Add files configuration

oni-files.el

@@ -0,0 +1,65 @@
+;;; oni-files.el --- File handling configuration     -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2017  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords: local
+;; Version: 20171207003147
+
+;; 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:
+
+;; This is the generic file handling configuration for Emacs. It sets
+;; the backup directory, automatic removal of trailing whitespace,
+;; auto save settings, ensuring a final newline in every file,
+;; versioned backups and time stamps.
+
+;;; Code:
+
+;;;###autoload(require 'oni-files)
+
+(defun oni-files--destroy-trailing-whitespace ()
+  "Delete trailing whitespace everywhere, except in Markdown buffers."
+  (if (not (eq major-mode 'markdown-mode))
+      (delete-trailing-whitespace)))
+
+(add-hook 'before-save-hook #'oni-files--destroy-trailing-whitespace)
+
+(add-hook 'before-save-hook 'time-stamp)
+
+(add-to-list 'auto-save-file-name-transforms
+             `(".*" ,(concat user-emacs-directory "data/auto-save-files/") t)
+             :append)
+
+(setq auto-save-list-file-prefix
+      (concat user-emacs-directory "data/auto-save-list/.saves-"))
+
+(setq backup-directory-alist
+      `((".*" . ,(concat user-emacs-directory "data/backup-files/"))))
+
+(setq delete-old-versions t)
+
+(setq kept-new-versions 20)
+
+(setq kept-old-versions 20)
+
+(setq require-final-newline t)
+
+(setq vc-make-backup-files t)
+
+(setq version-control t)
+
+(provide 'oni-files)
+;;; oni-files.el ends here