Cache clear hook

Author: slawkens

system/functions.php

@@ -1254,6 +1254,9 @@ function clearCache()
 	// routes cache
 	clearRouteCache();
 
+	global $hooks;
+	$hooks->trigger(HOOK_CACHE_CLEAR, ['cache' => Cache::getInstance()]);
+
 	return true;
 }
 

system/src/global.php

@@ -73,6 +73,7 @@
 define('HOOK_GUILDS_AFTER_GUILD_MEMBERS', ++$i);
 define('HOOK_GUILDS_AFTER_INVITED_CHARACTERS', ++$i);
 define('HOOK_TWIG', ++$i);
+define('HOOK_CACHE_CLEAR', ++$i);
 
 const HOOK_FIRST = HOOK_STARTUP;
 define('HOOK_LAST', $i);