check-package-manager

Check that the correct package manager is being used with your project.

To configure the correct package manager, you can use the packageManager property in your package.json file or you can specify it in the cli arguments.

ℹ️ This package requires Node >= 18. If you use an older Node version, the cli will exit and print a warning.

Install

npm i check-package-manager -D

ℹ️ You can use npx check-package-manager [options] in your preinstall script if you don't want to add it as a dependency.

Usage

check-package-manager [options] [packageManager]

ℹ️ Depending on the package manager being used, the preinstall script may get invoked after dependencies are installed.

Arguments

packageManager (optional) - <package manager name>[@<version>]

Options

--info - Print info messages

--debug - Print debug messages

Examples

When using corepack:

{
  "name": "YOUR-PACKAGE-NAME",
  "version": "1.0.0",
  "packageManager": "pnpm@7.19.0",
  "scripts": {
    "preinstall": "npx check-package-manager"
  }
}

Specify the package manager name and version yourself:

{
  "name": "YOUR-PACKAGE-NAME",
  "version": "1.0.0",
  "scripts": {
    "preinstall": "npx check-package-manager npm@9.2.0"
  }
}

Specify only the package manager name:

{
  "name": "YOUR-PACKAGE-NAME",
  "version": "1.0.0",
  "scripts": {
    "preinstall": "npx check-package-manager yarn"
  }
}

Local development

fnm use
corepack enable
pnpm install
pnpm build