From 7ccff335363d1a8b0e66466183d3a0fe54eeeba8 Mon Sep 17 00:00:00 2001
From: Ace Eldeib <alexeldeib@gmail.com>
Date: Tue, 21 Apr 2020 14:25:53 -0700
Subject: [PATCH] fix: be more helpful on bad args (#1)

---
 main.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/main.go b/main.go
index 821e718..03e7d10 100644
--- 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
 	}