If it's simple git integration, I would either simply use system with the appropriate git commands, or look at Git::Wrapper, which claims to do command construction and parameter quoting for you.

Using the Git module (which comes with git) is risky, as your program then tightly depends on the installed version of git.

The most creative access to git repositories is likely through Git::Repository, but I assume that it's far too low level and far too powerful for what you actually need.