These are SVN repositories of Pentaho open source projects :

• Pentaho BI Platform
• svn://source.pentaho.org
• BI Server
• svn://source.pentaho.org/svnroot/pentaho
• Kettle / Pentaho Data Integration
  
• svn://source.pentaho.org/svnkettleroot/Kettle/trunk
• JFreeReport / Pentaho Reporting
• svn://source.pentaho.org/pentaho-reporting

For a more detail and updated svn you can check on http://community.pentaho.com/getthecode.