Merge branch '4.4' into 5.0

* 4.4: (23 commits)
  [Filesystem] Handle paths on different drives
  [WebProfiler] Do not add src-elem CSP directives if they do not exist
  [Yaml] fix parse error when unindented collections contain a comment
  Execute docker dependent tests with github actions
  Update exception.html.php
  [3.4][Inflector] Improve testSingularize() argument name
  [Inflector] Fix testPluralize() arguments names
  [PhpUnitBridge] fix PHP 5.3 compat again
  Skip validation when email is an empty object
  fix sr_Latn translation
  [Validator] fix lazy property usage.
  Fix annotation
  [Debug][ErrorHandler] cleanup phpunit.xml.dist files
  [Translation] Fix for translation:update command updating ICU messages
  [PhpUnitBridge] fix compat with PHP 5.3
  bumped Symfony version to 4.4.9
  updated VERSION for 4.4.8
  updated CHANGELOG for 4.4.8
  provide a useful message when extension types don't match
  [Cache] Fixed not supported Redis eviction policies
  ...

Author: nicolas-grekas

Command/TranslationUpdateCommand.php

@@ -318,7 +318,14 @@ private function filterCatalogue(MessageCatalogue $catalogue, string $domain): M
     {
         $filteredCatalogue = new MessageCatalogue($catalogue->getLocale());
 
-        if ($messages = $catalogue->all($domain)) {
+        // extract intl-icu messages only
+        $intlDomain = $domain.MessageCatalogueInterface::INTL_DOMAIN_SUFFIX;
+        if ($intlMessages = $catalogue->all($intlDomain)) {
+            $filteredCatalogue->add($intlMessages, $intlDomain);
+        }
+
+        // extract all messages and subtract intl-icu messages
+        if ($messages = array_diff($catalogue->all($domain), $intlMessages)) {
             $filteredCatalogue->add($messages, $domain);
         }
         foreach ($catalogue->getResources() as $resource) {

Tests/Functional/CachePoolsTest.php

@@ -26,9 +26,12 @@ public function testCachePools()
 
     /**
      * @requires extension redis
+     * @group integration
      */
     public function testRedisCachePools()
     {
+        $this->skipIfRedisUnavailable();
+
         try {
             $this->doTestCachePools(['root_config' => 'redis_config.yml', 'environment' => 'redis_cache'], RedisAdapter::class);
         } catch (\PHPUnit\Framework\Error\Warning $e) {
@@ -51,9 +54,12 @@ public function testRedisCachePools()
 
     /**
      * @requires extension redis
+     * @group integration
      */
     public function testRedisCustomCachePools()
     {
+        $this->skipIfRedisUnavailable();
+
         try {
             $this->doTestCachePools(['root_config' => 'redis_custom_config.yml', 'environment' => 'custom_redis_cache'], RedisAdapter::class);
         } catch (\PHPUnit\Framework\Error\Warning $e) {
@@ -121,4 +127,13 @@ protected static function createKernel(array $options = []): KernelInterface
     {
         return parent::createKernel(['test_case' => 'CachePools'] + $options);
     }
+
+    private function skipIfRedisUnavailable()
+    {
+        try {
+            (new \Redis())->connect(getenv('REDIS_HOST'));
+        } catch (\Exception $e) {
+            self::markTestSkipped($e->getMessage());
+        }
+    }
 }