Add stylesheet option

closes #2

index.js

@@ -41,7 +41,7 @@ var defaultTemplate = join(__dirname, 'public', 'directory.html');
  * Stylesheet.
  */
 
-var stylesheet = join(__dirname, 'public', 'style.css');
+var defaultStylesheet = join(__dirname, 'public', 'style.css');
 
 /**
  * Media types and the map for content negotiation.
@@ -93,7 +93,8 @@ exports = module.exports = function directory(root, options){
     , view = options.view || 'tiles'
     , filter = options.filter
     , root = normalize(root + sep)
-    , template = options.template || defaultTemplate;
+    , template = options.template || defaultTemplate
+    , stylesheet = options.stylesheet || defaultStylesheet;
 
   return function directory(req, res, next) {
     if ('GET' != req.method && 'HEAD' != req.method) return next();
@@ -131,7 +132,7 @@ exports = module.exports = function directory(root, options){
 
         // not acceptable
         if (!type) return next(createError(406));
-        exports[mediaType[type]](req, res, files, next, originalDir, showUp, icons, path, view, template);
+        exports[mediaType[type]](req, res, files, next, originalDir, showUp, icons, path, view, template, stylesheet);
       });
     });
   };
@@ -141,7 +142,7 @@ exports = module.exports = function directory(root, options){
  * Respond with text/html.
  */
 
-exports.html = function(req, res, files, next, dir, showUp, icons, path, view, template){
+exports.html = function(req, res, files, next, dir, showUp, icons, path, view, template, stylesheet){
   fs.readFile(template, 'utf8', function(err, str){
     if (err) return next(err);
     fs.readFile(stylesheet, 'utf8', function(err, style){

test/shared/styles.css

@@ -0,0 +1,3 @@
+body {
+	color: #00ff00;
+}

test/test.js

@@ -161,6 +161,26 @@ describe('directory()', function(){
     });
   });
 
+  describe('when setting a custom stylesheet', function () {
+    var server;
+    before(function () {
+      server = createServer('test/fixtures', {'stylesheet': __dirname + '/shared/styles.css'});
+    });
+    after(function (done) {
+      server.close(done);
+    });
+
+    it('should respond with appropriate embedded styles', function (done) {
+      request(server)
+      .get('/')
+      .set('Accept', 'text/html')
+      .expect(200)
+      .expect('Content-Type', /html/)
+      .expect(/color: #00ff00;/)
+      .end(done);
+    });
+  });
+
   describe('when set with trailing slash', function () {
     var server;
     before(function () {