Don't read git config in build.rs

[colemickens]

Describe the bug

I find it very inappropriate that psst-core's build.rs is... reading the git configuration.

We have to patch this in nixpkgs, and I'm glad that we do. It would be great to not have to carry a patch and manually rebase it constantly because of the choices to try to embed this information in the binary, in this way.

To Reproduce

see: https://github.com/NixOS/nixpkgs/blob/master/pkgs/by-name/ps/psst/make-build-reproducible.patch

Expected behavior
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Additional context
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[colemickens]

By the way, I hit this when trying to test the auth fixes.

[jacksongoode]

I see, we read it just to get the build commit sha. Would there be another way you'd suggest that would be more preferable so this info can be kept?

[colemickens]

So, I think there's a method we can do to provide a "fake-git" to the package so that some things will work, but I'm not sure that will include the origin the way the build script expects it.

I'll dig in and send a patch when I figure out the least disruptive change on both sides.

Thanks for the quick reply!

[kingosticks]

Have you looked at https://github.com/rustyhorde/vergen/ ? I think it leaves a placeholder in the values when they are unavailable due to missing git dir.