I'd like to use versioneer in a non-python (C++) project and have it offer a version string which can be used by CMake in my build process.

For this, I created a small python script that can be called from CMake and just outputs the version information:

#!/usr/bin/env python
import versioneer
print versioneer.get_version()

Works fine so far.
However, since this is not a python project, I don't like having the python files hanging around in the source tree root, so I created a subdirectory and moved everything there. When I call it from there, it reports version "0-unknown". I'm wondering why this happens - git commands should be runnable from a subdirectory as well. Maybe it is looking for the .git directory and doesn't find it.

Could you make versioneer work when it is stored in a subdirectory?