;;; Code:
(put 'file-locked 'error-conditions '(file-locked file-error error))
+(put 'file-locked 'error-message "File is locked")
;;;###autoload
-(defun ask-user-about-lock (fn opponent)
- "Ask user what to do when he wants to edit FILE but it is locked by USER.
+(defun ask-user-about-lock (file opponent)
+ "Ask user what to do when he wants to edit FILE but it is locked by OPPONENT.
This function has a choice of three things to do:
- do (signal 'buffer-file-locked (list FILE USER))
+ do (signal 'file-locked (list FILE OPPONENT))
to refrain from editing the file
return t (grab the lock on the file)
return nil (edit the file even though it is locked).
-You can rewrite it to use any criterion you like to choose which one to do."
+You can redefine this function to choose among those three alternatives
+in any way you like."
(discard-input)
(save-window-excursion
- (let (answer)
+ (let (answer short-opponent short-file)
+ (setq short-file
+ (if (> (length file) 22)
+ (concat "..." (substring file (- (length file) 22)))
+ file))
+ (setq short-opponent
+ (if (> (length opponent) 25)
+ (save-match-data
+ (string-match " (pid [0-9]+)" opponent)
+ (concat (substring opponent 0 13) "..."
+ (match-string 0 opponent)))
+ opponent))
(while (null answer)
- (message "%s is locking %s: action (s, q, p, ?)? " opponent fn)
+ (message "%s locked by %s: (s, q, p, ?)? "
+ short-file short-opponent)
(let ((tem (let ((inhibit-quit t)
(cursor-in-echo-area t))
(prog1 (downcase (read-char))
(ask-user-about-lock-help)
(setq answer nil))
((eq (cdr answer) 'yield)
- (signal 'file-locked (list "File is locked" fn opponent)))))))
+ (signal 'file-locked (list file opponent)))))))
(cdr answer))))
(defun ask-user-about-lock-help ()
(message "%s changed on disk; really edit the buffer? (y, n, r or C-h) "
(file-name-nondirectory fn))
(let ((tem (downcase (let ((cursor-in-echo-area t))
- (read-char)))))
+ (read-char-exclusive)))))
(setq answer
(if (= tem help-char)
'help
(set-buffer standard-output)
(help-mode))))
+;;; arch-tag: a61c5b60-e1c8-44fd-894a-c617f4dfc639
;;; userlock.el ends here