yarn-or-npm

3.0.1 • Public • Published

yarn-or-npm

Execute scripts with Yarn or npm.

yarn add -D yarn-or-npm
# or 
npm i --save-dev yarn-or-npm

The client is determined by a series of ordered checks:

  1. yarn.lock file is in the nearest package directory - yarn
  2. package-lock.json file is in the nearest package directory - npm
  3. yarn is installed - yarn
  4. Fallback - npm

Module

import yarnOrNpm, { spawn, hasYarn, hasNpm } from 'yarn-or-npm';
 
// String of `yarn` or `npm` returned
console.log(yarnOrNpm());
 
// Boolean values for hasYarn, hasNpm
console.log(hasYarn());
 
// Spawn yarn or npm command
spawn(['init']);
 
// Spawn sync option
spawn.sync(['init'], { stdio: 'inherit' });

Under the covers, there are cached lookup values being used for efficiency. These can be manually cleared:

import yarnOrNpm from 'yarn-or-npm';
import { spawnSync } from 'child_process';
 
console.log(yarnOrNpm.hasYarn()); // false
 
spawnSync('npm', ['i', '-g', 'yarn'], { stdio: 'inherit' });
 
console.log(yarnOrNpm.hasYarn()); // false (cached)
 
yarnOrNpm.clearCache();
console.log(yarnOrNpm.hasYarn()); // true

CLI

yarn-or-npm <command>
# Can also use `yon` shorthand 
yon <command>

Package

Modules with bin files can be called directly in package.json scripts:

{
  "devDependencies": {
    ...
    "yarn-or-npm": "^1.0.0"
  },
  "scripts": {
    "compile": "babel src --out-dir dist",
    "lint": "eslint .",
    "prepublish": "yarn-or-npm run lint && yarn-or-npm run compile"
  }
}

Readme

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Install

npm i yarn-or-npm

Weekly Downloads

154,458

Version

3.0.1

License

MIT

Unpacked Size

5.33 kB

Total Files

7

Last publish

Collaborators

  • camacho