mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-24 10:38:38 +00:00
319 lines
11 KiB
EmacsLisp
319 lines
11 KiB
EmacsLisp
;; recentf.el --- setup a menu of recently opened files
|
|
|
|
;; Copyright (C) 1999 Free Software Foundation, Inc.
|
|
|
|
;; Author: David Ponce <david.ponce@wanadoo.fr>
|
|
;; Created: July 19 1999
|
|
;; Keywords: customization
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; 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.
|
|
|
|
;; GNU Emacs 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 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.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
(require 'easymenu)
|
|
|
|
(defconst recentf-save-file-header
|
|
";;; Automatically generated by `recentf' on %s.\n"
|
|
"Header to be written into the `recentf-save-file'.")
|
|
|
|
(defvar recentf-list nil
|
|
"List of recently opened files.")
|
|
|
|
(defvar recentf-update-menu-p t
|
|
"Non-nil if the recentf menu must be updated.")
|
|
|
|
(defvar recentf-initialized-p nil
|
|
"Non-nil if recentf already initialized.")
|
|
|
|
;; IMPORTANT: This function must be defined before the following defcustoms
|
|
;; because it is used in their :set clause. To avoid byte-compiler warnings
|
|
;; the `symbol-value' function is used to access the `recentf-menu-path'
|
|
;; and `recentf-menu-title' values.
|
|
(defun recentf-menu-customization-changed (sym val)
|
|
"Function called when menu customization has changed.
|
|
It removes the recentf menu and forces its complete redrawing."
|
|
(when recentf-initialized-p
|
|
(easy-menu-remove-item nil
|
|
(symbol-value 'recentf-menu-path)
|
|
(symbol-value 'recentf-menu-title))
|
|
(setq recentf-update-menu-p t))
|
|
(custom-set-default sym val))
|
|
|
|
(defgroup recentf nil
|
|
"Maintain a menu of recently opened files."
|
|
:group 'files)
|
|
|
|
(defcustom recentf-max-saved-items 20
|
|
"*Maximum number of items saved to `recentf-save-file'."
|
|
:group 'recentf
|
|
:type 'integer)
|
|
|
|
(defcustom recentf-save-file (expand-file-name "~/.recentf")
|
|
"*File to save `recentf-list' into."
|
|
:group 'recentf
|
|
:type 'file)
|
|
|
|
(defcustom recentf-exclude nil
|
|
"*List of regexps for filenames excluded from `recentf-list'."
|
|
:group 'recentf
|
|
:type '(repeat regexp))
|
|
|
|
(defcustom recentf-menu-title "Open Recent"
|
|
"*Name of the recentf menu."
|
|
:group 'recentf
|
|
:type 'string
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-menu-path '("files")
|
|
"*Path where to add the recentf menu.
|
|
If nil add it at top-level (see also `easy-menu-change')."
|
|
:group 'recentf
|
|
:type '(choice (const :tag "Top Level" nil)
|
|
(sexp :tag "Menu Path"))
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-menu-before "open-file"
|
|
"*Name of the menu before which the recentf menu will be added.
|
|
If nil add it at end of menu (see also `easy-menu-change')."
|
|
:group 'recentf
|
|
:type '(choice (string :tag "Name")
|
|
(const :tag "Last" nil))
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-menu-action 'recentf-find-file
|
|
"*Function to invoke with a filename item of the recentf menu.
|
|
The default action `recentf-find-file' calls `find-file' to edit an
|
|
existing file. If the file does not exist or is not readable, it is
|
|
not edited and its name is removed from `recentf-list'. You can use
|
|
`find-file' instead to open non-existing files and keep them is the
|
|
list of recently opened files."
|
|
:group 'recentf
|
|
:type 'function
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-max-menu-items 10
|
|
"*Maximum number of items in the recentf menu."
|
|
:group 'recentf
|
|
:type 'integer
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-menu-filter nil
|
|
"*Function used to filter files displayed in the recentf menu.
|
|
Nil means no filter. The following functions are predefined:
|
|
|
|
- - `recentf-sort-ascending' to sort menu items in ascending order.
|
|
- - `recentf-sort-descending' to sort menu items in descending order.
|
|
|
|
The filter function is called with one argument, the list of filenames to be
|
|
displayed in the menu and must return a new list of filenames."
|
|
:group 'recentf
|
|
:type 'function
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-menu-append-commands-p t
|
|
"*If not-nil command items are appended to the menu."
|
|
:group 'recentf
|
|
:type 'boolean
|
|
:set 'recentf-menu-customization-changed)
|
|
|
|
(defcustom recentf-keep-non-readable-files-p nil
|
|
"*If nil (default), non-readable files are not kept in `recentf-list'."
|
|
:group 'recentf
|
|
:type 'boolean
|
|
:set '(lambda (sym val)
|
|
(if val
|
|
(remove-hook kill-buffer-hook recentf-remove-file-hook)
|
|
(add-hook kill-buffer-hook recentf-remove-file-hook))
|
|
(custom-set-default sym val)))
|
|
|
|
(defcustom recentf-mode nil
|
|
"Toggle recentf mode.
|
|
When recentf mode is enabled, it maintains a menu for visiting files that
|
|
were operated on recently.
|
|
Setting this variable directly does not take effect;
|
|
use either \\[customize] or the function `recentf-mode'."
|
|
:set (lambda (symbol value)
|
|
(recentf-mode (or value 0)))
|
|
:initialize 'custom-initialize-default
|
|
:type 'boolean
|
|
:group 'recentf
|
|
:require 'recentf)
|
|
|
|
(defcustom recentf-load-hook nil
|
|
"*Normal hook run at end of loading the `recentf' package."
|
|
:group 'recentf
|
|
:type 'hook)
|
|
|
|
;;;###autoload
|
|
(defun recentf-mode (&optional arg)
|
|
"Toggle recentf mode.
|
|
With prefix ARG, turn recentf mode on if and only if ARG is positive.
|
|
Returns the new status of recentf mode (non-nil means on).
|
|
|
|
When recentf mode is enabled, it maintains a menu for visiting files that
|
|
were operated on recently."
|
|
(interactive "P")
|
|
(when window-system
|
|
(let ((on-p (if arg
|
|
(> (prefix-numeric-value arg) 0)
|
|
(not recentf-mode))))
|
|
(if on-p
|
|
(unless recentf-initialized-p
|
|
(setq recentf-initialized-p t)
|
|
(if (file-readable-p recentf-save-file)
|
|
(load-file recentf-save-file))
|
|
(setq recentf-update-menu-p t)
|
|
(add-hook 'find-file-hooks 'recentf-add-file-hook)
|
|
(add-hook 'write-file-hooks 'recentf-add-file-hook)
|
|
;; (add-hook 'activate-menubar-hook 'recentf-update-menu-hook)
|
|
(add-hook 'menu-bar-update-hook 'recentf-update-menu-hook)
|
|
(add-hook 'kill-emacs-hook 'recentf-save-list))
|
|
(when recentf-initialized-p
|
|
(setq recentf-initialized-p nil)
|
|
(recentf-save-list)
|
|
(easy-menu-remove-item nil recentf-menu-path recentf-menu-title)
|
|
(remove-hook 'find-file-hooks 'recentf-add-file-hook)
|
|
(remove-hook 'write-file-hooks 'recentf-add-file-hook)
|
|
;; (remove-hook 'activate-menubar-hook 'recentf-update-menu-hook)
|
|
(remove-hook 'menu-bar-update-hook 'recentf-update-menu-hook)
|
|
(remove-hook 'kill-emacs-hook 'recentf-save-list)))
|
|
(setq recentf-mode on-p))))
|
|
|
|
(defun recentf-add-file-hook ()
|
|
"Insert the name of the file just opened or written into `recentf-list'."
|
|
(and buffer-file-name (recentf-add-file buffer-file-name))
|
|
nil)
|
|
|
|
(defun recentf-remove-file-hook ()
|
|
"When a buffer is killed remove a non readable file from `recentf-list'."
|
|
(and buffer-file-name (recentf-remove-if-non-readable buffer-file-name))
|
|
nil)
|
|
|
|
(defun recentf-update-menu-hook ()
|
|
"Update the recentf menu from the current `recentf-list'."
|
|
(when recentf-update-menu-p
|
|
(condition-case nil
|
|
(progn
|
|
(easy-menu-change recentf-menu-path
|
|
recentf-menu-title
|
|
(recentf-make-menu-items)
|
|
recentf-menu-before)
|
|
(setq recentf-update-menu-p nil))
|
|
(error nil))))
|
|
|
|
;;;###autoload
|
|
(defun recentf-save-list ()
|
|
"Save the current `recentf-list' to the file `recentf-save-file'."
|
|
(interactive)
|
|
(let ((saved-list (recentf-elements recentf-max-saved-items)))
|
|
(with-temp-buffer
|
|
(erase-buffer)
|
|
(insert (format recentf-save-file-header (current-time-string)))
|
|
(insert "(setq recentf-list\n '(\n")
|
|
(mapcar '(lambda (e)
|
|
(insert (format " %S\n" e)))
|
|
saved-list)
|
|
(insert " ))")
|
|
(if (file-writable-p recentf-save-file)
|
|
(write-region (point-min) (point-max) recentf-save-file))
|
|
(kill-buffer (current-buffer))))
|
|
nil)
|
|
|
|
;;;###autoload
|
|
(defun recentf-cleanup ()
|
|
"Remove all non-readable files from `recentf-list'."
|
|
(interactive)
|
|
(setq recentf-list (delq nil (mapcar '(lambda (f)
|
|
(and (file-readable-p f) f))
|
|
recentf-list)))
|
|
(setq recentf-update-menu-p t))
|
|
|
|
(defvar recentf-menu-items-for-commands
|
|
(list ["Cleanup list" recentf-cleanup t]
|
|
["Save list now" recentf-save-list t]
|
|
(vector (format "Recentf Options...")
|
|
'(customize-group "recentf") t))
|
|
"List of menu items for recentf commands.")
|
|
|
|
(defun recentf-make-menu-items ()
|
|
"Make menu items from `recentf-list'."
|
|
(let ((file-items
|
|
(mapcar '(lambda (entry)
|
|
(vector entry (list recentf-menu-action entry) t))
|
|
(funcall (or recentf-menu-filter 'identity)
|
|
(recentf-elements recentf-max-menu-items)))))
|
|
(append (or file-items (list ["No files" t nil]))
|
|
(and recentf-menu-append-commands-p
|
|
(cons ["---" nil nil]
|
|
recentf-menu-items-for-commands)))))
|
|
|
|
(defun recentf-add-file (filename)
|
|
"Add or move FILENAME at the beginning of `recentf-list'.
|
|
Does nothing if FILENAME matches one of the `recentf-exclude' regexps."
|
|
(when (recentf-include-p filename)
|
|
(setq recentf-list (cons filename (delete filename recentf-list)))
|
|
(setq recentf-update-menu-p t)))
|
|
|
|
(defun recentf-remove-if-non-readable (filename)
|
|
"Remove FILENAME from `recentf-list' if not readable."
|
|
(unless (file-readable-p filename)
|
|
(setq recentf-list (delete filename recentf-list))
|
|
(setq recentf-update-menu-p t)))
|
|
|
|
(defun recentf-find-file (filename)
|
|
"Edit file FILENAME using `find-file'.
|
|
If FILENAME is not readable it is removed from `recentf-list'."
|
|
(if (file-readable-p filename)
|
|
(find-file filename)
|
|
(progn
|
|
(message "File `%s' not found." filename)
|
|
(setq recentf-list (delete filename recentf-list))
|
|
(setq recentf-update-menu-p t))))
|
|
|
|
(defun recentf-include-p (filename)
|
|
"Return t if FILENAME matches none of the `recentf-exclude' regexps."
|
|
(let ((rl recentf-exclude))
|
|
(while (and rl (not (string-match (car rl) filename)))
|
|
(setq rl (cdr rl)))
|
|
(null rl)))
|
|
|
|
(defun recentf-elements (n)
|
|
"Return a list of the first N elements of `recentf-list'."
|
|
(let ((lh nil) (l recentf-list))
|
|
(while (and l (> n 0))
|
|
(setq lh (cons (car l) lh))
|
|
(setq n (1- n))
|
|
(setq l (cdr l)))
|
|
(nreverse lh)))
|
|
|
|
(defun recentf-sort-ascending (l)
|
|
"Sort the list of strings L in ascending order."
|
|
(sort l '(lambda (e1 e2) (string-lessp e1 e2))))
|
|
|
|
(defun recentf-sort-descending (l)
|
|
"Sort the list of strings L in descending order."
|
|
(sort l '(lambda (e1 e2) (string-lessp e2 e1))))
|
|
|
|
(provide 'recentf)
|
|
|
|
(run-hooks 'recentf-load-hook)
|
|
|
|
;;; recentf.el ends here.
|