how can I view the logs generated from pants while testing my plugin? I’ve tried setting

-ldebug

,

--logdir

and

--keep-sandboxes=always

via

rule_runner.set_options

but haven’t actually been able to find the logs

I’m on mobile, so can’t help a lot… but two things I would try are: 1. Use the pytest caplog fixture 2. search in the pants code base for tests that do something with logging and see how its handled there (all test files end with

_test.py

)

thanks! adding the caplog and increasing the log level was enough for me to debug

def test_foo(rule_runner: RuleRunner, caplog) -> None:
    caplog.set_level(logging.DEBUG)

when writing tests that use the

RuleRunner

, decorating your test with

pantsbuild.testutil.rule_runner.logging

is usually also helpful: https://github.com/pantsbuild/pants/blob/ef0352086e1290c0ebf73808d2fd5fc4aa37d96e/src/python/pants/testutil/rule_runner.py#L74-L92

oh nice, looks like that provides all the logs, while the caplog version only captures a subset