smartledz-patch/patch/restore_client_auto_back/code.php

<?php

// +----------------------------------------
// | overlay文件系统目录分布
// +----------------------------------------
$lowerDir = realpath(__DIR__."/../../smartLEDZ"); // read层·原始文件
$upperDir = realpath(__DIR__."/../../smartLEDZ_Upper"); // write层
$mergedDir = realpath(__DIR__."/../../smartLEDZ_Merged"); // 读写·数据交互层（read层 + write层） - [ 程序运行在此 ]

$app_path = $lowerDir; // 当前运行的项目主目录
$targetDir = $lowerDir; //
if(is_dir($mergedDir)){ // 存在overlay
    $app_path = $mergedDir;
    $targetDir = $mergedDir;
}

if(file_exists($app_path . "/logs/gw_back")){
    unlink($app_path . "/logs/gw_back");
}

if(!is_dir($app_path . "/restore")) mkdir($app_path . "/restore");
$unCmd = sprintf("tar -xvf %s/smartLEDZ_DB_U.tar -C %s/restore", $app_path, $app_path);

exec($unCmd);

// 检查备份文件是什么APP版本备份的
exec("tar -tf " . $app_path."/smartLEDZ_DB_U.tar", $output);
if(in_array("overlay/www/smartLEDZ/db/smartLEDZ.db", $output)){
    // 旧overlay版备份
    exec(sprintf("cp -r %s/restore/overlay/www/smartLEDZ/* %s", $app_path, $targetDir));
    exec(sprintf("rm -rf %s/restore/overlay", $app_path));

}else if(in_array("mnt/mmcblk0p1/www/smartLEDZ/db/smartLEDZ.db", $output)){
    // 旧版APP备份
    exec(sprintf("cp -r %s/restore/mnt/mmcblk0p1/www/smartLEDZ/* %s", $app_path, $targetDir));
    exec(sprintf("rm -rf %s/restore/mnt", $app_path));

}else if(in_array("mnt/mmcblk0p1/www/smartLEDZ_Merged/db/smartLEDZ.db", $output)){
    // 新overlay版备份
    exec(sprintf("cp -r %s/restore/mnt/mmcblk0p1/www/smartLEDZ_Merged/* %s", $app_path, $targetDir));
    exec(sprintf("rm -rf %s/restore/mnt", $app_path));
}

exec(sprintf("cp -r %s/db/exec.json.bak %s/db/exec.json", $targetDir, $targetDir));

// 热重载Socket
file_put_contents($app_path . "/workerman/reload", "");