name: fuzz

on:
  push:
  pull_request:
  schedule:
    - cron: "25 */12 * * *"
  workflow_dispatch:

jobs:
  fuzz:

    runs-on: ubuntu-latest
    container:
      image: "cppalliance/droneubuntu2204:1"

    steps:
    - name: Fetch head
      uses: actions/checkout@v4
      with:
        path: 'head'
    - uses: actions/cache@v4
      id: cache-corpus
      with:
        path: head/fuzzing/corpus.tar
        key: corpus-${{ github.run_id }}
        restore-keys: corpus-
    - name: Install packages
      shell: bash
      run: |
          set -e

          function add_repository {
            for i in {1..3}; do
              sudo -E apt-add-repository -y "$1" && return 0 || sleep 10;
            done
            return 1
          }

          curl -sSL --retry 5 https://apt.llvm.org/llvm-snapshot.gpg.key | \
            sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/llvm-snapshot.gpg
          add_repository "deb http://apt.llvm.org/jammy/ llvm-toolchain-jammy-18 main"

          sudo -E apt-get -o Acquire::Retries=3 update
          sudo -E DEBIAN_FRONTEND=noninteractive \
            apt-get -o Acquire::Retries=3 -y --no-install-suggests \
              --no-install-recommends install \
              clang-18 \
              libclang-rt-18-dev
          if [ ! -d /usr/lib/llvm-18/lib/clang/18/lib/linux ]; then
              mkdir -p /usr/lib/llvm-18/lib/clang/18/lib/linux
              for f in ls /usr/lib/llvm-18/lib/clang/18/lib/x86_64-pc-linux-gnu/libclang_rt.*.a; do
                ln -sfT "$f" \
                  "/usr/lib/llvm-18/lib/clang/18/lib/linux/$(basename ${f%.*})-x86_64.a"
                ls -al /usr/lib/llvm-18/lib/clang/18/lib/linux/"$(basename ${f%.*})"-x86_64.a
              done
          fi
    - uses: ./head/.github/actions/build
      with:
        buildtype: 'boost'
        path: 'head'
        toolset: clang-18
        cxxstd: 17
        targets: libs/json/fuzzing//run
    - name: Pack the corpus
      working-directory: boost-root/libs/json/fuzzing/cmin
      run: |
        tar cf - * > "$GITHUB_WORKSPACE"/head/fuzzing/corpus.tar
    - name: Archive any crashes as an artifact
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: crashes
        path: |
          boost-root/crash-*
          boost-root/leak-*
          boost-root/timeout-*
        if-no-files-found: ignore