1#!/bin/sh
2# SPDX-License-Identifier: GPL-2.0-or-later
3# Print additional version information for non-release trees.
4
5usage() {
6	echo "Usage: $0 [srctree]" >&2
7	exit 1
8}
9
10cd "${1:-.}" || usage
11
12# Check for git and a git repo.
13if 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
23fi
24