https://github.com/egoist/yarn-install

Install dependencies using Yarn with npm fallback.
https://github.com/egoist/yarn-install

Last synced: about 2 months ago
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Install dependencies using Yarn with npm fallback.

• Host: GitHub
• URL: https://github.com/egoist/yarn-install
• Owner: egoist
• License: mit
• Created: 2016-10-28T10:52:35.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2023-01-12T09:52:21.000Z (over 1 year ago)
• Last Synced: 2024-07-26T21:58:51.402Z (about 2 months ago)
• Language: JavaScript
• Size: 464 KB
• Stars: 29
• Watchers: 3
• Forks: 4
• Open Issues: 19
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# yarn-install [![NPM version](https://img.shields.io/npm/v/yarn-install.svg?style=flat-square)](https://npmjs.com/package/yarn-install) [![NPM downloads](https://img.shields.io/npm/dm/yarn-install.svg?style=flat-square)](https://npmjs.com/package/yarn-install) [![Build Status](https://img.shields.io/circleci/project/egoist/yarn-install/master.svg?style=flat-square)](https://circleci.com/gh/egoist/yarn-install)

If command `yarn` exists it uses Yarn to install, otherwise fallbacks to npm.

> NOTE: to install packages in a directory, it's recommened to use [install-packages](https://github.com/egoist/install-packages) instead. In most cases that is a better choice.

## Install

```bash

$ npm install --save yarn-install

```

## Usage

```js

const install = require('yarn-install')

const result = install({

  deps: ['webpack', 'mocha']

})

//=> result, returned by child_process.spawnSync

```

## CLI

```bash

yarn global add yarn-install

# then you will have `yarn-install` & `yarn-remove` commands

yarn-install pokemon --dev

yarn-install yo --global

yarn-remove xo

# don't forget that `yarn-install` with dependencies is always `--save` by default.

yarn-install help

yarn-remove help

```

## API

### install([options])

#### options

##### deps

Type: `array`

An array of dependencies to install, you can omit it to install dependencies in `package.json`. If `dependencies` is present, it defaults to `--save` mode.

```js

install({

  deps: ['ava', 'koa']

})

```

##### cwd

Type: `string`

The directory to run the command.

##### registry

Type: `string`  

Specfic a custom npm registry to use.

##### dev

Type: `boolean`

Use `--dev` for Yarn and `--save-dev` for npm.

##### global

Type: `boolean`

Install globally, stands for `npm --global` or `yarn global`.

##### remove

Type: `boolean`


Default: `undefined`

The reversed behavior to `install`, ie. `yarn remove` and `npm uninstall`

##### production

Type: `boolean`


Default: `undefined`

Only install `dependencies` in `package.json`.

##### respectNpm5

Type: `boolean`


Default: `undefined`

Use npm if it's >= npm5.

### install.getPm([options])

Get the package manager that will be used to install.

#### options

##### respectNpm5

```js

// Given you have yarn & npm 4 installed

const pm = install.getPm()

//=> yarn

// Given you have yarn & npm 5 installed

const pm = install.getPm()

//=> yarn

// Given you have yarn & npm 5 installed

const pm = install.getPm({ respectNpm5: true })

//=> npm

```

## Contributing

1. Fork it!

2. Create your feature branch: `git checkout -b my-new-feature`

3. Commit your changes: `git commit -am 'Add some feature'`

4. Push to the branch: `git push origin my-new-feature`

5. Submit a pull request :D

## License

[MIT](https://egoist.mit-license.org/) © [EGOIST](https://github.com/egoist)