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| index.d.ts | ||
| index.js | ||
| LICENSE | ||
| package.json | ||
| README.md | ||
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.
See also
- pkg-ok - 👌 Prevents publishing a module with bad paths
- husky - 🐶 Git hooks made easy
- update-notifier - Update notifications for your CLI app
Thanks to zeit/serve for the error message inspiration.
License
MIT - Typicode 🌵 - Patreon