vector/.github/workflows/coverage.yml at master · stackabletech/vector · GitHub

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# Coverage
#
# Runs all test suites (unit, component validation, CLI, API, behavior,
# integration) with code coverage instrumentation on a single commit. Results
# are merged into one lcov report and uploaded to Datadog. Also runs on a
# weekly schedule to ensure full baseline coverage is always fresh.
#
# Limitation: integration and E2E coverage only instruments the test runner
# (cargo-nextest), not the separately-launched Vector binary inside compose
# services. Instrumenting the service binary would require building it with
# cargo-llvm-cov and merging its runtime profdata, which is out of scope here.

name: Coverage

on:
  workflow_call:
    inputs:
      ref:
        description: "Git ref to checkout"
        required: false
        type: string

  schedule:
    - cron: "0 2 * * 0" # 2 AM UTC every Sunday
  workflow_dispatch:

permissions:
  contents: read

env:
  CI: true

jobs:
  tests:
    permissions:
      contents: read
      id-token: write
    uses: ./.github/workflows/unit-tests.yml
    with:
      ref: ${{ inputs.ref }}
      default: true
      coverage: true
      cli: true
      vector-api: true

  integration-tests:
    permissions:
      contents: read
      packages: write
      id-token: write
    uses: ./.github/workflows/integration.yml
    with:
      run_all: true
      coverage: true
      ref: ${{ inputs.ref }}
    secrets: inherit

  coverage-upload:
    name: Merge and Upload Coverage
    runs-on: ubuntu-24.04
    needs:
      - tests
      - integration-tests
    if: ${{ !contains(needs.*.result, 'failure') && !contains(needs.*.result, 'cancelled') }}
    permissions:
      contents: read
      id-token: write
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          ref: ${{ inputs.ref }}

      - name: Download all coverage artifacts
        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          pattern: coverage-*
          path: coverage-artifacts
          merge-multiple: false

      - uses: ./.github/actions/setup
        with:
          mold: false
          vdev: false
          datadog-ci: true
          lcov: true

      - name: Merge coverage reports
        run: |
          mapfile -t FILES < <(find coverage-artifacts -name '*.info')
          echo "Merging ${#FILES[@]} coverage file(s)"

          ARGS=()
          for f in "${FILES[@]}"; do
            ARGS+=("--add-tracefile" "$f")
          done
          lcov "${ARGS[@]}" --output-file merged-lcov.info

      - name: Upload merged coverage artifact
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        continue-on-error: true
        with:
          name: archive-merged-lcov-report
          path: merged-lcov.info
          retention-days: 90
          overwrite: true

      - uses: ./.github/actions/dd-token

      - name: Upload to Datadog
        env:
          DD_SITE: datadoghq.com
          DD_ENV: ci
        run: datadog-ci coverage upload merged-lcov.info