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feat(gs/emacs): Set compile-command in nix buffers

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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>
This commit is contained in:
Griffin Smith 2020-07-02 14:54:28 -04:00 committed by glittershark
parent 2b4abca80f
commit 2ad67392a6
2 changed files with 31 additions and 0 deletions
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1
users/glittershark/emacs.d/config.el
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@ -27,6 +27,7 @@
(load! "github-org") (load! "github-org")
(load! "org-gcal") (load! "org-gcal")
(load! "grid") (load! "grid")
(load! "nix")
(require 's) (require 's)
(require 'tvl) (require 'tvl)

30
users/glittershark/emacs.d/nix.el Normal file
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@ -0,0 +1,30 @@
;;; ~/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)))