$ git clone -n https://gitee.com/src-anolis-os/opencv.git /var/lib/mock/dist-an7-build-61409-33930/root/chroot_tmpdir/scmroot/opencv
Cloning into '/var/lib/mock/dist-an7-build-61409-33930/root/chroot_tmpdir/scmroot/opencv'...
$ git reset --hard origin/a7
HEAD is now at 256aaa0 import opencv-2.4.5-3.el7.src.rpm