#----------------------------------*-sh-*--------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     |
#   \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
#    \\/     M anipulation  | Copyright (C) 2016-2018 OpenCFD Ltd.
#------------------------------------------------------------------------------
# License
#     This file is part of OpenFOAM, licensed under GNU General Public License
#     <http://www.gnu.org/licenses/>.
#
# File
#     etc/config.sh/settings
#     - sourced by OpenFOAM-*/etc/bashrc
#
# Description
#     Settings for OpenFOAM.
#
#------------------------------------------------------------------------------
export WM_ARCH=$(uname -s)                  # System name
: ${WM_OSTYPE:=POSIX}; export WM_OSTYPE     # System type (POSIX is default)

# Default compiler = gcc/g++ and C++11
export WM_CC="gcc"
export WM_CXX="g++"
export WM_CFLAGS="-fPIC"
export WM_CXXFLAGS="-fPIC -std=c++11"
unset WM_COMPILER_ARCH WM_COMPILER_LIB_ARCH WM_LDFLAGS

# Adjust according to system and architecture
case "$WM_ARCH" in
Linux)
    WM_ARCH=linux

    case $(uname -m) in
    i686)
        export WM_ARCH_OPTION=32
        ;;

    x86_64)
        : ${WM_ARCH_OPTION:=64}; export WM_ARCH_OPTION  # Default to 64-bit
        case "$WM_ARCH_OPTION" in
        32)
            export WM_COMPILER_ARCH=64
            export WM_CFLAGS="$WM_CFLAGS -m32"
            export WM_CXXFLAGS="$WM_CXXFLAGS -m32"
            export WM_LDFLAGS="-m32"
            ;;
        64)
            WM_ARCH=linux64
            export WM_COMPILER_LIB_ARCH=64
            export WM_CFLAGS="$WM_CFLAGS -m64"
            export WM_CXXFLAGS="$WM_CXXFLAGS -m64"
            export WM_LDFLAGS="-m64"
            ;;
        *)
            echo "Unknown WM_ARCH_OPTION '$WM_ARCH_OPTION', should be 32|64" 1>&2
            ;;
        esac
        ;;

    ia64)
        WM_ARCH=linuxIA64
        ;;

    armv7l)
        WM_ARCH=linuxARM7
        export WM_ARCH_OPTION=32
        export WM_COMPILER_LIB_ARCH=32
        ;;

    aarch64)
        WM_ARCH=linuxARM64
        export WM_ARCH_OPTION=64
        export WM_COMPILER_LIB_ARCH=64
        ;;

    ppc64)
        WM_ARCH=linuxPPC64
        export WM_COMPILER_LIB_ARCH=64
        export WM_CFLAGS="$WM_CFLAGS -m64"
        export WM_CXXFLAGS="$WM_CXXFLAGS -m64"
        export WM_LDFLAGS="-m64"
        ;;

    ppc64le)
        WM_ARCH=linuxPPC64le
        export WM_COMPILER_LIB_ARCH=64
        export WM_CFLAGS="$WM_CFLAGS -m64"
        export WM_CXXFLAGS="$WM_CXXFLAGS -m64"
        export WM_LDFLAGS="-m64"
        ;;

    *)
        echo Unknown processor type $(uname -m) for Linux 1>&2
        ;;
    esac
    ;;

SunOS)
    WM_ARCH=SunOS64
    WM_MPLIB=FJMPI
    export WM_COMPILER_LIB_ARCH=64
    export WM_CFLAGS="$WM_CFLAGS -mabi=64"
    export WM_CXXFLAGS="$WM_CXXFLAGS -mabi=64"
    export WM_LDFLAGS="-mabi=64 -G0"
    ;;

*)  # An unsupported operating system
    /bin/cat << UNSUPPORTED_OS 1>&2
===============================================================================
Your '$WM_ARCH' operating system is unsupported by this OpenFOAM release.
For further assistance, please contact www.OpenFOAM.com
===============================================================================
UNSUPPORTED_OS
    ;;
esac

#------------------------------------------------------------------------------

# [FOAM_JOB_DIR] - unset is equivalent to ~/.OpenFOAM/jobControl
## export FOAM_JOB_DIR="$HOME/.OpenFOAM/jobControl"

# wmake configuration
export WM_DIR=$WM_PROJECT_DIR/wmake
export WM_LINK_LANGUAGE=c++
export WM_LABEL_OPTION=Int$WM_LABEL_SIZE
export WM_OPTIONS=$WM_ARCH$WM_COMPILER$WM_PRECISION_OPTION$WM_LABEL_OPTION$WM_COMPILE_OPTION

# Base executables/libraries
export FOAM_APPBIN=$WM_PROJECT_DIR/platforms/$WM_OPTIONS/bin
export FOAM_LIBBIN=$WM_PROJECT_DIR/platforms/$WM_OPTIONS/lib

# External (ThirdParty) libraries
export FOAM_EXT_LIBBIN=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER$WM_PRECISION_OPTION$WM_LABEL_OPTION/lib

# Site-specific (group) files
if [ -n "$WM_PROJECT_SITE" ]
then
    siteDir=$WM_PROJECT_SITE
else
    siteDir=$WM_PROJECT_INST_DIR/site
fi

# Shared site (group) executables/libraries
export FOAM_SITE_APPBIN=$siteDir/$WM_PROJECT_VERSION/platforms/$WM_OPTIONS/bin
export FOAM_SITE_LIBBIN=$siteDir/$WM_PROJECT_VERSION/platforms/$WM_OPTIONS/lib

# User executables/libraries
export FOAM_USER_APPBIN=$WM_PROJECT_USER_DIR/platforms/$WM_OPTIONS/bin
export FOAM_USER_LIBBIN=$WM_PROJECT_USER_DIR/platforms/$WM_OPTIONS/lib

# [FOAM_CODE_TEMPLATES] - dynamicCode templates
# * fallback == "foamEtcFile -list codeTemplates/dynamicCode"
# export FOAM_CODE_TEMPLATES=$WM_PROJECT_DIR/etc/codeTemplates/dynamicCode

# Convenience
export FOAM_ETC=$WM_PROJECT_DIR/etc
export FOAM_APP=$WM_PROJECT_DIR/applications
export FOAM_SRC=$WM_PROJECT_DIR/src
export FOAM_TUTORIALS=$WM_PROJECT_DIR/tutorials
export FOAM_UTILITIES=$WM_PROJECT_DIR/applications/utilities
export FOAM_SOLVERS=$WM_PROJECT_DIR/applications/solvers
export FOAM_RUN=$WM_PROJECT_USER_DIR/run

# Add wmake to the path - not required for runtime-only environment
[ -d "$WM_DIR" ] && PATH=$WM_DIR:$PATH
# Add OpenFOAM scripts to the path
export PATH=$WM_PROJECT_DIR/bin:$PATH

# Add site-specific scripts to path - only if they exist
if [ -d "$siteDir/bin" ]                        # Generic
then
    _foamAddPath "$siteDir/bin"
fi
if [ -d "$siteDir/$WM_PROJECT_VERSION/bin" ]    # Version-specific
then
    _foamAddPath "$siteDir/$WM_PROJECT_VERSION/bin"
fi
unset siteDir

_foamAddPath $FOAM_USER_APPBIN:$FOAM_SITE_APPBIN:$FOAM_APPBIN
_foamAddLib  $FOAM_LIBBIN/dummy     # Dummy versions of external libraries last
if [ -n "$FOAM_EXT_LIBBIN" ]        # External libraries (allowed to be unset)
then
    _foamAddLib $FOAM_EXT_LIBBIN
fi
_foamAddLib  $FOAM_USER_LIBBIN:$FOAM_SITE_LIBBIN:$FOAM_LIBBIN

#------------------------------------------------------------------------------

# Compiler settings
# ~~~~~~~~~~~~~~~~~

# Default to system compiler
: ${WM_COMPILER_TYPE:=system}; export WM_COMPILER_TYPE

# Adjust for non-gcc compilers
case "$WM_COMPILER" in
Clang*)    # Clang compiler suite
    export WM_CC='clang'
    export WM_CXX='clang++'
    ;;
Cray*)     # Cray system compilers
    export WM_CC='cc'
    export WM_CXX='CC'
    ;;
Icc*)      # Intel compilers
    export WM_CC='icc'
    export WM_CXX='icpc'
    ;;
Arm*)     # Arm system compilers
    export WM_CC='armclang'
    export WM_CXX='armclang++'
    ;;
esac

# Clear prior to sourcing
unset gcc_version gmp_version mpfr_version mpc_version
unset GMP_ARCH_PATH MPFR_ARCH_PATH

# Load pre-defined compiler versions
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_foamEtc -config compiler

# ThirdParty base for compilers
archDir=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER_ARCH

case "$WM_COMPILER_TYPE-$WM_COMPILER" in
ThirdParty-Gcc*)
    gccDir=$archDir/$gcc_version
    gmpDir=$archDir/${gmp_version:-gmp-system}
    mpfrDir=$archDir/${mpfr_version:-mpfr-system}
    mpcDir=$archDir/${mpc_version:-mpc-system}

    # Check that the compiler directory can be found
    [ -d "$gccDir" ] || /bin/cat << GCC_NOT_FOUND 1>&2
===============================================================================
Warning in $WM_PROJECT_DIR/etc/config.sh/settings:
Cannot find '$WM_COMPILER' compiler installation
    $gccDir

    Either install this compiler version, or use the system compiler by setting
    WM_COMPILER_TYPE to 'system' in \$WM_PROJECT_DIR/etc/bashrc.
===============================================================================
GCC_NOT_FOUND

    _foamAddMan     $gccDir/man
    _foamAddPath    $gccDir/bin

    # Add ThirdParty compiler libraries to run-time environment
    _foamAddLib     $gccDir/lib$WM_COMPILER_LIB_ARCH

    # Add gmp/mpfr/mpc libraries to run-time environment.
    # Require that they exist, automatically find lib64/ or lib/.
    _foamAddLibAuto $gmpDir   && \
        export GMP_ARCH_PATH=$gmpDir    # For non-system CGAL

    _foamAddLibAuto $mpfrDir && \
        export MPFR_ARCH_PATH=$mpfrDir  # For non-system CGAL

    _foamAddLibAuto $mpcDir

    if [ "$FOAM_VERBOSE" -a "$PS1" ]
    then
        echo "Using ThirdParty compiler"
        echo "    ${gccDir##*/}  (${gmpDir##*/}  $${mpfrDir##*/}  ${mpcDir##*/})"
    fi
    ;;

ThirdParty-Clang*)
    clangDir=$archDir/$clang_version

    # Check that the compiler directory can be found
    [ -d "$clangDir" ] || /bin/cat << CLANG_NOT_FOUND 1>&2
===============================================================================
Warning in $WM_PROJECT_DIR/etc/config.sh/settings:
Cannot find '$WM_COMPILER' compiler installation
    $clangDir

    Either install this compiler version, or use the system compiler by setting
    WM_COMPILER_TYPE to 'system' in \$WM_PROJECT_DIR/etc/bashrc.
===============================================================================
CLANG_NOT_FOUND

    _foamAddMan     $clangDir/share/man
    _foamAddPath    $clangDir/bin
    _foamAddLib     $clangDir/lib  # For things like libomp (openmp) etc

    if [ "$FOAM_VERBOSE" -a "$PS1" ]
    then
        echo "Using ThirdParty compiler"
        echo "    ${clangDir##*/}"
    fi
    ;;

system-* | ThirdParty-*)
    # Using system compiler or other ThirdParty compiler
    ;;

*)
    /bin/cat << UNKNOWN_TYPE 1>&2
===============================================================================
Unknown WM_COMPILER_TYPE="$WM_COMPILER_TYPE" - treating as 'system'
Please check your settings
===============================================================================
UNKNOWN_TYPE
    export WM_COMPILER_TYPE=system
    ;;

esac

# Cleanup
# ~~~~~~~
unset archDir
unset gcc_version gccDir
unset gmp_version gmpDir  mpfr_version mpfrDir  mpc_version mpcDir
unset clang_version clangDir

#------------------------------------------------------------------------------