Question

I’m running the following code in my .emacs file:

(defun load-hooks ()
    (add-hook 'after-save-hook 'my-hook))

(add-hook 'c-mode-hook 'load-hooks)

(defun my-hook () ... )

However, the content in my-hook is running on save even when I’m in a different mode. Am I missing a step?

Answer 1

You should use the LOCAL argument to add-hook, which will make sure that the hook only affects the current buffer:

(defun load-hooks ()
  (add-hook 'after-save-hook 'my-hook nil t))

(add-hook 'c-mode-hook 'load-hooks)

(defun my-hook () ...)