Respect NODE_PATH environment variable

I wanted to try out create-react-app on our internal monorepo, which is basically structured into 2 folders: “apps” and “components”.

The “apps” contain just an entry index.js file and their build/transpile configuration and import a root component from the components directory.

This is currently solved by directing imports using NODE_PATH environment variable to make tools look into the components folder (so that you can write import Button from 'ns-button' instead of import Button from '../../../components/ns-button).

Personally I would feel that this would be worthwhile to support so this project could work with a wide variety of “non-standard” project layouts.

[cpojer]

(@lacker: Jest does handle NODE_PATH just fine. It also has a moduleDirectories option).

[mxstbr]

We do this in react-boilerplate with the webpack option, not sure what the up and/or downsides of this approach are:

resolve: {
  modulesDirectories: ['app', 'components', 'node_modules']
}

Ref: https://webpack.github.io/docs/configuration.html#resolve-modulesdirectories