Execute scoop update without using git-bash to update git itself

main.bat

@@ -9,8 +9,9 @@ setlocal
         exit /b 1
     )
 
-    REM "Execute setup.bat and scoop.sh at first"
+    REM "Execute setup.bat, update.bat and scoop.sh at first"
     call %WORKDIR%\setup.bat
+    call %WORKDIR%\update.bat
     %HOMEDRIVE%%HOMEPATH%\scoop\apps\git-with-openssh\current\usr\bin\bash.exe --login scoop.sh %1
 
     REM "Execute the role python at second"

scoop.sh

@@ -26,16 +26,6 @@ function LOGE() {
     LOG_impl ${LEVEL} "${messages}"
 }
 
-function update_scoop() {
-    LOGI "Update scoop"
-    scoop update
-}
-
-function update_installed_packages() {
-    LOGI "Update installed packages"
-    scoop update '*'
-}
-
 function add_bucket() {
     local -r bucket_name=$1
 
@@ -75,9 +65,6 @@ function install_package() {
 function main() {
     local mode=$1
 
-    update_scoop
-    update_installed_packages
-
     add_bucket "extras"
     add_bucket "versions"
 

update.bat

@@ -0,0 +1,50 @@
+@echo off
+
+:Main
+setlocal
+    where scoop > nul 2> nul
+    if %ERRORLEVEL% == 1 (
+        call :LogError "You must install scoop. https://github.com/lukesampson/scoop"
+        exit /b
+    )
+
+    call :LogInfo "Update scoop"
+    call scoop update
+
+    call :LogInfo "Update installed packages"
+    call scoop update *
+
+    exit /b
+endlocal
+
+:InstallPackage
+setlocal
+    set PACKAGE_NAME=%~1
+
+    scoop list | find " %PACKAGE_NAME% " > nul
+    if %ERRORLEVEL% == 0 (
+        call :LogDebug "Already installed" %PACKAGE_NAME%
+    ) else (
+        call :LogInfo "Install" %PACKAGE_NAME%
+        call scoop install %PACKAGE_NAME%
+    )
+
+    exit /b
+endlocal
+
+:LogInfo
+setlocal
+    call :LogImpl I %*
+    exit /b
+endlocal
+
+:LogImpl
+setlocal
+    set /p NOP=%date% < nul
+    set /p NOP=%time% < nul
+    for %%s in (%*) do (
+        set /p NOP=%%~s < nul
+    )
+    echo;
+    exit /b
+endlocal