<?php 
require_once 'MTrack/Interface/CommitListener.php';

class MTrackCommitCheck_PhpLint implements IMTrackCommitListener 
{
  
    function vetoCommit($msg, $files, $actions, $checker)
    {
        // should only have a list of files which have been updated/added. (not deleted)
        $ret = array();
        
        if (count($files) > 30) {
            // to many files.. we can not check that amount without causing serious delays in commits
            return true;
        }
        foreach ($files as $filename) {
            $pi = pathinfo($filename);

            if ( $pi['extension'] == 'php') {
                $fp = $checker->bridge->getFileStream($filename);
                $res = $this->checkPHP($filename, $fp);
                if ($res !== true) {
                    $ret[] = $res;
                }
                $fp = null; // remove stream.
            }
          
        }
         
        return $ret ? implode("\n", $ret) : true;
    }

    function postCommit($msg, $files, $actions)
    {
        return true;
    }
    function checkPHP($filename, $fp)
    {
        $pipes = null;
        $proc = proc_open(MTrackConfig::get('tools', 'php') . " -l", array(
            0 => array('pipe', 'r'),
            1 => array('pipe', 'w'),
            2 => array('pipe', 'w')
          ), $pipes);

        // send in data
        stream_copy_to_stream($fp, $pipes[0]);
        $fp = null;
        $pipes[0] = null;

        $output = stream_get_contents($pipes[1]);
        $output .= stream_get_contents($pipes[2]);
        $st = proc_get_status($proc);
        if ($st['running']) {
          proc_terminate($proc);
          sleep(1);
          $st = proc_get_status($proc);
        }
        if ($st['exitcode'] != 0) {
          return "$filename: $output";
        }
        return true;
    }
}