From e9d2d21ab240f561ebaed2943f1e04cc9cf831c4 Mon Sep 17 00:00:00 2001
From: Taiki Endo <te316e89@gmail.com>
Date: Sun, 19 Mar 2023 16:37:09 +0900
Subject: [PATCH] Improve error message on invalid tag ref

---
 CHANGELOG.md | 2 ++
 main.sh      | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a2c10b..8b4f528 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Diagnostics improvements.
+
 ## [1.6.2] - 2022-12-24
 
 - Support self-hosted runner that does not set `GITHUB_OUTPUT` environment variable. ([#17](https://github.com/taiki-e/create-gh-release-action/pull/17))
diff --git a/main.sh b/main.sh
index 81573f9..9bf9480 100755
--- a/main.sh
+++ b/main.sh
@@ -40,7 +40,7 @@ if [[ -z "${token}" ]]; then
 fi
 
 if [[ "${ref}" != "refs/tags/"* ]]; then
-    bail "tag ref should start with 'refs/tags/': '${ref}'"
+    bail "tag ref should start with 'refs/tags/': '${ref}'; this action only supports events from tag or release by default; see <https://github.com/taiki-e/create-gh-release-action#supported-events> for more"
 fi
 tag="${ref#refs/tags/}"