<?php
/**
  @author  Alexander 'E-Razor' Krause <alexander.krause@erazor-zone.de>
  @url     http://wiki.erazor-zone.de/wiki:projects:php:dokuwiki:plugins:darcs
  @date    2006.03.19
*/
class Darcs_Repository {
  var $patch_list=array();
  var $patch_count=0;
  var $darcs_bin='darcs';
  var $last_ec;
  var $last_cmd;
  var $repos_dir;
  var $stdout=array();
  
  function set_repository($path) {
    if (!is_dir($path)) {
      $this->last_ec=-1;
      return -1;
    }
    $this->repos_dir=$path;
  }
  
  function get_patches() {
    $retval=0;
    $this->stdout=array();
    /*
    $ darcs pull --dry-run --all -quiet
    0:Would pull the following changes:
    1:Sat Aug 27 17:48:13 UTC 2005  Andreas Gohr <andi@splitbrain.org>
    2:  * index lookup function added
    4:  description
    5:
    6:Making no changes:  this is a dry run.
    */
    chdir($this->repos_dir);
    $this->last_cmd=$this->darcs_bin.' pull --dry-run --all --quiet 2>&1';
    exec($this->last_cmd,&$this->stdout,&$this->retval);
    reset($this->stdout);
    next($this->stdout);
    $this->patch_count=0;
    $this->patch_list=array();
 
    $stdoutStr=implode("\n",$this->stdout);
    $myRegEx='/((\w+ \w+ [ 0-9]{1,2} [0-9]{2}:[0-9]{2}:[0-9]{2} \w{2,4} [0-9]{4})  (.+)\n'.
             '(  \* (.+)\n)?'.
	     '(  .+(\n  .+)*)?)+/';

    preg_match_all($myRegEx,$stdoutStr,$found,PREG_SET_ORDER);
    foreach($found as $item) {
      $cPatch=&$this->patch_list[$this->patch_count];
      $cPatch['date']=$item[2];
      $cPatch['author']=$item[3];
      $cPatch['name']=$item[5];
      $cPatch['description']=$item[6];
      $this->patch_count++;
    }
    return $this->retval;
  }

  function apply_patches() {
    $this->stdout=array();

    chdir($this->repos_dir);
    $this->last_cmd=$this->darcs_bin.' pull --all --quiet 2>&1';
    exec($this->last_cmd,&$this->stdout,&$this->retval);
    return $this->retval;
  }

  function darcs_check($options='') {
    $this->stdout=array();
    chdir($this->repos_dir);
    $this->last_cmd=$this->darcs_bin.' check  2>&1';
    exec($this->last_cmd,&$this->stdout,&$this->retval);
    return $this->retval;
  }
  
  function darcs_get($options='') {
    $this->stdout=array();
    chdir($this->repos_dir);
    $this->last_cmd=$this->darcs_bin.' get '.$options.'  2>&1';
    exec($this->last_cmd,&$this->stdout,&$this->retval);
    return $this->retval;
  }

}