extract.bat

@echo off
rem requires 7-Zip, UnxUtils (wget, md5sum, ln)
rem UnxUtils must be in the PATH environment variable
set "base=%~dp0"
set "sevenzipdir=%ProgramFiles%\7-Zip"
set "installdir=%base%Quake II .NET"
set "demofile=%base%q2-314-demo-x86.exe"
set "pakfile=%base%pak0.pak"
set "msifile=%base%Quake II .NET.msi"
if exist "%sevenzipdir%" (
    rem add 7-Zip to PATH
    set "path=%path%;%sevenzipdir%"
) else (
    echo.Error: 7-Zip not installed.
    goto end
)
if not exist "%installdir%" (
    mkdir "%installdir%"
    :extractmsi
    if exist "%msifile%" (
        rem extract the files from the msi
        msiexec /a "%msifile%" /qb TARGETDIR="%installdir%"
    ) else (
        rem try to download the necessary file
        rem note: wget command is not standard on windows
        wget "http://www.vertigoprojects.com/Quake2NETDownloads/Quake II .NET.msi"
        if not exist "%msifile%.md5" (
            echo.0be4d6c7f6a20436f59699ce707438f7 *Quake II .NET.msi>"%msifile%.md5"
        )
        rem try to verify the msi
        rem note: md5sum command is not standard on windows
        md5sum -c "%msifile%.md5"
        if "%errorlevel%"=="0" (
            goto extractmsi
        ) else (
            echo.Error: Failed to download Quake II .NET.msi
            if exist "%msifile%" (
                del /f /q "%msifile%"
            )
            goto end
        )
    )
    :extractpak
    if exist "%demofile%" (
        rem extract the pak file from the demo exe
        rem note: needs 7-Zip installed to do this
        7z e -o"%base%" "%demofile%" "Install\Data\baseq2\pak0.pak"
    ) else (
        rem try to download the necessary file
        rem note: this may take a very long time depending on server load
        wget "ftp://ftp.idsoftware.com/idstuff/quake2/q2-314-demo-x86.exe"
        if not exist "%demofile%.md5" (
            echo.4d1cd4618e80a38db59304132ea0856c  q2-314-demo-x86.exe>"%demofile%.md5"
        )
        rem try to verify demo exe
        md5sum -c "%demofile%.md5"
        if "%errorlevel%"=="0" (
            goto extractpak
        ) else (
            echo.Error: Failed to download q2-314-demo-x86.exe
            if exist "%demofile%" (
                del /f /q "%demofile%"
            )
            goto end
        )
    )
    if exist "%pakfile%" (
        rem link the pak file in the necessary directories
        rem note: ln command is not standard on windows
        if exist "%installdir%\managed\baseq2" (
            ln "%pakfile%" "%installdir%\managed\baseq2\pak0.pak"
        )
        if exist "%installdir%\native\baseq2" (
            ln "%pakfile%" "%installdir%\native\baseq2\pak0.pak"
        )
    )
)
echo.Done.
:end
pause
@exit