doomemacs/modules/config/literate/autoload.el
2020-07-31 01:39:24 -04:00

63 lines
2.5 KiB
EmacsLisp

;;; config/literate/autoload.el -*- lexical-binding: t; -*-
(defvar +literate-config-file
(concat doom-private-dir "config.org")
"The file path of your literate config file.")
(defvar +literate-config-cache-file
(concat doom-cache-dir "literate-last-compile")
"The file path that `+literate-config-file' will be tangled to, then
byte-compiled from.")
;;;###autoload
(defun +literate-tangle-h ()
"Tangles `+literate-config-file' if it has changed."
(print! (start "Compiling your literate config..."))
(print-group!
(let* ((default-directory doom-private-dir)
(org (expand-file-name +literate-config-file))
(dest (concat (file-name-sans-extension +literate-config-file) ".el"))
(backup (make-temp-file "config.org.backup")))
(and (require 'ox)
(require 'ob-tangle)
(unwind-protect
(letf! ((defun message (msg &rest args)
(when msg
(print! (info "%s") (apply #'format msg args))))
;; Prevent infinite recursion due to recompile-on-save
;; hooks later.
(org-mode-hook nil))
;; Do the ol' switcheroo because `org-babel-tangle' writes
;; changes to the user's literate config, which would impose on
;; the user.
(copy-file org backup t)
(with-current-buffer (find-file-noselect org)
;; Tangling won't ordinarily expand #+INCLUDE directives, so
;; we do it ourselves.
(org-export-expand-include-keyword)
(org-babel-tangle nil dest))
t)
(ignore-errors (copy-file backup org t))
(ignore-errors (delete-file backup)))
;; Write an empty file to serve as our mtime cache
(with-temp-file +literate-config-cache-file)))))
;;;###autoload
(add-hook 'org-mode-hook #'+literate-enable-recompile-h)
;;;###autoload
(defalias '+literate/reload #'doom/reload)
;;;###autoload
(defun +literate-enable-recompile-h ()
"Enable literate-compiling-on-save in the current buffer."
(add-hook 'after-save-hook #'+literate-recompile-maybe-h nil 'local))
;;;###autoload
(defun +literate-recompile-maybe-h ()
"Recompile literate config to `doom-private-dir'.
We assume any org file in `doom-private-dir' is connected to your literate
config, and should trigger a recompile if changed."
(when (file-in-directory-p buffer-file-name doom-private-dir)
(+literate-tangle-h)))