openwrt/scripts/ubinize-image.sh
Alexander Couzens 5625a02e77
ubinize-image: set image sequence from SOURCE_DATE_EPOCH
Set the image sequence number to SOURCE_DATE_EPOCH.
If not set, ubinize will use rand() as image sequence.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
2019-11-03 04:20:21 +01:00

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#!/bin/sh
. $TOPDIR/scripts/functions.sh
part=""
ubootenv=""
ubinize_param=""
kernel=""
rootfs=""
outfile=""
err=""
ubinize_seq=""
ubivol() {
volid=$1
name=$2
image=$3
autoresize=$4
size="$5"
echo "[$name]"
echo "mode=ubi"
echo "vol_id=$volid"
echo "vol_type=dynamic"
echo "vol_name=$name"
if [ "$image" ]; then
echo "image=$image"
[ -n "$size" ] && echo "vol_size=${size}"
else
echo "vol_size=1MiB"
fi
if [ "$autoresize" ]; then
echo "vol_flags=autoresize"
fi
}
ubilayout() {
local vol_id=0
local rootsize=
local autoresize=
local rootfs_type="$( get_fs_type "$2" )"
if [ "$1" = "ubootenv" ]; then
ubivol $vol_id ubootenv
vol_id=$(( $vol_id + 1 ))
ubivol $vol_id ubootenv2
vol_id=$(( $vol_id + 1 ))
fi
for part in $parts; do
name="${part%%=*}"
prev="$part"
part="${part#*=}"
[ "$prev" = "$part" ] && part=
image="${part%%=*}"
prev="$part"
part="${part#*=}"
[ "$prev" = "$part" ] && part=
size="$part"
ubivol $vol_id "$name" "$image" "" "${size}MiB"
vol_id=$(( $vol_id + 1 ))
done
if [ "$3" ]; then
ubivol $vol_id kernel "$3"
vol_id=$(( $vol_id + 1 ))
fi
case "$rootfs_type" in
"ubifs")
autoresize=1
;;
"squashfs")
# squashfs uses 1k block size, ensure we do not
# violate that
rootsize="$( round_up "$( stat -c%s "$2" )" 1024 )"
;;
esac
ubivol $vol_id rootfs "$2" "$autoresize" "$rootsize"
vol_id=$(( $vol_id + 1 ))
[ "$rootfs_type" = "ubifs" ] || ubivol $vol_id rootfs_data "" 1
}
set_ubinize_seq() {
if [ -n "$SOURCE_DATE_EPOCH" ] ; then
ubinize_seq="-Q $SOURCE_DATE_EPOCH"
fi
}
while [ "$1" ]; do
case "$1" in
"--uboot-env")
ubootenv="ubootenv"
shift
continue
;;
"--kernel")
kernel="$2"
shift
shift
continue
;;
"--part")
parts="$parts $2"
shift
shift
continue
;;
"-"*)
ubinize_param="$@"
break
;;
*)
if [ ! "$rootfs" ]; then
rootfs=$1
shift
continue
fi
if [ ! "$outfile" ]; then
outfile=$1
shift
continue
fi
;;
esac
done
if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$outfile" ]; then
echo "syntax: $0 [--uboot-env] [--part <name>=<file>] [--kernel kernelimage] rootfs out [ubinize opts]"
exit 1
fi
ubinize="$( which ubinize )"
if [ ! -x "$ubinize" ]; then
echo "ubinize tool not found or not usable"
exit 1
fi
ubinizecfg="$( mktemp 2> /dev/null )"
if [ -z "$ubinizecfg" ]; then
# try OSX signature
ubinizecfg="$( mktemp -t 'ubitmp' )"
fi
ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg"
set_ubinize_seq
cat "$ubinizecfg"
ubinize $ubinize_seq -o "$outfile" $ubinize_param "$ubinizecfg"
err="$?"
[ ! -e "$outfile" ] && err=2
rm "$ubinizecfg"
exit $err