6.0.0 • Published 2 years ago

@tunnckocore/execa v6.0.0

Weekly downloads
615
License
MPL-2.0
Repository
github
Last release
2 years ago

@tunnckocore/execa npm version License Libera Manifesto

Thin layer on top of execa that allows executing multiple commands in parallel or in sequence with control for concurrency

Please consider following this project's author, Charlike Mike Reagent, and :star: the project to show your :heart: and support.

Code style CircleCI linux build CodeCov coverage status Renovate App Status Make A Pull Request Time Since Last Commit

If you have any how-to kind of questions, please read the Contributing Guide and Code of Conduct documents. For bugs reports and feature requests, please create an issue or ping @tunnckoCore at Twitter.

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Project is semantically versioned & automatically released from GitHub Actions with Lerna.

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Any legal or licensing questions, like private or commerical usetunnckocore_legal
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Table of Contents

(TOC generated by verb using markdown-toc)

Install

This project requires Node.js >=10.13 (see Support & Release Policy). Install it using yarn or npm. We highly recommend to use Yarn when you think to contribute to this project.

$ yarn add @tunnckocore/execa

API

Generated using jest-runner-docs.

.exec

Uses execa, { execaCommand } method. As stated there, think of it as mix of child_process's .execFile and .spawn. It is pretty similar to the .shell method too, but only visually because it does not uses the system's shell, meaning it does not have access to the system's environment variables. You also can control concurrency by passing options.concurrency option. For example, pass concurrency: 1 to run in series instead of in parallel which is the default behavior.

Signature

function(cmds, options)

Params

  • cmds {Array<string>} - a string or array of string commands to execute in parallel or series
  • [options] {object} - directly passed to execa and so to child_process
  • returns {Promise} - resolved or rejected promises

It also can accept array of multiple strings of commands that will be executed in series or in parallel (default).

Examples

import { exec } from '@tunnckocore/execa';
// or
// const { exec } = require('@tunnckocore/execa');

async function main() {
	await exec('echo "hello world"', { stdio: 'inherit' });

	// executes in series (because `concurrency` option is set to `1`)
	await exec(
		[
			'prettier-eslint --write foobar.js',
			'eslint --format codeframe foobar.js --fix',
		],
		{ stdio: 'inherit', preferLocal: true, concurrency: 1 },
	);
}

main();

.shell

Similar to exec, but also can access the system's environment variables from the command.

Signature

function(cmds, options)

Params

  • cmds {Array<string>} - a commands to execute in parallel or series
  • options {object} - directly passed to execa
  • returns {Promise} - resolved or rejected promises

Examples

import { shell } from '@tunnckocore/execa';
// or
// const { shell } = require('@tunnckocore/execa');

async function main() {
	// executes in series
	await shell(['echo unicorns', 'echo "foo-$HOME-bar"', 'echo dragons'], {
		stdio: 'inherit',
	});

	// exits with code 3
	try {
		await shell(['exit 3', 'echo nah']);
	} catch (er) {
		console.error(er);
		// => {
		//  message: 'Command failed: /bin/sh -c exit 3'
		//  killed: false,
		//  code: 3,
		//  signal: null,
		//  cmd: '/bin/sh -c exit 3',
		//  stdout: '',
		//  stderr: '',
		//  timedOut: false
		// }
	}
}

main();

.execa

All execa named exports, see its documentation. Think of this as a mix of child_process.execFile() and child_process.spawn().

Signature

function(file, args, options)

Params

  • file {string} - executable to run
  • args {Array<string>} - arguments / flags to be passed to file
  • options {object} - optional options, passed to child_process's methods

Examples

import { execa, execaCommand, execaNode } from '@tunnckocore/execa';
// or
// const { execa } = require('@tunnckocore/execa');

async function main() {
	await execa('npm', ['install', '--save-dev', 'react'], { stdio: 'inherit' });
}

main();

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Contributing

Guides and Community

Please read the Contributing Guide and Code of Conduct documents for advices.

For bug reports and feature requests, please join our community forum and open a thread there with prefixing the title of the thread with the name of the project if there's no separate channel for it.

Consider reading the Support and Release Policy guide if you are interested in what are the supported Node.js versions and how we proceed. In short, we support latest two even-numbered Node.js release lines.

Support the project

Become a Partner or Sponsor? :dollar: Check the OpenSource Commision (tier). :tada: You can get your company logo, link & name on this file. It's also rendered on package's page in npmjs.com and yarnpkg.com sites too! :rocket:

Not financial support? Okey! Pull requests, stars and all kind of contributions are always welcome. :sparkles:

Contributors

This project follows the all-contributors specification. Contributions of any kind are welcome!

Thanks goes to these wonderful people (emoji key), consider showing your support to them:

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License

Copyright (c) 2017-present, Charlike Mike Reagent <opensource@tunnckocore.com> & contributors. Released under the MPL-2.0 License.

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