distrobox/distrobox-systemd-service at 4396c38144e74acabd58e2dbd116235e1286d0cc · 89luca89/distrobox · GitHub

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#!/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
# Optional env variables:
#	DBX_CONTAINER_MANAGER
#	DBX_VERBOSE

# Ensure we have our env variables correctly set
[ -z "${USER}" ] && USER="$(id -run)"
[ -z "${HOME}" ] && HOME="$(getent passwd "${USER}" | cut -d':' -f6)"
[ -z "${SHELL}" ] && SHELL="$(getent passwd "${USER}" | cut -d':' -f7)"

# Defaults
container_name="${1:-}"
action="${2:-start}"
verbose=0
version="1.8.2.4"

show_help()
{
	cat << EOF
distrobox version: ${version}

Usage:
	distrobox-systemd-service <container_name> [start|stop] [--verbose]

Description:
	Manage background app registration and system tray integration for distrobox containers.
	This enables visibility in GNOME Background Apps and system tray areas.

Options:

	-h, --help              Show this message
	-v, --verbose           Show more verbosity
	-V, --version           Show version

Examples:
	distrobox-systemd-service my-container start
	distrobox-systemd-service my-container stop

EOF
}

# Parse arguments
while [ $# -gt 0 ]; do
	case "${1}" in
		-h | --help)
			show_help
			exit 0
			;;
		-v | --verbose)
			verbose=1
			shift
			;;
		-V | --version)
			printf "distrobox version: %s\n" "${version}"
			exit 0
			;;
		*)
			if [ -z "${container_name}" ]; then
				container_name="${1}"
			elif [ -z "${action}" ]; then
				action="${1}"
			fi
			shift
			;;
	esac
done

if [ -z "${container_name}" ]; then
	printf >&2 "Error: container name required\n"
	show_help
	exit 1
fi

# Register background app with freedesktop portal
register_background_app()
{
	local container="${1}"
	local app_id="distrobox.${container}"
	local xdg_data_home="${XDG_DATA_HOME:-${HOME}/.local/share}"
	local service_dir="${xdg_data_home}/dbus-1/services"

	mkdir -p "${service_dir}"

	# Create dbus service file for background app
	cat > "${service_dir}/${app_id}.service" << EOF
[D-BUS Service]
Name=${app_id}
Exec=distrobox-enter ${container} -- true
EOF

	if [ "${verbose}" -eq 1 ]; then
		printf "Registered background app: %s\n" "${app_id}"
	fi
}

unregister_background_app()
{
	local container="${1}"
	local app_id="distrobox.${container}"
	local xdg_data_home="${XDG_DATA_HOME:-${HOME}/.local/share}"
	local service_dir="${xdg_data_home}/dbus-1/services"
	local service_file="${service_dir}/${app_id}.service"

	if [ -f "${service_file}" ]; then
		rm -f "${service_file}"
		if [ "${verbose}" -eq 1 ]; then
			printf "Unregistered background app: %s\n" "${app_id}"
		fi
	fi
}

# Main execution
case "${action}" in
	start)
		register_background_app "${container_name}"
		;;
	stop)
		unregister_background_app "${container_name}"
		;;
	*)
		printf >&2 "Invalid action: %s\n" "${action}"
		show_help
		exit 1
		;;
esac

exit 0