Create a batch file which synchronize two folders using text file validations - batch-file

Question

I want to create such scenarios in which there are two folders & subfolders of A and B, when there is an addition of files or data in folder A it should create the same files or data in folder B (including subfolder). Also, for example, there are 6 files in folder A and 7 files in folder B system automatically check the files and subfiles of folder A and B and delete the mismatched file(pqr.js
) from 'Folder B'. We also want to create a bridge or validator text file between folder A and B which validate the file names, for example if there is filename 'config.properties' which is present in text file (Validator) ABC.txt and that file is not present in folder A system should check the file name in validator before deleting any files from folder B. So if there are no such file name config.properties in folder A but present in validator text file system will keep that file in folder B though it is deleted from folder A.
set dirsrc=folder A
set dirdest=folder B
set validator=ABC.txt
setlocal ENABLEDELAYEDEXPANSION
echo Source: "%dirsrc%"
echo Destination: "%dirdest%"
echo.
echo.
echo Cleaning files...
for /f "tokens=*" %%a in ('dir /s /b /a:-d "%dirdest%"') do (
set curdest=%%a
set cursrc=!curdest:%dirdest%=%dirsrc%!
if not exist !cursrc! (
echo Deleting "!curdest!"
del "!curdest!"
)
)
echo.
echo.
echo Cleaning directories...
set NLM=^
set NL=^^^%NLM%%NLM%^%NLM%%NLM%
rem Two lines left empty for NewLine to work
for /f "tokens=*" %%a in ('dir /s /b /a:d "%dirdest%"') do (
set curdest=%%a
set cursrc=!curdest:%dirdest%=%dirsrc%!
if not exist !cursrc! (
set rmlist=!curdest!?!rmlist!
)
)
set rmlist=!rmlist:?=%NL%!
for /f "tokens=*" %%a in ("!rmlist!") do (
if exist %%a (
echo Removing directory "%%a"
rmdir "%%a"
)
)
xcopy /i /y /e "%dirsrc%" "%dirdest%" /d
endlocal
All the scenarios are completed expect Validator scenarios.