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* Maintenance script to delete unused text records

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* Maintenance script to delete non-current revisions
* Maintenance script to wipe a page and all revisions from the database
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Rob Church 2006-01-25 21:08:29 +00:00
parent 4f17a4ad27
commit 9d84a9819c
7 changed files with 292 additions and 0 deletions
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3
RELEASE-NOTES
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@ -131,6 +131,9 @@ Maintenance:
duplicate rows with the same id field)
* Added --conf option to command line scripts, allowing the user to specify a
different LocalSettings.php.
* Maintenance script to delete unused text records
* Maintenance script to delete non-current revisions
* Maintenance script to wipe a page and all revisions from the database
i18n / Languages:
* Partial support for Basque language (from wikipedia and meta)

60
maintenance/deleteOldRevisions.inc Normal file
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<?php
/**
* Support functions for the deleteOldRevisions script
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
require_once( 'purgeOldText.inc' );
function DeleteOldRevisions( $delete = false ) {
# Data should come off the master, wrapped in a transaction
$dbw =& wfGetDB( DB_MASTER );
$dbw->begin();
$tbl_pag = $dbw->tableName( 'page' );
$tbl_rev = $dbw->tableName( 'revision' );
# Get "active" revisions from the page table
echo( "Searching for active revisions..." );
$res = $dbw->query( "SELECT page_latest FROM $tbl_pag" );
while( $row = $dbw->fetchObject( $res ) ) {
$cur[] = $row->page_latest;
}
echo( "done.\n" );
# Get all revisions that aren't in this set
echo( "Searching for inactive revisions..." );
$set = implode( ', ', $cur );
$res = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_id NOT IN ( $set )" );
while( $row = $dbw->fetchObject( $res ) ) {
$old[] = $row->rev_id;
}
echo( "done.\n" );
# Inform the user of what we're going to do
$count = count( $old );
echo( "$count old revisions found.\n" );
# Delete as appropriate
if( $delete && $count ) {
echo( "Deleting..." );
$set = implode( ', ', $old );
$dbw->query( "DELETE FROM $tbl_rev WHERE rev_id IN ( $set )" );
echo( "done.\n" );
}
# This bit's done
# Purge redundant text records
$dbw->commit();
if( $delete ) {
PurgeRedundantText( true );
}
}
?>

30
maintenance/deleteOldRevisions.php Normal file
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@ -0,0 +1,30 @@
<?php
/**
* Delete old (non-current) revisions from the database
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
$options = array( 'delete', 'help' );
require_once( 'commandLine.inc' );
require_once( 'deleteOldRevisions.inc' );
echo( "Delete Old Revisions\n\n" );
if( @$options['help'] ) {
ShowUsage();
} else {
DeleteOldRevisions( @$options['delete'] );
}
function ShowUsage() {
echo( "Deletes non-current revisions from the database.\n\n" );
echo( "Usage: php deleteOldRevisions.php [--delete|--help]\n\n" );
echo( "delete : Performs the deletion\n" );
echo( " help : Show this usage information\n" );
}
?>

76
maintenance/nukePage.inc Normal file
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@ -0,0 +1,76 @@
<?php
/**
* Support functions for the nukeArticle script
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
require_once( 'purgeOldText.inc' );
function NukePage( $name, $delete = false ) {
$dbw =& wfGetDB( DB_MASTER );
$dbw->begin();
$tbl_pag = $dbw->tableName( 'page' );
$tbl_rev = $dbw->tableName( 'revision' );
# Get page ID
echo( "Searching for \"$name\"..." );
$title = Title::newFromText( $name );
if( $title ) {
$id = $title->getArticleID();
$real = $title->getPrefixedText();
echo( "found \"$real\" with ID $id.\n" );
# Get corresponding revisions
echo( "Searching for revisions..." );
$res = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_page = $id" );
while( $row = $dbw->fetchObject( $res ) ) {
$revs[] = $row->rev_id;
}
$count = count( $revs );
echo( "found $count.\n" );
# Delete the page itself
if( $delete ) {
echo( "Deleting page record..." );
$dbw->query( "DELETE FROM $tbl_pag WHERE page_id = $id" );
echo( "done.\n" );
}
$dbw->commit();
# Delete revisions as appropriate
if( $delete && $count ) {
echo( "Deleting revisions..." );
DeleteRevisions( $revs );
echo( "done.\n" );
PurgeRedundantText( true );
}
} else {
echo( "not found in database.\n" );
$dbw->commit();
}
}
function DeleteRevisions( $ids ) {
$dbw =& wfGetDB( DB_MASTER );
$dbw->begin();
$tbl_rev = $dbw->tableName( 'revision' );
$set = implode( ', ', $ids );
$dbw->query( "DELETE FROM $tbl_rev WHERE rev_id IN ( $set )" );
$dbw->commit();
}
?>

30
maintenance/nukePage.php Normal file
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<?php
/**
* Erase a page record from the database
* Irreversible (can't use standard undelete) and does not update link tables
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
require_once( 'commandLine.inc' );
require_once( 'nukePage.inc' );
echo( "Erase Page Record\n\n" );
if( isset( $args[0] ) ) {
NukePage( $args[0], true );
} else {
ShowUsage();
}
/** Show script usage information */
function ShowUsage() {
echo( "Remove a page record from the database.\n\n" );
echo( "Usage: php nukePage.php <title>\n\n" );
echo( " <title> : Page title; spaces escaped with underscores\n\n" );
}
?>

63
maintenance/purgeOldText.inc Normal file
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<?php
/**
* Support functions for cleaning up redundant text records
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
function PurgeRedundantText( $delete = false ) {
# Data should come off the master, wrapped in a transaction
$dbw =& wfGetDB( DB_MASTER );
$dbw->begin();
$tbl_arc = $dbw->tableName( 'archive' );
$tbl_rev = $dbw->tableName( 'revision' );
$tbl_txt = $dbw->tableName( 'text' );
# Get "active" text records from the revisions table
echo( "Searching for active text records in revisions table..." );
$res = $dbw->query( "SELECT DISTINCTROW rev_text_id FROM $tbl_rev" );
while( $row = $dbw->fetchObject( $res ) ) {
$cur[] = $row->rev_text_id;
}
echo( "done.\n" );
# Get "active" text records from the archive table
echo( "Searching for active text records in archive table..." );
$res = $dbw->query( "SELECT DISTINCTROW ar_text_id FROM $tbl_arc" );
while( $row = $dbw->fetchObject( $res ) ) {
$cur[] = $row->ar_text_id;
}
echo( "done.\n" );
# Get the IDs of all text records not in these sets
echo( "Searching for inactive text records..." );
$set = implode( ', ', $cur );
$res = $dbw->query( "SELECT old_id FROM text WHERE old_id NOT IN ( $set )" );
while( $row = $dbw->fetchObject( $res ) ) {
$old[] = $row->old_id;
}
echo( "done.\n" );
# Inform the user of what we're going to do
$count = count( $old );
echo( "$count inactive items found.\n" );
# Delete as appropriate
if( $delete && $count ) {
echo( "Deleting..." );
$set = implode( ', ', $old );
$dbw->query( "DELETE FROM $tbl_txt WHERE old_id IN ( $set )" );
echo( "done.\n" );
}
# Done
$dbw->commit();
}
?>

30
maintenance/purgeOldText.php Normal file
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@ -0,0 +1,30 @@
<?php
/**
* Purge old text records from the database
*
* @package MediaWiki
* @subpackage Maintenance
* @author Rob Church <robchur@gmail.com>
*/
$options = array( 'purge', 'help' );
require_once( 'commandLine.inc' );
require_once( 'purgeOldText.inc' );
echo( "Purge Old Text\n\n" );
if( @$options['help'] ) {
ShowUsage();
} else {
PurgeRedundantText( @$options['purge'] );
}
function ShowUsage() {
echo( "Prunes unused text records from the database.\n\n" );
echo( "Usage: php purgeOldText.php [--purge]\n\n" );
echo( "purge : Performs the deletion\n" );
echo( " help : Show this usage information\n" );
}
?>