RbxRefresh.js

var EXEC_FILE_LOCATION = process.argv[2]
var LUA_BINARY_NAME = process.argv[3] ? process.argv[3] : 'lua'

var chokidar = require('chokidar');
var fs = require('fs');
var http = require('http');
var exec = require('child_process').exec

var responses = []

http.createServer(function(req, res) {
	responses.push(res);
}).listen(8888, '0.0.0.0');

var watcher = chokidar.watch(EXEC_FILE_LOCATION + '\\src', {
	ignored: /[\/\\]\./,
	persistent: true
});

watcher.on('change', function(path) {
	if (path.indexOf('exec.lua') < 0) {
		console.log(path + ' changed; bulding...');
		exec(LUA_BINARY_NAME + ' "' + EXEC_FILE_LOCATION + '\\build.lua"', function(err, stdout, stderr) {
			if (err) return console.log(err);
			fs.readFile(EXEC_FILE_LOCATION + '\\exec.lua', 'utf8', function(err, data) {
				if (err) return console.log(err);
				while (responses.length) {
					var res = responses.shift();
					res.writeHead(200, {'Content-Type': 'text/plain'});
					res.end(data);
				}
			})
		})
	}
})

console.log('RbxRefresh running.');