docusaurus/packages/docusaurus-cssnano-preset/src/index.ts

/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

import advancedBasePreset from 'cssnano-preset-advanced';
import postCssSortMediaQueries from 'postcss-sort-media-queries';
import postCssRemoveOverriddenCustomProperties from './remove-overridden-custom-properties';

const preset: typeof advancedBasePreset = function preset(opts) {
  const advancedPreset = advancedBasePreset({
    autoprefixer: {add: false},
    discardComments: {removeAll: true},
    ...opts,
  });

  advancedPreset.plugins.unshift(
    [postCssSortMediaQueries, undefined],
    [postCssRemoveOverriddenCustomProperties, undefined],
  );

  return advancedPreset;
};

export = preset;