#!/bin/bash

install_package() {
	echo "# Installing packages $* ... "
	apt-get $INSTALLOPTIONS install "$@" && return 0
	echo
	echo "# Could not install $*"
	echo "# Trying an apt-get update..."
	if ! apt-get update; then
		perror "apt-get update failed. Abort."
	fi
	echo "# Retrying installing package $* ... "
	apt-get $INSTALLOPTIONS install "$@" && return 0
	perror "Could not install $* - Giving up."
}

install_packages() {
	local NEEDED_PACKAGES="$2"
	local INSTALLOPTIONS=

	echo "#"
	echo "# Installing packages. This may take a while."
	echo "#"

	case "$1" in
	NOREC)   INSTALLOPTIONS="-qq -y --no-install-recommends"
		;;
	RECOM)   INSTALLOPTIONS="-qq -y"
		;;
	*)       perror "Invalid install_packages mode: $1"
		;;
	esac
	install_package $NEEDED_PACKAGES # No quotes
}

# install_files <module_name>
install_files() {
	local dir="${BASEDIR}/static_files/${1}"
	[ -d "$dir" ] || perror "static files for module $1 not found"
	tar -cpP --owner=root --group=root --transform "s,^\(./\)*${dir}/*,," "$dir" | tar -xp -C /
	local ps=( "${PIPESTATUS[@]}" )
	[ "${ps[0]}" != 0 ] && perror "tarcopy: Read failed"
	[ "${ps[1]}" != 0 ] && perror "tarcopy: Write failed"
	return 0
}