There is nothing change in this repo except the change from git:// to https:// in .gitmodules file. This makes it avaliable to do a recursive clone to my machine.
Since the original repo is dead and the rpm package is orphaned, I have to do it myself.
There is an another newer repo to consider, gitflow-avg, funny enough it was not actively maintaned too(...dead). So I will stick to the original one this time.
Use the following instructions:
$ git clone --recursive git://github.com/lngsx/gitflow.git
Then
$ sudo make install
I will remove the rest of the README and left it with my only note. Anyone passing here should consider go back to the original one. https://github.com/nvie/gitflow