9

How to kill (C-x k) ediff's (A,B,C) buffers automatically on each ediff-quit?

  • Did you really mean close the buffers, as opposed to closing the windows, i.e. usually going back to a single window showing a single file (but leaving the files open)? – Gilles Oct 12 '15 at 21:58
  • Yes, I mean kill buffers (C-x k) – denys Oct 13 '15 at 6:50
  • Why do you wish to do this? Often when I do an ediff I need to continue work on one of the buffers afterwards. – Andrew Swann Oct 16 '15 at 7:09
1
(defun my-kill-ediff-buffers ()
  (kill-buffer ediff-buffer-A)
  (kill-buffer ediff-buffer-B)
  (kill-buffer ediff-buffer-C))

(add-hook 'ediff-quit-hook 'my-kill-ediff-buffers)

Note that this will always kill ediff-buffers, even if they weren't opened by ediff e.g. you called ediff-buffers with some buffers you had open to start with.

If you want to you could also kill *ediff-errors*, *ediff-diff*, *Ediff-Registry* and *ediff-fine-diff* as well, but those generally don't bother me.

1

I'm adding an answer because this is the first link that popped up for me on this topic, and this is indeed way simpler.

You can pass a prefix to "q" and it will prompt to kill the ediff buffers.

C-u q

If you customize ediff-keep-variants it will reverse the behaviour: prompt to kill the buffers on exit and if use the prefix will leave them open.

(got this from the ediff manual)

0

You can try this hook:

 (add-hook 'ediff-load-hook
            (lambda ()
              (add-hook 'ediff-before-setup-hook
                        (lambda ()
                          (setq ediff-before-file (buffer-file-name))
                          (setq ediff-saved-window-configuration (current-window-configuration))))
              (let ((restore-window-configuration
                     (lambda ()
                       (set-window-configuration ediff-saved-window-configuration))))
                (add-hook 'ediff-quit-hook restore-window-configuration 'append)
                (add-hook 'ediff-suspend-hook restore-window-configuration 'append))))
  • 2
    It is not recommended to bind lambda functions to hooks (and advices). It makes reviewing the hook variables and removing functions from hooks painful. – Kaushal Modi Oct 12 '15 at 21:00
  • 2
    This effectively closes the windows, but the question is asking to kill the buffers. – Gilles Oct 13 '15 at 12:15
0

This is what I am using to close the windows:

(add-hook 'ediff-after-quit-hook-internal 'winner-undo)
  • 1
    This effectively closes the windows, but the question is asking to kill the buffers. – Gilles Oct 13 '15 at 12:15
0

I'm using this code (GNU Emacs 25.3.1 x86_64-pc-linux-gnu), following https://emacs.stackexchange.com/a/17089/18662

As stated in the GNU Emacs Manual regarding ediff-quit-hook (https://www.gnu.org/software/emacs/manual/html_node/ediff/Hooks.html):

Keep in mind that hooks executing before ediff-cleanup-mess start in ediff-control-buffer; they should also leave ediff-control-buffer as the current buffer when they finish. Hooks that are executed after ediff-cleanup-mess should expect the current buffer be either buffer A or buffer B.

So, I kill also the *Ediff Control Panel* buffer. Other ediff buffers may be added too.

(setq ediff-window-setup-function 'ediff-setup-windows-plain)
(setq ediff-split-window-function 'split-window-horizontally)

(defvar q-ediff-last-windows nil)

(defun q-store-pre-ediff-winconfig ()
    (setq q-ediff-last-windows (current-window-configuration)))

(defun q-restore-pre-ediff-winconfig ()
    (progn
       (set-window-configuration q-ediff-last-windows)
       (ediff-kill-buffer-carefully "*Ediff Control Panel*")))

(add-hook 'ediff-before-setup-hook #'q-store-pre-ediff-winconfig)
(add-hook 'ediff-quit-hook #'q-restore-pre-ediff-winconfig)

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.