sharechat-setup/src/helpers/getUserPackageManager.ts

A generic cli to setup mundane node tasks

export enum PackageManager {
  npm ="npm",
  yarn = "yarn",
  pnpm = "pnpm"
}

export const InstallationDependenciesMap: Record<PackageManager,(arg:string)=>string>= {
  npm:(command:string)=>`npm i -D ${command}`,
  yarn:(command:string)=>`yarn add -D ${command}`,
  pnpm:(command:string)=>`pnpm i -D ${command}`
} as const

export const getUserPkgManager: () => PackageManager = () => {
  // This environment variable is set by npm and yarn but pnpm seems less consistent
  const userAgent = process.env.npm_config_user_agent;

  if (userAgent) {
    if (userAgent.startsWith("yarn")) {
      return PackageManager.yarn
    } else if (userAgent.startsWith("pnpm")) {
      return PackageManager.pnpm
    } else {
      return PackageManager.npm
    }
  } else {
    // If no user agent is set, assume npm
    return PackageManager.npm
  }
};