Re: [PATCH 1/4] config: factor out config file stack management

> I wonder if it would be more obvious with the more usual OO-struct
> functions, like:
>
>   struct config_source {
>           ...
>   };
>   void config_source_init_file(struct config_source *, const char *fn);
>   void config_source_init_strbuf(struct config_source *,
>                                  const struct strbuf *buf);
>   void config_source_clear(struct config_source *);
>
>   int config_source_parse(struct config_source *);
>
> and then the use would be something like:
>
>   struct config_source top;
>   int ret;
>
>   config_source_init_file(&top, "foo");
>   ret = config_source_parse(&top);
>   config_source_clear(&top);
>
>   return ret;
>
> I.e., "init" constructors, a "clear" destructor, and any methods like
> "parse" that you need.