#!/bin/sh

## live-build(7) - System Build Scripts
## Copyright (C) 2006-2014 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="$(Echo 'install local packages into binary')"
HELP=""
USAGE="${PROGRAM} [--force]"

Arguments "${@}"

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

Echo_message "Begin installing local package lists..."

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

# Checking stage file
Check_stagefile .build/binary_package-lists

# Checking lock file
Check_lockfile .lock

# Creating lock file
Create_lockfile .lock

case "${LB_MODE}" in
	progress-linux)
		DISTS="installer/dists"
		POOL="installer/pool"
		;;

	*)
		DISTS="dists"
		POOL="pool"
		;;
esac

if ls config/package-lists/*.list > /dev/null 2>&1 || \
   ls config/package-lists/*.list.binary > /dev/null 2>&1
then
	case "${LB_BUILD_WITH_CHROOT}" in
		true)
			# Restoring cache
			Restore_cache cache/packages.chroot

			# Check depends
			Check_package chroot/usr/bin/apt-ftparchive apt-utils
			Check_package chroot/usr/bin/grep-aptavail dctrl-tools

			# Installing depends
			Install_package
			;;

		false)
			if [ ! -e /usr/bin/apt-ftparchive ]; then
				# apt-utils
				Echo_error "/usr/bin/apt-ftparchive - no such file."
				exit 1
			fi

			if [ ! -e /usr/bin/grep-aptavail ]; then
				# dctrl-tools
				Echo_error "/usr/bin/grep-aptavail - no such file."
				exit 1
			fi
			;;
	esac

	if [ -e "${LIVE_BUILD}/share/bin/Packages" ]
	then
		cp "${LIVE_BUILD}/share/bin/Packages" chroot/bin
	else
		cp /usr/share/live/build/bin/Packages chroot/bin
	fi

	mkdir -p chroot/binary.deb/archives/partial
	mv chroot/var/lib/dpkg/status chroot/var/lib/dpkg/status.tmp
	touch chroot/var/lib/dpkg/status

	for LIST in config/package-lists/*.list \
		    config/package-lists/*.list.binary
	do
		if [ -e "${LIST}" ]
		then
			# Generate package list
			Expand_packagelist "${LIST}" "config/package-lists" > chroot/root/"$(basename ${LIST})"

			# Downloading additional packages
			Chroot chroot "xargs --no-run-if-empty --arg-file=/root/$(basename ${LIST}) apt-get ${APT_OPTIONS} -o Dir::Cache=/binary.deb --download-only install"

			# Remove package list
			rm chroot/root/"$(basename ${LIST})"
		fi
	done

	for FILE in chroot/binary.deb/archives/*.deb
	do
		if [ ! -e ${FILE} ]; then
			break # Do nothing if the package lists were empty...
		fi

		SOURCE="$(dpkg -f ${FILE} Source | awk '{ print $1 }')"
		SECTION="$(dpkg -f ${FILE} Section | awk '{ print $1 }')"

		if [ -z "${SOURCE}" ]
		then
			SOURCE="$(basename ${FILE} | awk -F_ '{ print $1 }')"
		fi

		case "${SOURCE}" in
			lib?*)
				LETTER="$(echo ${SOURCE} | sed 's|\(....\).*|\1|')"
				;;

			*)
				LETTER="$(echo ${SOURCE} | sed 's|\(.\).*|\1|')"
				;;
		esac

		if echo "${SECTION}" | grep -qs contrib
		then
			SECTION="contrib"
		elif echo "${SECTION}" | grep -qs non-free
		then
			SECTION="non-free"
		else
			SECTION="main"
		fi

		# Install directory
		mkdir -p binary/${POOL}/${SECTION}/"${LETTER}"/"${SOURCE}"

		# Move files
		mv "${FILE}" binary/${POOL}/${SECTION}/"${LETTER}"/"${SOURCE}"
	done

	cd binary

	for SECTION in ${POOL}/*
	do
		SECTION="$(basename ${SECTION})"

		mkdir -p ${DISTS}/${LB_PARENT_DISTRIBUTION}/${SECTION}/binary-${LB_ARCHITECTURES}
		apt-ftparchive packages ${POOL}/${SECTION} > ${DISTS}/${LB_PARENT_DISTRIBUTION}/${SECTION}/binary-${LB_ARCHITECTURES}/Packages
		gzip -9 -c ${DISTS}/${LB_PARENT_DISTRIBUTION}/${SECTION}/binary-${LB_ARCHITECTURES}/Packages > ${DISTS}/${LB_PARENT_DISTRIBUTION}/${SECTION}/binary-${LB_ARCHITECTURES}/Packages.gz
	done

	cd "${OLDPWD}"

	rm -f chroot/bin/Packages

	rm -rf chroot/binary.deb
	mv chroot/var/lib/dpkg/status.tmp chroot/var/lib/dpkg/status

	case "${LB_BUILD_WITH_CHROOT}" in
		true)
			# Removing depends
			Remove_package

			# Saving cache
			Save_cache cache/packages.chroot
			;;
	esac

	# Creating stage file
	Create_stagefile .build/binary_package-lists
fi