added upsate script

OGP64/agent_update.bat

@@ -0,0 +1,131 @@
+@echo off
+setlocal EnableExtensions
+
+REM GSP Windows Agent Git updater
+REM Run this file as Administrator from the Git-managed agent repository.
+
+REM Editable settings
+set "AGENT_DIR=%~dp0"
+if "%AGENT_DIR:~-1%"=="\" set "AGENT_DIR=%AGENT_DIR:~0,-1%"
+set "BRANCH=unstable"
+set "START_BAT=%AGENT_DIR%\OGP64\agent_start.bat"
+set "STOP_BAT=%AGENT_DIR%\OGP64\agent_stop.bat"
+set "FALLBACK_START_BAT=%AGENT_DIR%\OGP64\OGP\Install\agent_start.bat"
+set "FALLBACK_STOP_BAT=%AGENT_DIR%\OGP64\OGP\Install\agent_stop.bat"
+
+echo ========================================
+echo GSP Windows Agent Update
+echo ========================================
+echo Agent repository: %AGENT_DIR%
+echo Branch: %BRANCH%
+echo.
+
+REM Confirm Administrator privileges
+net session >nul 2>&1
+if errorlevel 1 (
+    echo ERROR: Administrator privileges are required.
+    echo Right-click Update-Agent.bat and choose "Run as Administrator".
+    goto :fail
+)
+
+if not exist "%AGENT_DIR%" (
+    echo ERROR: Agent directory does not exist:
+    echo   %AGENT_DIR%
+    goto :fail
+)
+
+if not exist "%AGENT_DIR%\.git" (
+    echo ERROR: .git was not found in:
+    echo   %AGENT_DIR%
+    echo This updater only works inside the Git-managed Windows Agent repository.
+    goto :fail
+)
+
+where git >nul 2>&1
+if errorlevel 1 (
+    echo ERROR: git was not found in PATH.
+    echo Install Git for Windows or add git.exe to PATH before running this updater.
+    goto :fail
+)
+
+if not exist "%STOP_BAT%" (
+    echo WARNING: Stop BAT not found:
+    echo   %STOP_BAT%
+    if exist "%FALLBACK_STOP_BAT%" (
+        echo Using fallback stop BAT:
+        echo   %FALLBACK_STOP_BAT%
+        set "STOP_BAT=%FALLBACK_STOP_BAT%"
+    ) else (
+        echo WARNING: No stop BAT fallback was found. The update will continue without stopping the agent first.
+        set "STOP_BAT="
+    )
+)
+
+if not exist "%START_BAT%" (
+    echo WARNING: Start BAT not found:
+    echo   %START_BAT%
+    if exist "%FALLBACK_START_BAT%" (
+        echo Using fallback start BAT:
+        echo   %FALLBACK_START_BAT%
+        set "START_BAT=%FALLBACK_START_BAT%"
+    ) else (
+        echo WARNING: No start BAT fallback was found. The update will not be able to restart the agent automatically.
+        set "START_BAT="
+    )
+)
+
+if defined STOP_BAT (
+    echo Stopping agent using:
+    echo   %STOP_BAT%
+    call "%STOP_BAT%"
+    if errorlevel 1 (
+        echo WARNING: Stop BAT returned errorlevel %ERRORLEVEL%.
+        echo Continuing because the Git update itself is still safe to attempt.
+    )
+    echo.
+)
+
+pushd "%AGENT_DIR%" >nul
+
+echo Fetching latest Git data from origin...
+git fetch origin
+if errorlevel 1 (
+    popd >nul
+    echo ERROR: git fetch origin failed.
+    goto :fail
+)
+
+echo Resetting working tree to origin/%BRANCH%...
+git reset --hard "origin/%BRANCH%"
+if errorlevel 1 (
+    popd >nul
+    echo ERROR: git reset --hard origin/%BRANCH% failed.
+    goto :fail
+)
+
+popd >nul
+echo.
+
+if defined START_BAT (
+    echo Restarting agent using:
+    echo   %START_BAT%
+    call "%START_BAT%"
+    if errorlevel 1 (
+        echo ERROR: Start BAT returned errorlevel %ERRORLEVEL%.
+        goto :fail
+    )
+) else (
+    echo WARNING: No start BAT was available. Update finished, but the agent was not restarted automatically.
+)
+
+echo.
+echo SUCCESS: GSP Windows Agent update completed.
+echo The updater only changed the Git-managed repository and did not intentionally delete configs, logs, server files, or customer data.
+pause
+exit /b 0
+
+:fail
+echo.
+echo Update-Agent.bat failed.
+pause
+exit /b 1