Re: guix build--rounds=N does not behave as expected

[swedebugia <swedebugia@riseup.net>]

On 2018-12-31 13:27, Ricardo Wurmus wrote:
> 
> Hi swedebugia,
> 
> “guix build --rounds=N” builds the package N times if it hasn’t already
> been built.  With grafts enabled this would be the graft derivation,
> which isn’t very useful.
> 
> If the package has previously been built, however, it won’t rebuild the
> package.  That’s why we have “--check”.
> 
>> I really think we should signal a helpful error to the user if only
>> --rounds=N is specified and --check is missing.
> 
> Using “--rounds” without “--check” is correct.  There should not be an
> error or a warning in that case.

Rounds does not seem to work.
E.g. I ran this:
$ guix build automake --check --rounds=2

and the result was this:
phase `compress-documentation' succeeded after 0.1 seconds
/gnu/store/k7gymsw2xfp20fv30x5niilwnxpj2d2k-automake-1.16.1

I think this is a bug.
Rounds should ignore the item in store and swallow check so that it does 
what the user expects.

Right now it seems that check swallows rounds and rounds alone fail 
because the item is already in the store.

Alternatively I would like that guix ask me if I want to build the 
rounds EVEN THOUGH it is in the store. But that would be less nice.

-- 
Cheers Swedebugia