Refactored.

lib/inline-link-less.js

@@ -0,0 +1,58 @@
+var _ = require('lodash');
+var co = require('co');
+var cheerio = require('cheerio');
+var fs = require('mz/fs');
+var isLocalPath = require('is-local-path');
+var less = require('less');
+var path = require('path');
+var url = require('url');
+
+var render = co.wrap(function * (filepath, options) {
+	options = _.assign(options || {}, {
+		filename: filepath
+	});
+	var contents = yield fs.readFile(filepath, 'utf8');
+	var output = yield less.render(contents, options);
+	return output.css;
+});
+/**
+ * @params html
+ * 	HTML to inline
+ * @params options
+ * 	LESS compiler options
+ */
+var inline = co.wrap(function * (html, filepath, options) {
+	var basedir = path.dirname(filepath);
+	options = _.defaults(options || {}, {
+		relativeUrls: true
+	});
+
+	// TODO Import less links
+	// get links
+	var $ = cheerio.load(html);
+	var links = $('link[rel="stylesheet/less"]')
+		.filter(function (index, element) {
+			return isLocalPath($(element).attr('href'));
+		});
+
+	// render stylesheets
+	var contents = [];
+	links.each(function (index, element) {
+		var href = $(element).attr('href');
+		var filepath = path.resolve(basedir, href);
+		contents.push(render(filepath, options));
+	});
+	contents = yield contents;
+
+	// TODO for each content: convert css url path -> datauri
+	// can use inline-css-url
+
+	// replace links
+	links.each(function (index, element) {
+		var style = $('<style>').html(contents[index]);
+		$(element).replaceWith(style);
+	});
+
+	return $.html();
+});
+module.exports = inline;