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

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

    function postCommit($msg, $files, $actions) {
        return true;
    }
    function checkLineBreaks($filename, $fp)
    {
        $pipes = null;
        $contents = stream_get_contents($fp);
        if (preg_match("/\r+/", $contents)) {
            return "Use Unix line endings only in $filename";
        }
        
        return true;
    }
}