Parse options and add docs

tasks/serve.js

@@ -8,8 +8,30 @@ var path = require('path');
 var url = require('url');
 
 var closure = require('closure-util');
+var nomnom = require('nomnom');
+
 var log = closure.log;
 
+var options = nomnom.options({
+  port: {
+    abbr: 'p',
+    default: 3000,
+    help: 'Port for incoming connections',
+    metavar: 'PORT'
+  },
+  loglevel: {
+    abbr: 'l',
+    choices: ['silly', 'verbose', 'info', 'warn', 'error'],
+    default: 'info',
+    help: 'Log level',
+    metavar: 'LEVEL'
+  }
+}).parse();
+
+
+/** @type {string} */
+log.level = options.loglevel;
+
 log.info('ol', 'Parsing dependencies ...');
 var manager = new closure.Manager({
   closure: true, // use the bundled Closure Library
@@ -40,8 +62,9 @@ manager.on('ready', function() {
       return main;
     }
   });
-  server.listen(3000, function() {
-    log.info('ol', 'Listening on http://localhost:3000/ (Ctrl+C to stop)');
+  server.listen(options.port, function() {
+    log.info('ol', 'Listening on http://localhost:' +
+        options.port + '/ (Ctrl+C to stop)');
   });
   server.on('error', function(err) {
     log.error('ol', 'Server failed to start: ' + err.message);