Run automatically during npm install and prevent installation of incompatible packages

[func0der]

Basically we extend the package.json with a list of allowed license (patterns) and run a "*install" hook to prevent the installation of packages, that are not supposed to be installed because of their license.

Inspiration: https://packagist.org/packages/arokettu/composer-license-manager

Is there any reason this has not been implemented yet in the npm world? I am coming from the composer world and the hooks are basically the way to go if you want to prevent stuff like that.