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gnu: emacs: Factorize a ‘guix-emacs--subdirs-files’ procedure.

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* gnu/packages/aux-files/emacs/guix-emacs.el
(guix-emacs--subdirs-files): New procedure.
(guix-emacs-load-package-descriptors): Use it.

Signed-off-by: Liliana Marie Prikler <liliana.prikler@gmail.com>
This commit is contained in:
Maxim Cournoyer 2023-09-01 00:53:19 -04:00 committed by Liliana Marie Prikler
parent 16cc7b9678
commit d3bf08872b
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GPG key ID: 442A84B8C70E2F87
1 changed files with 20 additions and 14 deletions
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34
gnu/packages/aux-files/emacs/guix-emacs.el
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@ -3,7 +3,7 @@
;; Copyright © 2014, 2015, 2016, 2017 Alex Kost <alezost@gmail.com>
;; Copyright © 2017 Kyle Meyer <kyle@kyleam.com>
;; Copyright © 2019 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;; Copyright © 2019, 2023 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;; This file is part of GNU Guix.
@ -47,6 +47,13 @@ The files in the list do not have extensions (.el, .elc)."
(string-match-p "/share/emacs/site-lisp" dir))
load-path))
(defun guix-emacs--subdirs-files ()
"Return the Guix subdirs.el files found on the (non-core) load path."
(seq-filter #'file-exists-p
(mapcar (lambda (dir)
(expand-file-name "subdirs.el" dir))
(guix-emacs--non-core-load-path))))
;;;###autoload
(defun guix-emacs-autoload-packages ()
"Autoload Emacs packages found in EMACSLOADPATH.
@ -63,19 +70,18 @@ The files in the list do not have extensions (.el, .elc)."
;;;###autoload
(defun guix-emacs-load-package-descriptors ()
"Load descriptors for packages found in EMACSLOADPATH via subdirs.el."
(dolist (dir (guix-emacs--non-core-load-path))
(let ((subdirs-file (expand-file-name "subdirs.el" dir)))
(when (file-exists-p subdirs-file)
(with-temp-buffer
(insert-file-contents subdirs-file)
(goto-char (point-min))
(let ((subdirs (read (current-buffer))))
(and (equal (car-safe subdirs) 'normal-top-level-add-to-load-path)
(equal (car-safe (cadr subdirs)) 'list)
(dolist (subdir (cdadr subdirs))
(let ((pkg-dir (expand-file-name subdir dir)))
(when (file-directory-p pkg-dir)
(package-load-descriptor pkg-dir)))))))))))
(dolist (subdirs-file (guix-emacs--subdirs-files))
(with-temp-buffer
(insert-file-contents subdirs-file)
(goto-char (point-min))
(let ((subdirs (read (current-buffer))))
(and (equal (car-safe subdirs) 'normal-top-level-add-to-load-path)
(equal (car-safe (cadr subdirs)) 'list)
(dolist (subdir (cdadr subdirs))
(let ((pkg-dir (expand-file-name
subdir (file-name-directory subdirs-file))))
(when (file-directory-p pkg-dir)
(package-load-descriptor pkg-dir)))))))))
;; If emacs built with tree-sitter, read the value of the environment variable
;; to make tree-sitter grammars available in emacs out-of-the-box.