const path = require('path') const babel = require('rollup-plugin-babel') const resolve = require('rollup-plugin-node-resolve') const pkg = require(path.resolve(__dirname, '../package.json')) const BUNDLE = process.env.BUNDLE === 'true' const year = new Date().getFullYear() let fileDest = 'bootstrap.js' const external = ['jquery', 'popper.js'] const plugins = [ babel({ exclude: 'node_modules/**', // Only transpile our source code externalHelpersWhitelist: [ // Include only required helpers 'defineProperties', 'createClass', 'inheritsLoose', 'defineProperty', 'objectSpread' ] }) ] const globals = { jquery: 'jQuery', // Ensure we use jQuery which is always available even in noConflict mode 'popper.js': 'Popper' } if (BUNDLE) { fileDest = 'bootstrap.bundle.js' // Remove last entry in external array to bundle Popper external.pop() delete globals['popper.js'] plugins.push(resolve()) } module.exports = { input: path.resolve(__dirname, '../js/src/index.js'), output: { banner: `/*! * Bootstrap v${pkg.version} (${pkg.homepage}) * Copyright 2011-${year} ${pkg.author} * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) */`, file: path.resolve(__dirname, `../dist/js/${fileDest}`), format: 'umd', globals, name: 'bootstrap' }, external, plugins }