install-deps.sh

#!/bin/bash

# Copyright 2018 SMF Authors
#

set -e
if [ -n "${CI}" ]; then
    set -x
fi
# shellcheck disable=SC1091
source /etc/os-release

function apt_gcc {
    local gccver=$1
    local cc="gcc-${gccver}"
    local cxx="g++-${gccver}"
    apt-get install -y "${cc}" "${cxx}"
    if [ -n "${CI}" ]; then
        update-alternatives \
            --install /usr/bin/gcc gcc "/usr/bin/${cc}" 800 \
            --slave /usr/bin/g++ g++ "/usr/bin/${cxx}"
    fi

}

function debs() {
    apt-get update -y

    local extra=""
    if [ -n "${USE_CLANG}" ]; then
        extra=clang
    else
        # ensure gcc is installed so we can test its version
        apt-get install -y build-essential
        if ! command -v add-apt-repository; then
            apt-get -y install software-properties-common
        fi
        apt-get update -y
        if [ "$(apt-cache search '^gcc-9$' | awk '{print $1}')" == "gcc-9" ]; then
            apt_gcc 9
        else
            gcc_ver=$(gcc -dumpfullversion -dumpversion)
            if dpkg --compare-versions "${gcc_ver}" lt 8.0; then
                # as of may 29, 2019, ubuntu:disco did not have this ppa enabled
                add-apt-repository -y ppa:ubuntu-toolchain-r/test
                apt_gcc 8
            fi
        fi
    fi
    if [ "${UBUNTU_CODENAME}" == "xenial" ] && [ -n "${CI}" ]; then
        cmake_version="3.14.0-rc2"
        cmake_full_name="cmake-${cmake_version}-Linux-x86_64.sh"
        apt-get install -y wget
        wget https://github.com/Kitware/CMake/releases/download/v${cmake_version}/${cmake_full_name} -O /tmp/${cmake_full_name}
        chmod +x /tmp/${cmake_full_name}
        /tmp/${cmake_full_name} --skip-license --prefix=/usr
    else
        apt-get install -y cmake
    fi
    apt-get install -y \
        build-essential \
        libtool \
        m4 \
        ninja-build \
        automake \
        pkg-config \
        xfslibs-dev \
        systemtap-sdt-dev \
        ragel ${extra}
}

function rpms() {
    yumdnf="yum"
    if command -v dnf > /dev/null; then
        yumdnf="dnf"
    fi

    case ${ID} in
      centos|rhel)
        MAJOR_VERSION="$(echo "$VERSION_ID" | cut -d. -f1)"
        $SUDO yum-config-manager --add-repo https://dl.fedoraproject.org/pub/epel/"$MAJOR_VERSION"/x86_64/
        $SUDO yum install --nogpgcheck -y epel-release
        $SUDO rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-"$MAJOR_VERSION"
        $SUDO rm -f /etc/yum.repos.d/dl.fedoraproject.org*
        if test "$ID" = centos -a "$MAJOR_VERSION" = 7 ; then
          yum install -y centos-release-scl
          yum install -y devtoolset-8
          dts_ver=8
        fi
        ;;
    esac

    if [ -n "${USE_CLANG}" ]; then
        extra=clang
    fi

    cmake="cmake"
    case ${ID} in
      centos|rhel)
        MAJOR_VERSION="$(echo "$VERSION_ID" | cut -d. -f1)"
        if test "$MAJOR_VERSION" = 7 ; then
          cmake="cmake3"
        fi
    esac

    ${yumdnf} install -y \
        ${cmake} \
        gcc-c++ \
        ninja-build \
        m4 \
        libtool \
        make \
        ragel \
        xfsprogs-devel \
        systemtap-sdt-devel \
        libasan \
        libubsan \
        libatomic \
        doxygen ${extra}

    if [ -n "$dts_ver" ]; then
      if test -t 1; then
        # interactive shell
        cat <<EOF
Your GCC is too old. Please run following command to add DTS to your environment:

scl enable devtoolset-8 bash

Or add following line to the end of ~/.bashrc to add it permanently:

source scl_source enable devtoolset-8

see https://www.softwarecollections.org/en/scls/rhscl/devtoolset-8/ for more details.
EOF
      else
        # non-interactive shell
        # shellcheck disable=SC1090
        source /opt/rh/devtoolset-"$dts_ver"/enable
      fi
    fi
}

case $ID in
    debian|ubuntu|linuxmint)
        debs
        ;;

    centos|fedora)
        rpms
        ;;

    *)
        echo "$ID not supported. Install dependencies manually."
        exit 1
        ;;
esac