gistfile1.js

Hub.init = function() {
	this.load_config (function() {
		this.start_server ();
	});
};

Hub.load_config = function(callback) {
	var config, locations, self = this;

	config = new HubConfig;
	locations = ["~/.diaptoval/config.json", "/etc/diaptoval/config.json"];

	// Continuation-passing style
	(function retry() {

		if (!locations.length) {
			console.error ("No configuration file found");
			return;
		}

		config.load_file (locations.shift (), function (success) {
			if (success) {
				self.config = config;
				callback.call (self);
			} else {
				retry ();
			}
		});

	})();
};