<?php
/**
 * Class Main
 * @author Xiaobe
 * @time 2017
 */


/**
 * @param str $msg
 */
function writeLog($msg){
 date_default_timezone_set("Asia/Shanghai");
 file_put_contents('log.txt',"\r\n".date("h:i:sa").': '.$msg,FILE_APPEND|LOCK_EX);
}

/**
 * @see http://php.net/manual/en/function.proc-open.php
 */
$descriptorspec = array(
 0 => array(
 "pipe",
 "r"
 ), // stdin is a pipe that the child will read from
 1 => array(
 "pipe",
 "w"
 ), // stdout is a pipe that the child will write to
 2 => array(
 "file",
 __DIR__ . "/error-output.txt",
 "a"
 ) // stderr is a file to write to
);

$post=file_get_contents('php://input');
$postData = json_decode($post,true);
if($postData['password'] !== 'xiaobebe'){
 writeLog('un-authorization request:'.$_SERVER['HTTP_HOST']);
 die;
}

// http(s)方式如何自动记住密码
// git config --global credential.helper store
$username = 'xiaobe';
$password = 'xxxxxxx';

$cwd = '/var/www/GIT/line2'; //The initial working dir for the command. This must be an absolute directory path
$projectSuffix = 'xiaobe/line.git';
$branch = 'master';

$updateUrl = 'https://'.$username.':'.$password.'@git.oschina.net/'.$projectSuffix;

// change authority
$processes[0] = proc_open('touch log.txt',$descriptorspec,$pipes,__DIR__,NULL);
$processes[1] = proc_open('chmod 777 log.txt',$descriptorspec,$pipes,__DIR__,NULL);
$processes[3] = proc_open('touch error-output.txt',$descriptorspec,$pipes,__DIR__,NULL);
$processes[4] = proc_open('chmod 777 error-output.txt',$descriptorspec,$pipes,__DIR__,NULL);
// update code
$re=shell_exec("cd ".$cwd.' && git pull '.$updateUrl.' '.$branch);
if($re==null){
 shell_exec("cd ".$cwd.' && git clone '.$updateUrl.' . && git config core.filemode false');
}
var_dump($re);

// $processes[5] = proc_open('git reset --hard HEAD && git pull '.$updateUrl.' '.$branch,$descriptorspec,$pipes,$cwd,NULL);

// can change the file authority created by itself
// $processes[6] = proc_open('chmod -R 777 '.$cwd,$descriptorspec,$pipes,$cwd,NULL);

$count = count($processes);
for($i = 0; $i < $count; $i ++){
 if(is_resource($processes[$i]))
 $return_value = proc_close($processes[$i]);

 if($return_value == 0){
 writeLog('Command '.$i.' success \r\n');
 }else
 writeLog('Command '.$i.' faild.');
}

?>