@langgraph-js/bundler/dist/cli.js

Build tool for LangGraph.js applications that packages graph configurations into deployable modules

#!/usr/bin/env node
import { buildLanggraph } from './build.js';
import path from 'path';
import { readFile } from 'fs/promises';
import { fileURLToPath } from 'url';
// 解析命令行参数
const args = process.argv.slice(2);
const options = {
    cwd: process.cwd(),
    help: false,
    version: false,
    db: 'postgres', // 默认数据库类型为 postgres
};
// 获取当前文件的目录
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
// 读取package.json获取版本号
const packagePath = path.resolve(__dirname, '../package.json');
const packageJson = JSON.parse(await readFile(packagePath, 'utf-8'));
const { version } = packageJson;
// 解析命令行参数
for (let i = 0; i < args.length; i++) {
    const arg = args[i];
    if (arg === '--help' || arg === '-h') {
        options.help = true;
    }
    else if (arg === '--version' || arg === '-v') {
        options.version = true;
    }
    else if (arg === '--cwd' && i + 1 < args.length) {
        options.cwd = path.resolve(process.cwd(), args[++i]);
    }
    else if (arg.startsWith('--db=')) {
        const dbType = arg.split('=')[1];
        if (dbType === 'sqlite' || dbType === 'postgres') {
            options.db = dbType;
        }
        else {
            console.warn(`不支持的数据库类型: ${dbType}，使用默认值 sqlite`);
        }
    }
}
// 显示帮助信息
if (options.help) {
    console.log(`
@langgraph-js/bundler v${version}

A build tool for LangGraph.js applications that packages graph configurations into deployable modules.

USAGE:
  npx @langgraph-js/bundler [OPTIONS]

OPTIONS:
  --help, -h     显示帮助信息
  --version, -v  显示版本信息
  --cwd <path>   指定工作目录 (默认: 当前目录)
  --db=<type>    指定数据库类型，可选值: sqlite, postgres (默认: postgres)

EXAMPLES:
  npx @langgraph-js/bundler
  npx @langgraph-js/bundler --cwd ./my-project
  npx @langgraph-js/bundler --db=postgres
  `);
    process.exit(0);
}
// 显示版本信息
if (options.version) {
    console.log(`@langgraph-js/bundler v${version}`);
    process.exit(0);
}
// 执行构建
buildLanggraph(options.cwd, options.db).catch((err) => {
    console.error('构建失败:', err);
    process.exit(1);
});
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