koa-reload.js

// -----------------------------------------------------------------------------
// Server
// -----------------------------------------------------------------------------

var listen = function () {
  var server = HTTP.createServer();
  server.listen(process.env.PORT || 8000, "0.0.0.0", function () {
    console.log(`Starting HTTP server on ${this._connectionKey}...`);
    function attach() {
      app.middleware = require("./stack");
      var handler = app.callback();
      server.addListener("request", handler);
    }
    attach();
    FS.watchFile("stack.js", function () {
      console.log("Reload!");
      server.removeListener("request", handler);
      delete require.cache[require.resolve("./stack")];
      attach();
    });
  });
  return server;
};

listen();