env variable for disabling fs cache

[the-pawel-wojcik]

References to issues or other PRs

Quick change. No issues opened. I am fighting through the filesystem cache that numba generates. I would like to have it disabled. Please merge if you don't mind. Currently it's a hardcoded yes that cannot be configured.

Describe the proposed changes

Add an env var DCOR_DISABLE_FS_CACHE. When set the filesystem cache is disabled.

Additional information

None

Checklist before requesting a review

• I have performed a self-review of my code
• [?] The code conforms to the style used in this package
• The code is fully documented and typed (type-checked with Mypy)
• [-] I have added thorough tests for the new/changed functionality

[the-pawel-wojcik]

Here is more context
numba/numba#4549

[vnmabus]

Thanks for your contribution!

I saw that the documentation was failing for unrelated causes, so I added a patch to develop. Please rebase/merge develop to see if all tests pass now.

The changes themselves seem good. It is unfortunate that there is no "standard" way to do this, not even a recommended environment variable that we can try to honor.

The only nitpick I have is that I think it would be better to have the logic to set FS_CACHE in one place (maybe in _utils?), so that the definitions do not go out-of-sync. Could you please make that change?

[the-pawel-wojcik]

fixed. thank you!

[vnmabus]

Thanks for your contribution!

@all-contributors Add @the-pawel-wojcik for code

[allcontributors]

@vnmabus

I've put up a pull request to add @the-pawel-wojcik! 🎉