From 2167aeadf902c4c5d400383790307f98ff2853b1 Mon Sep 17 00:00:00 2001
From: Michael Hamann <michael@content-space.de>
Date: Tue, 1 Jan 2013 15:13:13 +0100
Subject: [PATCH] Only write page when it has been changed

---
 helper.php | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/helper.php b/helper.php
index bf8de11..2991172 100644
--- a/helper.php
+++ b/helper.php
@@ -283,13 +283,17 @@ public function execute_rewrites($id, $text = null) {
         if($meta && isset($meta['moves'])) {
             if(is_null($text)) $text = rawWiki($id);
 
+            $old_text = $text;
             $text = $this->rewrite_content($text, $id, $meta['moves']);
+            $changed = ($old_text != $text);
             $file = wikiFN($id, '', false);
-            if(is_writable($file)) {
-                // Wait a seconf if page has just been saved
-                $oldRev = getRevisions($id, -1, 1, 1024); // from changelog
-                if ($oldRev == time()) sleep(1);
-                saveWikiText($id, $text, $this->getLang('pm_linkchange'));
+            if(is_writable($file) || !$changed) {
+                if ($changed) {
+                    // Wait a second if page has just been saved
+                    $oldRev = getRevisions($id, -1, 1, 1024); // from changelog
+                    if ($oldRev == time()) sleep(1);
+                    saveWikiText($id, $text, $this->getLang('pm_linkchange'));
+                }
                 unset($meta['moves']);
                 p_set_metadata($id, array('plugin_pagemove' => $meta), false, true);
             } else { // FIXME: print error here or fail silently?