dundef-viewer/build.xml

<?xml version="1.0" encoding="UTF-8"?>
<project name="DD layout viewer" default="concatenate" basedir=".">
 <description>Compiles and compresses resources.</description>

 <target name="concatenate" description="Concatenate all js files">
  <concat destfile="res/js/jquery.js">
   <fileset dir="res/js/jquery" includes="*.js" />
  </concat>
  <concat destfile="res/js/viewer.js">
   <fileset dir="res/js/viewer" includes="*.js" />
   <fileset dir="res/data" includes="*.js" />
  </concat>
 </target>
</project>