pgrep/pkill/pidwait: Support --uid, --euid & --group options

[dezgeg]

No description provided.

[Krysztal112233]

Could you sync the changes of process.rs into https://github.com/uutils/coreutils/blob/main/src/uucore/src/lib/features/process.rs? This file will be migrated into uucore in future :)

[dezgeg]

Could you sync the changes of process.rs into https://github.com/uutils/coreutils/blob/main/src/uucore/src/lib/features/process.rs? This file will be migrated into uucore in future :)

Added here: uutils/coreutils#7351

Is there some timeline for the migration? Probably makes sense to get the process module in procps as complete as possible before migration, as it will make considerably more difficult to add new features to procps (as then new features might need to wait for uucore to make a release)

[Krysztal112233]

Is there some timeline for the migration?

If possible, the migration will start when tools that depend on pgrep are almost available. Actually I don't know the timeline although it was planned last year by me :(. So just continue your work and I will make pull request to do this job before migration.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (2e5bbed) to head (ef22c48).
Report is 12 commits behind head on main.

Additional details and impacted files

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[cakebaker]

@dezgeg thanks!

Regarding moving process.rs to coreutils: currently I don't see what the benefit is. And I agree with @dezgeg that it would make working on this project rather inflexible.