Use bootc-utils for command helpers

[cgwalters]

This enables more code sharing. I didn't do a full port here, but this starts the ball rolling. In particular I think run_and_parse_json() is nice and elegant.

[HuijingHei]

LGTM, so fast.

[HuijingHei]

Maybe in future, also refactor the CommandRunExt into a separate internal crate and publish? Before that, agree it is the fastest way to use it.

[travier]

Are we planning to publish this as an independent crate on crates.io? Otherwise I can see this causing problem with packaging in Fedora unless we vendor things which we don't do generally.

[cgwalters]

Are we planning to publish this as an independent crate on crates.io?

Maybe.

Otherwise I can see this causing problem with packaging in Fedora unless we vendor things which we don't do generally.

Some projects for sure do, I think as you know I personally disagree with the approach for about 60% of the Fedora Rust packaging. And bootupd does vendor consistently across both Fedora+RHEL right now: https://src.fedoraproject.org/rpms/rust-bootupd/blob/rawhide/f/rust-bootupd.spec#_13

[travier]

I disagree as well with the no-vendoring approach. I hadn't checked that we already vendor the code so that should not be an issue. Thanks