abstraction around package mananger

packagemanager.sh

function package_manager() {
    local type="$1"
    local command="$2"
    local args="$3"
    local POSSIBLE_INSTALL_COMMAND=(install add require)

    case $type in
        'npm' )
            if [[ " ${POSSIBLE_INSTALL_COMMAND[*]} " == *" $command "* ]]; then
                npm install "$args"
            fi
        'yarn' )
            echo "$type";;
        'composer' )
            echo "$type";;
    esac
}