class.ilFileSystemConfigNotChangedObjective.php

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<?php
 
use ILIAS\Setup\Objective;
use ILIAS\Setup\Environment;
use ILIAS\Setup\UnachievableException;
 
class ilFileSystemConfigNotChangedObjective implements Objective
{
    public function __construct(protected \ilFileSystemSetupConfig $config)
    {
    }
 
    public function getHash(): string
    {
        return hash("sha256", self::class);
    }
 
    public function getLabel(): string
    {
        return "Config for Filesystems did not change.";
    }
 
    public function isNotable(): bool
    {
        return false;
    }
 
    public function getPreconditions(Environment $environment): array
    {
        return [
            new ilIniFilesLoadedObjective(),
            new ilFileSystemDirectoriesCreatedObjective($this->config)
        ];
    }
 
    public function achieve(Environment $environment): Environment
    {
        $ini = $environment->getResource(Environment::RESOURCE_ILIAS_INI);
 
        $current = $ini->readVariable("clients", "datadir");
        $new = $this->config->getDataDir();
        if ($current !== $new) {
            throw new UnachievableException(
                "You seem to try to move the ILIAS data-directory from '$current' " .
                "to '$new', the client.ini.php contains a different path then the " .
                "config you are using. This is not supported by the setup."
            );
        }
 
        return $environment;
    }
 
    public function isApplicable(Environment $environment): bool
    {
        $ini = $environment->getResource(Environment::RESOURCE_ILIAS_INI);
 
        return $ini->readVariable("clients", "datadir") !== $this->config->getDataDir();
    }
}