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# "installer-pc" command
#
# Copyright (C) 2014, 2015  Patrick "P. J." McDermott
#
# This file is part of the ProteanOS Development Kit.
#
# The ProteanOS Development Kit is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# The ProteanOS Development Kit is distributed in the hope that it
# will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the ProteanOS Development Kit.  If not, see
# <http://www.gnu.org/licenses/>.

cmd_installer_pc_optstring='a:p:m:'

cmd_installer_pc_main()
{
	local suite=
	local dev=
	local profile=
	local root=
	local b4=
	local b3=
	local b2=
	local b1=

	if ! get_options "${@}"; then
		print_cmd_usage 'installer-pc' >&2
		return 1
	fi
	shift $(($OPTIND - 1))

	if [ "x${cmd_installer_pc_opt_a-}" = 'x' ]; then
		print_cmd_usage 'installer-pc' >&2
		return 1
	fi
	if [ "x${cmd_installer_pc_opt_p-}" = 'x' ]; then
		print_cmd_usage 'installer-pc' >&2
		return 1
	fi
	if [ ${#} -ne 2 ]; then
		print_cmd_usage 'installer-pc' >&2
		return 1
	fi

	suite="${1}"
	dev="${2}"
	if ! check_block "${dev}"; then
		return 2
	fi

	if [ "x${suite%%:*}" != "x${suite}" ]; then
		profile="${suite%%:*}"
		suite="${suite#*:}"
	else
		profile='proteanos'
	fi
	if ! profile_set "${profile}"; then
		return 2
	fi
	suite="$(profile_normalize_suite "${suite}")"

	if ! cmd_installer_pc_make_partition_and_fs "${dev}"; then
		return 2
	fi
	if ! root="$(block_mount "${dev}1")"; then
		return 2
	fi

	if ! install_system "${cmd_installer_pc_opt_m-}" "${suite}" \
			"${cmd_installer_pc_opt_a-}" \
			"${cmd_installer_pc_opt_p-}" \
			"${root}" false; then
		block_umount "${root}"
		return 2
	fi

	block_umount "${root}"

	return 0
}

cmd_installer_pc_make_partition_and_fs()
{
	local dev="${1}"
	local log=

	info "$(get_msg 'cmd_installer_pc_dd')"
	if ! log="$(dd if=/dev/zero of="${dev}" bs=512 count=1 2>&1)"; then
		error "$(get_msg 'cmd_installer_pc_dd_fail')"
		cmd_installer_pc_log_print 'dd' "${log}"
		return 1
	fi

	info "$(get_msg 'cmd_installer_pc_fdisk')"
	if ${HAVE_SFDISK}; then
		if ! log="$(printf ',,83,*\n' | ${SFDISK} "${dev}" 2>&1)"; then
			error "$(get_msg 'cmd_installer_pc_fdisk_fail')"
			cmd_installer_pc_log_print 'sfdisk' "${log}"
			return 1
		fi
	elif ${HAVE_FDISK}; then
		if ! log="$(printf 'n\np\n1\n\n\nt\n83\na\n1\nw\n' |
				${FDISK} "${dev}" 2>&1)"; then
			error "$(get_msg 'cmd_installer_pc_fdisk_fail')"
			cmd_installer_pc_log_print 'fdisk' "${log}"
			return 1
		fi
	fi

	info "$(get_msg 'cmd_installer_pc_mkfs')"
	if ! log="$(${MKE2FS} -t ext4 "${dev}1" 2>&1)"; then
		error "$(get_msg 'cmd_installer_pc_mkfs_fail')"
		cmd_installer_pc_log_print 'mke2fs' "${log}"
		return 1
	fi

	return 0
}

cmd_installer_pc_log_print()
{
	local prefix="${1}"
	local log="${2}"
	local line=

	IFS="${LF}"
	for line in ${log}; do
		error '%s: %s' "${prefix}" "${line}"
	done
	unset IFS
}

cmd_installer_pc_register()
{
	register_cmd 'installer-pc'
}
__init cmd_installer_pc_register