From 53d6ccfe6aabe82c94115350d2f791f2e09d60d6 Mon Sep 17 00:00:00 2001
From: andi <andi@splitbrain.org>
Date: Sun, 20 Mar 2005 19:21:50 +0100
Subject: remove empty namespaces on page deletion

darcs-hash:20050320182150-9977f-34610c4d2cd518c1de891e098859e1aaa74355a8.gz
---
 inc/common.php |  4 +++-
 inc/io.php     | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

(limited to 'inc')

diff --git a/inc/common.php b/inc/common.php
index 482bb1e2d..47defb8af 100644
--- a/inc/common.php
+++ b/inc/common.php
@@ -487,7 +487,7 @@ function parsedWiki($id,$rev='',$excuse=true){
   //ensure $id is in global $ID (needed for parsing)
   global $ID;
   $ID = $id;
-  
+
   if($rev){
     if(@file_exists($file)){
       $ret = parse(io_readFile($file));
@@ -689,6 +689,8 @@ function saveWikiText($id,$text,$summary){
     $del = true;
     //autoset summary on deletion
     if(empty($summary)) $summary = $lang['deleted'];
+    //remove empty namespaces
+    io_sweepNS($id);
   }else{
     // save file (datadir is created in io_saveFile)
     io_saveFile($file,$text);
diff --git a/inc/io.php b/inc/io.php
index d59efbc78..ceb747ed9 100644
--- a/inc/io.php
+++ b/inc/io.php
@@ -56,6 +56,25 @@ function io_cacheParse($file){
   return $parsed;
 }
 
+/**
+ * Removes empty directories
+ *
+ * @todo use safemode hack
+ * @author  Andreas Gohr <andi@splitbrain.org>
+ */
+function io_sweepNS($id){
+  global $conf;
+
+  //scan all namespaces
+  while(($id = getNS($id)) !== false){
+		$dir = $conf['datadir'].'/'.str_replace(':','/',$id);
+    $dir = utf8_encodeFN($dir);
+
+    //try to delete dir else return
+    if(!@rmdir($dir)) return;
+  }
+}
+
 /**
  * Returns content of $file as cleaned string.
  *
-- 
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