web-dev-server.config.js

/*
 * Copyright 2023 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

/** Use Hot Module replacement by adding --hmr to the start command */
import copy from 'rollup-plugin-copy';

const hmr = process.argv.includes('--hmr');

export default /** @type {import('@web/dev-server').DevServerConfig} */ ({
  watch: !hmr,
  /** Resolve bare module imports */
  nodeResolve: {
    exportConditions: ['browser', 'development'],
  },

  /** Compile JS for older browsers. Requires @web/dev-server-esbuild plugin */
  // esbuildTarget: 'auto'

  /** Set appIndex to enable SPA routing */
  appIndex: './index.html',

  plugins: [
    /** Use Hot Module Replacement by uncommenting. Requires @open-wc/dev-server-hmr plugin */
    // hmr && hmrPlugin({ exclude: ['**/*/node_modules/**/*'], presets: [presets.litElement] }),
    copy({
      targets: [{ src: 'src/plugins/**/*', dest: './' },
        { src: 'src/utils/dom.js', dest: './' },
        { src: 'src/locales', dest: './' }],
      // set flatten to false to preserve folder structure
      flatten: false,
    }),
  ],
  // Cert can be generated with mkcert
  // http2: true,
  // sslKey: './certs/localhost-key.pem',
  // sslCert: './certs/localhost.pem',
});