$ git clone -n https://gitee.com/uestc-cheng/libxml2.git /var/lib/mock/dist-an8.8-build-299488-65890/root/chroot_tmpdir/scmroot/libxml2 Cloning into '/var/lib/mock/dist-an8.8-build-299488-65890/root/chroot_tmpdir/scmroot/libxml2'... $ git reset --hard 62775691121b89521fd0ee31a7d8f3a34d25b7cd HEAD is now at 6277569 update libxml2.spec.