hunk.code_window:       })
         sourceStream.pipe(destinationStream)
       })
     })
     .then(() => {
       if (verify) {
  
hunk.labels: keep keep keep keep add keep
hunk.after_edit:     if (sourceMetadata.size == null) {
         // This is needed for compressed sources for which we don't know the uncompressed size:
         // After writing the image, we know the size.
         sourceMetadata.size = lastPosition
       }
  
hunk.file_path: lib/gui/modules/child-writer.js
hunk.type: add
file: /*
   * Copyright 2018 resin.io
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  'use strict'
  
  module.exports = function (ModalService, $q) {
    let modal = null
  
    /**
     * @summary Open the file selector widget
     * @function
     * @public
     *
     * @example
     * DriveSelectorService.open()
     */
    this.open = () => {
      modal = ModalService.open({
        name: 'file-selector',
        template: require('../templates/file-selector-modal.tpl.html'),
        controller: 'FileSelectorController as selector',
        size: 'file-selector-modal'
      })
    }
  
    /**
     * @summary Close the file selector widget
     * @function
     * @public
     *
     * @example
     * DriveSelectorService.close()
     */
    this.close = () => {
      if (modal) {
        modal.close()
      }
      modal = null
    }
  }
  