#!/bin/sh

# initramfs hook for live-boot (Debian Live)

set -e

# initramfs-tools header

PREREQ=""

prereqs()
{
	echo "${PREREQ}"
}

case "${1}" in
	prereqs)
		prereqs
		exit 0
		;;
esac

. /usr/share/initramfs-tools/hook-functions

[ "${QUIET}" ] || echo -n live-boot:

# live-boot hook

# Reading configuration file from filesystem
if [ -e /etc/live/boot.conf ]
then
	. /etc/live/boot.conf
fi

if ls /etc/live/boot.d/*.conf > /dev/null 2>&1
then
	for _FILE in /etc/live/boot.d/*.conf
	do
		. ${_FILE}
	done
fi

# Handling live-boot

if [ ! -e /usr/share/live-boot ]
then
	echo "W: live-boot-initramfs-tools (backend) installed without live-boot,"
	echo "W: this initramfs will *NOT* have live support."
	exit 0
fi

[ "${QUIET}" ] || echo -n " "core

mkdir -p "${DESTDIR}/lib/live"
cp -a /lib/live/boot.sh /lib/live/boot "${DESTDIR}/lib/live"

# Directories
mkdir -p "${DESTDIR}"/lib/live-boot

# Executables
copy_exec /usr/share/live-boot/live-reconfigure /bin
copy_exec /usr/share/live-boot/live-preseed /bin

# klibc dependencies
for FILE in /lib/libacl* /lib/libblkid* /lib/libuuid* /lib/libdevmapper* /lib/libattr*
do
	if [ ! -e "${DESTDIR}"/"${FILE}" ] && ls ${FILE} > /dev/null 2>&1
	then
		cp -a "${FILE}" "${DESTDIR}"/"${FILE}"
	fi
done

# udev dependencies (squeeze and newer)
for FILE in /lib/udev/*_id
do
	if [ ! -e "${DESTDIR}/${FILE}" ]
	then
		mkdir -p "${DESTDIR}/lib/udev"
		copy_exec "${FILE}" /lib/udev
	fi
done

if [ -e /lib/udev/rules.d/60-cdrom_id.rules ]
then
	mkdir -p ${DESTDIR}/lib/udev/rules.d
	cp -p /lib/udev/rules.d/60-cdrom_id.rules ${DESTDIR}/lib/udev/rules.d
fi

# Handling other stuff

[ "${QUIET}" ] || echo -n " "filesystems
# Configuration: keymap (usefull when using encryption)
if [ -x /bin/loadkeys ] && [ -r /etc/console/boottime.kmap.gz ]
then
	copy_exec /bin/loadkeys /bin

	mkdir -p "${DESTDIR}"/etc
	cp /etc/console/boottime.kmap.gz "${DESTDIR}"/etc
fi

# Configuration: Unique ID
if [ -n "${LIVE_GENERATE_UUID}" ]
then
	mkdir -p "${DESTDIR}"/conf
	uuidgen -r > "${DESTDIR}"/conf/uuid.conf
fi

# Filesystem: btrfs
manual_add_modules btrfs

# Filesystem: cifs
if [ -x /sbin/mount.cifs ]
then
	copy_exec /sbin/mount.cifs /sbin
        manual_add_modules cifs
fi

# Filesystem: ext3/ext4
manual_add_modules ext3
manual_add_modules ext4

# Filesystem: jffs2
manual_add_modules jffs2

if [ -x /usr/bin/rsync ]
then
	copy_exec /usr/bin/rsync /bin
fi

# Filesystem: squashfs
copy_exec /sbin/losetup /sbin
manual_add_modules loop
manual_add_modules squashfs
manual_add_modules sqlzma
manual_add_modules unlzma

# Filesystem: aufs/overlayfs/unionfs
manual_add_modules aufs
manual_add_modules overlayfs
manual_add_modules unionfs

# Filesystem: unionfs-fuse
if [ -x /usr/bin/unionfs-fuse ]
then
	copy_exec /usr/bin/unionfs-fuse /bin
fi

# Filesystem: vfat
manual_add_modules nls_cp437
manual_add_modules nls_iso8859-1
manual_add_modules nls_utf8
manual_add_modules vfat

# Filesystem: ntfs
manual_add_modules ntfs

[ "${QUIET}" ] || echo -n " "devices
# Hardware: cdrom
manual_add_modules ide-cd
manual_add_modules ide-generic
manual_add_modules ohci1394
manual_add_modules sbp2
manual_add_modules sr_mod

# Hardware: usb
manual_add_modules sd_mod

# Hardware: network
auto_add_modules net

# Program: eject
if [ -x /usr/bin/eject ]
then
	copy_exec /usr/bin/eject /bin
fi

[ "${QUIET}" ] || echo -n " "utils
# Program: md5sum
copy_exec /usr/bin/md5sum /bin

# Program: memdisk
if [ -x /usr/bin/memdiskfind ]
then
[ "${QUIET}" ] || echo -n :memdisk
	copy_exec /usr/bin/memdiskfind
	manual_add_modules phram
	manual_add_modules mtdblock
fi

# Program: cpio
# busybox and klibc lacks --no-absolute-filenames and --sparse, needed for snapshots
if [ -e "${DESTDIR}/bin/cpio" ]
then
	# Override already present cpio's, mostly klibc's
	rm "${DESTDIR}/bin/cpio"
fi
copy_exec /bin/cpio /bin

# Program: udev
if [ -x /sbin/udevadm ]
then
	[ "${QUIET}" ] || echo -n " "udev
	copy_exec /sbin/udevadm /sbin
fi
if [ -x /usr/bin/udevinfo ]
then
	[ "${QUIET}" ] || echo -n " "udev
	copy_exec /usr/bin/udevinfo /bin
fi

# Program: wget
if [ -x /usr/bin/wget ]
then
	[ "${QUIET}" ] || echo -n " "wget
	copy_exec /usr/bin/wget /bin
fi

# Program: blockdev
if [ -x /sbin/blockdev ]
then
	[ "${QUIET}" ] || echo -n " "blockdev
	copy_exec /sbin/blockdev /sbin
fi

# FUSE kernel module
manual_add_modules fuse

# FUSE filesystem: httpfs2
if [ -x /usr/bin/httpfs2_ssl ]
then
	[ "${QUIET}" ] || echo -n " "httpfs:ssl
	copy_exec /usr/bin/httpfs2_ssl /bin/httpfs
elif [ -x /usr/bin/httpfs2 ]
then
	[ "${QUIET}" ] || echo -n " "httpfs
	copy_exec /usr/bin/httpfs2 /bin/httpfs
fi

# FUSE filesystem: curlftpfs
if [ -x /usr/bin/curlftpfs ]
then
	[ "${QUIET}" ] || echo -n " "ftpfs
	copy_exec /usr/bin/curlftpfs /bin
fi

# iSCSI
if [ -x /usr/sbin/iscsistart ]
then
	[ "${QUIET}" ] || echo -n " "iscsi
	copy_exec /usr/sbin/iscsistart /bin
	#manual_add_modules ib_iser
	manual_add_modules iscsi_tcp
	manual_add_modules crc32c
fi

if [ "${LIVE_DNS}" = "true" ]
then
	[ "${QUIET}" ] || echo -n " "dns
	#copy_exec /lib/libnss_files.so.*      /lib  # /etc/hosts and /etc/passwd
	copy_exec /lib/libnss_dns.so.*      /lib  # DNS server
	#copy_exec /lib/libnss_compat.so.*      /lib  # /etc/passwd

	# Configuration file - may be needed if /etc/hosts is used.
	#mkdir -p $DESTDIR/etc
	#cp -p /etc/nsswitch.conf $DESTDIR/etc
fi

if [ "${LIVE_UNIONMOUNT}" = "true" ]
then
	[ "${QUIET}" ] || echo -n " "unionmount
	# UnionMount
	# only mount from patched util-linux can do this currently
	copy_exec /bin/mount /bin/mount_full
fi

[ "${QUIET}" ] || echo .