## Reference: https://github.com/helm/chart-testing-action
---
name: Linting and Testing
on: pull_request
jobs: 
  chart-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v1

      - name: Set up python
        uses: actions/setup-python@v2
        with:
          python-version: 3.7

      - name: Setup Chart Linting
        id: lint
        uses: helm/chart-testing-action@v2.1.0

      - name: List changed charts
        id: list-changed
        run: |
          ## If executed with debug this won't work anymore.
          changed=$(ct --config ./.github/configs/ct-lint.yaml list-changed)
          charts=$(echo "$changed" | tr '\n' ' ' | xargs)
          if [[ -n "$changed" ]]; then
            echo "::set-output name=changed::true"
            echo "::set-output name=changed_charts::$charts"
          fi
      - name: Run chart-testing (lint)
        run: ct lint --debug --config ./.github/configs/ct-lint.yaml --lint-conf ./.github/configs/lintconf.yaml
      
      - name: Run docs-testing (helm-docs)
        id: helm-docs
        run: |
          ./scripts/helm-docs.sh
          if [[ $(git diff --stat) != '' ]]; then
            echo -e '\033[0;31mDocumentation outdated!\033[0m ❌'
            git diff --color
            exit 1
          else
            echo -e '\033[0;32mDocumentation up to date\033[0m ✔'
          fi

      - name: Create kind cluster
        uses: helm/kind-action@v1.2.0
        if: steps.list-changed.outputs.changed == 'true'
        with:
          config: .github/configs/kind-config.yaml

      - name: Deploy latest ArgoCD CRDs when testing ArgoCD extensions
        if: |
          contains(steps.list-changed.outputs.changed_charts, 'argocd-image-updater')
        run: |
          kubectl apply -f charts/argo-cd/crds

      - name: Skip HPA tests of ArgoCD
        if: contains(steps.list-changed.outputs.changed_charts, 'argo-cd')
        run: |
          ## Metrics API not available in kind cluster
          rm charts/argo-cd/ci/ha-autoscaling-values.yaml

      - name: Create an external redis for ArgoCD externalRedis feature
        if: contains(steps.list-changed.outputs.changed_charts, 'argo-cd')
        run: |
          kubectl create namespace redis
          helm repo add bitnami https://charts.bitnami.com/bitnami
          helm install redis bitnami/redis --wait --namespace redis --set auth.password=argocd --set architecture=standalone

      - name: Run chart-testing (install)
        run: ct install --config ./.github/configs/ct-install.yaml
        if: steps.list-changed.outputs.changed == 'true'