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<?php
/**
* Delete archived (non-current) files from the database
*
* Based on deleteOldRevisions.php by Rob Church.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Maintenance
* @author Aaron Schulz
*/
require_once __DIR__ . '/Maintenance.php';
/**
* Maintenance script to delete archived (non-current) files from the database.
*
* @ingroup Maintenance
*/
class DeleteArchivedFiles extends Maintenance {
public function __construct() {
parent::__construct();
$this->mDescription = "Deletes all archived images.";
$this->addOption( 'delete', 'Perform the deletion' );
$this->addOption( 'force', 'Force deletion of rows from filearchive' );
}
public function execute() {
if ( !$this->hasOption( 'delete' ) ) {
$this->output( "Use --delete to actually confirm this script\n" );
return;
}
# Data should come off the master, wrapped in a transaction
$dbw = $this->getDB( DB_MASTER );
$dbw->begin( __METHOD__ );
$repo = RepoGroup::singleton()->getLocalRepo();
# Get "active" revisions from the filearchive table
$this->output( "Searching for and deleting archived files...\n" );
$res = $dbw->select(
'filearchive',
array( 'fa_id', 'fa_storage_group', 'fa_storage_key', 'fa_sha1' ),
'',
__METHOD__
);
$count = 0;
foreach ( $res as $row ) {
$key = $row->fa_storage_key;
if ( !strlen( $key ) ) {
$this->output( "Entry with ID {$row->fa_id} has empty key, skipping\n" );
continue;
}
$group = $row->fa_storage_group;
$id = $row->fa_id;
$path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
if ( isset( $row->fa_sha1 ) ) {
$sha1 = $row->fa_sha1;
} else {
// old row, populate from key
$sha1 = LocalRepo::getHashFromKey( $key );
}
// Check if the file is used anywhere...
$inuse = $dbw->selectField(
'oldimage',
'1',
array(
'oi_sha1' => $sha1,
$dbw->bitAnd( 'oi_deleted', File::DELETED_FILE ) => File::DELETED_FILE
),
__METHOD__,
array( 'FOR UPDATE' )
);
$needForce = true;
if ( !$repo->fileExists( $path ) ) {
$this->output( "Notice - file '$key' not found in group '$group'\n" );
} elseif ( $inuse ) {
$this->output( "Notice - file '$key' is still in use\n" );
} elseif ( !$repo->quickPurge( $path ) ) {
$this->output( "Unable to remove file $path, skipping\n" );
continue; // don't delete even with --force
} else {
$needForce = false;
}
if ( $needForce ) {
if ( $this->hasOption( 'force' ) ) {
$this->output( "Got --force, deleting DB entry\n" );
} else {
continue;
}
}
$count++;
$dbw->delete( 'filearchive', array( 'fa_id' => $id ), __METHOD__ );
}
$dbw->commit( __METHOD__ );
$this->output( "Done! [$count file(s)]\n" );
}
}
$maintClass = "DeleteArchivedFiles";
require_once RUN_MAINTENANCE_IF_MAIN;
|
