Support Windows

[RangerMauve]

Some folks use Windows for development, we currently don't work on it at all since we assume POSIX file paths and use CLI utilities which might not exist in windows

• Go through all the places where we use file paths, make sure to use path.join or path.resolve
• Replace any platform specific CLI commands with JS code
• Test on Windows VMs?

Alternatives:

• Never support Windows? 😂

[dkastl]

Issues like this often nobody wants to do, or just there is nobody using Windows to be able to test it.

I think it's a good idea to create issues to not forget about it, but sometimes it's fine to go ahead and keep the task for later.

[martinheidegger]

If we start using #10 we can specify a test to run also on Windows which would make it easier to assure that tests run on all platforms. The only problem then would be to make sure that the right paths are used.

[martinheidegger]

Another note: I think Windows is not relevant for the moment as rn-tape is mostly supposed to run on CI environments. If we want go get #11 working then this issue will become a lot more relevant.