babel.config.js

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2021 Looker Data Sciences, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

module.exports = (api) => {
    api.cache(true)

    return {
      presets: [
        [
          '@babel/env',
          {
            targets: {
              esmodules: true,
            },
            modules: false,
          },
        ],
        [
          '@babel/preset-react',
          {
            development: process.env.BABEL_ENV !== 'build',
          },
        ],
        '@babel/preset-typescript',
      ],
      env: {
        build: {
          ignore: [
            '**/*.d.ts',
            '**/*.test.js',
            '**/*.test.jsx',
            '**/*.test.ts',
            '**/*.test.tsx',
            '__snapshots__',
            '__tests__',
          ],
        },
      },
      ignore: ['node_modules'],
      plugins: [
        '@babel/plugin-proposal-class-properties',
        '@babel/plugin-proposal-object-rest-spread',
        '@babel/plugin-transform-runtime',
        'babel-plugin-styled-components',
      ],
    }
  }