Add new primary email address to a user

add-new-primary-email.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'octokit'

Octokit.configure do |c|
  c.api_endpoint = ENV['GITHUB_API']
end

# Create Admin Client with PAT with site_admin scope.
admin_client = Octokit::EnterpriseAdminClient.new(
  access_token: ENV['GITHUB_PERSONAL_ACCESS_TOKEN']
)

# Create end user impersonation token
token = admin_client.create_impersonation_token(ENV['GITHUB_USER'],
                                                scopes: ['user', 'user:email'])

# Create end user client
user_client = Octokit::Client.new(access_token: token.token)
user = user_client.user

# Fetch exsiting emails
existing_emails = user_client.emails

# Add New email address
new_email = "#{user.login}@#{ENV['NEW_DOMAIN']}"
user_client.add_email(new_email)

# Remove all old emails
existing_emails.each do |email|
  user_client.remove_email(email.email)
end

# Add emails back
existing_emails.each do |email|
  user_client.add_email(email.email)
end

# Remove Impersonation Token
admin_client.delete_impersonation_token(ENV['GITHUB_USER'])

command.txt

GITHUB_API=https://[hostname]/api/v3 \
GITHUB_PERSONAL_ACCESS_TOKEN=[ACCESS_TOKEN] \
GITHUB_USER=[USER] \
NEW_DOMAIN=[DOMAIN] \
./add-new-primary-email.rb