install_deb

#!/bin/bash
set -euo pipefail -o errtrace

declare -r UNDUPES_VERSION=${UNDUPES_VERSION:-1.0.0}
declare -r TMP_DIR=$(mktemp -d /tmp/deb_install-XXXXX)

function cleanup() {
	declare -i ret_code=$?
	if [[ $ret_code -ne 0 ]]; then
		echo "Installation failed."
	fi
	rm -rf ${TMP_DIR}
}

trap 'cleanup' EXIT

function check_os_type() {
	if [[ $OSTYPE != "linux-gnu" ]]; then
		echo "Prebuilt-binaries not available for the OS.  Try building from source."
	fi
}

function check_root() {
	if [[ $EUID -ne 0 ]]; then
		echo "Run with superuser privilages, please."
		exit 1
	fi
}

function get_details() {
	ARCH=$(dpkg --print-architecture 2>/dev/null)
	DISTRO_NAME=$(lsb_release -is 2>/dev/null)
	DISTRO_CODENAME=$(lsb_release -cs 2>/dev/null)
	FULL_NAME=undupes_${UNDUPES_VERSION}_${ARCH}_${DISTRO_NAME}_${DISTRO_CODENAME}.deb
}

check_os_type
check_root
get_details

wget -q "https://github.com/m-chaturvedi/undupes/releases/download/${UNDUPES_VERSION}/${FULL_NAME}" -O ${TMP_DIR}/${FULL_NAME}

ln -fs /opt/undupes-${UNDUPES_VERSION}/bin/undupes /usr/local/bin/undupes
dpkg -i ${TMP_DIR}/${FULL_NAME}