Buffer-locally overriding minor-mode key bindings in Emacs

Question

I want to use a minor mode which rebinds a major-mode key that I definitely want to keep. How can I rebind the key without deleting it from the minor-mode map globally? I kn

Answer 1

Here's a function to handle all the cumbersome bits.

(defun local-set-minor-mode-key (mode key def)
  "Overrides a minor mode keybinding for the local
   buffer, by creating or altering keymaps stored in buffer-local
   `minor-mode-overriding-map-alist'."
  (let* ((oldmap (cdr (assoc mode minor-mode-map-alist)))
         (newmap (or (cdr (assoc mode minor-mode-overriding-map-alist))
                     (let ((map (make-sparse-keymap)))
                       (set-keymap-parent map oldmap)
                       (push `(,mode . ,map) minor-mode-overriding-map-alist) 
                       map))))
    (define-key newmap key def)))

Thereafter you can do

(local-set-minor-mode-key ' (kbd "key-to-hide") nil)