codekingpro/portable-devtools

1const npmFetch = require('npm-registry-fetch')
2
3module.exports = async (npm, opts) => {
4  const { registry } = opts
5
6  // First, check if we have a user/pass-based auth
7  const creds = npm.config.getCredentialsByURI(registry)
8  if (creds.username) {
9    return creds.username
10  }
11
12  // No username, but we have other credentials; fetch the username from registry
13  if (creds.token || creds.certfile && creds.keyfile) {
14    const registryData = await npmFetch.json('/-/whoami', { ...opts })
15    if (typeof registryData?.username === 'string') {
16      return registryData.username
17    }
18  }
19
20  // At this point, even if they have a credentials object, it doesn't have a valid token.
21  throw Object.assign(
22    new Error('This command requires you to be logged in.'),
23    { code: 'ENEEDAUTH' }
24  )
25}
26