Can I use npm custom flags to set the value of a configuration variable usable in webpack.config?

Question

I'd like to achieve something like this:

npm run build --path custom

in order to set a different output.path that will be used in webpack.config.js

Does something like this exists?

Answer 1

The solution used in the end uses this command:

DIST=[YOUR-DIRECTORY] npm run build

The webpack.config handles the value of DIST like:

const target = process.env.DIST
  ? process.env.DIST
  : 'dist';

and in the output we go with: path: path.resolve(__dirname, target)