class Gem::Commands::CertCommand

def build_cert(email, key) # :nodoc:
  expiration_length_days = options[:expiration_length_days] ||
    Gem.configuration.cert_expiration_length_days
  cert = Gem::Security.create_cert_email(
    email,
    key,
    (Gem::Security::ONE_DAY * expiration_length_days)
  )
  Gem::Security.write cert, "gem-public_cert.pem"
end