Bug#867677: initramfs-tools: [patch] feature request: provide hook to set host name in InitRAMFS config dynamically

["M. Buecher" <maddes+debian@maddes.net>]

Updated script, more clean and also processes conf/initramfs.conf

#!/bin/sh

#
# This InitRAMFS hook provides:
# Simple script to set IP parameter in InitRAMFS config with current
# hostname, instead of manually maintaining InitRAMFS config.

PREREQ=""

prereqs()
{
	echo "${PREREQ}"
}

case "${1}" in
 prereqs)
	prereqs
	exit 0
	;;
esac

. /usr/share/initramfs-tools/hook-functions

#
# Begin real processing
#
[ ! -f "${DESTDIR}/conf/initramfs.conf" ] || sed -i -e "s#\${hostname}#$(hostname)#" "${DESTDIR}/conf/initramfs.conf"
[ ! -f "${DESTDIR}/conf/conf.d/network" ] || sed -i -e "s#\${hostname}#$(hostname)#" "${DESTDIR}/conf/conf.d/network"