ci.yaml

# ---------------------------------------------------------
# Title: Continuous Integration
#
# Uses:
#   - https://github.com/helm/chart-testing-action
#   - https://github.com/helm/kind-action
# ---------------------------------------------------------

name: CI

on:
  push:
    branches:
      - main
    paths-ignore:
      - '**/README.md'
  pull_request:
    branches:
      - main
  workflow_dispatch:

concurrency:
  group: "ci"
  cancel-in-progress: true

env:
  CHARTS_DIRECTORIES_ARG: "--chart-dirs charts"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout git repository
        uses: actions/checkout@v3
        with:
          # note: important to have chart-testing work (see https://github.com/helm/chart-testing/issues/186)
          fetch-depth: 0
      - name: Install Helm
        uses: azure/setup-helm@v3
      - name: Install Python
        uses: actions/setup-python@v4
        with:
          python-version: 3.11
      - name: Install chart-testing
        uses: helm/chart-testing-action@v2.3.1
      - name: List changed charts
        id: list-changed
        run: |
          changed=$(ct list-changed ${CHARTS_DIRECTORIES_ARG} --target-branch ${{ github.event.repository.default_branch }})
          charts=$(echo "$changed" | tr '\n' ' ' | xargs)
          if [[ -n "$changed" ]]; then
            echo "changed=true" >> $GITHUB_OUTPUT
            echo "changed_charts=$charts" >> $GITHUB_OUTPUT
          fi
      - name: Lint charts
        run: ct lint $CHARTS_DIRECTORIES_ARG --target-branch ${{ github.event.repository.default_branch }}