epm addrepo: add deferred repo support

bin/epm-addrepo

@@ -177,6 +177,8 @@ epm repo add - add branch repo. Use follow params:
     autoimports              - for BaseALT autoimports repo"
     autoports                - for Autoports repo (with packages from Sisyphus rebuilt to the branch)
     altlinuxclub             - for altlinuxclub repo (http://altlinuxclub.ru/)"
+    deferred                 - for Etersoft Sisyphus Deferred repo"
+    deferred.org             - for Etersoft Sisyphus Deferred repo (at mirror.eterfund.org)"
     etersoft                 - for LINUX@Etersoft repo"
     korinf                   - for Korinf repo"
     <task number>            - add task repo"
@@ -270,6 +272,16 @@ __epm_addrepo_altlinux()
             epm repo add "rpm $http://download.etersoft.ru/pub Korinf/ALTLinux/$DISTRVERSION main"
             return 0
             ;;
+        deferred)
+            [ "$DISTRVERSION" = "Sisyphus" ] || fatal "Etersot Sisyphus Deferred supported only for ALT Sisyphus."
+            epm repo add "http://download.etersoft.ru/pub Etersoft/Sisyphus/Deferred"
+            return 0
+            ;;
+        deferred.org)
+            [ "$DISTRVERSION" = "Sisyphus" ] || fatal "Etersot Sisyphus Deferred supported only for ALT Sisyphus."
+            epm repo add "http://mirror.eterfund.org/download.etersoft.ru/pub Etersoft/Sisyphus/Deferred"
+            return 0
+            ;;
         archive)
             datestr="$2"
             echo "$datestr" | grep -Eq "^20[0-2][0-9]/[01][0-9]/[0-3][0-9]$" || fatal "use follow date format: 2017/01/31"