bug#46047: 28.0.50; Namazu-based mail searching not working anymore

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Since commit 7fad12c59b3c65665c10050e800d1d7ad5a2e056, I have
problems getting namazu-based mail searching working.  My
configuration says:

In .emacs:

(setq nnir-namazu-index-directory "/var/lib/namazu/")

In .gnus:

(setq gnus-secondary-select-methods '((nnml "" (nnir-search-engine namazu))))
;; I have not set gnus-search-use-parsed-queries.

This results in "Group nnselect:nnselect-87sg78bdzr.fsf contains no
messages" error when I hit "G G" in the group buffer and enter a query
string.  Besides, the namazu executable is not called at all.  The same
behavour I get if I don’t configure namazu at all in Emacs/Gnus.



In GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, cairo version 1.16.0)
 of 2021-01-10 built on brad
Repository revision: 8ace7700b93c6c0835ddac6633a7ec07daf56225
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-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Since commit 7fad12c59b3c65665c10050e800d1d7ad5a2e056, I have
> problems getting namazu-based mail searching working.  My
> configuration says:
>
> In .emacs:
>
> (setq nnir-namazu-index-directory "/var/lib/namazu/")
>
> In .gnus:
>
> (setq gnus-secondary-select-methods '((nnml "" (nnir-search-engine namazu))))
> ;; I have not set gnus-search-use-parsed-queries.
>
> This results in "Group nnselect:nnselect-87sg78bdzr.fsf contains no
> messages" error when I hit "G G" in the group buffer and enter a query
> string.  Besides, the namazu executable is not called at all.  The same
> behavour I get if I don’t configure namazu at all in Emacs/Gnus.

Thanks for the report. I haven't provided obsolete aliases for all of
the old nnir-<engine>-* variables, as that would be quite a pile, but if
that's annoying to enough people I can.

If you're not planning to revert to an earlier Emacs, it would be
easiest just to switch to setting `gnus-search-namazu-index-directory'.
If you are planning to revert, you could always set both. Alternately,
you could set the index directory within the server definition itself,
like so:

'((nnml "" (nnir-search-engine namazu
             (nnir-namazu-index-directory "/var/lib/namazu/"))))

I haven't yet added backwards compatibility code to honor that server
parameter, but I could do so fairly easily, then this config would be
past-and-future proof.

It's a little suspicious that the namazu program isn't getting called at
all, though. The code essentially just calls:

(start-process "name" <buffer> "namazu")

If "namazu" is on your path, it should be found.

Would you try setting the newer index-directory variable, just to
eliminate that as a source of error?

nnselect-run currently downgrades errors to messages (then reports no
messages found), so if there's really something blowing up, you might
see it in your *Messages* buffer.

Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> [...]
>
> Thanks for the report. I haven't provided obsolete aliases for all of
> the old nnir-<engine>-* variables, as that would be quite a pile, but if
> that's annoying to enough people I can.

Thank you for your quick reaction.  FWIW, I don’t care about
reverting.  If I find a solution that only works with newest Emacs,
that’s fine.  However, this is only me.

> If you're not planning to revert to an earlier Emacs, it would be
> easiest just to switch to setting
> `gnus-search-namazu-index-directory'.  If you are planning to
> revert, you could always set both. Alternately, you could set the
> index directory within the server definition itself, like so:
>
> '((nnml "" (nnir-search-engine namazu
>              (nnir-namazu-index-directory "/var/lib/namazu/"))))

Franky, I don’t understand all this really.  I'm driving blindfolded
a bit.  Anyway, I put

(setq gnus-secondary-select-methods
      '((nnml "" (nnir-search-engine namazu
                                     (nnir-namazu-index-directory "/var/lib/namazu/")))))
(setq gnus-search-namazu-index-directory "/var/lib/namazu/")

in my .gnus.

> [...]
>
> nnselect-run currently downgrades errors to messages (then reports
> no messages found), so if there's really something blowing up, you
> might see it in your *Messages* buffer.

The *Messages* buffer says:

nnselect-run: gnus-search-run-query on ((search-query-spec (query . testquery) (raw)) (search-group-spec (nnml: nnml:KFA))) gave error (unbound-slot gnus-search-namazu #<gnus-search-namazu gnus-search-namazu-157f858a8568> index-directory oref)
Group nnselect:nnselect-87a6sztnu9.fsf contains no messages

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Eric Abrahamsen writes:
>
>> [...]
>>
>> Thanks for the report. I haven't provided obsolete aliases for all of
>> the old nnir-<engine>-* variables, as that would be quite a pile, but if
>> that's annoying to enough people I can.
>
> Thank you for your quick reaction.  FWIW, I don’t care about
> reverting.  If I find a solution that only works with newest Emacs,
> that’s fine.  However, this is only me.
>
>> If you're not planning to revert to an earlier Emacs, it would be
>> easiest just to switch to setting
>> `gnus-search-namazu-index-directory'.  If you are planning to
>> revert, you could always set both. Alternately, you could set the
>> index directory within the server definition itself, like so:
>>
>> '((nnml "" (nnir-search-engine namazu
>>              (nnir-namazu-index-directory "/var/lib/namazu/"))))
>
> Franky, I don’t understand all this really.  I'm driving blindfolded
> a bit.  Anyway, I put
>
> (setq gnus-secondary-select-methods
>       '((nnml "" (nnir-search-engine namazu
>                                      (nnir-namazu-index-directory "/var/lib/namazu/")))))
> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")
>
> in my .gnus.

Sorry if I wasn't clear -- I *can* provide backwards-compatible code to
handle the above, but I haven't yet. If you don't care about downgrading
Emacs, I would use the above, but take off the "nnir-namazu-" prefix, ie
just:

(index-directory "/var/lib/namazu/")

>> [...]
>>
>> nnselect-run currently downgrades errors to messages (then reports
>> no messages found), so if there's really something blowing up, you
>> might see it in your *Messages* buffer.
>
> The *Messages* buffer says:
>
> nnselect-run: gnus-search-run-query on ((search-query-spec (query .
> testquery) (raw)) (search-group-spec (nnml: nnml:KFA))) gave error
> (unbound-slot gnus-search-namazu #<gnus-search-namazu
> gnus-search-namazu-157f858a8568> index-directory oref)
> Group nnselect:nnselect-87a6sztnu9.fsf contains no messages

Perfect, this is the real bug, thank you. I'll get this fixed soon.

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

> Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>
>> Hallöchen!
>>
>> Eric Abrahamsen writes:
>>
>>> [...]
>>>
>>> Thanks for the report. I haven't provided obsolete aliases for all of
>>> the old nnir-<engine>-* variables, as that would be quite a pile, but if
>>> that's annoying to enough people I can.
>>
>> Thank you for your quick reaction.  FWIW, I don’t care about
>> reverting.  If I find a solution that only works with newest Emacs,
>> that’s fine.  However, this is only me.
>>
>>> If you're not planning to revert to an earlier Emacs, it would be
>>> easiest just to switch to setting
>>> `gnus-search-namazu-index-directory'.  If you are planning to
>>> revert, you could always set both. Alternately, you could set the
>>> index directory within the server definition itself, like so:
>>>
>>> '((nnml "" (nnir-search-engine namazu
>>>              (nnir-namazu-index-directory "/var/lib/namazu/"))))
>>
>> Franky, I don’t understand all this really.  I'm driving blindfolded
>> a bit.  Anyway, I put
>>
>> (setq gnus-secondary-select-methods
>>       '((nnml "" (nnir-search-engine namazu
>>                                      (nnir-namazu-index-directory "/var/lib/namazu/")))))
>> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")
>>
>> in my .gnus.
>
> Sorry if I wasn't clear -- I *can* provide backwards-compatible code to
> handle the above, but I haven't yet. If you don't care about downgrading
> Emacs, I would use the above, but take off the "nnir-namazu-" prefix, ie
> just:
>
> (index-directory "/var/lib/namazu/")
>
>>> [...]
>>>
>>> nnselect-run currently downgrades errors to messages (then reports
>>> no messages found), so if there's really something blowing up, you
>>> might see it in your *Messages* buffer.
>>
>> The *Messages* buffer says:
>>
>> nnselect-run: gnus-search-run-query on ((search-query-spec (query .
>> testquery) (raw)) (search-group-spec (nnml: nnml:KFA))) gave error
>> (unbound-slot gnus-search-namazu #<gnus-search-namazu
>> gnus-search-namazu-157f858a8568> index-directory oref)
>> Group nnselect:nnselect-87a6sztnu9.fsf contains no messages
>
> Perfect, this is the real bug, thank you. I'll get this fixed soon.

Okay, that ought to be fixed, but you'll still need to change your
config either to set `gnus-search-namazu-index-directory', or to set the
'index-directory' key in your server definition.

Please let me know if you can confirm the fix!

Thanks,
Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>>
>>> Hallöchen!
>>>
>>> [...]
>>>
>>> Franky, I don’t understand all this really.  I'm driving
>>> blindfolded a bit.  Anyway, I put
>>>
>>> (setq gnus-secondary-select-methods
>>>       '((nnml "" (nnir-search-engine namazu
>>>                                      (nnir-namazu-index-directory "/var/lib/namazu/")))))
>>> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")
>>>
>>> in my .gnus.
>>
>> Sorry if I wasn't clear -- I *can* provide backwards-compatible
>> code to handle the above, but I haven't yet. If you don't care
>> about downgrading Emacs, I would use the above, but take off the
>> "nnir-namazu-" prefix, ie just:
>>
>> (index-directory "/var/lib/namazu/")

This has no effect on how Namazu is called on my machine.  Only
gnus-search-namazu-index-directory set the directory parameter of
the Namazu call correctly.

> [...]

I have now

(setq gnus-secondary-select-methods
      '((nnml "" (nnir-search-engine namazu))))
(setq gnus-search-namazu-index-directory "/var/lib/namazu/")

in my .gnus, and with current Git Emacs, Namazu is correctly called!
But it only works if no search results are found.  Otherwise,
*Messages* contains:

nnselect-run: gnus-search-run-query on ((search-query-spec (query . myquerystring) (raw)) (search-group-spec (nnml: nnml:Somegroup))) gave error (wrong-type-argument stringp nil)
Group nnselect:nnselect-877do1l461.fsf contains no messages

I have attached a shell script that you can use as a drop-in
replacement for namazu proper for easy generation of search results
that trigger this error for me.

Regards,
Torsten.



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-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Eric Abrahamsen writes:
>
>> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>>
>>> Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>>>
>>>> Hallöchen!
>>>>
>>>> [...]
>>>>
>>>> Franky, I don’t understand all this really.  I'm driving
>>>> blindfolded a bit.  Anyway, I put
>>>>
>>>> (setq gnus-secondary-select-methods
>>>>       '((nnml "" (nnir-search-engine namazu
>>>>                                      (nnir-namazu-index-directory "/var/lib/namazu/")))))
>>>> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")
>>>>
>>>> in my .gnus.
>>>
>>> Sorry if I wasn't clear -- I *can* provide backwards-compatible
>>> code to handle the above, but I haven't yet. If you don't care
>>> about downgrading Emacs, I would use the above, but take off the
>>> "nnir-namazu-" prefix, ie just:
>>>
>>> (index-directory "/var/lib/namazu/")
>
> This has no effect on how Namazu is called on my machine.  Only
> gnus-search-namazu-index-directory set the directory parameter of
> the Namazu call correctly.
>
>> [...]
>
> I have now
>
> (setq gnus-secondary-select-methods
>       '((nnml "" (nnir-search-engine namazu))))
> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")

Yes, the bare 'index-directory and 'remove-prefix configuration keys will only be
honored if you're using the 'gnus-search-engine config, not the
'nnir-search-engine config. I thought about picking up mixed config, but
it's just going to turn into too much of a mess. So your completely
correct, should-work-every-time config would look like:

(setq gnus-secondary-select-methods
      '((nnml "" (gnus-search-engine
		  gnus-search-namazu
		  remove-prefix "/home/bronger/Mail"
		  index-directory "/var/lib/namazu/"))))

> in my.gnus, and with current Git Emacs, Namazu is correctly called!
> But it only works if no search results are found.  Otherwise,
> *Messages* contains:
>
> nnselect-run: gnus-search-run-query on ((search-query-spec (query .
> myquerystring) (raw)) (search-group-spec (nnml: nnml:Somegroup))) gave
> error (wrong-type-argument stringp nil)
> Group nnselect:nnselect-877do1l461.fsf contains no messages
>
> I have attached a shell script that you can use as a drop-in
> replacement for namazu proper for easy generation of search results
> that trigger this error for me.

Thanks for providing this. There was a bug in the parsing of namazu
output that should now be fixed. Please let me know if you can confirm!

Thanks,
Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>
>> [...]
>>
>> I have now
>>
>> (setq gnus-secondary-select-methods
>>       '((nnml "" (nnir-search-engine namazu))))
>> (setq gnus-search-namazu-index-directory "/var/lib/namazu/")
>
> Yes, the bare 'index-directory and 'remove-prefix configuration
> keys will only be honored if you're using the 'gnus-search-engine
> config, not the 'nnir-search-engine config. I thought about
> picking up mixed config, but it's just going to turn into too much
> of a mess. So your completely correct, should-work-every-time
> config would look like:
>
> (setq gnus-secondary-select-methods
>       '((nnml "" (gnus-search-engine
> 		  gnus-search-namazu
> 		  remove-prefix "/home/bronger/Mail"
> 		  index-directory "/var/lib/namazu/"))))

But this does not call namazu for me.  The above 'nnir-search-engine
based config does, however.

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Torsten Bronger writes:

> [...]
>>
>> (setq gnus-secondary-select-methods
>>       '((nnml "" (gnus-search-engine
>> 		  gnus-search-namazu
>> 		  remove-prefix "/home/bronger/Mail"
>> 		  index-directory "/var/lib/namazu/"))))
>
> But this does not call namazu for me.  The above 'nnir-search-engine
> based config does, however.

I withdraw this statement for the time being.  I seem to have other
issues with my configuration that I first have to sort out.

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Stefan Kangas]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Torsten Bronger writes:
>
>> [...]
>>>
>>> (setq gnus-secondary-select-methods
>>>       '((nnml "" (gnus-search-engine
>>> 		  gnus-search-namazu
>>> 		  remove-prefix "/home/bronger/Mail"
>>> 		  index-directory "/var/lib/namazu/"))))
>>
>> But this does not call namazu for me.  The above 'nnir-search-engine
>> based config does, however.
>
> I withdraw this statement for the time being.  I seem to have other
> issues with my configuration that I first have to sort out.

It seems like Eric Abrahamsen fixed a bug here.  Is there anything more
to do here, or should this be closed?

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Stefan Kangas writes:

> [...]
>
> It seems like Eric Abrahamsen fixed a bug here.  Is there anything
> more to do here, or should this be closed?

I still get the "Group nnselect:nnselect-87zgx43sbz.fsf contains no
messages" error if I hit "G G" in the group buffer – while the
cursor is on one of my nnml groups – and enter some random query.

The binary "namazu" is replaced with the shell script I mentioned
earlier.  For your convenience, here is its content again:

    #!/bin/sh

    cat <<EOF
    1. =?utf-8?q?LABORLEITER_F=C3=9CR_DIE_QUALIT=C3=84TSSICHERUNG_=28M/W=29_-_Michael_Page?= (score: 37)
    /home/bronger/Mail/Jobs/11147 (76,989 bytes)




    2. =?utf-8?q?LABORLEITER_F=C3=9CR_DIE_QUALIT=C3=84TSSICHERUNG_=28M/W=29_-_Michael_Page?= (score: 37)
    /home/bronger/Mail/Jobs/11140 (76,991 bytes)




    3. =?utf-8?q?Trainee_-_Projektleitung_Brandenburg_=28m/w=29_/_00664_-_ThyssenKrupp_Steel_Europe_A=E2=80=A6?= (score: 36)
    /home/bronger/Mail/Jobs/12450 (74,161 bytes)




    EOF

I am sure that this script is actually called by Gnus, however, Gnus
does not seem to digest the output properly.  Emacs’ debug output is
too little to say more.  If you have advice for me about how to
proceed, I am happy to do so.

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Stefan Kangas writes:
>
>> [...]
>>
>> It seems like Eric Abrahamsen fixed a bug here.  Is there anything
>> more to do here, or should this be closed?
>
> I still get the "Group nnselect:nnselect-87zgx43sbz.fsf contains no
> messages" error if I hit "G G" in the group buffer – while the
> cursor is on one of my nnml groups – and enter some random query.

Sorry this is still happening -- I'll have time this weekend to check it out.

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Stefan Kangas writes:
>
>> [...]
>>
>> It seems like Eric Abrahamsen fixed a bug here.  Is there anything
>> more to do here, or should this be closed?
>
> I still get the "Group nnselect:nnselect-87zgx43sbz.fsf contains no
> messages" error if I hit "G G" in the group buffer – while the
> cursor is on one of my nnml groups – and enter some random query.
>
> The binary "namazu" is replaced with the shell script I mentioned
> earlier.  For your convenience, here is its content again:

This is still working fine for me, using the sample config I provided
earlier. Can you show me your exact configuration for this server? And
the "nnselect-run" error message from *Messages*, which should be formed
as "nnselect-run: %s on %s gave error %s"? I'm also about to push a
change which will let you toggle debug on error and get a backtrace, as
usual.

Thanks,
Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> [...]  Can you show me your exact configuration for this server?

The relevant part is, I think:

(setq gnus-secondary-select-methods
      '((nnml "" (gnus-search-engine
		  gnus-search-namazu
		  remove-prefix "/home/bronger/Mail"
		  index-directory "/var/lib/namazu/"))))

I’m happy to post the rest of my .gnus and .emacs somewhere if
helpful.

> And the "nnselect-run" error message from *Messages*, which should
> be formed as "nnselect-run: %s on %s gave error %s"?

In *Messages*, it says:

nnselect-run: gnus-search-run-query on ((search-query-spec (query . +from:aixasset@web.de) (raw)) (search-group-spec (nnml: nnml:KFA-FBL))) gave error (wrong-type-argument stringp nil)

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Eric Abrahamsen writes:
>
>> [...]  Can you show me your exact configuration for this server?
>
> The relevant part is, I think:
>
> (setq gnus-secondary-select-methods
>       '((nnml "" (gnus-search-engine
> 		  gnus-search-namazu
> 		  remove-prefix "/home/bronger/Mail"
> 		  index-directory "/var/lib/namazu/"))))
>
> I’m happy to post the rest of my .gnus and .emacs somewhere if
> helpful.

I'm assuming you've also got `gnus-search-namazu-raw-queries-p' set to
t, otherwise you would have hit an error earlier than this.

>> And the "nnselect-run" error message from *Messages*, which should
>> be formed as "nnselect-run: %s on %s gave error %s"?
>
> In *Messages*, it says:
>
> nnselect-run: gnus-search-run-query on ((search-query-spec (query .
> +from:aixasset@web.de) (raw)) (search-group-spec (nnml:
> nnml:KFA-FBL))) gave error (wrong-type-argument stringp nil)

Bah, this is difficult to debug -- it's hard to guess what string is
nil.

Earlier in the day I pushed a change to Emacs master to use
`condition-case-unless-debug' in `nnselect-run'. If you're in the habit
of running a recent Emacs, would you pull from source and rebuild, then
`toggle-debug-on-error' and run this search again, posting the
backtrace?

If you're not, you could just eval the following, then do the same
(toggle-debug-on-error, etc)

(defun nnselect-run (specs)
  "Apply nnselect-function to nnselect-args from SPECS.
Return an article list."
  (let ((func (alist-get 'nnselect-function specs))
	(args (alist-get 'nnselect-args specs)))
    (condition-case-unless-debug err
	(funcall func args)
      (error (gnus-error 3 "nnselect-run: %s on %s gave error %s" func args err)
	     []))))

Thanks for your help, and patience.

Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> [...]
>
> I'm assuming you've also got `gnus-search-namazu-raw-queries-p'
> set to t, otherwise you would have hit an error earlier than this.

No, but I did now.

> [...]
>
> Earlier in the day I pushed a change to Emacs master to use
> `condition-case-unless-debug' in `nnselect-run'. If you're in the
> habit of running a recent Emacs, would you pull from source and
> rebuild, then `toggle-debug-on-error' and run this search again,
> posting the backtrace?

Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  file-readable-p(nil)
  #f(compiled-function (engine server query &optional groups) #<bytecode -0x1512e15628ab6a16>)(#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  apply(#f(compiled-function (engine server query &optional groups) #<bytecode -0x1512e15628ab6a16>) #<gnus-search-namazu gnus-search-namazu-156189856662> ("nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL")))
  gnus-search-indexed-parse-output(#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  #f(compiled-function (engine server query groups) "Run QUERY against SERVER using ENGINE.\nThis method is common to all indexed search engines.\n\nReturns a list of [group article score] vectors." #<bytecode -0x14990fb58c523306>)(#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  apply(#f(compiled-function (engine server query groups) "Run QUERY against SERVER using ENGINE.\nThis method is common to all indexed search engines.\n\nReturns a list of [group article score] vectors." #<bytecode -0x14990fb58c523306>) (#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL")))
  #f(compiled-function (&rest cnm-args) #<bytecode 0xf8e552620c26b56>)()
  #f(compiled-function (cl--cnm e server query groups) #<bytecode -0xee958af24c64d80>)(#f(compiled-function (&rest cnm-args) #<bytecode 0xf8e552620c26b56>) #<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  apply(#f(compiled-function (cl--cnm e server query groups) #<bytecode -0xee958af24c64d80>) #f(compiled-function (&rest cnm-args) #<bytecode 0xf8e552620c26b56>) (#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL")))
  #f(compiled-function (&rest args) #<bytecode 0xda2e1934f892579>)(#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  apply(#f(compiled-function (&rest args) #<bytecode 0xda2e1934f892579>) #<gnus-search-namazu gnus-search-namazu-156189856662> ("nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL")))
  gnus-search-run-search(#<gnus-search-namazu gnus-search-namazu-156189856662> "nnml:" ((query . "+from:adshhg@web.de") (raw)) ("nnml:KFA-FBL"))
  #f(compiled-function (arg0) #<bytecode -0x9685499bb4f6a22>)(("nnml:" "nnml:KFA-FBL"))
  mapc(#f(compiled-function (arg0) #<bytecode -0x9685499bb4f6a22>) (("nnml:" "nnml:KFA-FBL")))
  gnus-search-run-query(((search-query-spec (query . "+from:adshhg@web.de") (raw)) (search-group-spec ("nnml:" "nnml:KFA-FBL"))))
  nnselect-run(((nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "+from:adshhg@web.de") (raw)) (search-group-spec ("nnml:" "nnml:KFA-FBL")))))
  nnselect-request-group("nnselect-87tun1dhn9.fsf" "nnselect-ephemeral" t ("nnselect:nnselect-87tun1dhn9.fsf" 3 nil nil (nnselect "nnselect-ephemeral" (nnselect-address "nnselect")) ((quit-config #<buffer *Group*> . group) (nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "+from:adshhg@web.de") (raw)) (search-group-spec ("nnml:" "nnml:KFA-FBL")))) (nnselect-artlist))))
  gnus-request-group("nnselect:nnselect-87tun1dhn9.fsf" t nil ("nnselect:nnselect-87tun1dhn9.fsf" 3 nil nil (nnselect "nnselect-ephemeral" (nnselect-address "nnselect")) ((quit-config #<buffer *Group*> . group) (nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "+from:adshhg@web.de") (raw)) (search-group-spec ("nnml:" "nnml:KFA-FBL")))) (nnselect-artlist))))
  gnus-select-newsgroup("nnselect:nnselect-87tun1dhn9.fsf" t nil)
  gnus-summary-read-group-1("nnselect:nnselect-87tun1dhn9.fsf" t t nil nil nil)
  gnus-summary-read-group("nnselect:nnselect-87tun1dhn9.fsf" t t nil nil nil nil)
  gnus-group-read-group(t t "nnselect:nnselect-87tun1dhn9.fsf" nil)
  gnus-group-read-ephemeral-group("nnselect-87tun1dhn9.fsf" (nnselect "nnselect") nil (#<buffer *Group*> . group) nil nil ((nnselect-specs (nnselect-function . gnus-search-run-query) (nnselect-args (search-query-spec (query . "+from:adshhg@web.de") (raw)) (search-group-spec ("nnml:" "nnml:KFA-FBL")))) (nnselect-artlist)))
  gnus-group-read-ephemeral-search-group(nil)
  funcall-interactively(gnus-group-read-ephemeral-search-group nil)
  call-interactively(gnus-group-read-ephemeral-search-group nil nil)
  command-execute(gnus-group-read-ephemeral-search-group)

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> Hallöchen!
>
> Eric Abrahamsen writes:
>
>> [...]
>>
>> I'm assuming you've also got `gnus-search-namazu-raw-queries-p'
>> set to t, otherwise you would have hit an error earlier than this.
>
> No, but I did now.

Oh, maybe you just had `gnus-search-use-parsed-queries' set to nil. One
way or another, the query must not be getting parsed. But that's fine!

>> [...]
>>
>> Earlier in the day I pushed a change to Emacs master to use
>> `condition-case-unless-debug' in `nnselect-run'. If you're in the
>> habit of running a recent Emacs, would you pull from source and
>> rebuild, then `toggle-debug-on-error' and run this search again,
>> posting the backtrace?
>
> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
>   file-readable-p(nil)

This just means that when namazu returns its search results, this
function fails to find a filename. In other words, the (match-string 4)
returns nil.

(cl-defmethod gnus-search-indexed-extract ((_engine gnus-search-namazu))
  "Extract a single message result for Namazu.
Namazu provides a little more information, for instance a score."

  (when (re-search-forward
	 "^\\([0-9,]+\\.\\).*\\((score: \\([0-9]+\\)\\))\n\\([^ ]+\\)"
	 nil t)
    (forward-line 1)
    (list (match-string 4)
	  (match-string 3))))

Using the example results that you send me (the bash script) the file
names are found correctly. Is there a way you can find and show me the
filename that isn't being found by this regexp? I assume it's a filename
that doesn't start with a digit. I'm not sure where this regexp came
from, originally.

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> [...]
>
>>> [...]
>>>
>>> Earlier in the day I pushed a change to Emacs master to use
>>> `condition-case-unless-debug' in `nnselect-run'. If you're in the
>>> habit of running a recent Emacs, would you pull from source and
>>> rebuild, then `toggle-debug-on-error' and run this search again,
>>> posting the backtrace?
>>
>> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
>>   file-readable-p(nil)
>
> This just means that when namazu returns its search results, this
> function fails to find a filename. In other words, the (match-string 4)
> returns nil.

I made some progress with this.  The buffer containing namazu’s
output contains trailing garbage on my system.  The tailing string
is: "Process search-nnml: finished".  This cannot be matched, of
course, which makes everything fail.

I don’t know where this comes from, though.

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eli Zaretskii]

On May 18, 2021 11:46:52 AM GMT+03:00, Torsten Bronger <bronger@physik.rwth-aachen.de> wrote:
> Hallöchen!
> 
> Eric Abrahamsen writes:
> 
> > [...]
> >
> >>> [...]
> >>>
> >>> Earlier in the day I pushed a change to Emacs master to use
> >>> `condition-case-unless-debug' in `nnselect-run'. If you're in the
> >>> habit of running a recent Emacs, would you pull from source and
> >>> rebuild, then `toggle-debug-on-error' and run this search again,
> >>> posting the backtrace?
> >>
> >> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
> >>   file-readable-p(nil)
> >
> > This just means that when namazu returns its search results, this
> > function fails to find a filename. In other words, the (match-string
> 4)
> > returns nil.
> 
> I made some progress with this.  The buffer containing namazu’s
> output contains trailing garbage on my system.  The tailing string
> is: "Process search-nnml: finished".  This cannot be matched, of
> course, which makes everything fail.
> 
> I don’t know where this comes from, though.
> 
> Regards,
> Torsten.

I think it's process exit status notification and comes from the process sentinel function.

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Eli Zaretskii <eliz@gnu.org> writes:

> On May 18, 2021 11:46:52 AM GMT+03:00, Torsten Bronger
> <bronger@physik.rwth-aachen.de> wrote:
>> Hallöchen!
>> 
>> Eric Abrahamsen writes:
>> 
>> > [...]
>> >
>> >>> [...]
>> >>>
>> >>> Earlier in the day I pushed a change to Emacs master to use
>> >>> `condition-case-unless-debug' in `nnselect-run'. If you're in the
>> >>> habit of running a recent Emacs, would you pull from source and
>> >>> rebuild, then `toggle-debug-on-error' and run this search again,
>> >>> posting the backtrace?
>> >>
>> >> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
>> >>   file-readable-p(nil)
>> >
>> > This just means that when namazu returns its search results, this
>> > function fails to find a filename. In other words, the (match-string
>> 4)
>> > returns nil.
>> 
>> I made some progress with this.  The buffer containing namazu’s
>> output contains trailing garbage on my system.  The tailing string
>> is: "Process search-nnml: finished".  This cannot be matched, of
>> course, which makes everything fail.
>> 
>> I don’t know where this comes from, though.
>> 
>> Regards,
>> Torsten.
>
> I think it's process exit status notification and comes from the
> process sentinel function.

Huh, I'm surprised this hasn't been an issue before, then. It looks like
that message is standard for any start-process/accept-process-output
situation. Is there any way to shut it off?

Regardless, the output parsing shouldn't be so fragile that it chokes on
this. I'll look into making it more robust.

Thanks,
Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eli Zaretskii]

> From: Eric Abrahamsen <eric@ericabrahamsen.net>
> Cc: 46047@debbugs.gnu.org,  bronger@physik.rwth-aachen.de
> Date: Tue, 18 May 2021 09:50:00 -0700
> 
> > I think it's process exit status notification and comes from the
> > process sentinel function.
> 
> Huh, I'm surprised this hasn't been an issue before, then. It looks like
> that message is standard for any start-process/accept-process-output
> situation. Is there any way to shut it off?

The only way I know of is to provide your own sentinel function.

> Regardless, the output parsing shouldn't be so fragile that it chokes on
> this. I'll look into making it more robust.

Agreed, and thanks in advance.

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

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Eli Zaretskii <eliz@gnu.org> writes:

>> From: Eric Abrahamsen <eric@ericabrahamsen.net>
>> Cc: 46047@debbugs.gnu.org,  bronger@physik.rwth-aachen.de
>> Date: Tue, 18 May 2021 09:50:00 -0700
>> 
>> > I think it's process exit status notification and comes from the
>> > process sentinel function.
>> 
>> Huh, I'm surprised this hasn't been an issue before, then. It looks like
>> that message is standard for any start-process/accept-process-output
>> situation. Is there any way to shut it off?
>
> The only way I know of is to provide your own sentinel function.
>
>> Regardless, the output parsing shouldn't be so fragile that it chokes on
>> this. I'll look into making it more robust.
>
> Agreed, and thanks in advance.

Torsten, if you have a moment, would you try the attached diff and
confirm that it fixes the problem you're seeing?

Thanks,
Eric



[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: searchparsing.diff --]
[-- Type: text/x-patch, Size: 740 bytes --]

diff --git a/lisp/gnus/gnus-search.el b/lisp/gnus/gnus-search.el
index a59d0e57a7..fc9f8684f6 100644
--- a/lisp/gnus/gnus-search.el
+++ b/lisp/gnus/gnus-search.el
@@ -1358,9 +1358,12 @@ gnus-search-indexed-parse-output
 			 "\\|")))
 	artlist vectors article group)
     (goto-char (point-min))
-    (while (not (eobp))
+    (while (not (or (eobp)
+                    (looking-at-p
+                     "\\(?:[[:space:]\n]+\\)?Process .+ finished")))
       (pcase-let ((`(,f-name ,score) (gnus-search-indexed-extract engine)))
-	(when (and (file-readable-p f-name)
+	(when (and f-name
+                   (file-readable-p f-name)
 		   (null (file-directory-p f-name))
 		   (or (null groups)
 		       (and (gnus-search-single-p query)

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Torsten Bronger]

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Hallöchen!

Eric Abrahamsen writes:

> [...]
>
> Torsten, if you have a moment, would you try the attached diff and
> confirm that it fixes the problem you're seeing?

Yes, with the patch it works.  Thank you!

Regards,
Torsten.

-- 
Torsten Bronger

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bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Torsten Bronger <bronger@physik.rwth-aachen.de> writes:

> --=-=-=
> Content-Type: text/plain; charset=iso-8859-1
> Content-Transfer-Encoding: quoted-printable
>
> Hall=F6chen!
>
> Eric Abrahamsen writes:
>
>> [...]
>>
>> Torsten, if you have a moment, would you try the attached diff and
>> confirm that it fixes the problem you're seeing?
>
> Yes, with the patch it works.  Thank you!

Great news! Thanks for the very quick test. Closing this now.

Eric

bug#46047: 28.0.50; Namazu-based mail searching not working anymore

[Eric Abrahamsen]

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

> Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>
>> Hallöchen!
>>
>> Eric Abrahamsen writes:
>>
>>> [...]
>>>
>>> Thanks for the report. I haven't provided obsolete aliases for all of
>>> the old nnir-<engine>-* variables, as that would be quite a pile, but if
>>> that's annoying to enough people I can.
>>
>> Thank you for your quick reaction.  FWIW, I don’t care about
>> reverting.  If I find a solution that only works with newest Emacs,
>> that’s fine.  However, this is only me.

Also, the Namazu search code was pretty hard to write, mostly because
everything is so poorly documented. Please file more bugs if anything
seems even slightly off.

Thanks!
Eric