On Wed, Nov 29, 2017 at 06:35:16PM +0000, Thomas Adam wrote:
> On Wed, Nov 29, 2017 at 03:37:50PM +0100, [email protected] wrote:
> > + if (print_waiting_for_editor) {
> > + fprintf(stderr, _("hint: Waiting for your editor
> > input..."));
> > fflush(stderr);
>
> Just FYI, stderr is typically unbuffered on most systems I've used, and
> although the call to fflush() is harmless, I suspect it's not having any
> effect. That said, there's plenty of other places in Git which seems to think
> fflush()ing stderr actually does something.
I'd prefer to keep them (including this one), even if they are noops on
most platforms, because:
1. They serve as a note for readers of the code that it's important
for the output to have been printed immediately.
2. We build on some funny and antique platforms. I wouldn't be
surprised if there's one that line buffers by default. Or even a
modern system with funny settings (e.g., using the GNU stdbuf
tool).
(I know you said later you don't think this case needs to be removed,
but I want to make it clear I think it's a reasonable project-wide
policy to not assume we we know how stderr is buffered).
-Peff
