GIT-VERSION-GEN

#!/bin/sh
# SPDX-License-Identifier: Apache-2.0
GVF=GIT-VERSION-FILE
LF='
'
if [ -d .git ]; then
VN=$(git describe --tags --always --match "v[0-9]*" HEAD 2>/dev/null) &&
case "$VN" in
*$LF*) (exit 1) ;;
v[0-9]*)
	git update-index -q --refresh
	test -z "$(git diff-index --name-only HEAD --)" ||
	VN="$VN-dirty" ;;
esac
fi
if test -r $GVF
then
	VC=$(sed -e 's/^GIT_DESC = //' <$GVF)
else
	VC=unset
fi
test "$VN" = "$VC" || {
	#echo >&2 "GIT_DESC = $VN"
	echo "GIT_DESC = $VN" >$GVF
}