Proposal: Merge Webpack configs

Sorry if this was discussed before, I tried searching the issues and didn’t find any match. There are not so many differences between the webpack configs (dev / prod) and I have the working example (https://gist.github.com/emirotin/4ee74e426b20055e418a0101d754f8be) where they’re merged into a single factory. Then the entry configs just look like:

const getConfig = require('./webpack-config');
module.exports = getConfig(false);

If this is interesting I can send a PR.

Why is it useful? On a regular basis, I have to eject because I need TS support. This means at least adding a loader (same for dev and prod) and updating the list of extensions. Quite often I also want to play a bit with some plugins configuration and then need to replicate these changes in prod config.

[emirotin]

TS is just an example, obv it can be CSS modules, or other modifications that apply to both dev and prod

[vinhlh]

Love to see this. We don’t want to maintain ejected things (really hard), but a flexible way to add some customize configurations.