## 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@v2.0.1

      - name: List changed charts
        id: list-changed
        run: |
          ## If executed with debug this won't work anymore.
          changed=$(ct --config ./.github/ct.yaml list-changed)
          charts=$(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/ct.yaml --lint-conf ./.github/lintconf.yaml

      - name: Create kind cluster
        uses: helm/kind-action@v1.1.0
        if: steps.list-changed.outputs.changed == 'true'

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