dependencies.js

const fs = require('fs');

const licenses = (dirpath, acc, depth = -1) => {
    const hasPackage = fs.existsSync(`${dirpath}/package.json`);
    if (!hasPackage) {
        return;
    }
    const pkg = require(`${dirpath}/package.json`);
    let license = (pkg.licenses && pkg.licenses) ? pkg.licenses : pkg.license;
    acc[pkg.name] = `${pkg.description}\t${JSON.stringify(license)}`;

    const checkSubmodules = (depth === -1) || (depth-- > 0);
    const hasSubmodules = fs.existsSync(`${dirpath}/node_modules`);
    if (checkSubmodules && hasSubmodules) {
        const submodules = fs.readdirSync(`${dirpath}/node_modules`);
        submodules.forEach(submodule => {
            licenses(`${dirpath}/node_modules/${submodule}`, acc, depth);
        });
    }

    return acc;
};

if (process.argv.indexOf('--help') > -1) {
    console.log(`Usage: ${process.argv0} ${__filename} [dirpath]`);
    process.exit(1);
}

const dirpath = process.argv[2] || '.';
const results = licenses(dirpath, {});

const rootPkg = require(`${dirpath}/package.json`);
Object.keys(rootPkg.dependencies).forEach(depName => {
    console.log(`${depName}\t${results[depName]}`);
});