如何在节点模块中保存用户指定的配置？

Question

I am trying to build a CLI with node (using commander.js) and I would like to save user specific configuration, so that a user only has to enter it on the first usage. How would I do this?

Answer 1

You can write to a hidden file in, say, ~/.mycliconfig and the just read the file synchronously

try{
  var userData = fs.readFileSync(process.env.HOME + '/.mycliconfig');
} catch(e){
  if (e.code === 'ENOENT') {
    console.log('File not found!');
  } else {
    throw e;
  }
}

If you need to save more stuff you can always create a wrapper folder and drop all files in there.