]> scripts.mit.edu Git - autoinstallsdev/mediawiki.git/blobdiff - maintenance/backup.inc
MediaWiki 1.17.0
[autoinstallsdev/mediawiki.git] / maintenance / backup.inc
index 30bd0d88f8fc24e7a8f864cbedb9e79475267c97..9ed463c9fc0277299c51fbe84dde44c68d76e1be 100644 (file)
@@ -1,6 +1,8 @@
 <?php
 /**
- * Copyright (C) 2005 Brion Vibber <brion@pobox.com>
+ * Base classes for database dumpers
+ *
+ * Copyright © 2005 Brion Vibber <brion@pobox.com>
  * http://www.mediawiki.org/
  *
  * This program is free software; you can redistribute it and/or modify
@@ -27,7 +29,7 @@
  */
 class DumpDBZip2Output extends DumpPipeOutput {
        function DumpDBZip2Output( $file ) {
-               parent::DumpPipeOutput( "dbzip2", $file );
+               parent::__construct( "dbzip2", $file );
        }
 }
 
@@ -67,16 +69,16 @@ class BackupDumper {
        }
 
        /**
-        * @param string $name
-        * @param string $class name of output filter plugin class
+        * @param $name String
+        * @param $class String: name of output filter plugin class
         */
        function registerOutput( $name, $class ) {
                $this->outputTypes[$name] = $class;
        }
 
        /**
-        * @param string $name
-        * @param string $class name of filter plugin class
+        * @param $name String
+        * @param $class String: name of filter plugin class
         */
        function registerFilter( $name, $class ) {
                $this->filterTypes[$name] = $class;
@@ -84,12 +86,13 @@ class BackupDumper {
 
        /**
         * Load a plugin and register it
-        * @param string $class Name of plugin class; must have a static 'register'
-        *                      method that takes a BackupDumper as a parameter.
-        * @param string $file Full or relative path to the PHP file to load, or empty
+        *
+        * @param $class String: name of plugin class; must have a static 'register'
+        *               method that takes a BackupDumper as a parameter.
+        * @param $file String: full or relative path to the PHP file to load, or empty
         */
        function loadPlugin( $class, $file ) {
-               if( $file != '' ) {
+               if ( $file != '' ) {
                        require_once( $file );
                }
                $register = array( $class, 'register' );
@@ -97,37 +100,36 @@ class BackupDumper {
        }
 
        /**
-        * @param array $args
-        * @return array
-        * @static
+        * @param $args Array
+        * @return Array
         */
        function processArgs( $args ) {
                $sink = null;
                $sinks = array();
-               foreach( $args as $arg ) {
+               foreach ( $args as $arg ) {
                        $matches = array();
-                       if( preg_match( '/^--(.+?)(?:=(.+?)(?::(.+?))?)?$/', $arg, $matches ) ) {
+                       if ( preg_match( '/^--(.+?)(?:=(.+?)(?::(.+?))?)?$/', $arg, $matches ) ) {
                                @list( /* $full */ , $opt, $val, $param ) = $matches;
                                switch( $opt ) {
                                case "plugin":
                                        $this->loadPlugin( $val, $param );
                                        break;
                                case "output":
-                                       if( !is_null( $sink ) ) {
+                                       if ( !is_null( $sink ) ) {
                                                $sinks[] = $sink;
                                        }
-                                       if( !isset( $this->outputTypes[$val] ) ) {
+                                       if ( !isset( $this->outputTypes[$val] ) ) {
                                                wfDie( "Unrecognized output sink type '$val'\n" );
                                        }
                                        $type = $this->outputTypes[$val];
                                        $sink = new $type( $param );
                                        break;
                                case "filter":
-                                       if( is_null( $sink ) ) {
+                                       if ( is_null( $sink ) ) {
                                                $this->progress( "Warning: assuming stdout for filter output\n" );
                                                $sink = new DumpOutput();
                                        }
-                                       if( !isset( $this->filterTypes[$val] ) ) {
+                                       if ( !isset( $this->filterTypes[$val] ) ) {
                                                wfDie( "Unrecognized filter type '$val'\n" );
                                        }
                                        $type = $this->filterTypes[$val];
@@ -145,9 +147,9 @@ class BackupDumper {
                                        $this->server = $val;
                                        break;
                                case "force-normal":
-                                       if( !function_exists( 'utf8_normalize' ) ) {
-                                               dl( "php_utfnormal.so" );
-                                               if( !function_exists( 'utf8_normalize' ) ) {
+                                       if ( !function_exists( 'utf8_normalize' ) ) {
+                                               wfDl( "php_utfnormal.so" );
+                                               if ( !function_exists( 'utf8_normalize' ) ) {
                                                        wfDie( "Failed to load UTF-8 normalization extension. " .
                                                                "Install or remove --force-normal parameter to use slower code.\n" );
                                                }
@@ -159,12 +161,12 @@ class BackupDumper {
                        }
                }
 
-               if( is_null( $sink ) ) {
+               if ( is_null( $sink ) ) {
                        $sink = new DumpOutput();
                }
                $sinks[] = $sink;
 
-               if( count( $sinks ) > 1 ) {
+               if ( count( $sinks ) > 1 ) {
                        return new DumpMultiWriter( $sinks );
                } else {
                        return $sink;
@@ -178,7 +180,7 @@ class BackupDumper {
        function dump( $history, $text = WikiExporter::TEXT ) {
                # Notice messages will foul up your XML output even if they're
                # relatively harmless.
-               if( ini_get( 'display_errors' ) )
+               if ( ini_get( 'display_errors' ) )
                        ini_set( 'display_errors', 'stderr' );
 
                $this->initProgress( $history );
@@ -190,18 +192,18 @@ class BackupDumper {
                $wrapper = new ExportProgressFilter( $this->sink, $this );
                $exporter->setOutputSink( $wrapper );
 
-               if( !$this->skipHeader )
+               if ( !$this->skipHeader )
                        $exporter->openStream();
                # Log item dumps: all or by range
-               if( $history & WikiExporter::LOGS ) {
-                       if( $this->startId || $this->endId ) {
+               if ( $history & WikiExporter::LOGS ) {
+                       if ( $this->startId || $this->endId ) {
                                $exporter->logsByRange( $this->startId, $this->endId );
                        } else {
                                $exporter->allLogs();
                        }
                # Page dumps: all or by page ID range
-               } else if( is_null( $this->pages ) ) {
-                       if( $this->startId || $this->endId ) {
+               } else if ( is_null( $this->pages ) ) {
+                       if ( $this->startId || $this->endId ) {
                                $exporter->pagesByRange( $this->startId, $this->endId );
                        } else {
                                $exporter->allPages();
@@ -211,44 +213,45 @@ class BackupDumper {
                        $exporter->pagesByName( $this->pages );
                }
 
-               if( !$this->skipFooter )
+               if ( !$this->skipFooter )
                        $exporter->closeStream();
 
                $this->report( true );
        }
-       
+
        /**
         * Initialise starting time and maximum revision count.
         * We'll make ETA calculations based an progress, assuming relatively
         * constant per-revision rate.
-        * @param int $history WikiExporter::CURRENT or WikiExporter::FULL
+        * @param $history Integer: WikiExporter::CURRENT or WikiExporter::FULL
         */
        function initProgress( $history = WikiExporter::FULL ) {
-               $table = ($history == WikiExporter::CURRENT) ? 'page' : 'revision';
-               $field = ($history == WikiExporter::CURRENT) ? 'page_id' : 'rev_id';
-               
+               $table = ( $history == WikiExporter::CURRENT ) ? 'page' : 'revision';
+               $field = ( $history == WikiExporter::CURRENT ) ? 'page_id' : 'rev_id';
+
                $dbr = wfGetDB( DB_SLAVE );
-               $this->maxCount = $dbr->selectField( $table, "MAX($field)", '', 'BackupDumper::dump' );
+               $this->maxCount = $dbr->selectField( $table, "MAX($field)", '', __METHOD__ );
                $this->startTime = wfTime();
        }
 
        /**
-        * @fixme the --server parameter is currently not respected, as it doesn't seem
-        * terribly easy to ask the load balancer for a particular connection by name.
+        * @todo Fixme: the --server parameter is currently not respected, as it
+        * doesn't seem terribly easy to ask the load balancer for a particular
+        * connection by name.
         */
        function backupDb() {
                $this->lb = wfGetLBFactory()->newMainLB();
                $db = $this->lb->getConnection( DB_SLAVE, 'backup' );
-               
+
                // Discourage the server from disconnecting us if it takes a long time
                // to read out the big ol' batch query.
                $db->setTimeout( 3600 * 24 );
-               
+
                return $db;
        }
-       
+
        function __destruct() {
-               if( isset( $this->lb ) ) {
+               if ( isset( $this->lb ) ) {
                        $this->lb->closeAll();
                }
        }
@@ -270,16 +273,16 @@ class BackupDumper {
        }
 
        function report( $final = false ) {
-               if( $final xor ( $this->revCount % $this->reportingInterval == 0 ) ) {
+               if ( $final xor ( $this->revCount % $this->reportingInterval == 0 ) ) {
                        $this->showReport();
                }
        }
 
        function showReport() {
-               if( $this->reporting ) {
+               if ( $this->reporting ) {
                        $delta = wfTime() - $this->startTime;
                        $now = wfTimestamp( TS_DB );
-                       if( $delta ) {
+                       if ( $delta ) {
                                $rate = $this->pageCount / $delta;
                                $revrate = $this->revCount / $delta;
                                $portion = $this->revCount / $this->maxCount;
@@ -302,7 +305,7 @@ class BackupDumper {
 
 class ExportProgressFilter extends DumpFilter {
        function ExportProgressFilter( &$sink, &$progress ) {
-               parent::DumpFilter( $sink );
+               parent::__construct( $sink );
                $this->progress = $progress;
        }