From f7e2163fedd09f3738b40630ff565025fe89fff0 Mon Sep 17 00:00:00 2001
From: woutersioen <wouter.sioen@wijs.be>
Date: Wed, 16 Jul 2014 17:04:23 +0200
Subject: [PATCH] Cleanup releases.

---
 .../Deployment/Strategy/GitRebaseTask.php     | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
index f3ffbde..b0bc000 100644
--- a/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
+++ b/Mage/Task/BuiltIn/Deployment/Strategy/GitRebaseTask.php
@@ -97,6 +97,41 @@ class GitRebaseTask extends BaseStrategyTaskAbstract implements IsReleaseAware
             $result = $this->runCommandRemote($command) && $result;
         }
 
+        // Count Releases
+        if ($this->getConfig()->release('enabled', false) == true) {
+            $releasesDirectory = $this->getConfig()->release('directory', 'releases');
+            $symlink = $this->getConfig()->release('symlink', 'current');
+
+            if (substr($symlink, 0, 1) == '/') {
+                $releasesDirectory = rtrim($this->getConfig()->deployment('to'), '/') . '/' . $releasesDirectory;
+            }
+
+            $maxReleases = $this->getConfig()->release('max', false);
+            if (($maxReleases !== false) && ($maxReleases > 0)) {
+                $releasesList = '';
+                $countReleasesFetch = $this->runCommandRemote('ls -1 ' . $releasesDirectory, $releasesList);
+                $releasesList = trim($releasesList);
+
+                if ($countReleasesFetch && $releasesList != '') {
+                    $releasesList = explode(PHP_EOL, $releasesList);
+                    if (count($releasesList) > $maxReleases) {
+                        $releasesToDelete = array_diff($releasesList, array($this->getConfig()->getReleaseId()));
+                        sort($releasesToDelete);
+                        $releasesToDeleteCount = count($releasesToDelete) - $maxReleases;
+                        $releasesToDelete = array_slice($releasesToDelete, 0, $releasesToDeleteCount + 1);
+
+                        foreach ($releasesToDelete as $releaseIdToDelete) {
+                            $directoryToDelete = $releasesDirectory . '/' . $releaseIdToDelete;
+                            if ($directoryToDelete != '/') {
+                                $command = 'rm -rf ' . $directoryToDelete;
+                                $result = $result && $this->runCommandRemote($command);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
         return $result;
     }
 }