Git Extras
GIT utilities, repo summary, repl, changelog population, and more
...Some commands require extra dependencies which are unavailable in some platforms. You may need to install them manually. Note that only the Homebrew package is maintained by the git-extras developers directly. Other packages are maintained by the distribution's packagers or third-party volunteers. Installing from Homebrew will not give you the option omit certain git-extras if they conflict with existing git aliases. To have this option, build from source.