docxtpl MCP Server

#!/usr/bin/env node import { spawn, spawnSync } from 'child_process'; import { fileURLToPath } from 'url'; import { dirname, join } from 'path'; import fs from 'fs'; import os from 'os'; const __filename = fileURLToPath(import.meta.url); const __dirname = dirname(__filename); const projectRoot = join(__dirname, '..'); // Check if running with --version flag if (process.argv.includes('--version')) { const packageJson = JSON.parse(fs.readFileSync(join(projectRoot, 'package.json'), 'utf8')); console.log(`docxtpl-mcp v${packageJson.version}`); process.exit(0); } // Check Python environment function checkPython() { const commands = ['python3.12', 'python3.11', 'python3.10', 'python3', 'python']; for (const cmd of commands) { try { const result = spawnSync(cmd, ['--version'], { stdio: 'pipe' }); if (result.status === 0) { const version = result.stdout.toString(); // Only log to stderr if not in MCP mode (MCP uses stdout for communication) if (process.env.MCP_MODE !== 'true') { console.error(`Using ${cmd}: ${version.trim()}`); } return cmd; } } catch (e) { // Silently continue to next command } } console.error('Error: Python 3.10+ is required but not found.'); console.error('Please install Python from https://www.python.org/'); process.exit(1); } // Start MCP server function startServer() { const pythonCmd = checkPython(); // Set up environment variables const env = { ...process.env, TEMPLATE_DIR: join(projectRoot, 'templates'), OUTPUT_DIR: process.env.OUTPUT_DIR || join(process.cwd(), 'output'), MCP_MODE: 'true' }; // Ensure output directory exists const outputDir = env.OUTPUT_DIR; if (!fs.existsSync(outputDir)) { try { fs.mkdirSync(outputDir, { recursive: true }); } catch (e) { // Silently handle if directory creation fails } } // Start Python process with stdio protocol for MCP const serverProcess = spawn(pythonCmd, ['-m', 'src.server'], { cwd: projectRoot, env: env, stdio: 'inherit' // Important: MCP uses stdio communication }); // Handle graceful shutdown process.on('SIGINT', () => { serverProcess.kill('SIGINT'); process.exit(0); }); process.on('SIGTERM', () => { serverProcess.kill('SIGTERM'); process.exit(0); }); serverProcess.on('error', (err) => { console.error('Failed to start server:', err.message); process.exit(1); }); serverProcess.on('exit', (code, signal) => { if (signal) { process.exit(0); } else { process.exit(code || 0); } }); } // Main execution try { startServer(); } catch (error) { console.error('Error starting docxtpl-mcp:', error.message); process.exit(1); }