#!/bin/sh

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

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

		if is_builtin_module stream "$i" ; then
			log "$i is builtin module, moving to snippets"
			stream_snippets="${stream_snippets}${stream_snippets:+ }$i"
			continue
		fi

		## naive deduplication
		case " ${stream_modules} " in
		*" $i "* )
			log "$i is already specified"
			continue
		;;
		esac

		stream_modules="${stream_modules}${stream_modules:+ }$i"
	done
	unset i

	stream_snippets=$(sort_dedup_list "${stream_snippets}")

	set -a
	NGX_STREAM_MODULES="${stream_modules}"
	NGX_STREAM_SNIPPETS="${stream_snippets}"
	set +a

	unset stream_modules stream_snippets
fi