#! /bin/sh
set -e

if [ "$#" = "1" ] && [ "$1" = "--all" ]; then 
	set -- "$(git mktree < /dev/null)"
fi

ERRFILE="$(git rev-parse --git-dir)/whitespace.err"
git diff --check "$@" > "$ERRFILE" || $EDITOR -q "$ERRFILE"
rm "$ERRFILE"