#!/bin/sh

# This file has been adopted from the git project
# You can find the original at https://github.com/git/git/blob/master/GIT-VERSION-GEN

LPVF=version.h
DEF_VER=v1.3.3.GIT

LF='
'

# First see if there is a version file (included in release tarballs),
# then try git-describe, then default.
if test -f version
then
	VN=$(cat version) || VN="$DEF_VER"
elif test -d ${GIT_DIR:-.git} -o -f .git &&
	VN=$(git describe --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
then
	VN=$(echo "$VN" | sed -e 's/-/./g');
else
	VN="$DEF_VER"
fi

VN=$(expr "$VN" : v*'\(.*\)')

if test -r $LPVF
then
	VC=$(sed -ne 's/^#define LASTPASS_CLI_VERSION "\(.*\)"/\1/p' <$LPVF)
else
	VC=unset
fi
test "$VN" = "$VC" || {
	echo >&2 "LASTPASS_CLI_VERSION  =$VN"
	echo "#define LASTPASS_CLI_VERSION \"$VN\"" >$LPVF
	echo "#define LASTPASS_CLI_USERAGENT \"LastPass-CLI/\" LASTPASS_CLI_VERSION" >>$LPVF
}