From 8df7eb047508d594fafee8c2a62e012ec84529cf Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Sun, 27 Nov 2011 20:07:42 +0100
Subject: [PATCH] Add SvnDriver for the VcsRepository

---
 src/Composer/Repository/Vcs/SvnDriver.php | 184 ++++++++++++++++++++++
 src/Composer/Repository/VcsRepository.php |   1 +
 2 files changed, 185 insertions(+)
 create mode 100644 src/Composer/Repository/Vcs/SvnDriver.php

diff --git a/src/Composer/Repository/Vcs/SvnDriver.php b/src/Composer/Repository/Vcs/SvnDriver.php
new file mode 100644
index 000000000..8b096e358
--- /dev/null
+++ b/src/Composer/Repository/Vcs/SvnDriver.php
@@ -0,0 +1,184 @@
+<?php
+
+namespace Composer\Repository\Vcs;
+
+use Composer\Json\JsonFile;
+
+/**
+ * @author Jordi Boggiano <j.boggiano@seld.be>
+ */
+class SvnDriver implements VcsDriverInterface
+{
+    protected $url;
+    protected $baseUrl;
+    protected $tags;
+    protected $branches;
+    protected $infoCache = array();
+
+    public function __construct($url)
+    {
+        $this->url = $this->baseUrl = rtrim($url, '/');
+        if (($pos = strrpos($url, '/trunk')) !== false) {
+            $this->baseUrl = substr($url, 0, $pos);
+        }
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function initialize()
+    {
+        $this->getBranches();
+        $this->getTags();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getRootIdentifier()
+    {
+        return 'trunk';
+    }
+
+    /**
+     * {@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}
+     */
+    public function getComposerInformation($identifier)
+    {
+        if (!isset($this->infoCache[$identifier])) {
+            preg_match('{^(.+?)(@\d+)?$}', $identifier, $match);
+            if (!empty($match[2])) {
+                $identifier = $match[1];
+                $rev = $match[2];
+            } else {
+                $rev = '';
+            }
+
+            exec(sprintf('svn cat --non-interactive %s', escapeshellarg($this->baseUrl.$identifier.'composer.json'.$rev)), $output);
+            $composer = implode("\n", $output);
+            unset($output);
+
+            if (!$composer) {
+                throw new \UnexpectedValueException('Failed to retrieve composer information for identifier '.$identifier.' in '.$this->getUrl());
+            }
+
+            $composer = JsonFile::parseJson($composer);
+
+            if (!isset($composer['time'])) {
+                exec(sprintf('svn info %s', escapeshellarg($this->baseUrl.$identifier.$rev)), $output);
+                foreach ($output as $line) {
+                    if (preg_match('{^Last Changed Date: ([^(]+)}', $line, $match)) {
+                        $date = new \DateTime($match[1]);
+                        $composer['time'] = $date->format('Y-m-d H:i:s');
+                        break;
+                    }
+                }
+            }
+            $this->infoCache[$identifier] = $composer;
+        }
+
+        return $this->infoCache[$identifier];
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getTags()
+    {
+        if (null === $this->tags) {
+            exec(sprintf('svn ls --non-interactive %s', escapeshellarg($this->baseUrl.'/tags')), $output);
+            $this->tags = array();
+            foreach ($output as $tag) {
+                $this->tags[rtrim($tag, '/')] = '/tags/'.$tag;
+            }
+        }
+
+        return $this->tags;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function getBranches()
+    {
+        if (null === $this->branches) {
+            exec(sprintf('svn ls --verbose --non-interactive %s', escapeshellarg($this->baseUrl.'/')), $output);
+
+            $this->branches = array();
+            foreach ($output as $line) {
+                preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match);
+                if ($match[2] === 'trunk/') {
+                    $this->branches['trunk'] = '/trunk/@'.$match[1];
+                    break;
+                }
+            }
+            unset($output);
+
+            exec(sprintf('svn ls --verbose --non-interactive %s', escapeshellarg($this->baseUrl.'/branches')), $output);
+            foreach ($output as $line) {
+                preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match);
+                if ($match[2] === './') {
+                    continue;
+                }
+                $this->branches[rtrim($match[2], '/')] = '/branches/'.$match[2].'@'.$match[1];
+            }
+        }
+
+        return $this->branches;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public function hasComposerFile($identifier)
+    {
+        try {
+            $this->getComposerInformation($identifier);
+            return true;
+        } catch (\Exception $e) {
+        }
+
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public static function supports($url, $deep = false)
+    {
+        if (preg_match('#(^svn://|//svn\.)#i', $url)) {
+            return true;
+        }
+
+        if (!$deep) {
+            return false;
+        }
+
+        exec(sprintf('svn info --non-interactive %s', escapeshellarg($url)), $output);
+        return preg_match('{^Repository UUID:}m', implode("\n", $output)) >= 1;
+    }
+}
diff --git a/src/Composer/Repository/VcsRepository.php b/src/Composer/Repository/VcsRepository.php
index 71dda1e5f..e17883009 100644
--- a/src/Composer/Repository/VcsRepository.php
+++ b/src/Composer/Repository/VcsRepository.php
@@ -25,6 +25,7 @@ class VcsRepository extends ArrayRepository
             'Composer\Repository\Vcs\GitHubDriver',
             'Composer\Repository\Vcs\GitBitbucketDriver',
             'Composer\Repository\Vcs\GitDriver',
+            'Composer\Repository\Vcs\SvnDriver',
             'Composer\Repository\Vcs\HgBitbucketDriver',
             'Composer\Repository\Vcs\HgDriver',
         );