jest-config: use UID for default cache folder #3380
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cpojer
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Summary
It appears in some contexts,
os.tmpdir()doesn't make a difference between different users. As a result, you can run some script that runsjest-runtimeonce usingroot, then later using a non-privileged user; this crashes because that user is unable to write files owned byroot. Separating by UID helps avoiding permission conflicts on files created by the cache logic.Test plan
Automated testing. Would you suggest a particular test plan for this?