$ whoami
root
$ git clone -n http://8.131.229.236/anolis-os/spirv-tools /var/lib/mock/dist-el8-build-8308-1172/root/chroot_tmpdir/scmroot/spirv-tools
Cloning into '/var/lib/mock/dist-el8-build-8308-1172/root/chroot_tmpdir/scmroot/spirv-tools'...
$ git reset --hard origin/a8
HEAD is now at ddd5b2f import spirv-tools-2019.5-1.20200129.git97f1d48.el8.src.rpm