<?php
/**
 * 导出 某个分支（如：master/develop） 下，指定版本之间的差异文件，
 * 如 100 和 200 之间的差异则导出 100(不包括) - 200(包括) 的所有修改
 *
 * @example git_sjf_mas.php old版本号 new版本号
 * @author phpgo.cnblogs.com
 */
 
// 检查参数
$errorMsg = "【出错】You must useage like {$_SERVER['argv'][0]} old_version(不包括) new_version(包括)\n";
if ($_SERVER['argc'] != 3) {
    echo $errorMsg;
    exit(1);
}
 
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
// 项目路径
$projectUrl = 'git@git.cnblogs.com:phpgo/sjf_web.git';
 
// 分支名
$branchName = 'master';         // 开发分支 改为 develop
 
// 本地项目名
$projectName = 'git_sjf_mas';   // 开发分支 改为 git_sjf_dev
 
// 输出路径
$exportPath = '/Users/jianbao/123';
 
// Git 工作区
$gitWorkPath = '/Users/jianbao/1/projects';
 
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
$subGitWorkPath = $gitWorkPath . "/${projectName}";
 
// 克隆 远程 develop 分支
if (!is_dir($subGitWorkPath)) {
    // 切换至 Git 工作区
    chdir($gitWorkPath);
 
    // 克隆 分支
    system("git clone ${projectUrl} --branch ${branchName} ${subGitWorkPath}");
 
    // 新建本地分支 develop
    chdir($subGitWorkPath);
    system("git branch ${branchName}");
} else {
    chdir($subGitWorkPath);
}
 
// 切换分支 develop
system("git checkout ${branchName}");
 
// 更新分支
system("git pull origin ${branchName}");
 
$oldVersion = $_SERVER['argv'][1];
$newVersion = $_SERVER['argv'][2];
 
// 检查 版本号
$oldVersionCmd = "git log --pretty='%h' -1 ${oldVersion}";
$newVersionCmd = "git log --pretty='%h' -1 ${newVersion}";
$ret = 0;
system($oldVersionCmd, $ret);
if ($ret !== 0) {
    echo "【出错】版本号 ${oldVersion} 不存在\n";
    exit(1);
}
 
system($newVersionCmd, $ret);
if ($ret !== 0) {
    echo "【出错】版本号 ${newVersion} 不存在\n";
    exit(1);
}
 
// 输出路径
$subExportPath = $exportPath . "/${projectName}_" . date('H:i:s');
 
echo "开始分析版本差异...\n";
$diffCmd = "git diff --name-status ${oldVersion} ${newVersion}";
 
exec($diffCmd, $diffList, $return);
$diffList = (array)$diffList;
foreach ($diffList as $diffInfo) {
    echo $diffInfo . "\n";
}
 
// 清空旧数据
//@system('DELTREE ' . $exportPath . "/${projectName}*");
 
$dh = opendir($exportPath);
while ($file = readdir($dh)) {
    if ($file != "." && $file != "..") {
        $fullpath = $exportPath . "/" . $file;
        if (is_dir($fullpath) && (strpos($file, $projectName) !== false)) {
            dir_rmdir($fullpath);
        }
    }
}
closedir($dh);
 
// 新建文件夹
dir_mkdir($subExportPath);
 
$diffCount = count($diffList);
if ($diffCount < 1) {
    echo "版本间没有差异\n";
    exit(1);
}
 
$diffCount = 0;
 
// 导出版本差异文件
echo "开始导出...\n";
foreach ($diffList as $diffInfo) {
    if (preg_match('/([\w]+)\s+(.+)/', $diffInfo, $matches)) {
        $gitFileMode = $matches[1];
        $gitFileName = $matches[2];
 
        // A、M、D、AM(即增加且修改)
        // 文件被删除
        if ($gitFileMode == 'D') {
            continue;
        }
        $diffCount++;
 
        // 复制到导出目录
        $fromFilePath = $subGitWorkPath . '/' . $gitFileName;
        $toFilePath = $subExportPath . '/' . $gitFileName;
        $toFileDir = dirname($toFilePath);
        dir_mkdir($toFileDir);
 
        copy($fromFilePath, $toFilePath);
    }
}
 
echo "共导出 ${diffCount} 个差异文件\n";
exit(0);
 
 
 
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
 
/**
 * 创建文件夹
 *
 * @param string $path      文件夹路径
 * @param int    $mode      访问权限
 * @param bool   $recursive 是否递归创建
 * @return bool
 */
function dir_mkdir($path = '', $mode = 0777, $recursive = true) {
    clearstatcache();
    if (!is_dir($path)) {
        mkdir($path, $mode, $recursive);
        return chmod($path, $mode);
    }
 
    return true;
}
 
 
/**
 * 清空/删除 文件夹
 *
 * @param string $dir 文件夹路径
 * @param bool $self 是否删除自己
 * @return bool
 */
function dir_rmdir($dir, $self = true) {
    $dh = opendir($dir);
    while ($file = readdir($dh)) {
        if ($file != "." && $file != "..") {
            $fullpath = $dir . "/" . $file;
            if (!is_dir($fullpath)) {
                unlink($fullpath);
            } else {
                dir_rmdir($fullpath);
            }
        }
    }
    closedir($dh);
    if ($self&& rmdir($dir)) {
        return true;
    } else {
        return false;
    }
}
 
 
/**
 * 写文件
 *
 * @param string $filename 文件名
 * @param string $text     要写入的文本字符串
 * @param string $openmod  文本写入模式（'w':覆盖重写，'a':文本追加）
 * @return bool
 */
function file_write($filename = '', $text = '', $openmod = 'w') {
    if (@$fp = fopen($filename, $openmod)) {
        flock($fp, 2);
        fwrite($fp, $text);
        fclose($fp);
        return true;
    } else {
        return false;
    }
}
 
/**
 *【本地调试用】写对象（包括 数字、字符串、数组）
 *
 * @param string $text 要写入的文本字符串
 * @param string $type 文本写入类型（'w':覆盖重写，'a':文本追加）
 * @return bool
 */
function write2($text, $type = 'a') {
    $filename = $GLOBALS['exportPath'] . '/write2.txt';
 
    $text = "\n++++++++++++++++++++++++++++++++++++++++++\n"
        . date('Y-m-d H:i:s') . "\n"
        . print_r($text, true);
    return file_write($filename, $text, $type);
}