name: Luau Benchmarks (CacheGrind)

on:
  pull_request:
    paths-ignore:
      - "docs/**"
      - "papers/**"
      - "rfcs/**"
      - "*.md"
      - "prototyping/**"

jobs:
  benchmarks-run:
    name: Run ${{ matrix.bench.title }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest]
        engine:
          - { channel: stable, version: latest }
        bench:
          - {
              script: "run-benchmarks",
              timeout: 12,
              title: "Luau Benchmarks",
              cachegrindTitle: "Performance",
              cachegrindIterCount: 20,
            }

    runs-on: ${{ matrix.os }}
    steps:
      - uses: actions/checkout@v3

      - name: Build Luau
        run: make config=release luau luau-analyze

      - uses: actions/setup-python@v3
        with:
          python-version: "3.9"
          architecture: "x64"

      - name: Install python dependencies
        run: |
          python -m pip install requests
          python -m pip install --user numpy scipy matplotlib ipython jupyter pandas sympy nose

      - name: Install valgrind
        run: |
          sudo apt-get install valgrind

      - name: Run ${{ matrix.bench.title }} (Cold Cachegrind)
        run: sudo bash ./scripts/run-with-cachegrind.sh python ./bench/bench.py "${{ matrix.bench.cachegrindTitle}}Cold" 1 | tee -a ${{ matrix.bench.script }}-output.txt

      - name: Run ${{ matrix.bench.title }} (Warm Cachegrind)
        run: sudo bash ./scripts/run-with-cachegrind.sh python ./bench/bench.py "${{ matrix.bench.cachegrindTitle }}" ${{ matrix.bench.cachegrindIterCount }} | tee -a ${{ matrix.bench.script }}-output.txt

      - name: Navigate to root dir, create gh-pages dir then navigate into it
        run: cd .. && mkdir gh-pages && cd gh-pages && pwd

      - name: Switch to & checkout gh-pages repo
        uses: actions/checkout@v3
        with:
          repository: AllanJeremy/luau-benchmark-results
          ref: "main"
          path: "./"

      - run: pwd

      - name: Checkout gh-pages
        run: |
          git status
          git fetch --no-tags --depth=1 origin main
          git checkout main
          git pull
          git status

      - name: Navigate back to luau before checking out original repo
        run: cd ..

      #Run `github-action-benchmark` action
      - name: Store ${{ matrix.bench.title }} result
        uses: Roblox/rhysd-github-action-benchmark@v-luau
        with:
          name: ${{ matrix.bench.title }}
          tool: "benchmarkluau"
          # This should come from Luau repo
          output-file-path: ../${{ matrix.bench.script }}-output.txt

          # This should map to thebenchmark results repo
          external-data-json-path: ../gh-pages/dev/bench/data.json
          alert-threshold: 150%
          fail-threshold: 200%
          fail-on-alert: true
          comment-on-alert: true
          comment-always: true
          github-token: ${{ secrets.BENCH_GITHUB_TOKEN }}