Grooming.

src/gen-config.cr

@@ -116,14 +116,7 @@ class GenConfig::Context
 				service.provides.each do |provider_data|
 					token = provider_data.token
 
-					# FIXME: definitely unreadable
-					consumers[token] = Service.all
-						.select(
-							&.providers.select do |t, provider|
-								t == token && service.is_id?(provider)
-							end
-							.size.>(0))
-						.map &.to_genconfig
+					consumers[token] = service.get_consumers(token).map &.to_genconfig
 				end
 				options["consumers"] = consumers
 			end

src/service/service.cr

@@ -441,6 +441,16 @@ class Service
 	def get_default_provider(token) : String?
 		@environment.get_provider(token) || Environment.root.get_provider(token)
 	end
+
+	def consumes?(token, origin)
+		providers.select do |_token, provider|
+			token == _token && origin.is_id?(provider)
+		end.size > 0
+	end
+
+	def get_consumers(token)
+		Service.all.select(&.consumes?(token, self))
+	end
 end