[libvirt] [RFC] How to build libvirt package with git commit info from libvirt.git

Hello there, Currently I am searching a way to build a libvirt package from latest libvirt.git with package name including git commit info. Like # cd libvirt && git describe v1.2.14-rc1-16-g0c4474d then I want to build a libvirt package with name like libvirt-1.2.14-1.el7.v1.2.14-rc1-16-g0c4474d.x86_64 The context why I need this is there are some hosts running scripts for auto QE-consumption testing while there is no job running sometimes.( we won't get a internal release version everyday, it is not necessary also). We can make use of these resource to do some auto testing daily so that we may be able to find the regression problems earlier. So, a package with commit info is required for comparative testing. After talk with eblake I got a way as below: after 'make rpm' , I will get libvirt.spec, then I can tweak libvirt.spec add a line "%define extra_release .git_commit_num" at the top of libvirt.spec then use the tweaked libvirt.spec to build the package I want to get I wonder anybody have a better method to achieve this ? Thanks -- Regards shyu