Handling Signals in Laravel Console Commands. Laravel Artisan commands can now handle signals through Symfony's signal handling features. Learn more about how to handle signals in Laravel console commands. Update with console signal handling feature inherited through a console signals.
Earlier this month the Laravel documentation got an update with console signal handling feature inherited through a console signals feature added to the Symfony console component in v5.2:
From the Symfony blog post introducing console signals, it explains the background behind what a signal is as well as how you can respond to them in console commands:
Signals__ are an inter-process communication mechanism used by console commands. A signal is an asynchronous notification sent to a process (or to a specific thread within the same process) in order to notify it of an event that occurred. For example, when you press Ctrl + C in a command, the operating system sends the SIGINT signal to it.
Symfony 5.2 introduces support for responding to signals in your commands (e.g. to perform some cleanup tasks when quitting a command). If you want to handle some signals in a command, implement the new SignalableCommandInterface.
Handling signals could be helpful if you need to shut down or restart a service in response to a console command. Any cleanup required should be handled through signal when quitting a command.
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