GitLab

Created by: mxmader

I'm running 6.2-stable with google-oauth2 support enabled.

I've already got an account created with a specific email address (standard account created via GitLab UI).

When I attempt a login using my google account (same email address as standard account) I am subsequently presented with the following error message in my browser:

422
The change you wanted was rejected.

Maybe you tried to change something you didn't have access to.

With debug logging enabled, I see the following:

Completed 422 Unprocessable Entity in 221ms

ActiveRecord::RecordInvalid (Validation failed: Email has already been taken):
  lib/gitlab/oauth/user.rb:31:in `create'
  app/controllers/omniauth_callbacks_controller.rb:41:in `handle_omniauth'
  app/controllers/omniauth_callbacks_controller.rb:4:in `block (2 levels) in '
  app/controllers/application_controller.rb:54:in `set_current_user_for_thread'

It would be more helpful to transform the ActiveRecord validation error text "Validation failed: Email has already been taken" into an alert typical of the GitLab login menu style (currently a shaded red box in the footer of the window).

If I hadn't had debug logging enabled, I would not have quickly understood the root cause.