/**
* The callback function of the event `ScriptEvents::PRE_AUTOLOAD_DUMP`
*
* @param Event $event The Composer event
*
* @return void
*
* @throws \InvalidArgumentException with Symfony\Component\Finder\Finder
* @throws \RuntimeException with Composer\Config
*/
public function findRewrite(Event $event)
{
$toRewrite = array();
$composer = $event->getComposer();
$config = $this->config;
$allPath = array();
$packages = $composer->getRepositoryManager()->getLocalRepository()->getPackages();
$autoloads = $composer->getAutoloadGenerator()->parseAutoloads($composer->getAutoloadGenerator()->buildPackageMap($composer->getInstallationManager(), $composer->getPackage(), $packages), $composer->getPackage());
$worker = new Worker();
$worker->setCacheDir($config->has('rewrite-dir') ? $config->get('rewrite-dir') : $config->get('vendor-dir') . DIRECTORY_SEPARATOR . '_rewrite');
$this->output('very-verbose', 'Clear rewriters cache');
$worker->clearCache();
foreach ($autoloads as $loaderType => $package) {
if (!in_array($loaderType, array('psr-4', 'psr-0'), true)) {
continue;
}
foreach ($package as $packageName => $paths) {
$this->output('very-verbose', 'Analysing namespace "%s" (%s)', array($packageName, $loaderType));
if (in_array($packageName, $this->getIgnoreNamespace($composer), true)) {
$this->output('very-verbose', ' <info>(skipped)</info>');
continue;
}
/**
* The file in reading
*
* @var SplFileInfo $file
*/
foreach (Finder::create()->in(array_values($paths))->exclude($worker->getCacheDir())->name('*.php')->ignoreDotFiles(true)->ignoreVCS(true)->ignoreUnreadableDirs(true)->files() as $file) {
$this->output('debug', '- On file "%s"', array($file->getRealPath()));
if (in_array(Rewriter::class, Getter::readFromFile($file->getRealPath(), Getter::TYPE_INTERFACES), true)) {
$this->output('very-verbose', ' - Find "<info>%s</info>" rewriting "<comment>%s</comment>"', array(Getter::getFQCN($file->getRealPath()), Getter::readFromFile($file->getRealPath(), Getter::TYPE_PARENT_NAME)));
/**
* The FQCN of the parent class (the rewritten FQCN)
*
* @var string $parentFQCN
*/
$parentFQCN = Getter::readFromFile($file->getRealPath(), Getter::TYPE_PARENT_NAME);
$toRewrite[$parentFQCN] = $file->getRealPath();
continue;
}
$allPath[$file->getRealPath()] = Getter::getFQCN($file->getRealPath());
}
}
}
$allPath = array_filter($allPath, function ($value) use($toRewrite) {
return array_key_exists($value, $toRewrite);
});
$this->output('verbose', 'Build rewrite class cache');
$allPath = array_flip($allPath);
foreach ($toRewrite as $parentClassName => $rewriteFile) {
$this->output('very-verbose', ' - For class "<info>%s</info>" (rewriting "<comment>%s</comment>")', array(Getter::getFQCN($rewriteFile), $parentClassName));
$worker->rewriteClass($allPath[$parentClassName], $rewriteFile);
}
$this->output('verbose', 'Add rewrite class in Composer Autoload');
$autoload = $composer->getPackage()->getAutoload();
$autoload['classmap'][] = $worker->getCacheDir();
$composer->getPackage()->setAutoload($autoload);
}
/**
* Rewrite a class
*
* @param string $parentFile The path to the parent class (rewritten class)
* @param string $replacementFile The path to the replacement class (rewriter class)
*
* @return void
*/
public function rewriteClass($parentFile, $replacementFile)
{
// Adding a 'C' at the begin to avoid issue with '\' (namespace separator)
$parentHash = 'C' . sha1_file($parentFile);
// Adding a 'C' at the begin to avoid issue with '\' (namespace separator)
$replacementHash = 'C' . sha1_file($replacementFile);
$namespace = Getter::readFromFile($parentFile, Getter::TYPE_NAMESPACE);
$className = Getter::readFromFile($parentFile, Getter::TYPE_SHORT_NAME);
$parentFCQN = $namespace . '\\' . $parentHash;
file_put_contents($this->cacheDir . DIRECTORY_SEPARATOR . $parentHash . '.php', $this->rebuildClass($parentFile, null, $parentHash));
file_put_contents($this->cacheDir . DIRECTORY_SEPARATOR . $replacementHash . '.php', $this->rebuildClass($replacementFile, null, $className, '\\' . $parentFCQN));
$this->rewritten[$replacementHash . '.php'] = $namespace . '\\' . $className;
}