1: <?php
  2: /**
  3:  * Git log class.
  4:  *
  5:  * Copyright 2008-2012 Horde LLC (http://www.horde.org/)
  6:  *
  7:  * See the enclosed file COPYING for license information (LGPL). If you
  8:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
  9:  *
 10:  * @author  Chuck Hagenbuch <chuck@horde.org>
 11:  * @author  Michael Slusarz <slusarz@horde.org>
 12:  * @package Vcs
 13:  */
 14: class Horde_Vcs_Log_Git extends Horde_Vcs_Log_Base
 15: {
 16:     /**
 17:      * @var string
 18:      */
 19:     protected $_parent = null;
 20: 
 21:     protected function _init()
 22:     {
 23:         /* Get diff statistics. */
 24:         $stats = array();
 25:         list($resource, $stream) = $this->_rep->runCommand('diff-tree --root --numstat ' . escapeshellarg($this->_rev));
 26: 
 27:         // Skip the first entry (it is the revision number)
 28:         fgets($stream);
 29:         while (!feof($stream) && $line = trim(fgets($stream))) {
 30:             $tmp = explode("\t", $line);
 31:             $stats[$tmp[2]] = array_slice($tmp, 0, 2);
 32:         }
 33:         fclose($stream);
 34:         proc_close($resource);
 35: 
 36:         // @TODO use Commit, CommitDate, and Merge properties
 37:         $cmd = 'whatchanged -m --no-color --pretty=format:"%H%x00%P%x00%an <%ae>%x00%at%x00%d%x00%s%x00%b%n%x00" --no-abbrev -n 1 ' . escapeshellarg($this->_rev);
 38:         list($resource, $pipe) = $this->_rep->runCommand($cmd);
 39: 
 40:         $log = '';
 41:         while (!feof($pipe) && ($line = fgets($pipe)) && $line != "\0\n") {
 42:             $log .= $line;
 43:         }
 44: 
 45:         $fields = explode("\0", substr($log, 0, -1));
 46:         if ($this->_rev != $fields[0]) {
 47:             throw new Horde_Vcs_Exception(
 48:                 'Expected ' . $this->_rev . ', got ' . $fields[0]);
 49:         }
 50: 
 51:         $this->_parent = $fields[1];
 52:         $this->_author = $fields[2];
 53:         $this->_date = $fields[3];
 54:         if ($fields[4]) {
 55:             $value = substr($fields[4], 1, -1);
 56:             foreach (explode(',', $value) as $val) {
 57:                 $val = trim($val);
 58:                 if (strpos($val, 'refs/tags/') === 0) {
 59:                     $this->_tags[] = substr($val, 10);
 60:                 }
 61:             }
 62:             if (!empty($this->_tags)) {
 63:                 sort($this->_tags);
 64:             }
 65:         }
 66:         $this->_log = trim($fields[5] . "\n\n" . $fields[6]);
 67: 
 68:         // Build list of files in this revision. The format of these lines is
 69:         // documented in the git diff-tree documentation:
 70:         // http://www.kernel.org/pub/software/scm/git/docs/git-diff-tree.html
 71:         // @TODO: More than 1 parent? For now, stop after the first parent.
 72:         while (!feof($pipe) && $line = fgets($pipe)) {
 73:             if ($line == "\n") {
 74:                 break;
 75:             }
 76:             if (!preg_match('/^:(\d+) (\d+) (\w+) (\w+) (.+)\t(.+)(\t(.+))?/', $line, $matches)) {
 77:                 throw new Horde_Vcs_Exception('Unknown log line format: ' . $line);
 78:             }
 79: 
 80:             $statinfo = isset($stats[$matches[6]])
 81:                 ? array('added' => $stats[$matches[6]][0], 'deleted' => $stats[$matches[6]][1])
 82:                 : array();
 83: 
 84:             $this->_files[$matches[6]] = array_merge(array(
 85:                 'srcMode' => $matches[1],
 86:                 'dstMode' => $matches[2],
 87:                 'srcSha1' => $matches[3],
 88:                 'dstSha1' => $matches[4],
 89:                 'status' => $matches[5],
 90:                 'srcPath' => $matches[6],
 91:                 'dstPath' => isset($matches[7]) ? $matches[7] : ''
 92:             ), $statinfo);
 93:         }
 94: 
 95:         fclose($pipe);
 96:         proc_close($resource);
 97: 
 98:         $this->_setSymbolicBranches();
 99:         $this->_branch = $this->_file->getBranch($this->_rev);
100:     }
101: 
102:     /**
103:      * TODO
104:      */
105:     public function getHashForPath($path)
106:     {
107:         $this->_ensureInitialized();
108:         return $this->_files[$path]['dstSha1'];
109:     }
110: 
111:     /**
112:      * TODO
113:      */
114:     public function getParent()
115:     {
116:         return $this->_parent;
117:     }
118: }