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

on:
  pull_request:

  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
        if: ${{ github.event_name == 'merge_group' }}
        uses: actions/checkout@v4
      - uses: dorny/paths-filter@de90cc6fb38fc0963ad72b210f1f284cd68cea36 # v3.0.2
        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'

  test:
    name: Benchmarks (Root)
    needs: changes
    if: ${{ !startsWith(github.head_ref, 'dependabot/') && needs.changes.outputs.changed == 'true' }}
    runs-on: ubuntu-22.04-32core

    permissions:
      contents: read

    container:
      image: ghcr.io/gravitational/teleport-buildbox:teleport17
      options: --cap-add=SYS_ADMIN --privileged
      env:
        WEBASSETS_SKIP_BUILD: 1
        TELEPORT_XAUTH_TEST: yes

    steps:
      - name: Checkout Teleport
        uses: actions/checkout@v4

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

      # Run benchmarks once to make sure they don't break
      # Must be run separate since gotestsum is not compatible with benchmark output
      - name: Run Benchmarks Once
        timeout-minutes: 5
        shell: bash # Overriding default shell which is `sh -e`
        run: make test-go-bench-root | sed -u -E "s/^(FAIL\s+github)/::error title=Benchmark Failed::\1/"

      - name: Construct Summary
        shell: bash
        run: |
          echo '```' >> $GITHUB_STEP_SUMMARY
          go run golang.org/x/perf/cmd/benchstat@latest test-logs/bench.txt \
          | sed -E -e 's/^pkg:\s+(github.*)/\n```\n## \1\n\n```/'  >> "$GITHUB_STEP_SUMMARY"