47 lines
1.6 KiB
JavaScript
47 lines
1.6 KiB
JavaScript
import fsRoot from "fs";
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const fs = fsRoot.promises;
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import { rollup } from 'rollup';
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// needed for legacy bundle
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import babel from '@rollup/plugin-babel';
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// needed to find the polyfill modules in the main-legacy.js bundle
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import { nodeResolve } from '@rollup/plugin-node-resolve';
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// needed because some of the polyfills are written as commonjs modules
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import commonjs from '@rollup/plugin-commonjs';
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// multi-entry plugin so we can add polyfill file to main
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import multi from '@rollup/plugin-multi-entry';
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import removeJsComments from 'rollup-plugin-cleanup';
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// replace urls of asset names with content hashed version
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async function build(inputFile, outputFile) {
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// compile down to whatever IE 11 needs
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const babelPlugin = babel.babel({
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babelHelpers: 'bundled',
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exclude: '../../node_modules/**',
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presets: [
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[
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"@babel/preset-env",
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{
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useBuiltIns: "entry",
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corejs: "3",
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targets: "IE 11"
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}
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]
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]
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});
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const polyfillFile = '../../src/worker-polyfill.js';
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// create js bundle
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const rollupConfig = {
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input: [polyfillFile, inputFile],
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plugins: [multi(), commonjs(), nodeResolve(), babelPlugin, removeJsComments({comments: "none"})]
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};
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const bundle = await rollup(rollupConfig);
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const {output} = await bundle.generate({
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format: 'iife',
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name: `bundle`
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});
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const code = output[0].code;
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await fs.writeFile(outputFile, code, "utf8");
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}
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build(process.argv[2], process.argv[3]);
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