67 lines
2.5 KiB
EmacsLisp
67 lines
2.5 KiB
EmacsLisp
;;; 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:
|
|
|
|
(defmacro silently (title &rest body)
|
|
"Only output something when an error occurs.
|
|
Prefix with TITLE any output that occurs while executing BODY,
|
|
but only when an error occurs, otherwise discard it."
|
|
(declare (indent 1))
|
|
(let ((buffer-var (cl-gensym))
|
|
(error-var (cl-gensym)))
|
|
`(with-temp-buffer
|
|
(let ((,buffer-var (current-buffer)))
|
|
(cl-letf (((symbol-function 'message)
|
|
(lambda (msg &rest args)
|
|
(with-current-buffer ,buffer-var
|
|
(insert " " (apply 'format msg args) "\n")))))
|
|
(condition-case ,error-var
|
|
(progn ,@body)
|
|
(error
|
|
(princ ,(concat title " output:\n"))
|
|
(princ (with-current-buffer ,buffer-var (buffer-string)))
|
|
(princ "Error:\n")
|
|
(princ " ")
|
|
(princ (cadr ,error-var))
|
|
(princ "\n"))))))))
|
|
|
|
(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
|