Add modular function partials to the function.php for a customized WordPress child theme

functions.php

/**
	 * Theme Includes
	 *
	 * The $theme_includes array determines the code library included in your theme.
	 * Add or remove files to the array as needed. Supports child theme overrides.
	 * @parent shopical pro from AF Themes
	 *
	 * Please note that missing files will produce a fatal error.
	 *
	 */

	$theme_includes = [

		'lib/assets.php',       // Scripts and stylesheets
		'lib/setup.php',        // Theme setup
		'lib/woocommerce.php',  // WooCommerce Functions

	];
	
	foreach ($theme_includes as $file) {

		if (!$filepath = locate_template($file)) {
			trigger_error(sprintf(__('Error locating %s for inclusion', 'shopical-pro'), $file), E_USER_ERROR);

		}
		
		require_once $filepath;

	}

	unset($file, $filepath);