bug#70949: display-buffer-choose-some-window

[Juri Linkov <juri@linkov.net>]

close 70949 30.0.50
thanks

>> Then let's install the first patch for (nil . ((some-window . mru)))
>> that is not so controversial.
>
> OK with me.

Very nice!  So the original patch is pushed, and now the OP can happily use:

  (setq display-buffer-base-action '(nil . ((some-window . mru))))

and I can use:

  (defvar-local display-buffer-last-window nil)
  (setq display-buffer-base-action
        '(nil . ((some-window
                  . (lambda (_buffer alist)
                      (let ((last-window (buffer-local-value
                                          'display-buffer-last-window
                                          (window-buffer))))
                        (or (and (window-live-p last-window) last-window)
                            (get-mru-window nil nil t))))))))
  (define-advice display-buffer-record-window (:after (type window buffer))
    (with-current-buffer (window-buffer)
      (setq-local display-buffer-last-window window)))

that works nicely even for showing buffers repeatedly
in the selected window.  And all commands are supported,
even to show diffs from vc-dir.