deleteArchivedFiles.inc

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<?php
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" );
    }
}