acf.php

<?php
/**
 * Advanced Custom Fields
 *
 * @package    CoreFunctionality
 * @version    2.0
 * @author     Bill Erickson <bill@billerickson.net>
 * @copyright  Copyright (c) 2018, Bill Erickson
 * @license    GPL-2.0+
 */

class BE_ACF_Customizations {
	
	public function __construct() {

		// Only allow fields to be edited on development
		if ( ! defined( 'WP_LOCAL_DEV' ) || ! WP_LOCAL_DEV ) {
			add_filter( 'acf/settings/show_admin', '__return_false' );
		}

		// Save and sync fields in functionality plugin
		add_filter( 'acf/settings/save_json', array( $this, 'get_local_json_path' ) );
		add_filter( 'acf/settings/load_json', array( $this, 'add_local_json_path' ) );
		add_action( 'admin_init', array( $this, 'sync_fields_with_json' ) );

		// Register options page
		//add_action( 'init', array( $this, 'register_options_page' ) );

		// Register Blocks
		//add_action('acf/init', array( $this, 'register_blocks' ) );

	}

	/**
	 * Define where the local JSON is saved
	 *
	 * @return string
	 */
	public function get_local_json_path() {
		return EA_DIR . '/acf-json';
	}

	/**
	 * Add our path for the local JSON
	 *
	 * @param array $paths
	 *
	 * @return array
	 */
	public function add_local_json_path( $paths ) {
		$paths[] = EA_DIR . '/acf-json';

		return $paths;
	}

	/**
	 * Automatically sync any JSON field configuration.
	 */
	public function sync_fields_with_json() {
		if ( defined( 'DOING_AJAX' ) || defined( 'DOING_CRON' ) ) {
			return;
		}

		if ( ! function_exists( 'acf_get_field_groups' ) ) {
			return;
		}

		$version = get_option( 'be_acf_json_version' );
		if( defined( 'CORE_FUNCTIONALITY_VERSION' ) && version_compare( CORE_FUNCTIONALITY_VERSION, $version ) ) {

			update_option( 'be_acf_json_version', CORE_FUNCTIONALITY_VERSION );

			$groups = acf_get_field_groups();

			if ( empty( $groups ) ) {
				return;
			}

			$sync = array();

			foreach ( $groups as $group ) {
				$local    = acf_maybe_get( $group, 'local', false );
				$modified = acf_maybe_get( $group, 'modified', 0 );
				$private  = acf_maybe_get( $group, 'private', false );

				if ( $local !== 'json' || $private ) {
					// ignore DB / PHP / private field groups
					continue;
				}

				if ( ! $group['ID'] ) {
					$sync[ $group['key'] ] = $group;
				} elseif ( $modified && $modified > get_post_modified_time( 'U', true, $group['ID'], true ) ) {
					$sync[ $group['key'] ] = $group;
				}
			}

			if ( empty( $sync ) ) {
				return;
			}

			foreach ( $sync as $key => $v ) {
				if ( acf_have_local_fields( $key ) ) {
					$sync[ $key ]['fields'] = acf_get_local_fields( $key );
				}

				acf_import_field_group( $sync[ $key ] );
			}
		}
	}

	/**
	 * Register Options Page
	 *
	 */
	function register_options_page() {
	    if ( function_exists( 'acf_add_options_page' ) ) {
	        acf_add_options_page( array(
	        	'title'      => __( 'Site Options', 'core-functionality' ),
	        	'capability' => 'manage_options',
	        ) );
	    }
	}

	/**
	 * Register Blocks
	 * @see https://www.billerickson.net/building-gutenberg-block-acf/#register-block
	 *
	 * Categories: common, formatting, layout, widgets, embed
	 * Dashicons: https://developer.wordpress.org/resource/dashicons/
	 * ACF Settings: https://www.advancedcustomfields.com/resources/acf_register_block/
	 */
	function register_blocks() {

		if( ! function_exists('acf_register_block_type') )
			return;

		acf_register_block_type( array(
			'name'				=> 'features',
			'title'				=> __( 'Features', 'core-functionality' ),
			'render_template'		=> 'partials/block-features.php',
			'category'			=> 'formatting',
			'icon'				=> 'awards',
			'mode'				=> 'auto',
			'keywords'			=> array(),
		));
    
	}
}
new BE_ACF_Customizations();

core-functionality.php

<?php
/**
 * Plugin Name: Core Functionality
 *
 */

define( 'CORE_FUNCTIONALITY_VERSION', '1.0.0' );
define( 'EA_DIR' , plugin_dir_path( __FILE__ ) );

wp-config.php

<?php

define( 'WP_LOCAL_DEV', true );