使用PHP自动部署GIT代码

最近在使用Coding的代码托管，顺便设置了WebHook自动部署，过程还是挺艰辛的，主要还是没搞懂Linux的权限控制，不过好在弄好了，分享一下获益最深的一篇文章，供大家参考，原文是英文版的，我的英语也不行，勉强能看懂，大家凑合着看吧

原文链接：http://jondavidjohn.com/git-pull-from-a-php-script-not-so-simple/

I intended to set up a repository (hosted on BitBucket) to initiate a pull on a dev server when new commits are pushed up.

It seemed like a simple enough process. BitBucket has a service that will fire off a POST request as a post-receive hook. So I set up a receiving php script to check a randomized token and then initiate the git pull. Looking something like this...

define('PRIVATE_KEY', 'XXXXXXXXXXXXXXXXxxx');

if ($_SERVER['REQUEST_METHOD'] === 'POST'
        && $_REQUEST['thing'] === PRIVATE_KEY)
{
    echo shell_exec("git pull");
}