/**
* {@inheritdoc}
*/
public function prepareInstallation(AssetMapping $mapping)
{
$glob = $mapping->getGlob();
$targetName = $mapping->getTargetName();
$resources = $this->repo->find($glob);
if ($resources->isEmpty()) {
throw NotInstallableException::noResourceMatches($glob);
}
if (!$this->installTargets->contains($targetName)) {
throw NotInstallableException::targetNotFound($targetName);
}
$target = $this->installTargets->get($targetName);
$installerName = $target->getInstallerName();
if (!$this->installerManager->hasInstallerDescriptor($installerName)) {
throw NotInstallableException::installerNotFound($installerName);
}
$installerDescriptor = $this->installerManager->getInstallerDescriptor($installerName);
$installer = $this->loadInstaller($installerDescriptor);
$rootDir = $this->environment->getRootDirectory();
$params = new InstallationParams($installer, $installerDescriptor, $resources, $mapping, $target, $rootDir);
$installer->validateParams($params);
return $params;
}
