release-chart.yaml

name: Release Helm chart

on:
  push:
    tags:
      - "*-v*"

jobs:
  release:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Install Helm
        uses: azure/setup-helm@v4
        with:
          version: v3.14.0

      - name: Parse tag
        id: parse
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          CHART_NAME=${TAG%%-v*}
          CHART_VERSION=${TAG##*-v}

          echo "chart=$CHART_NAME" >> $GITHUB_OUTPUT
          echo "version=$CHART_VERSION" >> $GITHUB_OUTPUT

      - name: Validate chart directory
        run: |
          if [ ! -d "${{ steps.parse.outputs.chart }}" ]; then
            echo "Chart directory not found"
            exit 1
          fi
      
      - name: Helm lint
        run: |
          helm lint ${{ steps.parse.outputs.chart }}

      - name: Update chart version
        run: |
          sed -i "s/^version:.*/version: ${{ steps.parse.outputs.version }}/" \
            ${{ steps.parse.outputs.chart }}/Chart.yaml

      - name: Helm login to GHCR
        run: |
          echo "${{ secrets.GITHUB_TOKEN }}" | helm registry login ghcr.io \
            --username ${{ github.actor }} \
            --password-stdin

      - name: Package chart
        run: |
          helm package ${{ steps.parse.outputs.chart }}

      - name: Push chart to OCI
        run: |
          helm push \
            ${{ steps.parse.outputs.chart }}-${{ steps.parse.outputs.version }}.tgz \
            oci://ghcr.io/${{ github.repository_owner }}