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<?php |
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/* |
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* hirak/prestissimo |
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* @author Hiraku NAKANO |
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* @license MIT https://github.com/hirak/prestissimo |
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*/ |
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namespace Hirak\Prestissimo; |
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use Composer\Package; |
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use Composer\IO; |
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use Composer\Config as CConfig; |
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/** |
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* |
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*/ |
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class ParallelDownloader |
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{ |
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/** @var IO/IOInterface */ |
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protected $io; |
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/** @var CConfig */ |
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protected $config; |
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/** @var int */ |
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protected $totalCnt = 0; |
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protected $successCnt = 0; |
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protected $skippedCnt = 0; |
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protected $failureCnt = 0; |
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public function __construct(IO\IOInterface $io, CConfig $config) |
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{ |
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$this->io = $io; |
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$this->config = $config; |
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} |
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/** |
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* @param Package\PackageInterface[] $packages |
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* @param array $pluginConfig |
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* @return void |
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*/ |
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public function download(array $packages, array $pluginConfig) |
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{ |
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$mh = curl_multi_init(); |
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$unused = array(); |
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$maxConns = $pluginConfig['maxConnections']; |
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for ($i = 0; $i < $maxConns; ++$i) { |
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$unused[] = curl_init(); |
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} |
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// @codeCoverageIgnoreStart |
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if (function_exists('curl_share_init')) { |
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$sh = curl_share_init(); |
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curl_share_setopt($sh, CURLSHOPT_SHARE, CURL_LOCK_DATA_SSL_SESSION); |
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foreach ($unused as $ch) { |
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curl_setopt($ch, CURLOPT_SHARE, $sh); |
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} |
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} |
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if (function_exists('curl_multi_setopt')) { |
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if ($pluginConfig['pipeline']) { |
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curl_multi_setopt($mh, CURLMOPT_PIPELINING, true); |
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} |
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} |
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// @codeCoverageIgnoreEnd |
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$cachedir = rtrim($this->config->get('cache-files-dir'), '\/'); |
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$chFpMap = array(); |
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$running = 0; //ref type |
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$remains = 0; //ref type |
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$this->totalCnt = count($packages); |
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$this->successCnt = 0; |
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$this->skippedCnt = 0; |
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$this->failureCnt = 0; |
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$this->io->write(" Prefetch start: total: $this->totalCnt</comment>"); |
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EVENTLOOP: |
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// prepare curl resources |
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while (count($unused) > 0 && count($packages) > 0) { |
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$package = array_pop($packages); |
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$filepath = $cachedir . DIRECTORY_SEPARATOR . static::getCacheKey($package); |
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if (file_exists($filepath)) { |
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++$this->skippedCnt; |
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continue; |
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} |
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$ch = array_pop($unused); |
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// make file resource |
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$chFpMap[(int)$ch] = $outputFile = new OutputFile($filepath); |
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// make url |
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$url = $package->getDistUrl(); |
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if (! $url) { |
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++$this->skippedCnt; |
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continue; |
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} |
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if ($package->getDistMirrors()) { |
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$url = current($package->getDistUrls()); |
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} |
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$host = parse_url($url, PHP_URL_HOST) ?: ''; |
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$request = Factory::getHttpGetRequest($host, $url, $this->io, $this->config, $pluginConfig); |
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if (in_array($package->getName(), $pluginConfig['privatePackages'])) { |
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$request->maybePublic = false; |
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} else { |
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$request->maybePublic = (bool)preg_match('%^(?:https|git)://github\.com%', $package->getSourceUrl()); |
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} |
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$onPreDownload = Factory::getPreEvent($request); |
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$onPreDownload->notify(); |
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$opts = $request->getCurlOpts(); |
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unset($opts[CURLOPT_ENCODING]); |
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unset($opts[CURLOPT_USERPWD]); // ParallelDownloader doesn't support private packages. |
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curl_setopt_array($ch, $opts); |
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curl_setopt($ch, CURLOPT_FILE, $outputFile->getPointer()); |
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curl_multi_add_handle($mh, $ch); |
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} |
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// wait for any event |
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do { |
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$runningBefore = $running; |
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while (CURLM_CALL_MULTI_PERFORM === curl_multi_exec($mh, $running)); |
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SELECT: |
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$eventCount = curl_multi_select($mh, 5); |
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if ($eventCount === -1) { |
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usleep(200 * 1000); |
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continue; |
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} |
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while (CURLM_CALL_MULTI_PERFORM === curl_multi_exec($mh, $running)); |
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if ($running > 0 && $running === $runningBefore) { |
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goto SELECT; |
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} |
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do { |
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if ($raised = curl_multi_info_read($mh, $remains)) { |
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$ch = $raised['handle']; |
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$errno = curl_errno($ch); |
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$info = curl_getinfo($ch); |
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curl_setopt($ch, CURLOPT_FILE, STDOUT); |
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$index = (int)$ch; |
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$outputFile = $chFpMap[$index]; |
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unset($chFpMap[$index]); |
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if (CURLE_OK === $errno && 200 === $info['http_code']) { |
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++$this->successCnt; |
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$outputFile->setSuccess(); |
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} else { |
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++$this->failureCnt; |
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} |
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unset($outputFile); |
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$this->io->write($this->makeDownloadingText($info['url'])); |
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curl_multi_remove_handle($mh, $ch); |
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$unused[] = $ch; |
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} |
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} while ($remains > 0); |
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if (count($packages) > 0) { |
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goto EVENTLOOP; |
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} |
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} while ($running > 0); |
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$this->io->write(" Finished: <comment>success: $this->successCnt, skipped: $this->skippedCnt, failure: $this->failureCnt, total: $this->totalCnt</comment>"); |
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foreach ($unused as $ch) { |
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curl_close($ch); |
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} |
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curl_multi_close($mh); |
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} |
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/** |
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* @param string $url |
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* @return string |
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*/ |
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private function makeDownloadingText($url) |
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{ |
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$request = new Aspects\HttpGetRequest('example.com', $url, $this->io); |
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$request->query = array(); |
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return " <comment>$this->successCnt/$this->totalCnt</comment>: {$request->getURL()}"; |
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} |
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public static function getCacheKey(Package\PackageInterface $p) |
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{ |
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$distRef = $p->getDistReference(); |
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if (preg_match('{^[a-f0-9]{40}$}', $distRef)) { |
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return "{$p->getName()}/$distRef.{$p->getDistType()}"; |
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} |
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return "{$p->getName()}/{$p->getVersion()}-$distRef.{$p->getDistType()}"; |
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} |
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} |
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hirak /
prestissimo
