Ephemeral notmuch search group

Ephemeral notmuch search group

[Jakub Ječmínek]

Hi, here's a little function which creates ephemeral group based on a
Notmuch search result.  I ocasionally use Notmuch to perform fast search
but I don't want to use nnmaildir or leave Gnus. Maybe it will be useful
to someone :).


(defun gnus-read-ephemeral-notmuch-search-group (query limit &optional window-conf)
  "Create an ephemeral group based on a Notmuch search.

Performs a Notmuch search using QUERY and displays them in an ephemeral
group.

If called without a prefix argument, prompts for a LIMIT value."
  (interactive (list
		(read-string "Query: ")
		(or current-prefix-arg (read-number "Limit: " 200))))
  (unless (executable-find gnus-search-notmuch-program)
    (user-error "Notmuch executable not found in PATH"))
  (unless (file-exists-p gnus-search-notmuch-config-file)
    (user-error "Notmuch config file does not exist: %s"
	   gnus-search-notmuch-config-file))
  (let* ((tmpfile (make-temp-file "notmuch-search#"))
	 (file-name (file-name-nondirectory tmpfile)))
    (with-temp-file tmpfile
      (mm-disable-multibyte)
      (call-process
       gnus-search-notmuch-program nil t nil
       (format "--config=%s" gnus-search-notmuch-config-file)
       "show" "--format=mbox" "--sort=newest-first" (format "--limit=%s" limit)
       "--" query))
      (gnus-group-read-ephemeral-group
       (concat "nndoc+ephemeral:" file-name)
       `(nndoc ,tmpfile
               (nndoc-article-type mbox))
       nil window-conf)
    (delete-file tmpfile)))

Re: Ephemeral notmuch search group

[Sean Whitton]

Hello,

On Sun 13 Jul 2025 at 12:14am +02, Jakub Ječmínek wrote:

> Hi, here's a little function which creates ephemeral group based on a
> Notmuch search result.  I ocasionally use Notmuch to perform fast search
> but I don't want to use nnmaildir or leave Gnus. Maybe it will be useful
> to someone :).

Isn't notmuch only able to read maildirs?  How do you read your mail?

-- 
Sean Whitton

Re: Ephemeral notmuch search group

[Adam Sjøgren]

Sean writes:

> Isn't notmuch only able to read maildirs?  How do you read your mail?

Notmuch works fine with nnml for me.

nnmaildir was much too slow in comparison back to nnml in the 90's
when I made that choice :-)


  Best regards,

    Adam

-- 
 "It will turn into pointer equality or something           Adam Sjøgren
  ghastly like that"                                   asjo@koldfront.dk

Re: Ephemeral notmuch search group

[Eric S Fraga]

Response below/inline for email Sean Whitton wrote:
> (original email sent 13 Jul 2025 at 06:31)
> 
> Isn't notmuch only able to read maildirs?  How do you read your mail?

FTR, I use notmuch search (from gnus) for nnml groups so not just
maildir.

-- 
Eric S Fraga via gnus (Emacs 31.0.50 2025-04-23) on Debian 12.11