Per request of JBQA-3313, we did the following to start using /home/hudson/static_build_env/jbds/requirements as the dir into which requirements are downloaded:

<!-- https://jira.jboss.org/jira/browse/JBQA-3313 Use static, shared space outside workspace, instead of working directly in the workspace -->
<if>
<available file="/home/hudson/static_build_env/jbds" type="dir" />
<then>
<var name="requirement.build.root" unset="true" />
<property name="requirement.build.root" value="/home/hudson/static_build_env/jbds/requirements" />
<mkdir dir="${requirement.build.root}" />
</then>
</if>
<echo level="debug">requirement.build.root = ${requirement.build.root}</echo>

https://svn.jboss.org/repos/devstudio/trunk/releng/org.jboss.ide.eclipse.releng/builders/common/buildRequirements.xml

Can the new harness in http://anonsvn.jboss.org/repos/jbosstools/trunk/requirements/ use the same shared dir? Currently it writes into the part of the workspace which contains SVN sources, which means it will most likely be overwritten every time SVN is refreshed (and have to be downloaded for every slave on which we build).