#!/bin/sh

# Quick and dirty NRPE script to check if
# the local version of Gitea is up to date.

# Stop at first uncatched error
set -e

# note: some local problems with IPv4, the quickest way was to force IPv6.
LOCAL_VERSION="$( wget -6 -O - -q "https://$( hostname -f )/api/v1/version" | sed -n 's/{"version":"\([^"]\+\)"}/\1/p' )"
UPSTREAM_VERSION="$( wget -q -O - "https://dl.gitea.io/gitea/" | egrep -- '<a href="/gitea/[0-9]+\.[0-9]+\.[0-9]+/?"' | egrep -o "[0-9]+\.[0-9]+\.[0-9]+" | sort --version-sort | tail -n 1 )"

if [ "$UPSTREAM_VERSION" = "$LOCAL_VERSION" ]; then
	echo "OK ($LOCAL_VERSION / $UPSTREAM_VERSION)"
	exit 0
else
	echo "WARNING ($LOCAL_VERSION / $UPSTREAM_VERSION)"
	exit 1
fi