$ git clone -n https://gitee.com/src-opencloudos-rpms/coreos-installer /var/lib/mock/dist-oc8-build-32135-9648/root/chroot_tmpdir/scmroot/coreos-installer
Cloning into '/var/lib/mock/dist-oc8-build-32135-9648/root/chroot_tmpdir/scmroot/coreos-installer'...
$ git reset --hard origin/oc8
HEAD is now at 756ffc7 import coreos-installer-0.11.0-3.oc8