gistfile1.txt

<registry>
    <records prefix="plone.resources/my.addon"
              interface='Products.CMFPlone.interfaces.IResourceRegistry'>
              
       <value key="js">++resource++my.addon/foo1.js</value>
       <value key="css">
          <element>++resource++my.addon/foo/foo1.css</element>
          <element>++resource++my.addon/foo/foo2.css</element>
       </value>
    </records>
    <records prefix="plone.resources/my.addon2"
              interface='Products.CMFPlone.interfaces.IResourceRegistry'>
              
       value key="js">++resource++my.addon/foo/foo2.js</value>
    </records>
    
    <records prefix="plone.resources/my.addon3"
              interface='Products.CMFPlone.interfaces.IResourceRegistry'>
              
       value key="js">++resource++my.addon/bar/bar1.js</value>
       <value key="css">
          <element>++resource++my.addon/bar/bar1.css</element>
          <element>++resource++my.addon/bar/bar2.css</element>
       </value>
    </records>
    <records prefix="plone.resources/my.addon4"
              interface='Products.CMFPlone.interfaces.IResourceRegistry'>
              
       value key="js">++resource++my.addon/bar/bar2.js</value>
    </records>
    

    <!-- bundle definition -->
    <records prefix="plone.bundles/tango-bundle"
              interface='Products.CMFPlone.interfaces.IBundleRegistry'>
      <value key="resources">
        <element>my.addon</element>
        <element>my.addon2</element>
        <element>my.addon3</element>
        <element>my.addon4</element>
      </value>
      <value key="enabled">True</value>
      <value key="compile">True</value>
      <value key="csscompilation">++resource++my.addon/myaddon-compiled.css</value>
      <value key="jscompilation">++resource++my.addon/myaddon-compiled.js</value>

    </records>
</registry>