babel.config.js

/**
 * @file
 * @copyright 2020 Aleksej Komarov
 * @license MIT
 */

const createBabelConfig = (options) => {
  const { mode, presets = [], plugins = [] } = options;
  return {
    presets: [
      [
        require.resolve('@babel/preset-typescript'),
        {
          allowDeclareFields: true,
        },
      ],
      [
        require.resolve('@babel/preset-env'),
        {
          modules: 'commonjs',
          useBuiltIns: 'entry',
          corejs: '3',
          spec: false,
          loose: true,
          targets: [],
        },
      ],
      ...presets,
    ],
    plugins: [
      [
        require.resolve('@babel/plugin-transform-class-properties'),
        {
          loose: true,
        },
      ],
      require.resolve('@babel/plugin-transform-jscript'),
      require.resolve('babel-plugin-inferno'),
      require.resolve('babel-plugin-transform-remove-console'),
      require.resolve('common/string.babel-plugin.cjs'),
      ...plugins,
    ],
  };
};

module.exports = (api) => {
  api.cache(true);
  const mode = process.env.NODE_ENV;
  return createBabelConfig({ mode });
};

module.exports.createBabelConfig = createBabelConfig;