find-root

recursively find the closest package.json


usage

Say you want to check if the directory name of a project matches its module name in package.json:

js
const path = require('path')
const findRoot = require('find-root')

// from a starting directory, recursively search for the nearest
// directory containing package.json
const root = findRoot('/Users/jsdnxx/Code/find-root/tests')
// => '/Users/jsdnxx/Code/find-root'

const dirname = path.basename(root)
console.log('is it the same?')
console.log(dirname === require(path.join(root, 'package.json')).name)

You can also pass in a custom check function (by default, it checks for the existence of package.json in a directory). In this example, we traverse up to find the root of a git repo:

js
const fs = require('fs')

const gitRoot = findRoot('/Users/jsdnxx/Code/find-root/tests', function (dir) {
  return fs.existsSync(path.resolve(dir, '.git'))
})

api

findRoot: (startingPath : string, check?: (dir: string) => boolean) => string

Returns the path for the nearest directory to startingPath containing a package.json file, eg /foo/module.

If check is provided, returns the path for the closest parent directory where check returns true.

Throws an error if no package.json is found at any level in the startingPath.

installation

sh
> npm install find-root

running the tests

From package root:

sh
> npm install
> npm test

contributors

• jsdnxx

license

MIT. (c) 2017 jsdnxx