#!/bin/bash

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program. If not, see <http://www.gnu.org/licenses/>.

#Copyright 2021 rexy712

extr_register_module 'xz'
extr_register_extensions 'xz' '\.xz$'

function do_xz(){
	local flags=()
	if [ "$verbosity" == 0 ];then
		flags+=("--quiet")
	elif [ "$verbosity" == 2 ];then
		flags+=("--verbose")
	fi
	if [ -n "$overwrite" ];then
		flags+=("--force")
	fi
	if [ -n "$outloc" ];then
		fileout="${outloc}/$(basename "${file:0:-3}")"
	else
		fileout="${PWD}/$(basename "${file:0:-3}")"
	fi
	if [ -e "${fileout}" ] && [ -z "$overwrite" ];then
		echo "Could not decompress $file; output file exists" >&2
		return 1
	fi
	if [ ! -r "${file}" ] || [ ! -w "$(dirname "${fileout}")" ];then
		echo "${file} decompress failed; permission denied"
		return 1
	fi
	xz -dk "${flags[@]}" "${passthrough_args[@]}" "$file" --stdout > "${fileout}"
}