build.sh

#!/usr/bin/env bash
set -euo pipefail

SERVICES=(
  rust-axum spring-graal-jpa spring-graal-jdbc spring-jpa
  spring-graal-reactive python-fastapi go-fiber dotnet-mvc dotnet-aot
)

cd "$(dirname "$0")"

# Parse arguments: optional list of services to build
if [ $# -eq 0 ]; then
  targets=("${SERVICES[@]}")
else
  targets=("${@}")
fi

echo "=== Building ${#targets[@]} service(s) ==="

# 1. Infrastructure (Postgres + migrations)
echo ""
echo "[infra] Starting database and running migrations..."
docker compose up -d postgres
docker compose up migrations  # runs migrations then exits

# 2. Build bench client
echo ""
echo "[bench] Building benchmark client..."
(cd bench/client && cargo build --release)

# 3. Build service images
# GraalVM native-image needs ~4GB RAM each, so build those sequentially to avoid OOM.
# All other services can build in parallel.
GRAAL_SERVICES=(spring-graal-jpa spring-graal-jdbc spring-graal-reactive)
parallel=()
sequential=()
for t in "${targets[@]}"; do
  is_graal=false
  for g in "${GRAAL_SERVICES[@]}"; do
    if [ "$t" = "$g" ]; then is_graal=true; break; fi
  done
  if $is_graal; then
    sequential+=("$t")
  else
    parallel+=("$t")
  fi
done

if [ ${#parallel[@]} -gt 0 ]; then
  echo ""
  echo "[docker] Building non-GraalVM services in parallel..."
  docker compose build "${parallel[@]}"
fi

for svc in "${sequential[@]}"; do
  echo ""
  echo "[docker] Building ${svc} (GraalVM native — sequential to avoid OOM)..."
  docker compose build "$svc"
done

# 4. Summary
echo ""
echo "=== Build complete ==="
echo "  Services: ${targets[*]}"
echo "  Bench client: bench/client/target/release/bench-client"
echo ""
echo "Run ./run.sh to start benchmarking (or ./run.sh rust-axum go-fiber for specific targets)."