code: function _checksums(dir) {
    const checksums = {};
  
    glob.sync(resolve(dir, '**/!(*.pack.+(s[ac]ss|js))'), { mark: true }).forEach((file) => {
      if (Utils.endsWith(file, '/')) { return; }
  
      const relativePath = relative(dir, file);
      checksums[relativePath] = Utils.checksum(file);
    });
  
    return checksums;
  }
docs: Generates a legend of file paths to checksums
  
  @param {string} dir
  @return {Object}