Re: Install and load new emacs package without restarting it

[Mekeor Melire <mekeor@posteo.de>]

2023-05-04 12:38 andremegafone@gmail.com:

> Hi Guix,

Hello!

> I'm wondering whether it's possible to install an emacs package 
> and
> enable it without restarting emacs.
>
> What I've tried:
>
> - $ guix install emacs-nix-mode
> - Locate 
> /gnu/store/...emacs-nix-mode/share/emacs/site-lisp/nix-mode
> - Run command dired-do-load from the directory above
>
> Unfortunately it doesn't quite work.  It did load the package, 
> but it
> prints the following error when trying to enable the mode.
>
> execute-extended-command: Cannot open load file: No such file or 
> directory, nix-mode

I'm not very familiar with dired-do-load, but I guess, it loads 
the elisp-files sequentially or so. So, one of those files tries 
to load/require "nix-mode" but that file/feature has not been 
loaded yet.

Instead, you can try one of these approaches: After installing 
emacs-nix-mode, type either:

    M-: (load 
    "~/.guix-profile/share/emacs/site-lisp/nix-mode.../nix-mode.el") 
    RET

Or:

    M-: (add-to-list 'load-path 
    "~/.guix-profile/share/emacs/site-lisp/nix-mode.../nix-mode.el") 
    RET
    M-: (require 'nix-mode) RET

Or, if you have emacs-guix installed, you could try:

    M-x guix-emacs-autoload-packages RET

Good luck!