gen-buildsys-win.bat

@if "%_echo%" neq "on" echo off
rem
rem This file invokes cmake and generates the build system for windows.

set argC=0
for %%x in (%*) do Set /A argC+=1

if NOT %argC%==3 GOTO :USAGE
if %1=="/?" GOTO :USAGE

setlocal
set __sourceDir=%~dp0
set __ExtraCmakeParams=

if "%__VSVersion%" == "vs2019" (
  :: CMAKE 3.14 or later is required to use VS2019
  set __VSString=16 2019
) else (
  :: VS 2017 is the minimum supported toolset
  set __VSString=15 2017
)

if /i "%3" == "x64"     (set __ExtraCmakeParams=%__ExtraCmakeParams% -A x64)
if /i "%3" == "x86"     (set __ExtraCmakeParams=%__ExtraCmakeParams% -A Win32)
if /i "%3" == "arm"     (set __ExtraCmakeParams=%__ExtraCmakeParams% -A ARM)
if /i "%3" == "arm64"   (set __ExtraCmakeParams=%__ExtraCmakeParams% -A ARM64)
if /i "%3" == "wasm"    (set __sourceDir=%~dp0..\Unix && goto DoGen)

:: cmake requires forward slashes in paths
set __cmakeRepoRoot=%__repoRoot:\=/%
set __ExtraCmakeParams=%__ExtraCmakeParams% "-DCMAKE_REPO_ROOT=%__cmakeRepoRoot%"

if defined CMakePath goto DoGen

:: Eval the output from probe-win1.ps1
pushd "%__sourceDir%"
for /f "delims=" %%a in ('powershell -NoProfile -ExecutionPolicy ByPass "& .\probe-win.ps1"') do %%a
popd

:DoGen

if "%3" == "wasm" (
    if "%EMSDK_PATH%" == "" (
       echo "Error: Should set EMSDK_PATH environment variable pointing to emsdk root."
       exit /B 1
    )

    if "%EMSCRIPTEN_ROOT%" == "" (
      set EMSCRIPTEN_ROOT="%EMSDK_PATH/upstream/emscripten%"
    )
    emcmake cmake "-DEMSCRIPTEN_GENERATE_BITCODE_STATIC_LIBRARIES=1" "-DCMAKE_REPO_ROOT=%__cmakeRepoRoot%" "-DCMAKE_TOOLCHAIN_FILE=%EMSCRIPTEN%/cmake/Modules/Platform/Emscripten.cmake" "-DCMAKE_BUILD_TYPE=%CMAKE_BUILD_TYPE%" -G "NMake Makefiles" %__sourceDir%
) else (
    "%CMakePath%" %__SDKVersion% "-DCMAKE_BUILD_TYPE=%CMAKE_BUILD_TYPE%" "-DCMAKE_INSTALL_PREFIX=%__CMakeBinDir%" -G "Visual Studio %__VSString%" -B. -H%1 %__ExtraCmakeParams%
)
endlocal
GOTO :DONE

:USAGE
  echo "Usage..."
  echo "gen-buildsys-win.bat <path to top level CMakeLists.txt> <VSVersion> <Target Architecture>"
  echo "Specify the path to the top level CMake file"
  echo "Specify the VSVersion to be used - VS2017"
  echo "Specify the Target Architecture - AnyCPU, x86, x64, ARM, or ARM64."
  EXIT /B 1

:DONE
  EXIT /B 0