---
name: helm-ci
on:
  pull_request:
    paths:
      - "charts/meta-monitoring/**"

env:
  CT_CONFIGFILE: charts/meta-monitoring/ct.yaml

jobs:
  call-lint:
    name: Lint Helm Chart
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3

      - name: Lint Yaml
        run: make helm-lint

  call-test:
    name: Test Helm Chart
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v3
        with:
          version: v3.8.2

      # Python is required because `ct lint` runs Yamale (https://github.com/23andMe/Yamale) and
      # yamllint (https://github.com/adrienverge/yamllint) which require Python
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: 3.7

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.4.0

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          changed=$(ct list-changed --config "${CT_CONFIGFILE}")
          if [[ -n "$changed" ]]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          fi
      - name: Run chart-testing (lint)
        run: ct lint --config "${CT_CONFIGFILE}" --check-version-increment=false

      - name: Create kind cluster
        uses: helm/kind-action@v1.8.0
        if: steps.list-changed.outputs.changed == 'true'
        with:
          config: tools/kind.config

      - name: Run chart-testing (install)
        run: |
          changed=$(ct list-changed --config "${CT_CONFIGFILE}")
          ct install --config "${CT_CONFIGFILE}"