vercel__workflow/.github/workflows/event-log-race-repro.yml

name: Event Log Race Repro

on:
  pull_request:
    branches: [main, stable]
    types: [opened, reopened, synchronize, labeled]
  # Every input below is passed straight through to the harness, and a blank one
  # lands on the harness' own default in
  # `packages/core/e2e/event-log-race-repro.test.ts` — which is the only place
  # these numbers are defined. Do not reintroduce `default:` values here: a second
  # copy drifts, and the copy CI uses would stop matching the one a local run gets.
  #
  # The defaults are sized for a per-PR regression check. To soak for a *rate*
  # instead, dispatch with the historical scale: step_storm_attempts 600,
  # hook_storm_attempts 600, attempts 200, concurrency 40, budget_ms 4500000 —
  # and raise `timeout-minutes` below, which is sized for the default scale.
  workflow_dispatch:
    inputs:
      step_storm_attempts:
        description: 'Number of step-storm runs (racing steps vs. watchdog + poke-hook pressure)'
        required: false
      hook_storm_attempts:
        description: 'Number of hook-storm runs (racing hook deliveries vs. watchdog — the production shape)'
        required: false
      attempts:
        description: 'Number of hook-sleep control runs (calibration baseline, ~0.1% historical corruption rate)'
        required: false
      concurrency:
        description: 'Number of concurrent workflow runs'
        required: false
      rounds:
        description: 'Rounds of racing branches per storm run (longer log = more room for a divergence to surface)'
        required: false
      width:
        description: 'Racing branches per round (each one is an independent wake source, so this is the main concurrency dial)'
        required: false
      watchdog_ms:
        description: 'Per-branch watchdog timeout. Branches that time out emit an extra step, which is what shifts the correlation-ID sequence'
        required: false
      step_delay_ms:
        description: 'step-storm: raced step duration. Must straddle watchdog_ms once jitter is applied'
        required: false
      hook_resume_stagger_ms:
        description: 'hook-storm: per-index delay inside a round resume burst. width * this should exceed watchdog_ms'
        required: false
      poke_interval_ms:
        description: 'step-storm: cadence of out-of-band resumes to the never-read poke hook'
        required: false
      run_timeout_ms:
        description: 'Per-run timeout before classifying as stuck'
        required: false
      budget_ms:
        description: 'Wall-clock budget for launching attempts. Must stay far enough below the job timeout to leave room for rendering the summary'
        required: false

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.ref != 'refs/heads/main' && github.ref != 'refs/heads/stable' }}

jobs:
  event-log-race-repro:
    name: Event Log Race Repro
    runs-on: ubuntu-latest
    # Sized for the harness' default scale: its own test timeout is
    # `budget_ms + run_timeout_ms + 60s` (~17 min at the defaults), and the rest is
    # checkout, build, the deployment wait, and rendering the summary. A soak
    # dispatch that raises `budget_ms` has to raise this too, or the runner kills
    # the job before the summary is written.
    timeout-minutes: 25
    if: ${{ github.event_name == 'workflow_dispatch' || contains(github.event.pull_request.labels.*.name, 'event-log-race-repro') }}
    permissions:
      contents: read
      deployments: read
      statuses: read
      id-token: write
      issues: write
      pull-requests: write
    env:
      TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
      TURBO_TEAM: ${{ vars.TURBO_TEAM }}
      WORKFLOW_PUBLIC_MANIFEST: '1'

    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha || github.sha }}

      - name: Setup environment
        uses: ./.github/actions/setup-workflow-dev
        with:
          build-packages: 'false'

      - name: Build CLI
        run: pnpm turbo run build --filter='@workflow/cli'

      - name: Wait for Vercel deployment
        id: waitForDeployment
        uses: vercel/wait-for-deployment-action@0e2b0c5c5cce31f1648108aeec56467187aca037
        with:
          project-slug: example-nextjs-workflow-turbopack
          timeout: 1000
          check-interval: 15
          environment: ${{ github.ref == 'refs/heads/main' && 'production' || 'preview' }}

      - name: Run event log race repro
        id: repro
        continue-on-error: true
        run: pnpm run test:e2e:event-log-race-repro --reporter=default
        env:
          NODE_OPTIONS: "--enable-source-maps"
          DEPLOYMENT_URL: ${{ steps.waitForDeployment.outputs.deployment-url }}
          VERCEL_DEPLOYMENT_ID: ${{ steps.waitForDeployment.outputs.deployment-id }}
          APP_NAME: nextjs-turbopack
          WORKFLOW_VERCEL_ENV: ${{ github.ref == 'refs/heads/main' && 'production' || 'preview' }}
          WORKFLOW_VERCEL_AUTH_TOKEN: ${{ secrets.VERCEL_LABS_TOKEN }}
          WORKFLOW_VERCEL_TEAM: "team_nO2mCG4W8IxPIeKoSsqwAxxB"
          WORKFLOW_VERCEL_PROJECT: "prj_yjkM7UdHliv8bfxZ1sMJQf1pMpdi"
          WORKFLOW_VERCEL_PROJECT_SLUG: example-nextjs-workflow-turbopack
          VERCEL_WORKFLOW_SERVER_URL: ${{ github.ref != 'refs/heads/main' && secrets.VERCEL_WORKFLOW_SERVER_URL || '' }}
          # Deliberately unguarded pass-through: on a `pull_request` event every
          # `inputs.*` is empty, and the harness reads an empty variable as unset
          # and falls back to its own default. See the note on the inputs above.
          EVENT_LOG_RACE_REPRO_STEP_STORM_ATTEMPTS: ${{ inputs.step_storm_attempts }}
          EVENT_LOG_RACE_REPRO_HOOK_STORM_ATTEMPTS: ${{ inputs.hook_storm_attempts }}
          EVENT_LOG_RACE_REPRO_ATTEMPTS: ${{ inputs.attempts }}
          EVENT_LOG_RACE_REPRO_CONCURRENCY: ${{ inputs.concurrency }}
          EVENT_LOG_RACE_REPRO_ROUNDS: ${{ inputs.rounds }}
          EVENT_LOG_RACE_REPRO_WIDTH: ${{ inputs.width }}
          EVENT_LOG_RACE_REPRO_WATCHDOG_MS: ${{ inputs.watchdog_ms }}
          EVENT_LOG_RACE_REPRO_STEP_DELAY_MS: ${{ inputs.step_delay_ms }}
          EVENT_LOG_RACE_REPRO_HOOK_RESUME_STAGGER_MS: ${{ inputs.hook_resume_stagger_ms }}
          EVENT_LOG_RACE_REPRO_POKE_INTERVAL_MS: ${{ inputs.poke_interval_ms }}
          EVENT_LOG_RACE_REPRO_RUN_TIMEOUT_MS: ${{ inputs.run_timeout_ms }}
          EVENT_LOG_RACE_REPRO_BUDGET_MS: ${{ inputs.budget_ms }}

      - name: Fetch previous repro comment
        if: always() && github.event_name == 'pull_request'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh api \
            "repos/${{ github.repository }}/issues/${{ github.event.pull_request.number }}/comments?per_page=100" \
            --jq '[.[] | select(.body | contains("<!-- event-log-race-repro-results -->"))][-1].body // ""' \
            > event-log-race-repro-previous-comment.md

      - name: Render repro summary
        if: always()
        run: |
          previous_comment_args=()
          if [ -f event-log-race-repro-previous-comment.md ]; then
            previous_comment_args=(--previous-comment event-log-race-repro-previous-comment.md)
          fi

          node .github/scripts/render-event-log-race-repro-results.js \
            event-log-race-repro-results.json \
            --run-url "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
            --run-attempt "${{ github.run_attempt }}" \
            --timestamp "$(date -u +'%Y-%m-%dT%H:%M:%SZ')" \
            "${previous_comment_args[@]}" \
            | tee event-log-race-repro-summary.md >> "$GITHUB_STEP_SUMMARY"

      - name: Update PR comment
        if: always() && github.event_name == 'pull_request'
        uses: marocchino/sticky-pull-request-comment@773744901bac0e8cbb5a0dc842800d45e9b2b405 # v2.9.4
        with:
          header: event-log-race-repro-results
          path: event-log-race-repro-summary.md

      - name: Upload repro results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: event-log-race-repro-results
          path: |
            event-log-race-repro-results.json
            event-log-race-repro-summary.md
          retention-days: 7
          if-no-files-found: ignore

      - name: Fail on corrupted, failed, or stuck runs
        if: always()
        run: node .github/scripts/render-event-log-race-repro-results.js event-log-race-repro-results.json --check