From 92e33511bdb2c8cc8d2132f3e113e4ed032a116c Mon Sep 17 00:00:00 2001
From: Ivan Polchenko <2119240+i5okie@users.noreply.github.com>
Date: Mon, 25 Sep 2023 11:13:34 -0700
Subject: [PATCH] Update lookup_latest_tag function to lookup previous tag

Signed-off-by: Ivan Polchenko <2119240+i5okie@users.noreply.github.com>
---
 .github/actions/chart_releaser/cr.sh | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/.github/actions/chart_releaser/cr.sh b/.github/actions/chart_releaser/cr.sh
index a8cb24b1..01d31db2 100644
--- a/.github/actions/chart_releaser/cr.sh
+++ b/.github/actions/chart_releaser/cr.sh
@@ -248,28 +248,16 @@ install_chart_releaser() {
 
 lookup_latest_tag() {
   git fetch --tags >/dev/null 2>&1
+  latest_tag=$(git tag --sort=-creatordate | sed -n '2p')
 
-  if git symbolic-ref --short -q HEAD; then
-    if ! git describe --tags --abbrev=0 HEAD~ 2>/dev/null; then
-      git rev-list --max-parents=0 --first-parent HEAD
-    fi
+  if [ -z "$latest_tag" ]; then
+    # If no tags are found, return the initial commit hash
+    git rev-list --max-parents=0 --first-parent HEAD
   else
-    # In a detached HEAD state, such as when the pipeline
-    # is triggered by a push on a tag commit, we need to look back
-    # by date
-    current_commit=$(git rev-parse HEAD)
-    for tag in $(git tag --sort=-creatordate); do
-      if [ $(git rev-parse "$tag") = "$current_commit" ]; then
-        continue
-      else
-        echo "$tag"
-        break
-      fi
-    done
+    echo "$latest_tag"
   fi
 }
 
-
 filter_charts() {
   while read -r chart; do
     [[ ! -d "$chart" ]] && continue