#!/usr/bin/env bash

if [ -z ${TAG_NAME+x} ]; then
  if [ -z ${BRANCH_NAME+x} ]; then
    BRANCH_NAME=$(echo $(git branch --show-current) || \
	  echo $(git name-rev --name-only HEAD))
  fi
  GIT_VERSION=$(echo ${BRANCH_NAME} | grep -q 'release/' \
    && echo ${BRANCH_NAME} | sed -e 's|release/|v|' -e 's/$/-RC/' || \
    echo $(git describe --always --tags --dirty 2>/dev/null) || echo v0)
else
  GIT_VERSION=${TAG_NAME}
fi

if [ -z ${VERSION+x} ]; then
  VERSION=$(echo ${GIT_VERSION} | sed -e 's|^origin/||')
fi

if [ -z $1 ]; then
  echo "${VERSION}"
else
  echo ${VERSION} | sed -e 's/^v//'
fi