Mossa,
the issue you cite is lacking any pertinent information and it's not even
clear why it should be an issue. The check is perfectly justified, it just
reports whether a package using rust declares this correctly and where it
downloads 3rd party content - something that is important to R users in general
and not related to CRAN. I don't see how any of this is
"prohibitive" it just calls out what the package is already doing.
As discussed before, my hope was that the "R"ust community will mature
enough to work on proper support. It is not clear that it happened yet, but once
it does it would make sense to talk about support just as we have for C, C++ and
Java, so certainly that should be the right discussion. However, it will have to
start with some thinking and a proposal on how the associated issues (compiler
support, versioning, dependency sources etc.) are to be addressed, as opposed to
making random demands. All this has nothing to do with CRAN so the issue you
mention seems irrelevant to the progress. Also I'd like to know what are the
"challenges embedded in R itself".
Cheers,
Simon
> On Mar 2, 2025, at 8:45 AM, Mossa Merhi Reimert via R-devel <r-devel at
r-project.org> wrote:
>
> Hello everyone!
>
> I'm Mossa, I'm one of the maintainers of extendr, an automated
generation of bindings project for
> Rust code, for use in R-packages.
>
> I'm writing to you, as R 4.4.3 was just released, and there have not
been
> follow-up on an issue important to us. Link to the issue as discussed on
r-devel
> https://stat.ethz.ch/pipermail/r-devel/2024-October/083666.html
>
> A community member has provided a suggestion to a patch here
https://github.com/r-devel/r-svn/pull/182, and we have also attempted to bring
it up on
> Bugzilla: https://bugs.r-project.org/show_bug.cgi?id=18806
>
> TLDR: Default `R CMD check` uses additional CRAN-specific checks for Rust,
> instead of keeping this behind the --as-cran flag.
>
> I would like to say, that there is a growing interest in Rust within the R
community.
> And generally, Rust becoming a widely adopted language within the Python
community (including the scientific part of that community). It is time to deal
with the
> pain points with using Rust in R.
>
> Therefore, I would kindly ask that we have a dialogue on how to remedy the
issue above first, and how we may deal with other issues going forward. There
are both challenges embedded in R itself, and the current CRAN policy for Rust
is prohibitive.
>
>
>
> Mossa Merhi Reimert
> Postdoctoral Researcher
>
> K?benhavns Universitet
> Department of Veterinary and Animal Sciences
> Animal Welfare and Disease Control
> Gr?nneg?rdsvej 8
> 1870 Frederiksberg C
> Denmark
>
> +45 35324135
> mossa at sund.ku.dk<mailto:mossa at sund.ku.dk>
>
>
> [[alternative HTML version deleted]]
>
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