e92bfbc backend: terminate copr-repo for wrong --delete sooner

Authored and Committed by praiskup 4 years ago
    backend: terminate copr-repo for wrong --delete sooner
    
    We shouldn't try to --delete/--add invalid sub-directories (or even run
    createrepo_c), it's better to fail ASAP to not cause any damage.
    
    Fixes: #1213
    
        
file modified
+19 -2