#!/bin/bash

# Fail on any error.
set -e

# Include library.
script_dir="$(dirname -- "$(realpath -- "${0}")")"
source "${script_dir}/lib.sh"

# Directory that holds the cached packages.
cache_dir="${1}"

# Root directory to untar the cached packages to.
# Typically filesystem root '/' but can be changed for testing.
cache_restore_root="${2}"

# Indicates that the cache was found.
cache_hit="${3}"

# List of the packages to use.
packages="${@:4}"

script_dir="$(dirname -- "$(realpath -- "${0}")")"

if [ "$cache_hit" == true ]; then
  ${script_dir}/restore_pkgs.sh ~/cache-apt-pkgs "${cache_restore_root}"
else
  ${script_dir}/install_and_cache_pkgs.sh ~/cache-apt-pkgs ${packages}
fi

log_empty_line