From ca530b2cc6f14cf90a92e434e0dd188e90f2477f Mon Sep 17 00:00:00 2001
From: Tonye Jack <jtonye@ymail.com>
Date: Mon, 17 May 2021 04:39:42 -0400
Subject: [PATCH] Exit with error when HEAD sha is empty (#77)

---
 action.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/action.yml b/action.yml
index 314255d7..8c0851dd 100644
--- a/action.yml
+++ b/action.yml
@@ -73,6 +73,7 @@ runs:
         if [[ -z $HEAD_SHA ]]; then
           echo "::warning::Unable to determine the head sha: $HEAD_SHA."
           echo "::warning::You seem to be missing `fetch-depth: 0` or `fetch-depth: 2`"
+          exit 1
         else
           echo "Using head sha: $HEAD_SHA..."