:: This script returns the machine dependent compile options needed
:: to compile and link applications using the ROOT libraries.

:: Author: Bertrand Bellenot, 28/10/2020

@echo off
setlocal EnableDelayedExpansion

set "usage="
for %%u in (
   "Usage: root-config [--prefix] [--version] [--cflags] [--libs] [--glibs]"
   " [--evelibs] [--bindir] [--libdir] [--incdir] [--etcdir] [--tutdir]"
   " [--has-<feature>] [--arch] [--platform] [--config] [--features] [--ncpu]"
   " [--git-revision] [--python-version] [--python2-version] [--python3-version]"
   " [--cc] [--cxx] [--f77] [--ld ] [--help]"
) do set usage=!usage!%%~u^


if "%1"=="" (
   echo !usage! 1>&2
   exit /b 1
)

for %%i in ("%~dp0..") do set "folder=%%~fi"

set ROOTSYS=%folder%
set prefix=%ROOTSYS%
set arch=@architecture@
set platform=@CMAKE_SYSTEM@
set bindir=%ROOTSYS%\bin
set libdir=%ROOTSYS%\lib
set incdir=%ROOTSYS%\include
set etcdir=%ROOTSYS%\etc
set tutdir=%ROOTSYS%\tutorials
set all_features=@all_features@
set features=@features@
set configargs="@configargs@"
set altcc=@altcc@
set altcxx=@altcxx@
set altf77=@altf77@
set altld=@altld@

set srcdir=@top_srcdir@
rem convert forward slashes to backslashes
set srcdir=!srcdir:/=\!

set cflags=-nologo @BLDCFLAGS@ -EHsc- -W3 -D_WIN32
set cxxflags=-nologo @BLDCXXFLAGS@ -EHsc- -W3 -D_WIN32
if "@BLDCFLAGS@"=="-MDd" (
    set cflags=!cflags! -Od -Z7
    set cxxflags=!cxxflags! -Od -Z7
) else (
    set cflags=!cflags! -O2
    set cxxflags=!cxxflags! -O2
)

set rootglibs=libGui.lib
set rootevelibs=libEve.lib libEG.lib libGeom.lib libGed.lib libRGL.lib
set rootlibs=libCore.lib libImt.lib libRIO.lib libNet.lib libHist.lib libGraf.lib libGraf3d.lib libGpad.lib libROOTVecOps.lib libTree.lib libTreePlayer.lib libRint.lib libPostscript.lib libMatrix.lib libPhysics.lib libMathCore.lib libThread.lib

set out=
set err=0

for %%w in (%*) do (
   set arg=%%w
   if "!arg!"=="--arch" (
      rem Output the architecture
      set out=!out! !arch!
   )
   if "!arg!"=="--platform" (
      rem Output the platform (OS)
      set out=!out! !platform!
   )
   if "!arg:~0,6!"=="--has-" (
      rem Check for feature
      set feature=!arg:~6!
      set res=""
      set known=""
      for %%f in (%features%) do (
         if %%f==!feature! (
            set res=%%f
            if not "!out!"=="" (
               set out=!out! yes
            ) else (
               set out=yes
            )
         )
      )
      if !res!=="" (
         for %%f in (%all_features%) do (
            if %%f==!feature! (
               set known=%%f
            )
         )
         if !known!=="" (
            set out=!out! --has-!feature!: unknown feature^^!
            set err=1
         ) else (
            if not "!out!"=="" (
               set out=!out! no
            ) else (
               set out=no
            )
         )
      )
   )
   if "!arg!"=="--prefix" (
      rem Output the prefix
      set out=!out! !prefix!
   )
   if "!arg!"=="--version" (
      set out=!out! @ROOT_VERSION@
   )
   if "!arg!"=="--git-revision" (
      if exist !etcdir!\gitinfo.txt (
         for /f "skip=1" %%l in (!etcdir!\gitinfo.txt) do (
            set ROOT_GIT_COMMIT=%%~l
            goto COMMITSET
         )
      ) else (
         echo "cannot read !etcdir!\gitinfo.txt"
         exit /b 1
      )
      :COMMITSET
      set out=!out! !ROOT_GIT_COMMIT!
   )
   if "!arg!"=="--python-version" (
      set out=!out! @pythonvers@
   )
   if "!arg!"=="--python2-version" (
      set out=!$out! @python2vers@
   )
   if "!arg!"=="--python3-version" (
      set out=!$out! @python3vers@
   )
   if "!arg!"=="--cflags" (
      set out=!out! !cxxflags! -I!incdir!
   )
   if "!arg!"=="--libs" (
      set out=!out! /link -LIBPATH:!libdir! !rootlibs!
   )
   if "!arg!"=="--glibs" (
      set out=!out! /link -LIBPATH:!libdir! !rootlibs! !rootglibs!
   )
   if "!arg!"=="--evelibs" (
      set out=!out! /link -LIBPATH:!libdir! !rootlibs! !rootglibs! !rootevelibs!
   )
   if "!arg!"=="--bindir" (
      set out=!out! !bindir!
   )
   if "!arg!"=="--libdir" (
      set out=!out! !libdir!
   )
   if "!arg!"=="--incdir" (
      set out=!out! !incdir!
   )
   if "!arg!"=="--etcdir" (
      set out=!out! !etcdir!
   )
   if "!arg!"=="--tutdir" (
      set out=!out! !tutdir!
   )
   if "!arg!"=="--srcdir" (
      rem output the src directory
      set out=!out! !srcdir!
   )
   if "!arg!"=="--config" (
      rem output the configure arguments
      set out=!out! !configargs!
   )
   if "!arg!"=="--features" (
      rem output all supported features
      set out=!out!!features!
   )
   if "!arg!"=="--ncpu" (
      rem number of available cores
      set out=!out! %NUMBER_OF_PROCESSORS%
   )
   if "!arg!"=="--cc" (
      rem output used C compiler
      set out=!out! !altcc!
   )
   if "!arg!"=="--cxx" (
      rem output used C++ compiler
      set out=!out! !altcxx!
   )
   if "!arg!"=="--f77" (
      rem output used Fortran compiler
      set out=!out! !altf77!
   )
   if "!arg!"=="--ld" (
      rem output used Linker
      set out=!out! !altld!
   )
   if "!arg!"=="--help" (
      rem Print a help message
      goto print_help
   )
)

if "!out!"=="" (
   set err=1
   echo !arg!: Unknown option or argument^^!
   echo.
   goto print_help
)
echo !out!

exit /b !err!

:print_help

echo Usage: %0 [options]
echo.
echo   --arch                Print the architecture (compiler/OS)
echo   --platform            Print the platform (OS)
echo   --prefix              Print the prefix
echo   --libs                Print regular ROOT libraries
echo   --glibs               Print regular + GUI ROOT libraries
echo   --evelibs             Print regular + GUI + Eve libraries
echo   --cflags              Print compiler flags and header path
echo   --bindir              Print the executable directory
echo   --libdir              Print the library directory
echo   --incdir              Print the header directory
echo   --etcdir              Print the configuration directory
echo   --tutdir              Print the tutorials directory
echo   --srcdir              Print the top of the original source directory
echo   --auxlibs             Print auxiliary libraries
echo   --config              Print arguments used for configuration with CMake
echo   --features            Print list of all supported features
echo   --has-^<feature^>       Test if ^<feature^> is compiled in
echo   --version             Print the ROOT version
echo   --git-revision        Print the ROOT git revision number
echo   --python-version      Print the Python version used by ROOT
echo   --python2-version     Print the Python2 version used by PyROOT
echo   --python3-version     Print the Python3 version used by PyROOT
echo   --ncpu                Print number of available (hyperthreaded) cores
echo   --cc                  Print alternative C compiler specified when ROOT was built
echo   --cxx                 Print alternative C++ compiler specified when ROOT was built
echo   --f77                 Print alternative Fortran compiler specified when ROOT was built
echo   --ld                  Print alternative Linker specified when ROOT was built
echo   --help                Print this message

exit /b !err!