gistfile1.txt

public static function populateMappings(AutoloaderInterface $autoloader, DirectoryList $dirList)
    {
        $modulesDir = $dirList->getPath(DirectoryList::MODULES);
        $generationDir = $dirList->getPath(DirectoryList::GENERATION);
        $frameworkDir = $dirList->getPath(DirectoryList::LIB_INTERNAL);

        $autoloader->addPsr4('Magento\\', [$modulesDir . '/Magento/', $generationDir . '/Magento/'], true);

        $autoloader->addPsr0('Apache_', $frameworkDir, true);
        $autoloader->addPsr0('Cm_', $frameworkDir, true);
        $autoloader->addPsr0('Credis_', $frameworkDir, true);
        $autoloader->addPsr0('Less_', $frameworkDir, true);
        $autoloader->addPsr0('Symfony\\', $frameworkDir, true);

        /** Required for Zend functionality */
        FileResolver::addIncludePath($frameworkDir);

        /** Required for code generation to occur */
        FileResolver::addIncludePath($generationDir);

        /** Required to autoload custom classes */
        $autoloader->addPsr0('', [$modulesDir, $generationDir]);
    }