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50 lines
1.7 KiB
EmacsLisp
50 lines
1.7 KiB
EmacsLisp
;;; display-hard-drive-space-mode.el --- -*- lexical-binding: t -*-
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;; Copyright (C) 2020 Benson Chu
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;; Author: Benson Chu <bensonchu457@gmail.com>
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;; Created: [2020-01-25 08:37]
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;; This file is not part of GNU Emacs
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;; This program is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(defvar update-harddrive-timer nil)
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(defvar hard-drive-space "")
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(defun get-hard-drive-space ()
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(let ((default-directory "/"))
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(shell-command-to-string "df -h -P -l / | tail -n 1 | tr -s ' ' | cut -d ' ' -f 4 | tr -d '\n'")))
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(defun update-hard-drive-space-string ()
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(->> (get-hard-drive-space)
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(format "[%s]")
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(setq hard-drive-space)))
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(define-minor-mode display-hard-drive-space-mode ""
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:global t
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(cond (display-hard-drive-space-mode
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(add-to-list 'global-mode-string 'hard-drive-space t)
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(setq update-harddrive-timer
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(run-at-time nil 15 'update-hard-drive-space-string)))
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(t
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(cancel-timer update-harddrive-timer)
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(setq global-mode-string
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(delq 'hard-drive-space global-mode-string)))))
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(provide 'display-hard-drive-space-mode)
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;;; display-hard-drive-space-mode.el ends here
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