Checks for modules using GPL License

gpl-checker.js

const path = require('path')
const checker = require('license-checker')

function usingGPL(err, packages){
    if (err) {
      throw err
    } else {
      let gpls = Object
        .keys(packages)
        .filter(package =>
          packages[package]
          .licenses
          .includes('GPL'))

      console.log(gpls)
    }
}

checker
  .init({start: path.resolve(__dirname)}, usingGPL);