# Check for git and a git repo.
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
# Do we have an untagged version?
- if [ "`git name-rev --tags HEAD`" = "HEAD undefined" ]; then
+ if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
printf '%s%s' -g `echo "$head" | cut -c1-8`
fi
# Are there uncommitted changes?
- if git diff-files | read dummy; then
+ if git diff-index HEAD | read dummy; then
printf '%s' -dirty
fi
fi