fix(cli): support comma and range multi-select input

pkg/cli/prompt.go

@@ -87,9 +87,26 @@ func MultiSelect(label string, options []string) ([]string, error) {
 	}
 
 	var selected []string
-	for _, s := range strings.Fields(input) {
+	normalized := strings.NewReplacer(",", " ").Replace(input)
-		n, err := strconv.Atoi(s)
+	for _, s := range strings.Fields(normalized) {
-		if err != nil || n < 1 || n > len(options) {
+		if strings.Contains(s, "-") {
+			parts := strings.SplitN(s, "-", 2)
+			if len(parts) != 2 {
+				continue
+			}
+			start, startErr := strconv.Atoi(parts[0])
+			end, endErr := strconv.Atoi(parts[1])
+			if startErr != nil || endErr != nil || start < 1 || end > len(options) || start > end {
+				continue
+			}
+			for n := start; n <= end; n++ {
+				selected = append(selected, options[n-1])
+			}
+			continue
+		}
+
+		n, convErr := strconv.Atoi(s)
+		if convErr != nil || n < 1 || n > len(options) {
 			continue
 		}
 		selected = append(selected, options[n-1])

pkg/cli/prompt_test.go

@@ -52,6 +52,15 @@ func TestMultiSelect_Good(t *testing.T) {
 	assert.Equal(t, []string{"a", "c"}, vals)
 }
 
+func TestMultiSelect_Good_CommasAndRanges(t *testing.T) {
+	SetStdin(strings.NewReader("1-2,4\n"))
+	defer SetStdin(nil)
+
+	vals, err := MultiSelect("Pick", []string{"a", "b", "c", "d"})
+	assert.NoError(t, err)
+	assert.Equal(t, []string{"a", "b", "d"}, vals)
+}
+
 func TestConfirm_Good(t *testing.T) {
 	SetStdin(strings.NewReader("y\n"))
 	defer SetStdin(nil)