$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/llvm-private.git /var/lib/mock/dist-an7-build-32213-15941/root/chroot_tmpdir/scmroot/llvm-private
Cloning into '/var/lib/mock/dist-an7-build-32213-15941/root/chroot_tmpdir/scmroot/llvm-private'...
$ git reset --hard origin/a7
HEAD is now at 496b683 import llvm-private-7.0.1-1.el7.src.rpm