X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/51eb19097565376ee7a9356a50206e0010dbbdf7..208cc91ffb7056436702310670e338edc0426c5d:/lisp/midnight.el diff --git a/lisp/midnight.el b/lisp/midnight.el index 531a401f56..1d9e1efbf2 100644 --- a/lisp/midnight.el +++ b/lisp/midnight.el @@ -1,11 +1,12 @@ -;;; midnight.el --- run something every midnight, e.g., kill old buffers. +;;; midnight.el --- run something every midnight, e.g., kill old buffers -;;; Copyright (C) 1998 Free Software Foundation, Inc. +;; Copyright (C) 1998, 2002, 2003, 2004, 2005, +;; 2006 Free Software Foundation, Inc. -;;; Author: Sam Steingold -;;; Maintainer: Sam Steingold -;;; Created: 1998-05-18 -;;; Keywords: utilities +;; Author: Sam Steingold +;; Maintainer: Sam Steingold +;; Created: 1998-05-18 +;; Keywords: utilities ;; This file is part of GNU Emacs. @@ -21,8 +22,8 @@ ;; 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. +;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, +;; Boston, MA 02110-1301, USA. ;;; Commentary: @@ -48,6 +49,11 @@ :group 'calendar :version "20.3") +(defvar midnight-timer nil + "Timer running the `midnight-hook' `midnight-delay' seconds after midnight. +Use `cancel-timer' to stop it and `midnight-delay-set' to change +the time when it is run.") + (defcustom midnight-mode nil "*Non-nil means run `midnight-hook' at midnight. Setting this variable outside customize has no effect; @@ -63,11 +69,6 @@ call `cancel-timer' or `timer-activate' on `midnight-timer' instead." ;;; time conversion -(defun midnight-float-time (&optional tm) - "Convert `current-time' to a float number of seconds." - (multiple-value-bind (s0 s1 s2) (or tm (current-time)) - (+ (* (float (ash 1 16)) s0) (float s1) (* 0.0000001 s2)))) - (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))) @@ -76,9 +77,8 @@ call `cancel-timer' or `timer-activate' on `midnight-timer' instead." (defun midnight-buffer-display-time (&optional buf) "Return the time-stamp of the given buffer, or current buffer, as float." - (save-excursion - (set-buffer (or buf (current-buffer))) - (when buffer-display-time (midnight-float-time buffer-display-time)))) + (with-current-buffer (or buf (current-buffer)) + (when buffer-display-time (float-time buffer-display-time)))) ;;; clean-buffer-list stuff @@ -104,12 +104,12 @@ displayed more than this many seconds ago." 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'. -If a member of the list is a cons, it's `car' is the regexp and its `cdr' is +If a member of the list is a cons, its `car' is the regexp and its `cdr' is the number of seconds to use instead of `clean-buffer-list-delay-special'. See also `clean-buffer-list-kill-buffer-names', `clean-buffer-list-kill-never-regexps' and `clean-buffer-list-kill-never-buffer-names'." - :type 'list + :type '(repeat (regexp :tag "Regexp matching Buffer Name")) :group 'midnight) (defcustom clean-buffer-list-kill-buffer-names @@ -119,12 +119,12 @@ See also `clean-buffer-list-kill-buffer-names', 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'. -If a member of the list is a cons, it's `car' is the name and its `cdr' is +If a member of the list is a cons, its `car' is the name and its `cdr' is the number of seconds to use instead of `clean-buffer-list-delay-special'. See also `clean-buffer-list-kill-regexps', `clean-buffer-list-kill-never-regexps' and `clean-buffer-list-kill-never-buffer-names'." - :type 'list + :type '(repeat (string :tag "Buffer Name")) :group 'midnight) (defcustom clean-buffer-list-kill-never-buffer-names @@ -134,24 +134,24 @@ 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 two lists will NOT be killed if it is also present in this list." - :type 'list + :type '(repeat (string :tag "Buffer Name")) :group 'midnight) -(defcustom clean-buffer-list-kill-never-regexps '("^ \*Minibuf-.*\*$") +(defcustom clean-buffer-list-kill-never-regexps '("^ \\*Minibuf-.*\\*$") "*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 `clean-buffer-list-kill-buffer-names' so a buffer matching any of these two lists will NOT be killed if it also matches anything in this list." - :type 'list + :type '(repeat (regexp :tag "Regexp matching Buffer Name")) :group 'midnight) (defun midnight-find (el ls test &optional key) "A stopgap solution to the absence of `find' in ELisp." (dolist (rr ls) - (when (funcall test el (if key (funcall key rr) rr)) + (when (funcall test (if key (funcall key rr) rr) el) (return rr)))) (defun clean-buffer-list-delay (name) @@ -165,6 +165,7 @@ Autokilling is done by `clean-buffer-list'." clean-buffer-list-delay-special) (* clean-buffer-list-delay-general 24 60 60))) +;;;###autoload (defun clean-buffer-list () "Kill old buffers that have not been displayed recently. The relevant variables are `clean-buffer-list-delay-general', @@ -177,20 +178,22 @@ the current date/time, buffer name, how many seconds ago it was displayed (can be nil if the buffer was never displayed) and its lifetime, i.e., its \"age\" when it will be purged." (interactive) - (let ((tm (midnight-float-time)) bts (ts (format-time-string "%Y-%m-%d %T")) bn - (bufs (buffer-list)) buf delay cbld) - (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) - (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))))) + (let ((tm (float-time)) bts (ts (format-time-string "%Y-%m-%d %T")) + 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 @@ -208,18 +211,13 @@ The default value is `clean-buffer-list'." (multiple-value-bind (sec min hrs) (decode-time) (- (* 24 60 60) (* 60 60 hrs) (* 60 min) sec))) -(defvar midnight-timer nil - "Timer running the `midnight-hook' `midnight-delay' seconds after midnight. -Use `cancel-timer' to stop it and `midnight-delay-set' to change -the time when it is run.") - ;;;###autoload (defun midnight-delay-set (symb tm) "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 - "Illegal argument to `midnight-delay-set': `%s'" symb) + "Invalid argument to `midnight-delay-set': `%s'") (set symb tm) (when (timerp midnight-timer) (cancel-timer midnight-timer)) (setq midnight-timer @@ -238,4 +236,5 @@ first argument to `run-at-time'." (provide 'midnight) +;;; arch-tag: a5979be9-2890-46a3-ba84-791f0a4a6e80 ;;; midnight.el ends here