teleport/.github/workflows/benchmark-code-root.yaml

name: Benchmarks Diff (Root) (Go)
run-name: Benchmarks Diff (Root) (Go) - ${{ github.run_id }} - @${{ github.actor }}

on:
  merge_group:

jobs:
  changes:
    name: Check for relevant changes
    runs-on: ubuntu-latest
    permissions:
      pull-requests: read
    outputs:
      changed: ${{ steps.changes.outputs.changed }}
    steps:
      - name: Checkout
        uses: actions/checkout@v6
      - uses: dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1
        id: changes
        with:
          base: ${{ github.event.pull_request.base.ref || github.event.merge_group.base_ref }}
          ref: ${{ github.event.pull_request.head.ref || github.event.merge_group.head_ref }}
          filters: |
            changed:
              - '.github/workflows/benchmark-code-root.yaml'
              - '**.go'
              - 'go.mod'
              - 'go.sum'
              - 'build.assets/Makefile'
              - 'build.assets/Dockerfile*'
              - 'Makefile'

  benchmark:
    name: Benchmarks (Root) (Go)
    needs: changes
    if: ${{ needs.changes.outputs.changed == 'true' }}
    runs-on: ubuntu-22.04-32core
    permissions:
      contents: read

    container:
      image: ghcr.io/gravitational/teleport-buildbox:teleport19
      options: --cap-add=SYS_ADMIN --privileged
      env:
        TELEPORT_XAUTH_TEST: yes
        WEBASSETS_SKIP_BUILD: 1
        BENCH_TIME: "2s"
        BENCH_COUNT: 10
        GIT_BASE_SHA: ${{ github.event.pull_request.base.sha || github.event.merge_group.base_sha || github.event.before }}
        GIT_HEAD_SHA: ${{ github.sha }}

    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 2

      - name: Prepare workspace
        uses: ./.github/actions/prepare-workspace

      - name: Run head benchmarks
        timeout-minutes: 10
        run: |
          make test-go-bench-root BENCH_OUTPUT=test-logs/bench-${GIT_HEAD_SHA}.txt

      - name: Checkout base commit
        uses: actions/checkout@v6
        with:
          clean: false # Preserve previous results
          ref: ${{ github.event.pull_request.base.sha || github.event.merge_group.base_sha || github.event.before }}

      - name: Run base benchmarks
        timeout-minutes: 10
        run: |
          make test-go-bench-root BENCH_OUTPUT=test-logs/bench-${GIT_BASE_SHA}.txt

      - name: Generate benchstat output
        shell: bash
        run: |
          make benchstat BENCH_FILES="test-logs/bench-${GIT_BASE_SHA}.txt test-logs/bench-${GIT_HEAD_SHA}.txt"

      - name: Publish benchstat summary
        shell: bash
        run: |
          {
            echo "## Go benchmark diff"
            echo ""
            echo "**Base:** \`${GIT_BASE_SHA}\`"
            echo "**Head:** \`${GIT_HEAD_SHA}\`"
            echo ""
            echo '```'
            cat test-logs/benchstat.txt
            echo '```'
          } >> "$GITHUB_STEP_SUMMARY"