bug#66553: bug#66576: Request for merging "rust-team" branch

[Efraim Flashner <efraim@flashner.co.il>]

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On Tue, Oct 17, 2023 at 11:41:11AM -0400, Maxim Cournoyer wrote:
> Hi Efraim,
> 
> Efraim Flashner <efraim@flashner.co.il> writes:
> 
> > IMO rust-team branch is ready to merge. We've updated rust to 1.70,
> > librsvg to 2.56.4 and many new and updated packages. We've added a phase
> > to the cargo-build-system to fail if it detects pre-built files and
> > we've set the cargo-build-system to skip the test phase by default,
> > allowing us to make sure that the packages have the correct inputs. With
> > these changes I've gotten 100% of the packages built using the
> > cargo-build-system to build successfully.
> 
> This sounds good except I don't understand how disabling the tests by
> default help to "make sure that the packages have the correct inputs" ?
> 
> You've explained the rationale here:
> <https://lists.gnu.org/archive/html/guix-devel/2023-10/msg00182.html>,
> saying we sometimes use a newer Rust than the package tests are
> expecting; how does it work in the Rust world?  Don't they always build
> even older versions against the most recent compiler?  What about the
> test suites then?  Are these not typically run by users/distributions?

I've copied your questions to the thread above and answered them there
so we can keep the discussion in one place.

> For one thing the 'guix lint' command would need to be told that
> cargo-build-system has #:tests? set to #f by default to not warn without
> reasons that '#:tests? #t' is unnecessary.

I've reverted it for now so we can get the rust-team branch merged and
continue discussing if this is a good idea or not.

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Efraim Flashner   <efraim@flashner.co.il>   רנשלפ םירפא
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