I just found out (the hard way) that Bazel seemingly sets

TZ=UTC

env variable for tests. What's the groups thoughts on this? Do we think it'd increase or hurt hermecity?

Or neither..?

Can you elaborate?

.. meaning that it does neither help nor hurt hermeticity. Hermeticity is about leaking, right? in our case, leaking data. Providing a env var with a fixed value that merely specifies a timezone doesn’t feel like it’s leaking anything. If you however simply forwarded the current value of

TZ

from the host where it is executing, would be a data leak, as I see it.

Well the lack of the env could leaksome detail as a (admittedly nasty) test could be timezone-specific. Passes on one machine, fails on another.

I'm not sure we should be in the business of deciding what timezones peoples' tests should assume? We allow individual repos to expose env vars to tests, is that not sufficient?

I think it is. Just fishing for thoughts since it's kind of a weird circumstance. I'm trying to decide if I should be "fixing" a test or setting the env for everyone 🤔

For everyone in your repo, or for everyone in the Pantsiverse?

My repo. Also lol at "pantsiverse"

Oh then setting an env var at the scope of your repo seems totally reasonable!