;;; midnight.el --- run something every midnight, e.g., kill old buffers
-;;; Copyright (C) 1998, 2004, 2005 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 2001-2013 Free Software Foundation, Inc.
-;; Author: Sam Steingold <sds@usa.net>
-;; Maintainer: Sam Steingold <sds@usa.net>
+;; Author: Sam Steingold <sds@gnu.org>
+;; Maintainer: Sam Steingold <sds@gnu.org>
;; Created: 1998-05-18
;; Keywords: utilities
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs 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 2, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
-(eval-when-compile
- (require 'cl))
-
-(require 'timer)
+(eval-when-compile (require 'cl-lib))
(defgroup midnight nil
"Run something every day at midnight."
the time when it is run.")
(defcustom midnight-mode nil
- "*Non-nil means run `midnight-hook' at midnight.
+ "Non-nil means run `midnight-hook' at midnight.
Setting this variable outside customize has no effect;
call `cancel-timer' or `timer-activate' on `midnight-timer' instead."
:type 'boolean
;;; time conversion
-(defun midnight-time-float (num)
- "Convert the float number of seconds since epoch to the list of 3 integers."
- (let* ((div (ash 1 16)) (1st (floor num div)))
- (list 1st (floor (- num (* (float div) 1st)))
- (round (* 10000000 (mod num 1))))))
-
-(defun midnight-buffer-display-time (&optional buf)
- "Return the time-stamp of the given buffer, or current buffer, as float."
- (with-current-buffer (or buf (current-buffer))
+(defun midnight-buffer-display-time (&optional buffer)
+ "Return the time-stamp of BUFFER, or current buffer, as float."
+ (with-current-buffer (or buffer (current-buffer))
(when buffer-display-time (float-time buffer-display-time))))
;;; clean-buffer-list stuff
(defcustom clean-buffer-list-delay-general 3
- "*The number of days before any buffer becomes eligible for autokilling.
+ "The number of days before any buffer becomes eligible for autokilling.
The autokilling is done by `clean-buffer-list' when is it in `midnight-hook'.
Currently displayed and/or modified (unsaved) buffers, as well as buffers
matching `clean-buffer-list-kill-never-buffer-names' and
:group 'midnight)
(defcustom clean-buffer-list-delay-special 3600
- "*The number of seconds before some buffers become eligible for autokilling.
+ "The number of seconds before some buffers become eligible for autokilling.
Buffers matched by `clean-buffer-list-kill-regexps' and
`clean-buffer-list-kill-buffer-names' are killed if they were last
displayed more than this many seconds ago."
:group 'midnight)
(defcustom clean-buffer-list-kill-regexps nil
- "*List of regexps saying which buffers will be killed at midnight.
+ "List of regexps saying which buffers will be killed at midnight.
If buffer name matches a regexp in the list and the buffer was not displayed
in the last `clean-buffer-list-delay-special' seconds, it is killed by
`clean-buffer-list' when is it in `midnight-hook'.
(defcustom clean-buffer-list-kill-buffer-names
'("*Help*" "*Apropos*" "*Man " "*Buffer List*" "*Compile-Log*" "*info*"
"*vc*" "*vc-diff*" "*diff*")
- "*List of strings saying which buffers will be killed at midnight.
+ "List of strings saying which buffers will be killed at midnight.
Buffers with names in this list, which were not displayed in the last
`clean-buffer-list-delay-special' seconds, are killed by `clean-buffer-list'
when is it in `midnight-hook'.
(defcustom clean-buffer-list-kill-never-buffer-names
'("*scratch*" "*Messages*")
- "*List of buffer names which will never be killed by `clean-buffer-list'.
+ "List of buffer names which will never be killed by `clean-buffer-list'.
See also `clean-buffer-list-kill-never-regexps'.
Note that this does override `clean-buffer-list-kill-regexps' and
`clean-buffer-list-kill-buffer-names' so a buffer matching any of these
:type '(repeat (string :tag "Buffer Name"))
:group 'midnight)
-
(defcustom clean-buffer-list-kill-never-regexps '("^ \\*Minibuf-.*\\*$")
- "*List of regexp saying which buffers will never be killed at midnight.
+ "List of regexp saying which buffers will never be killed at midnight.
See also `clean-buffer-list-kill-never-buffer-names'.
Killing is done by `clean-buffer-list'.
Note that this does override `clean-buffer-list-kill-regexps' and
(defun midnight-find (el ls test &optional key)
"A stopgap solution to the absence of `find' in ELisp."
- (dolist (rr ls)
+ (cl-dolist (rr ls)
(when (funcall test (if key (funcall key rr) rr) el)
- (return rr))))
+ (cl-return rr))))
(defun clean-buffer-list-delay (name)
"Return the delay, in seconds, before killing a buffer named NAME.
lifetime, i.e., its \"age\" when it will be purged."
(interactive)
(let ((tm (float-time)) bts (ts (format-time-string "%Y-%m-%d %T"))
- (bufs (buffer-list)) buf delay cbld bn)
- (while (setq buf (pop bufs))
- (setq bts (midnight-buffer-display-time buf) bn (buffer-name buf)
- delay (if bts (- tm bts) 0) cbld (clean-buffer-list-delay bn))
- (message "[%s] `%s' [%s %d]" ts bn (if bts (round delay)) cbld)
- (unless (or (midnight-find bn clean-buffer-list-kill-never-regexps
- 'string-match)
- (midnight-find bn clean-buffer-list-kill-never-buffer-names
- 'string-equal)
- (get-buffer-process buf)
- (and (buffer-file-name buf) (buffer-modified-p buf))
- (get-buffer-window buf 'visible) (< delay cbld))
- (message "[%s] killing `%s'" ts bn)
- (kill-buffer buf)))))
+ delay cbld bn)
+ (dolist (buf (buffer-list))
+ (when (buffer-live-p buf)
+ (setq bts (midnight-buffer-display-time buf) bn (buffer-name buf)
+ delay (if bts (- tm bts) 0) cbld (clean-buffer-list-delay bn))
+ (message "[%s] `%s' [%s %d]" ts bn (if bts (round delay)) cbld)
+ (unless (or (midnight-find bn clean-buffer-list-kill-never-regexps
+ 'string-match)
+ (midnight-find bn clean-buffer-list-kill-never-buffer-names
+ 'string-equal)
+ (get-buffer-process buf)
+ (and (buffer-file-name buf) (buffer-modified-p buf))
+ (get-buffer-window buf 'visible) (< delay cbld))
+ (message "[%s] killing `%s'" ts bn)
+ (kill-buffer buf))))))
;;; midnight hook
(defun midnight-next ()
"Return the number of seconds till the next midnight."
- (multiple-value-bind (sec min hrs) (decode-time)
+ (pcase-let ((`(,sec ,min ,hrs) (decode-time)))
(- (* 24 60 60) (* 60 60 hrs) (* 60 min) sec)))
;;;###autoload
"Modify `midnight-timer' according to `midnight-delay'.
Sets the first argument SYMB (which must be symbol `midnight-delay')
to its second argument TM."
- (assert (eq symb 'midnight-delay) t
- "Invalid argument to `midnight-delay-set': `%s'")
+ (cl-assert (eq symb 'midnight-delay) t
+ "Invalid argument to `midnight-delay-set': `%s'")
(set symb tm)
(when (timerp midnight-timer) (cancel-timer midnight-timer))
(setq midnight-timer
midnight-period 'run-hooks 'midnight-hook)))
(defcustom midnight-delay 3600
- "*The number of seconds after the midnight when the `midnight-timer' is run.
+ "The number of seconds after the midnight when the `midnight-timer' is run.
You should set this variable before loading midnight.el, or
set it by calling `midnight-delay-set', or use `custom'.
If you wish, you can use a string instead, it will be passed as the
(provide 'midnight)
-;;; arch-tag: a5979be9-2890-46a3-ba84-791f0a4a6e80
;;; midnight.el ends here