Refactored.

lib/inline-img.js

@@ -0,0 +1,21 @@
+var cheerio = require('cheerio');
+var datauri = require('datauri');
+var isLocalPath = require('is-local-path');
+var path = require('path');
+
+var inline = function (html, filePath) {
+	var basedir = path.dirname(filePath);
+	var $ = cheerio.load(html);
+	var images = $('img').filter(function (index, element) {
+		return isLocalPath($(element).attr('src'));
+	});
+	images.each(function (index, element) {
+		var src = $(element).attr('src');
+		var filePath = path.resolve(basedir, src);
+		src = datauri(filePath);
+		$(element).attr('src', src);
+	});
+	return $.html();
+};
+
+module.exports = inline;