node jsonp wrapper for static json files

gistfile1.js

var express = require("express"),
	jsonp = require("connect-jsonp"),
	path = require('path'),
	argv = require('optimist').argv;


// delegation the way I like it
var delegate = function(proto, mixin){
	var o = Object.create(proto);
	if(mixin){
		for(var i in mixin) o[i] = mixin[i];
	}
	return o;
};

//
// set up config for the server,
// 	overriding defaults from argv
//
var appConfig = delegate({
// default project path is directory above this one
// use $0 --projectPath /somewhere/else to configure somewhere else
	projectPath : path.resolve(__dirname + "/.."),
	configFile: __dirname + "/my.conf",
	port: 80
}, argv);

var server = module.exports = express.createServer();

server.configure(function () {
	server.use(jsonp(true));
	server.use(express['static'](appConfig.projectPath));
});

if(require.main === module){
	server.listen(appConfig.port)
}