function onRead( error, database ) {
		if ( error ) {
			debug( 'Encountered an error when reading a database file: %s', error.message );
			return done( error );
		}
		debug( 'Successfully read a database file.' );
		db = database;

		debug( 'Attempting to create database entry...' );
		entry();
	}
Callback invoked upon reading a database file.

@private
@param {(Error|null)} error - error object
@param {JSON} database - database contents
@returns {void}