TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
commit af8cc155b5
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+<?php
+
+/*
+ * This file is part of the TYPO3 CMS project.
+ *
+ * It is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, either version 2
+ * of the License, or any later version.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.txt file that was distributed with this source code.
+ *
+ * The TYPO3 project - inspiring people to share!
+ */
+
+namespace TYPO3\CMS\Core\Package;
+
+use TYPO3\CMS\Core\Package\Exception\PackageStatesUnavailableException;
+
+/**
+ * This is an intermediate package manager that loads just
+ * the required extensions for the install in case the package
+ * states are unavailable.
+ */
+class FailsafePackageManager extends PackageManager
+{
+    /**
+     * @var bool TRUE if package manager is in failsafe mode
+     */
+    protected $inFailsafeMode = false;
+
+    /**
+     * Loads the states of available packages from the PackageStates.php file.
+     * The result is stored in $this->packageStatesConfiguration.
+     */
+    protected function loadPackageStates()
+    {
+        try {
+            parent::loadPackageStates();
+        } catch (PackageStatesUnavailableException $exception) {
+            $this->inFailsafeMode = true;
+            $this->scanAvailablePackages();
+        }
+    }
+
+    /**
+     * Never try to access the cache in failsafe mode
+     */
+    protected function saveToPackageCache(): void
+    {
+        // Do not save cache if in rescue mode
+        if (!$this->inFailsafeMode) {
+            parent::saveToPackageCache();
+        }
+    }
+
+    /**
+     * Save states
+     */
+    protected function savePackageStates()
+    {
+        // Do not save if in rescue mode
+        if (!$this->inFailsafeMode) {
+            parent::savePackageStates();
+        }
+    }
+
+    /**
+     * To enable writing of the package states file the package states
+     * migration needs to override eventual failsafe blocks.
+     */
+    public function forceSortAndSavePackageStates()
+    {
+        $this->sortActivePackagesByDependencies();
+        parent::savePackageStates();
+    }
+
+    /**
+     * This method is a workaround for SetupService to make sure that this PackageManager
+     * can be used to mutate PackageStates to apply changes for distribution package
+     * activation.
+     *
+     * @todo Consider creating a non-failsafe PackageManager in BootService, to avoid
+     *       the need to disable failsafe mode, where it should not be enabled
+     * @internal
+     */
+    public function disableFailsafeMode(): void
+    {
+        $this->inFailsafeMode = false;
+    }
+}