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# Copyright (C) 2009 One Laptop Per Child
# Licensed under the terms of the GNU GPL v2 or later; see COPYING for details.
. $OOB__shlib
compress=$(read_config sd_card_image compress_disk_image)
keep_img=$(read_config sd_card_image keep_disk_image)
make_zd=$(read_config sd_card_image make_zd)
osname=$(image_name)
function make_zd() {
local ext=$1
[ -z "$ext" ] && ext="zd"
local output_name=$osname.$ext
local diskimg=$intermediatesdir/$output_name.disk.img
local output=$outputdir/$output_name
if [[ "$make_zd" == 1 ]]; then
echo "Making ZD image for $output_name..."
$bindir/zhashfs 0x20000 sha256 $diskimg $output.zsp $output
echo "Creating MD5sum of $output_name..."
pushd $outputdir >/dev/null
md5sum $output_name > $output_name.md5
popd >/dev/null
fi
if [[ "$keep_img" == "1" ]]; then
if [[ "$compress" == "1" ]]; then
echo "Compressing disk image..."
tar -czS -f $output.disk.img.tar.gz -C $intermediatesdir $output_name.disk.img
rm -f $diskimg
else
mv $diskimg $outputdir
fi
fi
}
found=0
oIFS=$IFS
IFS=$'\n'
for line in $(env); do
[[ "${line:0:24}" == "CFG_sd_card_image__size_" ]] || continue
vals=${line#*=}
disk_size=${vals%,*}
ext=
expr index "$vals" ',' &>/dev/null && ext=${vals#*,}
make_zd $ext
found=1
done
IFS=$oIFS
# When no size options were specified, we make a default image.
[ "$found" = "1" ] || make_zd
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