linter.yml

---
name: Lint

on:
  pull_request:
    paths:
      - 'charts/**'
  push:
    branches:
      - main
    paths:
      - 'charts/**'
  workflow_dispatch:

jobs:
  lint:
    name: Lint Helm charts
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout repo
        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29 # v4.1.6
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: Azure/setup-helm@5119fcb9089d432beecbf79bb2c7915207344b78 # v3.5
        with:
          version: 'v3.13.1'

      - name: Set up Python
        uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d # v5.1.0
        with:
          python-version: '3.12'
          check-latest: true

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

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          CHANGED=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
          if [[ -n "$CHANGED" ]]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      - name: Run chart-testing (lint)
        if: steps.list-changed.outputs.changed == 'true'
        env:
          CT_CHECK_VERSION_INCREMENT: false
        run: ct lint --target-branch ${{ github.event.repository.default_branch }}