proof-of-concept for hot-swapping of routes

src/plugins.js

@@ -6,13 +6,18 @@ var fs = require('fs'),
 	winston = require('winston'),
 	nconf = require('nconf'),
 	semver = require('semver'),
+	express = require('express'),
 
 	db = require('./database'),
 	emitter = require('./emitter'),
 	meta = require('./meta'),
 	translator = require('../public/src/translator'),
 	utils = require('../public/src/utils'),
-	pkg = require('../package.json');
+	hotswap = require('./hotswap'),
+	pkg = require('../package.json'),
+
+	controllers = require('./controllers'),
+	app, middleware;
 
 (function(Plugins) {
 
@@ -57,6 +62,12 @@ var fs = require('fs'),
 		});
 	};
 
+	Plugins.prepareApp = function(nbbApp, nbbMiddleware) {
+		app = nbbApp;
+		middleware = nbbMiddleware;
+		hotswap.prepare(nbbApp);
+	};
+
 	Plugins.ready = function(callback) {
 		if (!Plugins.initialized) {
 			emitter.once('plugins:loaded', callback);
@@ -107,10 +118,29 @@ var fs = require('fs'),
 				});
 
 				next();
-			}
+			},
+			async.apply(Plugins.reloadRoutes)
 		], callback);
 	};
 
+	Plugins.reloadRoutes = function(callback) {
+		if (!app || !middleware || !controllers) {
+			return;
+		} else {
+			var router = express.Router();
+			router.hotswapId = 'plugins';
+
+			// Deprecated as of v0.5.0, remove this hook call for NodeBB v0.6.0-1
+			Plugins.fireHook('action:app.load', router, middleware, controllers);
+
+			Plugins.fireHook('static:app.load', router, middleware, controllers, function() {
+				hotswap.replace('plugins', router);
+			});
+
+			callback();
+		}
+	};
+
 	Plugins.loadPlugin = function(pluginPath, callback) {
 		fs.readFile(path.join(pluginPath, 'plugin.json'), function(err, data) {
 			if (err) {