load a dotenv file in windows cmd line - doesn't support values containing `=`

loadenv.bat

@echo off
if "%~1"=="" (
    set "ENV_FILE=%CD%\.env"
) else (
    set "ENV_FILE=%~1"
)

if not exist "%ENV_FILE%" (
    echo Error: %ENV_FILE% file not found
    exit /b 1
)

for /f "delims=" %%L in (%ENV_FILE%) do (
    :: Split the line using '=' as the delimiter
    for /f "tokens=1,2 delims==" %%A in ("%%L") do (
        :: Echo the results
        set "%%A=%%B"
    )
)