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