liven 0.0.7

name: Docker Image
on:
  push:
    branches: [main]
    tags-ignore:
      - "**"
  pull_request:
    branches: [main]
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
jobs:
  docker:
    name: Build & Push
    runs-on: ubuntu-latest
    timeout-minutes: 60
    permissions:
      contents: read
      packages: write
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Extract metadata for Docker
        id: meta
        uses: docker/metadata-action@v6
        with:
          images: ghcr.io/${{ github.repository }}
          tags: |
            type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master' }}
            type=sha,format=short
            type=ref,event=branch
            type=ref,event=pr
      - name: Build and push Docker image
        uses: docker/build-push-action@v7
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name == 'push' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  # ── Reproducible benchmarks ──
  benchmark:
    name: Benchmarks
    if: github.event_name == 'push' || github.event_name == 'pull_request'
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout repository
        uses: actions/checkout@v7

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: Cache Docker layers
        uses: actions/cache@v4
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-buildx-bench-${{ hashFiles('Dockerfile.bench', 'Cargo.lock') }}
          restore-keys: |
            ${{ runner.os }}-buildx-bench-

      # Persist Criterion's baseline stats across runs so `change:` comparisons
      # are meaningful instead of comparing against an empty/fresh state each time.
      - name: Cache criterion baseline
        uses: actions/cache@v4
        with:
          path: ${{ github.workspace }}/criterion-data
          key: criterion-${{ github.ref }}
          restore-keys: |
            criterion-refs/heads/main
            criterion-

      - name: Build benchmark image
        run: |
          mkdir -p /tmp/.buildx-cache
          docker buildx build \
            --cache-from type=local,src=/tmp/.buildx-cache \
            --cache-to type=local,dest=/tmp/.buildx-cache-new,mode=max \
            --load \
            -t liven-bench \
            -f Dockerfile.bench \
            .

      - name: Run benchmarks
        run: |
          mkdir -p criterion-data
          docker run --rm \
            -v "${{ github.workspace }}/criterion-data:/app/target/criterion" \
            liven-bench | tee bench-output.txt

      - name: Upload benchmark log
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: bench-output-${{ github.sha }}
          path: bench-output.txt
          retention-days: 90

      - name: Upload criterion report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: criterion-report-${{ github.sha }}
          path: criterion-data
          retention-days: 30

      - name: Move docker layer cache
        if: always()
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache