bump.sh

#!/bin/bash

if [[ $# -gt 1 ]]; then
  version=$1
  echo $version > version.txt
  echo "Bumped version to $version"
else
  version=$(git describe --tags --always)
  tokens=(${version//./ })
  length=${#tokens[@]}
  build_ver=${tokens[length-1]}
  tokens[2]=$(($build_ver+1))
  tokens=$(printf ".%s" "${tokens[@]}")
  echo ${tokens:1} > version.txt
  echo "Bumped version to ${tokens:1}"
fi