babel.config.js

/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2019 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 => {
  var isTest = api.cache(() => process.env.NODE_ENV === "test")

  return {
    ignore: ['node_modules'],
    env: {
      build: {
        ignore: [
          '**/*.d.ts',
          '**/*.test.js',
          '**/*.test.jsx',
          '**/*.test.ts',
          '**/*.test.tsx',
          '__snapshots__',
          '__tests__',
        ],
      },
    },
    presets: [
      ['@babel/preset-env',
        {targets: {
            browsers: 'Last 2 Chrome versions, Firefox ESR',
            node: '8.9'}}],
      ['@babel/preset-react', {development: process.env.BABEL_ENV !== 'build'}],
      '@babel/preset-typescript'
    ],
    plugins: [
      '@babel/plugin-proposal-class-properties',
      '@babel/plugin-proposal-object-rest-spread',
      '@babel/plugin-transform-runtime',
      '@babel/plugin-proposal-optional-chaining',
      '@babel/plugin-proposal-nullish-coalescing-operator',
      'babel-plugin-styled-components',
      'react-hot-loader/babel'
    ],
  }
}