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List: git
Subject: Re: [PATCH v3 1/1] vreportf(): avoid relying on stdio buffering
From: Jeff King <peff () peff ! net>
Date: 2019-10-31 15:48:37
Message-ID: 20191031154837.GB30187 () sigill ! intra ! peff ! net
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On Thu, Oct 31, 2019 at 11:26:30AM +0100, Johannes Schindelin wrote:
> > Another more far-fetched one: IIRC our stdio wrappers on Windows do some
> > magic to convert ANSI color codes into actual terminal codes. Could that
> > be a problem here? I think we'd kill off any color codes in the actual
> > message due to the control-code replacement. In theory the prefix could
> > have them. I don't think any code does now, but the PUSH_COLOR_ERROR
> > stuff in builtin/push.c is getting close. I wouldn't be surprised for
> > that to eventually get folded into error().
>
> A valid concern!
>
> As per eac14f8909d (Win32: Thread-safe windows console output,
> 2012-01-14), `write()` _implicitly_ gets the ANSI emulation of
> `winansi.c`.
>
> So I think we're good.
>
> Thanks for thinking of all kinds of angles,
Good. Thanks for humoring my wild speculation. :)
I remember being confused by this not too long ago, so I did a quick dig
in the archive. And indeed, there was a confusing comment which caught
me in 2016, and which you removed back then (via 3d0a83382f26). I even
reviewed the patch. Maybe this time I will remember the outcome!
-Peff
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