Rely less on word splitting by using arrays

Arrays are just a better idea for storing multiple strings than relying
on word splitting.  Consequently, several global variables in libs/*
were switched to arrays and any references to said variables modified
to expand to the arrays' elements.

3 files changed, 20 insertions, 12 deletions

diff --git a/libreboot b/libreboot
index ce3735d0..4a3aceb3 100755
--- a/libreboot
+++ b/libreboot
@@ -26,7 +26,7 @@ libreboot_usage() {
 
 	printf '\n%s\n' 'Generic project actions:' >&2
 
-	for action in ${PROJECT_ACTIONS_GENERIC}; do
+	for action in "${PROJECT_ACTIONS_GENERIC[@]}"; do
 		printf '%s\n' "  ${action}" >&2
 	done
 
@@ -46,7 +46,7 @@ libreboot_usage() {
 
 	printf '\n%s\n' 'Generic tool actions:' >&2
 
-	for action in ${TOOL_ACTIONS_GENERIC}; do
+	for action in "${TOOL_ACTIONS_GENERIC[@]}"; do
 		printf '%s\n' "  ${action}" >&2
 	done
 
diff --git a/libs/project b/libs/project
index d2779224..0f30ace3 100755
--- a/libs/project
+++ b/libs/project
@@ -15,9 +15,13 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-PROJECT_ACTIONS_GENERIC="usage download extract update build install release clean"
-PROJECT_ACTIONS_HELPERS="arguments"
-PROJECT_FUNCTIONS=$( for action in $PROJECT_ACTIONS_GENERIC ; do printf '%s\n' "$action" "$action""_check" ; done ; printf '%s\n' "$PROJECT_ACTIONS_HELPERS" )
+PROJECT_ACTIONS_GENERIC=(usage download extract update build install release clean)
+PROJECT_ACTIONS_HELPERS=(arguments)
+PROJECT_ACTIONS_FUNCTIONS=(
+	"${PROJECT_ACTIONS_GENERIC[@]}"
+	"${PROJECT_ACTIONS_GENERIC[@]/%/_check}"
+	"${PROJECT_ACTIONS_HELPERS[@]}"
+)
 
 INSTALL_REGEX="\([^:]*\):\(.*\)"
 
@@ -26,7 +30,7 @@ project_include() {
 
 	local project_path=$( project_path "$project" )
 
-	unset -f $PROJECT_FUNCTIONS
+	unset -f "${PROJECT_ACTIONS_FUNCTIONS[@]}"
 
 	. "$project_path/$project"
 
@@ -562,7 +566,7 @@ project_usage_actions() {
 	printf '\n%s\n' 'Generic actions:'
 
 	(
-		for action in ${PROJECT_ACTIONS_GENERIC}; do
+		for action in "${PROJECT_ACTIONS_GENERIC[@]}"; do
 			if function_check "${action}"; then
 				printf '%s\n' "  ${action}"
 			fi
diff --git a/libs/tool b/libs/tool
index 8d067d94..0f9fb063 100755
--- a/libs/tool
+++ b/libs/tool
@@ -15,16 +15,20 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-TOOL_ACTIONS_GENERIC="usage update execute"
-TOOL_ACTIONS_HELPERS="arguments"
-TOOL_FUNCTIONS=$( for action in $TOOL_ACTIONS_GENERIC ; do printf '%s\n' "$action" "$action""_check" ; done ; printf '%s\n' "$TOOL_ACTIONS_HELPERS" )
+TOOL_ACTIONS_GENERIC=(usage update execute)
+TOOL_ACTIONS_HELPERS=(arguments)
+TOOL_ACTIONS_FUNCTIONS=(
+	"${TOOL_ACTIONS_GENERIC[@]}"
+	"${TOOL_ACTIONS_GENERIC[@]/%/_check}"
+	"${TOOL_ACTIONS_HELPERS[@]}"
+)
 
 tool_include() {
 	local tool=$1
 
 	local tool_path=$( tool_path "$tool" )
 
-	unset -f $TOOL_FUNCTIONS
+	unset -f "${TOOL_ACTIONS_FUNCTIONS[@]}"
 
 	. "$tool_path/$tool"
 
@@ -236,7 +240,7 @@ tool_usage_actions() {
 
 	printf '\n%s\n' 'Generic actions:'
 
-	for action in $TOOL_ACTIONS_GENERIC
+	for action in "${TOOL_ACTIONS_GENERIC[@]}"
 	do
 		if function_check "$action"
 		then