: _plugins
}];

var arg = process.env.npm_config_module;
for (var i = 0; i < configs.length; i++) {
    if (arg == configs[i]["name"]) {
        configs = [configs[i]]
        break;
    }
};
console.log("isproduction:" + env + ",target is" + (arg || "all"));
if (env != 'production') {
    module.exports = configs;
} else {
    var i = 0;
    console.time("build");
    function buildModule() {
        if (i >= configs.length) {
            console.timeEnd("build");
            process.exit(0);
            return;
        };
        console.log("now target is:" + configs[i]['name']);
        console.time(configs[i]['name'])
        var multiCompiler = webpack(configs[i]);
        multiCompiler.run((err, stats) => {
            console.timeEnd(configs[i]['name']);
            i++;
            buildModule();
        });
    }
    buildModule();
};
/**
  you can edit package.json  scripts
   "dev": "NODE_ENV=local webpack -w --devtool=source-map --colors  --progress ",
   "build": "NODE_ENV=production  node --max-old-space-size=4096 ./webpack.config.js"
   
   exp: a target
   npm run dev --module=one  
   or
   npm run build --module=one
   
   exp:
   npm run dev
   npm run build 
   
   
**/