This is the Middleman app I use to develop my blog. It's a static site generator that converts all my haml and sass into html and css and throws it into a 'build' folder, which I then deploy to a GitHub Pages repo.
The build folder is in .gitignore so you won't see it on this repo, as I have initialised a separate repository inside this folder.
I use Rake to automate deployment, which just rebuilds the site then force pushes it to the GitHub Pages repo. This means I can run rake publish and any changes I've made will be deployed.