nix: use zig2nix to manage nix cache/deps

[jcollie]

This brings the internal package more in line with how the nixpkgs package is built. It also handles recursive dependencies better than the current system.

[mitchellh]

Going to push this out of 1.1 just due to the diff count and plans to release... now-ish lol.

[mitchellh]

Thanks! I'm about ready to merge this, I think the only thing we need to do is add build.zig.zon.nix to our .gitattributes file as auto-generated. Its a simple change.

[jcollie]

Thanks! I'm about ready to merge this, I think the only thing we need to do is add build.zig.zon.nix to our .gitattributes file as auto-generated. Its a simple change.

This file needs to be managed in git as it's the replacement for nix/zigCacheHash.nix

[mitchellh]

I know. I suggested git attributes not git ignore :)

[mitchellh]

I made the change, rebased, and updated for the new gobject deps.

[jcollie]

I know. I suggested git attributes not git ignore :)

ah. my bad. reading while in a hurry is bad for one's ego.