mcp-mermiad

#!/bin/bash # Mermaid MCP Connector Startup Script # This script starts the MCP server and connector if they're not already running set -e # Colors for output RED='\033[0;31m' GREEN='\033[0;32m' YELLOW='\033[1;33m' BLUE='\033[0;34m' NC='\033[0m' # No Color echo -e "${BLUE}╔════════════════════════════════════════════════════════╗${NC}" echo -e "${BLUE}║ Mermaid MCP Connector - Startup Manager ║${NC}" echo -e "${BLUE}╚════════════════════════════════════════════════════════╝${NC}" echo "" # Configuration CONNECTOR_DIR="/Users/narasimharao.ponnada/Documents/Mermaid/mcp-connector" MCP_SERVER_PORT=3000 MCP_SERVER_LOG="$CONNECTOR_DIR/mcp-server.log" CONNECTOR_LOG="$CONNECTOR_DIR/connector.log" CONNECTOR_PID_FILE="$CONNECTOR_DIR/.connector.pid" # Function to check if a process is running is_process_running() { local pid=$1 if [ -z "$pid" ]; then return 1 fi ps -p "$pid" > /dev/null 2>&1 return $? } # Function to check if port is in use is_port_in_use() { local port=$1 lsof -i :$port -sTCP:LISTEN -t >/dev/null 2>&1 return $? } # Function to stop processes stop_processes() { echo -e "${YELLOW}🛑 Stopping existing processes...${NC}" # Stop connector if [ -f "$CONNECTOR_PID_FILE" ]; then local pid=$(cat "$CONNECTOR_PID_FILE") if is_process_running "$pid"; then echo -e " Stopping connector (PID: $pid)..." kill "$pid" 2>/dev/null || true sleep 2 if is_process_running "$pid"; then kill -9 "$pid" 2>/dev/null || true fi fi rm -f "$CONNECTOR_PID_FILE" fi # Stop any process on port 3000 if is_port_in_use $MCP_SERVER_PORT; then local pid=$(lsof -ti :$MCP_SERVER_PORT) echo -e " Stopping process on port $MCP_SERVER_PORT (PID: $pid)..." kill "$pid" 2>/dev/null || true sleep 2 fi echo -e "${GREEN}✅ Cleanup complete${NC}" echo "" } # Function to start the connector start_connector() { echo -e "${BLUE}🚀 Starting Mermaid MCP Connector...${NC}" # Check if already running if [ -f "$CONNECTOR_PID_FILE" ]; then local pid=$(cat "$CONNECTOR_PID_FILE") if is_process_running "$pid"; then echo -e "${YELLOW}⚠️ Connector already running (PID: $pid)${NC}" return 0 fi fi # Check if port is available if is_port_in_use $MCP_SERVER_PORT; then echo -e "${RED}❌ Port $MCP_SERVER_PORT is already in use${NC}" echo -e " Run with --stop first to clean up" return 1 fi # Start connector in background cd "$CONNECTOR_DIR" echo -e " Starting connector on port $MCP_SERVER_PORT..." nohup node dist/cli.js rest > "$CONNECTOR_LOG" 2>&1 & local pid=$! echo $pid > "$CONNECTOR_PID_FILE" # Wait a bit and check if it started successfully sleep 3 if is_process_running "$pid"; then echo -e "${GREEN}✅ Connector started successfully (PID: $pid)${NC}" echo -e " Log file: $CONNECTOR_LOG" echo -e " API: http://localhost:$MCP_SERVER_PORT" # Test health endpoint if curl -s http://localhost:$MCP_SERVER_PORT/health > /dev/null 2>&1; then echo -e "${GREEN}✅ Health check passed${NC}" else echo -e "${YELLOW}⚠️ Health check failed (server may still be initializing)${NC}" fi return 0 else echo -e "${RED}❌ Connector failed to start${NC}" echo -e " Check log: tail -f $CONNECTOR_LOG" rm -f "$CONNECTOR_PID_FILE" return 1 fi } # Function to check status check_status() { echo -e "${BLUE}📊 Status Check${NC}" echo "" local all_good=true # Check connector if [ -f "$CONNECTOR_PID_FILE" ]; then local pid=$(cat "$CONNECTOR_PID_FILE") if is_process_running "$pid"; then echo -e "${GREEN}✅ Connector: Running (PID: $pid)${NC}" else echo -e "${RED}❌ Connector: Not running (stale PID file)${NC}" all_good=false fi else echo -e "${RED}❌ Connector: Not running${NC}" all_good=false fi # Check port if is_port_in_use $MCP_SERVER_PORT; then local pid=$(lsof -ti :$MCP_SERVER_PORT) echo -e "${GREEN}✅ Port $MCP_SERVER_PORT: In use by PID $pid${NC}" else echo -e "${RED}❌ Port $MCP_SERVER_PORT: Not in use${NC}" all_good=false fi # Check health endpoint if curl -s http://localhost:$MCP_SERVER_PORT/health > /dev/null 2>&1; then echo -e "${GREEN}✅ Health endpoint: Responding${NC}" else echo -e "${RED}❌ Health endpoint: Not responding${NC}" all_good=false fi echo "" if [ "$all_good" = true ]; then echo -e "${GREEN}🎉 All systems operational!${NC}" else echo -e "${YELLOW}⚠️ Some services are not running${NC}" echo -e " Run: $0 --start" fi } # Function to show logs show_logs() { echo -e "${BLUE}📋 Recent Logs${NC}" echo "" if [ -f "$CONNECTOR_LOG" ]; then echo -e "${YELLOW}=== Connector Log (last 20 lines) ===${NC}" tail -20 "$CONNECTOR_LOG" else echo -e "${RED}No connector log found${NC}" fi echo "" } # Function to test with curl run_tests() { echo -e "${BLUE}🧪 Running Tests${NC}" echo "" # Test 1: Health check echo -e "${YELLOW}Test 1: Health Check${NC}" response=$(curl -s http://localhost:$MCP_SERVER_PORT/health) if echo "$response" | grep -q "ok"; then echo -e "${GREEN}✅ PASS${NC}: $response" else echo -e "${RED}❌ FAIL${NC}: $response" fi echo "" # Test 2: Diagram types echo -e "${YELLOW}Test 2: Get Diagram Types${NC}" response=$(curl -s http://localhost:$MCP_SERVER_PORT/api/diagram/types) if echo "$response" | grep -q "success"; then echo -e "${GREEN}✅ PASS${NC}: Got diagram types" else echo -e "${RED}❌ FAIL${NC}: $response" fi echo "" # Test 3: Generate diagram echo -e "${YELLOW}Test 3: Generate Diagram${NC}" response=$(curl -s -X POST http://localhost:$MCP_SERVER_PORT/api/diagram/generate \ -H "Content-Type: application/json" \ -d '{"description": "Create a simple flowchart with start and end"}') if echo "$response" | grep -q "success"; then echo -e "${GREEN}✅ PASS${NC}: Diagram generated" echo "Response preview: $(echo "$response" | jq -r '.data.type' 2>/dev/null || echo 'N/A')" else echo -e "${RED}❌ FAIL${NC}: $response" fi echo "" } # Main script logic case "${1:-}" in --start) start_connector ;; --stop) stop_processes ;; --restart) stop_processes sleep 2 start_connector ;; --status) check_status ;; --logs) show_logs ;; --test) run_tests ;; --help|-h) echo "Usage: $0 [OPTION]" echo "" echo "Options:" echo " --start Start the connector (if not already running)" echo " --stop Stop the connector and cleanup" echo " --restart Stop and start the connector" echo " --status Check if services are running" echo " --logs Show recent logs" echo " --test Run curl tests against the API" echo " --help Show this help message" echo "" echo "Examples:" echo " $0 --start # Start the connector" echo " $0 --status # Check if running" echo " $0 --test # Test with curl commands" echo " $0 --logs # View logs" echo "" ;; "") # Default: start if not running, otherwise show status if [ -f "$CONNECTOR_PID_FILE" ]; then local pid=$(cat "$CONNECTOR_PID_FILE") if is_process_running "$pid"; then check_status else start_connector fi else start_connector fi ;; *) echo -e "${RED}Unknown option: $1${NC}" echo "Run '$0 --help' for usage information" exit 1 ;; esac