print usage on empty argument list (#14)

An alternative for PR #12 Signed-off-by: Dmitry Shmulevich <[email protected]>
NVIDIA · May 8, 2024 · 0f2d0b6 · 0f2d0b6
1 parent eab45e8
commit 0f2d0b6
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/cmd/knavigator/main.go b/cmd/knavigator/main.go
@@ -39,6 +39,11 @@ func mainInternal() error {
 	klog.InitFlags(nil)
 	flag.Parse()
 
+	if len(taskConfigs) == 0 {
+		flag.Usage()
+		return fmt.Errorf("missing task config")
+	}
+
 	taskconfigs, err := config.NewFromPaths(taskConfigs)
 	if err != nil {
 		return err