name: Helm

on:
  push:
    branches:
      - main
      - release-*
    paths:
      - 'deploy/charts/**'
  pull_request:
    paths:
      - 'deploy/charts/**'
  workflow_dispatch: {}

jobs:
  lint-and-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Generate chart
        run: |
          make helm.generate
      - name: Set up Helm
        uses: azure/setup-helm@v3.5
        with:
          version: v3.4.2

      - uses: actions/setup-python@v4.5.0
        with:
          python-version: 3.7

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.3.1

      - name: Run chart-testing (list-changed)
        id: list-changed
        run: |
          changed=$(ct list-changed --config=.github/ci/ct.yaml)
          if [[ -n "$changed" ]]; then
            echo "::set-output name=changed::true"
          fi
      - name: Install chart unittest
        run: |
          helm env
          helm plugin install https://github.com/helm-unittest/helm-unittest
      - name: Run chart-testing (lint)
        run: ct lint --config=.github/ci/ct.yaml

      - name: Create kind cluster
        uses: helm/kind-action@v1.5.0
        if: steps.list-changed.outputs.changed == 'true'

      - name: Run chart-testing (install)
        run: ct install --config=.github/ci/ct.yaml --charts deploy/charts/external-secrets
        if: steps.list-changed.outputs.changed == 'true'

      - name: Run unitests
        if: steps.list-changed.outputs.changed == 'true'
        run: make helm.test

  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
      - name: Set up Helm
        uses: azure/setup-helm@v3.4
        with:
          version: v3.4.2

      - name: Generate chart
        run: |
          make helm.generate
      - name: Run chart-releaser
        uses: helm/chart-releaser-action@v1.5.0
        if: github.ref == 'refs/heads/main'
        env:
          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
          CR_RELEASE_NAME_TEMPLATE: "helm-chart-{{ .Version }}"
        with:
          charts_dir: deploy/charts
          charts_repo_url: https://charts.external-secrets.io
