#!/bin/bash

# Determines the last release of the agent, not counting package revision
# releases or betas.

set -euo pipefail

head=${1-}

strip_v() {
	sed -e 's/^v//' <<< $1
}

strip_pkg() {
  sed -Ee 's/-(deb|rpm)[0-9]+//' <<< $1
}

tag=$(git describe --abbrev=0 --match 'v[0-9]*' --exclude '*-beta*' $head)

if test -z $tag
then
  echo "Could not determine latest version" >&2
  exit 1
fi

strip_pkg $(strip_v $tag)