Error in GetGitVersion() in BuildPackage.cs on macOS/Unix/Linux

[dblatner]

When building Poly Unity Package from Github sources (using Unity Menu Poly > Dev > build .unitypackage) , Unity throws an error from method
static string GetGitVersion()
inside the file "BuildPackage.cs".

Error: "git.exe describe exited with code 128"

On Unix machines (macOS, Linux, ...) there is no "git.exe", instead I tried using "git" but the method does not perform it's operation well.

To be able to build it, I just inserted a fixed string for the version number, then the build worked. So the error is just in this method.

[dubois]

It sounds like you might not have pulled tags from the repo, or you're not beyond some version-tagged commit.

That method is mostly for our use to create unity packages to put onto github, so if the engineer making them doesn't have the proper environment then we'd rather they fail.

[dblatner]

What is the "proper" build environment?

[dubois]

I don't know sufficient conditions, but necessary is one in which git.exe exists and the repo satisifies #2 above