mirror of
https://github.com/actions/setup-python.git
synced 2024-12-29 10:50:26 +01:00
122 lines
3.4 KiB
Markdown
122 lines
3.4 KiB
Markdown
<p align="center">
|
|
<img width="250" src="/yargs-logo.png">
|
|
</p>
|
|
<h1 align="center"> Yargs </h1>
|
|
<p align="center">
|
|
<b >Yargs be a node.js library fer hearties tryin' ter parse optstrings</b>
|
|
</p>
|
|
<br>
|
|
|
|
[![Build Status][travis-image]][travis-url]
|
|
[![Coverage Status][coveralls-image]][coveralls-url]
|
|
[![NPM version][npm-image]][npm-url]
|
|
[![js-standard-style][standard-image]][standard-url]
|
|
[![Conventional Commits][conventional-commits-image]][conventional-commits-url]
|
|
[![Slack][slack-image]][slack-url]
|
|
|
|
## Description :
|
|
Yargs helps you build interactive command line tools, by parsing arguments and generating an elegant user interface.
|
|
|
|
It gives you:
|
|
|
|
* commands and (grouped) options (`my-program.js serve --port=5000`).
|
|
* a dynamically generated help menu based on your arguments.
|
|
|
|
> <img width="400" src="/screen.png">
|
|
|
|
* bash-completion shortcuts for commands and options.
|
|
* and [tons more](/docs/api.md).
|
|
|
|
## Installation
|
|
|
|
Stable version:
|
|
```bash
|
|
npm i yargs --save
|
|
```
|
|
|
|
Bleeding edge version with the most recent features:
|
|
```bash
|
|
npm i yargs@next --save
|
|
```
|
|
|
|
## Usage :
|
|
|
|
### Simple Example
|
|
|
|
````javascript
|
|
#!/usr/bin/env node
|
|
const argv = require('yargs').argv
|
|
|
|
if (argv.ships > 3 && argv.distance < 53.5) {
|
|
console.log('Plunder more riffiwobbles!')
|
|
} else {
|
|
console.log('Retreat from the xupptumblers!')
|
|
}
|
|
````
|
|
|
|
```bash
|
|
$ ./plunder.js --ships=4 --distance=22
|
|
Plunder more riffiwobbles!
|
|
|
|
$ ./plunder.js --ships 12 --distance 98.7
|
|
Retreat from the xupptumblers!
|
|
```
|
|
|
|
### Complex Example
|
|
|
|
```javascript
|
|
#!/usr/bin/env node
|
|
require('yargs') // eslint-disable-line
|
|
.command('serve [port]', 'start the server', (yargs) => {
|
|
yargs
|
|
.positional('port', {
|
|
describe: 'port to bind on',
|
|
default: 5000
|
|
})
|
|
}, (argv) => {
|
|
if (argv.verbose) console.info(`start server on :${argv.port}`)
|
|
serve(argv.port)
|
|
})
|
|
.option('verbose', {
|
|
alias: 'v',
|
|
default: false
|
|
})
|
|
.argv
|
|
```
|
|
|
|
Run the example above with `--help` to see the help for the application.
|
|
|
|
## Community :
|
|
|
|
Having problems? want to contribute? join our [community slack](http://devtoolscommunity.herokuapp.com).
|
|
|
|
## Documentation :
|
|
|
|
### Table of Contents
|
|
|
|
* [Yargs' API](/docs/api.md)
|
|
* [Examples](/docs/examples.md)
|
|
* [Parsing Tricks](/docs/tricks.md)
|
|
* [Stop the Parser](/docs/tricks.md#stop)
|
|
* [Negating Boolean Arguments](/docs/tricks.md#negate)
|
|
* [Numbers](/docs/tricks.md#numbers)
|
|
* [Arrays](/docs/tricks.md#arrays)
|
|
* [Objects](/docs/tricks.md#objects)
|
|
* [Advanced Topics](/docs/advanced.md)
|
|
* [Composing Your App Using Commands](/docs/advanced.md#commands)
|
|
* [Building Configurable CLI Apps](/docs/advanced.md#configuration)
|
|
* [Customizing Yargs' Parser](/docs/advanced.md#customizing)
|
|
* [Contributing](/contributing.md)
|
|
|
|
[travis-url]: https://travis-ci.org/yargs/yargs
|
|
[travis-image]: https://img.shields.io/travis/yargs/yargs/master.svg
|
|
[coveralls-url]: https://coveralls.io/github/yargs/yargs
|
|
[coveralls-image]: https://img.shields.io/coveralls/yargs/yargs.svg
|
|
[npm-url]: https://www.npmjs.com/package/yargs
|
|
[npm-image]: https://img.shields.io/npm/v/yargs.svg
|
|
[standard-image]: https://img.shields.io/badge/code%20style-standard-brightgreen.svg
|
|
[standard-url]: http://standardjs.com/
|
|
[conventional-commits-image]: https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg
|
|
[conventional-commits-url]: https://conventionalcommits.org/
|
|
[slack-image]: http://devtoolscommunity.herokuapp.com/badge.svg
|
|
[slack-url]: http://devtoolscommunity.herokuapp.com
|