| #!/bin/sh | 
 | # Print additional version information for non-release trees. | 
 |  | 
 | usage() { | 
 | 	echo "Usage: $0 [srctree]" >&2 | 
 | 	exit 1 | 
 | } | 
 |  | 
 | cd "${1:-.}" || usage | 
 |  | 
 | # 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 | 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-index HEAD | read dummy; then | 
 | 		printf '%s' -dirty | 
 | 	fi | 
 | fi |