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<?php
/**
* Core functions for deleteArchivedFiles.php
*
* 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
*/
/**
* Core functions for deleteArchivedFiles.php
*
* @ingroup Maintenance
*/
class DeleteArchivedFilesImplementation {
public static function doDelete( $output, $force ) {
# Data should come off the master, wrapped in a transaction
$dbw = wfGetDB( DB_MASTER );
$dbw->begin( __METHOD__ );
$tbl_arch = $dbw->tableName( 'filearchive' );
$repo = RepoGroup::singleton()->getLocalRepo();
# Get "active" revisions from the filearchive table
$output->handleOutput( "Searching for and deleting archived files...\n" );
$res = $dbw->query( "SELECT fa_id,fa_storage_group,fa_storage_key,fa_sha1 FROM $tbl_arch" );
$count = 0;
foreach ( $res as $row ) {
$key = $row->fa_storage_key;
if ( !strlen( $key ) ) {
$output->handleOutput( "Entry with ID {$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,
'oi_deleted & ' . File::DELETED_FILE => File::DELETED_FILE
),
__METHOD__,
array( 'FOR UPDATE' )
);
if ( $path && $repo->fileExists( $path ) && !$inuse ) {
if ( $repo->quickPurge( $path ) ) {
$count++;
$dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
} else {
$output->handleOutput( "Unable to remove file $path, skipping\n" );
}
} else {
$output->handleOutput( "Notice - file '$key' not found in group '$group'\n" );
if ( $force ) {
$output->handleOutput( "Got --force, deleting DB entry\n" );
$dbw->query( "DELETE FROM $tbl_arch WHERE fa_id = $id" );
}
}
}
$dbw->commit( __METHOD__ );
$output->handleOutput( "Done! [$count file(s)]\n" );
}
}
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