version.yaml

name: Bump Version and Generate Docs
on:
  pull_request_review:
    types: [submitted]

jobs:
  changes:
    name: Find Updated Chart
    runs-on: ubuntu-latest
    if: github.event.review.state == 'approved'
    outputs:
      apps: ${{ steps.apps.outputs.apps }}
    steps:
    - uses: tj-actions/changed-files@v45
      id: changed-files
      with:
        dir_names: 'true'
        dir_names_exclude_current_dir: 'true'
        dir_names_max_depth: '2'
        matrix: 'true'
        files: 'charts/**'

    - id: apps
      run: |
        echo "apps=${{ toJson(steps.changed-files.outputs.all_changed_files) }}" | sed -E 's|charts/||g' >> "$GITHUB_OUTPUT"

  docs:
    name: Bump Version and Generate Docs
    runs-on: ubuntu-latest
    needs: changes
    permissions:
      contents: write
    strategy:
      max-parallel: 1
      fail-fast: false
      matrix:
        app: ${{ fromJson(needs.changes.outputs.apps ) }}
    env:
      APP: ${{ matrix.app }}
    steps:
      - uses: gabe565/setup-helm-docs-action@v1

      - name: Checkout
        uses: actions/checkout@v4
        with:
          sparse-checkout: charts
          ref: ${{ github.event.pull_request.head.ref }}

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

      - name: Check if version bump is needed
        id: check_bump
        run: |
          ct lint  --config .github/linters/ct.yaml --source master | grep -q 'chart version not ok. Needs a version bump!'
          needsBump=$?

          if [ $needsBump -eq 0 ]; then
            echo "needsBump=true" >> "$GITHUB_OUTPUT"
          else
              echo "needsBump=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Cache binaries
        id: cache-bin
        if: ${{ steps.check_bump.outputs.needsBump == 'true' }}
        uses: actions/cache@v4
        env:
          cache-name: cache-semver
        with:
          path: bin
          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('bin/semver') }}
          restore-keys: |
            ${{ runner.os }}-build-${{ env.cache-name }}-
            ${{ runner.os }}-build-
            ${{ runner.os }}-

      - name: Setup semver
        if:  ${{ steps.check_bump.outputs.needsBump == 'true' && steps.cache-bin.outputs.cache-hit != 'true' }}
        run: |
          mkdir -p bin
          wget -O bin/semver \
            https://raw.githubusercontent.com/fsaintjacques/semver-tool/3.4.0/src/semver
          chmod +x bin/semver

      - name: Setup PATH
        if: ${{ steps.check_bump.outputs.needsBump == 'true' }}
        run: |
          echo "$GITHUB_WORKSPACE/bin" >> "$GITHUB_PATH"

      - name: Compute version
        if: ${{ steps.check_bump.outputs.needsBump == 'true' }}
        id: get_version
        env:
          PATCH_LABEL: "${{ contains(github.event.pull_request.labels.*.name, 'chart: patch') }}"
          MINOR_LABEL: "${{ contains(github.event.pull_request.labels.*.name, 'chart: minor') }}"
          MAJOR_LABEL: "${{ contains(github.event.pull_request.labels.*.name, 'chart: major') }}"
        run: |
          current_ver=$(cat "charts/${APP}/Chart.yaml" | grep 'version:' | cut -d' ' -f2)

          BUMP_TYPE=''
          if [[ $MAJOR_LABEL == 'true' ]];
          then
            BUMP_TYPE='major'
          elif [[ $MINOR_LABEL == 'true' ]];
          then
            BUMP_TYPE='minor'
          elif [[ $PATCH_LABEL == 'true' ]];
          then
            BUMP_TYPE='patch'
          else
            echo "::error title=Missing Label::Missing the chart versioning label"
            exit -1
          fi

          echo "running ${BUMP_TYPE} version bump"
          new_ver=$(semver bump "${BUMP_TYPE}" "$current_ver")
          echo "last=${current_ver}" >> "$GITHUB_OUTPUT"
          echo "new=${new_ver}" >> "$GITHUB_OUTPUT"

      - name: Update Chart Version
        if: ${{ steps.check_bump.outputs.needsBump == 'true' }}
        shell: bash
        run: |
          sed -i "s/version: ${{ steps.get_version.outputs.last }}/version: ${{ steps.get_version.outputs.new }}/g" "charts/${APP}/Chart.yaml"

      - name: Update Docs
        shell: bash
        run: |
          helm-docs --chart-search-root charts --chart-to-generate charts/${APP}

      - name: Commit Changes
        env:
          message: ${{ steps.check_bump.outputs.needsBump == 'true' && format('to v{0}', steps.get_version.outputs.new) || 'documentation'  }}
        run: |
          git config user.email '<>'
          git config user.name github-actions
          if ! git diff-index --quiet HEAD; then
            git commit -m "chore: update $APP chart $message" --all
            git push origin "HEAD:$GITHUB_HEAD_REF"
          fi