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X-Authentication-Warning:	slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date:	Fri, 9 May 2003 17:15:15 -0400 (EDT)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	lists AT m8y DOT org
cc:	cygwin AT cygwin DOT com
Subject:	Re: setup.exe bandwidth waste
In-Reply-To:	<Pine.LNX.4.53.0305091702260.14891@nautilus.m8y.org>
Message-ID:	<Pine.GSO.4.44.0305091710000.9872-100000@slinky.cs.nyu.edu>
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On Fri, 9 May 2003 lists AT m8y DOT org wrote:

> Since I'm on the mailing list now, might as well ask something that has
> bugged me for some time.
> Far too often, a connection fails at 99% of a huge download (say tetex
> doc).
>
> When something like this happens under gentoo, it does a continuation.
>
> Why doesn't setup.exe check the MD5, if fails, try a continuation, then
> MD5 after that as well?
>
> I feel guilty wasting 10-15MB of bandwidth just to redownload something.

Derek,

Nobody felt the need to.  <http://cygwin.com/acronyms/#PTC>

> Also, on a related note, I was curious if Cygwin does incremental
> updates, or if it just keeps one massive binary per version.

The current packaging model is one massive binary per version -- it eases
the task of maintaining packages (which, by the way, is done by
volunteers).  If you'd like to push for a change, you're welcome to (it's
an open source project), but that's a very big undertaking (involving,
among other things, changes to setup.exe).  Interestingly enough, there
was a proposal at some point to do exactly the opposite - maintain one
huge binary for the whole of Cygwin instead of separate package files.
Reading that thread might be useful.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_		pechtcha AT cs DOT nyu DOT edu
ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

Knowledge is an unending adventure at the edge of uncertainty.
  -- Leto II


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