;; Authors: Carl Worth <cworth@cworth.org>
;; David Edmondson <dme@dme.org>
-(require 'cl)
+(eval-when-compile (require 'cl))
(require 'mm-view)
(require 'message)
(require 'mm-decode)
"Keymap for \"notmuch show\" buffers.")
(fset 'notmuch-show-mode-map notmuch-show-mode-map)
-;;;###autoload
(defun notmuch-show-mode ()
"Major mode for viewing a thread with notmuch.
(concat command " < " (shell-quote-argument (notmuch-show-get-filename)))))
(start-process-shell-command "notmuch-pipe-command" "*notmuch-pipe*" shell-command)))
+(defun notmuch-show-add-tags-worker (current-tags add-tags)
+ "Add to `current-tags' with any tags from `add-tags' not
+currently present and return the result."
+ (let ((result-tags (copy-sequence current-tags)))
+ (mapc (lambda (add-tag)
+ (unless (member add-tag current-tags)
+ (setq result-tags (push add-tag result-tags))))
+ add-tags)
+ (sort result-tags 'string<)))
+
+(defun notmuch-show-del-tags-worker (current-tags del-tags)
+ "Remove any tags in `del-tags' from `current-tags' and return
+the result."
+ (let ((result-tags (copy-sequence current-tags)))
+ (mapc (lambda (del-tag)
+ (setq result-tags (delete del-tag result-tags)))
+ del-tags)
+ result-tags))
+
(defun notmuch-show-add-tag (&rest toadd)
"Add a tag to the current message."
(interactive
(list (notmuch-select-tag-with-completion "Tag to add: ")))
- (apply 'notmuch-call-notmuch-process
- (append (cons "tag"
- (mapcar (lambda (s) (concat "+" s)) toadd))
- (cons (notmuch-show-get-message-id) nil)))
- (notmuch-show-set-tags (sort (union toadd (notmuch-show-get-tags) :test 'string=) 'string<)))
+
+ (let* ((current-tags (notmuch-show-get-tags))
+ (new-tags (notmuch-show-add-tags-worker current-tags toadd)))
+
+ (unless (equal current-tags new-tags)
+ (apply 'notmuch-call-notmuch-process
+ (append (cons "tag"
+ (mapcar (lambda (s) (concat "+" s)) toadd))
+ (cons (notmuch-show-get-message-id) nil)))
+ (notmuch-show-set-tags new-tags))))
(defun notmuch-show-remove-tag (&rest toremove)
"Remove a tag from the current message."
(interactive
(list (notmuch-select-tag-with-completion
"Tag to remove: " (notmuch-show-get-message-id))))
- (let ((tags (notmuch-show-get-tags)))
- (if (intersection tags toremove :test 'string=)
- (progn
- (apply 'notmuch-call-notmuch-process
- (append (cons "tag"
- (mapcar (lambda (s) (concat "-" s)) toremove))
- (cons (notmuch-show-get-message-id) nil)))
- (notmuch-show-set-tags (sort (set-difference tags toremove :test 'string=) 'string<))))))
+
+ (let* ((current-tags (notmuch-show-get-tags))
+ (new-tags (notmuch-show-del-tags-worker current-tags toremove)))
+
+ (unless (equal current-tags new-tags)
+ (apply 'notmuch-call-notmuch-process
+ (append (cons "tag"
+ (mapcar (lambda (s) (concat "-" s)) toremove))
+ (cons (notmuch-show-get-message-id) nil)))
+ (notmuch-show-set-tags new-tags))))
(defun notmuch-show-toggle-headers ()
"Toggle the visibility of the current message headers."