$ /usr/bin/mergerepo_c --koji -b /mnt/koji/repos/dist-an7-updates-build/21710/x86_64/blocklist -a x86_64 -o /tmp/koji/tasks/6790/146790/repo --arch-expand -g /mnt/koji/repos/dist-an7-updates-build/21710/groups/comps.xml -r file:///tmp/koji/tasks/6790/146790/repo_21710_premerge/ -r http://build.openanolis.cn/kojifiles/repos/anolis-7-local-repo-external/x86_64/ -r http://build.openanolis.cn/kojifiles/repos/centos/7.7.1908/updates/x86_64/ -r http://build.openanolis.cn/kojifiles/repos/centos/7.7.1908/os/x86_64/ -r https://mirrors.tuna.tsinghua.edu.cn/epel/7/x86_64/