hotpath-profile.yml

name: Hotpath profile

on:
  pull_request:
    paths-ignore:
      - '**.md'
      - 'demo/**'
      - 'docs/**'

defaults:
  run:
    shell: bash

permissions:
  contents: read

jobs:
  profile:
    runs-on: ubuntu-latest
    env:
      PGDATABASE: test
      PGHOST: localhost
      PGUSER: postgres
      PGPASSWORD: postgres
    services:
      postgres:
        image: postgis/postgis:18-3.6
        ports:
          - 5432/tcp
        options: >-
          -e POSTGRES_DB=test
          -e POSTGRES_USER=postgres
          -e POSTGRES_PASSWORD=postgres
          -e PGDATABASE=test
          -e PGUSER=postgres
          -e PGPASSWORD=postgres
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5

    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - run: rustup update stable && rustup default stable
      - uses: Swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4 # v2.9.1
      - uses: taiki-e/install-action@cf525cb33f51aca27cd6fa02034117ab963ff9f1 # v2.75.22
        with: { tool: 'just,oha' }
      - name: Install rendering dependencies
        run: just install-dependencies

      - name: Init database
        run: tests/fixtures/initdb.sh
        env:
          PGPORT: ${{ job.services.postgres.ports[5432] }}

      - name: Create metrics directory
        run: mkdir -p /tmp/metrics

      - name: Build head
        run: just build-hotpath

      - name: Benchmark head
        env:
          HOTPATH_OUTPUT_FORMAT: json
          HOTPATH_OUTPUT_PATH: /tmp/metrics/head_timing.json
          HOTPATH_ALLOC_SELF: true
          DATABASE_URL: postgres://${{ env.PGUSER }}:${{ env.PGPASSWORD }}@${{ env.PGHOST }}:${{ job.services.postgres.ports[5432] }}/${{ env.PGDATABASE }}
        run: |
          set -euo pipefail
          just bench-server-hotpath &
          MARTIN_PID=$!

          for i in {1..1000}; do
            if curl -sf http://localhost:3000/health > /dev/null 2>&1; then break; fi
            sleep 1
          done
          curl -sf http://localhost:3000/health > /dev/null 2>&1 || { echo "::error::Martin failed to start"; kill $MARTIN_PID 2>/dev/null; exit 1; }

          just bench-http 1m 100k

          kill $MARTIN_PID 2>/dev/null || true
          wait $MARTIN_PID || true

      - name: Checkout base
        run: git checkout ${{ github.event.pull_request.base.sha }}

      - name: Clean slate to not have codegen cache artefact bias
        run: cargo clean

      - name: Check base has hotpath support
        id: base-check
        run: |
          if grep -q '__hotpath' martin/Cargo.toml; then
            echo "supported=true" >> "$GITHUB_OUTPUT"
          else
            echo "::notice::Base branch does not have __hotpath feature, skipping base benchmark"
            echo '{}' > /tmp/metrics/base_timing.json
            echo "supported=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Build base
        if: steps.base-check.outputs.supported == 'true'
        run: just build-hotpath

      - name: Benchmark base
        if: steps.base-check.outputs.supported == 'true'
        env:
          HOTPATH_OUTPUT_FORMAT: json
          HOTPATH_OUTPUT_PATH: /tmp/metrics/base_timing.json
          HOTPATH_ALLOC_SELF: true
          DATABASE_URL: postgres://${{ env.PGUSER }}:${{ env.PGPASSWORD }}@${{ env.PGHOST }}:${{ job.services.postgres.ports[5432] }}/${{ env.PGDATABASE }}
        run: |
          set -euo pipefail
          just bench-server-hotpath &
          MARTIN_PID=$!

          for i in {1..1000}; do
            if curl -sf http://localhost:3000/health > /dev/null 2>&1; then break; fi
            sleep 1
          done
          curl -sf http://localhost:3000/health > /dev/null 2>&1 || { echo "::error::Martin failed to start"; kill $MARTIN_PID 2>/dev/null; exit 1; }

          just bench-http 1m 100k

          kill "$MARTIN_PID" 2>/dev/null || true
          wait "$MARTIN_PID" || true

      - name: Save PR metadata
        env:
          PR_NUMBER: ${{ github.event.pull_request.number }}
          BASE_REF: ${{ github.base_ref }}
          HEAD_REF: ${{ github.head_ref }}
        run: |
          echo "$PR_NUMBER" > /tmp/metrics/pr_number.txt
          echo "$BASE_REF" > /tmp/metrics/base_ref.txt
          echo "$HEAD_REF" > /tmp/metrics/head_ref.txt

      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: profile-metrics
          path: /tmp/metrics/
          retention-days: 1