buildWrapper/functions

#!/usr/bin/env bash
# shellcheck disable=SC1090,SC2034

checkBashVersion () {

    if ! declare -n _assoc; then
        echo "You must use bash >= 4.3 (supports namerefs) to use build-wrapper"
        echo "You can still call most functions directly using arguments instead of arrays."
        _printHelpAndExit 1
    fi
}


getOS () {

    if [[ -e /etc/os-release ]]; then
        source /etc/os-release
    else
        echo "No /etc/os-release found!"
        echo "Your OS is unsupported"
        _printHelpAndExit 1
    fi
}


installPackage () {

    # We will add packages to this array if their command is not available
    local -a _pkg_array

    # parse commands
    for _pkg in "$@"; do
        _pkg=$(packageOverrides "$_pkg")
        # Insert the package name to test if already installed one element from the end
        # and silence output
        if ! "${_pkg_query_cmd[@]}" "$_pkg" > /dev/null 2>&1; then
            _pkg_array+=("$_pkg")
        else
            echo "$_pkg is already installed!"
        fi
    done

    if [[ ${#_pkg_array[@]} -ge 1 ]]; then
        [[ -n $_debug ]] && echo "${_install_cmd[@]}" "${_pkg_array[@]}"
        "${_install_cmd[@]}" "${_pkg_array[@]}"
    fi
}


packageOverrides () {

    if [[ "$ID" == "ubuntu" || "$ID" == "debian" ]]; then
        if [[ "$1" == "rpm-build" ]]; then
            echo "rpm"
        elif [[ "$1" == "createrepo_c" ]]; then
            echo "createrepo"
        else
            echo "$1"
        fi
    else
        echo "$1"
    fi
}


getBaseDir () {
    # Get base directory name of where this script resides
    # https://stackoverflow.com/questions/59895/how-to-get-the-source-directory-of-a-bash-script-from-within-the-script-itself#comment54598418_246128
    _basedir=$(dirname "$(readlink -f "$0")")
}


sourcePlugin () {

    getBaseDir
    _plugin="$_basedir/plugins/$1"
    if [[ -f "$_plugin" ]]; then
        source "$_plugin"
    else
        echo "Plugin $_plugin does not exist!"
    fi
}


sourcePlugins () {

    getBaseDir
    for _file in "$_basedir"/plugins/*/*; do
        [[ -f "$_file" ]] && source "$_file"
    done
}


pluginExists () {

    if [[ $# -lt 1 || ! $(type -t "$1") == "function" ]]; then
        echo "Plugin not found"
        _printHelpAndExit 1
    fi
}


fixPermissions () {

    # Allow container access to the workdir (SELinux)
    chcon -t container_file_t -R "$1"
}


debug () {

    [[ -n $_debug ]] && echo "debug: " "$@"
}


silent () {

    [[ -z $_silent ]] && echo "$@"
}