fix: be more helpful on bad args (#1)

joelanford · Apr 21, 2020 · 7ccff33 · 7ccff33
1 parent 106bcff
commit 7ccff33
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/main.go b/main.go
@@ -39,6 +39,12 @@ func newRootCmd() *cobra.Command {
 		if len(args) < 1 || len(args) > 2 {
 			return fmt.Errorf("accepts 1 or 2 args, received %d", len(args))
 		}
+		if args[0] == "" {
+			return fmt.Errorf("oldCommit should not be empty")
+		}
+		if len(args) == 2 && args[1] == "" {
+			return fmt.Errorf("if provided, newCommit should not be empty")
+		}
 		return nil
 	}