+Tags starting with \"+\" (or not starting with either \"+\" or
+\"-\") in the list will be added, and tags starting with \"-\"
+will be removed from the message being forwarded.
+
+For example, if you wanted to add a \"forwarded\" tag and remove
+the \"inbox\" tag, you would set:
+ (\"+forwarded\" \"-inbox\")"
+ :type '(repeat string)
+ :group 'notmuch-send)
+
+(defconst notmuch-message-queued-tag-changes nil
+ "List of messages and corresponding tag-changes to be applied when sending a message.
+
+This variable is overridden by buffer-local versions in message
+buffers where tag changes should be triggered when sending off
+the message. Each item in this list is a list of strings, where
+the first is a notmuch query and the rest are the tag changes to
+be applied to the matching messages.")
+
+(defun notmuch-message-apply-queued-tag-changes ()
+ ;; Apply the tag changes queued in the buffer-local variable notmuch-message-queued-tag-changes.
+ (dolist (query-and-tags notmuch-message-queued-tag-changes)
+ (notmuch-tag (car query-and-tags)
+ (cdr query-and-tags))))
+
+(add-hook 'message-send-hook 'notmuch-message-apply-queued-tag-changes)