tvl-depot/users/glittershark/emacs.d/nix.el
Griffin Smith 2ad67392a6 feat(gs/emacs): Set compile-command in nix buffers
When visiting buffers that represent home-manager or nixos modules, set
compile-command to the relevant switch command.

Change-Id: I565e092d1e6b97eb7fee9d88211c0ee6ebb30b53
Reviewed-on: https://cl.tvl.fyi/c/depot/+/846
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-02 18:55:31 +00:00

30 lines
939 B
EmacsLisp

;;; ~/code/depot/users/glittershark/emacs.d/nix.el -*- lexical-binding: t; -*-
(defun nix-buffer-type ()
"Returns:
'home-manager, if the current buffer is a home-manager module
'nixos, if the current buffer is a nixos module
nil, if none of the above are the case"
(when buffer-file-name
(pcase buffer-file-name
((rx (0+ nonl) "system/home" (0+ nonl) ".nix" eos)
'home-manager)
((rx (0+ nonl) "system/system" (0+ nonl) ".nix" eos)
'nixos))))
(defun set-nix-compile-command ()
"Set the compile command for the current buffer based on the type of nix
buffer it is, per `nix-buffer-type'"
(interactive)
(when-let ((btype (nix-buffer-type)))
(setq-local
compile-command
(case btype
('home-manager "home-manager switch")
('nixos "sudo nixos-rebuild switch")))))
(add-hook 'nix-mode-hook #'set-nix-compile-command)
(map! (:map nix-mode-map
(:n "g SPC" #'compile)))