live-build/scripts/build/chroot_hostname

#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2006-2013 Daniel Baumann <mail@daniel-baumann.ch>
##
## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
## This is free software, and you are welcome to redistribute it
## under certain conditions; see COPYING for details.


set -e

# Including common functions
[ -e "${LIVE_BUILD}/scripts/build.sh" ] && . "${LIVE_BUILD}/scripts/build.sh" || . /usr/lib/live/build.sh

# Setting static variables
DESCRIPTION="$(Echo 'manage /bin/hostname')"
HELP=""
USAGE="${PROGRAM} {install|remove} [--force]"

Arguments "${@}"

# Reading configuration files
Read_conffiles config/all config/common config/bootstrap config/chroot config/binary config/source
Set_defaults

# Requiring stage file
Require_stagefile .build/config .build/bootstrap

case "${1}" in
	install)
		# Checking stage file
		Check_stagefile .build/chroot_hostname

		# Checking lock file
		Check_lockfile .lock

		# Creating lock file
		Create_lockfile .lock

		# Create hostname file
		Echo_message "Configuring file /etc/hostname"

		echo "localhost.localdomain" > chroot/etc/hostname

		# Create custom hostname
		Echo_message "Configuring file /bin/hostname"

		Chroot chroot dpkg-divert --rename --quiet --add /bin/hostname

cat > chroot/bin/hostname << EOF
#!/bin/sh

echo "localhost.localdomain"
EOF

		chmod 755 chroot/bin/hostname

		# Creating stage file
		Create_stagefile .build/chroot_hostname
		;;

	remove)
		Echo_message "Deconfiguring file /etc/hostname"

		# Checking lock file
		Check_lockfile .lock

		# Creating lock file
		Create_lockfile .lock

		# Copying hostname from includes, if existing
		if [ -e config/includes.chroot/etc/hostname ]
		then
			cp -a config/includes.chroot/etc/hostname chroot/etc/hostname
		fi

		Echo_message "Deconfiguring file /bin/hostname"

		# Remove custom hostname
		rm -f chroot/bin/hostname
		Chroot chroot dpkg-divert --rename --quiet --remove /bin/hostname

		# Removing stage file
		rm -f .build/chroot_hostname
		;;

	*)
		Usage
		;;
esac