asahi-kiwi-descriptions/make-asahi-installer-package.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="${1:-outdir/Fedora-Asahi-Remix.aarch64-0.0.0.raw}"
package="${2:-fedora-rawhide-${date}}"
if [ ! -r "$image" ]; then
fail "$image does not exist or cannot be read!"
fi
if [ -e "$package" ]; then
fail "$package already exists, aborting"
fi
requireCommands sfdisk awk fatcat zip
workdir="$(mktemp -d)"
trap 'rm -rf "$workdir"' EXIT
basedir="$PWD"
imagename="$(basename "$image")"
imagedir="$(dirname "$image")"
# extract filesystems from disk image
pushd "$imagedir" > /dev/null
eval "$(sfdisk -ql "$imagename" | awk "NR>=2 { printf \"dd if=${imagename} of=${workdir}/%s skip=%s count=%s\\n\", \$1, \$2, \$4 }")"
popd > /dev/null
# build package
mkdir -p "${workdir}/package/esp"
fatcat "${workdir}/${imagename}1" -x "${workdir}/package/esp"
mv "${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")"
# TODO: round up the size instead of hardcoding
truncate -s 10G "${workdir}/package/root.img"
root_size="$(stat -c %s "${workdir}/package/root.img")"
# boot picket icon
if [ ! -f fedora.icns ]; then
wget https://pagure.io/fedora-logos/blob/master/f/bootloader/fedora.icns
fi
cp -p fedora.icns "${workdir}/package"
pushd "${workdir}/package" > /dev/null
zip -r "${basedir}/${package}" .
popd > /dev/null
cat > installer_data.json <<EOF
{
"os_list": [
{
"name": "Fedora Rawide",
"default_os_name": "Fedora Rawhide",
"boot_object": "m1n1.bin",
"next_object": "m1n1/boot.bin",
"package": "${package}.zip",
"icon": "fedora.icns",
"supported_fw": ["12.3", "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