GetCurrentTag returns the tag of the HEAD commit of the git repository in the specified directoryIt returns an error if git isn't installed, or if there is some sort of I/O problemIt does not return an error if git exits with a non-zero exit code, it assumes this means there are no tags.

GetCurrentTreeHash returns a hash of the git repository, consisting of the currentlycommited files, as well as any unstaged changes in the provided directories.

GetGitRoot returns the directory which contains the .git folder.