bug#32017: import: elpa: Check if 'fetch-elpa-package' rest argument is null.

[Oleg Pykhalov]

Hello Ludovic,

Thank you for review and improvements.

address@hidden (Ludovic Courtès) writes:

> Oleg Pykhalov <address@hidden> skribis:
>
>> From 5b06ab52ada54fc4c42c87400a7b635843cf1542 Mon Sep 17 00:00:00 2001
>> From: Oleg Pykhalov <address@hidden>
>> Date: Sat, 30 Jun 2018 10:51:45 +0300
>> Subject: [PATCH] import: elpa: Check if 'fetch-elpa-package' rest argument is
>>  null.
>>
>> * guix/import/elpa.scm (fetch-elpa-package): Check if 'rest' is null.
>> ---
>>  guix/import/elpa.scm | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/guix/import/elpa.scm b/guix/import/elpa.scm
>> index 65e0be45a..869e70ee2 100644
>> --- a/guix/import/elpa.scm
>> +++ b/guix/import/elpa.scm
>> @@ -187,7 +187,7 @@ include VERSION."
>>               (url (package-source-url kind name ver repo)))
>>           (make-elpa-package name ver
>>                              (ensure-list reqs) synopsis kind
>> -                            (package-home-page (first rest))
>> +                            (package-home-page (if (null? rest) #f (first 
>> rest)))
>>                              (fetch-package-description kind name repo)
>
> As per our coding style guidelines (info "(guix) Data Types and Pattern
> Matching"), it would be best to write:
>
>   (match rest
>     (() #f)
>     ((one) one))
>
> Otherwise LGTM, thanks!

OK, pushed as ae6fa00af02399e2ffadccc81bd7718cc7c26f10

Oleg.

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