charlike
Version:
Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options
65 lines (56 loc) • 1.85 kB
JavaScript
/**
* @module spawn-posix
* @author Toru Nagashima
* @copyright 2015 Toru Nagashima. All rights reserved.
* See LICENSE file in root directory for full license.
*/
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const crossSpawn = require("cross-spawn")
const getDescendentProcessInfo = require("ps-tree")
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
/**
* Kills the new process and its sub processes.
* @this ChildProcess
* @returns {void}
*/
function kill() {
getDescendentProcessInfo(this.pid, (err, descendent) => {
if (err) {
return
}
descendent.forEach(child => {
try {
process.kill(child.PID)
}
catch (_err) {
// ignore.
}
})
})
}
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
/**
* Launches a new process with the given command.
* This is almost same as `child_process.spawn`.
*
* This returns a `ChildProcess` instance.
* `kill` method of the instance kills the new process and its sub processes.
*
* @param {string} command - The command to run.
* @param {string[]} args - List of string arguments.
* @param {object} options - Options.
* @returns {ChildProcess} A ChildProcess instance of new process.
* @private
*/
module.exports = function spawn(command, args, options) {
const child = crossSpawn(command, args, options)
child.kill = kill
return child
}