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

class MTrackCommitCheck_BlankLines implements IMTrackCommitListener 
{
  
    function vetoCommit($msg, $files, $actions, $checker)
    {
        // should only have a list of files which have been updated/added. (not deleted)
        $ret = array();
        if (!method_exists($checker->bridge, 'getDiffStream')) { // kludge - we should use interface....
            return true;
        }
        $fp = $checker->bridge->getDiffStream();
        $diff = stream_get_contents($fp);
        $lines = explode("\n",$contents);
        $seq = 0;
        $total = 0;
        
        // probably a CRLF fix....
        if (count($lines) > 100) {
            return;
        }
        
        foreach($lines as $l) {
            $ll = trim($l);
            if ($l != '+') {
                $seq =0;
                continue;
            }
            // got blannk line
            $seq++;
            
            if ($seq > 2) {
                return "You are adding more than 2 blank lines - please remove the new blank lines you added and try again.";
            }
        }
        
         
         
       return true;
    }

    function postCommit($msg, $files, $actions) {
        return true;
    }
    
}