class ClearCacheCommand

class ClearCacheCommand extends BaseCommand {
    protected function configure() : void {
        $this->setName('clear-cache')
            ->setAliases([
            'clearcache',
            'cc',
        ])
            ->setDescription('Clears composer\'s internal package cache')
            ->setDefinition([
            new InputOption('gc', null, InputOption::VALUE_NONE, 'Only run garbage collection, not a full cache clear'),
        ])
            ->setHelp(<<<EOT
The <info>clear-cache</info> deletes all cached packages from composer's
cache directory.

Read more at https://getcomposer.org/doc/03-cli.md#clear-cache-clearcache-cc
EOT
);
    }
    protected function execute(InputInterface $input, OutputInterface $output) : int {
        $composer = $this->tryComposer();
        if ($composer !== null) {
            $config = $composer->getConfig();
        }
        else {
            $config = Factory::createConfig();
        }
        $io = $this->getIO();
        $cachePaths = [
            'cache-vcs-dir' => $config->get('cache-vcs-dir'),
            'cache-repo-dir' => $config->get('cache-repo-dir'),
            'cache-files-dir' => $config->get('cache-files-dir'),
            'cache-dir' => $config->get('cache-dir'),
        ];
        foreach ($cachePaths as $key => $cachePath) {
            // only individual dirs get garbage collected
            if ($key === 'cache-dir' && $input->getOption('gc')) {
                continue;
            }
            $cachePath = realpath($cachePath);
            if (!$cachePath) {
                $io->writeError("<info>Cache directory does not exist ({$key}): {$cachePath}</info>");
                continue;
            }
            $cache = new Cache($io, $cachePath);
            $cache->setReadOnly($config->get('cache-read-only'));
            if (!$cache->isEnabled()) {
                $io->writeError("<info>Cache is not enabled ({$key}): {$cachePath}</info>");
                continue;
            }
            if ($input->getOption('gc')) {
                $io->writeError("<info>Garbage-collecting cache ({$key}): {$cachePath}</info>");
                if ($key === 'cache-files-dir') {
                    $cache->gc($config->get('cache-files-ttl'), $config->get('cache-files-maxsize'));
                }
                elseif ($key === 'cache-repo-dir') {
                    $cache->gc($config->get('cache-ttl'), 1024 * 1024 * 1024);
                }
                elseif ($key === 'cache-vcs-dir') {
                    $cache->gcVcsCache($config->get('cache-ttl'));
                }
            }
            else {
                $io->writeError("<info>Clearing cache ({$key}): {$cachePath}</info>");
                $cache->clear();
            }
        }
        if ($input->getOption('gc')) {
            $io->writeError('<info>All caches garbage-collected.</info>');
        }
        else {
            $io->writeError('<info>All caches cleared.</info>');
        }
        return 0;
    }

}