gistfile1.el

(defun tonini-ruby-execute-file ()
  "Executes the current Ruby file."
  (interactive)
  (if rspec-use-rvm
      (rvm-activate-corresponding-ruby))
  (setq current-file (buffer-file-name))
  (if (and current-file (file-exists-p current-file))
      (if (string-match "\\.rb$" current-file)
          (compile (concat "ruby -w " current-file))
        (message "%s is not a valid ruby file." current-file))
    (message "There is not valid file to execute.")))