dataprof/.github/workflows/fuzz.yml at master · 1932819331hy-debug/dataprof · GitHub

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name: Bounded Fuzzing

on:
  pull_request:
    branches: [master]
    paths:
      - 'fuzz/**'
      - 'crates/**'
      - 'Cargo.*'
      - '.github/workflows/fuzz.yml'
      - '.github/actions/setup-rust/**'
  push:
    branches: [master]
    paths:
      - 'fuzz/**'
      - 'crates/**'
      - 'Cargo.*'
      - '.github/workflows/fuzz.yml'
  schedule:
    - cron: '23 3 * * 1'
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: fuzz-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  corpus:
    name: Stable corpus (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest]
    steps:
      - uses: actions/checkout@v7.0.1
        with:
          persist-credentials: false
      - uses: ./.github/actions/setup-rust
        with:
          cache-prefix: fuzz-stable
      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: fuzz
          prefix-key: fuzz-corpus
      - run: cargo test --manifest-path fuzz/Cargo.toml --locked --test smoke
      - run: cargo fmt --manifest-path fuzz/Cargo.toml -- --check
      - run: cargo clippy --manifest-path fuzz/Cargo.toml --locked --all-targets -- -D warnings

  libfuzzer:
    name: ASan (${{ matrix.target }})
    runs-on: ubuntu-latest
    timeout-minutes: 25
    strategy:
      fail-fast: false
      matrix:
        target: [csv, json, report, parity]
    env:
      FUZZ_TARGET: ${{ matrix.target }}
      EVENT_NAME: ${{ github.event_name }}
      RUSTUP_TOOLCHAIN: nightly-2026-09-01
    steps:
      - uses: actions/checkout@v7.0.1
        with:
          persist-credentials: false
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: nightly-2026-09-01
      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: fuzz
          prefix-key: fuzz-asan-${{ matrix.target }}
      - name: Install pinned cargo-fuzz
        run: cargo install cargo-fuzz --version 0.13.2 --locked
      - name: Fetch locked harness dependencies
        run: cargo fetch --manifest-path fuzz/Cargo.toml --locked
      - name: Replay seeds or run a bounded campaign
        shell: bash
        env:
          CARGO_NET_OFFLINE: 'true'
        run: |
          mkdir -p "fuzz/corpus/$FUZZ_TARGET"
          cp fuzz/seeds/"$FUZZ_TARGET"/* "fuzz/corpus/$FUZZ_TARGET/"
          # PRs and pushes replay a fixed corpus. Scheduled/manual runs mutate
          # it for five minutes per target, retaining all discoveries.
          budget=(-runs=0)
          if [[ "$EVENT_NAME" == schedule || "$EVENT_NAME" == workflow_dispatch ]]; then
            budget=(-max_total_time=300)
          fi
          cargo fuzz run "$FUZZ_TARGET" --features fuzzing -- \
            "${budget[@]}" -max_len=4096 -timeout=10 -rss_limit_mb=1024 -seed=274
          git diff --exit-code -- fuzz/Cargo.lock
      - name: Retain crash inputs and evolved corpus
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: fuzz-${{ matrix.target }}-${{ github.run_id }}
          path: |
            fuzz/artifacts/${{ matrix.target }}/
            fuzz/corpus/${{ matrix.target }}/
          if-no-files-found: ignore
          retention-days: 14