<commands version="1.0">
   <download-all>
    <summary>Downloads each available package from the default channel</summary>
    <function>doDownloadAll</function>
    <shortcut>da</shortcut>
    <options>
     <channel>
      <shortopt>c</shortopt>
      <doc>specify a channel other than the default channel</doc>
      <arg>CHAN</arg>
     </channel>
    </options>
    <doc>
  Requests a list of available packages from the default channel ({config default_channel})
  and downloads them to current working directory.  Note: only
  packages within preferred_state ({config preferred_state}) will be downloaded</doc>
   </download-all>
  </commands>