Update git installer.bat

git installer.bat

@@ -1,11 +1,11 @@
 @echo off
-setlocal
+setlocal enabledelayedexpansion
 
 :: Define variables
-set "GIT_URL=https://github.com/git-for-windows/git/releases/latest/download/PortableGit-2.49.0-64-bit.7z.exe"
-set "GIT_ARCHIVE=PortableGit.7z.exe"
 set "SCRIPT_DIR=%~dp0"
 set "EXTRACT_DIR=%SCRIPT_DIR%gitportable"
+set "GIT_ARCHIVE=PortableGit.7z.exe"
+set "API_URL=https://api.github.com/repos/git-for-windows/git/releases/latest"
 
 :: Check if Git is available in the PATH
 where git >nul 2>nul
@@ -20,9 +20,20 @@ if exist "%EXTRACT_DIR%\" (
     goto :EOF
 )
 
-:: Download Portable Git
-echo Downloading Portable Git...
-powershell -Command "Invoke-WebRequest -Uri '%GIT_URL%' -OutFile '%SCRIPT_DIR%%GIT_ARCHIVE%'"
+:: Use PowerShell to get the download URL dynamically
+echo Fetching latest Portable Git release info...
+for /f "usebackq delims=" %%i in (`powershell -NoProfile -Command ^
+    "(Invoke-RestMethod -Uri '%API_URL%').assets | Where-Object { $_.name -like '*64-bit.7z.exe' } | Select-Object -First 1 -ExpandProperty browser_download_url"`) do (
+    set "GIT_URL=%%i"
+)
+
+if not defined GIT_URL (
+    echo Failed to find download URL from GitHub API.
+    exit /b 1
+)
+
+echo Downloading Portable Git from: %GIT_URL%
+powershell -NoProfile -Command "Invoke-WebRequest -Uri '%GIT_URL%' -OutFile '%SCRIPT_DIR%%GIT_ARCHIVE%'"
 
 :: Create extraction directory
 mkdir "%EXTRACT_DIR%"