详解如何实现一个简单的Node.js脚手架

{
 ...,
 "bin": {
    "cm-cli": "command.js"
  }
}

const commander = require('commander');

commander.version('1.0.0')
  .option('-a, --aaa', 'aaaaa')
  .option('-b, --bbb', 'bbbbb')
  .option('-c, --ccc [name]', 'ccccc')
  .parse(process.argv);


if (commander.aaa) {
  console.log('aaa');
}

if (commander.bbb) {
  console.log('bbb');
}

if (commander.ccc) {
  console.log('ccc', commander.ccc);
}

commander
  .command('init <extensionId>')
  .description('init extension project')
  .action((extensionId) => {
    console.log(`init Extension Project "${extensionId}"`);
    // todo something you need
  });

commander
  .command('init <extensionId>')
  .description('init extension project')
  .action((extensionId) => {
    id = extensionId;
    console.log(`init Extension Project "${extensionId}"`);

    cmd.get(
      `
      mkdir -p static/${extensionId}

      mkdir tmp
      mkdir tmp/source-file
      mkdir tmp/build-file
      curl -o tmp/source-file/index.js https://xxxxxxxx.com?filename=index.js
      touch tmp/source-file/index.css

      curl -o tmp/build-file/server.js https://xxxxxxxx.com?filename=server.js
      curl -o tmp/build-file/router.js https://xxxxxxxx.com?filename=router.js
      curl -o tmp/build-file/package.json https://xxxxxxxx.com?filename=package.json
      
      cp tmp/source-file/* static/${extensionId}
      cp tmp/build-file/* ./
      rm -fr tmp
      npm install
      `,
      (err, data) => {
        console.log(data)
        if (!err) {
          console.log('init success');
          return;
        }

        console.error('init error');
      });
  });