Update build.bat

build.bat

-powershell -Command "Invoke-WebRequest https://aka.ms/vs/16/release/vs_buildtools.exe -OutFile C:\TEMP\vs_buildtools.exe"
 SET "CURRENTDIR=%cd%"
 SET "BUILDDIR=%CURRENTDIR%\build"
 SET "BUILDTOOLSDIR=%BUILDDIR%\buildtools"
+SET "VCVARSBAT=%BUILDTOOLSDIR%\VC\Auxiliary\Build\vcvars64.bat"
+SET "SIPDIR=%BUILDDIR%\sip-4.19.3"
 SET "SIPINSTALLDIR=%BUILDDIR%\sipinstall"
+SET "vs_buildtoolsexe=%TEMP%\vs_buildtools.exe"
+SET "FBXSDKDIR=%BUILDDIR%\fbxsdk"
+SET "FBXSDKPYTHONDIR=%BUILDDIR%\fbxsdkpy"
 mkdir "%BUILDDIR%"
 mkdir "%BUILDTOOLSDIR%"
 mkdir "%SIPINSTALLDIR%"
-C:\TEMP\vs_buildtools.exe --quiet --wait --norestart --nocache --installPath "%BUILDTOOLSDIR%" --add Microsoft.VisualStudio.Workload.AzureBuildTools --remove Microsoft.VisualStudio.Component.Windows10SDK.10240 --remove Microsoft.VisualStudio.Component.Windows10SDK.10586 --remove Microsoft.VisualStudio.Component.Windows10SDK.14393 --remove Microsoft.VisualStudio.Component.Windows81SDK --add Microsoft.VisualStudio.Workload.VCTools --add Microsoft.VisualStudio.Component.VC.Tools.x86.x64 || IF "%ERRORLEVEL%"=="3010" EXIT 0
-"$BUILDTOOLSDIR"\
-tar xvf sip-4.19.3.tar.gz -C "$BUILDDIR"
-cd "$BUILDDIR"\sip-*
-python  "configure.py" -b "$SIPINSTALLDIR" -d "$SIPINSTALLDIR" -e "$SIPINSTALLDIR" --pyidir="$SIPINSTALLDIR"
-nmake
+mkdir "%FBXSDKDIR%"
+mkdir "%FBXSDKPYTHONDIR%"
+
+echo "Download and install Visual Studio Build Tools (nmake, MSVC, link, etc.)"
+
+::Invoke-WebRequest https://aka.ms/vs/16/release/vs_buildtools.exe -OutFile %vs_buildtoolsexe%
+::curl -o %vs_buildtoolsexe% https://aka.ms/vs/16/release/vs_buildtools.exe
+
+::%vs_buildtoolsexe% --quiet --wait --norestart --nocache --installPath "%BUILDTOOLSDIR%" --remove Microsoft.VisualStudio.Component.Windows10SDK.10240 --remove Microsoft.VisualStudio.Component.Windows10SDK.10586 --remove Microsoft.VisualStudio.Component.Windows10SDK.14393 --remove Microsoft.VisualStudio.Component.Windows81SDK --add Microsoft.VisualStudio.Workload.VCTools --add Microsoft.VisualStudio.Component.VC.Tools.x86.x64 --add Microsoft.VisualStudio.Component.Windows10SDK || IF "%ERRORLEVEL%"=="3010" EXIT 0
+
+
+echo "Load environment variables to use Build Tools from this script"
+call %VCVARSBAT%
+
+for /F "tokens=1,2 delims=;" %%i in (reqs_win.txt) do (
+	SET "INSTALLEXE=%BUILDDIR%\%%i.exe"
+	SET "INSTALLDIR=%BUILDDIR%\%%i"
+	echo "%INSTALLEXE%"
+	echo "%INSTALLDIR%"
+	echo "Downloading %%j to %%i"
+	::curl -L -o "%INSTALLEXE%" %%j
+	::%INSTALLEXE% /S /D=%INSTALLDIR%
+)
+
+
+::tar xvf sip-4.19.3.tar.gz -C "%BUILDDIR%"
+::cd "%BUILDDIR%"\sip-*
+::python  "configure.py" -b "%SIPINSTALLDIR%" -d "%SIPINSTALLDIR%" -e "%SIPINSTALLDIR%" --pyidir="%SIPINSTALLDIR%"
+::nmake
+::nmake install
+::cd %CURRENTDIR%
+
+