benchmarks.yml

name: Benchmarking

on:
  push:
    branches: [ "main" ]
    paths:
      - 'include/**'
      - 'benchmark/**'
      - 'ci/benchmarking/**'
      - '.github/workflows/benchmarks.yml'
  pull_request:
    branches: [ "main" ]
    paths:
      - 'include/**'
      - 'benchmark/**'
      - 'ci/benchmarking/**'
      - '.github/workflows/benchmarks.yml'

jobs:
  Measure:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install packages
        run: sudo apt-get -qq install libbenchmark-dev libgmp3-dev libcrypto++-dev libcrypto++-doc libcrypto++-utils

      - name: Set reusable strings
        id: strings
        shell: bash
        run: |
          echo "ci=${{ github.workspace }}/ci/benchmarking" >> "$GITHUB_OUTPUT"
          echo "benchmark=${{ github.workspace }}/benchmark" >> "$GITHUB_OUTPUT"
          echo "build=${{ github.workspace }}/benchmark/cmake-build-release" >> "$GITHUB_OUTPUT"

      - name: Load CMake configuration
        run: >
          cmake -B ${{ steps.strings.outputs.build }}
          -DCMAKE_CXX_COMPILER=g++
          -DCMAKE_C_COMPILER=gcc
          -DCMAKE_BUILD_TYPE=Release
          -S ${{ steps.strings.outputs.benchmark }}

      - name: Build executable
        run: cmake --build ${{ steps.strings.outputs.build }} --target Benchmarking -j8

      - name: Run benchmark analysis
        working-directory: ${{ steps.strings.outputs.build }}
        run: ./Benchmarking --benchmark_out=benchmarks.json --benchmark_out_format=json

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'

      - name: Write job summary
        run: |
          echo "## Benchmark Results" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          python ${{ steps.strings.outputs.ci }}/make_summary.py \
            ${{ steps.strings.outputs.build }}/benchmarks.json >> $GITHUB_STEP_SUMMARY

      - name: Upload benchmark results
        uses: actions/upload-artifact@v7
        with:
          name: benchmark-results
          path: ${{ steps.strings.outputs.build }}/benchmarks.json