uninstall

#!/bin/sh
# SPDX-License-Identifier: GPL-3.0-only
#
# This file is part of the distrobox project: https://github.com/89luca89/distrobox
#
# Copyright (C) 2021 distrobox contributors
#
# distrobox is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 3
# as published by the Free Software Foundation.
#
# distrobox 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 distrobox; if not, see <http://www.gnu.org/licenses/>.

# POSIX

dest_path="/usr/local/bin"
verbose=0

# Print usage to stdout.
# Arguments:
#   None
# Outputs:
#   print usage with examples.
show_help() {
	cat <<EOF
uninstall -p /usr/local/bin

Options:
	--path/-p:		path where the files are located (default /usr/local/bin)
	--help/-h:		show this message
	-v:			show more verbosity
EOF
}

# Parse arguments
while :; do
	case $1 in
	-h | --help)
		# Call a "show_help" function to display a synopsis, then exit.
		show_help
		exit
		;;
	-v | --verbose)
		shift
		verbose=1
		;;
	-p | --path)
		if [ -n "$2" ]; then
			dest_path="$2"
			shift
			shift
		fi
		;;
	*) # Default case: If no more options then break out of the loop.
		break ;;
	esac
done

set -o errexit
set -o nounset
# set verbosity
if [ "${verbose}" -ne 0 ]; then
	set -o xtrace
fi

# Ensure the foundamental variables are set and not empty, we will not proceed if
# they are not all set.
[ ! -d "${dest_path}" ] && printf >&2 "Path %s does not exist.\n" "${dest_path} " && exit 1
[ ! -w "${dest_path}" ] && printf >&2 "Cannot write into %s, permission denied.\n" "${dest_path}" && exit 1

# uninstall
if [ -f "${dest_path}/distrobox-enter" ]; then
	for file in distrobox*; do
		rm -i "${dest_path}/${file}"
	done
	echo "Thank you for using Distrobox. Uninstall complete."
else
	printf >&2 "Distrobox is not installed. Aborting.\n" && exit 1
fi