#!/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

# Redirecting to auto script if required
if [ "${1}" = "noauto" ]; then
	shift
else
	Maybe_auto_redirect clean "${@}"
fi

# Setting static variables
DESCRIPTION="Clean up system build directories"
USAGE="${PROGRAM} [--all] [--cache] [--chroot] [--binary] [--purge] [--remove] [--stage] [--source] [COMMON_OPTIONS]"

# Reading, preparing and validating config
Read_conffiles $(Common_conffiles)
Prepare_config
#Validate_config

# Avoiding cases were users accidentally nuke their config/binary
if [ ! -d config ] && [ "$(basename ${PWD})" = "config" ]
then
	Echo_error "%s is not a good live-build working directory to clean." "${PWD}"
	exit 1
fi

Remove_lockfile

ACTION_SELECTED="false"

for ARGUMENT in "${@}"; do
	IS_ACTION="true"
	case "${ARGUMENT}" in
		--all)
			RM_ALL="true"
			;;

		--cache)
			RM_CACHE="true"
			;;

		--chroot)
			RM_CHROOT="true"
			;;

		--binary)
			RM_BINARY="true"
			;;

		--remove)
			RM_REMOVE="true"
			;;

		--purge)
			RM_PURGE="true"
			;;

		--stage)
			RM_STAGE="true"
			;;

		--source)
			RM_SOURCE="true"
			;;

		*)
			IS_ACTION="false"
			;;
	esac
	if [ "${IS_ACTION}" = "true" ]; then
		ACTION_SELECTED="true"
		continue
	fi

	case "${ARGUMENT}" in
		--breakpoints|--color|--debug|--force|-h|--help|--no-color|--quiet|-u|--usage|--verbose|-v|--version)
			Handle_common_option "${ARGUMENT}"
			shift
			;;

		*)
			Echo_error "invalid arguments"
			Usage --fail
			;;
	esac
done
if [ "${ACTION_SELECTED}" = "false" ]; then
	RM_ALL="true"
fi

STAGEFILES_DIR="$(Stagefiles_dir)"

if [ "${RM_PURGE}" = "true" ]; then
	Echo_debug "Initialising --purge cleaning"
	RM_ALL="true"
	RM_CACHE="true"
	# Clear config stagefile
	if [ -e auto/config ]; then
		Remove_stagefile config
	fi
fi

if [ "${RM_REMOVE}" = "true" ]; then
	Echo_debug "Initialising --remove cleaning"
	RM_ALL="true"
	rm -rf cache/packages.*
fi

if [ "${RM_ALL}" = "true" ]; then
	Echo_debug "Initialising --all cleaning"
	RM_STAGE="true"
	RM_CHROOT="true"
	RM_BINARY="true"
	RM_SOURCE="true"
	rmdir --ignore-fail-on-non-empty auto > /dev/null 2>&1 || true
	rmdir --ignore-fail-on-non-empty local/bin > /dev/null 2>&1 || true
	rmdir --ignore-fail-on-non-empty local > /dev/null 2>&1 || true
fi

if [ "${RM_STAGE}" = "true" ]; then
	Echo_debug "Cleaning stage files"
	rm -rf "${STAGEFILES_DIR}"/*
fi

if [ "${RM_CACHE}" = "true" ]; then
	Echo_debug "Cleaning cache"
	rm -rf cache
fi

if [ "${RM_CHROOT}" = "true" ]; then
	# This one is not debug because it can potentially take some time
	Echo_message "Cleaning chroot"
	umount -f chroot/run > /dev/null 2>&1 || true
	umount -f chroot/sys > /dev/null 2>&1 || true
	umount -f chroot/proc/sys/fs/binfmt_misc > /dev/null 2>&1 || true
	umount -f chroot/proc > /dev/null 2>&1 || true
	umount -f chroot/lib/init/rw > /dev/null 2>&1 || true
	umount -f chroot/dev/shm > /dev/null 2>&1 || true
	umount -f chroot/dev/pts > /dev/null 2>&1 || true
	umount -f chroot/dev > /dev/null 2>&1 || true
	umount -f chroot/var/lib/dpkg > /dev/null 2>&1 || true
	umount -f chroot/root/config > /dev/null 2>&1 || true

	umount -f chroot/binary.tmp > /dev/null 2>&1 || true
	umount -f chroot/dev.tmp/pts > /dev/null 2>&1 || true

	rm -rf chroot chroot.tmp

	rm -f chroot.packages.live chroot.packages.install
	rm -f chroot.files

	rm -f "$(Installed_tmp_packages_file)"

	rm -f "${STAGEFILES_DIR}"/chroot*
fi

if [ "${RM_BINARY}" = "true" ]; then
	Echo_debug "Cleaning binary"
	umount -f binary.tmp > /dev/null 2>&1 || true
	rm -rf binary.tmp binary.deb binary.udeb
	rm -f ${LB_IMAGE_NAME}*.iso
	rm -f ${LB_IMAGE_NAME}*.img
	rm -f ${LB_IMAGE_NAME}*.tar.gz
	rm -f ${LB_IMAGE_NAME}*.zsync*
	rm -f ${LB_IMAGE_NAME}.sh
	rm -f ${LB_IMAGE_NAME}*.contents ${LB_IMAGE_NAME}*.packages ${LB_IMAGE_NAME}*.files
	rm -f ${LB_IMAGE_NAME}*.iso-ONIE.bin
	rm -f MD5SUMS SHA1SUMS SHA256SUMS SHA512SUMS
	rm -f md5sum.txt sha1sum.txt sha256sum.txt sha512sum.txt
	rm -f binary.modified_timestamps

	rm -rf binary
	rm -rf tftpboot

	rm -f "${STAGEFILES_DIR}"/binary*
fi

if [ "${RM_SOURCE}" = "true" ]; then
	Echo_debug "Cleaning source"
	rm -f ${LB_IMAGE_NAME}-source*.iso
	rm -f ${LB_IMAGE_NAME}-source*.img
	rm -f ${LB_IMAGE_NAME}-source*.tar
	rm -f ${LB_IMAGE_NAME}-source*.tar.gz
	rm -f ${LB_IMAGE_NAME}-source*.list
	rm -f ${LB_IMAGE_NAME}-source-selection.txt

	rm -rf source

	rm -f "${STAGEFILES_DIR}"/source*
fi
