We build this site with Maven using the fluido plugin. Due to difficulties with the maven site plugin and munge working together, we build the site using a profile that does not require munge.
mvn clean site -DskipTests -Phadoop_2.0.0 -Ddependency.locations.enabled=false
mvn site:stage -DskipTests -Phadoop_2.0.0
svn co https://svn.apache.org/repos/asf/giraph/site