#!/bin/sh -e

# Debian & derivatives don't provide binary packages of googletest

# => have to build them ourselves

#

# This script builds a shared library of googletest (not googlemock!) inside

# gtest_build and copies it to /usr/lib/

debian_build_gtest() {

    [ -d gtest_build ] || mkdir gtest_build

    cd gtest_build

    cmake -DBUILD_SHARED_LIBS=1 /usr/src/googletest/googletest

    make

    cp libgtest* /usr/lib/

    cd ..

}

# workaround for really bare-bones Archlinux containers:

if [ -x "$(command -v pacman)" ]; then

    pacman --noconfirm -Sy

    pacman --noconfirm -S grep gawk sed

fi

distro_id=$(grep '^ID=' /etc/os-release|awk -F = '{print $2}'|sed 's/\"//g')

case "$distro_id" in

    'fedora')

        dnf -y --refresh install gcc-c++ clang cmake make ccache expat-devel zlib-devel libssh-devel libcurl-devel gtest-devel which dos2unix

        ;;

    'debian')

        apt-get update

        apt-get install -y cmake g++ clang make ccache python3 libexpat1-dev zlib1g-dev libssh-dev libcurl4-openssl-dev libgtest-dev libxml2-utils

        debian_build_gtest

        ;;

    'arch')

        pacman --noconfirm -Syu

        pacman --noconfirm -S gcc clang cmake make ccache expat zlib libssh curl gtest python dos2unix which diffutils

        ;;

    'ubuntu')

        apt-get update

        apt-get install -y cmake g++ clang make ccache python3 libexpat1-dev zlib1g-dev libssh-dev libcurl4-openssl-dev libgtest-dev google-mock libxml2-utils

        debian_build_gtest

        ;;

    'centos'|'rhel')

        yum -y install epel-release

        # enable copr for gtest

        curl https://copr.fedorainfracloud.org/coprs/defolos/devel/repo/epel-7/defolos-devel-epel-7.repo > /etc/yum.repos.d/_copr_defolos-devel.repo

        yum clean all

        yum -y install gcc-c++ clang cmake3 make ccache expat-devel zlib-devel libssh-devel libcurl-devel gtest-devel which python36 dos2unix

        # symlink up to date versions of python & cmake to 'default' names

        if [ ! -e /usr/bin/python3 ]; then

            ln -s /usr/bin/python36 /usr/bin/python3

        elif [ -L /usr/bin/python3 ]; then

            rm /usr/bin/python3

            ln -s /usr/bin/python36 /usr/bin/python3

        fi

        mv /bin/cmake /bin/.cmake.old

        ln -s /bin/cmake3 /bin/cmake

        ;;

    'opensuse'|'opensuse-tumbleweed')

        zypper --non-interactive refresh

        zypper --non-interactive install gcc-c++ clang cmake make ccache libexpat-devel zlib-devel libssh-devel libcurl-devel gtest which dos2unix libxml2-tools

        ;;

    *)

        echo "Sorry, no predefined dependencies for your distribution $distro_id exist yet"

        exit 1

        ;;

esac