DI: support ENV variables

.docs/README.md

@@ -84,6 +84,23 @@ This package provides several serializers:
 - IgbinarySerializer
 - SnappySerializer
 
+### ENV variables
+
+In the need of passing down ENV variables to the configuration you can use `nette/configurator` and [**dynamic parameters**](https://doc.nette.org/en/3.1/bootstrap#toc-dynamic-parameters).
+
+```php
+$configurator->addDynamicParameters([
+	'env' => getenv(),
+]);
+```
+
+```neon
+redis:
+	connection:
+		default:
+			uri: %env.REDIS_HOST%
+```
+
 ### Sessions and cache
 
 When using sessions and cache make sure you use **2 different databases**. One for cache and one for sessions. In case you will use only 1 database for both **you will loose sessions when clearing cache.**

src/DI/RedisExtension.php

@@ -30,7 +30,7 @@ public function getConfigSchema(): Schema
 			'debug' => Expect::bool(false),
 			'serializer' => Expect::anyOf(Expect::string()),
 			'connection' => Expect::arrayOf(Expect::structure([
-				'uri' => Expect::anyOf(Expect::string(), Expect::listOf(Expect::string()))->default('tcp://127.0.0.1:6379'),
+				'uri' => Expect::anyOf(Expect::string(), Expect::listOf(Expect::string()))->default('tcp://127.0.0.1:6379')->dynamic(),
 				'options' => Expect::array(),
 				'storage' => Expect::bool(false),
 				'sessions' => Expect::anyOf(

tests/cases/DI/RedisExtension.phpt

@@ -131,3 +131,31 @@ Toolkit::test(function (): void {
 	Assert::notSame(Liberator::of($storage1)->client, Liberator::of($storage2)->client);
 	Assert::notSame(Liberator::of($storage1)->journal, Liberator::of($storage2)->journal);
 });
+
+// Dynamic parameters
+Toolkit::test(function (): void {
+	$container = Container::of()
+		->withCompiler(function (Compiler $compiler): void {
+			$compiler->addExtension('redis', new RedisExtension());
+			$compiler->addConfig(Helpers::neon('
+				redis:
+					connection:
+						default:
+							uri: %env.REDIS_URI%
+			'));
+		})
+		->withDynamicParameters([
+			'env' => [
+				'REDIS_URI' => 'tcp://1.2.3.4:1234',
+			],
+		])
+		->build();
+
+	/** @var Client $client */
+	$client = $container->getService('redis.connection.default.client');
+
+	$parameters = Liberator::of($client->getConnection())->parameters->toArray();
+
+	Assert::equal('1.2.3.4', $parameters['host']);
+	Assert::equal(1234, $parameters['port']);
+});

tests/toolkit/Container.php

@@ -16,6 +16,9 @@ final class Container
 	/** @var callable[] */
 	private $onCompile = [];
 
+	/** @var mixed[] */
+	private $parameters = [];
+
 	public function __construct(string $key)
 	{
 		$this->key = $key;
@@ -63,6 +66,13 @@ public function withDefaultParameters(): Container
 		return $this;
 	}
 
+	public function withDynamicParameters(array $parameters): Container
+	{
+		$this->parameters = $parameters;
+
+		return $this;
+	}
+
 	public function withCompiler(callable $cb): Container
 	{
 		$this->onCompile[] = function (Compiler $compiler) use ($cb): void {
@@ -79,9 +89,11 @@ public function build(): NetteContainer
 			foreach ($this->onCompile as $cb) {
 				$cb($compiler);
 			}
+
+			$compiler->setDynamicParameterNames(array_keys($this->parameters));
 		}, $this->key);
 
-		return new $class();
+		return new $class($this->parameters);
 	}
 
 }