openrc/init.d/hostname.in

#!@SBINDIR@/openrc-run
# Copyright (c) 2007-2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/HEAD/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/HEAD/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.

description="Sets the hostname of the machine."

depend()
{
	after clock
	keyword -docker -lxc -prefix -systemd-nspawn
}

start()
{
	local h source x
	if [ -s /etc/hostname ] && [ -r /etc/hostname ]; then
		read h x </etc/hostname
		source="from /etc/hostname"
	else
		# HOSTNAME variable used to be defined in caps in conf.d/hostname.
		# It is also a magic variable in bash.
		h=${hostname:-${HOSTNAME}} # checkbashisms: false positive (HOSTNAME var)
	fi
	if [ -z "$h" ]; then
		einfo "Using default system hostname"
		return 0
	fi
	ebegin "Setting hostname to $h $source"
	hostname "$h"
	eend $? "Failed to set the hostname"
}