I'd like to occasionally use hg split and hg commit --interactive from Emacs, but those commands bring up a GUI. At the moment I either use a separate terminal or ansi-term for those, but would like to do it in more organic way.

Probably the minimal ideal interface would be a function like this:

(defun run-terminal-app cmd args &optional callback)

I have rough ideas how to implement this, e.g.:

  1. put a command with args into a temporary shell file
  2. launch (ansi-term temp-shell-file some-special-buffer-name)
  3. add a term-exec-hook to wait for exit in a some-special-bufer-name, then running a callback, killing a buffer, and removing a hook

But maybe I am just missing something and this is already implemented in some package, or even out of the box?

1 Answer 1


Something like this?

(defvar run-terminal-app-history nil)
(defun run-terminal-app (command &optional name)
  "Runs COMMAND in a `term' buffer."
   (list (read-from-minibuffer "$ " nil nil nil 'run-terminal-app-history)))
  (let* ((name (or name command))
         (switches (split-string-and-unquote command))
         (command (pop switches))
         (termbuf (apply 'make-term name command nil switches))
         (proc (get-buffer-process termbuf)))
    (set-process-query-on-exit-flag proc nil)
     proc (lambda (process signal)
            (and (memq (process-status process) '(exit signal))
                 (buffer-live-p (process-buffer process))
                 (kill-buffer (process-buffer process)))))
    (set-buffer termbuf)
    (switch-to-buffer termbuf)))
  • Fantastic! To make hg commit --interactive without -m switch working I just needed to wrap it with with-editor Feb 13, 2019 at 10:06
  • Ah, nice. I've never done anything custom using with-editor myself, and now I wish I'd previously looked at just how easy and convenient it is. Thanks for mentioning.
    – phils
    Feb 14, 2019 at 0:56

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