$ git clone -n https://gitee.com/liangyuanpeng/etcd-rpm.git /var/lib/mock/dist-an23-build-345968-70159/root/chroot_tmpdir/scmroot/etcd-rpm
Cloning into '/var/lib/mock/dist-an23-build-345968-70159/root/chroot_tmpdir/scmroot/etcd-rpm'...
$ git reset --hard 21e9256983bdf0380f94444050e0b5c635035cd7
HEAD is now at 21e9256 u