setenv

#! /bin/bash

export WORKSPACE=$(dirname $(readlink -f ${BASH_SOURCE[0]}))
export ENV="$WORKSPACE/env"

export IS_SETENV=1

export OLD_PATH=$PATH
export OLD_LD_LIBRARY_PATH=$LD_LIBRARY_PATH
export OLD_LC_ALL=$LC_ALL
export OLD_LDFLAGS=$LDFLAGS
export OLD_PS1=$PS1
export OLD_CC=$CC
export OLD_CXX=$CXX
export OLD_VCPKG_ROOT=$VCPKG_ROOT

unsetenv() {
    # reset old environment variables
    if [[ -n "$OLD_PATH" ]]; then
        export PATH="$OLD_PATH"
    fi
    unset OLD_PATH
    if [[ -n "$OLD_LD_LIBRARY_PATH" ]]; then
        export LD_LIBRARY_PATH=$OLD_LD_LIBRARY_PATH
    else
        unset LD_LIBRARY_PATH
    fi
    unset OLD_LD_LIBRARY_PATH

    if [[ -n "$OLD_LC_ALL" ]]; then
        export LC_ALL="$OLD_LC_ALL"
    else
        unset LC_ALL
    fi
    unset OLD_LC_ALL


    if [[ -n "$OLD_CC" ]]; then
        export CC=$OLD_CC
    else
        unset CC
    fi
    unset OLD_CC

    if [[ -n "$OLD_CXX" ]]; then
        export CXX=$OLD_CXX
    else
        unset CXX
    fi
    unset OLD_CXX

    if [[ -n "$OLD_LDFLAGS" ]]; then
        export LDFLAGS=$OLD_LDFLAGS
    else
        unset LDFLAGS
    fi
    unset OLD_LDFLAGS

    if [[ -n "$OLD_VCPKG_ROOT" ]]; then
        export VCPKG_ROOT=$OLD_VCPKG_ROOT
    fi
    unset OLD_VCPKG_ROOT
    # Call hash to forget past commands. Without forgetting
    # past commands the $PATH changes we made may not be respected
    hash -r 2> /dev/null

    if [[ -n "$OLD_PS1" ]]; then
        export PS1=$OLD_PS1
    fi
    unset OLD_PS1

    unset IS_SETENV
}

# point to workspace GCC if it exists in workspace
if [[ ! -z $(ls -A "${WORKSPACE}/env/gcc") ]]; then
    export PATH="$WORKSPACE/env/gcc/bin:$PATH"
    if [[ ! -z $LD_LIBRARY_PATH ]]; then
      export LD_LIBRARY_PATH="$WORKSPACE/env/gcc/lib:$WORKSPACE/env/gcc/lib64:$LD_LIBRARY_PATH"
    else
      export LD_LIBRARY_PATH="$WORKSPACE/env/gcc/lib:$WORKSPACE/env/gcc/lib64"
    fi

    # set default path C/C++ compiler to point to new gcc compiler
    export CC="$WORKSPACE/env/gcc/bin/gcc"
    export CXX="$WORKSPACE/env/gcc/bin/g++"
else
    echo "Warning. No gcc detected in current workspace. No environment variable will be modified"
fi

#  set environment variables for
export VCPKG_ROOT="$WORKSPACE/vcpkg"
export PATH="$VCPKG_ROOT:$PATH"

if [[ ! -z $(ls -A "${WORKSPACE}/env/cmake") ]]; then
    # point to workspace CMake
    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
        export PATH="$WORKSPACE/env/cmake/bin:$PATH"
    elif [[ "$OSTYPE" == "darwin"* ]]; then
        export PATH="$WORKSPACE/env/cmake/CMake.app/Contents/bin:$PATH"
    fi
else
    echo "Warning. No cmake detected in current workspace. No environment variable will be modified"
fi

if [[ ! -z $(ls -A "${WORKSPACE}/env/openssl") ]]; then
    # point to workspace openssl
    export PATH="$WORKSPACE/env/openssl/bin:$PATH"
    if [[ ! -z $LD_LIBRARY_PATH ]]; then
        export LD_LIBRARY_PATH="$WORKSPACE/env/openssl/lib:$WORKSPACE/env/openssl/lib64:$LD_LIBRARY_PATH"
    else
        export LD_LIBRARY_PATH="$WORKSPACE/env/openssl/lib:$WORKSPACE/env/openssl/lib64"
    fi
    export LC_ALL="en_US.UTF-8"
    export LDFLAGS="-L $WORKSPACE/env/openssl/lib -Wl,-rpath,$WORKSPACE/env/openssl/lib"
fi


if [[ ! -z $(ls -A "${WORKSPACE}/env/python") ]]; then
    # point to workspace Python3
    export PATH="$WORKSPACE/env/python/bin:$PATH"
    export LD_LIBRARY_PATH="$WORKSPACE/env/python/lib:$LD_LIBRARY_PATH"
else
    echo "Warning. No python detected in current workspace. No environment variable will be modified"
fi

if [[ ! -z $(ls -A "${WORKSPACE}/env/ninja") ]]; then
    # point to workspace ninja
    export PATH="$WORKSPACE/env/ninja/bin:$PATH"
else
    echo "Warning. No ninja detected in current workspace. No environment variable will be modified"
fi

if [[ -z $(ls -A "${WORKSPACE}/.venv/") ]]; then
    echo "WARNING: No python virtual environment has been detected."
    echo "A virtual environment will be created by executing `pythonenv.sh`"
    /bin/bash $WORKSPACE/pythonenv.sh
fi

echo "Activating virtual python environment"
source "${WORKSPACE}/.venv/bin/activate"
pip3 install -r ${WORKSPACE}/requirements.txt