rollup-prod.config.js

import defaultConfig from './rollup.config.js';
import copy from 'rollup-plugin-copy';
import del from 'rollup-plugin-delete';
import license from 'rollup-plugin-license';
import terser from '@rollup/plugin-terser';
import path from 'path';
import { generateSW } from 'rollup-plugin-workbox';
import { workboxConfig } from './workbox-config.js';
import {fileURLToPath} from 'node:url';

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

// Files to remove before doing new src
const deleteConfig = {
  targets: ['src/*']
};

// Extract license comments in separate file LICENSE.txt
const licenseConfig = {
  thirdParty: {
    output: path.join(__dirname, 'src', 'LICENSE.txt'),
    includePrivate: true
  }
};

// Used for minify JS
const terserConfig = {
  format: {
    comments: false
  }
};

// Extra files to copy in src directory ./src
const copyConfig = {
  targets: [
    { src: 'manifest.json', dest: 'src' },
    { src: 'version.json', dest: 'src' },
    { src: 'upgrade-browser.html', dest: 'src' },
    { src: 'assets', dest: 'src' },
    { src: 'index.html', dest: 'src' }
  ]
};

const config = {
  ...defaultConfig,
  plugins: [
    del(deleteConfig),
    ...defaultConfig.plugins,
    license(licenseConfig),
    terser(terserConfig),
    copy(copyConfig),
    generateSW(workboxConfig)
  ],
  preserveEntrySignatures: false
};

export default config;