Output is corrupted when doing exit_code

[ruudk]

I have the following task:

#[AsTask(name: 'twig-cs-fixer')]
function twigcsfixer(
    #[AsOption(mode: InputOption::VALUE_NEGATABLE)]
    bool $fix = true,
): int {
    if ( ! fs()->exists('vendor')) {
        composer_install();
    }

    return exit_code(sprintf('vendor/bin/twig-cs-fixer %s', $fix ? 'fix' : 'check'));
}

I noticed for a long time now, that the output sometimes gets corrupted when the output is a bit longer than let's say 20 lines.

I always thought it was my new terminal Ghostty or my custom PHPStan error formatter.

But today, I noticed the same problem in PHPStorm's terminal and with another program: Twig CS Fixer.

I have the feeling this is because the stdout and stderr are writing over each other together with terminal coloring.

It doesn't always happen. Sometimes, it resolves itself after a few runs (indicating it's a timing issue).