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<?php /* * This file is part of Composer. * * (c) Nils Adermann <[email protected]> * Jordi Boggiano <[email protected]> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Composer\Downloader; use Composer\Package\PackageInterface; use Symfony\Component\Finder\Finder; use React\Promise\PromiseInterface; use Composer\DependencyResolver\Operation\InstallOperation; /** * Base downloader for archives * * @author Kirill chEbba Chebunin <[email protected]> * @author Jordi Boggiano <[email protected]> * @author François Pluchino <[email protected]> */ abstract class ArchiveDownloader extends FileDownloader { /** * {@inheritDoc} * @throws \RuntimeException * @throws \UnexpectedValueException */ public function install(PackageInterface $package, $path, $output = true) { if ($output) { $this->io->writeError(" - " . InstallOperation::format($package) . $this->getInstallOperationAppendix($package, $path)); } $vendorDir = $this->config->get('vendor-dir'); // clean up the target directory, unless it contains the vendor dir, as the vendor dir contains // the archive to be extracted. This is the case when installing with create-project in the current directory // but in that case we ensure the directory is empty already in ProjectInstaller so no need to empty it here. if (false === strpos($this->filesystem->normalizePath($vendorDir), $this->filesystem->normalizePath($path.DIRECTORY_SEPARATOR))) { $this->filesystem->emptyDirectory($path); } do { $temporaryDir = $vendorDir.'/composer/'.substr(md5(uniqid('', true)), 0, 8); } while (is_dir($temporaryDir)); $this->addCleanupPath($package, $temporaryDir); // avoid cleaning up $path if installing in "." for eg create-project as we can not // delete the directory we are currently in on windows if (!is_dir($path) || realpath($path) !== getcwd()) { $this->addCleanupPath($package, $path); } $this->filesystem->ensureDirectoryExists($temporaryDir); $fileName = $this->getFileName($package, $path); $filesystem = $this->filesystem; $self = $this; $cleanup = function () use ($path, $filesystem, $temporaryDir, $package, $self) { // remove cache if the file was corrupted $self->clearLastCacheWrite($package); // clean up $filesystem->removeDirectory($temporaryDir); if (is_dir($path) && realpath($path) !== getcwd()) { $filesystem->removeDirectory($path); } $self->removeCleanupPath($package, $temporaryDir); $self->removeCleanupPath($package, realpath($path)); }; $promise = null; try { $promise = $this->extract($package, $fileName, $temporaryDir); } catch (\Exception $e) { $cleanup(); throw $e; } if (!$promise instanceof PromiseInterface) { $promise = \React\Promise\resolve(); } return $promise->then(function () use ($self, $package, $filesystem, $fileName, $temporaryDir, $path) { $filesystem->unlink($fileName); /** * Returns the folder content, excluding .DS_Store * * @param string $dir Directory * @return \SplFileInfo[] */ $getFolderContent = function ($dir) { $finder = Finder::create() ->ignoreVCS(false) ->ignoreDotFiles(false) ->notName('.DS_Store') ->depth(0) ->in($dir); return iterator_to_array($finder); }; $renameRecursively = null; /** * Renames (and recursively merges if needed) a folder into another one * * For custom installers, where packages may share paths, and given Composer 2's parallelism, we need to make sure * that the source directory gets merged into the target one if the target exists. Otherwise rename() by default would * put the source into the target e.g. src/ => target/src/ (assuming target exists) instead of src/ => target/ * * @param string $from Directory * @param string $to Directory * @return void */ $renameRecursively = function ($from, $to) use ($filesystem, $getFolderContent, $package, &$renameRecursively) { $contentDir = $getFolderContent($from); // move files back out of the temp dir foreach ($contentDir as $file) { $file = (string) $file; if (is_dir($to . '/' . basename($file))) { if (!is_dir($file)) { throw new \RuntimeException('Installing '.$package.' would lead to overwriting the '.$to.'/'.basename($file).' directory with a file from the package, invalid operation.'); } $renameRecursively($file, $to . '/' . basename($file)); } else { $filesystem->rename($file, $to . '/' . basename($file)); } } }; $renameAsOne = false; if (!file_exists($path)) { $renameAsOne = true; } elseif ($filesystem->isDirEmpty($path)) { try { if ($filesystem->removeDirectoryPhp($path)) { $renameAsOne = true; } } catch (\RuntimeException $e) { // ignore error, and simply do not renameAsOne } } $contentDir = $getFolderContent($temporaryDir); $singleDirAtTopLevel = 1 === count($contentDir) && is_dir(reset($contentDir)); if ($renameAsOne) { // if the target $path is clear, we can rename the whole package in one go instead of looping over the contents if ($singleDirAtTopLevel) { $extractedDir = (string) reset($contentDir); } else { $extractedDir = $temporaryDir; } $filesystem->rename($extractedDir, $path); } else { // only one dir in the archive, extract its contents out of it $from = $temporaryDir; if ($singleDirAtTopLevel) { $from = (string) reset($contentDir); } $renameRecursively($from, $path); } $promise = $filesystem->removeDirectoryAsync($temporaryDir); return $promise->then(function () use ($self, $package, $path, $temporaryDir) { $self->removeCleanupPath($package, $temporaryDir); $self->removeCleanupPath($package, $path); }); }, function ($e) use ($cleanup) { $cleanup(); throw $e; }); } /** * {@inheritDoc} */ protected function getInstallOperationAppendix(PackageInterface $package, $path) { return ': Extracting archive'; } /** * Extract file to directory * * @param string $file Extracted file * @param string $path Directory * * @throws \UnexpectedValueException If can not extract downloaded file to path * @return PromiseInterface|null */ abstract protected function extract(PackageInterface $package, $file, $path); }