Re: nnir with notmuch gives error; sort: Wrong type argument: number-or-marker-p, nil

[physiculus]

xuqi <haoyang@expoundite.net> writes:

Hello,
thank you for your info.
Unfortunately i'm not a developer, so i don't understand all you wrote.
As far as i understand, you mean, that the problem is with notmuch?
But why is it working, if i call the command in terminal directly.
Perhaps some parameters, that push gnus to notmuch?

Regards
Poul


> physiculus <physiculus@gmail.com> writes:
>
>> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>>
>> Hello,
>>
>> here is the output from the debugger.
>> I dont know, what it mean, but i think you do :-)
>>
>> Hope it helps!
>>
>>
>> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
>>   <(nil nil)
>>   sort((nil) <)
>>   nnir-retrieve-headers((1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
>> 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
>> 42 43 44 45 46 47 48 49 50 ...) "nnir-87zhckegiv.fsf" "nnir-ephemeral"
>> nil)
>
> A look at the source code of function `nnir-retrieve-headers' would
> help. You can find the code by pressing C-h f RET nnir-retrieve-headers
> and click `nnir.el' in the help buffer.
>
> At the front of this function you will see a call to the function
> `sort':
>
>       (let* ((group-articles (pop articles-by-group))
>              (artgroup (car group-articles))
>              (articleids (cadr group-articles))
>              (artlist (sort (mapcar 'cdr articleids) '<))
>                          ~~~~
>              (server (gnus-group-server artgroup))
>                ...
>
> The error message tells us that the 1st argument of `sort', (mapcar 'cdr
> articleids) returns a list of nils. This involves a bunch of variables
> and list operations, but by the documentation of `nnir-categorize' we
> can infer that the structure of `group-articles' look like this:
>
>     '((group1
>         ((nnir-article-ids article11)
>          (nnir-article-ids article12)
>          ...))
>       (group2
>         ((nnir-article-ids article21)
>          (nnir-article-ids article22)
>          ...))
>       (group3
>         ...))
>
> So `articleids' are this part: (nnir-article-ids article11)
>
> and `artlist' should be a list like this '(article11 article12 article21
> ...)
>
> In this case, the first argument to `nnir-categorize' may be nil, thus
> article11 ... are all nils, so you get a list of nils.
>
> The most likely reason therefore is that notmuch can't produce a list of
> articles with your search conditions. I haven't used notmuch with gnus
> so I can only provide a guess.
>
>>   gnus-retrieve-headers((1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
>> 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
>> 42 43 44 45 46 47 48 49 50 ...) "nnir:nnir-87zhckegiv.fsf" nil)
>>   gnus-cache-retrieve-headers((1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
>> 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
>> 40 41 42 43 44 45 46 47 48 49 50 ...) "nnir:nnir-87zhckegiv.fsf" nil)
>>   gnus-retrieve-headers((1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
>> 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
>> 42 43 44 45 46 47 48 49 50 ...) "nnir:nnir-87zhckegiv.fsf" nil)
>>   gnus-fetch-headers((1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 
>> 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 
>> 47 48 49 50 ...))
>>   gnus-select-newsgroup("nnir:nnir-87zhckegiv.fsf" t nil)
>>   gnus-summary-read-group-1("nnir:nnir-87zhckegiv.fsf" t t nil nil nil)
>>   gnus-summary-read-group("nnir:nnir-87zhckegiv.fsf" t t nil nil nil nil)
>>   gnus-group-read-group(t t "nnir:nnir-87zhckegiv.fsf" nil)
>>   gnus-group-read-ephemeral-group("nnir-87zhckegiv.fsf" (nnir "nnir")
>> nil nil nil nil ((nnir-specs (nnir-query-spec (query . "hock"))
>> (nnir-group-spec ("nnmaildir:Lokal")))))
>>   gnus-group-make-nnir-group(nil)
>>   funcall-interactively(gnus-group-make-nnir-group nil)
>>   call-interactively(gnus-group-make-nnir-group nil nil)
>>   command-execute(gnus-group-make-nnir-group)
>>
>>> physiculus <physiculus@gmail.com> writes:
>>>
>>>> Hello,
>>>> if i try to use search with notmuch my nnmaildir, i get the error above.
>>>> here are the lines from messages:
>>>> Opening nnir server on nnir-ephemeral...done
>>>> Retrieving newsgroup: nnir:nnir-877dzp783m.fsf...
>>>> Doing notmuch query Hock...
>>>> notmuch args: search --format=text --output=files Hock
>>>> Massaging notmuch output...done
>>>> Fetching headers for nnir:nnir-877dzp783m.fsf...
>>>> sort: Wrong type argument: number-or-marker-p, nil
>>>
>>> Can you run M-x toggle-debug-on-error, then trigger this error again,
>>> and send the backtrace to the list?
>>>
>>> Thanks,
>>> Eric
>>>
>>>
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