[bug#40643] [PATCH] git-version: Handle invalid arguments gracefully

[Ludovic Courtès]

Hi Jakub,

Jakub Kądziołka <address@hidden> skribis:

> * guix/git-download.scm (git-version): Add a check for commit ID length.
> ---
> If you're curious for the motivation, see [1]. This took a while to
> debug, so I'm hoping to ease this for the next person who inevitably
> stumbles upon this. Is a change like this okay?

Yes, I think so.  The ‘error’ procedure is not great, we would rather
use ‘raise’ with a ‘&message’ condition (which additionally allows for
i18n) but it’s no big deal here.

Thanks,
Ludo’.