@echo off
goto Run
:Usage
echo.%~nx0 [flags and arguments] [quoted MSBuild options]
echo.
echo.Build CPython from the command line.  Requires the appropriate
echo.version(s) of Microsoft Visual Studio to be installed (see readme.txt).
echo.
echo.After the flags recognized by this script, up to 9 arguments to be passed
echo.directly to MSBuild may be passed.  If the argument contains an '=', the
echo.entire argument must be quoted (e.g. `%~nx0 "/p:PlatformToolset=v141"`).
echo.Alternatively you can put extra flags for MSBuild in a file named 
echo.`msbuild.rsp` in the `PCbuild` directory, one flag per line. This file
echo.will be picked automatically by MSBuild. Flags put in this file do not
echo.need to be quoted. You can still use environment variables inside the 
echo.response file.
echo.
echo.Available flags:
echo.  -h  Display this help message
echo.  -V  Display version information for the current build
echo.  -r  Target Rebuild instead of Build
echo.  -d  Set the configuration to Debug
echo.  -E  Don't fetch or build external libraries.  Extension modules that
echo.      depend on external libraries will not attempt to build if this flag
echo.      is present; -e is also accepted to explicitly enable fetching and
echo.      building externals.
echo.  -m  Enable parallel build (enabled by default)
echo.  -M  Disable parallel build
echo.  -v  Increased output messages
echo.  -vv Verbose output messages
echo.  -q  Quiet output messages (errors and warnings only)
echo.  -k  Attempt to kill any running Pythons before building (usually done
echo.      automatically by the pythoncore project)
echo.  --pgo          Build with Profile-Guided Optimization.  This flag
echo.                 overrides -c and -d
echo.  --disable-gil  Enable experimental support for running without the GIL.
echo.  --test-marker  Enable the test marker within the build.
echo.  --regen        Regenerate all opcodes, grammar and tokens.
echo.  --experimental-jit          Enable the experimental just-in-time compiler.
echo.  --experimental-jit-off      Ditto but off by default (PYTHON_JIT=1 enables).
echo.  --experimental-jit-interpreter  Enable the experimental Tier 2 interpreter.
echo.  --pystats      Enable PyStats collection.
echo.  --tail-call-interp  Enable tail-calling interpreter (requires LLVM 19 or higher).
echo.
echo.Available flags to avoid building certain modules.
echo.These flags have no effect if '-e' is not given:
echo.  --no-ctypes   Do not attempt to build _ctypes
echo.  --no-ssl      Do not attempt to build _ssl
echo.  --no-tkinter  Do not attempt to build Tkinter
echo.
echo.Available arguments:
echo.  -c Release ^| Debug ^| PGInstrument ^| PGUpdate
echo.     Set the configuration (default: Release)
echo.  -p x64 ^| Win32 ^| ARM ^| ARM64
echo.     Set the platform (default: x64)
echo.  -t Build ^| Rebuild ^| Clean ^| CleanAll
echo.     Set the target manually
echo.  --pgo-job  The job to use for PGO training; implies --pgo
echo.             (default: "-m test --pgo")
exit /b 127

:Run
setlocal
set platf=x64
set conf=Release
set target=Build
set dir=%~dp0
set parallel=/m
set verbose=/nologo /v:m /clp:summary
set kill=
set do_pgo=
set pgo_job=-m test --pgo
set UseTIER2=

:CheckOpts
if "%~1"=="-h" goto Usage
if "%~1"=="-c" (set conf=%2) & shift & shift & goto CheckOpts
if "%~1"=="-p" (set platf=%2) & shift & shift & goto CheckOpts
if "%~1"=="-r" (set target=Rebuild) & shift & goto CheckOpts
if "%~1"=="-t" (set target=%2) & shift & shift & goto CheckOpts
if "%~1"=="-d" (set conf=Debug) & shift & goto CheckOpts
if "%~1"=="-m" (set parallel=/m) & shift & goto CheckOpts
if "%~1"=="-M" (set parallel=) & shift & goto CheckOpts
if "%~1"=="-v" (set verbose=/v:n) & shift & goto CheckOpts
if "%~1"=="-vv" (set verbose=/v:d /ds) & shift & goto CheckOpts
if "%~1"=="-q" (set verbose=/v:q /nologo /clp:summary) & shift & goto CheckOpts
if "%~1"=="-k" (set kill=true) & shift & goto CheckOpts
if "%~1"=="--pgo" (set do_pgo=true) & shift & goto CheckOpts
if "%~1"=="--pgo-job" (set do_pgo=true) & (set pgo_job=%~2) & shift & shift & goto CheckOpts
if "%~1"=="--disable-gil" (set UseDisableGil=true) & shift & goto CheckOpts
if "%~1"=="--test-marker" (set UseTestMarker=true) & shift & goto CheckOpts
if "%~1"=="-V" shift & goto Version
if "%~1"=="--regen" (set Regen=true) & shift & goto CheckOpts
if "%~1"=="--experimental-jit" (set UseJIT=true) & (set UseTIER2=1) & shift & goto CheckOpts
if "%~1"=="--experimental-jit-off" (set UseJIT=true) & (set UseTIER2=3) & shift & goto CheckOpts
if "%~1"=="--experimental-jit-interpreter" (set UseTIER2=4) & shift & goto CheckOpts
if "%~1"=="--experimental-jit-interpreter-off" (set UseTIER2=6) & shift & goto CheckOpts
if "%~1"=="--without-remote-debug" (set DisableRemoteDebug=true) & shift & goto CheckOpts
if "%~1"=="--pystats" (set PyStats=1) & shift & goto CheckOpts
if "%~1"=="--tail-call-interp" (set UseTailCallInterp=true) & shift & goto CheckOpts
rem These use the actual property names used by MSBuild.  We could just let
rem them in through the environment, but we specify them on the command line
rem anyway for visibility so set defaults after this
if "%~1"=="-e" (set IncludeExternals=true) & shift & goto CheckOpts
if "%~1"=="-E" (set IncludeExternals=false) & shift & goto CheckOpts
if "%~1"=="--no-ctypes" (set IncludeCTypes=false) & shift & goto CheckOpts
if "%~1"=="--no-ssl" (set IncludeSSL=false) & shift & goto CheckOpts
if "%~1"=="--no-tkinter" (set IncludeTkinter=false) & shift & goto CheckOpts

if "%IncludeExternals%"=="" set IncludeExternals=true
if "%IncludeCTypes%"=="" set IncludeCTypes=true
if "%IncludeSSL%"=="" set IncludeSSL=true
if "%IncludeTkinter%"=="" set IncludeTkinter=true
if "%UseJIT%" NEQ "true" set IncludeLLVM=false

if "%IncludeExternals%"=="true" call "%dir%get_externals.bat"

if "%do_pgo%" EQU "true" if "%platf%" EQU "x64" (
    if "%PROCESSOR_ARCHITEW6432%" NEQ "AMD64" if "%PROCESSOR_ARCHITECTURE%" NEQ "AMD64" (
        echo.ERROR: Cannot cross-compile with PGO 
        echo.       32bit operating system detected. Ensure your PROCESSOR_ARCHITECTURE
        echo.       and PROCESSOR_ARCHITEW6432 environment variables are correct.
        exit /b 1 
    )
)

if "%UseDisableGil%" EQU "true" if "%UseTIER2%" NEQ "" (
    rem GH-133171: This configuration builds the JIT but never actually uses it,
    rem which is surprising (and strictly worse than not building it at all):
    echo.ERROR: --experimental-jit cannot be used with --disable-gil.
    exit /b 1
)

if not exist "%GIT%" where git > "%TEMP%\git.loc" 2> nul && set /P GIT= < "%TEMP%\git.loc" & del "%TEMP%\git.loc"
if exist "%GIT%" set GITProperty=/p:GIT="%GIT%"
if not exist "%GIT%" echo Cannot find Git on PATH & set GITProperty=

rem Setup the environment
call "%dir%find_msbuild.bat" %MSBUILD%
if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)

call "%dir%find_python.bat" %PYTHON%
if ERRORLEVEL 1 (echo Cannot locate python.exe on PATH or as PYTHON variable & exit /b 3)
set PythonForBuild=%PYTHON%

if "%kill%"=="true" call :Kill
if ERRORLEVEL 1 exit /B %ERRORLEVEL%

if "%regen%"=="true" goto :Regen

if "%do_pgo%"=="true" (
    set conf=PGInstrument
    call :Build %1 %2 %3 %4 %5 %6 %7 %8 %9
)
rem %VARS% are evaluated eagerly, which would lose the ERRORLEVEL
rem value if we didn't split it out here.
if "%do_pgo%"=="true" if ERRORLEVEL 1 exit /B %ERRORLEVEL%
if "%do_pgo%"=="true" (
    del /s "%dir%\*.pgc"
    del /s "%dir%\..\Lib\*.pyc"
    echo on
    call "%dir%\..\python.bat" %pgo_job%
    @echo off
    call :Kill
    set conf=PGUpdate
    set target=Build
)
goto :Build

:Kill
echo on
%MSBUILD% "%dir%\pythoncore.vcxproj" /t:KillPython %verbose%^
 /p:Configuration=%conf% /p:Platform=%platf%^
 /p:KillPython=true

@echo off
exit /B %ERRORLEVEL%

:Regen
echo on
%MSBUILD% "%dir%\pythoncore.vcxproj" /t:Regen %verbose%^
 /p:Configuration=%conf% /p:Platform=%platf%^
 /p:ForceRegen=true

@echo off
exit /B %ERRORLEVEL%

:Build
rem Call on MSBuild to do the work, echo the command.
rem Passing %1-9 is not the preferred option, but argument parsing in
rem batch is, shall we say, "lackluster"
echo on
%MSBUILD% "%dir%pcbuild.proj" /t:%target% %parallel% %verbose%^
 /p:Configuration=%conf% /p:Platform=%platf%^
 /p:IncludeExternals=%IncludeExternals%^
 /p:IncludeCTypes=%IncludeCTypes%^
 /p:IncludeSSL=%IncludeSSL% /p:IncludeTkinter=%IncludeTkinter%^
 /p:DisableGil=%UseDisableGil%^
 /p:UseTestMarker=%UseTestMarker% %GITProperty%^
 /p:UseJIT=%UseJIT%^
 /p:UseTIER2=%UseTIER2%^
 /p:PyStats=%PyStats%^
 /p:UseTailCallInterp=%UseTailCallInterp%^
 /p:DisableRemoteDebug=%DisableRemoteDebug%^
 %1 %2 %3 %4 %5 %6 %7 %8 %9

@echo off
exit /b %ERRORLEVEL%

:Version
rem Display the current build version information
call "%dir%find_msbuild.bat" %MSBUILD%
if ERRORLEVEL 1 (echo Cannot locate MSBuild.exe on PATH or as MSBUILD variable & exit /b 2)
%MSBUILD% "%dir%pythoncore.vcxproj" /t:ShowVersionInfo /v:m /nologo %1 %2 %3 %4 %5 %6 %7 %8 %9
if ERRORLEVEL 1 exit /b 3