const UselessFile = require('useless-files-webpack-plugin');

module.exports = {
    baseUrl: process.env.NODE_ENV === "production" ? "./" : "/",
    outputDir: process.env.outputDir,
    configureWebpack: config => {
        if (process.env.NODE_ENV === "production") {
            // 为生产环境修改配置...
            config.externals = {
                vue: "Vue",
                vuex: "Vuex",
                "vue-router": "VueRouter",
                "element-ui": "ELEMENT",
                devtool: "source-map"
            };
        } else {
            // 为开发环境修改配置...
            ("source-map");
        }
    },
    chainWebpack: config => {
        config.plugin("html").tap(args => {
            args[0].template = process.env.template;
            return args;
        });
        config.plugin('uselessFile').use(
            new UselessFile({
                root:'./src', //项目目录
                out: './fileList.json', //输出文件列表
                clean: false, //是否删除文件
                exclude: /node_modules/ //排除文件列表
            })
        );
    }
};