Address #319: Give a create_tmp API

[moshez]

This doesn't have docs or tests! Hooray :)

It does however show one way to implement it (kinda hacky) and a working use case for further discussion.

[moshez]

Hi @theacodes ! This is a rough draft, but I want some feedback on how much in the wrong direction am I going. Is it reasonable to assume the bin directory is writable? Should we push this API to the specific virtualenv? Is it OK to fail if bin is None? Etc.

[theacodes]

This looks like a great start.

Is it reasonable to assume the bin directory is writable?

Yup.

Should we push this API to the specific virtualenv?

Nope, I think even "virtualenvless" sessions will have use cases for the tmpdir.

Is it OK to fail if bin is None?

I think this should work even if there's no virtualenv for the session.

[moshez]

Hi @theacodes ! I added tests and documentation. I'm not sure if I understood your response to the third question -- do you mean I should have a tmpdir even without bin? In that case, I'm not sure the location would still make sense.

[theacodes]

do you mean I should have a tmpdir even without bin? In that case, I'm not sure the location would still make sense.

Yup.

I think it makes sense for it to go in .nox/{session name}/tmp.

[moshez]

OK, let me know what you think now. It should always work now.

[theacodes]

Looks good. 👌

[dhermes]

@moshez I'd love to chat about this feature and how it relates to my use / abuse of .nox/libbezier-debug and .nox/libbezier-release to cache and re-use debug and release builds of libbezier to speed up local dev for the Python parts of bezier: https://github.com/dhermes/bezier

[moshez]

@dhermes sent you an e-mail re: chatting about it. let me know!