grind-assets/lib/PostProcessors/CssMinifyPostProcessor.js

Asset management for Grind

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.CssMinifyPostProcessor = void 0;

var _PostProcessor = require("./PostProcessor.js");

var _optional = require("../Support/optional.js");

var _grindSupport = require("grind-support");

function _isnil(val) { return val === null || typeof val === 'undefined'; }

const CleanCSS = (0, _optional.optional)('clean-css', '>=4');

class CssMinifyPostProcessor extends _PostProcessor.PostProcessor {
  constructor(app, shouldOptimize, sourceMaps) {
    super(app, shouldOptimize, sourceMaps);
    this.supportedExtensions = ['css'];
    this.options = {};
    this.options = app.config.get('assets.post_processors.css.minify', {});

    if (typeof this.options.enabled === 'boolean') {
      this.shouldOptimize = this.options.enabled;
    }
  }

  process(sourcePath, targetPath, contents) {
    if (!this.shouldOptimize || sourcePath.indexOf('.min.') >= 0) {
      return Promise.resolve(contents);
    }

    if (!CleanCSS.resolve()) {
      return Promise.resolve(contents);
    }

    const options = Object.assign({}, this.options);

    if (this.sourceMaps === 'auto') {
      if (!_isnil(targetPath)) {
        options.sourceMap = true;
      } else {
        options.sourceMapInlineSources = true;
      }
    }

    return new Promise((resolve, reject) => {
      try {
        new CleanCSS.pkg(options).minify(contents, (err, result) => {
          if (!_isnil(err)) {
            return reject({
              file: sourcePath,
              message: err[0]
            });
          }

          if (_isnil(targetPath) || _isnil(result.sourceMap)) {
            return resolve(result.styles);
          }

          _grindSupport.FS.writeFile(`${targetPath}.map`, result.sourceMap).then(() => resolve(result.styles)).catch(reject);
        });
      } catch (err) {
        return reject(err);
      }
    });
  }

}

exports.CssMinifyPostProcessor = CssMinifyPostProcessor;
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dGhlbigoKSA9PiByZXNvbHZlKHJlc3VsdC5zdHlsZXMpKVxuXHRcdFx0XHRcdFx0LmNhdGNoKHJlamVjdClcblx0XHRcdFx0fSlcblx0XHRcdH0gY2F0Y2ggKGVycikge1xuXHRcdFx0XHRyZXR1cm4gcmVqZWN0KGVycilcblx0XHRcdH1cblx0XHR9KVxuXHR9XG59XG4iXX0=