Way to stop listening on changes

[hadrien-toma]

Hi there, I am wondering if there is a cross-platform way to stop listening on changes. For instance, do you have an idea of how to achieve this behavior:

• In my package.json:

"scripts": {
    "onchange": "./node_modules/onchange/cli.js",
    "listen": "npm run listen:*",
    "listen:a": "npm run onchange -- \"./file_a\" -- npm run doonchange:a",
    "doonchange:a": "# do awesome things",
    "listen:b": "npm run onchange -- \"./file_b\" -- npm run doonchange:b",
    "doonchange:b": "# stop listening on file_a changes ",
}

• In my terminal:

   npm run listen
# Listening on changes until I change my `index.js` file 

PS : Really usefull/powerfull package, thank you!

[blakeembrey]

I can't think of any way beyond writing the PID to disk and reading it again later to kill the process. Not sure if something similar to that works on Windows. If there is, I can look at building it into the package, but until then I'll leave the issue open for others to comment.

[hadrien-toma]

I finally use pm2 (cross-platform) in order to wrap the onchange command, this way the package.json's script section looks like:

		"callback": "echo 'foo'",
		"listener": "onchange ./listened -- npm run callback",
		"listener:ps:c": "pm2 start --name listener.ps npm -- run listener",
		"listener:ps:d": "pm2 delete listener.ps"

This allows to stop listening onchange in a cross-platform way!

[alecarg]

While the above didn't work for me, using nodemon did:

"main": "yarn run start",

and

"scripts": {
  "start": "nodemon --exec yarn run onchange-watch",
  "onchange-watch": "onchange -- yarn run callback"
  "callback": "<something> && nodemon --exec yarn run start"
}