Package Exports

please-upgrade-node

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (please-upgrade-node) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Please upgrade Node

💁 show a message to your users to upgrade Node instead of a stacktrace

It's common for new Node users to miss or not understand engines warning when installing a CLI. This package displays a beginner-friendly message if their Node version is below the one expected.

$ node -v
0.12

$ modern-cli
modern-cli requires at least version 6 of Node, please upgrade

Support

If you like this project, you can support me on GitHub Sponsors

Usage

npm install please-upgrade-node

Add please-upgrade-node at the top of your CLI

#!/usr/bin/env node
const pkg = require('./package.json')
require('please-upgrade-node')(pkg) // <- Must run BEFORE requiring any other modules

// ...

Set in your package.json the required Node version

{
  "engines": {
    "node": ">=6"
  }
}

Important: >= is the only operator supported by please-upgrade-node (e.g. >=6, >=6.0, >=6.0.0).

Options

You can set custom exitCode and message function if needed

pleaseUpgradeNode(pkg, {
  exitCode: 0, // Default: 1
  message: function(requiredVersion) {
    return 'Oops this program require Node ' +  requiredVersion
  }
})

Important: to keep message function compatible with older versions of Node, avoid using ES6 features like => or string interpolation.

License

MIT - Typicode 🌵 - Patreon