https://github.com/shinnn/purs

Spawn a new process using PureScript CLI
https://github.com/shinnn/purs

child-process compiler javascript nodejs promise purescript purs wrapper

Last synced: 16 days ago
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Spawn a new process using PureScript CLI

• Host: GitHub
• URL: https://github.com/shinnn/purs
• Owner: shinnn
• License: isc
• Created: 2018-06-28T02:28:39.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-12-14T13:38:44.000Z (about 6 years ago)
• Last Synced: 2024-11-19T05:03:41.207Z (about 1 month ago)
• Topics: child-process, compiler, javascript, nodejs, promise, purescript, purs, wrapper
• Language: JavaScript
• Homepage: https://github.com/purescript-contrib/node-purescript
• Size: 45.9 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# purs

[![npm version](https://img.shields.io/npm/v/purs.svg)](https://www.npmjs.com/package/purs)

[![Build Status](https://travis-ci.com/shinnn/purs.svg?branch=master)](https://travis-ci.com/shinnn/purs)

[![Coverage Status](https://img.shields.io/coveralls/shinnn/purs.svg)](https://coveralls.io/github/shinnn/purs?branch=master)

[Spawn] a new process using [PureScript](https://github.com/purescript/purescript) CLI

```javascript

const {readFile} = require('purs').promises;

const purs = require('purs');

(async () => {

  await purs.compile(['source.purs', '--output', 'out']);

  await readFile('out/Main/index.js', 'utf8'); //=> '// Generated by purs ...'

})();

```

## Installation

[Use](https://docs.npmjs.com/cli/install) [npm](https://docs.npmjs.com/getting-started/what-is-npm).

```

npm install purs

```

Since this package contains [`purescript` npm package](https://github.com/purescript-contrib/node-purescript) in its dependency list and uses it when spawning a new process, there is no need to install [PureScript](https://github.com/purescript/purescript) separately.

## API

```javascript

const purs = require('purs');

```

### purs.help([*options*]), purs.version([*options*])

*options*: `Object` ([`execa` options](https://github.com/sindresorhus/execa#options))  

Return: `Promise`

Spawn a new `purs --help` or `purs --version` process and return a `Promise` of the command stdout as a string.

```javascript

(async () => {

  await purs.help(); //=> 'Usage: purs.bin COMMAND\n  The PureScript compiler ...'

})();

```

### purs.bundle([*args*][, *options*]), purs.compile([*args*][, *options*]), purs.docs([*args*][, *options*]), purs.hierarchy([*args*][, *options*]), purs.ide([*args*][, *options*]), purs.publish([*args*][, *options*])

*args*: `Array` (additional command-line arguments)  

*options*: `Object` (`execa` options)  

Return: [`ChildProcess`](https://nodejs.org/api/child_process.html#child_process_class_childprocess) with additional [`execa`](https://github.com/sindresorhus/execa)-specific enhancement

Spawn a new process with a `purs` subcommand corresponding to the method name and return a  [`execa` return value](https://github.com/sindresorhus/execa#execafile-arguments-options):

> a `child_process` instance, which is enhanced to also be a `Promise` for a result `Object` with `stdout` and `stderr` properties.

```javascript

(async () => {

  const result = await purs.bundle(['index.js', '--output', 'app.js']);

  /*=> {

    stdout: '',

    stderr: '',

    code: 0,

    failed: false,

    killed: false,

    signal: null,

    cmd: '/Users/example/node_modules/purescript/purs.bin bundle index.js --output app.js',

    timedOut: false

  } */

})();

```

## License

[ISC License](./LICENSE) © 2018 Shinnosuke Watanabe

[Spawn]: https://en.wikipedia.org/wiki/Spawn_(computing)