name: Helm

on:
  push:
    branches:
      - master
      - release-*
    paths:
      - 'charts/**'
      - '.github/workflows/helm.yaml'
      - '.github/ci/ct.yaml'
  pull_request:
    paths:
      - 'charts/**'
      - '.github/workflows/helm.yaml'
      - '.github/ci/ct.yaml'

jobs:
  lint-and-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Helm
        uses: azure/setup-helm@v4.2.0
        with:
          version: v3.15.1

      - uses: actions/setup-python@v5.1.1
        with:
          python-version: 3.12

      - uses: actions/setup-go@v5
        with:
          go-version-file: 'go.mod'

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.6.1
        with:
          version: v3.11.0

      - name: Install Helm Unit Test Plugin
        run: |
          helm plugin install https://github.com/helm-unittest/helm-unittest

      - name: Run Helm Unit Tests
        run: |
          helm unittest charts/descheduler --strict -d

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          changed=$(ct list-changed --config=.github/ci/ct.yaml)
          if [[ -n "$changed" ]]; then
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      - name: Run chart-testing (lint)
        run: ct lint --config=.github/ci/ct.yaml --validate-maintainers=false

      # Need a multi node cluster so descheduler runs until evictions
      - name: Create multi node Kind cluster
        run: make kind-multi-node

      # helm-extra-set-args only available after ct 3.6.0
      - name: Run chart-testing (install)
        run: ct install --config=.github/ci/ct.yaml --helm-extra-set-args='--set=kind=Deployment'