@echo off

set extension=bk2

echo. Compress bink files
echo.
for /r %%f in (*.%extension%) do bink_pack "%%f" "%%~df%%~pf%%~nf.bpk_compressed

cls
echo. Unpack compressed file
echo.
for /r %%f in (*.bpk_compressed) do bink_unpack "%%f" "%%~df%%~pf%%~nf.tmp_for_patch_creation"

cls
echo. Create diff from original vs unpacked file
echo.
for /r %%f in (*.tmp_for_patch_creation) do hdiffz "%%f" "%%~df%%~pf%%~nf.%extension%" "%%~df%%~pf%%~nf.binkDIFF"

cls
echo. Delete unpacked files which were just extracted for patch creation purposes
echo.
del /s "*.tmp_for_patch_creation"