gistfile1.aw

<?php
class Client{

    public function run(Repository $repository, $command)
    {
        $descriptors = array(0 => array("pipe", "r"), 1 => array("pipe", "w"), 2 => array("pipe", "w"));
        $process = proc_open($this->getPath() . ' ' . $command, $descriptors, $pipes, $repository->getPath());

        if (!is_resource($process)) {
            throw new \RuntimeException('Unable to execute command: ' . $command);
        }

        $stderr = stream_get_contents($pipes[2]);
        fclose($pipes[2]);

        if (!empty($stderr)) {
            throw new \RuntimeException($stderr);
        }

        $stdout = stream_get_contents($pipes[1]);
        fclose($pipes[1]);

        proc_close($process);

        return $stdout;
    }

}

$tree = "";
$output = "";
$format = 'zip';

$fs = new Filesystem;
$c = new Client;
$fs->mkdir(dirname($output));
$c->run($this, "archive --format=$format --output=$output $tree");