Unless the court orders the conduct of a hearing, judgment sought shall be rendered forthwith if the pleadings, supporting affidavits, depositions and admissions on file, show that, except as to the amount of damages, there is no genuine issue as to any material fact and that the moving party is entitled to judgment as a matter of law. Any action of the court on a motion for summary judgment shall not be subject of an appeal or petition for certiorari, prohibition or mandamus.