Re: Sincronise eshell directory to file

[Andreas Politz]

Lorenzo Isella wrote:
> Dear All,
> My typical working pattern in emacs is to have an eshell + a buffer
> (showing one of the program I intend to modify).
> I switch between several of these code buffers and it would be very
> useful for me to automatically change directory (within eshell) to the
> one corresponding to the file I am visiting though the buffer.
> Does anyone know how this can be achieved?
> Cheers
>
> Lorenzo


Here is a basic solution which uses `window-configuration-change-hook'.
What's left is getting eshell to play along, change the prompt and
handle partial input for example.

(defun eshell-follow-dir-hook nil
  (when (not (eq major-mode 'eshell-mode))
    (let ((pwd default-directory))
      (walk-windows #'(lambda (win)
                        (with-selected-window win
                          (when (and (eq major-mode 'eshell-mode)
                                     (not (equal pwd default-directory)))
                            (cd pwd))))
                    'no-minibuffer))))

(add-hook 'window-configuration-change-hook 'eshell-follow-dir-hook)


-ap