vshn/k8up

name: ChartRelease

on:
  push:
    tags:
      - "[a-z0-9]+-*" # match tags following the 'chart-name-x.y.z'

jobs:
  # Currently this job with changelog generator only works for the k8up chart...
  # More charts (e.g. forks) may need additional engineering to get the changelog right.
  gh-pages:
    runs-on: ubuntu-latest
    steps:
      - name: Download cr
        uses: giantswarm/install-binary-action@v1.1.0
        with:
          binary: cr
          version: "1.4.0"
          download_url: https://github.com/helm/chart-releaser/releases/download/v${version}/chart-releaser_${version}_linux_amd64.tar.gz
          tarball_binary_path: "${binary}"
          smoke_test: "${binary} version"

      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: '0'

      - name: Determine Go version from go.mod
        run: echo "GO_VERSION=$(go mod edit -json | jq -r .Go)" >> $GITHUB_ENV

      - uses: actions/setup-go@v3
        with:
          go-version: ${{ env.GO_VERSION }}

      - uses: actions/cache@v3
        with:
          path: ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: Configure Git
        run: |
          git config user.name "$GITHUB_ACTOR"
          git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
      - name: Get chart name
        run: echo "CHART_NAME=$(echo ${GITHUB_REF##*/} | grep --perl-regexp --only-matching '^([a-zA-Z0-9-]+)(?![0-9.]+)')" >> $GITHUB_ENV

      - name: Get chart versions
        run: |
          echo "CHART_VERSION=$(yq e '.version' charts/${CHART_NAME}/Chart.yaml)" >> $GITHUB_ENV
          echo "PREVIOUS_CHART_VERSION=$(git tag --sort=taggerdate --list "k8up-*" | tail -n 2 | head -n 1 | rev | cut -d - -f 1 | rev)" >> $GITHUB_ENV
      - name: Prepare changelog config
        run: .github/changelog-charts.sh ${CHART_NAME}

      - name: Generate additional artifacts
        run: make chart-prepare

      - name: Package Helm chart
        run: |
          mkdir -p .cr-index
          cr package charts/${CHART_NAME}
          cr upload
          cr index --push
        env:
          CR_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          CR_OWNER: ${{ github.repository_owner }}
          CR_GIT_REPO: ${{ github.event.repository.name }}

      - name: Build changelog from PRs with labels
        id: build_changelog
        uses: mikepenz/release-changelog-builder-action@v3
        with:
          configuration: ".github/configuration.json"
          ignorePreReleases: true
          outputFile: .github/release-notes.md
          fromTag: ${{ env.CHART_NAME }}-${{ env.PREVIOUS_CHART_VERSION }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # there doesn't seem to be any maintained GitHub actions that allow uploading assets after release has been made.
      - name: Update release
        run: |
          gh release upload ${CHART_NAME}-${CHART_VERSION} k8up-crd.yaml
          gh release edit   ${CHART_NAME}-${CHART_VERSION} --notes-file .github/release-notes.md
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}