bug#55301: 27.2; RFE: Auto-create defcustom for declared minor mode keymap

[Phil Hudson]

On Wed, 18 May 2022 at 08:13, Robert Pluim <rpluim@gmail.com> wrote:
>
> >>>>> On Tue, 17 May 2022 19:27:14 +0200, Lars Ingebrigtsen <larsi@gnus.org> 
> >>>>> said:
>
>     Lars> Robert Pluim <rpluim@gmail.com> writes:
>     >> You mean using customize for keymaps? Iʼd say 'no', but Iʼm not an
>     >> Emacs maintainer.
>
>     Lars> Yes, adding a defcustom now for keymaps would be pointless.
>
>     Lars> But it'd be nice if a defcustom interface for keymaps existed.
>
> Something like this?
>
> (defcustom keymap-additions nil
> "Alist of bindings to add to keymaps at startup.
> Keys are keymap symbols, values are lists of conses, format
> (key-binding . command)
>
> Where KEY-BINDING is a kbd format key specification, and COMMAND is an
> Emacs command.")
>
> So you could have that be
>
> '((fundamental-mode-map . (("C-a" . mark-whole-buffer)
>                            ("C-b" . backward-word)))
>   (elisp-mode-map . (("C-a" . mark-defun))))

Exactly. It should include

    :type '(alist :key-type key-sequence :value-type function)

as I suggested 9 days ago in this thread.