Execute callbacks when child processes are spawned
npm install process-on-spawn![Tests][tests-status]
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[![MIT][license-image]](LICENSE)
Execute callbacks when child processes are spawned.
``js
'use strict';
const processOnSpawn = require('process-on-spawn');
processOnSpawn.addListener(opts => {
opts.env.CHILD_VARIABLE = 'value';
});
`
* options \<[Object]\>execPath
* \<[string]\> The command to run.args
* \<[string\[\]][string]\> Arguments of the child process.cwd
* \<[string]\> Current working directory of the child process.detached
* \<[boolean]\> The child will be prepared to run independently of its parent process.uid
* \<[number]\> The user identity to be used by the child.gid
* \<[number]\> The group identity to be used by the child.windowsVerbatimArguments
* \<[boolean]\> No quoting or escaping of arguments will be done on Windows.windowsHide
* \<[boolean]\> The subprocess console window that would normally be created on Windows systems will be hidden.
All properties except env` are read-only.
Add a listener to be called after any listeners already attached.
Insert a listener to be called before any listeners already attached.
Remove the specified listener. If the listener was added multiple times only
the first is removed.
Remove all attached listeners.
[npm-image]: https://img.shields.io/npm/v/process-on-spawn.svg
[npm-url]: https://npmjs.org/package/process-on-spawn
[tests-status]: https://github.com/cfware/process-on-spawn/workflows/Tests/badge.svg
[downloads-image]: https://img.shields.io/npm/dm/process-on-spawn.svg
[downloads-url]: https://npmjs.org/package/process-on-spawn
[license-image]: https://img.shields.io/npm/l/process-on-spawn.svg
[Object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object
[string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type
[boolean]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type
[number]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type