From b00a32ba3bf9dab19089d19f2b16ad0b07fde42f Mon Sep 17 00:00:00 2001
From: Roan Kattouw <catrope@users.mediawiki.org>
Date: Tue, 2 Aug 2011 14:05:01 +0000
Subject: [PATCH] Add --no-updates flag to importDump.php that allows the user
 to skip updating the links table. On my test dataset (an old (~2 years)
 MediaWiki namespace dump of enwiki) this speeds up the import from 9m35s to
 10s.

---
 includes/Import.php        | 19 ++++++++++++++++++-
 maintenance/importDump.php |  4 ++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/includes/Import.php b/includes/Import.php
index e1fde33c24..7fcdf0564f 100644
--- a/includes/Import.php
+++ b/includes/Import.php
@@ -36,6 +36,7 @@ class WikiImporter {
 	private $mSiteInfoCallback, $mTargetNamespace, $mPageOutCallback;
 	private $mDebug;
 	private $mImportUploads, $mImageBasePath;
+	private $mNoUpdates = false;
 
 	/**
 	 * Creates an ImportXMLReader drawing from the source provided
@@ -90,6 +91,13 @@ class WikiImporter {
 	function setDebug( $debug ) {
 		$this->mDebug = $debug;
 	}
+	
+	/**
+	 * Set 'no updates' mode. In this mode, the link tables will not be updated by the importer
+	 */
+	function setNoUpdates( $noupdates ) {
+		$this->mNoUpdates = $noupdates;
+	}
 
 	/**
 	 * Sets the action to perform as each new page in the stream is reached.
@@ -453,6 +461,7 @@ class WikiImporter {
 		$revision->setTimestamp( $logInfo['timestamp'] );
 		$revision->setParams( $logInfo['params'] );
 		$revision->setTitle( Title::newFromText( $logInfo['logtitle'] ) );
+		$revision->setNoUpdates( $this->mNoUpdates );
 
 		if ( isset( $logInfo['comment'] ) ) {
 			$revision->setComment( $logInfo['comment'] );
@@ -587,6 +596,7 @@ class WikiImporter {
 		if ( isset( $revisionInfo['contributor']['username'] ) ) {
 			$revision->setUserName( $revisionInfo['contributor']['username'] );
 		}
+		$revision->setNoUpdates( $this->mNoUpdates );
 
 		return $this->revisionCallback( $revision );
 	}
@@ -677,6 +687,7 @@ class WikiImporter {
 		if ( isset( $uploadInfo['contributor']['username'] ) ) {
 			$revision->setUserName( $uploadInfo['contributor']['username'] );
 		}
+		$revision->setNoUpdates( $this->mNoUpdates );
 
 		return call_user_func( $this->mUploadCallback, $revision );
 	}
@@ -853,6 +864,7 @@ class WikiRevision {
 	var $sha1base36 = false;
 	var $isTemp = false;
 	var $archiveName = '';
+	private $mNoUpdates = false;
 
 	function setTitle( $title ) {
 		if( is_object( $title ) ) {
@@ -926,6 +938,10 @@ class WikiRevision {
 	function setParams( $params ) {
 		$this->params = $params;
 	}
+	
+	public function setNoUpdates( $noupdates ) {
+		$this->mNoUpdates = $noupdates;
+	}
 
 	/**
 	 * @return Title
@@ -1056,8 +1072,9 @@ class WikiRevision {
 		$revision->insertOn( $dbw );
 		$changed = $article->updateIfNewerOn( $dbw, $revision );
 
-		if ( $changed !== false ) {
+		if ( $changed !== false && !$this->mNoUpdates ) {
 			wfDebug( __METHOD__ . ": running updates\n" );
+			throw new MWException("BROKEN: calling doEditUpdates()");
 			$article->doEditUpdates( $revision, $userObj, array( 'created' => $created, 'oldcountable' => $oldcountable ) );
 		}
 
diff --git a/maintenance/importDump.php b/maintenance/importDump.php
index c160b0368a..2390ba5418 100644
--- a/maintenance/importDump.php
+++ b/maintenance/importDump.php
@@ -63,6 +63,7 @@ TEXT;
 		$this->addOption( 'dry-run', 'Parse dump without actually importing pages' );
 		$this->addOption( 'debug', 'Output extra verbose debug information' );
 		$this->addOption( 'uploads', 'Process file upload data if included (experimental)' );
+		$this->addOption( 'no-updates', 'Disable link table updates. Is faster but leaves the wiki in an inconsistent state' );
 		$this->addOption( 'image-base-path', 'Import files from a specified path', false, true );
 		$this->addArg( 'file', 'Dump file to import [else use stdin]', false );
 	}
@@ -243,6 +244,9 @@ TEXT;
 		if( $this->hasOption( 'debug' ) ) {
 			$importer->setDebug( true );
 		}
+		if ( $this->hasOption( 'no-updates' ) ) {
+			$importer->setNoUpdates( true );
+		}
 		$importer->setPageCallback( array( &$this, 'reportPage' ) );
 		$this->importCallback =  $importer->setRevisionCallback(
 			array( &$this, 'handleRevision' ) );
-- 
2.20.1