pnpm/lib/node_modules/registry-auth-token/registry-url.js

A fast implementation of npm install

module.exports = function (scope) {
  var rc = require('rc')('npm', {registry: 'https://registry.npmjs.org/'})
  var url = rc[scope + ':registry'] || rc.registry
  return url.slice(-1) === '/' ? url : url + '/'
}