add check if remote side returns fail

bin/epm-sh-altlinux

@@ -130,6 +130,8 @@ get_task_arepo_packages()
 
     info "TODO: please, improve apt-repo to support arepo (i586-) packages for apt-repo list task"
     showcmd "curl -s -f http://git.altlinux.org/tasks/$tn/plan/arepo-add-x86_64-i586 | cut -f1"
+    # TODO: retrieve one time
+    a='' curl -s http://git.altlinux.org/tasks/$tn/plan/arepo-add-x86_64-i586 2>/dev/null >/dev/null || return
     a='' curl -s -f http://git.altlinux.org/tasks/$tn/plan/arepo-add-x86_64-i586 2>/dev/null | cut -f1
 }
 
@@ -140,6 +142,7 @@ get_task_packages()
     local tn
     for tn in $(tasknumber "$@") ; do
         showcmd apt-repo list task "$tn"
+        a='' apt-repo list task "$tn" >/dev/null || continue
         a='' apt-repo list task "$tn"
         [ "$arch" = "x86_64" ] && get_task_arepo_packages "$tn"
     done