Method applyCustomTransforms

lib/broccoli/default-packager.js:308–332

(externalTree)

   * @return {BroccoliTree}
   */
  applyCustomTransforms(externalTree) {
    if (this._cachedTransformedTree === null) {
      this._cachedTransformedTree = externalTree;

      for (let customTransformEntry of this.customTransformsMap) {
        let transformName = customTransformEntry[0];
        let transformConfig = customTransformEntry[1];

        let transformTree = new Funnel(this._cachedTransformedTree, {
          files: transformConfig.files,
          annotation: `Funnel (custom transform: ${transformName})`,
        });

        this._cachedTransformedTree = mergeTrees(
          [this._cachedTransformedTree, transformConfig.callback(transformTree, transformConfig.options)],
          {
            annotation: `TreeMerger (custom transform: ${transformName})`,
            overwrite: true,
          }
        );
      }
    }

    return this._cachedTransformedTree;
  }

  /*
   * Returns a single tree with `ember-cli` internal files with the following