text: /**
   * Copyright 2020 The AMP HTML Authors. All Rights Reserved.
   *
   * Licensed 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 CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  'use strict';
  
  const argv = require('minimist')(process.argv.slice(2));
  const {
    VERSION: internalRuntimeVersion,
  } = require('../compile/internal-version');
  const {getImportResolverPlugin} = require('./import-resolver');
  const {getReplacePlugin} = require('./helpers');
  
  /**
   * Gets the config for babel transforms run during `amp build`.
   *
   * @return {!Object}
   */
  function getUnminifiedConfig() {
    const reactJsxPlugin = [
      '@babel/plugin-transform-react-jsx',
      {
        pragma: 'Preact.createElement',
        pragmaFrag: 'Preact.Fragment',
        useSpread: true,
      },
    ];
  
    const targets =
      argv.esm || argv.sxg ? {esmodules: true} : {browsers: ['Last 2 versions']};
    const presetEnv = [
      '@babel/preset-env',
      {
        bugfixes: true,
        modules: false,
        loose: true,
        targets,
      },
    ];
    const replacePlugin = getReplacePlugin();
    const unminifiedPlugins = [
      getImportResolverPlugin(),
      argv.coverage ? 'babel-plugin-istanbul' : null,
      replacePlugin,
      './build-system/babel-plugins/babel-plugin-transform-json-import',
      [
        './build-system/babel-plugins/babel-plugin-transform-internal-version',
        {version: internalRuntimeVersion},
      ],
      './build-system/babel-plugins/babel-plugin-transform-json-configuration',
      './build-system/babel-plugins/babel-plugin-transform-jss',
      './build-system/babel-plugins/babel-plugin-transform-fix-leading-comments',
      './build-system/babel-plugins/babel-plugin-transform-promise-resolve',
      '@babel/plugin-transform-react-constant-elements',
      '@babel/plugin-transform-classes',
      reactJsxPlugin,
    ].filter(Boolean);
    const unminifiedPresets = [presetEnv];
    return {
      compact: false,
      plugins: unminifiedPlugins,
      presets: unminifiedPresets,
      sourceMaps: 'inline',
    };
  }
  
  module.exports = {
    getUnminifiedConfig,
  };
  