completions.el

;;;; Restore the *Completions* window behavior of Emacs 24.

;; Based on https://emacs.stackexchange.com/a/21537
;; UPDATE: Turns out my previous solution could be radically simplified;
;; I was just using the wrong order for the 'display-buffer-*' functions.

(add-to-list 'display-buffer-alist
	     '("\\*Completions\\*"
	       (display-buffer-pop-up-window
		display-buffer-use-some-window)
	       (inhibit-same-window . t)
	       (window-height . ignore) ))

;; Avoid resizing the buffer.

(defadvice minibuffer-completion-help (around elmord/do-not-fit-window activate)
  (cl-letf (((symbol-function 'fit-window-to-buffer) #'ignore))
    ad-do-it))

(defadvice completion-at-point (around elmord/do-not-fit-window activate)
  (cl-letf (((symbol-function 'fit-window-to-buffer) #'ignore))
    ad-do-it))