#!/bin/sh

if [ "${NGX_STREAM}" = 1 ] ; then
	unset stream_modules stream_confload
	stream_modules=
	stream_confload="${NGX_STREAM_CONFLOAD:-}"

	## filter out builtin stream modules
	unset i
	for i in ${NGX_STREAM_MODULES:-} ; do
		[ -n "$i" ] || continue

		case "$i" in
		*/* | *\** | *\?* )
			log_always "module '$i' is not legal, skipping"
			continue
		;;
		esac

		if is_builtin_module stream "$i" ; then
			log "$i is builtin module, moving to NGX_STREAM_CONFLOAD"
			stream_confload=$(append_list "${stream_confload}" "$i")
			continue
		fi

		## naive deduplication
		if list_have_item "${stream_modules}" "$i" ; then
			log "$i is already specified"
			continue
		fi

		stream_modules=$(append_list "${stream_modules}" "$i")
	done
	unset i

	set -a
	NGX_STREAM_MODULES="${stream_modules}"
	NGX_STREAM_CONFLOAD=$(sort_dedup_list "${stream_confload}")
	set +a

	unset stream_modules stream_confload
fi