bug#33272: guix refresh/download backtrace error when missing nss-certs

[swedebugia]

Hi

On 2018-11-05 21:26, Leo Famulari wrote:
> On Mon, Nov 05, 2018 at 12:16:08PM +0100, swedebugia wrote:
> IMO a better solution is to catch the error and print an informative
> message. Already, the error message at the end is coming from Guix, but
> we should hide the backtrace and add a hint towards a solution.
>
> I think handling the TLS error gracefully is orthogonal to whether or
> not nss-certs is installed.
Agreed.
> There are other X.509 certificate collections available on the systems
> that Guix supports, and even some Guix packages use their own
> collections. Also, programs that need to look up certificates tend to
> find them via environment variables, so if one wanted to use nss-certs,
> it's not enough just to install it.
>
> https://www.gnu.org/software/guix/manual/en/html_node/X_002e509-Certificates.html

Sounds like a good idea.

How do we catch the error?

--
Cheers
Swedebugia