var fs = require("fs");
var envify = require('envify/custom')
var browserify = require("browserify");
browserify("./src/index.js")
    .transform("babelify", {
        plugins: [
            '@babel/preset-env',
            "@babel/preset-es2015"
        ],
        plugins: [
            '@babel/plugin-transform-modules-commonjs',
            '@babel/plugin-transform-object-assign',
            '@babel/plugin-proposal-class-properties',
            '@babel/plugin-proposal-object-rest-spread'
        ]
    }).transform(
        // 用来处理 `node_modules` 文件
        { global: true },
        envify({ NODE_ENV: 'production' })
    )
    .bundle()

    .pipe(fs.createWriteStream("./dist/index.js"));