init_x86_64.sh

#!/bin/bash

# Determine which OS you are using
if [ "$(uname)" = "Linux" ]; then
    if [ "$( cat /etc/*-release | grep "CentOS Linux 7" )" ]; then
        echo "Detected CentOS Linux 7"
        OS=centos7
    elif [ "$( cat /etc/*-release | grep "CentOS Linux 8" )" ] || [ "$( cat /etc/*-release | grep "CentOS Stream release 8" )" ]; then
        echo "Detected CentOS Linux 8"
        OS=centos8
    else
        echo "Cannot detect OS, falling back to CentOS7"
        OS=centos7
    fi
elif [ "$(uname)" = "Darwin" ]; then
    MACOS_MAJOR=$(sw_vers -productVersion | awk -F '.' '{print $1}')
    MACOS_MINOR=$(sw_vers -productVersion | awk -F '.' '{print $2}')
    if [ $MACOS_MAJOR = "11" ]; then
        OS=mac11
    elif [ "${MACOS_MAJOR}.${MACOS_MINOR}" = "10.15" ]; then
        OS=mac1015
    else
        echo "Unsupported version of macOS ${MACOS_MAJOR}.${MACOS_MINOR}"
        exit 1
    fi
else
    echo "Unknown OS"
    exit 1
fi

# Determine is you have CVMFS installed
CVMFS_MOUNT=""
if [ "$OS" = mac1015 ] || [ "$OS" = mac11 ] ; then
    CVMFS_MOUNT="/Users/Shared"
fi

if [ ! -d "${CVMFS_MOUNT}/cvmfs" ]; then
    echo "No CVMFS detected, please install it. Looking at ${CVMFS_MOUNT}/cvmfs"
    exit 1
fi

# Determine which LCG version to use
DEFAULT_LCG="LCG_101"

if [ -z ${RES_LCG_VERSION} ]; then
    echo "No explicit LCG version set, using ${DEFAULT_LCG}."
    RES_LCG_VERSION=${DEFAULT_LCG}
fi

# Determine which compiler to use
if [ -z ${COMPILER_TYPE} ]; then
    if [ "$(uname)" = "Darwin" ]; then
        COMPILER_TYPE="llvm"
        echo "No compiler type set, falling back to AppleClang."
    else
        echo "No compiler type set, falling back to GCC."
        COMPILER_TYPE="gcc"
    fi
fi
if [ ${COMPILER_TYPE} = "gcc" ]; then
    COMPILER_VERSION="gcc11"
    echo "Compiler type set to GCC, version ${COMPILER_VERSION}."
fi
if [ ${COMPILER_TYPE} = "llvm" ]; then
    if [ "$(uname)" = "Darwin" ]; then
        COMPILER_VERSION="clang120"
    else
        COMPILER_VERSION="clang12"
    fi
    echo "Compiler type set to LLVM, version ${COMPILER_VERSION}."
fi

# Choose build type
if [ -z ${BUILD_TYPE} ]; then
    BUILD_TYPE=opt
fi

# General variables
SFTREPO=${CVMFS_MOUNT}/cvmfs/sft.cern.ch
export BUILD_FLAVOUR=x86_64-${OS}-${COMPILER_VERSION}-${BUILD_TYPE}

#--------------------------------------------------------------------------------
#     Source dependencies
#--------------------------------------------------------------------------------

export LCG_VIEW=${SFTREPO}/lcg/views/${RES_LCG_VERSION}/${BUILD_FLAVOUR}/setup.sh
source ${LCG_VIEW} || echo "yes"

if [ -n "${CI}" ] && [ "$(uname)" = "Darwin" ]; then
    source $ROOTSYS/bin/thisroot.sh
    cd $G4INSTALL/bin/
    source geant4.sh
    cd -
fi