1 files changed, 2 insertions, 190 deletions
diff --git a/maintenance/convertLinks.php b/maintenance/convertLinks.php
index 8e3bb51799e4..3511e407d5ce 100644
--- a/maintenance/convertLinks.php
+++ b/maintenance/convertLinks.php
@@ -3,196 +3,8 @@
 # The wiki should be put into read-only mode while this script executes
 
 require_once( "commandLine.inc" );
-# the below should probably be moved into commandLine.inc at some point
-require_once( "../AdminSettings.php" );
+require_once( "convertLinks.inc" );
 
-$numRows = $tuplesAdded = $numBadLinks = $curRowsRead = 0; #counters etc
-$totalTuplesInserted = 0; # total tuples INSERTed into links_temp
+convertLinks();
 
-$reportCurReadProgress = true; #whether or not to give progress reports while reading IDs from cur table
-$curReadReportInterval = 1000; #number of rows between progress reports
-
-$reportLinksConvProgress = true; #whether or not to give progress reports during conversion
-$linksConvInsertInterval = 1000; #number of rows per INSERT
-
-$initialRowOffset = 0;
-#$finalRowOffset = 0; # not used yet; highest row number from links table to process
-
-# Overwrite the old links table with the new one.  If this is set to false,
-# the new table will be left at links_temp.
-$overwriteLinksTable = true;
-
-# Don't create keys, and so allow duplicates in the new links table.
-# This gives a huge speed improvement for very large links tables which are MyISAM. (What about InnoDB?)
-$noKeys = false;
-
-
-$logPerformance = false; # output performance data to a file
-$perfLogFilename = "convLinksPerf.txt";
-#--------------------------------------------------------------------
-
-$res = wfQuery( "SELECT COUNT(*) AS count FROM links", DB_WRITE );
-$row = wfFetchObject($res);
-$numRows = $row->count;
-wfFreeResult( $res );
-
-if ( $numRows == 0 ) {
-	print "No rows to convert. Updating schema...\n";
-	createTempTable();
-} else {
-	$row = wfFetchObject( $res );
-	if ( is_numeric( $row->l_from ) ) {
-		print "Schema already converted\n";
-		exit;
-	}
-	
-	if ( $logPerformance ) { $fh = fopen ( $perfLogFilename, "w" ); }
-	$baseTime = $startTime = getMicroTime();
-	# Create a title -> cur_id map
-	print "Loading IDs from cur table...\n";
-	performanceLog ( "Reading $numRows rows from cur table...\n" );
-	performanceLog ( "rows read vs seconds elapsed:\n" );
-	wfBufferSQLResults( false );
-	$res = wfQuery( "SELECT cur_namespace,cur_title,cur_id FROM cur", DB_WRITE );
-	$ids = array();
-
-	while ( $row = wfFetchObject( $res ) ) {
-		$title = $row->cur_title;
-		if ( $row->cur_namespace ) {
-			$title = $wgLang->getNsText( $row->cur_namespace ) . ":$title";
-		}
-		$ids[$title] = $row->cur_id;
-		$curRowsRead++;
-		if ($reportCurReadProgress) {
-			if (($curRowsRead % $curReadReportInterval) == 0) {
-				performanceLog( $curRowsRead . " " . (getMicroTime() - $baseTime) . "\n" );
-				print "\t$curRowsRead rows of cur table read.\n";	
-			}
-		}
-	}
-	wfFreeResult( $res );
-	wfBufferSQLResults( true );
-	print "Finished loading IDs.\n\n";
-	performanceLog( "Took " . (getMicroTime() - $baseTime) . " seconds to load IDs.\n\n" );
-#--------------------------------------------------------------------
-
-	# Now, step through the links table (in chunks of $linksConvInsertInterval rows),
-	# convert, and write to the new table.
-	createTempTable();
-	performanceLog( "Resetting timer.\n\n" );
-	$baseTime = getMicroTime();
-	print "Processing $numRows rows from links table...\n";
-	performanceLog( "Processing $numRows rows from links table...\n" );
-	performanceLog( "rows inserted vs seconds elapsed:\n" );
-	
-	for ($rowOffset = $initialRowOffset; $rowOffset < $numRows; $rowOffset += $linksConvInsertInterval) {
-		$sqlRead = "SELECT * FROM links LIMIT $linksConvInsertInterval OFFSET $rowOffset";
-		$res = wfQuery($sqlRead, DB_READ);
-		if ( $noKeys ) {
-			$sqlWrite = array("INSERT INTO links_temp(l_from,l_to) VALUES ");
-		} else {
-			$sqlWrite = array("INSERT IGNORE INTO links_temp(l_from,l_to) VALUES ");
-		}
-		
-		$tuplesAdded = 0; # no tuples added to INSERT yet
-		while ( $row = wfFetchObject($res) ) {
-			$fromTitle = $row->l_from; 
-			if ( array_key_exists( $fromTitle, $ids ) ) { # valid title
-				$from = $ids[$fromTitle];
-				$to = $row->l_to;
-				if ( $tuplesAdded != 0 ) {
-					$sqlWrite[] = ",";
-				}
-				$sqlWrite[] = "($from,$to)";
-				$tuplesAdded++;				
-			} else { # invalid title
-				$numBadLinks++;
-			}
-		}
-		wfFreeResult($res);
-		#print "rowOffset: $rowOffset\ttuplesAdded: $tuplesAdded\tnumBadLinks: $numBadLinks\n";
-		if ( $tuplesAdded != 0  ) {
-			if ($reportLinksConvProgress) {
-				print "Inserting $tuplesAdded tuples into links_temp...";
-			}
-			wfQuery( implode("",$sqlWrite) , DB_WRITE );
-			$totalTuplesInserted += $tuplesAdded;
-			if ($reportLinksConvProgress)
-				print " done. Total $totalTuplesInserted tuples inserted.\n";
-				performanceLog( $totalTuplesInserted . " " . (getMicroTime() - $baseTime) . "\n"  );
-		}
-	}
-	print "$totalTuplesInserted valid titles and $numBadLinks invalid titles were processed.\n\n";
-	performanceLog( "$totalTuplesInserted valid titles and $numBadLinks invalid titles were processed.\n" );
-	performanceLog( "Total execution time: " . (getMicroTime() - $startTime) . " seconds.\n" );
-	if ( $logPerformance ) { fclose ( $fh ); }
-}
-#--------------------------------------------------------------------
-
-if ( $overwriteLinksTable ) {
-	$dbConn = Database::newFromParams( $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname );
-	if (!($dbConn->isOpen())) {
-		print "Opening connection to database failed.\n";
-		exit;
-	}
-	# Check for existing links_backup, and delete it if it exists.
-	print "Dropping backup links table if it exists...";
-	$dbConn->query( "DROP TABLE IF EXISTS links_backup", DB_WRITE);
-	print " done.\n";
-	
-	# Swap in the new table, and move old links table to links_backup
-	print "Swapping tables 'links' to 'links_backup'; 'links_temp' to 'links'...";
-	$dbConn->query( "RENAME TABLE links TO links_backup, links_temp TO links", DB_WRITE );
-	print " done.\n\n";
-	
-	$dbConn->close();
-	print "Conversion complete. The old table remains at links_backup;\n";
-	print "delete at your leisure.\n";
-} else {
-	print "Conversion complete.  The converted table is at links_temp;\n";
-	print "the original links table is unchanged.\n";
-}
-
-#--------------------------------------------------------------------
-
-function createTempTable() {
-	global $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname;
-	global $noKeys;
-	$dbConn = Database::newFromParams( $wgDBserver, $wgDBadminuser, $wgDBadminpassword, $wgDBname );
-	
-	if (!($dbConn->isOpen())) {
-		print "Opening connection to database failed.\n";
-		exit;
-	}
-	
-	print "Dropping temporary links table if it exists...";
-	$dbConn->query( "DROP TABLE IF EXISTS links_temp", DB_WRITE);
-	print " done.\n";
-	
-	print "Creating temporary links table...";
-	if ( $noKeys ) {
-		$dbConn->query( "CREATE TABLE links_temp ( " .
-		"l_from int(8) unsigned NOT NULL default '0', " .
-		"l_to int(8) unsigned NOT NULL default '0')", DB_WRITE);
-	} else {
-		$dbConn->query( "CREATE TABLE links_temp ( " .
-		"l_from int(8) unsigned NOT NULL default '0', " .
-		"l_to int(8) unsigned NOT NULL default '0', " .
-		"UNIQUE KEY l_from(l_from,l_to), " .
-		"KEY (l_to))", DB_WRITE);
-	}
-	print " done.\n\n";
-}
-
-function performanceLog( $text ) {
-	global $logPerformance, $fh;
-	if ( $logPerformance ) {
-		fwrite( $fh, $text );
-	}
-}
-
-function getMicroTime() { # return time in seconds, with microsecond accuracy
-	list($usec, $sec) = explode(" ", microtime());
-	return ((float)$usec + (float)$sec);
-}
 ?>