@ionic/utils-process

What is @ionic/utils-process?

@ionic/utils-process is a utility library for handling various process-related tasks in Node.js. It provides functions for managing subprocesses, handling signals, and other process-related utilities.

What are @ionic/utils-process's main functionalities?

spawn

The `spawn` function is used to create a new subprocess. In this example, it runs the `ls -la` command and logs the result.

const { spawn } = require('@ionic/utils-process');

async function runCommand() {
  const result = await spawn('ls', ['-la']);
  console.log(result);
}

runCommand();

onExit

The `onExit` function is used to handle the exit event of a subprocess. In this example, it monitors a subprocess running a simple Node.js script and logs a message when the process exits.

const { onExit } = require('@ionic/utils-process');

async function monitorProcess() {
  const child = require('child_process').spawn('node', ['-e', 'console.log("Hello World")']);
  await onExit(child);
  console.log('Process exited');
}

monitorProcess();

killProcessTree

The `killProcessTree` function is used to terminate a process and all of its child processes. In this example, it terminates the process with the given PID and logs a message.

const { killProcessTree } = require('@ionic/utils-process');

async function terminateProcess(pid) {
  await killProcessTree(pid);
  console.log(`Process ${pid} and its children have been terminated`);
}

terminateProcess(12345);

Other packages similar to @ionic/utils-process

execa

Execa is a modern alternative to Node.js's child_process. It provides a more user-friendly API for running external processes and handling their output. Compared to @ionic/utils-process, Execa offers more features and better error handling.

cross-spawn

Cross-spawn is a cross-platform solution for spawning child processes. It addresses issues with Node.js's built-in child_process module, especially on Windows. While @ionic/utils-process focuses on additional utilities, cross-spawn is specifically designed to handle cross-platform compatibility.

tree-kill

Tree-kill is a utility for killing a process and all its child processes. It is similar to the `killProcessTree` function in @ionic/utils-process but is a standalone package focused solely on this functionality.

README

@ionic/utils-process