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;;; km-buffer-cleanup.el --- Clean up buffer on save
;; Copyright (C) 2012-2016 Kyle Meyer <kyle@kyleam.com>
;; Author: Kyle Meyer <kyle@kyleam.com>
;; URL: https://github.com/kyleam/emacs.d
;; 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/>.
;;; Code:
(require 'whitespace)
(defvar-local km/prevent-cleanup nil
"If set, `km/cleanup-buffer' does not perform clean up on save.")
(defun km/toggle-prevent-cleanup ()
"Toggle state of `km/prevent-cleanup'."
(interactive)
(if km/prevent-cleanup
(progn
(message "Allowing cleanup on save")
(kill-local-variable 'whitespace-style)
(global-whitespace-mode 0)
(global-whitespace-mode 1))
(message "Preventing cleanup on save")
(setq-local whitespace-style
'(face trailing indentation
tab-mark space-mark newline-mark))
(global-whitespace-mode 0)
(global-whitespace-mode 1))
(setq km/prevent-cleanup (not km/prevent-cleanup)))
(defun km/cleanup-buffer ()
(interactive)
(unless km/prevent-cleanup
(whitespace-cleanup)
(delete-trailing-whitespace)))
(provide 'km-buffer-cleanup)
;;; km-buffer-cleanup.el ends here
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