Add a helpers library

This way different modules can use it without getting weird circular
dependencies.

1 files changed, 44 insertions, 0 deletions

diff --git a/emacs/.emacs.d/site-lisp/oni-helpers.el b/emacs/.emacs.d/site-lisp/oni-helpers.el
new file mode 100644
index 0000000..3b3ad99
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+++ b/emacs/.emacs.d/site-lisp/oni-helpers.el
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+;;; oni-helpers.el --- Helper functions for Emacs init  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2016  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: convenience
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Helpers for my Emacs init.
+
+;;; Code:
+
+(defun oni:data-location (file-name)
+  "Return the location of FILE-NAME within my data directory.
+    This is currently the data directory under the
+    `user-emacs-directory'."
+  (concat user-emacs-directory "data/" file-name))
+
+(with-eval-after-load 'ert
+  (ert-deftest oni:data-location ()
+    "Test that `oni:data-location' returns the correct locations."
+    (should (string= "~/.emacs.d/data/backup-files/"
+                     (oni:data-location "backup-files/")))
+    (should (string= "~/.emacs.d/data/auto-save-files/"
+                     (oni:data-location "auto-save-files/")))
+    (should (string= "~/.emacs.d/data/auto-save-list/.saves-"
+                     (oni:data-location "auto-save-list/.saves-")))))
+
+(provide 'oni-helpers)
+;;; oni-helpers.el ends here