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: "3.10",
          spec: false,
          loose: true,
          targets: [],
        },
      ],
      ...presets,
    ],
    plugins: [
      [
        require.resolve("@babel/plugin-proposal-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;