coreinfrastructure
Add yarn and maybe webpack
Rails 5.1 optionally integrates yarn and webpack. Yarn makes it easier to bring in JavaScript modules, and webpack creates a compiler pipeline for JavaScript. Yarn might make it easier to keep up-to-date with JavaScript modules directly, in particular chart.js. Webpack would meeting me could use JavaScript es6 constructs directly, without depending on browser updates.
@jdossett @dankohn - any objections? Rails 5 switched to this convention, but when we updated to Rails 5 we never did this part.
Some documentation: https://prograils.com/posts/adding-webpacker-legacy-rails-app http://blog.blackninjadojo.com/ruby/rails/2019/03/01/webpack-webpacker-and-modules-oh-my-how-to-add-javascript-to-ruby-on-rails.html
We currently bring in JavaScript using ruby wrappers, but that depends on others keeping the wrappers up to date (which is increasingly less likely since newer Rails applications don't need to dot that). It should also mean that we can write future JavaScript with more features, and let babel translate it back.
