$ git clone -n git+ssh://git@codeup.openanolis.cn/codeup/anolis-os/libical.git /var/lib/mock/dist-an7-build-31805-15802/root/chroot_tmpdir/scmroot/libical
Cloning into '/var/lib/mock/dist-an7-build-31805-15802/root/chroot_tmpdir/scmroot/libical'...
$ git reset --hard origin/a7
HEAD is now at 11c199e import libical-3.0.3-2.el7.src.rpm