$ git clone -n https://gitee.com/src-opencloudos-rpms/python3 /var/lib/mock/dist-oc8-build-35354-11604/root/chroot_tmpdir/scmroot/python3
Cloning into '/var/lib/mock/dist-oc8-build-35354-11604/root/chroot_tmpdir/scmroot/python3'...
$ git reset --hard origin/oc8
HEAD is now at 4360ee0 add supported os