This is an experimental hack to add Symfony BASH auto complete to Composer via a plugin. It's a pretty slimy hack, but it works without editing Composer's code.

Installation

Run composer require baisam/artisan-bash-completion-plugin dev-master

Add a completion class to App\Console\Kernel :

# The Artisan commands provided by your application.
protected $commands = [
        \BaiSam\Component\Symfony\Console\BashCompletion\ArtisanCompletionCommand::class,
    ];

Explanation

This hacky plugin injects an additional command into the Artisan application at runtime. When the plugin in this package is activated and the command line starts with php artisan _completion.