From 2491a493bc5e059aa704eefc5bb08c4ea87fbb18 Mon Sep 17 00:00:00 2001
From: Aam <amadeusz.kryze@pm.me>
Date: Tue, 1 Oct 2024 14:50:30 +0200
Subject: [PATCH] fix(bumper): fix unbound variable on new repo 2 (#32)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Bug Fixes**
- Improved the accuracy and consistency of status messages related to
pull requests and pushes.

- **New Features**
- Introduced a new function for better retrieval of head labels in
status messages.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---
 lib/message.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/message.sh b/lib/message.sh
index 124e971..3b86f52 100644
--- a/lib/message.sh
+++ b/lib/message.sh
@@ -32,8 +32,8 @@ make_push_status() {
   COMPARE=""
   ADDITIONAL_INFO=""
 
-  if [[ -n "${BUMPER_CURRENT_VERSION}" ]]; then
-    COMPARE="**Changes**: [${BUMPER_CURRENT_VERSION}...${BUMPER_NEXT_VERSION}](${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/compare/${BUMPER_CURRENT_VERSION}...${BUMPER_NEXT_VERSION})"
+  if [[ -n "${BUMPER_CURRENT_VERSION:-}" ]]; then
+    COMPARE="**Changes**: [${BUMPER_CURRENT_VERSION:-}...${BUMPER_NEXT_VERSION}](${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/compare/${BUMPER_CURRENT_VERSION:-}...${BUMPER_NEXT_VERSION})"
   fi
 
   if [[ -n "${INPUT_BUMP_SEMVER}" && "${INPUT_BUMP_SEMVER}" == "true" ]]; then