support running inside of a worker thread #37
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Hey! 👋
Jest uses this module to write cached files to disk from within workers. It works great with
child_process.spawn
, but it doesn't work from withinworker_threads
due toprocess.pid
being shared between the main thread and all its workers.This PR will check if it's being run from within a worker, and if so, use
worker_threads.threadId
, which should be unique.I've put together an example over in jestjs/jest#7680 whch shows
process.pid
being identical. We're super close to a release, so for now I've just copied over the source from this project into our own module - would love for you to merge this (or otherwise fix it), though! 🙂