I'm working on a little static site generator now for my own site. The PHP/SQL wordpress kind of option just annoys me and have held me back from publishing altogether (don't even get me started on publishing services and social media sites.
Well, stuff like hugo, nanoc, ikiwiki... inspirational!
My static site generator is using rake for file rules to do stuff with git hooks. It's going to depend on Ruby, but won't be a "Ruby framework". Rake might as well run php, perl, a bash script or a binary. Rake is just a wonderful tool for the job, and Ruby is about as ubiquitous as Perl these days.
Here's some inspiration: http://patshaughnessy.net/2015/1/8/using-rake-to-generate-a-...
Be sure to check out the "power rake" talk he mentions if you haven't already.
Edit: one more thought. On the idea of teaching casual users "git", I think that's an amazing idea. It touches on tip of an iceberg: computer/scientific/technological literacy gaps. If our technologies continue down the path of "black magic," with the ever extreme dichotomy of priests who know the secrets vs. ordinary/"dumb" people who are locked out of the inner knowledge, it's just not going to be conducive to a bright future.
Remember, regular people are dependent on technology, but have begun to develop superstitions about how it works. It's magic to people!
This is such a deep issue.