@em-cli/shared/dist/environment.js

脚手架工具方法包

import resolveCwd from 'resolve-cwd';
import { execa } from 'execa';
import logger from "./logger";
/**
 * 判断当前项目是不是一个 monorepo项目
 */

export function checkIsMonorepo() {
  const monorepoFiles = ['pnpm-workspace.yaml', 'lerna.json'];
  return monorepoFiles.map(v => `./${v}`).map(resolveCwd.silent).map(Boolean).some(Boolean);
}
/**
 * 通过检查是否判断是否支持一些命令
 * 比如 pnpm npm jest等等
 */

const pkgManager = ['pnpm', 'npm', 'yarn'];
export async function support(commands) {
  const normalizedCommands = commands.map(cmd => {
    if (typeof cmd === 'string') {
      return {
        cmd: cmd,
        args: ['--version']
      };
    }

    return cmd;
  });

  const imp = async ({
    cmd,
    args
  }) => {
    try {
      if (pkgManager.includes(cmd)) {
        await execa(cmd, args);
        logger.success(`support ${cmd}`);
      } else {
        await execa('node', [resolveCwd(cmd), ...args]);
        logger.success(`support ${cmd}`);
      }

      return true;
    } catch (e) {
      logger.error(`can't find ${cmd}, check args is ${args}`);
      return false;
    }
  };

  const result = await Promise.all(normalizedCommands.map(imp));
  return result.every(Boolean);
}