Re: Install and load new emacs package without restarting it

[Mekeor Melire]

2023-05-04 12:38 andremegaf...@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!