cron-security-fuzz.yml

name: "🧬 Fuzz parsers"
run-name: "${{ github.event_name == 'schedule' && '⏰ ' || '' }}🧬 Fuzz parsers"

on:
  schedule:
    - cron: "0 4 * * 0"
  workflow_dispatch:

concurrency:
  group: fuzz-${{ github.repository }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  fuzz-yaml-bootstrap:
    name: 🧬 Fuzz the bootstrap YAML reader
    runs-on: ubuntu-26.04
    timeout-minutes: 30
    steps:
      - name: ⬇️ Checkout
        uses: actions/checkout@v7.0.0

      - name: 🔧 Set up Python
        uses: actions/setup-python@v6
        with:
          python-version: "3.12"
          cache: pip
          cache-dependency-path: pyproject.toml

      - name: 📦 Install project with the fuzz extra
        env:
          PYTHON: python3
        run: bash scripts/install/python.sh fuzz

      - name: 🧬 Compare load_block against yaml.safe_load
        run: python3 tests/fuzz/_yaml_bootstrap.py -max_total_time=900

      - name: 📤 Upload crash inputs
        if: failure()
        uses: actions/upload-artifact@v7
        with:
          name: fuzz-crashes
          path: crash-*
          retention-days: 30