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70 lines
1.6 KiB
70 lines
1.6 KiB
3 years ago
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# find-root
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recursively find the closest package.json
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[](https://travis-ci.org/js-n/find-root)
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## usage
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Say you want to check if the directory name of a project matches its
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module name in package.json:
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```js
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const path = require('path')
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const findRoot = require('find-root')
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// from a starting directory, recursively search for the nearest
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// directory containing package.json
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const root = findRoot('/Users/jsdnxx/Code/find-root/tests')
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// => '/Users/jsdnxx/Code/find-root'
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const dirname = path.basename(root)
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console.log('is it the same?')
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console.log(dirname === require(path.join(root, 'package.json')).name)
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```
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You can also pass in a custom check function (by default, it checks for the
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existence of `package.json` in a directory). In this example, we traverse up
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to find the root of a git repo:
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```js
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const fs = require('fs')
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const gitRoot = findRoot('/Users/jsdnxx/Code/find-root/tests', function (dir) {
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return fs.existsSync(path.resolve(dir, '.git'))
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})
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```
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## api
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### `findRoot: (startingPath : string, check?: (dir: string) => boolean) => string`
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Returns the path for the nearest directory to `startingPath` containing
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a `package.json` file, eg `/foo/module`.
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If `check` is provided, returns the path for the closest parent directory
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where `check` returns true.
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Throws an error if no `package.json` is found at any level in the
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`startingPath`.
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## installation
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```sh
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> npm install find-root
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```
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## running the tests
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From package root:
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```sh
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> npm install
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> npm test
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```
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## contributors
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- jsdnxx
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## license
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MIT. (c) 2017 jsdnxx
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