+if test -n "$OPTIONS_SPEC"; then
+ usage() {
+ exec "$0" -h
+ }
+
+ parseopt_extra=
+ [ -n "$OPTIONS_KEEPDASHDASH" ] &&
+ parseopt_extra="--keep-dashdash"
+
+ eval "$(
+ echo "$OPTIONS_SPEC" |
+ git rev-parse --parseopt $parseopt_extra -- "$@" ||
+ echo exit $?
+ )"
+else
+ usage() {
+ die "Usage: $0 $USAGE"
+ }
+
+ if [ -z "$LONG_USAGE" ]
+ then
+ LONG_USAGE="Usage: $0 $USAGE"
+ else
+ LONG_USAGE="Usage: $0 $USAGE
+
+$LONG_USAGE"
+ fi
+
+ case "$1" in
+ -h|--h|--he|--hel|--help)
+ echo "$LONG_USAGE"
+ exit
+ esac
+fi