lintcharts.yaml

name: Lint Helm charts

# Only runs when charts have changed

# Lint Helm charts

on:
  pull_request:
    branches:
    - master
    paths:
    - charts/**

jobs:
  # Get the paths for the Helm charts to lint
  get_paths:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0

    - name: Get the paths for Helm charts to lint
      id: set-matrix
      run: |
        # Get paths (in string form)
        stringPaths=$(find -maxdepth 2 -path './charts/*')

        # Check paths (length greater than 0)
        stringPathsLength=$(echo ${#stringPaths})
        if (( stringPathsLength == 0 ));
        then
          echo "No paths to check"
          exit 1
        fi

        # Serialize paths into JSON array
        paths=$(jq -ncR '[inputs]' <<< "$stringPaths")

        # Output serialized paths
        echo "matrix=$paths" >> $GITHUB_OUTPUT
        echo $paths

    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}

  # Lint Helm charts based on paths provided by previous job
  lint:
    name: Test changed-files
    needs: get_paths
    runs-on: ubuntu-latest
    strategy:
      matrix:
        version: ${{ fromJson(needs.get_paths.outputs.matrix) }}
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Get modified files in the ${{ matrix.version }} folder
        id: modified-files
        uses: tj-actions/changed-files@v35
        with:
          files: ${{ matrix.version }}

      - name: Lint Helm charts in the ${{ matrix.version }} folder
        uses: stackrox/kube-linter-action@v1
        if: steps.modified-files.outputs.any_modified == 'true'
        with:
          directory: ${{ matrix.version }}