Re: [PATCH 7/7] github_workflows: install rust

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On 2025-07-17 at 20:32:24, Ezekiel Newren via GitGitGadget wrote:
> diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
> index 7dbf9f7f123c..8aac18a6ba45 100644
> --- a/.github/workflows/main.yml
> +++ b/.github/workflows/main.yml
> @@ -4,6 +4,7 @@ on: [push, pull_request]
>  
>  env:
>    DEVELOPER: 1
> +  RUST_VERSION: 1.87.0

Our discussed plan is to support the version in Debian stable, plus a
year.  So we'd be supporting 1.63.0 for a year after trixie's release.

The reason for that is that people build backports and security updates
for Git for stable releases of distros and they will use the distro
toolchain for doing so.  Forcing distros to constantly build with the
latest toolchain is pretty hostile, especially since the lifespan of
Rust release is six weeks.

If the Rust project provides LTS releases in the future, then we can
consider adopting those.

> +if [ "$rust_target" = "release" ]; then
> +  rust_args="--release"
> +  export RUSTFLAGS='-Aunused_imports -Adead_code'
> +elif [ "$rust_target" = "debug" ]; then
> +  rust_args=""
> +  export RUSTFLAGS='-Aunused_imports -Adead_code -C debuginfo=2 -C opt-level=1 -C force-frame-pointers=yes'

Can you say a little about why these options are needed and the defaults
are inadequate?  For instance, I build with the default options both in
my personal projects and at work and don't see a problem.

I don't know if you plan to do this in a future series, but we'd also
want cargo's tests to be run as part of CI and we'd want a lint job that
ran clippy with both 1.63.0 and the latest stable version of Rust to
make sure things were tidy.
-- 
brian m. carlson (they/them)
Toronto, Ontario, CA

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