update commnts

ts/npmci.build.ts

@@ -4,13 +4,22 @@ import {bash} from "./npmci.bash";
 import * as env from "./npmci.env";
 import * as buildDocker from "./npmci.build.docker"
 
-export let build = function(commandArg){
+/**
+ * defines possible build services
+ */
+export type TBuildService = "docker";
+
+/**
+ * builds for a specific service
+ */
+export let build = function(commandArg):plugins.q.Promise<any> {
     switch(commandArg){
         case "docker":
             return buildDocker.build();   
         default:
             plugins.beautylog.log("build target " + commandArg + " not recognised!");
-    }
+    };
+    return;
 }