prepare_sd_image_rescue_vims

#!/bin/sh

## hyphop ##

#= build vim krescue images

set -e

CMD(){
    echo "[#] $@">&2
    "$@"
}

K=/tmp/krescue.imgs

rm -rf $K

mkdir $K

export NO_CHK_OVERSIZE=1

cp ../docs/txt/*.txt $K

TAR=zstd ./prepare_sd_image_rescue_vim2_uboots -r -1

S=/tmp/krescue.sd
T=$S.img
TL=$T.log

CMD cp $T $K/VIM1.krescue.sd.img

OF=$(sfdisk --dump $T| tail -1)

START=${OF#*start= }
START=$(echo ${START%%, *})

[ "$START" ] || {
    echo "[e] not found start offset">&2
    exit 1
}

echo "[i] START: $START"

for n in VIM2 VIM3 VIM3L Edge; do
    T2=$K/$n.krescue.sd.img
    CMD cp $T $T2

    case $n in
	VIM2)
	UBOOT_SD=/tmp/u-boot-mainline/VIM2.u-boot.sd.bin
	;;
	VIM3)
	UBOOT_SD=/tmp/u-boot-mainline/VIM3.u-boot.sd.bin
	;;
	VIM3L)
	UBOOT_SD=/tmp/u-boot-mainline/VIM3L.u-boot.sd.bin
	;;
	Edge)
	UBOOT_SD=/tmp/u-boot-mainline/Edge.u-boot.sd.bin
	;;
    esac

    CMD dd if=/dev/zero bs=512 seek=1 count=$((START-1)) conv=notrunc of=$T2 2>$TL
    CMD dd if=$UBOOT_SD bs=512 skip=1 seek=1 conv=notrunc of=$T2 2>$TL
    CMD dd if=$UBOOT_SD bs=444 count=1 conv=notrunc of=$T2 2>$TL

done

P=$PWD


DATE=$(cat $S/rescue/generated.date)
HASH=$(cat $S/rescue/generated.hash)
TIME=$(cat $S/rescue/generated.time)
SIZE=$(stat -c%s $T)

#META="hash:$HASH time:$TIME size:$SIZE date:$DATE">&2

cp $S/rescue/generated.* $K

cd $K

ZIP_=

[ "OK" ] && {

for t in *.img; do
    md5sum $t > md5sum.txt
    MD5="$(egrep -o ^.{32} md5sum.txt)"
    META="${t%.sd.img}-$HASH-$TIME-$SIZE-$MD5.sd.img"
    echo "[i] META $META"
    sfdisk --dump $t| tail -1
    [ "$ZIP_" ] && {
    zip -9 ${t%.img}.zip $t *.txt generated.*
    (
    printf "\n##KRESCUE_INFO\n"
    echo "HASH: $HASH"
    echo "TIME: $TIME"
    echo "SIZE: $SIZE"
    echo "DATE: $DATE"
    echo "BUILDER: hyphop"
    echo "BORD: ${t%%.*}"
    echo "IMAGE: $t"
    echo "MD5SUM: $MD5"
    echo "LINK: https://dl.khadas.com/Firmware/Krescue/"
    printf "\n##KRESCUE-INFO\n"
    ) | zip -z ${t%.img}.zip
    }
    mv $t $META
    pigz -9 $META
    mv $META.gz $t.gz
done

}

cd $P

for f in $S.tar.*;do 
    [ -f "$f" ] && \
    CMD mv $f $K
done

CMD mv $S.UPDATE $K

t="$S.img.vfat"
SIZE=$(stat -c%s $t)
md5sum $t > md5sum.txt
MD5="$(egrep -o ^.{32} md5sum.txt)"

META="${S%.sd}-$HASH-$TIME-$SIZE-$MD5.sd.img.vfat"

#CMD mv $t $META
#CMD pigz -9 $META
#CMD mv $META.gz $t.gz
#CMD mv $t.gz $K

./zstd_header2 "$(basename $META)
$(cat $S.img.msg)
" > $t.zst
#cat $t | zstd -18 -T0 >> $t.zst
cat $t | zstd --ultra -22 -T0 >> $t.zst
./zstd_header2 "
##KRESCUE##END
" >> $t.zst

rm $t
mv $t.zst $K

rm $K/md5*

cp ../files/image2sd/* $K

echo "[i] DONE">&2