[builder] guessing sync_type from url

builder

@@ -89,7 +89,8 @@ sub add_portage_repository {
       or $sync_type eq "https"
       or $sync_type eq "http";
     $sync_type = "svn" if $repo =~ /\/svn\//;
-    my $reponame = ( split( /\//, $repo ))[-1];
+    my @reposplit = split( /\//, $repo );
+    my $reponame = $reposplit[-2] . "-" . $reposplit[-1];
     system("mkdir -p /etc/portage/repos.conf/")
       if ( !-d "/etc/portage/repos.conf/" );
 
@@ -99,6 +100,7 @@ echo '[$reponame]
 location = /usr/local/overlay/$reponame
 sync-type = $sync_type
 sync-uri = $repo
+masters = gentoo
 auto-sync = yes' > /etc/portage/repos.conf/$reponame.conf
 };    # Declaring the repo and giving priority