GNU bug report logs - #50618
[PATCH] import: stackage: Don’t try to update packages not available on Stackage.

Previous Next

Full log

Message #8 received at 50618 <at> debbugs.gnu.org (full text, mbox):

From: Lars-Dominik Braun <lars <at> 6xq.net>
To: Xinglu Chen <public <at> yoctocell.xyz>
Cc: 50618 <at> debbugs.gnu.org
Subject: Re: [bug#50618] [PATCH] import: stackage: Don’t try to update packages
 not available on Stackage.
Date: Wed, 22 Sep 2021 08:07:32 +0200

Hi,

> +(define (stackage-package? package)
> +  "Whether PACKAGE is available on the default Stackage LTS release."
> +  (and (hackage-package? package)
> +       (guard (c ((and (http-get-error? c)
> +                       (= 404 (http-get-error-code c)))
> +                  #f))
> +         (let* ((name (guix-package->hackage-name package))
> +                (url (string-append (%stackage-url) "/lts-"
> +                                    %default-lts-version "/package/" name)))
> +           (http-fetch url)))))
> +
since stackage-lts-info-fetch is memoized, wouldn’t it be cheaper
to look up the package there? (At least for lots of packages.)

Cheers,
Lars

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.