Neos\Flow\Core\Migrations\Manager::initialize PHP Method

    protected function initialize()
    {
        if ($this->packagesData !== null) {
            return;
        }
        $this->packagesData = Tools::getPackagesData($this->packagesPath);
        $this->migrations = array();
        foreach ($this->packagesData as $packageKey => $packageData) {
            $this->registerMigrationFiles(Files::concatenatePaths(array($this->packagesPath, $packageData['category'], $packageKey)));
        }
        ksort($this->migrations);
    }