Manage Multiple Local Development Services

#!/bin/bash

# Define your services/commands
SERVICES=(
  "frontend:cd frontend && npm start"
  "backend:cd backend && npm run dev"
  "database:docker-compose up -d db"
)

ACTION="$1"

function start_service() {
  local name="$1"
  local cmd="$2"
  echo "Starting $name..."
  eval "$cmd" &> /dev/null &
  echo "$!" > "/tmp/${name// /_}.pid"
  echo "$name started (PID: $(cat "/tmp/${name// /_}.pid"))"
}

function stop_service() {
  local name="$1"
  local pid_file="/tmp/${name// /_}.pid"
  if [ -f "$pid_file" ]; then
    local pid=$(cat "$pid_file")
    echo "Stopping $name (PID: $pid)..."
    kill "$pid"
    rm "$pid_file"
    echo "$name stopped."
  else
    echo "$name is not running or PID file not found."
  fi
}

function status_service() {
  local name="$1"
  local pid_file="/tmp/${name// /_}.pid"
  if [ -f "$pid_file" ]; then
    local pid=$(cat "$pid_file")
    if ps -p "$pid" &> /dev/null; then
      echo "$name is RUNNING (PID: $pid)"
    else
      echo "$name is NOT RUNNING (stale PID file)."
      rm "$pid_file"
    fi
  else
    echo "$name is NOT RUNNING."
  fi
}

case "$ACTION" in
  start)
    for service_entry in "${SERVICES[@]}"; do
      IFS=':' read -r name cmd <<< "$service_entry"
      start_service "$name" "$cmd"
    done
    echo "All services started. Check /tmp/*.pid for PIDs."
    ;;
  stop)
    for service_entry in "${SERVICES[@]}"; do
      IFS=':' read -r name cmd <<< "$service_entry"
      stop_service "$name"
    done
    echo "All services stopped."
    ;;
  restart)
    "$0" stop
    sleep 2
    "$0" start
    ;;
  status)
    for service_entry in "${SERVICES[@]}"; do
      IFS=':' read -r name cmd <<< "$service_entry"
      status_service "$name"
    done
    ;;
  *)
    echo "Usage: $0 {start|stop|restart|status}"
    exit 1
    ;;
esac