Update README.v1.7.0

Separate different languages in different files.
Declare project situation more clearly.
Add command permission nodes list.

2 files changed, 156 insertions, 40 deletions

diff --git a/README.md b/README.md
index 34658d7..b6802b8 100644
--- a/README.md
+++ b/README.md
@@ -1,73 +1,96 @@
-# Depreciation Notice (废弃声明)
+# 0. README in another language
 
-**This project is DISCONTINUED. Only bug reporting issues will be accepted.**
+| Language     | File                               |
+|--------------|------------------------------------|
+| English (US) | [README.md](README.md)             |
+| 简体中文         | [README_zh_CN.md](README_zh_CN.md) |
 
-**However, it is still a good choice for single-machine backup.**
+# 1. Inactive Development Notice
 
-I decide to discontinue my development in this project. There are some major reasons:
+## TL;DR
 
-1. As one of my toy projects, its code quality is not satisfying and refactoring takes too much effort. The git history is bad too.
-2. The Mod is proven to be working well (at least the latest version on my server, with Minecraft 1.16.5) as a basic backup and rollback tool for the game. All important features for a backup Mod are implemented.
-3. I need a tool which backs up the save to the filesystem on another computer, via network.
+- I have no time to keep active development in this project.
+- Only bug reporting issues will be accepted.
+- So if you want some new features, just clone and work on the code. Note that this project is licensed under GPLv3.
 
-To solve these problems, I'm working on a new backup and rollback tool for Minecraft, which is based on [rdiff-backup](https://github.com/rdiff-backup/rdiff-backup).
+**Any PR is welcomed. Feel free to add your reasonable features, if you have written test cases for them.**
 
-As a general incremental backup tool, it tends to be more solid and well-designed. Moreover, it is able to transfer backup files over network.
-Thus, I believe it is a good start point to reimplement an incremental backup Mod for Minecraft.
+## A longer version
 
-However, this tool is still a good choice for any Minecraft server (from 1.14.4 to 1.17.1) who wants to back up its world locally.
+I decided to discontinue my development in this project. There are some major reasons:
 
-(in simplified Chinese)
+1. As one of my toy projects, its code quality is not satisfying and refactoring takes too much effort. The git history
+   is bad too.
+2. The Mod is proven to be working well (at least the latest version on my server, with Minecraft 1.16.5) as a basic
+   backup and rollback tool for the game. All important features for a backup Mod are implemented.
+3. I need a tool which backs up the save to the filesystem on another computer, via network.
 
-由于我想实现一个可以将存档备份到网络上另一台计算机上的备份Mod，而如果要给这个项目增加此功能且保证可靠，需要做大量的修改和测试，这个工作量是我无法承受的。
-因此，我打算废弃这个项目，开始基于[rdiff-backup](https://github.com/rdiff-backup/rdiff-backup)开发一个新的备份Mod。
+To solve these problems, I'm working on a new backup and rollback tool for Minecraft, which is based
+on [rdiff-backup](https://github.com/rdiff-backup/rdiff-backup).
 
-在新Mod完善之前，这个Mod仍会继续更新，不过只是在修复Bug方面。这个Mod已经持续开发了一年半，基本功能是十分可靠的，因此，如果你只是需要一个将存档
-备份到本地的Mod，那么这仍然是一个可靠的选择。
+As a general incremental backup tool, it tends to be more solid and well-designed. Moreover, it is able to transfer
+backup files over network. Thus, I believe it is a good start point to reimplement an incremental backup Mod for
+Minecraft.
 
-# KBackup-Fabric
+However, this tool is still a good choice for any Minecraft server (from 1.14.4 to 1.17.1) who wants to back up its
+world locally.
 
-A simple backup mod for **fabric** Minecraft server, which makes **normal `.zip` backup** of your world, or self-implemented **incremental backup**, with slower increasing disk usage.
+# 2. Usages
 
-一个简单的Fabric备份Mod，支持普通备份（将存档整体压缩为 `.zip` 文件，保存在 `backups` 目录下）和增量备份（按需保存到 `incremental` 目录下，并将目录树结构保存在 `backups` 目录下）
+A server-only backup mod for **fabric** Minecraft server, which makes **normal `.zip` backup** of your world, or
+self-implemented **incremental backup**, with slower increasing disk usage.
 
-Supported Minecraft version: 1.14.4, 1.15.2, 1.16.4/1.16.5
+Supported Minecraft version: 1.14.4, 1.15.2, 1.16.4/1.16.5, 1.17.1, 1.18.1
 
 [Fabric API](https://minecraft.curseforge.com/projects/fabric/files) is required!
 
-## 1. Commands
+## 2.1 Commands
 
 (In English)
 
 - **/kb**  or **/kb help**: show command list
 - **/kb list**: show existing backups
 - **/kb backup \[backup_name\]**: make a backup with given name or with the current system time by default
-- **/kb incbak \[backup_name\]**: make an incremental backup which will be saved in `incremental` folder. (Incremental backup will create an index file which has an ext name of `.kbi`, and it will be saved in `backups` folder, which is the same with where `.zip` resides)
+- **/kb incbak \[backup_name\]**: make an incremental backup which will be saved in `incremental` folder. (Incremental
+  backup will create an index file which has an ext name of `.kbi`, and it will be saved in `backups` folder, which is
+  the same with where `.zip` resides)
 - **/kb restore \<backup_name\>**: restore to a certain backup. This command needs a confirmation to execute.
 - **/kb confirm**: confirm executing restore operation. The operation is irreversible.
 - **/kb delete**: delete an existing backup.
-- **/kb prev**: Find and select the most recent backup file. After executing this command, you can use `/kb restore 1` to restore to this backup.
+- **/kb prev**: Find and select the most recent backup file. After executing this command, you can use `/kb restore 1`
+  to restore to this backup.
 
-(In simplified Chinese, 简体中文版本)
+Only OPs can make backups and restore by default.
 
-- **/kb**  or **/kb help**: 显示命令列表
-- **/kb list**: 显示所有已有的备份
-- **/kb backup \[backup_name\]**: 以给定名字创建一个新备份，缺省的名字是“noname”
-- **/kb incbak \[backup_name\]**: 创建一个增量备份，保存在 `incremental` 目录下。 (增量备份会创建扩展名为`.kbi`的一个索引文件，该文件仍被保存在 `backups` 目录下，与`.zip`文件的保存位置相同)
-- **/kb restore \<backup_name\>**: 还原到指定的备份。该命令需要二次确认才会真正被执行
-- **/kb confirm**: 二次确认，一旦确认，等待确认的命令会立刻被执行。这个命令是不可逆的
-- **/kb delete**: 删除一个现有的备份
-- **/kb prev**: 显示并且选中最近的一个备份，执行这个命令后，可以直接使用 `/kb restore 1` 进行还原
+However, you can use permission management mods like [LuckPerms](https://luckperms.net/) to configure exactly what
+permissions normal players can use. Permission nodes of each command are listed below:
 
-## 2. Script for auto-restart after restoring
+| Command    | Permission Required |
+|------------|---------------------|
+| /kb        | kb.root             |
+| /kb help   | kb.help             |
+| /kb list   | kb.list             |
+| /kb backup | kb.backup           |
+| /kb incbak | kb.incbak           |
+| /kb restore | kb.restore          |
+| /kb delete | kb.delete           |
+| /kb confirm | kb.confirm          |
+| /kb cancel | kb.cancel           |
+| /kb prev   | kb.prev             |
 
-Due to the nature of JVM: the Java language's running environment, there is no elegant way to restart Minecraft server in a server plugin. In order to auto restart after restoring, an outer system-based script is required, i.e. a batch or a shell script.
+## 2.2 Script for auto-restart after restoring
 
-KBackup exit JVM with a special code `111` after restoring the level successfully. The startup script just check the exit code and restart Minecraft server if the code is `111`.
+Due to the nature of JVM: the Java language's running environment, there is no elegant way to restart Minecraft server
+in a server plugin. In order to auto restart after restoring, an outer system-based script is required, i.e. a batch or
+a shell script.
 
-I will give examples for some popular operating systems. To use these scripts, you should replace your start.bat or start.sh script with given code lines.
+KBackup exit JVM with a special code `111` after restoring the level successfully. The startup script just check the
+exit code and restart Minecraft server if the code is `111`.
 
-### 2.1 Script for Windows
+I will give examples for some popular operating systems. To use these scripts, you should replace your start.bat or
+start.sh script with given code lines.
+
+### 2.2.1 Script for Windows
 
 ```batch
 @echo off
@@ -79,7 +102,7 @@ rem kbackup restore auto restart
 pause
 ```
 
-### 2.2 Script for Linux or U\*ix using shell (Not tested, I use Windows for the most time, test it on your own)
+### 2.2.2 Script for Linux or U\*ix using shell (Not tested, I use Windows for the most time, test it on your own)
 
 ```shell
 #!/bin/sh
@@ -91,8 +114,7 @@ do
 done
 ```
 
-
-## 3. To-Do List:
+# 3. To-Do List
 
 - A more friendly help menu (colored command help menu)
 - New version checker
diff --git a/README_zh_CN.md b/README_zh_CN.md
new file mode 100644
index 0000000..bbedd1a
--- /dev/null
+++ b/README_zh_CN.md
@@ -0,0 +1,94 @@
+# 0. README in another language
+
+| Language     | File                               |
+|--------------|------------------------------------|
+| English (US) | [README.md](README.md)             |
+| 简体中文         | [README_zh_CN.md](README_zh_CN.md) |
+
+# 1. 不活跃开发声明
+
+## 太长不看版
+
+- 我没有时间来保持活跃维护这个项目
+- Issues里，只有反馈BUG的Issue会被我处理（欢迎其他贡献者来维护）
+- 如果你想要新功能，请自己实现（注意遵守GPLv3协议）
+
+**欢迎任何人的PR，放心大胆地添加你的feature，只要它是合理有用的。不过，请给你的新代码写测试。 :)**
+
+## 长文阅读版
+
+由于我想实现一个可以将存档备份到网络上另一台计算机上的备份Mod，而如果要给这个项目增加此功能且保证可靠，需要做大量的修改和测试，这个工作量是我无法承受的。
+因此，我打算废弃这个项目，开始基于[rdiff-backup](https://github.com/rdiff-backup/rdiff-backup)开发一个新的备份Mod。
+
+在新Mod完善之前，这个Mod仍会继续更新，不过只是在修复Bug方面。这个Mod已经持续开发了一年半，基本功能是十分可靠的，因此，如果你只是需要一个将存档 备份到本地的Mod，那么这仍然是一个可靠的选择。
+
+# 2. 使用说明
+
+一个仅服务端的Fabric备份Mod，支持普通备份（将存档整体压缩为 `.zip` 文件，保存在 `backups` 目录下）和增量备份（按需保存到 `incremental` 目录下，并将目录树结构保存在 `backups` 目录下）
+
+支持的Minecraft版本：1.14.4、1.15.2、1.16.4/1.16.5、1.17.1、1.18.1
+
+需要安装[Fabric API](https://minecraft.curseforge.com/projects/fabric/files)模组才可使用！
+
+## 2.1 指令列表
+
+- **/kb**  or **/kb help**: 显示命令列表
+- **/kb list**: 显示所有已有的备份
+- **/kb backup \[backup_name\]**: 以给定名字创建一个新备份，缺省的名字是“noname”
+- **/kb incbak \[backup_name\]**: 创建一个增量备份，保存在 `incremental` 目录下。 (增量备份会创建扩展名为`.kbi`的一个索引文件，该文件仍被保存在 `backups`
+  目录下，与`.zip`文件的保存位置相同)
+- **/kb restore \<backup_name\>**: 还原到指定的备份。该命令需要二次确认才会真正被执行
+- **/kb confirm**: 二次确认，一旦确认，等待确认的命令会立刻被执行。这个命令是不可逆的
+- **/kb delete**: 删除一个现有的备份
+- **/kb prev**: 显示并且选中最近的一个备份，执行这个命令后，可以直接使用 `/kb restore 1` 进行还原
+
+默认情况下，只有OP才能备份和回档。
+
+如果要详细配置你的玩家可以使用哪些命令，可以用像 [LuckPerms](https://luckperms.net/) 之类的权限管理插件来配置。KBackup的指令权限节点如下表所示：
+
+| 指令          | 需要的权限      |
+|-------------|------------|
+| /kb         | kb.root    |
+| /kb help    | kb.help    |
+| /kb list    | kb.list    |
+| /kb backup  | kb.backup  |
+| /kb incbak  | kb.incbak  |
+| /kb restore | kb.restore |
+| /kb delete  | kb.delete  |
+| /kb confirm | kb.confirm |
+| /kb cancel  | kb.cancel  |
+| /kb prev    | kb.prev    |
+
+## 2.2 如何在回档后自动重启服务端
+
+受限于JVM自身，MC的模组和插件无法优雅地重启自己。KBackup采取的自动重启方案是：
+
+- MC服务端被用特殊的启动脚本启动。
+- 回档完成后，MC服务端进程退出，退出代码为特殊值`111`。
+- 启动脚本在MC服务端进程结束后检查返回值。如果是`111`，则重新启动服务端，否则结束脚本。
+
+在Windows和Linux下都是可用的，而且POSIX兼容的操作系统应该都可以用。下文将给出Windows和Linux系统的示例脚本（分别为`.bat`批处理脚本和`.sh`外壳脚本）。
+
+### 2.2.1 适用于Windows的自动重启脚本
+
+```batch
+@echo off
+title Keuin's personal Minecraft server
+:loop
+java -Xms4G -Xmx4G -jar fabric-server-launch.jar nogui
+if %errorlevel%==111 goto loop
+rem kbackup restore auto restart
+pause
+```
+
+### 2.2.2 适用于Linux的自动重启脚本
+
+```shell
+#!/bin/sh
+STATUS=111
+while [ $STATUS -eq 111 ]
+do
+    java -Xms4G -Xmx4G -jar fabric-server-launch.jar nogui
+    STATUS=$?
+done
+```