@selemondev/create-react-next/src/utils/getPackageManager.ts

The Next Generation React Scaffolding Tool ✨

export type PackageManager = 'npm' | 'yarn' | 'pnpm' | 'bun'
export const getPackageManager = (): PackageManager => {
    const userAgent = process.env.npm_config_user_agent || '';

    if (userAgent) {
        if (userAgent.startsWith('npm')) {
            return 'npm'
        };

        if (userAgent.startsWith('yarn')) {
            return "yarn"
        }

        if (userAgent.startsWith('pnpm')) {
            return "pnpm"
        }

        if (userAgent.startsWith('bun')) {
            return "bun"
        }
    }
    return 'npm'
}