GNU bug report logs - #79721
30.2; Thread search in gnus-search-notmuch uses incorrect format

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.2; Thread search in gnus-search-notmuch uses incorrect format
Date: Wed, 29 Oct 2025 21:07:27 +0000

Hello,

In gnus-search-notmuch implementation of
gnus-search-indexed-search-command (gnus-search.el:1686), the thread
queries use directly id formats as provided in qstring, which happen to
include <> brackets. So the query received here seems to not have been
transformed according to gnus-search-transform-expression, which removes
them (as required for notmuch) in line 1668. As result, all invocations
of A T in the summary fail with empty threads.

I know this is so because I've put a trace in the function above, and
see that it receives queries of the form (real example)

  "id:<discourse/post/549043 <at> users.rust-lang.org> or id:<discourse/post/548959 <at> users.rust-lang.org> or id:<discourse/post/548986 <at> users.rust-lang.org>"

in the qstring parameter. If one removes angled brackets from that
query, the search succeeds.

Thanks!
jao


In GNU Emacs 30.2 (build 2, aarch64-apple-darwin25.0.0, NS
 appkit-2685.10 Version 26.0.1 (Build 25A362)) of 2025-10-10 built on
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Windowing system distributor 'Apple', version 10.3.2685
System Description:  macOS 26.0.1

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--
Everyone confesses that exertion which brings out all the powers of body and
mind is the best thing for us; but most people do all they can to get rid of
it, and as a general rule nobody does much more than circumstances drive them
to do. -Harriet Beecher Stowe (1811-1896)

Message #8 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
To: <79721 <at> debbugs.gnu.org>
Subject: Re: bug#79721: Acknowledgement (30.2; Thread search in
 gnus-search-notmuch uses incorrect format)
Date: Thu, 30 Oct 2025 03:01:43 +0000

For reference, I've worked around this problem by defining this engine,
which also (orthogonally to this issue) makes use of the `groups'
parameter to add a folder: constraint to the query:

--8<---------------cut here---------------start------------->8---
(defclass gnus-search-jao-notmuch (gnus-search-notmuch) ())

(cl-defmethod gnus-search-indexed-search-command
  ((engine gnus-search-jao-notmuch) (qstring string) query &optional groups)
  (let* ((limit (alist-get 'limit query))
         (thread (alist-get 'thread query))
         (qs (cond (thread
                    (format "thread:\"{%s}\""
                            (thread-last (string-replace "\"" "\"\"" qstring)
                                         (string-replace "<" "")
                                         (string-replace ">" ""))))
                   (groups
                    (let ((gs (mapconcat 'gnus-group-short-name groups "|")))
                      (format "(%s) and folder:/%s/" qstring gs)))
                   (t qstring))))
    (with-slots (switches config-file) engine
      `(,(format "--config=%s" config-file) "search" "--output=files"
        ,@(unless thread '("--duplicate=1"))
        ,@(when limit (list (format "--limit=%d" limit)))
        ,@switches
        ,qs))))
--8<---------------cut here---------------end--------------->8---

Seems to be working here :)

Cheers,
jao

Message #11 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Thu, 30 Oct 2025 10:45:05 +0100

>>>>> On Wed, 29 Oct 2025 21:07:27 +0000, "Jose A. Ortega Ruiz" <jao <at> gnu.org> said:

    jao> Hello,

    jao> In gnus-search-notmuch implementation of
    jao> gnus-search-indexed-search-command (gnus-search.el:1686), the thread
    jao> queries use directly id formats as provided in qstring, which happen to
    jao> include <> brackets. So the query received here seems to not have been
    jao> transformed according to gnus-search-transform-expression, which removes
    jao> them (as required for notmuch) in line 1668. As result, all invocations
    jao> of A T in the summary fail with empty threads.

    jao> I know this is so because I've put a trace in the function above, and
    jao> see that it receives queries of the form (real example)

    jao>   "id:<discourse/post/549043 <at> users.rust-lang.org> or id:<discourse/post/548959 <at> users.rust-lang.org> or id:<discourse/post/548986 <at> users.rust-lang.org>"

    jao> in the qstring parameter. If one removes angled brackets from that
    jao> query, the search succeeds.

Can you show us what the value of 'expr' is at entry to
`gnus-search-transform-expression'? The code looks correct, which
means my assumptions donʼt match reality 😀

Robert
-- 

Message #14 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
To: "Robert Pluim" <rpluim <at> gmail.com>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Thu, 30 Oct 2025 13:20:26 +0000

On Thu, Oct 30 2025, Robert Pluim wrote:

>
>     jao>   "id:<discourse/post/549043 <at> users.rust-lang.org> or id:<discourse/post/548959 <at> users.rust-lang.org> or id:<discourse/post/548986 <at> users.rust-lang.org>"
>
>     jao> in the qstring parameter. If one removes angled brackets from that
>     jao> query, the search succeeds.
>
> Can you show us what the value of 'expr' is at entry to
> `gnus-search-transform-expression'? The code looks correct, which
> means my assumptions donʼt match reality 😀

As far as I can tell, gnus-search-transform-expression is never
called. The code goes as far as calling gnus-search-parse-query with a
string that looks like the above, but the iteration using
gnus-search-query-next-expr never triggers a call to the transform
generic for gnus-search-notmuch. It's as if it had lost track of the
engine. Not sure if that might be related, but my secondary select
method has an empty name:

   (nnml "" (gnus-search-engine gnus-search-jao-notmuch (remove-prefix ...)))

Cheers,
jao
-- 
The little I know, I owe to my ignorance. -Sacha Guitry (1885-1957)

Message #17 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: Robert Pluim <rpluim <at> gmail.com>
To: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Thu, 30 Oct 2025 14:51:31 +0100

>>>>> On Thu, 30 Oct 2025 13:20:26 +0000, "Jose A. Ortega Ruiz" <jao <at> gnu.org> said:

    jao> On Thu, Oct 30 2025, Robert Pluim wrote:
    >> 
    jao> "id:<discourse/post/549043 <at> users.rust-lang.org> or
    jao> id:<discourse/post/548959 <at> users.rust-lang.org> or
    jao> id:<discourse/post/548986 <at> users.rust-lang.org>"
    >> 
    jao> in the qstring parameter. If one removes angled brackets from that
    jao> query, the search succeeds.
    >> 
    >> Can you show us what the value of 'expr' is at entry to
    >> `gnus-search-transform-expression'? The code looks correct, which
    >> means my assumptions donʼt match reality 😀

    jao> As far as I can tell, gnus-search-transform-expression is never
    jao> called. The code goes as far as calling gnus-search-parse-query with a
    jao> string that looks like the above, but the iteration using
    jao> gnus-search-query-next-expr never triggers a call to the transform
    jao> generic for gnus-search-notmuch. It's as if it had lost track of the
    jao> engine. Not sure if that might be related, but my secondary select
    jao> method has an empty name:

    jao>    (nnml "" (gnus-search-engine gnus-search-jao-notmuch (remove-prefix ...)))

Hmm, I guess you need to figure out why
`gnus-search-transform-expression' is never called. I donʼt use
notmuch myself. If all else fails I guess I can try to set it up.

Robert
-- 

Message #20 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
To: "Robert Pluim" <rpluim <at> gmail.com>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Thu, 30 Oct 2025 18:04:26 +0000

On Thu, Oct 30 2025, Robert Pluim wrote:

[...]

> Hmm, I guess you need to figure out why
> `gnus-search-transform-expression' is never called. I donʼt use
> notmuch myself. If all else fails I guess I can try to set it up.
>
> Robert
> --
>
>

Actually, I don't think this generic function gets called for any
specific engine at all, at least for the nnml backend:

Inside gnus-summary-refer-thread, one ends up in gnus-search.el:9041,
where one sees the call:

       (gnus-search-thread header)

which is passed neither the group nor the server, so it seems not
possible that the search is performed using an engine-specific parsing,
as the search engine is confirgured per server. Or am i missing
something?

Cheers,
jao
-- 
Spend the afternoon. You can't take it with you.
  -Annie Dillard, author (b. 1945)

Message #23 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: Sean Whitton <spwhitton <at> spwhitton.name>
To: "Jose A. Ortega Ruiz" <jao <at> gnu.org>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Mon, 03 Nov 2025 19:10:14 +0000

Hello,

On Wed 29 Oct 2025 at 09:07pm GMT, Jose A. Ortega Ruiz wrote:

> Hello,
>
> In gnus-search-notmuch implementation of
> gnus-search-indexed-search-command (gnus-search.el:1686), the thread
> queries use directly id formats as provided in qstring, which happen to
> include <> brackets. So the query received here seems to not have been
> transformed according to gnus-search-transform-expression, which removes
> them (as required for notmuch) in line 1668. As result, all invocations
> of A T in the summary fail with empty threads.
>
> I know this is so because I've put a trace in the function above, and
> see that it receives queries of the form (real example)
>
>   "id:<discourse/post/549043 <at> users.rust-lang.org> or id:<discourse/post/548959 <at> users.rust-lang.org> or id:<discourse/post/548986 <at> users.rust-lang.org>"
>
> in the qstring parameter. If one removes angled brackets from that
> query, the search succeeds.

I use Gnus+notmuch and have not run into this.  'A T' works for me.  Hrm.

-- 
Sean Whitton

Message #26 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: Jose Antonio Ortega Ruiz <jao <at> gnu.org>
To: Sean Whitton <spwhitton <at> spwhitton.name>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Mon, 03 Nov 2025 19:31:24 +0000

On Mon, Nov 03 2025, Sean Whitton wrote:

[...]

> I use Gnus+notmuch and have not run into this.  'A T' works for me.  Hrm.

Hmm. What version of emacs do you use? This one is 30.2.

Cheers,
jao
-- 
"Faith" is a fine invention / For gentlemen who see --
But microscopes are prudent / In an emergency.
  -Emily Dickinson (1830-1886)

Message #29 received at 79721 <at> debbugs.gnu.org (full text, mbox):

From: Sean Whitton <spwhitton <at> spwhitton.name>
To: Jose Antonio Ortega Ruiz <jao <at> gnu.org>
Cc: 79721 <at> debbugs.gnu.org
Subject: Re: bug#79721: 30.2; Thread search in gnus-search-notmuch uses
 incorrect format
Date: Tue, 04 Nov 2025 11:00:48 +0000

Hello,

On Mon 03 Nov 2025 at 07:31pm GMT, Jose Antonio Ortega Ruiz wrote:

> On Mon, Nov 03 2025, Sean Whitton wrote:
>
> [...]
>
>> I use Gnus+notmuch and have not run into this.  'A T' works for me.  Hrm.
>
> Hmm. What version of emacs do you use? This one is 30.2.

The trunk.  But Gnus hasn't changed much.

-- 
Sean Whitton

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