C3 CloudFront Clear Cacheで全キャッシュを削除する仕様にしたい場合

c3-all-flush-cache.php

<?php
/*
Plugin Name: C3 All Cache Clear
Version: 0.0.1
Plugin URI: https://github.com/megumiteam/
Description: Overwrite invalidation path for clear all item's cache
License: GPLv3 or later
*/
add_filter( 'c3_invalidation_items', function($items, $post){  
        return array('/*'); 
}, 999, 2);