diff --git a/cache.inc.php b/cache.inc.php
index f3d0825..bf2817a 100644
--- a/cache.inc.php
+++ b/cache.inc.php
@@ -95,6 +95,13 @@ class ConfigCache
       throw new Exception("Failed to find entry by strid '$strid'");
     return $ce;
   }
+
+  function update(ConfigCacheEntry $ce)
+  {
+    $this->by_path[$ce->file] = $ce;
+    $this->by_id[$ce->id] = $ce;
+    $this->by_alias[$ce->strid] = $ce;
+  }
 }
 
 /**
@@ -350,7 +357,6 @@ class ConfigCacheUpdateParams
   public ConfigGlobals $globals;
   public ConfigDirFiles $affected_files;
   public bool $verbose = false;
-  public bool $check_junk = true;
   public int $max_errors_num = 15;
   public bool $return_affected_entries = false;
 
@@ -445,7 +451,7 @@ function _config_merge_update_results(ConfigUpdateResult $result, array $results
   $result->fast_jsons = $total_fast_jsons;
 }
 
-function _config_update_cache_entry(ConfigCacheUpdateParams $params, $base_dir, string $file, 
+function _config_update_cache_entry(ConfigGlobals $globals, $base_dir, string $file, string $cache_file, 
   ?int &$parser_type = null) : ConfigCacheEntry
 {
   list($conf_id, $conf_strid) = config_ensure_header($base_dir, $file);
@@ -457,7 +463,7 @@ function _config_update_cache_entry(ConfigCacheUpdateParams $params, $base_dir,
   $GLOBALS['CONFIG_CURRENT_PROTO_ID'] = $conf_id; 
   $GLOBALS['CONFIG_EXTRAS'] = ConfigCacheEntryExtras::create();
 
-  $pres = config_parse($params->globals->base_dirs, $file);
+  $pres = config_parse($globals->base_dirs, $file);
   if($pres->error !== 0)
     throw new Exception("Parse error({$pres->error}):\n" . $pres->error_descr);
 
@@ -467,11 +473,9 @@ function _config_update_cache_entry(ConfigCacheUpdateParams $params, $base_dir,
   $parsed_arr['id'] = $conf_id;
   $parsed_arr['strid'] = $conf_strid;
   list($class, $class_id, $normalized_data) 
-    = config_apply_class_normalization($parsed_arr, $params->check_junk);
+    = config_apply_class_normalization($parsed_arr, check_junk: true);
 
-  $cache_payload_file = config_get_cache_payload_path($params->globals, $file);
-
-  $cache_file = config_get_cache_path($params->globals, $file);
+  $cache_payload_file = config_get_cache_payload_path($globals, $file);
 
   $cache_entry = new ConfigCacheEntry();
   $cache_entry->id = $conf_id;
@@ -489,8 +493,8 @@ function _config_update_cache_entry(ConfigCacheUpdateParams $params, $base_dir,
 
   ensure_write($cache_file, ConfigCacheEntry::serialize($cache_entry));
   ensure_write($cache_payload_file, config_msgpack_pack($normalized_data));
-  ensure_write(config_get_cache_id_path($params->globals, $conf_id), $cache_entry->file);
-  ensure_write(config_get_cache_strid_path($params->globals, $conf_strid), $cache_entry->file);
+  ensure_write(config_get_cache_id_path($globals, $conf_id), $cache_entry->file);
+  ensure_write(config_get_cache_strid_path($globals, $conf_strid), $cache_entry->file);
 
   return $cache_entry;
 }
@@ -541,12 +545,12 @@ function _config_update_worker_func(ConfigCacheUpdateParams $params, array $job,
       $cache_file = config_get_cache_path($params->globals, $file);
 
       $parser_type = null;
-      $entry = _config_update_cache_entry($params, $base_dir, $file, $parser_type);
+      $entry = _config_update_cache_entry($params->globals, $base_dir, $file, $cache_file, $parser_type);
 
       $results[] = [
         'base_dir' => $base_dir, 
         'file' => $file, 
-        'cache_file' => $entry->cache_file, 
+        'cache_file' => $cache_file, 
         'parser_type' => $parser_type, 
         'error' => null
       ];
diff --git a/config.inc.php b/config.inc.php
index c752c31..6fceae4 100644
--- a/config.inc.php
+++ b/config.inc.php
@@ -16,13 +16,15 @@ class ConfigGlobals
   public readonly int $workers_num;
   public readonly string $base_class;
   public readonly string $build_dir;
+  public readonly mixed $files_overrider; 
 
   function __construct(
     array $base_dirs, 
     string $build_dir, 
     ?string $worker_init_fn = null,
     int $workers_num = 1,
-    string $base_class = '\ConfBase'
+    string $base_class = '\ConfBase',
+    callable $files_overrider = null
   )
   {
     $this->base_dirs = array_map(fn($path) => normalize_path($path), $base_dirs);
@@ -30,6 +32,7 @@ class ConfigGlobals
     $this->worker_init_fn = $worker_init_fn;
     $this->workers_num = $workers_num;
     $this->base_class = $base_class;
+    $this->files_overrider = $files_overrider;
   }
 
   function initWorker(bool $is_master_proc)
@@ -44,6 +47,13 @@ class ConfigGlobals
   }
 }
 
+enum ConfigGetMode : int
+{
+  case ForceUpdate   = 1;
+  case Auto          = 2;
+  case CacheOnly     = 3;
+}
+
 enum ConfigUpdateMode : int
 {
   case Force         = 1;
@@ -141,8 +151,14 @@ class ConfigManager
     return $this->globals;
   }
 
-  function getCache() : ConfigCache
+  function getCache(ConfigGetMode $mode = ConfigGetMode::CacheOnly) : ConfigCache
   {
+    if($mode != ConfigGetMode::CacheOnly)
+    {
+      foreach($this->getIterator($mode) as $ce) 
+      {}
+    }
+
     return $this->cache;
   }
 
@@ -165,6 +181,43 @@ class ConfigManager
     return $this->file_map;
   }
 
+  function getByPath(string $file, ConfigGetMode $mode = ConfigGetMode::Auto, bool $normalize_path = true) : ConfigCacheEntry
+  {
+    if($normalize_path)
+      $file = normalize_path($file);
+
+    if($mode != ConfigGetMode::CacheOnly)
+    {
+      $cache_file = config_get_cache_path($this->globals, $file);
+
+      if($mode == ConfigGetMode::ForceUpdate || need_to_regen($cache_file, [$file]))
+      {
+        $base_dir = config_map_base_dir($this->globals->base_dirs, $file);
+        $parser_type = null;
+        $ce = _config_update_cache_entry($this->globals, $base_dir, $file, $cache_file, $parser_type);
+        $this->cache->update($ce);
+      }
+    }
+
+    return $this->cache->getOrLoadByPath($file);
+  }
+
+  function getIterator(ConfigGetMode $mode = ConfigGetMode::Auto, mixed $files = null, bool $normalize_path = false) : \Generator
+  {
+    if($files === null)
+    {
+      $files = $this->scanFiles();
+      $normalize_path = false;
+    }
+
+    $cache_entries = [];
+    foreach($files as $file)
+    {
+      $ce = $this->getByPath($file, $mode, normalize_path: $normalize_path);
+      yield $ce;
+    }
+  }
+
   function update(ConfigUpdateRequest $req) : ConfigUpdateResult
   {
     config_log("Updating configs, mode '{$req->mode->name}'...");
@@ -357,7 +410,10 @@ class ConfigManager
 
   function scanFiles(string $extension = '.conf.js', bool $verbose = false) : ConfigDirFiles
   {
-    return config_scan_files($this->globals->base_dirs, $extension, $verbose);
+    $res = config_scan_files($this->globals->base_dirs, $extension, $verbose);
+    if($this->globals->files_overrider != null)
+      $res = call_user_func($this->globals->files_overrider, $res);
+    return $res;
   }
 
   private function _getMapPath() : string