1: <?php
  2: /**
  3:  * Git directory class that stores information about the files in a single
  4:  * directory in the repository.
  5:  *
  6:  * Copyright 2008-2012 Horde LLC (http://www.horde.org/)
  7:  *
  8:  * See the enclosed file COPYING for license information (LGPL). If you
  9:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
 10:  *
 11:  * @author  Chuck Hagenbuch <chuck@horde.org>
 12:  * @author  Michael Slusarz <slusarz@horde.org>
 13:  * @author  Jan Schneider <jan@horde.org>
 14:  * @package Vcs
 15:  */
 16: class Horde_Vcs_Directory_Git extends Horde_Vcs_Directory_Base
 17: {
 18:     /**
 19:      * The current branch.
 20:      *
 21:      * @var string
 22:      */
 23:     protected $_branch;
 24: 
 25:     /**
 26:      * Constructor.
 27:      *
 28:      * @todo Throw exception if not a valid directory (ls-tree doesn't really
 29:      *       list directory contents, but all objects matching a pattern, so it
 30:      *       returns an empty list when used with non-existant directories.
 31:      *
 32:      * @param Horde_Vcs_Base $rep  A repository object.
 33:      * @param string $dn           Path to the directory.
 34:      * @param array $opts          Any additional options:
 35:      *                             - 'rev': (string) Generate directory list for
 36:      *                               a certain branch or revision.
 37:      *
 38:      * @throws Horde_Vcs_Exception
 39:      */
 40:     public function __construct(Horde_Vcs_Base $rep, $dn, $opts = array())
 41:     {
 42:         parent::__construct($rep, $dn, $opts);
 43: 
 44:         $this->_branch = empty($opts['rev'])
 45:             ? $rep->getDefaultBranch()
 46:             : $opts['rev'];
 47: 
 48:         // @TODO See if we have a valid cache of the tree at this revision
 49: 
 50:         $dir = $this->_dirName;
 51:         if (substr($dir, 0, 1) == '/') {
 52:             $dir = (string)substr($dir, 1);
 53:         }
 54:         if (strlen($dir) && substr($dir, -1) != '/') {
 55:             $dir .= '/';
 56:         }
 57: 
 58:         list($stream, $result) = $rep->runCommand(
 59:             'ls-tree --full-name ' . escapeshellarg($this->_branch)
 60:             . ' ' . escapeshellarg($dir));
 61: 
 62:         /* Create two arrays - one of all the files, and the other of all the
 63:          * dirs. */
 64:         while (!feof($result)) {
 65:             $line = rtrim(fgets($result));
 66:             if (!strlen($line)) {
 67:                 continue;
 68:             }
 69: 
 70:             list(, $type, , $file) = preg_split('/\s+/', $line, -1,
 71:                                                 PREG_SPLIT_NO_EMPTY);
 72:             $file = preg_replace('/\\\\(\d+)/e', 'chr(0$1)', $file);
 73:             $file = str_replace(array('\\t', '\\n', '\\\\'),
 74:                                 array("\t", "\n", '\\'),
 75:                                 $file);
 76:             $file = trim($file, '"');
 77:             if ($type == 'tree') {
 78:                 $this->_dirs[] = basename($file);
 79:             } else {
 80:                 $this->_files[] = $rep->getFile(
 81:                     $file,
 82:                     array('branch' => $this->_branch));
 83:             }
 84:         }
 85:         fclose($result);
 86:         proc_close($stream);
 87:     }
 88: 
 89:     /**
 90:      * Returns a list of all branches in this directory.
 91:      *
 92:      * @return array  A branch list.
 93:      */
 94:     public function getBranches()
 95:     {
 96:         $blist = array_keys($this->_rep->getBranchList());
 97:         if (!in_array($this->_branch, $blist)) {
 98:             $blist[] = $this->_branch;
 99:         }
100:         return $blist;
101:     }
102: }