GITManagedWebpage.class.php

   1 <?php
   2 /*************************** GITManagedWebpage **************************
   3  * Copyright (C) 2013       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  *
  20  *  GITManagedWebpage.class.php
  21  *
  22  * Functions to manage a Website using GIT Version Control
  23  *
  24  */
  25
  26 class GITManagedWebpage {
  27     const ERROR_CRITICAL = 1;
  28
  29
  30     private $giturl;
  31     private $workdir;
  32
  33     public function __construct($giturl, $workdir = null) {
  34         if($workdir === null) {
  35             $workdir = dirname(__FILE__);
  36             if(!substr($workdir, -1) == "/")
  37                 $workdir .= "/";
  38             $workdir .= ".gitmanaged/";
  39         }
  40         else if(!substr($workdir, -1) == "/")
  41             $workdir .= "/";
  42
  43         $this->giturl = $giturl;
  44         $this->workdir = $workdir;
  45
  46         //if(!file_exists($this->workdir) || !is_dir($this->workdir)) {
  47             if(file_exists($this->workdir) && !is_dir($this->workdir)) {
  48                 $this->error(self::ERROR_CRITICAL, "local workdir (".htmlspecialchars($this->workdir).") is not a directory.");
  49                 return;
  50             }
  51             $this->setupWorkdir();
  52         //}
  53     }
  54
  55     /* private function gitcmd(...)
  56     * Execute a git command and return output
  57     */
  58     private function gitcmd() {
  59         $args = func_get_args();
  60         $argstr = "";
  61         foreach($args as $arg) {
  62             if(is_array($arg)) {
  63                 foreach($arg as $subarg) {
  64                     $argstr .= " ".escapeshellarg($subarg);
  65                 }
  66             } else
  67                 $argstr .= " ".escapeshellarg($arg);
  68         }
  69         $gitcmd = 'git '.escapeshellarg('--git-dir='.$this->workdir.'/repository').$argstr;
  70         $output = shell_exec($gitcmd);
  71         return $output;
  72     }
  73
  74     /* private function setupWorkdir()
  75     * Setup local GITManagedWebpage Work directory with git repository
  76     */
  77     private function setupWorkdir() {
  78         // check requirements
  79         $git_exec = shell_exec('which git');
  80         if(!preg_match('#git#', $git_exec)) {
  81             $this->error(self::ERROR_CRITICAL, "git not installed locally.");
  82             return;
  83         }
  84
  85         mkdir($this->workdir);
  86         mkdir($this->workdir.'/repository');
  87         shell_exec('git clone '.escapeshellarg($this->giturl).' '.escapeshellarg($this->workdir.'/repository'));
  88         $gitok = $this->gitcmd("status");
  89         if(preg_match("#Not a git repository#", $gitok)) {
  90             rmdir($this->workdir.'/repository');
  91             rmdir($this->workdir);
  92             $this->error(self::ERROR_CRITICAL, "error cloning git repository.");
  93             return;
  94         }
  95
  96
  97     }
  98
  99     /* public function update()
 100     * Pulls latest commit of active branch and overwrites local files
 101     */
 102     public function update() {
 103
 104     }
 105
 106 }
 107
 108 ?>