name: CodSpeed

on:
  pull_request:
    paths-ignore:
      - 'docs/**'
      - 'justfile'
      - '.devcontainer'
      - '**/*.md'
      - '.gitignore'
  merge_group:
  push:
    branches:
      - main

concurrency:
  group: codspeed.yml-${{ github.event.pull_request.number || github.run_id }}
  cancel-in-progress: true

permissions:
  # Write cache
  contents: write

jobs:
  benchmarks:
    name: Run benchmarks
    runs-on: ubuntu-22.04-16core
    env:
      BAZEL_ARGS: --config=benchmark --@google_benchmark//:codspeed_mode=simulation --remote_cache=https://bazel:${{ secrets.BAZEL_CACHE_KEY }}@bazel-remote-cache.devprod.cloudflare.dev
    steps:
      - uses: actions/checkout@v6
        with:
          show-progress: false

      - name: Cache
        id: cache
        uses: actions/cache@v5
        with:
          path: ~/bazel-disk-cache
          key: bazel-disk-cache-benchmarks-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('.bazelversion', '.bazelrc', 'MODULE.bazel') }}

      - name: Setup Runner
        uses: ./.github/actions/setup-runner
        with:
          GOOGLESOURCE_COOKIE: ${{ secrets.GOOGLESOURCE_COOKIE }}

      - name: Build benchmarks
        run: |
          bazel build ${{ env.BAZEL_ARGS }} --build_tag_filters=google_benchmark //... @capnp-cpp//...

      - name: Generate benchmark script
        run: |
          echo '#!/bin/bash' > run_benchmarks.sh
          echo 'set -ex' >> run_benchmarks.sh
          targets=$(bazel query 'attr(tags, "[\[ ]google_benchmark[,\]]", //... + @capnp-cpp//...) except attr(tags, "[\[ ]manual[,\]]", //...)' --output=label 2>/dev/null)
          for target in $targets; do
            echo "echo 'Running benchmark: $target'" >> run_benchmarks.sh
            echo "bazel run ${{ env.BAZEL_ARGS }} $target -- --benchmark_min_time=1s" >> run_benchmarks.sh
          done
          chmod +x run_benchmarks.sh

      - name: Run benchmarks
        uses: CodSpeedHQ/action@v4
        with:
          mode: simulation
          run: ./run_benchmarks.sh

      - name: Bazel shutdown
        run: bazel shutdown