Working on an artisan command that starts some concurrent processes and monitors them, I wanted to output the full command line of those processes for monitoring.

For example:

$pool = Process::pool(function (Pool $pool) {
    // commands
})->start();

while ($pool->running()->isNotEmpty()) {
    $this->table(
        ['#', 'command'],
        $pool->running()->map(function (InvokedProcess $process) {
            $commandLine = (fn () => $this->process->getCommandLine())
                ->bindTo($process, $process);

            return [$process->id(), $commandLine()];
        })->all(),
    );

    Sleep::for(1)->second();
}

$pool->wait();

This would output a table with the current commands being run for each elapsed second.

As I couldn't retrieve the command line, I needed to use the Closure bind hack to access the InvokedProcess' protected $process property and grab the command line.

This PR

• Adds the command() method both to InvokedProcess and FakeInvokedProcess to retrieve a pooled process' command line.

If this PR is accepted, I will send a PR to the master branch to add this method to the Illuminate\Contracts\Process\InvokedProcess interface.