+
+## `notmuch-hello` refresh status message
+
+Add the following to your `.emacs` to get a status message about the change in
+the number of messages in the mail store when refreshing the `notmuch-hello`
+buffer.
+
+ (defvar notmuch-hello-refresh-count 0)
+
+ (defun notmuch-hello-refresh-status-message ()
+ (unless no-display
+ (let* ((new-count
+ (string-to-number
+ (car (process-lines notmuch-command "count"))))
+ (diff-count (- new-count notmuch-hello-refresh-count)))
+ (cond
+ ((= notmuch-hello-refresh-count 0)
+ (message "You have %s messages."
+ (notmuch-hello-nice-number new-count)))
+ ((> diff-count 0)
+ (message "You have %s more messages since last refresh."
+ (notmuch-hello-nice-number diff-count)))
+ ((< diff-count 0)
+ (message "You have %s fewer messages since last refresh."
+ (notmuch-hello-nice-number (- diff-count)))))
+ (setq notmuch-hello-refresh-count new-count))))
+
+ (add-hook 'notmuch-hello-refresh-hook 'notmuch-hello-refresh-status-message)