From: Luke Robison <robison@arlut.utexas.edu>
To: Duy Nguyen <pclouds@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: Understanding Binary Deltas within Packfile
Date: Tue, 20 Mar 2018 13:34:48 -0500 [thread overview]
Message-ID: <751c0493-435c-4a98-4d1c-e3d6677c62d8@arlut.utexas.edu> (raw)
In-Reply-To: <CACsJy8ABgZy=eJ7niUysb2XZ3qUr3J+jmh_5YWZ1ZDiFCrb0tA@mail.gmail.com>
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On 3/20/2018 11:03 AM, Duy Nguyen wrote:
> On Tue, Mar 20, 2018 at 4:43 PM, Luke Robison <robison@arlut.utexas.edu> wrote:
>> Is there any documentation of the contents of the binary delta datain a
>> packfile, and how to interpret them? I found
>> https://github.com/git/git/blob/master/Documentation/technical/pack-format.txt
>> documenting the packfile itself, but the "compressed delta data" seems
>> largely undocumented. The source code of
>> https://github.com/git/git/blob/master/diff-delta.c is pretty dense.
> The output is consumed by patch_delta() in patch-delta.c if I'm not
> mistaken. This function is less than 100 lines, probably much easier
> to see the delta format.
Thank you, that was much easier to read, and I've got my prototype
working now. I also found this site to be quite helpful:
http://stefan.saasen.me/articles/git-clone-in-haskell-from-the-bottom-up/#delta_encoding
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next prev parent reply other threads:[~2018-03-20 18:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-20 15:43 Understanding Binary Deltas within Packfile Luke Robison
2018-03-20 16:03 ` Duy Nguyen
2018-03-20 18:34 ` Luke Robison [this message]
2018-03-20 19:12 ` Duy Nguyen
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