Building Everything
You can now build the whole suite of docs available here [1] from the Jenkins job here [2].
[1] http://docs.jboss.org/tools/nightly/trunk/
[2] http://hudson.jboss.org/hudson/job/jbosstools-docs-nightly/
To build locally, clone this project [3] into the same place you have all of the jbosstools-* github repos checked out.
[3] https://github.com/jbosstools/jbosstools-documentation
Then:
cd jbosstools-documentation/jboss-tools-docs;
mvn -s settings.xml -f pom.xml clean assembly:assembly
Building a single component's documentation
After cloning the above project, you can selectively build a single component's doc by commenting out the modules you don't want to build in this pom, then rerunning the step above.
jbosstools-documentation/jboss-tools-docs/pom.xml
In future we may find a way to run individual doc builds w/o the need for all-guides.xml and the additional Maven <build> plugin configuration.