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https://github.com/TrigenSoftware/Argue

A thin and strongly typed CLI arguments parser for Node.js.
https://github.com/TrigenSoftware/Argue

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A thin and strongly typed CLI arguments parser for Node.js.

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# argue-cli

[![ESM-only package][package]][package-url]
[![NPM version][npm]][npm-url]
[![Node version][node]][node-url]
[![Dependencies status][deps]][deps-url]
[![Install size][size]][size-url]
[![Build status][build]][build-url]
[![Coverage status][coverage]][coverage-url]

[package]: https://img.shields.io/badge/package-ESM--only-ffe536.svg
[package-url]: https://nodejs.org/api/esm.html

[npm]: https://img.shields.io/npm/v/argue-cli.svg
[npm-url]: https://www.npmjs.com/package/argue-cli

[node]: https://img.shields.io/node/v/argue-cli.svg
[node-url]: https://nodejs.org

[deps]: https://img.shields.io/librariesio/release/npm/argue-cli
[deps-url]: https://libraries.io/npm/argue-cli/tree

[size]: https://packagephobia.com/badge?p=argue-cli
[size-url]: https://packagephobia.com/result?p=argue-cli

[build]: https://img.shields.io/github/actions/workflow/status/TrigenSoftware/Argue/tests.yml?branch=master
[build-url]: https://github.com/TrigenSoftware/Argue/actions

[coverage]: https://img.shields.io/codecov/c/github/TrigenSoftware/Argue.svg
[coverage-url]: https://app.codecov.io/gh/TrigenSoftware/Argue

A thin and strongly typed CLI arguments parser for Node.js.

## Usage

1. Install

```bash
# pnpm
pnpm add argue-cli
# yarn
yarn add argue-cli
# npm
npm i argue-cli
```

2. Import in your code and use it!

```ts
import { read, end, expect, alias, option, readOptions } from 'argue-cli'

/**
* Expect and read one of the commands
*/
const command = expect(
alias('install', 'i'),
'remove'
)
let options = {}

if (command === 'install') {
/**
* Read passed options
*/
options = readOptions(
option(alias('save', 'S'), Boolean),
option(alias('saveDev', 'save-dev', 'D'), Boolean),
option('workspace', String)
)
}

/**
* Read next argument
*/
const packageName = read()

/**
* Expect end of the arguments
*/
end()

/* ... */
```

## API



Method
Description



```ts
function read(): string
```

Read next argument. Throws error if no next argument.


```ts
function end(): void
```

Expectation of the end. Throws an error if there are more arguments left.


```ts
function expect(...argRefs: ArgRef[]): string
```

Expect one of the given arguments.


```ts
function alias(name: string, ...aliases: string[]): AliasArgRef
```

Describe argument with aliases.


```ts
function option(argRef: ArgRef, type: PrimitiveConstructor): OptionReader
```

Describe option with value.


```ts
function readOptions(...optionReaders: OptionReader[]): OptionResult
```

Read options from arguments.


## TypeScript

In [API section](#API) types are described in a simplified way. Detailed example of the types you can see [here](test/argue.test-d.ts).