testophobia/lib/utils/image/retrieve-image-data.js

Web application snapshot tester

import fs from 'fs';
import {PNG} from 'pngjs';
import jpeg from 'jpeg-js';

/**
 * Get the image data for an image file on disk
 *
 * @param {string} path Path to the image file
 * @return {object} The iamge data object
 */
export const retrieveImageData = (path, fileType) => {
  try {
    const img = fs.readFileSync(path);
    return fileType === 'jpeg' ? jpeg.decode(img, true) : PNG.sync.read(img);
  } catch (err) {
    return 0;
  }
};