feat: notify on adduser of upcoming cmds, login and register

Author: fritzy

lib/commands/adduser.js

@@ -28,6 +28,10 @@ class AddUser extends BaseCommand {
 
  log.disableProgress()
 
+ log.warn('adduser',
+ '`adduser` will be split into `login` and `register in a future version.'
+ + ' `adduser` will become an alias of `register`.'
+ + ' `login` (currently an alias) will become its own command.')
  log.notice('', `Log in on ${replaceInfo(registry)}`)
 
  const { message, newCreds } = await auth(this.npm, {

lib/utils/config/definitions.js

@@ -239,12 +239,8 @@ define('audit-level', {
 define('auth-type', {
  default: 'legacy',
  type: ['legacy', 'webauthn', 'sso', 'saml', 'oauth'],
- deprecated: `
- The SSO/SAML/OAuth methods are deprecated and will be removed in
- a future version of npm in favor of web-based login.
- `,
  description: `
- What authentication strategy to use with \`adduser\`/\`login\`.
+ What authentication strategy to use with \`login\`.
 
  Pass \`webauthn\` to use a web-based login.
  `,