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Heroku buildpack: Middleman

This is a Heroku buildpack for Middleman apps. It uses Bundler for dependency management.

Usage

$ git clone http://github.com/indirect/middleman-heroku-app.git mysite
$ cd mysite
$ heroku create --stack cedar --buildpack http://github.com/indirect/heroku-buildpack-middleman.git
$ git push heroku master

Hacking

To use this buildpack, fork it on Github. Push up changes to your fork, then create a test app with --buildpack <your-github-url> and push to it.

Flow

Here's the basic flow of how the buildpack works:

Ruby (Gemfile and Gemfile.lock is detected)

  • runs Bundler
  • installs binaries
    • installs node if the gem execjs is detected
  • runs rake assets:precompile if the rake task is detected

Rack (config.ru is detected)

  • everything from Ruby
  • sets RACK_ENV=production

Middleman

  • runs middleman build to build the static version of your site
  • serves your static site via Rack::Static