fix commit hooks on windows (+tests)

[extrawurst]

calling the hooks is currently only implemented of *nix systems.
how does this even work on windows? does git call *.bat files? help of someone on a windows machine would be required here.

[MCord]

I can take this if it's ok with you.

[extrawurst]

Absolutely! Are you running on windows? I have a hard time even testing this being on a Mac. Do you know how hooks work on windows? are they expected as *.bat files?

[MCord]

yes I use a windows 10 as my main machine. for hooks on windows you have to specify an alternative interpreter. the default installation of git provides a bash interpreter but even PowerShell should work.

[extrawurst]

Ok I assume its regular bash scripts aswell, now that I look at it.

@MCord could you add a unitest for the hooks, I realize they are missing

[extrawurst]

I tried to reach out to you twitter. would you be up for syncing on discord?

[MCord]

That would be great ! let me know when you are available to chat!

[MCord]

my handle is mcord#0935 on discord by the way.