allow omitting specifying socket name when inheriting listen socket

Since the common case is still to run a single app inside yahns,
we can simplify setup a bit for systemd (and like) users by
allowing them to omit the "listen" directive when they are
running a single app in yahns.

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/yahns/config.rb b/lib/yahns/config.rb
index e545d59..bcea0d4 100644
--- a/lib/yahns/config.rb
+++ b/lib/yahns/config.rb
@@ -438,4 +438,9 @@ class Yahns::Config # :nodoc:
 
     @app_ctx.each { |app| app.logger ||= server.logger }
   end
+
+  def register_inherited(name)
+    return unless @config_listeners.empty? && @app_ctx.size == 1
+    @config_listeners[name] = { :yahns_app_ctx => @app_ctx[0] }
+  end
 end