Table of Contents

  1. Branch
  2. Figure out version numbers and install new ruby version and rails gem (new gemset for RVM, not for rbenv/chruby), change local ruby version
  3. Remove Gemfile.lock and strip version numbers from Gemfile apart from ruby and rails (can be repopulated from versions installed when creating a blank test app; grab this new Gemfile)

4 -> 6

development/testing

rails webpacker:install

bin/rails db:environment:set RAILS_ENV=test

Create `app/assets/config/manifest.js` and include directories in `app/assets` that need to be searched (may not need `fonts`, for instance): 

  //= link_tree ../images
  //= link_tree ../fonts
  //= link_directory ../javascripts .js
  //= link_directory ../stylesheets .css

production

Upgrade node.js