asahi-opensuse/kiwi/make-installer.sh

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#!/bin/sh
set -eu
fail() {
echo $* >&2
exit 1
}
requireCommands() {
for cmd in $*; do
if ! command -v $cmd &> /dev/null; then
fail "Cannot find required command: $cmd"
fi
done
}
date=$(date +%Y%m%d)
image="${1}"
package="${2}"
if [ ! -r "$image" ]; then
fail "$image does not exist or cannot be read!"
fi
if [ -e "$package" ]; then
fail "$package already exists, aborting"
fi
requireCommands 7z awk cat cp dd fdisk file mkdir mv stat wget
workdir="$(mktemp -dp /var/tmp)"
basedir="$PWD"
imagename="$(basename "$image")"
imagedir="$(dirname "$image")"
# extract filesystems from disk image
pushd "$imagedir" > /dev/null
eval "$(fdisk -Lnever -lu -b 4096 "$imagename" | awk "/^${imagename}/ { printf \"dd if=${imagename} of=${workdir}/%s skip=%s count=%s bs=4096\\n\", \$1, \$2, \$4 }")"
popd > /dev/null
# build package
mkdir -p "${workdir}/package/esp"
7z x -o"${workdir}/package/esp" "${workdir}/${imagename}1"
mv "${workdir}/${imagename}2" "${workdir}/package/boot.img"
mv "${workdir}/${imagename}3" "${workdir}/package/root.img"
esp_volume_id="$(file "${workdir}/${imagename}1" | awk -v 'RS=,' '/serial number/ { print $3 }')"
esp_size="$(stat -c %s "${workdir}/${imagename}1")"
boot_size="$(stat -c %s "${workdir}/package/boot.img")"
root_size="$(stat -c %s "${workdir}/package/root.img")"
pushd "${workdir}/package" > /dev/null
7z a -tzip -r "${basedir}/${package}" .
popd > /dev/null
cat > installer_data-$package.json <<EOF
{
"os_list": [
{
"name": "openSUSE Tumbleweed",
"default_os_name": "openSUSE Tumbleweed",
"boot_object": "m1n1.bin",
"next_object": "m1n1/boot.bin",
"package": "${package}.zip",
"supported_fw": ["12.3", "12.3.1", "12.4"],
"partitions": [
{
"name": "EFI",
"type": "EFI",
"size": "${esp_size}B",
"format": "fat",
"volume_id": "${esp_volume_id}",
"copy_firmware": true,
"copy_installer_data": true,
"source": "esp"
},
{
"name": "Boot",
"type": "Linux",
"size": "${boot_size}B",
"image": "boot.img"
},
{
"name": "Root",
"type": "Linux",
"size": "${root_size}B",
"expand": true,
"image": "root.img"
}
]
}
]
}
EOF