check_helm.yml

name: Check Helm Chart

on:
  pull_request_target:
    branches:
      - master

jobs:
  helm-template:
    name: Run helm template
    runs-on: ubuntu-latest
    permissions:
      contents: read
      pull-requests: read
    steps:
      - uses: hmarr/debug-action@v3.0.0

      - name: Checkout
        uses: actions/checkout@v6

      - name: Run helm template and lint
        env:
          BASE_SHA: ${{ github.event.pull_request.base.sha }}
          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
        run: |
          CHANGED_CHARTS=$(git diff --name-only "${BASE_SHA}" "${HEAD_SHA}" | grep '^charts/' | cut -d/ -f1-2 | sort -u)
          echo "Changed charts:"
          echo "$CHANGED_CHARTS"
          for chart in $CHANGED_CHARTS; do
            echo "Rendering template for $chart"
            helm dependency update "$chart"
            helm template "$chart"
            helm lint "$chart"
          done