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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,53 +1,109 @@ | ||
| // Import rollup plugins | ||
| import {rollupPluginHTML} from '@web/rollup-plugin-html'; | ||
| import {polyfillsLoader} from '@web/rollup-plugin-polyfills-loader'; | ||
| import {copy} from '@web/rollup-plugin-copy'; | ||
| import resolve from '@rollup/plugin-node-resolve'; | ||
| // import {getBabelOutputPlugin} from '@rollup/plugin-babel'; | ||
| import {getBabelOutputPlugin} from '@rollup/plugin-babel'; | ||
| import {terser} from 'rollup-plugin-terser'; | ||
| import minifyHTML from 'rollup-plugin-minify-html-literals'; | ||
| import summary from 'rollup-plugin-summary'; | ||
| import {terser} from 'rollup-plugin-terser'; | ||
|
|
||
| function onwarn(warning) { | ||
| if (warning.code !== 'THIS_IS_UNDEFINED') { | ||
| console.error(`(!) ${warning.message}`); | ||
| } | ||
| } | ||
| // Configure an instance of @web/rollup-plugin-html | ||
| const htmlPlugin = rollupPluginHTML({ | ||
| rootDir: './', | ||
| flattenOutput: false, | ||
| }); | ||
|
|
||
| export default { | ||
| input: 'src/alwatr-pwa.js', | ||
| treeshake: true, | ||
| // Entry point for application build; can specify a glob to build multiple | ||
| // HTML files for non-SPA app | ||
| input: 'index.html', | ||
| plugins: [ | ||
| htmlPlugin, | ||
| // Resolve bare module specifiers to relative paths | ||
| resolve(), | ||
| // Minify HTML template literals | ||
| minifyHTML.default(), | ||
| // Minify JS | ||
| terser({ | ||
| compress: true, | ||
| ecma: 2018, | ||
| module: true, | ||
| warnings: true, | ||
| format: { | ||
| comments: false, | ||
| }), | ||
| // Inject polyfills into HTML (core-js, regnerator-runtime, webcoponents, | ||
| // lit/polyfill-support) and dynamically loads modern vs. legacy builds | ||
| polyfillsLoader({ | ||
| modernOutput: { | ||
| name: 'modern', | ||
| }, | ||
| mangle: { | ||
| properties: { | ||
| regex: /^__/, | ||
| }, | ||
| // Feature detection for loading legacy bundles | ||
| legacyOutput: { | ||
| name: 'legacy', | ||
| test: '!!Array.prototype.flat', | ||
| type: 'systemjs', | ||
| }, | ||
| // List of polyfills to inject (each has individual feature detection) | ||
| polyfills: { | ||
| hash: true, | ||
| coreJs: true, | ||
| regeneratorRuntime: true, | ||
| fetch: true, | ||
| webcomponents: true, | ||
| // Custom configuration for loading Lit's polyfill-support module, | ||
| // required for interfacing with the webcomponents polyfills | ||
| custom: [ | ||
| { | ||
| name: 'lit-polyfill-support', | ||
| path: 'node_modules/lit/polyfill-support.js', | ||
| test: "!('attachShadow' in Element.prototype)", | ||
| module: false, | ||
| }, | ||
| ], | ||
| }, | ||
| }), | ||
| // Print bundle summary | ||
| summary(), | ||
| // Optional: copy any static assets to build directory | ||
| copy({ | ||
| patterns: ['images/**/*'], | ||
| }), | ||
| ], | ||
| // Specifies two JS output configurations, modern and legacy, which the HTML plugin will | ||
| // automatically choose between; the legacy build is compiled to ES5 | ||
| // and SystemJS modules | ||
| output: [ | ||
| { | ||
| // Modern JS bundles (no JS compilation, ES module output) | ||
| format: 'esm', | ||
| chunkFileNames: '[name]-[hash].js', | ||
| entryFileNames: '[name]-[hash].js', | ||
| dir: 'build', | ||
| plugins: [htmlPlugin.api.addOutput('modern')], | ||
| }, | ||
| { | ||
| // Legacy JS bundles (ES5 compilation and SystemJS module output) | ||
| format: 'esm', | ||
| entryFileNames: '[name].esm.js', | ||
| chunkFileNames: 'legacy-[name]-[hash].js', | ||
| entryFileNames: 'legacy-[name]-[hash].js', | ||
| dir: 'build', | ||
| plugins: [ | ||
| htmlPlugin.api.addOutput('legacy'), | ||
| // Uses babel to compile JS to ES5 and modules to SystemJS | ||
| getBabelOutputPlugin({ | ||
| compact: true, | ||
| presets: [ | ||
| [ | ||
| '@babel/preset-env', | ||
| { | ||
| targets: { | ||
| ie: '11', | ||
| }, | ||
| modules: 'systemjs', | ||
| }, | ||
| ], | ||
| ], | ||
| }), | ||
| ], | ||
| }, | ||
| // { | ||
| // dir: 'build', | ||
| // format: 'esm', | ||
| // entryFileNames: '[name].es5.js', | ||
| // plugins: [ | ||
| // getBabelOutputPlugin({ | ||
| // compact: true, | ||
| // presets: [['@babel/preset-env', {modules: 'systemjs'}]] | ||
| // }), | ||
| // ] | ||
| // }, | ||
| ], | ||
| preserveEntrySignatures: false, | ||
| }; |
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