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iconify/iconify-icon-demo/lit-demo/rollup.config.js

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import nodeResolve from '@rollup/plugin-node-resolve';
import babel from '@rollup/plugin-babel';
import html from '@web/rollup-plugin-html';
import { importMetaAssets } from '@web/rollup-plugin-import-meta-assets';
import { terser } from 'rollup-plugin-terser';
import { generateSW } from 'rollup-plugin-workbox';
import path from 'path';
export default {
input: 'index.html',
output: {
entryFileNames: '[hash].js',
chunkFileNames: '[hash].js',
assetFileNames: '[hash][extname]',
format: 'es',
dir: 'dist',
},
preserveEntrySignatures: false,
plugins: [
/** Enable using HTML as rollup entrypoint */
html({
minify: true,
injectServiceWorker: true,
serviceWorkerPath: 'dist/sw.js',
}),
/** Resolve bare module imports */
nodeResolve(),
/** Minify JS */
terser(),
/** Bundle assets references via import.meta.url */
importMetaAssets(),
/** Compile JS to a lower language target */
babel({
babelHelpers: 'bundled',
presets: [
[
require.resolve('@babel/preset-env'),
{
targets: [
'last 3 Chrome major versions',
'last 3 Firefox major versions',
'last 3 Edge major versions',
'last 3 Safari major versions',
],
modules: false,
bugfixes: true,
},
],
],
plugins: [
[
require.resolve('babel-plugin-template-html-minifier'),
{
modules: { lit: ['html', { name: 'css', encapsulation: 'style' }] },
failOnError: false,
strictCSS: true,
htmlMinifier: {
collapseWhitespace: true,
conservativeCollapse: true,
removeComments: true,
caseSensitive: true,
minifyCSS: true,
},
},
],
],
}),
/** Create and inject a service worker */
generateSW({
globIgnores: ['polyfills/*.js', 'nomodule-*.js'],
navigateFallback: '/index.html',
// where to output the generated sw
swDest: path.join('dist', 'sw.js'),
// directory to match patterns against to be precached
globDirectory: path.join('dist'),
// cache any html js and css by default
globPatterns: ['**/*.{html,js,css,webmanifest}'],
skipWaiting: true,
clientsClaim: true,
runtimeCaching: [{ urlPattern: 'polyfills/*.js', handler: 'CacheFirst' }],
}),
],
};