config/literate: fix tangling on 'doom sync'

modules/config/literate/cli.el

@@ -0,0 +1,38 @@
+;;; config/literate/cli.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.")
+
+
+;;
+(defun +literate-tangle-h (&optional force-p)
+  "Tangles `+literate-config-file' if it has changed."
+  (let ((default-directory doom-private-dir))
+    (when (or (file-newer-than-file-p +literate-config-file
+                                      +literate-config-cache-file)
+              force-p)
+      (print! (start "Compiling your literate config..."))
+      (print-group!
+       (let* ((org  (expand-file-name +literate-config-file))
+              (dest (concat (file-name-sans-extension +literate-config-file) ".el"))
+              (output (get-buffer-create "*org-tangle*")))
+         (unwind-protect
+             ;; We tangle in a separate, blank process because loading it here
+             ;; would load all of :lang org (very expensive!).
+             (and (require 'ob-tangle)
+                  (letf! (defun message (msg &rest args)
+                           (print! (info "%s") (apply #'format msg args)))
+                    (org-babel-tangle-file org dest))
+                  ;; Write the cache file to serve as our mtime cache
+                  (with-temp-file +literate-config-cache-file))
+           (kill-buffer output)))))))
+
+
+;; Let 'er rip
+(add-hook 'doom-cli-pre-hook #'+literate-tangle)