I've recently published a plugin for running basedpyright type checking during

pants check

to avoid managing Node.js for pure python projects. https://github.com/jacoblearned/pants-basedpyright I'd like to add optional support for its baseline feature which would require writing the output files from a

VenvPexProcess

back to disk, but it seems there's no way to get a handle to the

workspace

during

CheckRequest

executions to write the baseline file safely (for good reason). Is my main option here to implement a custom

@goal_rule

to run separately from

pants check

that collects output digests from

CheckResults

and then write those to disk?

I don't think you'd necessarily need to write a goal_rule. I wonder if you could shim that functionality into the lint/fix goal, which does allow doing what you're talking about. In this case, you're specifically writing to/from one file, right?

Yeah, I'd be writing to a single file right now. I think supporting this via the fix goal makes some sense. I'll see how implementing it there turns out, thanks!

It's possible

ruff

might be a decent place to start, we use it for formatting and linting - but the point being, we use it for 2 things