Allow SIGHUP during package build

		''' start the bot loop

		'''

		while True:

			try:

				# reload package list

				self.parse_config()

				next_checks = set()

				# len(next_checks) is 0 when there is no package configured

				timeout = min(next_checks) if len(next_checks) > 0 else DEFAULT_CHECK_INTERVAL

				debug("waiting for %ds" % timeout)

			try:

				sleep(timeout)

			except InterruptedError:

				pass