From mboxrd@z Thu Jan  1 00:00:00 1970
From: Junio C Hamano <gitster@pobox.com>
Subject: Re: [FEATURE REQUEST] Filter-branch extend progress with a simple estimated time remaning
Date: Sun, 30 Aug 2015 22:06:26 -0700
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Cc: Mikael Magnusson <mikachu@gmail.com>,
	Gabor Bernat <bernat@primeranks.net>,
	Jeff King <peff@peff.net>, Git List <git@vger.kernel.org>
To: Eric Sunshine <sunshine@sunshineco.com>
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In-Reply-To: <CAPig+cTf2YLWGi2swmMxdx_XpEU=GkAx11ng6VVACMX9NpA_SQ@mail.gmail.com>
	(Eric Sunshine's message of "Sun, 30 Aug 2015 15:40:20 -0400")
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Eric Sunshine <sunshine@sunshineco.com> writes:

> I suppose a viable approach might be to test once outside the loop if
> "date +%s" is supported and print the "(%d elapsed / %d estimated
> remaining)" annotation within the loop if it is, else not. The test
> might look something like this:
>
> echo $(date +%s) | grep -q '^[0-9][0-9]*$' 2>/dev/null && show_eta=t
>
> Platforms, such as Linux, Mac OS X, and FreeBSD, which support "date
> +%s" would get the annotated output, whereas it would fall back
> gracefully to the non-annotated output on platforms such as Solaris
> (and perhaps AIX) which lack it.

I kind of like this for its simplicity, especially given that it
would cover the vast majority of users in practice.