merge.bat

@echo off

if not defined PYTHON (set PYTHON=python)
if not defined VENV_DIR (set VENV_DIR=venv)

mkdir tmp 2>NUL

%PYTHON% -c "" >tmp/stdout.txt 2>tmp/stderr.txt
if %ERRORLEVEL% == 0 goto :start_venv
echo Couldn't launch python
goto :show_stdout_stderr

:start_venv
if [%VENV_DIR%] == [-] goto :skip_venv

dir %VENV_DIR%\Scripts\Python.exe >tmp/stdout.txt 2>tmp/stderr.txt
if %ERRORLEVEL% == 0 goto :activate_venv

for /f "delims=" %%i in ('CALL %PYTHON% -c "import sys; print(sys.executable)"') do set PYTHON_FULLNAME="%%i"
echo Creating venv in directory %VENV_DIR% using python %PYTHON_FULLNAME%
%PYTHON_FULLNAME% -m venv %VENV_DIR% >tmp/stdout.txt 2>tmp/stderr.txt
if %ERRORLEVEL% == 0 goto :activate_venv
echo Unable to create venv in directory %VENV_DIR%
goto :show_stdout_stderr

:activate_venv
set PYTHON="%~dp0%VENV_DIR%\Scripts\Python.exe"
echo venv %PYTHON%

:ask1
set /p filename1="Enter the name of the first file: "
if not exist %filename1% (
    echo "File does not exist"
    goto :ask1
)
if exist %filename1% echo "Ok, using %filename1%"

:ask2
set /p filename2="Enter the name of the second file: "
if not exist %filename2% (
    echo "File does not exist"
    goto :ask2
)
if %filename2% == %filename1% (
    echo "Files must be different"
    goto :ask2
)
if exist %filename2% echo "Ok, using %filename2%"

:ask_alpha
set "alpha=0.5"
echo "Enter alpha value (0.0-1.0)."
set /p alpha="Or press [ENTER] for default [%alpha%]: "

:ask_filename
set "output=merged"
echo "Enter output filename without file extension."
set /p output="Or press [ENTER] for default [%output%]: "

:launch
%PYTHON% merge.py %filename1% %filename2% --alpha %alpha% --output %output%
pause
exit /b