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<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\Repository\Vcs;
use Composer\Cache;
use Composer\Config;
use Composer\Json\JsonFile;
use Composer\Util\ProcessExecutor;
use Composer\Util\Filesystem;
use Composer\Util\Svn as SvnUtil;
use Composer\IO\IOInterface;
use Composer\Downloader\TransportException;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
* @author Till Klampaeckel <till@php.net>
*/
class SvnDriver extends VcsDriver
{
/**
* @var Cache
*/
protected $cache;
protected $baseUrl;
protected $tags;
protected $branches;
protected $rootIdentifier;
protected $infoCache = array();
protected $trunkPath = 'trunk';
protected $branchesPath = 'branches';
protected $tagsPath = 'tags';
protected $packagePath = '';
protected $cacheCredentials = true;
/**
* @var \Composer\Util\Svn
*/
private $util;
/**
* {@inheritDoc}
*/
public function initialize()
{
$this->url = $this->baseUrl = rtrim(self::normalizeUrl($this->url), '/');
SvnUtil::cleanEnv();
if (isset($this->repoConfig['trunk-path'])) {
$this->trunkPath = $this->repoConfig['trunk-path'];
}
if (isset($this->repoConfig['branches-path'])) {
$this->branchesPath = $this->repoConfig['branches-path'];
}
if (isset($this->repoConfig['tags-path'])) {
$this->tagsPath = $this->repoConfig['tags-path'];
}
if (array_key_exists('svn-cache-credentials', $this->repoConfig)) {
$this->cacheCredentials = (bool) $this->repoConfig['svn-cache-credentials'];
}
if (isset($this->repoConfig['package-path'])) {
$this->packagePath = '/' . trim($this->repoConfig['package-path'], '/');
}
if (false !== ($pos = strrpos($this->url, '/' . $this->trunkPath))) {
$this->baseUrl = substr($this->url, 0, $pos);
}
$this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $this->baseUrl));
$this->getBranches();
$this->getTags();
}
/**
* {@inheritDoc}
*/
public function getRootIdentifier()
{
return $this->rootIdentifier ?: $this->trunkPath;
}
/**
* {@inheritDoc}
*/
public function getUrl()
{
return $this->url;
}
/**
* {@inheritDoc}
*/
public function getSource($identifier)
{
return array('type' => 'svn', 'url' => $this->baseUrl, 'reference' => $identifier);
}
/**
* {@inheritDoc}
*/
public function getDist($identifier)
{
return null;
}
/**
* {@inheritdoc}
*/
protected function shouldCache($identifier)
{
return $this->cache && preg_match('{@\d+$}', $identifier);
}
/**
* {@inheritdoc}
*/
public function getComposerInformation($identifier)
{
if (!isset($this->infoCache[$identifier])) {
if ($this->shouldCache($identifier) && $res = $this->cache->read($identifier.'.json')) {
return $this->infoCache[$identifier] = JsonFile::parseJson($res);
}
try {
$composer = $this->getBaseComposerInformation($identifier);
} catch (TransportException $e) {
$message = $e->getMessage();
if (stripos($message, 'path not found') === false && stripos($message, 'svn: warning: W160013') === false) {
throw $e;
}
// remember a not-existent composer.json
$composer = '';
}
if ($this->shouldCache($identifier)) {
$this->cache->write($identifier.'.json', json_encode($composer));
}
$this->infoCache[$identifier] = $composer;
}
return $this->infoCache[$identifier];
}
/**
* @param string $file
* @param string $identifier
*/
public function getFileContent($file, $identifier)
{
$identifier = '/' . trim($identifier, '/') . '/';
preg_match('{^(.+?)(@\d+)?/$}', $identifier, $match);
if (!empty($match[2])) {
$path = $match[1];
$rev = $match[2];
} else {
$path = $identifier;
$rev = '';
}
try {
$resource = $path.$file;
$output = $this->execute('svn cat', $this->baseUrl . $resource . $rev);
if (!trim($output)) {
return null;
}
} catch (\RuntimeException $e) {
throw new TransportException($e->getMessage());
}
return $output;
}
/**
* {@inheritdoc}
*/
public function getChangeDate($identifier)
{
$identifier = '/' . trim($identifier, '/') . '/';
preg_match('{^(.+?)(@\d+)?/$}', $identifier, $match);
if (!empty($match[2])) {
$path = $match[1];
$rev = $match[2];
} else {
$path = $identifier;
$rev = '';
}
$output = $this->execute('svn info', $this->baseUrl . $path . $rev);
foreach ($this->process->splitLines($output) as $line) {
if ($line && preg_match('{^Last Changed Date: ([^(]+)}', $line, $match)) {
return new \DateTime($match[1], new \DateTimeZone('UTC'));
}
}
return null;
}
/**
* {@inheritDoc}
*/
public function getTags()
{
if (null === $this->tags) {
$this->tags = array();
if ($this->tagsPath !== false) {
$output = $this->execute('svn ls --verbose', $this->baseUrl . '/' . $this->tagsPath);
if ($output) {
foreach ($this->process->splitLines($output) as $line) {
$line = trim($line);
if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
if (isset($match[1]) && isset($match[2]) && $match[2] !== './') {
$this->tags[rtrim($match[2], '/')] = $this->buildIdentifier(
'/' . $this->tagsPath . '/' . $match[2],
$match[1]
);
}
}
}
}
}
}
return $this->tags;
}
/**
* {@inheritDoc}
*/
public function getBranches()
{
if (null === $this->branches) {
$this->branches = array();
if (false === $this->trunkPath) {
$trunkParent = $this->baseUrl . '/';
} else {
$trunkParent = $this->baseUrl . '/' . $this->trunkPath;
}
$output = $this->execute('svn ls --verbose', $trunkParent);
if ($output) {
foreach ($this->process->splitLines($output) as $line) {
$line = trim($line);
if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
if (isset($match[1]) && isset($match[2]) && $match[2] === './') {
$this->branches['trunk'] = $this->buildIdentifier(
'/' . $this->trunkPath,
$match[1]
);
$this->rootIdentifier = $this->branches['trunk'];
break;
}
}
}
}
unset($output);
if ($this->branchesPath !== false) {
$output = $this->execute('svn ls --verbose', $this->baseUrl . '/' . $this->branchesPath);
if ($output) {
foreach ($this->process->splitLines(trim($output)) as $line) {
$line = trim($line);
if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
if (isset($match[1]) && isset($match[2]) && $match[2] !== './') {
$this->branches[rtrim($match[2], '/')] = $this->buildIdentifier(
'/' . $this->branchesPath . '/' . $match[2],
$match[1]
);
}
}
}
}
}
}
return $this->branches;
}
/**
* {@inheritDoc}
*/
public static function supports(IOInterface $io, Config $config, $url, $deep = false)
{
$url = self::normalizeUrl($url);
if (preg_match('#(^svn://|^svn\+ssh://|svn\.)#i', $url)) {
return true;
}
// proceed with deep check for local urls since they are fast to process
if (!$deep && !Filesystem::isLocalPath($url)) {
return false;
}
$processExecutor = new ProcessExecutor($io);
$exit = $processExecutor->execute(
"svn info --non-interactive ".ProcessExecutor::escape($url),
$ignoredOutput
);
if ($exit === 0) {
// This is definitely a Subversion repository.
return true;
}
// Subversion client 1.7 and older
if (false !== stripos($processExecutor->getErrorOutput(), 'authorization failed:')) {
// This is likely a remote Subversion repository that requires
// authentication. We will handle actual authentication later.
return true;
}
// Subversion client 1.8 and newer
if (false !== stripos($processExecutor->getErrorOutput(), 'Authentication failed')) {
// This is likely a remote Subversion or newer repository that requires
// authentication. We will handle actual authentication later.
return true;
}
return false;
}
/**
* An absolute path (leading '/') is converted to a file:// url.
*
* @param string $url
*
* @return string
*/
protected static function normalizeUrl($url)
{
$fs = new Filesystem();
if ($fs->isAbsolutePath($url)) {
return 'file://' . strtr($url, '\\', '/');
}
return $url;
}
/**
* Execute an SVN command and try to fix up the process with credentials
* if necessary.
*
* @param string $command The svn command to run.
* @param string $url The SVN URL.
* @throws \RuntimeException
* @return string
*/
protected function execute($command, $url)
{
if (null === $this->util) {
$this->util = new SvnUtil($this->baseUrl, $this->io, $this->config, $this->process);
$this->util->setCacheCredentials($this->cacheCredentials);
}
try {
return $this->util->execute($command, $url);
} catch (\RuntimeException $e) {
if (null === $this->util->binaryVersion()) {
throw new \RuntimeException('Failed to load '.$this->url.', svn was not found, check that it is installed and in your PATH env.' . "\n\n" . $this->process->getErrorOutput());
}
throw new \RuntimeException(
'Repository '.$this->url.' could not be processed, '.$e->getMessage()
);
}
}
/**
* Build the identifier respecting "package-path" config option
*
* @param string $baseDir The path to trunk/branch/tag
* @param int $revision The revision mark to add to identifier
*
* @return string
*/
protected function buildIdentifier($baseDir, $revision)
{
return rtrim($baseDir, '/') . $this->packagePath . '/@' . $revision;
}
}
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