fix: #7071 buildSkinAsset won't rebuild continuously

src/meta/css.js

@@ -206,7 +206,9 @@ CSS.buildBundle = function (target, fork, callback) {
 		function (bundle, next) {
 			var filename = target + '.css';
 
-			fs.writeFile(path.join(__dirname, '../../build/public', filename), bundle.code, next);
+			fs.writeFile(path.join(__dirname, '../../build/public', filename), bundle.code, function (err) {
+				next(err, bundle.code);
+			});
 		},
 	], callback);
 };

src/middleware/index.js

@@ -217,11 +217,14 @@ middleware.buildSkinAsset = function (req, res, next) {
 		async.waterfall([
 			async.apply(plugins.prepareForBuild, ['client side styles']),
 			async.apply(meta.css.buildBundle, target[0], true),
-			function (next) {
+		], function (err, css) {
+			if (err) {
+				return next();
+			}
+
 			require('../meta/minifier').killAll();
-				next();
-			},
-		], next);
+			res.status(200).type('text/css').send(css);
+		});
 	} else {
 		setImmediate(next);
 	}

src/routes/index.js

@@ -159,11 +159,6 @@ function addCoreRoutes(app, router, middleware, callback) {
 		statics.unshift({ route: '/assets/uploads', path: nconf.get('upload_path') });
 	}
 
-	// Skins
-	meta.css.supportedSkins.forEach(function (skin) {
-		app.use(relativePath + '/assets/client-' + skin + '.css', middleware.buildSkinAsset);
-	});
-
 	statics.forEach(function (obj) {
 		app.use(relativePath + obj.route, middleware.trimUploadTimestamps, express.static(obj.path, staticOptions));
 	});
@@ -171,6 +166,11 @@ function addCoreRoutes(app, router, middleware, callback) {
 		res.redirect(relativePath + '/assets/uploads' + req.path + '?' + meta.config['cache-buster']);
 	});
 
+	// Skins
+	meta.css.supportedSkins.forEach(function (skin) {
+		app.use(relativePath + '/assets/client-' + skin + '.css', middleware.buildSkinAsset);
+	});
+
 	// only warn once
 	var warned = new Set();