name: Lint and Test Chart

on:
  pull_request:
    paths:
      - "charts/external-dns/**"

jobs:
  lint-test:
    if: github.repository == 'kubernetes-sigs/external-dns'
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
    steps:
      - name: Checkout
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
        with:
          fetch-depth: 0

      - name: Install Helm Docs
        uses: action-stars/install-tool-from-github-release@243ac555111a84756285bf7dc55df821a55d32d9 # v0.2.3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          owner: norwoodj
          repository: helm-docs
          arch_amd64: x86_64
          os_linux: Linux
          check_command: helm-docs --version
          version: latest

      - name: Run Helm Docs check
        run: |
          set -euo pipefail
          helm-docs
          if [[ -n "$(git status --porcelain --untracked-files=no)" ]]
          then
            echo "Documentation not up to date. Please run helm-docs and commit changes!" >&2
            exit 1
          fi

      - name: Install Artifact Hub CLI
        uses: action-stars/install-tool-from-github-release@243ac555111a84756285bf7dc55df821a55d32d9 # v0.2.3
        with:
          github_token: ${{ github.token }}
          owner: artifacthub
          repository: hub
          name: ah
          check_command: ah version
          version: latest

      - name: Run Artifact Hub lint
        run: ah lint --kind helm || exit 1

      - name: Install Helm
        uses: azure/setup-helm@fe7b79cd5ee1e45176fcad797de68ecaf3ca4814 # v4.2.0
        with:
          token: ${{ github.token }}
          version: latest

      - name: Install Python
        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
        with:
          token: ${{ github.token }}
          python-version: "3.x"

      - name: Set-up chart-testing
        uses: helm/chart-testing-action@e6669bcd63d7cb57cb4380c33043eebe5d111992 # v2.6.1

      - name: Check for changes
        id: changes
        run: |
          changed=$(ct list-changed)
          if [[ -n "$changed" ]]; then
            echo "changed=true" >> "${GITHUB_OUTPUT}"
          fi

      - name: Run chart-testing lint
        run: ct lint --check-version-increment=false

      - name: Create Kind cluster
        if: steps.changes.outputs.changed == 'true'
        uses: helm/kind-action@0025e74a8c7512023d06dc019c617aa3cf561fde # v1.10.0
        with:
          wait: 120s

      - name: Run chart-testing install
        if: steps.changes.outputs.changed == 'true'
        run: ct install