import Params

def build(bld):
	env = bld.env_of_name('default')
	bld.add_subdirs(env['WITH_DEFAULT_BACKEND'])

def configure(conf):
	if Params.g_options.default_backend:
		default_backend = Params.g_options.default_backend
	elif conf.sub_config('yum'):
		default_backend = 'yum'
	elif conf.sub_config('apt'):
		default_backend = 'apt'
	elif conf.sub_config('alpm'):
		default_backend = 'alpm'
	elif conf.sub_config('conary'):
		default_backend = 'conary'
	elif conf.sub_config('box'):
		default_backend = 'box'
	elif conf.sub_config('smart'):
		default_backend = 'smart'
	elif conf.sub_config('pisi'):
		default_backend = 'pisi'
	else:
		default_backend = 'dummy'

	conf.env['WITH_DEFAULT_BACKEND'] = default_backend

def set_options(opt):
	opt.add_option('--default-backend', type='string', help="Default backend to use alpm,apt,box,conary,dummy,smart,yum,pisi", dest="default_backend")

	opt.sub_options('apt')