I have no way I can currently test this and I'm not sure what conventions are used in these messages currently.

Can I trust that you have tested this thoroughly?
Are there version or OS requirements that need to be considered for notify-send (needed for the PHPCS docs)?
Should the path to notify-send actually be a PHP_CodeSniffer config setting?
Anything else I should be aware of?

Hello Greg,

I have no way I can currently test this and I'm not sure what
conventions are used in these messages currently.
It shows an information message stating that all is fine when no
errors+warnings have been found, and an error message with the number
of warnings+errors if there are some.

Can I trust that you have tested this thoroughly?
It works for me for a week now.

Are there version or OS requirements that need to be considered for
notify-send (needed for the PHPCS docs)?
notify-send is standard on all linux desktops AFAIK.

Should the path to notify-send actually be a PHP_CodeSniffer config setting?
That'd be a good option, but I don't know how to do that. Could you
give me a hin?

Anything else I should be aware of?
I'd like to make e.g. the timeout configurable, but didn't know how to
pass config options. Enlighten me :)

Regards/Mit freundlichen Grüßen
Christian Weiske

-=≡ Geeking around in the name of science since 1982 ≡=-

The config stuff in PHPCS is very basic. You just go ahead and use config vars in the code and handle defaults. So something like:

$path = PHP_CodeSniffer::getConfigData('notifysend_path');
if ($path === null) {
// Try default path, or maybe throw an exception telling them to set the path.
}

Same would go for the timeout:
$timeout = PHP_CodeSniffer::getConfigData('notifysend_timeout');
if ($timeout === null) {
$timeout = 3000;
}

You set those config vars like this:
phpcs --config-set notifysend_path /path/to/notify-send
phpcs --config-set notifysend_timeout 5000

I've implemented the configuration options now.

Screenshots:

Found a linux box at work to try this one and it worked great. Thanks for the contribution.