Junio C Hamano <gitster@xxxxxxxxx> writes:
> I'd have to say that the ability to create an empty file is more
> important in the longer term. Can't the workaround be done to
> write_file() instead? I actually do not mind if the solution were
> to introduce a newhelper "write_empty_file()", but the way it is
> written in the code before this patch, i.e.
>
> write_file(FILENAME, "")
>
> is so obvious a way to create an empty file, so if we do not have to
> resort to such a hackery to special case an empty file, that would
> be preferrable.
It turns out that we have dealt with this before.
The trick employed by 7d7d6802 ("silence a bunch of
format-zero-length warnings", 2014-05-04) is still a caller side
workaround, but to do
- status_printf_ln(s, GIT_COLOR_NORMAL, "");
+ status_printf_ln(s, GIT_COLOR_NORMAL, "%s", "");
to the function whose third parameter is printf format.
I do not know if it is a good idea to define a macro
#define EMPTY_CONTENTS "%s", ""
in git-compat-util.h and then replace all the occurrences of "%s", ""
in the source code with it. That way, we'd be able to create an
empty file with
write_file(FILENAME, EMPTY_CONTENTS);
and write out an empty line with
status_printf_ln(s, GIT_COLOR_NORMAL, EMPTY_CONTENTS);
and they would read naturally. But may be it is a bit too cute an
idea? I dunno.
