--- /dev/null
+#!/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'