diff_cmd () {
        "$merge_tool_path" -u -e "$LOCAL" "$REMOTE"
        return 0
}

merge_cmd () {
        # mergetool.winmerge.trustExitCode is implicitly false.
        # touch $BACKUP so that we can check_unchanged.
        touch "$BACKUP"
        "$merge_tool_path" -u -e -dl Local -dr Remote \
                "$LOCAL" "$REMOTE" "$MERGED"
        check_unchanged
}

translate_merge_tool_path() {
        mergetool_find_win32_cmd "WinMergeU.exe" "WinMerge"
}