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      1 #!/bin/sh
      2 # SPDX-License-Identifier: GPL-2.0-or-later
      3 # Print additional version information for non-release trees.
      4 
      5 usage() {
      6 	echo "Usage: $0 [srctree]" >&2
      7 	exit 1
      8 }
      9 
     10 cd "${1:-.}" || usage
     11 
     12 # Check for git and a git repo.
     13 if head=`git rev-parse --verify HEAD 2>/dev/null`; then
     14 	# Do we have an untagged version?
     15 	if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
     16 		printf '%s%s' -g `echo "$head" | cut -c1-8`
     17 	fi
     18 
     19 	# Are there uncommitted changes?
     20 	if git diff-index HEAD | read dummy; then
     21 		printf '%s' -dirty
     22 	fi
     23 fi
     24