function GzipDownloader::extract

Overrides ArchiveDownloader::extract

File

vendor/composer/composer/src/Composer/Downloader/GzipDownloader.php, line 27

Class

GzipDownloader

GZip archive downloader.

Namespace

Composer\Downloader

Code

protected function extract(PackageInterface $package, string $file, string $path) : PromiseInterface {
    $filename = pathinfo(parse_url(strtr((string) $package->getDistUrl(), '\\', '/'), PHP_URL_PATH), PATHINFO_FILENAME);
    $targetFilepath = $path . DIRECTORY_SEPARATOR . $filename;
    // Try to use gunzip on *nix
    if (!Platform::isWindows()) {
        $command = [
            'sh',
            '-c',
            'gzip -cd -- "$0" > "$1"',
            $file,
            $targetFilepath,
        ];
        if (0 === $this->process
            ->execute($command, $ignoredOutput)) {
            return \React\Promise\resolve(null);
        }
        if (extension_loaded('zlib')) {
            // Fallback to using the PHP extension.
            $this->extractUsingExt($file, $targetFilepath);
            return \React\Promise\resolve(null);
        }
        $processError = 'Failed to execute ' . implode(' ', $command) . "\n\n" . $this->process
            ->getErrorOutput();
        throw new \RuntimeException($processError);
    }
    // Windows version of PHP has built-in support of gzip functions
    $this->extractUsingExt($file, $targetFilepath);
    return \React\Promise\resolve(null);
}