Add config/private; for ~/.doom.d & ~/.config/doom support #406

A modules/ submodule will be symlinked to ~/.emacs.d/modules/private.

modules/config/private/init.el

@@ -0,0 +1,25 @@
+;;; config/private/init.el -*- lexical-binding: t; -*-
+
+(defvar +private-config-path
+  (if (featurep! +xdg)
+      (expand-file-name "doom/" (or (getenv "XDG_CONFIG_HOME") "~/.config"))
+    "~/.doom.d")
+  "The directory that serves as the root of your external private config for
+Doom Emacs.")
+
+(defvar +private-modules-path
+  (expand-file-name "modules/" +private-config-path)
+  "The path to your private, external modules. This will be symlinked to
+external/ in `doom-modules-dir'.")
+
+(defvar +private-module-prefix "private"
+  "TODO")
+
+;; Ensure `doom//reload-autoloads', `doom//byte-compile' and
+;; `doom-initialize-packages' all include this module in their operations.
+(add-to-list 'doom-extra-module-paths +private-config-path)
+
+;;
+(load (expand-file-name "init.el" +private-config-path)
+      'noerror 'nomessage)
+