How to use rollup

rollup.js

import babel from 'rollup-plugin-babel';
import less from 'rollup-plugin-less';
import path from "path";
import includePaths from 'rollup-plugin-includepaths';
import nodeResolve from 'rollup-plugin-node-resolve';
import commonjs from 'rollup-plugin-commonjs';
import uglify from 'rollup-plugin-uglify';
import { minify } from 'uglify-js';


let includePathOptions = {
    include: {
        classNames: "classnames"
    },
    paths: ['./src/main/js/cerner/mpagedev/mpagefusion'],
    external: [],
    extensions: ['.js']
};

export default {
    entry: "./src/main/js/cerner/mpagedev/mpagefusion/api.js",
    dest: "./dist/fusion.js",
    format: 'umd',
    moduleName: "MPageFusion",
    plugins: [
        includePaths(includePathOptions),
        nodeResolve({
            jsnext: true,
            main: true,
            browser: true
        }),
        commonjs({
            include: './node_modules/**'
        }),
        babel({
            "presets": [
                [
                    "es2015",
                    {
                        "modules": false
                    }
                ]
            ],
            exclude: 'node_modules/**',
            plugins: [
                ["defines", { "VERSION": "1" }],
                ["transform-es2015-classes", { loose: true }]
            ]
        }),
        less({
            output: '',
            option: {
                //less render option
            }
        }),
        uglify({
            mangle: false
        })
    ]
}