helm-chart.yml

name: Helm chart

on:
  push:
    branches: [ main ]
    paths:
    - 'chart/**'
  pull_request:
    branches: [ main ]
    paths:
    - 'chart/**'

jobs:
  lint:
    name: Run linter
    runs-on: ubuntu-latest

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

      - name: Setup Helm
        uses: azure/setup-helm@v4

      - name: Lint
        run: helm lint chart

  validation:
    name: Validate manifests
    runs-on: ubuntu-latest
    strategy:
      matrix:
        version: ['1.29.8', '1.30.4', '1.31.0']

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

      - name: Setup Helm
        uses: azure/setup-helm@v4

      - name: Install plugin
        run: helm plugin install https://github.com/jtyr/kubeconform-helm
      
      - name: Validate
        run: helm kubeconform --summary -f .github/values.yml chart

  release-chart:
    name: Package and release Helm chart
    if: ${{ github.event_name != 'pull_request' }}
    needs: [lint, validation]
    runs-on: ubuntu-latest
    timeout-minutes: 5

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

      - name: Login to GitHub Packages
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Helm
        uses: azure/setup-helm@v4

      - name: Check version bump
        id: check
        run: |
          version="$(grep 'version:' ./chart/Chart.yaml | tail -n1 | awk '{ print $2 }')"
          ! helm show chart oci://ghcr.io/chialab/helm-charts/print2pdf-go --version ${version} >/dev/null 2>&1 || (echo "Did you forget to bump Chart version?"; exit 1)
          echo "version=${version}" >> "$GITHUB_OUTPUT"

      - name: Package chart
        run: helm package chart

      - name: Publish chart
        run: helm push "print2pdf-go-${{ steps.check.outputs.version }}.tgz" oci://ghcr.io/chialab/helm-charts