# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: package/.../syslinux/stone_mod_extlinux.sh
# Copyright (C) 2006 - 2008 The OpenSDE Project
# Copyright (C) 2004 - 2006 The T2 SDE Project
# Copyright (C) 1998 - 2003 Clifford Wolf
#
# More information can be found in the files COPYING and README.
#
# This program 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; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---
#
# [MAIN] 70 extlinux extlinux (syslinux) Boot Loader Setup
# [SETUP] 90 extlinux

create_kernel_list() {
	local label= first=1 initrd=
        first=1
        for x in `(cd /boot/ ; ls vmlinuz_* ) | sort -r` ; do
                if [ $first = 1 ] ; then
                        label=linux ; first=0
                else
                        label=linux-${x/vmlinuz_/}
                        label=${label/-dist/}
                fi
		initrd=initrd-${x/vmlinuz_/}.img

                cat <<-EOT

		LABEL $label
		    KERNEL  /$x
		    APPEND  initrd=/$initrd root=$rootdev ro
		EOT
        done
}

create_extlinux_conf() {
	i=0 ; rootdev="`grep ' / ' /proc/mounts | tail -n 1 | \
					awk '/\/dev\// { print $1; }'`"
	rootdev="$( cd ${rootdev%/*} ; pwd -P )/${rootdev##*/}"
	# TODO: readlink? //mnemoc
	while [ -L $rootdev ] ; do
		directory="$( cd `dirname $rootdev` ; pwd -P )"
		rootdev="$( ls -l $rootdev | sed 's,.* -> ,,' )"
		[ "${rootdev##/*}" ] && rootdev="$directory/$rootdev"
		i=$(( $i + 1 )) ; [ $i -gt 20 ] && rootdev="Not found!"
	done
	bootdev="`echo $rootdev | sed -e 's,[0-9]*$,,'`"

	mkdir -p /boot/extlinux

	cat <<-EOT > /boot/extlinux/extlinux.conf
	DEFAULT linux
	PROMPT 1
	TIMEOUT 300
	EOT

	create_kernel_list >> /boot/extlinux/extlinux.conf

	gui_message "This is the new /boot/extlinux/extlinux.conf file:

$( cat /boot/extlinux/extlinux.conf )"

}

main() {

	while

        gui_menu extlinux 'Extlinux (syslinux) Boot Loader Setup' \
                '(Re-)Create extlinux.conf with installed kernels' 'create_extlinux_conf' \
                '(Re-)Install extlinux in /boot/extlinux' \
			'gui_cmd "Installing extlinux in /boot/extlinux" "mkdir -p /boot/extlinux; extlinux -i /boot/extlinux"' \
                "Edit /boot/extlinux/extlinux.conf (recommended before installing extlinux)" \
                        "gui_edit 'Extlinux Config File' /boot/extlinux/extlinux.conf"
    do : ; done
}