Deal better with missing github repo for groups

This also allows for only some repos to be pushed, if configured

Signed-off-by: Mike Beattie <mike@ethernal.org>

lib/oxidized/hook/githubrepo.rb

@@ -8,6 +8,11 @@ def run_hook(ctx)
     creds = credentials(ctx.node)
     url   = remote_repo(ctx.node)
 
+    if url.nil? || url.empty?
+      log "No repository defined for #{ctx.node.group}/#{ctx.node.name}", :debug
+      return
+    end
+
     log "Pushing local repository(#{repo.path})..."
     log "to remote: #{url}"
 
@@ -89,8 +94,10 @@ def remote_repo(node)
       cfg.remote_repo
     elsif cfg.remote_repo[node.group].is_a?(String)
       cfg.remote_repo[node.group]
-    else
+    elsif cfg.remote_repo[node.group].url.is_a?(String)
       cfg.remote_repo[node.group].url
+    else
+      nil
     end
   end
 end