Gem::Commands::CertCommand#build

# File tmp/rubies/ruby-3.0.5/lib/rubygems/commands/cert_command.rb, line 137
def build(email)
  if !valid_email?(email)
    raise Gem::CommandLineError, "Invalid email address #{email}"
  end

  key, key_path = build_key
  cert_path = build_cert email, key

  say "Certificate: #{cert_path}"

  if key_path
    say "Private Key: #{key_path}"
    say "Don't forget to move the key file to somewhere private!"
  end
end