Quoth markwalters1009 on Nov 24 at  1:20 pm:
> From: Mark Walters <markwalters1009@gmail.com>
> 
> In preparation for the use of large queries in some cases make tagging
> from emacs use the new query on stdin functionality. Currently uses
> this for all tagging (as I could not see a reason not to).
> ---
>  emacs/notmuch-tag.el |   14 +++++++++-----
>  1 files changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/emacs/notmuch-tag.el b/emacs/notmuch-tag.el
> index 4fce3a9..4634b0d 100644
> --- a/emacs/notmuch-tag.el
> +++ b/emacs/notmuch-tag.el
> @@ -59,9 +59,10 @@ the messages that were tagged"
>        (setq search-terms (list "*")))
>    (split-string
>     (with-output-to-string
> -     (with-current-buffer standard-output
> -       (apply 'call-process notmuch-command nil t
> -	      nil "search" "--output=tags" "--exclude=false" search-terms)))
> +     (with-temp-buffer
> +       (insert (mapconcat 'identity search-terms " "))

#'identity ?

> +       (apply 'call-process-region (point-min) (point-max) notmuch-command nil

#'call-process-region ?

> +	      standard-output nil "search" "--output=tags" "--exclude=false" (list "-"))))

If you use funcall instead of apply here, you won't need to put "-" in
a list.

Also, the lines seem a little long (but maybe that's just diff and
quoting?)

>     "\n+" t))
>  
>  (defun notmuch-select-tag-with-completion (prompt &rest search-terms)
> @@ -134,8 +135,11 @@ notmuch-after-tag-hook will be run."
>  	tag-changes)
>    (unless (null tag-changes)
>      (run-hooks 'notmuch-before-tag-hook)
> -    (apply 'notmuch-call-notmuch-process "tag"
> -	   (append tag-changes (list "--" query)))
> +    (with-temp-buffer
> +      (insert query)
> +      (apply 'notmuch-call-notmuch-process-region

#'notmuch-call-notmuch-process-region ?

> +	     (point-min) (point-max)
> +	     "tag" (append tag-changes (list "--" "-"))))
>      (run-hooks 'notmuch-after-tag-hook))
>    ;; in all cases we return tag-changes as a list
>    tag-changes)