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path: root/app/jobs/govuk_guix/build_job.rb
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class GovukGuix::BuildJob < GovukGuix::Job
  DEFAULT_ARGUMENTS = {
    'rails-environment' => 'production',
    'use-high-ports' => 'false',
    'fallback' => true
  }.freeze

  @retry_interval = 30

  def run(mini_environment_id, services, arguments)
    logger.info(self.class) do
      "Building mini environment #{mini_environment_id}"
    end

    mini_environment = MiniEnvironment.find(mini_environment_id)

    output = run_command(
      "#{mini_environment.govuk_guix_revision.store_path}/bin/govuk",
      'system',
      'build',
      *hash_to_arguments(
        DEFAULT_ARGUMENTS.merge(arguments)
      ),
      *signon_user_arguments(mini_environment.signon_users),
      *services
    )

    build_output = output.last.strip
    logger.debug(self.class) { "build_output: #{build_output}" }

    mini_environment.update(
      backend_data: {
        build_output: build_output
      }
    )
  end

  def signon_user_to_sexp(signon_user)
    keys = %w(name email role)

    sexp_contents = keys.zip(
      signon_user.values_at(*keys)
    ).map do |(key, value)|
      "#:#{key} \"#{value}\""
    end

    "(#{sexp_contents.join(' ')})"
  end

  def signon_user_arguments(signon_users)
    signon_users.map do |signon_user|
      "--signon-user=#{signon_user_to_sexp(signon_user)}"
    end
  end
end