gistfile1.php

<?php
class Subversion extends Object
{
    static protected $_cmd_path_ = '/usr/bin/svn';
    protected $_result_;
    
    static public function config_path($cmd_path){
        self::$_cmd_path_ = $cmd_path;
    }
    static public function cmd_path(){
        return self::$_cmd_path_;
    }
    static public function exec_cmd($cmd){
        ob_start();
        passthru($cmd);
        return ob_get_clean();
    }
    
    public function exec(){
        return $this->__exec__();
    }
    protected function __exec__(){
        throw new SubversionException('method is not defined');
    }
}
class SubversionException extends Exception
{
}

class SubversionCat extends Subversion
{
    protected $_command_ = 'cat';
    protected $repos_url;
    protected $revision_no;
    
    protected function __exec__(){
        $ret = is_null($this->revision_no)? svn_cat($this->repos_url): svn_cat($this->repos_url, $this->revision_no);
        if($ret === false){
            throw new SubversionException();
        }
        return $ret;
    }
}

if(!function_exists('svn_cat')){
    function svn_cat($repos_url, $revision_no=null){
        $cmd = sprintf('%s cat %s%s',
            Subversion::cmd_path(),
            is_null($revision_no)? '': sprintf('--revision=%d ', $revision_no),
            escapeshellarg($repos_url));
        $ret = Subversion::exec_cmd($cmd);
        // TODO: errorhand
        return $ret;
    }
}

class SubversionExport extends Subversion
{
    protected $_command_ = 'export';
    protected $frompath;
    protected $topath;
    protected $working_copy = true;
    
    protected function __exec__(){
        $ret = svn_export($this->frompath, $this->topath, $this->working_copy);
        if($ret === false){
            throw new SubversionException();
        }
        return true;
    }
}

if(!function_exists('svn_export')){
    function svn_export($frompath, $topath, $working_copy=true){
        $cmd = sprintf('%s export %s %s', Subversion::cmd_path(), escapeshellarg($frompath), escapeshellarg($topath));
        $ret = Subversion::exec_cmd($cmd);
        $bool = (strpos($ret, 'Export complete.') !== false || strpos($ret, 'Exported revision') !== false);
        if($bool === false){
            throw new SubversionException();
        }
        return true;
    }
}