1 files changed, 58 insertions, 0 deletions
diff --git a/lib/plugins/importoldindex/action.php b/lib/plugins/importoldindex/action.php
new file mode 100644
index 000000000..26b37664c
--- /dev/null
+++ b/lib/plugins/importoldindex/action.php
@@ -0,0 +1,58 @@
+<?php
+// must be run within Dokuwiki
+if(!defined('DOKU_INC')) die();
+
+if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
+require_once(DOKU_PLUGIN.'action.php');
+
+class action_plugin_importoldindex extends DokuWiki_Action_Plugin {
+
+    function getInfo(){
+        return array(
+            'author' => 'Tom N Harris',
+            'email'  => 'tnharris@whoopdedo.org',
+            'date'   => '2006-11-09',
+            'name'   => 'Import Old Index',
+            'desc'   => 'Moves old index files to a new location, sorted by string length.',
+            'url'    => 'http://whoopdedo.org/doku/wiki'
+            );
+    }
+
+    function register(&$controller) {
+        $controller->register_hook('TEMPORARY_INDEX_UPGRADE_EVENT', 'BEFORE', $this, 'run_import');
+    }
+
+    function run_import(&$event, $args) {
+        global $conf;
+
+        touch($conf['indexdir'].'/index_importing'); // changelog importing lock
+        // load old index
+        $word_idx = file($conf['cachedir'].'/word.idx');
+        $idx = file($conf['cachedir'].'/index.idx');
+        $words = array();
+        for ($lno=0;$lno<count($word_idx);$lno++){
+            $wlen = strlen($word_idx[$lno])-1;
+            //if($wlen<3) continue;
+            if(!isset($words[$wlen])) $words[$wlen] = array();
+            $words[$wlen][] = $lno;
+        }
+
+        foreach (array_keys($words) as $wlen) {
+            $new_words = array();
+            $new_idx = array();
+            foreach ($words[$wlen] as $lno) {
+                $new_words[] = $word_idx[$lno];
+                $new_idx[] = $idx[$lno];
+            }
+            io_saveFile($conf['indexdir']."/w$wlen.idx", implode('', $new_words));
+            io_saveFile($conf['indexdir']."/i$wlen.idx", implode('', $new_idx));
+        }
+
+        @copy($conf['cachedir'].'/page.idx', $conf['indexdir'].'/page.idx');
+        if($conf['fperm']) chmod($conf['indexdir'].'/page.idx', $conf['fperm']);
+        unlink($conf['indexdir'].'/index_importing'); // changelog importing unlock
+        plugin_disable('importoldindex'); // only needs to run once
+    }
+
+}
+