Re: GSoC proposal: port pack bitmap support to libgit2.

From: Jeff King <peff@peff.net>
Date: Mar 14, 2014, 04:34 UTC
Message-ID: <20140314043404.GD31906@sigill.intra.peff.net>
In-Reply-To: <CAGqt0zz1W1k92B+XRWEmMEv1=iyej+zi9QUCp2EhA=g+VnCt0g@mail.gmail.com>

On Wed, Mar 12, 2014 at 04:19:23PM +0800, Yuxuan Shui wrote:

Show 14 quoted lines

> I'm Yuxuan Shui, a undergraduate student from China. I'm applying for
> GSoC 2014, and here is my proposal:
> 
> I found this idea on the ideas page, and did some research about it.
> The pack bitmap patchset add a new .bitmap file for every pack file
> which contains the reachability information of selected commits. This
> information is used to speed up git fetching and cloning, and produce
> a very convincing results.
> 
> The goal of my project is to port the pack bitmap implementation in
> core git to libgit2, so users of libgit2 could benefit from this
> optimization as well.
> 
> Please let me know if my proposal makes sense, thanks.

You'd want to flesh it out a bit more to show how you're thinking about tackling the problem:

  - What are the areas of libgit2 that you will need to touch? Be
    specific. What's the current state of the packing code? What
    files and functions will you need to touch?

  - What are the challenges you expect to encounter in porting the code?

  - Can you give a detailed schedule of the summer's work? What will you
    work on in each week? What milestones do you expect to hit, and
    when?

-Peff