#!/bin/sh

version_file=$1

if [ -f $version_file ] ; then
  git_version=`cat $version_file`
else
  if which git > /dev/null; then
    git_version=`git describe --abbrev=4 HEAD 2>/dev/null`

    # Is the working tree dirty?
    if ! git diff-index --quiet --cached HEAD --ignore-submodules || \
       ! git diff-files --quiet --ignore-submodules ; then
      git_version="$git_version-dirty"
    fi
  else
    git_version=UNKNOWN
  fi
fi

echo "$git_version" | sed -e 's/openafs-[^-]*-//' -e 's/_/./g' | tr -d '\012'