code: function getExcerptByFirstParagraph(file) {
      var $ = cheerio.load(file.contents.toString(), {decodeEntities: false}),
          p = $('p').first(),
          excerpt = p.length ? p.html().trim() : false;
      if (excerpt) {
          excerpt = v.unescapeHtml(excerpt);
      }
      return excerpt;
  }
docs: retrieve excerpt from file object by extracting the first p's contents
  
  @param  {Object} file file object
  @return {mixed}       excerpt string or false