Expose bundles to Sprockets

[perezperret]

I don't know the correct way to go about this, but I need to load a bundled file through sprockets for a gem to use it (react-rails). Basically, I expose a module globally in a pack (using webpack's library output option) and I need to point react-rails to this bundle to pre-render some stuff with ExecJS, but react-rails loads js through sprockets, right now if I manually add the pack to the assets path in the assets initialisers, I can get the server-side renderer to load it through sprockets, but it doesn't detect changes to it, which causes the server rendered version to be out of sync with the client side version (which loads the bundle with the javascript_pack helper). I can only assume this is going to be an even bigger problem in production. What I guess I need is an interface for sprockets to load these bundles, does that make sense as part of this gem?

For reference, have a look at the repo I'm working on, it is thoroughly explained in the README.

[gauravtiwari]

@perezperret You may want to use https://github.com/renchap/webpacker-react, drop-in replacement for react-rails and works with webpacker.

Feel free to close this one if it's okay 👍

[justin808]

@perezperret We'll soon have Webpacker integration completed: shakacode/react_on_rails#811

[gauravtiwari]

Update: Also react-rails now provides first-class support for Webpacker - https://github.com/reactjs/react-rails#use-with-webpacker