#!/bin/bash

# Determines the current version form the git tags in the repo. In between
# releases, the version is the previous release suffixed with "-post".

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

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

latest_tag="git describe --abbrev=0 --match v[0-9]*"

tag=$($latest_tag --exact-match 2>/dev/null)

if test -z $tag || [[ $tag =~ (deb|rpm) ]]
then
	tag=$($latest_tag)-post
fi

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

strip_pkg $(strip_v $tag)