[Question] Is there any way to prevent users from running 'npm install <package name>'

[hekod777]

While using yarn, I want to have some kind of mechanism to prevent people from using npm install <package name>. I'd like to know if there is any way to get this done.

additional notes:

1. add the following codes to package.json can prevent people from using npm install

  "scripts": {
    "preinstall": "node -e \"if(process.env.npm_execpath.indexOf('yarn') === -1) throw new Error('You must use Yarn to install, not NPM')\""
  },

2. I asked the same questions in yarn's issue page:

yarnpkg/yarn#4895

[cjihrig]

The yarn issue tracker is the correct place for this question. Thanks!