function Composer::preAutoloadDump

Add vendor classes to Composer's static classmap.

Parameters

\Composer\Script\Event $event: The event.

File

core/lib/Drupal/Core/Composer/Composer.php, line 21

Class

Composer

Provides static functions for composer script events.

Namespace

Code

public static function preAutoloadDump(Event $event) {
    // Get the configured vendor directory.
    $vendor_dir = $event->getComposer()
        ->getConfig()
        ->get('vendor-dir');
    // We need the root package so we can add our classmaps to its loader.
    $package = $event->getComposer()
        ->getPackage();
    // We need the local repository so that we can query and see if it's likely
    // that our files are present there.
    $repository = $event->getComposer()
        ->getRepositoryManager()
        ->getLocalRepository();
    // This is, essentially, a null constraint. We only care whether the package
    // is present in the vendor directory yet, but findPackage() requires it.
    $constraint = new Constraint('>', '');
    // It's possible that there is no classmap specified in a custom project
    // composer.json file. We need one so we can optimize lookup for some of our
    // dependencies.
    $autoload = $package->getAutoload();
    if (!isset($autoload['classmap'])) {
        $autoload['classmap'] = [];
    }
    // Check for packages used prior to the default classloader being able to
    // use APCu and optimize them if they're present.
    // @see \Drupal\Core\DrupalKernel::boot()
    if ($repository->findPackage('symfony/http-foundation', $constraint)) {
        $autoload['classmap'] = array_merge($autoload['classmap'], [
            $vendor_dir . '/symfony/http-foundation/Request.php',
            $vendor_dir . '/symfony/http-foundation/RequestStack.php',
            $vendor_dir . '/symfony/http-foundation/ParameterBag.php',
            $vendor_dir . '/symfony/http-foundation/FileBag.php',
            $vendor_dir . '/symfony/http-foundation/ServerBag.php',
            $vendor_dir . '/symfony/http-foundation/HeaderBag.php',
            $vendor_dir . '/symfony/http-foundation/HeaderUtils.php',
        ]);
    }
    if ($repository->findPackage('symfony/http-kernel', $constraint)) {
        $autoload['classmap'] = array_merge($autoload['classmap'], [
            $vendor_dir . '/symfony/http-kernel/HttpKernel.php',
            $vendor_dir . '/symfony/http-kernel/HttpKernelInterface.php',
            $vendor_dir . '/symfony/http-kernel/TerminableInterface.php',
        ]);
    }
    if ($repository->findPackage('symfony/dependency-injection', $constraint)) {
        $autoload['classmap'] = array_merge($autoload['classmap'], [
            $vendor_dir . '/symfony/dependency-injection/ContainerInterface.php',
        ]);
    }
    if ($repository->findPackage('psr/container', $constraint)) {
        $autoload['classmap'] = array_merge($autoload['classmap'], [
            $vendor_dir . '/psr/container/src/ContainerInterface.php',
        ]);
    }
    $package->setAutoload($autoload);
}