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<?php
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/*
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* This file is part of Composer.
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*
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* (c) Nils Adermann <naderman@naderman.de>
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* Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Composer\Downloader;
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use Composer\Package\PackageInterface;
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use Composer\Util\Svn as SvnUtil;
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use Composer\Repository\VcsRepository;
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/**
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* @author Ben Bieker <mail@ben-bieker.de>
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* @author Till Klampaeckel <till@php.net>
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*/
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class SvnDownloader extends VcsDownloader
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{
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protected $cacheCredentials = true;
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/**
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* {@inheritDoc}
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*/
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public function doDownload(PackageInterface $package, $path, $url)
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{
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SvnUtil::cleanEnv();
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$ref = $package->getSourceReference();
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$repo = $package->getRepository();
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if ($repo instanceof VcsRepository) {
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$repoConfig = $repo->getRepoConfig();
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if (array_key_exists('svn-cache-credentials', $repoConfig)) {
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$this->cacheCredentials = (bool) $repoConfig['svn-cache-credentials'];
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}
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}
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$this->io->writeError(" Checking out ".$package->getSourceReference());
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$this->execute($url, "svn co", sprintf("%s/%s", $url, $ref), null, $path);
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}
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/**
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* {@inheritDoc}
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*/
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public function doUpdate(PackageInterface $initial, PackageInterface $target, $path, $url)
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{
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SvnUtil::cleanEnv();
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$ref = $target->getSourceReference();
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if (!$this->hasMetadataRepository($path)) {
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throw new \RuntimeException('The .svn directory is missing from '.$path.', see https://getcomposer.org/commit-deps for more information');
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}
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$flags = "";
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if (0 === $this->process->execute('svn --version', $output)) {
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if (preg_match('{(\d+(?:\.\d+)+)}', $output, $match) && version_compare($match[1], '1.7.0', '>=')) {
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$flags .= ' --ignore-ancestry';
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}
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}
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$this->io->writeError(" Checking out " . $ref);
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$this->execute($url, "svn switch" . $flags, sprintf("%s/%s", $url, $ref), $path);
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}
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/**
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* {@inheritDoc}
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*/
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public function getLocalChanges(PackageInterface $package, $path)
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{
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if (!$this->hasMetadataRepository($path)) {
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return null;
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}
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$this->process->execute('svn status --ignore-externals', $output, $path);
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return preg_match('{^ *[^X ] +}m', $output) ? $output : null;
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}
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/**
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* Execute an SVN command and try to fix up the process with credentials
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* if necessary.
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*
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* @param string $baseUrl Base URL of the repository
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* @param string $command SVN command to run
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* @param string $url SVN url
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* @param string $cwd Working directory
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* @param string $path Target for a checkout
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* @throws \RuntimeException
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* @return string
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*/
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protected function execute($baseUrl, $command, $url, $cwd = null, $path = null)
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{
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$util = new SvnUtil($baseUrl, $this->io, $this->config);
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$util->setCacheCredentials($this->cacheCredentials);
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try {
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return $util->execute($command, $url, $cwd, $path, $this->io->isVerbose());
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} catch (\RuntimeException $e) {
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throw new \RuntimeException(
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'Package could not be downloaded, '.$e->getMessage()
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);
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}
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}
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/**
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* {@inheritDoc}
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*/
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protected function cleanChanges(PackageInterface $package, $path, $update)
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{
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if (!$changes = $this->getLocalChanges($package, $path)) {
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return;
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}
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if (!$this->io->isInteractive()) {
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if (true === $this->config->get('discard-changes')) {
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return $this->discardChanges($path);
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}
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return parent::cleanChanges($package, $path, $update);
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}
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$changes = array_map(function ($elem) {
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return ' '.$elem;
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}, preg_split('{\s*\r?\n\s*}', $changes));
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$this->io->writeError(' <error>The package has modified files:</error>');
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$this->io->writeError(array_slice($changes, 0, 10));
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if (count($changes) > 10) {
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$this->io->writeError(' <info>'.count($changes) - 10 . ' more files modified, choose "v" to view the full list</info>');
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}
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while (true) {
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switch ($this->io->ask(' <info>Discard changes [y,n,v,?]?</info> ', '?')) {
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case 'y':
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$this->discardChanges($path);
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break 2;
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case 'n':
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throw new \RuntimeException('Update aborted');
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case 'v':
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$this->io->writeError($changes);
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break;
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case '?':
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default:
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$this->io->writeError(array(
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' y - discard changes and apply the '.($update ? 'update' : 'uninstall'),
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' n - abort the '.($update ? 'update' : 'uninstall').' and let you manually clean things up',
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' v - view modified files',
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' ? - print help',
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));
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break;
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}
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}
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}
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/**
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* {@inheritDoc}
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*/
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protected function getCommitLogs($fromReference, $toReference, $path)
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{
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if (preg_match('{.*@(\d+)$}', $fromReference) && preg_match('{.*@(\d+)$}', $toReference)) {
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// strip paths from references and only keep the actual revision
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$fromRevision = preg_replace('{.*@(\d+)$}', '$1', $fromReference);
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$toRevision = preg_replace('{.*@(\d+)$}', '$1', $toReference);
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$command = sprintf('svn log -r%s:%s --incremental', $fromRevision, $toRevision);
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if (0 !== $this->process->execute($command, $output, $path)) {
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throw new \RuntimeException(
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'Failed to execute ' . $command . "\n\n" . $this->process->getErrorOutput()
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);
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}
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} else {
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$output = "Could not retrieve changes between $fromReference and $toReference due to missing revision information";
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}
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return $output;
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}
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protected function discardChanges($path)
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{
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if (0 !== $this->process->execute('svn revert -R .', $output, $path)) {
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throw new \RuntimeException("Could not reset changes\n\n:".$this->process->getErrorOutput());
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}
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}
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/**
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* {@inheritDoc}
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*/
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protected function hasMetadataRepository($path)
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{
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return is_dir($path.'/.svn');
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}
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}
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