unified list command for all scripts

e.g. ./build boot roms list
./update blobs inject listboards
./build boot list
./build clean list

also this is now possible:
./build list
or maybe
./update list
^ would list directories in resources/scripts/build
and resources/scripts/update respectively

this script is added:
resources/scripts/build/command/options

call it like so, e.g.
./build command options resources/coreboot

this script is now used, for list functions in
other scripts.

Signed-off-by: Leah Rowe <leah@libreboot.org>

lbmk

@@ -48,6 +48,8 @@ main()
 
 	./.gitcheck || err "/.gitcheck call from main, in /lbmk"
 	[ "${mode}" = "help" ] && usage ${0} && exit 0
+	[ "${mode}" = "list" ] && ./build command options "${buildpath}" && \
+	    exit 0
 	[ $# -lt 2 ] && usage ${0} && exit 1
 
 	if [ "${mode}" = "dependencies" ]; then
@@ -63,10 +65,10 @@ main()
 
 	case "${option}" in
 	list)
-		printf "Options for mode '%s':\n\n" ${mode}
-		listoptions "${mode}" ;;
+		./build command options "${buildpath}/${mode}" ;;
 	all)
-		for option in $(listoptions "${mode}"); do
+		for option in $(./build command options "${buildpath}/${mode}")
+		do
 			"${buildpath}/${mode}/${option}" $@ || \
 			    err "script fail: ${buildpath}/${mode}/${option} $@"
 		done
@@ -99,19 +101,6 @@ install_dependencies()
 	    printf "You must install AUR packages: %s\n" "${aur_notice}" 1>&2
 }
 
-# Takes exactly one mode as parameter
-listoptions()
-{
-	options="n"
-	for option in "${buildpath}/${1}/"*; do
-		[ -f "${option}" ] || continue
-		printf '%s\n' ${option##*/}
-		options="y"
-	done
-	[ "${options}" = "y" ] || \
-	    err "listoptions: No scripts present in directory ${buildpath}/${1}"
-}
-
 usage()
 {
 	progname=${0}
@@ -119,7 +108,7 @@ usage()
 	USAGE:	${progname} <MODE> <OPTION>
 
 	possible values for 'mode':
-	$(listmodes)
+	$(./build command options "${buildpath}/${mode}")
 
 	Example:	${progname} module all
 	Example:	${progname} module flashrom [static]
@@ -130,16 +119,4 @@ usage()
 	EOF
 }
 
-listmodes()
-{
-	modes="n"
-	for mode in "${buildpath}"/*; do
-		[ -d "${mode}" ] || continue
-		printf '%s\n' ${mode##*/}
-		modes="y"
-	done
-	[ "${modes}" = "y" ] || \
-	    err "listmodes: No directories present in directory ${buildpath}"
-}
-
 main $@