protected function addHooks( $directory ) {
		$hooks_filepath = $this->path( $directory, 'app', 'hooks.php' );

		$this->appendUniqueStatement(
			$hooks_filepath,
			<<<'EOT'

/**
 * Carbon Fields
 */
EOT
		);

		$this->appendUniqueStatement(
			$hooks_filepath,
			<<<'EOT'
add_action( 'after_setup_theme', 'app_bootstrap_carbon_fields', 100 );
EOT
		);

		$this->appendUniqueStatement(
			$hooks_filepath,
			<<<'EOT'
add_action( 'carbon_fields_register_fields', 'app_bootstrap_carbon_fields_register_fields' );
EOT
		);

		$this->appendUniqueStatement(
			$hooks_filepath,
			<<<'EOT'
add_filter( 'carbon_fields_map_field_api_key', 'app_filter_carbon_fields_google_maps_api_key' );
EOT
		);
	}