简化Upm.bat脚本，移除冗余的错误处理和确认步骤，优化分支创建和标签推送流程，确保成功创建UPM分支和标签。

Update Upm.bat

@@ -1,124 +1,44 @@
 @echo off
-:: Set UTF-8 encoding
 chcp 65001
-:: Set window title
-title UPM Package Update Tool
-:: Set console color
 color a
 
-echo 开始提交到git upm....
-echo 提交upm前请确保当前分支所有改动都已经提交！
+echo Starting UPM package update...
+echo Please make sure all changes are committed!
 
-:: Extract version from package.json
+:: Get version from package.json
 for /f "tokens=2 delims=:, " %%i in ('findstr "version" Assets\package.json') do (
     set version=%%i
 )
-:: Remove quotes
 set version=%version:"=%
 
-echo 从package.json中读取的版本号为：%version%
+echo.
+echo Current version: %version%
+echo.
+set /p confirm=Confirm to create UPM branch and tag %version% (y/n): 
 
-:: Check if tag exists
-git tag | findstr "%version%" > nul
-if %errorlevel% equ 0 (
-    echo 错误：版本号 %version% 对应的tag已存在！
-    pause
-    exit
+if /i not "%confirm%"=="y" (
+    echo Operation cancelled.
+    goto :END
 )
 
-set /p Flg=确认提交的版本号%version%，是否开始提交(y/n) -------- :
+:: Clean and prepare
+git checkout -f master
+git branch -D upm 2>nul
 
-IF "%Flg%" equ "y" (
-	echo 开始提交，请勿关闭该窗口！
-	
-	:: Force switch to master first and ensure clean state
-	echo 切换到master分支并清理工作区...
-	git checkout -f master
-	git reset --hard HEAD
-	git clean -fd
-	
-	:: Verify Assets folder exists
-	if not exist "Assets" (
-		echo 错误：Assets文件夹不存在！
-		goto :END
-	)
-	
-	:: Delete local upm branch if exists
-	echo 清理本地upm分支...
-	git branch -D upm 2>nul
-	
-	:: Create new upm branch from current Assets folder with verbose output
-	echo 正在创建upm分支...
-	git subtree split --prefix Assets --branch upm --verbose
-	if %errorlevel% neq 0 (
-		echo 错误：创建upm分支失败！
-		echo 正在尝试修复...
-		
-		:: Try to fix common issues
-		git gc
-		git prune
-		
-		:: Second attempt
-		echo 第二次尝试创建upm分支...
-		git subtree split --prefix Assets --branch upm --verbose
-		if %errorlevel% neq 0 (
-			echo 错误：创建upm分支失败，请确保：
-			echo 1. Assets文件夹存在且不为空
-			echo 2. 当前分支没有未提交的更改
-			echo 3. Git仓库状态正常
-			goto :END
-		)
-	)
-	
-	:: Force update local upm branch with remote changes
-	echo 更新远程upm分支...
-	git fetch origin upm
-	git checkout -f upm
-	git reset --hard origin/upm
-	
-	:: Create new subtree split
-	git checkout -f master
-	git subtree split --prefix Assets --branch upm-temp
-	
-	:: Apply new changes and force push
-	git checkout -f upm
-	git merge upm-temp --allow-unrelated-histories -X theirs
-	git branch -D upm-temp
-	
-	:: Create and push tag with explicit steps
-	echo 创建并推送tag %version%...
-	git tag -d %version% 2>nul
-	git tag %version% upm
-	if %errorlevel% neq 0 (
-		echo 错误：创建tag失败！
-		git checkout -f master
-		goto :END
-	)
-	
-	:: Push changes and tags separately
-	echo 推送upm分支...
-	git push -f origin upm
-	if %errorlevel% neq 0 (
-		echo 错误：推送upm分支失败！
-		git checkout -f master
-		goto :END
-	)
-	
-	echo 推送tag...
-	git push origin %version%
-	if %errorlevel% neq 0 (
-		echo 错误：推送tag失败！
-		git tag -d %version%
-		git checkout -f master
-		goto :END
-	)
-	
-	:: Return to master branch
-	git checkout -f master
-	echo 所有操作已完成！
-)
+:: Create and push upm branch
+git subtree split --prefix Assets --branch upm
+git push -f origin upm
+
+:: Create and push tag
+git tag -d %version% 2>nul
+git tag %version% upm
+git push origin %version%
+
+:: Return to master
+git checkout -f master
+
+echo.
+echo Successfully created UPM branch and tag %version%
 
 :END
-echo 执行完成!
-pause
-exit
+pause