PhotonVision/scripts/generatePiImage.sh

# We need to look for a JAR with the "-raspi" suffix so we don't accidentally bundle the big jar
# Not that it really matters, but it'll save us 50 megs or so
NEW_JAR=$(realpath $(find . -name photonvision\*-linuxarm32.jar))
echo "Using jar: " $NEW_JAR
sudo apt-get install -y xz-utils
curl -sk https://api.github.com/repos/photonvision/photon-pi-gen/releases/tags/v2023.1.0-beta-1 | grep "browser_download_url.*xz" | cut -d : -f 2,3 | tr -d '"' | wget -qi -
ls
FILE_NAME=$(ls | grep image_*.xz)
echo "Downloaded " $FILE_NAME
xz -T0 -v --decompress $FILE_NAME
IMAGE_FILE=$(ls | grep *.img)
ls
echo "Unziped image: " $IMAGE_FILE
TMP=$(mktemp -d)
LOOP=$(sudo losetup --show -fP "${IMAGE_FILE}")
sudo mount ${LOOP}p2 $TMP
pushd .
cd $TMP/opt/photonvision
sudo cp $NEW_JAR photonvision.jar

cd $TMP/etc/systemd/system/multi-user.target.wants
sudo bash -c "printf \
\"[Unit]
Description=Service that runs PhotonVision

[Service]
WorkingDirectory=/opt/photonvision
ExecStart=/usr/bin/java -Xmx512m -jar /opt/photonvision/photonvision.jar
ExecStop=/bin/systemctl kill photonvision
Type=simple
Restart=on-failure
RestartSec=1

[Install]
WantedBy=multi-user.target\" > photonvision.service"

popd
sudo umount ${TMP}
sudo rmdir ${TMP}
NEW_IMAGE=$(basename "${NEW_JAR/jar/img}")
mv $IMAGE_FILE $NEW_IMAGE
xz -T0 -v -z $NEW_IMAGE
mv $NEW_IMAGE.xz $(basename "${NEW_JAR/.jar/-image.xz}")