rust-tests.yml

name: Rust test partitions

on:
  workflow_call:
    inputs:
      runner:
        type: string
        required: true
      partitions:
        type: string
        default: '[1]'
      artifact:
        type: string
        required: true
      checks:
        type: boolean
        default: false
      clippy:
        type: boolean
        default: true
      nightly:
        type: boolean
        default: false
      probe:
        type: string
        default: none

jobs:
  run:
    timeout-minutes: 60
    if: ${{ inputs.probe != 'skipped' }}
    runs-on: ${{ inputs.runner }}
    strategy:
      fail-fast: false
      matrix:
        partition: ${{ fromJSON(inputs.partitions) }}
    steps:
      - uses: actions/checkout@v7
      # A dispatch-only probe fails the first partition alone, exercising this
      # job and the real stable gates without a deliberately broken Rust test.
      - name: Gate probe
        if: ${{ inputs.probe != 'none' && matrix.partition == 1 }}
        env:
          PROBE: ${{ inputs.probe }}
        run: |
          printf 'Deliberate gate probe: %s\n' "$PROBE"
          exit 1
      - name: Install toolchain
        if: ${{ inputs.probe == 'none' }}
        run: |
          rustup toolchain install
          rustc --version
      - uses: Swatinem/rust-cache@v2
        if: ${{ inputs.probe == 'none' }}
        id: cache
      - name: Tooling checks
        if: ${{ inputs.checks && inputs.probe == 'none' && matrix.partition == 1 }}
        run: |
          python3 -m unittest discover -s scripts -p 'test_*.py'
          curl --proto '=https' --tlsv1.2 -LsSf https://github.com/axodotdev/cargo-dist/releases/download/v0.33.0/cargo-dist-installer.sh | sh
          python3 scripts/generate-release.py --check
          cargo fmt --check
      - name: Clippy
        if: ${{ inputs.clippy && inputs.probe == 'none' && matrix.partition == 1 }}
        run: cargo clippy --all-targets -- -D warnings
      - uses: taiki-e/install-action@v2
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
        with:
          tool: cargo-nextest@0.9.151
      - name: Compile tests
        if: ${{ inputs.probe == 'none' }}
        run: cargo test --no-run
      - name: Test inventory
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
        env:
          PARTITION: ${{ matrix.partition }}/${{ strategy.job-total }}
          REPORT: target/ci-report/${{ inputs.artifact }}-${{ matrix.partition }}
          CACHE_HIT: ${{ steps.cache.outputs.cache-hit }}
        run: |
          python3 scripts/ci-timings.py inventory "$REPORT" --partition "$PARTITION"
          git rev-parse HEAD > "$REPORT/revision.txt"
          printf '%s\n' "$CACHE_HIT" > "$REPORT/cache-hit.txt"
      - name: Nextest execution
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
        env:
          PARTITION: ${{ matrix.partition }}/${{ strategy.job-total }}
        run: cargo nextest run --profile ci --partition "hash:$PARTITION"
      - name: Contributor cargo test execution
        if: ${{ inputs.nightly && inputs.probe == 'none' }}
        run: cargo test
      - name: Summarize timings
        if: ${{ always() && !inputs.nightly && inputs.probe == 'none' }}
        env:
          REPORT: target/ci-report/${{ inputs.artifact }}-${{ matrix.partition }}
        run: |
          if test -f target/nextest/ci/junit.xml; then
            mkdir -p "$REPORT"
            cp target/nextest/ci/junit.xml "$REPORT/junit.xml"
            python3 scripts/ci-timings.py summary "$REPORT" >> "$GITHUB_STEP_SUMMARY"
          fi
      - uses: actions/upload-artifact@v4
        if: ${{ always() && !inputs.nightly && inputs.probe == 'none' }}
        with:
          name: ${{ inputs.artifact }}-${{ matrix.partition }}
          path: target/ci-report/${{ inputs.artifact }}-${{ matrix.partition }}/
          retention-days: 14
          if-no-files-found: error
          overwrite: true

  complete:
    timeout-minutes: 5
    runs-on: ubuntu-24.04
    needs: run
    if: ${{ always() }}
    steps:
      - name: Require every partition
        env:
          RESULT: ${{ needs.run.result }}
        run: test "$RESULT" = success
      - uses: actions/checkout@v7
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
      - uses: actions/download-artifact@v4
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
        with:
          pattern: ${{ inputs.artifact }}-*
          path: reports
      - name: Prove coverage and report balance
        if: ${{ !inputs.nightly && inputs.probe == 'none' }}
        env:
          PARTITIONS: ${{ inputs.partitions }}
        run: |
          count=$(python3 -c 'import json,os; print(len(json.loads(os.environ["PARTITIONS"])))')
          python3 scripts/ci-timings.py verify --count "$count" reports/* >> "$GITHUB_STEP_SUMMARY"