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