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#!/sbin/openrc-run
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

if [ "${SVCNAME}" = "steamcmd" ]; then
	instance="main"
else
	instance="${SVCNAME#steamcmd.}"
fi

dtach_tmpfile="$(mktemp -u)"
name="SteamCMD (Mod: ${instance})"
pidfile="/run/steamcmd.${instance}.pid"
start_stop_daemon_args="--chdir ${STEAMCMD_PATH}"

description_attach="Attaches to the session (non-interactive console) of the SteamCMD game server"
extra_started_commands="attach"

command="/usr/bin/dtach"
command_args="-N ${dtach_tmpfile} ${STEAMCMD_PATH}/${STEAMCMD_BINARY} ${STEAMCMD_OPTS}"
command_background="true"
command_group="steamcmd"
command_user="steamcmd"

depend() {
	use net
}

start_pre() {
	if [ -z "${STEAMCMD_BINARY}" ] || [ -z "${STEAMCMD_PATH}" ]; then
		eerror "One or more STEAMCMD_* variables in /etc/conf.d/${SVCNAME} are not set!"
		return 1
	fi
	return 0
}

attach() {
	pidnumber="$(cat ${pidfile})"
	dtach_tmpfile="$(cat /proc/${pidnumber}/cmdline | tr '\0' ' ' | awk '{print $3}')"

	if [ -S "${dtach_tmpfile}" ]; then
		eval "${command}" -a "${dtach_tmpfile}" "${DTACH_OPTS}"
	else
		eerror "The determined socket file for dtach could not be found!"
		eerror "Did the process crash?"
	fi
}