From dd0ecfd090ba3e7a464badcd30b7bf78945c72e9 Mon Sep 17 00:00:00 2001
From: Jirka Kremser <jiri.kremser@gmail.com>
Date: Wed, 16 Oct 2024 16:28:08 +0200
Subject: [PATCH] Release pipeline for helm chart

Signed-off-by: Jirka Kremser <jiri.kremser@gmail.com>
---
 .github/workflows/release-chart.yaml | 32 +++++++++++++++++++++++++---
 Makefile                             |  2 +-
 helmchart/otel-add-on/Chart.yaml     |  4 ++--
 3 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/release-chart.yaml b/.github/workflows/release-chart.yaml
index 27b28cf..3a9376a 100644
--- a/.github/workflows/release-chart.yaml
+++ b/.github/workflows/release-chart.yaml
@@ -1,15 +1,41 @@
 name: Helm Publish
 
 on:
-  release:
-    types:
-      - published
+  push:
+    branches:
+      - 'main'
+    paths:
+      - 'helmchart/otel-add-on/Chart.yaml'
 permissions:
   contents: read
 
 jobs:
+  check-if-new-version:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.PAT_TOKEN }}
+      - name: yq
+        uses: mikefarah/yq@3.3.0
+      - name: Compare versions
+        run: |
+          latest_version=$(make version)
+          maybe_old_version=$(yq '.version' helmchart/otel-add-on/Chart.yaml)
+          echo "latest_version: ${latest_version}"
+          echo "maybe_old_version: ${maybe_old_version}"
+          if [ "${latest_version}" != "${maybe_old_version}" ]; then
+            echo "modifying Chart.yaml.."
+            yq -i ".version=${latest_version} | .appVersion=${latest_version}" helmchart/otel-add-on/Chart.yaml
+            git add helmchart/otel-add-on/Chart.yaml
+            git commit -s -m "Updating Chart.yaml: ${maybe_old_version} -> ${latest_version}"
+            git push
+          fi
+
   test:
     runs-on: ubuntu-latest
+    needs: [check-if-new-version]
     steps:
       - uses: actions/checkout@v4
         with:
diff --git a/Makefile b/Makefile
index bcb0e4b..cdf034c 100644
--- a/Makefile
+++ b/Makefile
@@ -94,7 +94,7 @@ help: ## Show this help.
 
 .PHONY: version
 version:
-	@echo $(VERSION)
+	@echo $(LATEST_TAG)
 
 ifndef NO_COLOR
 YELLOW=\033[0;33m
diff --git a/helmchart/otel-add-on/Chart.yaml b/helmchart/otel-add-on/Chart.yaml
index e8e98f6..9269073 100644
--- a/helmchart/otel-add-on/Chart.yaml
+++ b/helmchart/otel-add-on/Chart.yaml
@@ -2,8 +2,8 @@ apiVersion: v2
 name: otel-add-on
 description: A Helm chart for otel-add-on
 type: application
-version: 0.0.1
-appVersion: "0.0.1"
+version: v0.0.0-1
+appVersion: v0.0.0-1
 kubeVersion: ">= 1.19.0-0"
 icon: https://raw.githubusercontent.com/kedacore/keda/main/images/keda-logo-500x500-white.png