#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2016-2020 The Debian Live team
## Copyright (C) 2006-2015 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="Execute local preseed in chroot"
USAGE="${PROGRAM} [--force]"

# Processing arguments and configuration files
Init_config_data "${@}"

Echo_message "Begin executing local preseeds..."

# Requiring stage file
Require_stagefiles config bootstrap

# Checking stage file
Check_stagefile

# Acquire lock file
Acquire_lockfile

if ls config/preseed/*.cfg > /dev/null 2>&1 || \
   ls config/preseed/*.cfg.chroot > /dev/null 2>&1 || \
   ls chroot/root/packages.chroot.cfg > /dev/null 2>&1
then
	# Check dependency
	Check_package chroot /usr/bin/debconf-set-selections debconf

	# Install dependency
	Install_packages

	for PRESEED in config/preseed/*.cfg config/preseed/*.cfg.chroot chroot/root/packages.chroot.cfg
	do
		if [ -e "${PRESEED}" ]
		then
			# Copying local preseed
			cp "${PRESEED}" chroot/root/preseed

			Chroot chroot "debconf-set-selections /root/preseed"

			# Removing local preseed file
			rm -f chroot/root/preseed

			# After preseeding debconf, reconfigure packages that have already
			# been installed in the debootstrap phase.
			# Strip comments and empty lines and take first column (pkg name).
			sed -e 's/[[:space:]]*#.*//' -e '/^[[:space:]]*$/d' \
				-e 's/[[:space:]].*//g' "${PRESEED}" | \
				while read PKG
			do
				# Don't know the filename, but we want to query only dpkg
				Check_installed chroot "placeholder" "${PKG}"
				if [ ${INSTALL_STATUS} -eq 0 ]
				then
					Chroot chroot "dpkg-reconfigure ${PKG}"
				fi
			done
		fi
	done

	rm -f chroot/root/packages.chroot.cfg

	# Remove dependency
	Remove_packages
fi

# Creating stage file
Create_stagefile