Improve Validation for Required Console Arguments

Overview

This update enhances the behavior of Artisan commands when prompting for missing required arguments. It ensures that input values consisting solely of whitespace (e.g. " ") are treated as empty, prompting the user again instead of accepting an invalid value.

Problem

Previously, when prompting for a required argument, the validation logic used:

validate: fn($value) => empty($value) ? "The {$argument->getName()} is required." : null,

This means that if a user entered only spaces, the input would pass validation because empty(" ") is false. As a result, commands could proceed with meaningless argument values.

Solution

The validation was updated to use trim() before checking for emptiness:

validate: fn($value) => empty(trim($value)) ? "The {$argument->getName()} is required." : null,

This ensures that inputs like " " are treated as empty and the user is prompted again with a proper message.

Example

Before

What is the name?
> [user enters only spaces]
# Accepted silently and assigned as a valid value.

After

What is the name?
> [user enters only spaces]
The name is required.
What is the name?
> [user enters valid string]