func (cmd *Push) updateRoutes(routeActor actors.RouteActor, app models.Application, appParams models.AppParams, noHostName bool) {
defaultRouteAcceptable := len(app.Routes) == 0
routeDefined := appParams.Domain != nil || appParams.Host != nil || noHostName
domain := cmd.findDomain(appParams.Domain)
hostname := cmd.hostnameForApp(appParams.Host, appParams.UseRandomHostname, app.Name, noHostName)
if appParams.NoRoute {
cmd.removeRoutes(app, routeActor)
} else if routeDefined || defaultRouteAcceptable {
route := routeActor.FindOrCreateRoute(hostname, domain)
routeActor.BindRoute(app, route)
}
}
