feat: [Factories] Config caching

psalm-baseline.xml

@@ -1,5 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <files psalm-version="5.13.1@086b94371304750d1c673315321a55d15fc59015">
+  <file src="system/Cache/FactoriesCache/FileVarExportHandler.php">
+    <UndefinedVariable>
+      <code>$val</code>
+    </UndefinedVariable>
+  </file>
   <file src="system/Cache/Handlers/MemcachedHandler.php">
     <UndefinedClass>
       <code>Memcache</code>

public/index.php

@@ -43,6 +43,16 @@
 require_once SYSTEMPATH . 'Config/DotEnv.php';
 (new CodeIgniter\Config\DotEnv(ROOTPATH))->load();
 
+// Define ENVIRONMENT
+if (! defined('ENVIRONMENT')) {
+    define('ENVIRONMENT', env('CI_ENVIRONMENT', 'production'));
+}
+
+// Load Config Cache
+// $factoriesCache = new \CodeIgniter\Cache\FactoriesCache();
+// $factoriesCache->load('config');
+// ^^^ Uncomment these lines if you want to use Config Caching.
+
 /*
  * ---------------------------------------------------------------
  * GRAB OUR CODEIGNITER INSTANCE
@@ -68,6 +78,10 @@
 
 $app->run();
 
+// Save Config Cache
+// $factoriesCache->save('config');
+// ^^^ Uncomment this line if you want to use Config Caching.
+
 // Exits the application, setting the exit code for CLI-based applications
 // that might be watching.
 exit(EXIT_SUCCESS);

spark

@@ -78,6 +78,11 @@ require rtrim($paths->systemDirectory, '\\/ ') . DIRECTORY_SEPARATOR . 'bootstra
 require_once SYSTEMPATH . 'Config/DotEnv.php';
 (new CodeIgniter\Config\DotEnv(ROOTPATH))->load();
 
+// Define ENVIRONMENT
+if (! defined('ENVIRONMENT')) {
+    define('ENVIRONMENT', env('CI_ENVIRONMENT', 'production'));
+}
+
 // Grab our CodeIgniter
 $app = Config\Services::codeigniter();
 $app->initialize();

system/Cache/FactoriesCache.php

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <[email protected]>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Cache;
+
+use CodeIgniter\Cache\FactoriesCache\FileVarExportHandler;
+use CodeIgniter\Config\Factories;
+
+final class FactoriesCache
+{
+    /**
+     * @var CacheInterface|FileVarExportHandler
+     */
+    private $cache;
+
+    /**
+     * @param CacheInterface|FileVarExportHandler|null $cache
+     */
+    public function __construct($cache = null)
+    {
+        $this->cache = $cache ?? new FileVarExportHandler();
+    }
+
+    public function save(string $component): void
+    {
+        if (! Factories::isUpdated($component)) {
+            return;
+        }
+
+        $data = Factories::getComponentInstances($component);
+
+        $this->cache->save($this->getCacheKey($component), $data, 3600 * 24);
+    }
+
+    private function getCacheKey(string $component): string
+    {
+        return 'FactoriesCache_' . $component;
+    }
+
+    public function load(string $component): bool
+    {
+        $key = $this->getCacheKey($component);
+
+        if (! $data = $this->cache->get($key)) {
+            return false;
+        }
+
+        Factories::setComponentInstances($component, $data);
+
+        return true;
+    }
+
+    public function delete(string $component): void
+    {
+        $this->cache->delete($this->getCacheKey($component));
+    }
+}

system/Cache/FactoriesCache/FileVarExportHandler.php

@@ -0,0 +1,44 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <[email protected]>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Cache\FactoriesCache;
+
+final class FileVarExportHandler
+{
+    private string $path = WRITEPATH . 'cache';
+
+    /**
+     * @param array|bool|float|int|object|string|null $val
+     */
+    public function save(string $key, $val): void
+    {
+        $val = var_export($val, true);
+
+        // Write to temp file first to ensure atomicity
+        $tmp = $this->path . "/{$key}." . uniqid('', true) . '.tmp';
+        file_put_contents($tmp, '<?php return ' . $val . ';', LOCK_EX);
+
+        rename($tmp, $this->path . "/{$key}");
+    }
+
+    public function delete(string $key): void
+    {
+        @unlink($this->path . "/{$key}");
+    }
+
+    /**
+     * @return array|bool|float|int|object|string|null
+     */
+    public function get(string $key)
+    {
+        return @include $this->path . "/{$key}";
+    }
+}

system/CodeIgniter.php

@@ -200,7 +200,6 @@ public function __construct(App $config)
     public function initialize()
     {
         // Define environment variables
-        $this->detectEnvironment();
         $this->bootstrapEnvironment();
 
         // Setup Exception Handling
@@ -560,6 +559,8 @@ protected function handleRequest(?RouteCollectionInterface $routes, Cache $cache
      *     production
      *
      * @codeCoverageIgnore
+     *
+     * @deprecated 4.4.0 No longer used. Moved to index.php and spark.
      */
     protected function detectEnvironment()
     {

system/Config/BaseConfig.php

@@ -26,6 +26,8 @@
  * from the environment.
  *
  * These can be set within the .env file.
+ *
+ * @phpstan-consistent-constructor
  */
 class BaseConfig
 {
@@ -37,6 +39,11 @@ class BaseConfig
      */
     public static $registrars = [];
 
+    /**
+     * Whether to override properties by Env vars and Registrars.
+     */
+    public static bool $override = true;
+
     /**
      * Has module discovery happened yet?
      *
@@ -51,6 +58,21 @@ class BaseConfig
      */
     protected static $moduleConfig;
 
+    public static function __set_state(array $array)
+    {
+        static::$override = false;
+        $obj              = new static();
+        static::$override = true;
+
+        $properties = array_keys(get_object_vars($obj));
+
+        foreach ($properties as $property) {
+            $obj->{$property} = $array[$property];
+        }
+
+        return $obj;
+    }
+
     /**
      * Will attempt to get environment variables with names
      * that match the properties of the child class.
@@ -61,6 +83,10 @@ public function __construct()
     {
         static::$moduleConfig = config(Modules::class);
 
+        if (! static::$override) {
+            return;
+        }
+
         $this->registerProperties();
 
         $properties  = array_keys(get_object_vars($this));

system/Config/Factories.php

@@ -80,6 +80,15 @@ class Factories
      */
     protected static $instances = [];
 
+    /**
+     * Whether the component instances are updated?
+     *
+     * @var array<string, true> [component => true]
+     *
+     * @internal For caching only
+     */
+    protected static $updated = [];
+
     /**
      * Define the class to load. You can *override* the concrete class.
      *
@@ -153,6 +162,7 @@ public static function __callStatic(string $component, array $arguments)
 
         self::$instances[$options['component']][$class] = new $class(...$arguments);
         self::$aliases[$options['component']][$alias]   = $class;
+        self::$updated[$options['component']]           = true;
 
         // If a short classname is specified, also register FQCN to share the instance.
         if (! isset(self::$aliases[$options['component']][$class])) {
@@ -383,7 +393,8 @@ public static function reset(?string $component = null)
             unset(
                 static::$options[$component],
                 static::$aliases[$component],
-                static::$instances[$component]
+                static::$instances[$component],
+                static::$updated[$component]
             );
 
             return;
@@ -392,6 +403,7 @@ public static function reset(?string $component = null)
         static::$options   = [];
         static::$aliases   = [];
         static::$instances = [];
+        static::$updated   = [];
     }
 
     /**
@@ -440,4 +452,46 @@ public static function getBasename(string $alias): string
 
         return $alias;
     }
+
+    /**
+     * Gets component data for caching.
+     *
+     * @internal For caching only
+     */
+    public static function getComponentInstances(string $component): array
+    {
+        if (! isset(static::$aliases[$component])) {
+            return [
+                'aliases'   => [],
+                'instances' => [],
+            ];
+        }
+
+        return [
+            'aliases'   => static::$aliases[$component],
+            'instances' => self::$instances[$component],
+        ];
+    }
+
+    /**
+     * Sets component data
+     *
+     * @internal For caching only
+     */
+    public static function setComponentInstances(string $component, array $data): void
+    {
+        static::$aliases[$component] = $data['aliases'];
+        self::$instances[$component] = $data['instances'];
+        unset(self::$updated[$component]);
+    }
+
+    /**
+     * Whether the component instances are updated?
+     *
+     * @internal For caching only
+     */
+    public static function isUpdated(string $component): bool
+    {
+        return isset(self::$updated[$component]);
+    }
 }

system/Config/Services.php

@@ -117,7 +117,7 @@ public static function cache(?Cache $config = null, bool $getShared = true)
             return static::getSharedInstance('cache', $config);
         }
 
-        $config ??= new Cache();
+        $config ??= config(Cache::class);
 
         return CacheFactory::getHandler($config);
     }

system/HTTP/UserAgent.php

@@ -102,7 +102,7 @@ class UserAgent
      */
     public function __construct(?UserAgents $config = null)
     {
-        $this->config = $config ?? new UserAgents();
+        $this->config = $config ?? config(UserAgents::class);
 
         if (isset($_SERVER['HTTP_USER_AGENT'])) {
             $this->agent = trim($_SERVER['HTTP_USER_AGENT']);

system/Modules/Modules.php

@@ -15,6 +15,8 @@
  * Modules Class
  *
  * @see https://codeigniter.com/user_guide/general/modules.html
+ *
+ * @phpstan-consistent-constructor
  */
 class Modules
 {
@@ -39,6 +41,11 @@ class Modules
      */
     public $aliases = [];
 
+    public function __construct()
+    {
+        // For @phpstan-consistent-constructor
+    }
+
     /**
      * Should the application auto-discover the requested resource.
      */
@@ -50,4 +57,17 @@ public function shouldDiscover(string $alias): bool
 
         return in_array(strtolower($alias), $this->aliases, true);
     }
+
+    public static function __set_state(array $array)
+    {
+        $obj = new static();
+
+        $properties = array_keys(get_object_vars($obj));
+
+        foreach ($properties as $property) {
+            $obj->{$property} = $array[$property];
+        }
+
+        return $obj;
+    }
 }