Stream test logs to custom test runner

[cbarrete]

Hello,

I'm looking into writing a custom test runner for the purpose of better integrating with CI. The two features that I care most about right now are segregating test outputs and retriggering of specific tests.

I was wondering what the recommended way of streaming test outputs was. It seems like orchestrator_client.execute2 only provides execution responses once the test is done, which does not let users follow ongoing test executions.

It seems like a custom TestExecutor doesn't have those capabilities. I've also started to look into writing a custom orchestrator, but that looks like a significantly bigger endeavor.

[cbarrete]

I have just learned about Bazel's Remote Logstream API, which might be of interest to people reading this issue.
Is it planned for Buck2 to eventually implement this API, or otherwise provide similar functionality?