fwupd

#!/usr/bin/env bash

# Copy/redirect output to stderr
function StdErr () {
	cat - 1>&2
}

# Version info which is always available
function KernelInfo () {
	echo
	vcgencmd version
	uname -a
}

OLD=$(cat "/boot/.firmware_revision")
NEW=$(curl -s "https://api.github.com/repos/Hexxeh/rpi-firmware/git/refs/heads/master" \
	| awk '{ if ($1 == "\"sha\":") { print substr($2, 2, 40) } }')

if [ -z "$NEW" ]; then
	echo "Can't download firmware revision." | StdErr
	KernelInfo | StdErr
	exit 1
elif [ "$NEW" = "$OLD" ]; then
	echo "Firmware is up to date." | StdErr
	echo "Version: ${OLD}" | StdErr
	echo "         https://github.com/Hexxeh/rpi-firmware/commit/${OLD:0:7}" | StdErr
	KernelInfo | StdErr
	exit 2
elif [ -z "$OLD" ]; then
	echo "Firmware never updated. Update available."
else
	echo "Firmware update available."
	echo "Current: ${OLD}"
	echo "         https://github.com/Hexxeh/rpi-firmware/commit/${OLD:0:7}"
fi

echo "Update : ${NEW}"
echo "         https://github.com/Hexxeh/rpi-firmware/commit/${NEW:0:7}"
KernelInfo
exit 0