archlinux/installer.sh

#!/usr/bin/env bash
download_url=git.myvelabs.com/lab/archlinux/raw/branch/master

# Detect network connectivity
if ! nc -z -w 1 archlinux.org 443 >/dev/null 2>&1 || ! nc -z -w 1 google.com 443 >/dev/null 2>&1
then
    echo -e '\n\t\e[31mNo internet connection detected\e[0m\n'
    exit 1
fi

# Function to list available script options
function listScripts
{
    echo -e '\n\e[1;36mSelect a script to run\e[0m
    1) Arch Linux
    2) Arch Linux VM
    3) Arch Linux Passthrough
    4) Arch Linux Server
    5) Recovery'

    while true
    do
        read -n 1 -p '> ' script_selection
        case ${script_selection} in
            1) script=arch
                break;;
            2) script=virtual-machine
                break;;
            3) script=passthrough
                break;;
            4) script=homelab
                break;;
            5) script=recover
                break;;
            *) echo -e '\n\n\e[1;31mInvalid selection, type an option from 1 to 5\e[0m'
                ;;
        esac
    done

    echo
}

# Detect script choice
case ${1} in
    arch)
        script=arch ;;
    vm|virtual-machine)
        script=virtual-machine ;;
    passthrough)
        script=passthrough ;;
    server|homelab)
        script=homelab ;;
    recover)
        script=recover ;;
    *)
        listScripts ;;
esac

# Run script if successful, abort installer otherwise
if curl --fail -s -L https://${download_url}/${script}.sh -o ./arch
then
    /usr/bin/bash ./arch "${@:2}"
    exit 0
else
    echo -e '\e[31mInvalid script or server may be offline, make another selection or try again later\e[0m\n'
    exit 1
fi