benchmark.yaml

name: Benchmark

on:
  pull_request:

jobs:
  benchmark:
    name: Benchmark
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
      - name: Run benchmark
        run: |
          mkdir -p ./profile
          {
            echo "stdout<<EOF"
            go test -short -benchmem -bench . -cpuprofile ./profile/cpu.out -memprofile ./profile/mem.out
            echo "EOF"
          } >> $GITHUB_OUTPUT
        id: bench
      - uses: actions/upload-artifact@v4
        id: artifact
        with:
          name: profile
          path: profile
      - name: Comment
        run: |
          cat << EOF > ./body.txt
          ## Benchmark Result

          \`\`\`text
          ${{ steps.bench.outputs.stdout }}
          \`\`\`

          <details>
          <summary>pprof command</summary>

          \`\`\`sh
          gh api /repos/${{ github.repository }}/actions/artifacts/${{ steps.artifact.outputs.artifact-id }}/zip > /tmp/profile.zip
          unzip /tmp/profile.zip -d profile
          rm -rf /tmp/profile.zip
          go tool pprof -http :6060 profile/cpu.out
          \`\`\`
          </details>
          EOF

          gh pr comment ${{ github.event.pull_request.number }} --edit-last -F ./body.txt --repo ${{ github.repository }} ||
            gh pr comment ${{ github.event.pull_request.number }} -F ./body.txt --repo ${{ github.repository }}
        env:
          GH_TOKEN: ${{ github.token }}