Fixed duplicate arguments in group bug

Author: wcarhart

koi

@@ -446,6 +446,13 @@ function __addgroup {
 		__argsingroup=( "${__argsingroup[@]}" "$__arg" )
 	done
 
+	local __argingroupduplicates
+	__argingroupduplicates=$(printf '%s\n' "${__argsingroup[@]}" | awk '!($0 in seen){seen[$0];c++} END {print c}')
+	if [[ "$__argingroupduplicates" != "${#__argsingroup[@]}" ]] ; then
+		__errortext -c "$koiname: __addgroup err: arguments in group must be unique"
+		return 1
+	fi
+
 	# verify arguments in mutually exclusive group are not dependent on each other
 	local __argingroup __dep __founddependent __founddependency
 	if [[ "$__property" == "XOR" ]] ; then

tests/test_groups/test_groups_invalid.sh

@@ -114,6 +114,14 @@ function test_groups_invalid_shortoptions_only {
 	echo "$flag $glad $pos"
 }
 
+function test_groups_invalid_duplicate_arguments {
+	__addarg "-a" "--aaa" "flag" "optional" "" "help text"
+	__addgroup "wrong" "XOR" "optional" "--aaa" "--aaa"
+	__parseargs "$@"
+
+	echo "$aaa"
+}
+
 # ========= ASSERTIONS ========= #
 function koitest_run {
 	runtest test_groups_invalid_too_few_arguments __error__ "--flag"
@@ -128,4 +136,5 @@ function koitest_run {
 	runtest test_groups_invalid_action_positionalarray __error__ "-f" "arg" "arg"
 	runtest test_groups_invalid_argument_required __error__ "--glad"
 	runtest test_groups_invalid_shortoptions_only __error__ "-f" "-g"
+	runtest test_groups_invalid_duplicate_arguments __error__ "-aaa"
 }