[bug#56092] [PATCH] challenge: Do nothing when passed zero arguments.

[Ludovic Courtès]

Hi,

Maxime Devos <maximedevos@telenet.be> skribis:

> Ludovic Courtès schreef op zo 19-06-2022 om 15:55 [+0200]:
>> Hi!
>> 
>> This changes ‘guix challenge’ such that, with no arguments, it does
>> nothing, which is arguably less confusing that the current behavior.
>
> Having "guix challenge" be able to check your entire store for
> reproducibility seemed a nifty feature to me.  E.g., it's as good a
> starting point as any to look for which packages need some
> reproducibility fixes.

It seemed to make sense back then, when the store was typically much
smaller.  Today it’s no longer a reasonable default as you write.

> I agree that doing the _entire store_ by _default_ is a bit much, but
> I'd like the old behaviour to be still available somewhere (guix
> challenge --all-local-things?)

It can be approximated with ‘guix challenge $(guix gc --list-live)’.
It’s not exactly the same: things not built locally are also included.
But I find that it’s just as useful.

So I’d lean towards not adding an option for that.

WDYT?

Ludo’.

PS: What would be useful is a ‘--manifest’ option—future work!