# SPDX-license-identifier: Apache-2.0
##############################################################################
# Copyright (c) 2018 SUSE LINUX GmbH.
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################

# NOTE(hwoarang): Most parts of this this file were taken from the
# bifrost repository (scripts/install-deps.sh). This script contains all
# the necessary distro specific code to install ansible and it's dependencies.

function install_ansible() {
    set -eu

    declare -A PKG_MAP

    # workaround: for latest bindep to work, it needs to use en_US local
    export LANG=c

    CHECK_CMD_PKGS=(
        gcc
        libffi
        libopenssl
        lsb-release
        make
        net-tools
        python-devel
        python
        venv
        wget
    )

    source /etc/os-release || source /usr/lib/os-release
    case ${ID,,} in
      *suse)
        OS_FAMILY="Suse"
        INSTALLER_CMD="sudo -H -E zypper -q install -y --no-recommends"
        CHECK_CMD="zypper search --match-exact --installed"
        PKG_MAP=(
            [gcc]=gcc
            [libffi]=libffi-devel
            [libopenssl]=libopenssl-devel
            [lsb-release]=lsb-release
            [make]=make
            [net-tools]=net-tools
            [python]=python
            [python-devel]=python-devel
            [venv]=python-virtualenv
            [wget]=wget
        )
        EXTRA_PKG_DEPS=( python-xml )
        sudo zypper -n ref
        # NOTE (cinerama): we can't install python without removing this package
        # if it exists
        if $(${CHECK_CMD} patterns-openSUSE-minimal_base-conflicts &> /dev/null); then
            sudo -H zypper remove -y patterns-openSUSE-minimal_base-conflicts
        fi
        ;;

        ubuntu|debian)
        OS_FAMILY="Debian"
        export DEBIAN_FRONTEND=noninteractive
        INSTALLER_CMD="sudo -H -E apt-get -y -q=3 install"
        CHECK_CMD="dpkg -l"
        PKG_MAP=(
            [gcc]=gcc
            [libffi]=libffi-dev
            [libopenssl]=libssl-dev
            [lsb-release]=lsb-release
            [make]=make
            [net-tools]=net-tools
            [python]=python-minimal
            [python-devel]=libpython-dev
            [venv]=python-virtualenv
            [wget]=wget
        )
        EXTRA_PKG_DEPS=()
        sudo apt-get update
        ;;

        rhel|fedora|centos)
        OS_FAMILY="RedHat"
        PKG_MANAGER=$(which dnf || which yum)
        INSTALLER_CMD="sudo -H -E ${PKG_MANAGER} -q -y install"
        CHECK_CMD="rpm -q"
        PKG_MAP=(
            [gcc]=gcc
            [libffi]=libffi-devel
            [libopenssl]=openssl-devel
            [lsb-release]=redhat-lsb
            [make]=make
            [net-tools]=net-tools
            [python]=python
            [python-devel]=python-devel
            [venv]=python-virtualenv
            [wget]=wget
        )
        sudo $PKG_MANAGER updateinfo
        EXTRA_PKG_DEPS=( deltarpm )
        ;;

        *) echo "ERROR: Supported package manager not found.  Supported: apt, dnf, yum, zypper"; exit 1;;
    esac

    if ! $(python --version &>/dev/null); then
        ${INSTALLER_CMD} ${PKG_MAP[python]}
    fi
    if ! $(gcc -v &>/dev/null); then
        ${INSTALLER_CMD} ${PKG_MAP[gcc]}
    fi
    if ! $(wget --version &>/dev/null); then
        ${INSTALLER_CMD} ${PKG_MAP[wget]}
    fi

    if ! $(python -m virtualenv --version &>/dev/null); then
        ${INSTALLER_CMD} ${PKG_MAP[venv]}
    fi

    for pkg in ${CHECK_CMD_PKGS[@]}; do
        if ! $(${CHECK_CMD} ${PKG_MAP[$pkg]} &>/dev/null); then
            ${INSTALLER_CMD} ${PKG_MAP[$pkg]}
        fi
    done

    if [ -n "${EXTRA_PKG_DEPS-}" ]; then
        for pkg in ${EXTRA_PKG_DEPS}; do
            if ! $(${CHECK_CMD} ${pkg} &>/dev/null); then
              ${INSTALLER_CMD} ${pkg}
            fi
        done
    fi

    # If we're using a venv, we need to work around sudo not
    # keeping the path even with -E.
    PYTHON=$(which python)

    # To install python packages, we need pip.
    #
    # We can't use the apt packaged version of pip since
    # older versions of pip are incompatible with
    # requests, one of our indirect dependencies (bug 1459947).
    #
    # Note(cinerama): We use pip to install an updated pip plus our
    # other python requirements. pip breakages can seriously impact us,
    # so we've chosen to install/upgrade pip here rather than in
    # requirements (which are synced automatically from the global ones)
    # so we can quickly and easily adjust version parameters.
    # See bug 1536627.
    #
    # Note(cinerama): If pip is linked to pip3, the rest of the install
    # won't work. Remove the alternatives. This is due to ansible's
    # python 2.x requirement.
    if [[ $(readlink -f /etc/alternatives/pip) =~ "pip3" ]]; then
        sudo -H update-alternatives --remove pip $(readlink -f /etc/alternatives/pip)
    fi

    if ! which pip; then
        wget -O /tmp/get-pip.py https://bootstrap.pypa.io/get-pip.py
        sudo -H -E ${PYTHON} /tmp/get-pip.py
    fi

    PIP=$(which pip)
    echo "Using pip: $(${PIP} --version)"
    sudo -H -E ${PIP} -q install --upgrade virtualenv
    sudo -H -E ${PIP} -q install --upgrade pip
    # upgrade setuptools, as latest version is needed to install some projects
    sudo -H -E ${PIP} -q install --upgrade setuptools
    ${PIP} install -q --user --upgrade ansible==$XCI_ANSIBLE_PIP_VERSION
}

# vim: set ts=4 sw=4 expandtab: