动手开发一个简易的 PHP for Git Server 第四章

版权声明：本文为大事龙原创文章，未经允许不得转载。 https://blog.csdn.net/w_yunlong/article/details/77935895

git.php

class Git
{

    public static function init($name)
    {
        $cmd = "git init --bare {$name}.git";

        return self::procExec($cmd, $input);

    }

    public static function getInfoRefs($service, $repo_path)
    {
        if(in_array($service, ['upload-pack', 'receive-pack'])) {
            self::updateServerInfo($repo_path);
        }

        header("Content-Type: application/x-git-$service-advertisement");
        header("HTTP/1.1 200 OK");
        $cmd = "git $service --stateless-rpc --advertise-refs $repo_path";
        $out = shell_exec($cmd);
        $res = self::packetWrite("# service=git-$service");
        $res .= "0000";
        $res .= $out;
        echo $res;
    }

    public static function updateServerInfo($repo_path)
    {
        $cmd = 'git --git-dir '. $repo_path .' update-server-info';
        file_put_contents('updateServerInfo', $cmd);
        $out = shell_exec($cmd);
    }

    public static function command($command, $input, $repo_path)
    {
        $cmd = "git $command --stateless-rpc $repo_path";

        $res = self::procExec($cmd, $input);

        if('receive-pack' == $command) {
            self::updateServerInfo($repo_path);
        }

        return $res;
    }

    public static function packetWrite($str)
    {
        $len = dechex(strlen($str) + 4);
        return "00$len$str";
    }

    public static function procExec($cmd, $input = null)
    {
        $proc = proc_open($cmd, [['pipe', 'r'], ['pipe', 'w']], $pipes);
        if(is_resource($proc)) {
            $input && fwrite($pipes[0], $input);
            fclose($pipes[0]);
            $res = '';
            while (!feof($pipes[1])) {
                $res .= fread($pipes[1], 8192);
            }
            fclose($pipes[1]);
            proc_close($proc);

            return $res;
        } else {
            return false;
        }
    }
}