I have been using Git@OSC code hosting recently, and I would like to share a method written in PHP to obtain the git warehouse information.

<?php
require_once("git.class.php");
$repo_path = "/home/git/repositories/";
$git = new git;
$repos = $git->get_repos("/home/git/projects.list");
if(isset($_GET['git']) && in_array($_GET['git'], $repos) && file_exists($repo_path.$_GET['git']."/refs/heads/master")) {
	if(isset($_GET['header']) && !empty($_GET['header']) && file_exists($repo_path.$_GET['git']."/refs/heads/".$_GET['header'])) {
		$header=$_GET['header'];
	} else {
		$header="master";
	}
	echo $git->get_version($repo_path.$_GET['git'], $header);
} else {
	echo "404 Not Found - No such project";
}

?>

<?php

class git {
	/**
	 * parse all commits from repo
	 *
	 * @param	string	$repo
	 * @param	int		$count
	 * @param	string	$branch
	 * @return	array
	 */
	public function get_commits ($repo, $count = -1, $branch = "master") {
		$data = array();
		if(!$data) {
			$cmd = "git --git-dir=".$repo." rev-list --header --max-count=".$count." ".$branch." ";
			$rev_list = shell_exec($cmd);
			foreach(explode("\000", $rev_list) as $rev) {
				$commit = array();
				$rev_lines = explode("\n", str_replace("\r", "", $rev));
				$commit['id'] = $rev_lines[0];
				foreach($rev_lines as $rev_line) {
					if(substr($rev_line, 0, 4) == "    ") {
						if(isset($commit['text'])) {
							$commit['text'] .= "\n".substr($rev_line, 4);
						} else
							$commit['text'] = substr($rev_line, 4);
					} else {
						$opt = explode(" ", $rev_line);
						if($opt[0] == "tree") {
							$commit['tree'] = $opt[1];
						} else if($opt[0] == "parent") {
							$commit['parent'][] = $opt[1];
						} else if($opt[0] == "author") {
							$commit['author'] = $opt[1];
							$commit['author_mail'] = $opt[2];
							$commit['author_time'] = $opt[3];
						} else if($opt[0] == "committer") {
							$commit['committer'] = $opt[1];
							$commit['committer_mail'] = $opt[2];
							$commit['committer_time'] = $this->get_age($opt[3]);
						}
					}
				}
				$data[] = $commit;
			}
		}
		return $data;
	}
	
	/**
	 * get latest commit hash
	 *
	 * @param	string	$repo
	 * @param	string	$branch
	 * @raturn	string
	 */
	public function get_hash ($repo, $branch = "master") {
		$hash = shell_exec('git --git-dir='.$repo.' rev-list -n 1 --pretty="format:%h" --header '.$branch.' | grep "^[0-9a-f]*$"');
		$hash = str_replace("\r","",str_replace("\n","",$hash));
		return $hash;
	}
	
	/**
	 * get commit count
	 *
	 * @param	string	$repo
	 * @param	string	$branch
	 * @raturn	string
	 */
	public function get_count ($repo, $branch = "master") {
		$count = shell_exec('git --git-dir='.$repo.' rev-list --oneline --first-parent --header '.$branch.' | wc -l | sed "s/[ \t]//g"');
		$count = str_replace("\r","",str_replace("\n","",$count));
		return $count;
	}
	
	/**
	 * get commit version
	 *
	 * @param	string	$repo
	 * @param	string	$branch
	 * @raturn	string
	 */
	public function get_version ($repo, $branch = "master") {
		return "git-".$this->get_count($repo, $branch)."-".$this->get_hash($repo, $branch);
	}
	
	/**
	 * get commit age
	 *
	 * @param	string	$age
	 * @raturn	string
	 */
	public function get_age($age) {
		$age= time() - $age;
		if ($age > 60*60*24*365*2) {
			$age_str = floor($age/60/60/24/365);
			$age_str .= " years ago";
		} else if ($age > 60*60*24*(365/12)*2) {
			$age_str = floor($age/60/60/24/(365/12));
			$age_str .= " months ago";
		} else if ($age > 60*60*24*7*2) {
			$age_str = floor($age/60/60/24/7);
			$age_str .= " weeks ago";
		} else if ($age > 60*60*24*2) {
			$age_str = floor($age/60/60/24);
			$age_str .= " days ago";
		} else if ($age > 60*60*2) {
			$age_str = floor($age/60/60);
			$age_str .= " hours ago";
		} else if ($age > 60*2) {
			$age_str = floor($age/60);
			$age_str .= " min ago";
		} else if ($age > 2) {
			$age_str = $age;
			$age_str .= " sec ago";
		} else {
			$age_str = "right now";
		}
		return $age_str;
	}
	
	/**
	 * get repo list from projects.list file
	 *
	 * @param	string	$path
	 * @raturn	array
	 */
	public function get_repos ($path) {
		$repo_list = file_get_contents($path);
		$repo_list = explode("\n", $repo_list);
		$data = array();
		foreach($repo_list as $id => $repo) {
			$test = explode(" ",$repo);
			$data[] = $test[0];
		}
		return $data;
	}
}
//end FROM http:www.codepearl.com
?>