$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/mesa-private-llvm.git /var/lib/mock/dist-an7-build-32343-15981/root/chroot_tmpdir/scmroot/mesa-private-llvm
Cloning into '/var/lib/mock/dist-an7-build-32343-15981/root/chroot_tmpdir/scmroot/mesa-private-llvm'...
$ git reset --hard origin/a7
HEAD is now at be9bc14 import mesa-private-llvm-3.9.1-3.el7.src.rpm