whiptail menu for phing

MenuPhingTask.php

<?php

/**
 * usage:
 * example 1
    <taskdef name="menu" classname="MenuPhingTask" />
    <menu title="select enviropment" choices="dev,staging,hotfix,live" />
    <property name="build.env" value="${menu.result}" override="true" />
 *
 * example 2
    <menu title="Do you really whant to deploy?" choices="No,Yes" />
    <if>
        <not>
            <equals arg1="${menu.result}" arg2="Yes" />
        </not>
        <then>
            <fail message="cancellation deploy" />
        </then>
    </if>
 *
 */

/**
 * @since 17.04.15 15:37
 * @author Arsen Abdusalamov
 */
class MenuPhingTask extends Task
{

    protected $title;
    protected $choices;

    function setTitle($title)
    {
        $this->title = $title;
        return $this;
    }

    function setChoices($choices)
    {
        $this->choices = explode(',', $choices);
        return $this;
    }

    public function main()
    {
        $descriptorSpec = array(
            STDIN,
            STDOUT,
            array("pipe", "w"),
        );
        $rawChoices = implode('" "" "', $this->choices);
        $fullCommand = sprintf('whiptail --title "%1$s" --noitem --menu "%1$s" 14 40 %2$d "%3$s" ""', $this->title, count($this->choices), $rawChoices);
        echo $fullCommand . PHP_EOL;
// open the child
        $proc = proc_open($fullCommand, $descriptorSpec, $pipes, getcwd());
// set all streams to non blocking mode
        foreach ($descriptorSpec as $key => $ds) {
            if (is_array($ds)) {
                stream_set_blocking($pipes[$key], 0);
            } else {
                stream_set_blocking($ds, 0);
            }
        }
        if (is_resource($proc)) {
            // Loop while running
            while (true) {
                if (false !== $status = proc_get_status($proc)) {
                    if ($status['running'] === false) {
                        $output = stream_get_contents($pipes[2]);
                        $exitCode = $status['exitcode'];
                        fclose($pipes[2]);
                        break;
                    }
                } else {
                    throw new Exception('Could not get proc status');
                }
            }
        } else {
            throw new Exception('Cannot execute child process');
        }

        $this->project->setProperty('menu.result', $output);
    }

}