[DISCUSS] Automated website builds for Calcite projects

[Francis Chuang]

While moving the website repo from SVN to Git a while back, I briefly 
mentioned the possibility of automating our website builds, so that we 
do not need to manually push the built website assets.

I have done some research regarding ASF's build infrastructure and it 
turns out there is a git-website jenkins node for doing this. 
Unfortunately, there isn't much documentation for this, and the howto 
for this appears to be work in progress: 
https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=75964385

Before reaching out to infra and builds I'd like to clarify my 
understanding of how Jenkins builds are currently set up for Calcite, 
before asking builds and infra for further assistance:

- How were the Jenkins builds set up initially? Did INFRA set this up 
for us or was there a self-service system?

- Are the ASF builds configured using exclusively using the control 
panel at https://builds.apache.org/job/Calcite-Master/ or do we have 
other configurations in the repository using configuration files similar 
to .travis.yml?

Francis