function RarDownloader::extract

Overrides ArchiveDownloader::extract

File

vendor/composer/composer/src/Composer/Downloader/RarDownloader.php, line 31

Class

RarDownloader

RAR archive downloader.

Namespace

Composer\Downloader

Code

protected function extract(PackageInterface $package, string $file, string $path) : PromiseInterface {
    $processError = null;
    // Try to use unrar on *nix
    if (!Platform::isWindows()) {
        $command = [
            'sh',
            '-c',
            'unrar x -- "$0" "$1" >/dev/null && chmod -R u+w "$1"',
            $file,
            $path,
        ];
        if (0 === $this->process
            ->execute($command, $ignoredOutput)) {
            return \React\Promise\resolve(null);
        }
        $processError = 'Failed to execute ' . implode(' ', $command) . "\n\n" . $this->process
            ->getErrorOutput();
    }
    if (!class_exists('RarArchive')) {
        // php.ini path is added to the error message to help users find the correct file
        $iniMessage = IniHelper::getMessage();
        $error = "Could not decompress the archive, enable the PHP rar extension or install unrar.\n" . $iniMessage . "\n" . $processError;
        if (!Platform::isWindows()) {
            $error = "Could not decompress the archive, enable the PHP rar extension.\n" . $iniMessage;
        }
        throw new \RuntimeException($error);
    }
    $rarArchive = RarArchive::open($file);
    if (false === $rarArchive) {
        throw new \UnexpectedValueException('Could not open RAR archive: ' . $file);
    }
    $entries = $rarArchive->getEntries();
    if (false === $entries) {
        throw new \RuntimeException('Could not retrieve RAR archive entries');
    }
    foreach ($entries as $entry) {
        if (false === $entry->extract($path)) {
            throw new \RuntimeException('Could not extract entry');
        }
    }
    $rarArchive->close();
    return \React\Promise\resolve(null);
}