TrueChartsClone/.github/workflows/charts-lint.yaml

name: "Charts: Lint"

on:
  workflow_call:
    inputs:
      checkoutCommit:
        required: true
        type: string
      chartChangesDetected:
        required: true
        type: string

jobs:
  generate-lint-matrix:
    name: Generate matrix for lint
    runs-on: ubuntu-latest
    outputs:
      matrix1: |
        {
          "chart": ${{ steps.list-changed.outputs.charts1 }}
        }
      matrix2: |
        {
          "chart": ${{ steps.list-changed.outputs.charts2 }}
        }
      detected1: ${{ steps.list-changed.outputs.detected1 }}
      detected2: ${{ steps.list-changed.outputs.detected2 }}
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ inputs.checkoutCommit }}

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.2.1

      - name: Collect changes
        id: list-changed
        if: inputs.chartChangesDetected == 'true'
        run: |
          EXCLUDED=$(yq eval -o=json '.excluded-charts // []' .github/ct-install.yaml)
          CHARTS=$(ct list-changed --config .github/ct-install.yaml)
          CHARTS_JSON=$(echo "${CHARTS}" | jq -R -s -c 'split("\n")[:-1]')
          OUTPUT_JSON=$(echo "{\"excluded\": ${EXCLUDED}, \"all\": ${CHARTS_JSON}}" | jq -c '.all-.excluded')
          OUTPUT_JSON1=$(echo $CHARTS_JSON | jq -r -c '.[:254]')
          OUTPUT_JSON2=$(echo $CHARTS_JSON | jq -r -c '.[254:500]')
          echo ::set-output name=charts1::${OUTPUT_JSON1}
          echo ::set-output name=charts2::${OUTPUT_JSON2}
          if [[ $(echo ${OUTPUT_JSON1} | jq -c '. | length') -gt 0 ]]; then
            echo "::set-output name=detected1::true"
          fi
          if [[ $(echo ${OUTPUT_JSON2} | jq -c '. | length') -gt 0 ]]; then
            echo "::set-output name=detected2::true"
          fi

  lint-charts1:
    needs:
      - generate-lint-matrix
    if: needs.generate-lint-matrix.outputs.detected1 == 'true'
    name: Lint charts Part 1
    strategy:
      matrix: ${{ fromJson(needs.generate-lint-matrix.outputs.matrix1) }}
      fail-fast: false
      max-parallel: 10
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ inputs.checkoutCommit }}

      - name: lint Kubernetes tools
        uses: yokawasa/action-setup-kube-tools@v0.8.0
        with:
          setup-tools: |
            helmv3
          helm: "3.8.0"

      - uses: actions/setup-python@v3
        with:
          python-version: "3.10"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.2.1

      - name: Run chart-testing (lint)
        run: ct lint --config ".github/ct-lint.yaml" --charts "${{ matrix.chart }}"
        
  lint-charts2:
    needs:
      - generate-lint-matrix
    if: needs.generate-lint-matrix.outputs.detected2 == 'true'
    name: Lint charts Part 2
    strategy:
      matrix: ${{ fromJson(needs.generate-lint-matrix.outputs.matrix2) }}
      fail-fast: false
      max-parallel: 5
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          ref: ${{ inputs.checkoutCommit }}

      - name: lint Kubernetes tools
        uses: yokawasa/action-setup-kube-tools@v0.8.0
        with:
          setup-tools: |
            helmv3
          helm: "3.8.0"

      - uses: actions/setup-python@v3
        with:
          python-version: "3.10"

      - name: Set up chart-testing
        uses: helm/chart-testing-action@v2.2.1

      - name: Run chart-testing (lint)
        run: ct lint --config ".github/ct-lint.yaml" --charts "${{ matrix.chart }}"

  # Summarize matrix https://github.community/t/status-check-for-a-matrix-jobs/127354/7
  lint_success:
    needs:
      - generate-lint-matrix
      - lint-charts1
      - lint-charts2
    if: |
      always()
    name: Lint successful
    runs-on: ubuntu-latest
    steps:
      - name: Check lint matrix status
        if: ${{ ( (needs.generate-lint-matrix.outputs.detected1 == 'true') && (needs.lint-charts1.result != 'success') ) && ( (needs.generate-lint-matrix.outputs.detected2 == 'true') && ( (needs.lint-charts2.result != 'success') || ( needs.lint-charts2.result != 'skipped' ) ) ) }}
        run: exit 1