htdocs/lib/GitCommand.class.php

   1 <?php
   2 /* GitCommand.class.php - phpgitweb
   3  * Copyright (C) 2011-2012  Philipp Kreil (pk910)
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 class GitCommand {
  20         private static $git = null;
  21         private static $counter = 0;
  22
  23         private static function command_header($git_path = null) {
  24                 if(!self::$git) {
  25                         //find git executable
  26                         if(GitConfig::GIT_EXEC)
  27                                 self::$git = GitConfig::GIT_EXEC;
  28                         else
  29                                 self::$git = str_replace(array("\n", "\r"), array("", ""), `which git`);
  30                         if(!self::$git) {
  31                                 trigger_error("Can not find git executable.", E_USER_ERROR);
  32                                 self::$git = "git";
  33                         }
  34                 }
  35                 $command = self::$git;
  36                 if($git_path)
  37                         $command .= " --git-dir=".$git_path;
  38                 return $command;
  39         }
  40
  41         private static function execute($command) {
  42                 $result = array();
  43                 exec($command, $result);
  44                 self::$counter++;
  45                 return implode("\n", $result);
  46         }
  47
  48         public static function core_version() {
  49                 $command = self::command_header();
  50                 if(!$command)
  51                         return null;
  52                 $command .= " --version";
  53                 $version = self::execute($command);
  54                 preg_match("/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/i", $version, $result);
  55                 return $result[0];
  56         }
  57
  58         public static function last_activity($git_path, $ref = null) {
  59                 $command = self::command_header($git_path);
  60                 if(!$command)
  61                         return null;
  62                 $command .= " for-each-ref --format=%\(committer\) --sort=-committerdate --count=1";
  63                 if($ref)
  64                         $command .= " ".$ref;
  65                 $age = self::execute($command);
  66                 preg_match("/[0-9]{9,}/i", $age, $result);
  67                 return $result[0];
  68         }
  69
  70         private static function parse_commit($commit_data) {
  71                 $commit = array();
  72                 $rev_lines = explode("\n", str_replace("\r", "", $commit_data));
  73                 $commit['id'] = $rev_lines[0];
  74                 foreach($rev_lines as $rev_line) {
  75                         if(substr($rev_line, 0, 4) == "    ") {
  76                                 if(array_key_exists('text', $commit))
  77                                         $commit['text'] .= "\n";
  78                                 else
  79                                         $commit['text'] = '';
  80                                 $commit['text'] .= substr($rev_line, 4);
  81                         } else {
  82                                 $opt = explode(" ", $rev_line, 2);
  83                                 if($opt[0] == "tree")
  84                                         $commit['tree'] = $opt[1];
  85                                 else if($opt[0] == "parent")
  86                                         $commit['parent'][] = $opt[1];
  87                                 else if($opt[0] == "author") {
  88                                         preg_match('/(.*) <([^>]*)> ([0-9]*) [+-0-9]*/i', $opt[1], $matches);
  89                                         $commit['author'] = $matches[1];
  90                                         $commit['author_mail'] = $matches[2];
  91                                         $commit['author_time'] = $matches[3];
  92                                 } else if($opt[0] == "committer") {
  93                                         preg_match('/(.*) <([^>]*)> ([0-9]*) [+-0-9]*/i', $opt[1], $matches);
  94                                         $commit['committer'] = $matches[1];
  95                                         $commit['committer_mail'] = $matches[2];
  96                                         $commit['committer_time'] = $matches[3];
  97                                 }
  98                         }
  99                 }
 100                 return $commit;
 101         }
 102
 103         public static function get_commits($git_path, $head, $maxcount, $skip, $file = null) {
 104                 $command = self::command_header($git_path);
 105                 if(!$command)
 106                         return null;
 107                 $command .= " rev-list --header --max-count=".$maxcount." --skip=".$skip." ".($head ? $head : "--all")." --";
 108                 if($file)
 109                         $command .= " ".$file;
 110                 $commit_list = self::execute($command);
 111                 $commits = array();
 112                 foreach(explode("\000", $commit_list) as $commit) {
 113                         if($commit)
 114                                 $commits[] = self::parse_commit($commit);
 115                 }
 116                 return $commits;
 117         }
 118
 119 }