postcss-clean/index.js

PostCSS plugin to minify CSS with clean-css

'use strict';

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var postcss = _interopDefault(require('postcss'));
var CleanCss = _interopDefault(require('clean-css'));

var initializer = function (opts) {
  if ( opts === void 0 ) opts = {};

  var cleancss = new CleanCss(opts);

  return function (css, res) {
    return new Promise(function (resolve, reject) {
      cleancss.minify(css.toString(), function (err, min) {
        if (err) {
          return reject(new Error(err.join('\n')))
        }

        for (var i = 0, list = min.warnings; i < list.length; i += 1) {
          var w = list[i];

          res.warn(w);
        }

        res.root = postcss.parse(min.styles);
        resolve();
      });
    })
  }
};

var index_m = postcss.plugin('clean', initializer);

module.exports = index_m;