rollup.config.js

import replace from 'rollup-plugin-replace';
import { terser } from 'rollup-plugin-terser';
import { babel } from '@rollup/plugin-babel';
import minimist from 'minimist';
import vue from 'rollup-plugin-vue';
import alias from 'rollup-plugin-alias';
import PostCSS from 'rollup-plugin-postcss';
// import css from 'rollup-plugin-css-only';
//import nodeResolve from '@rollup/plugin-node-resolve';


const argv = minimist(process.argv.slice(2));

let vue_path = 'node_modules/vue/dist/vue.esm-browser.js';
if (argv && argv.prod) {
    vue_path = 'node_modules/vue/dist/vue.esm-browser.prod.js'
}

let buildFormat = {
    input: './http_src/ntopng.js',
    plugins: [
	// nodeResolve(),
	replace({
	    'process.env.NODE_ENV': JSON.stringify( 'production' )
	}),
	// vue({ css: true }),
	// css({ output: "test.css"}),
	// Process only `<style module>` blocks.
	vue(),
	PostCSS({
            modules: {
		generateScopedName: '[local]___[hash:base64:5]',
            },
            include: /&module=.*\.css$/,
	}),
	// Process all `<style>` blocks except `<style module>`.
	PostCSS({ include: /(?<!&module=.*)\.css$/ }),
	alias({
	    entries: [
		{ find: "vue", replacement: vue_path }
	    ]
	}),

    ],
    // external: ["vue", "Vue"],
    // globals: { vue: "Vue", },
    output: {
        file: './httpdocs/dist/ntopng.js',
        format: 'iife',
        name: 'ntopng',
	// globals: { vue: "Vue", },
	// exports: "auto",
	sourcemap: argv && argv.prod ? "inline" : false,
    },
    watch: {
	chokidar: {
	},
	exclude: ['node_modules/**']
    }
};
if (argv && argv.prod) {
    let babelPlugin = babel({
	extensions: ['.js', '.jsx', '.ts', '.tsx', '.vue'],
	babelHelpers: 'bundled'
    });
    let terserPlugin = terser({
        output: {
	    ecma: 5,
        },
    });

    buildFormat.plugins.push(babelPlugin);
    buildFormat.plugins.push(terserPlugin);
}
export default buildFormat;