Re: Git clonebundles

From: Christian Couder <christian.couder@gmail.com>
Date: Feb 5, 2017, 16:37 UTC
Message-ID: <CAP8UFD2ffeHr0-z3xPFFODqRTTgVnrrWcYRbASpUOrp0QGnp6g@mail.gmail.com>
In-Reply-To: <CAJo=hJsS6FmL9iNScaXqkWJumALfGr8Od5QkbfZ+ZG3osxkp7Q@mail.gmail.com>

On Sat, Feb 4, 2017 at 6:39 PM, Shawn Pearce <spearce@spearce.org> wrote:

Show 33 quoted lines

> On Mon, Jan 30, 2017 at 11:00 PM, Stefan Saasen <ssaasen@atlassian.com> wrote:
>>
>> Bitbucket recently added support for Mercurial’s clonebundle extension
>> (http://gregoryszorc.com/blog/2015/10/22/cloning-improvements-in-mercurial-3.6/).
>> Mercurial’s clone bundles allow the Mercurial client to seed a repository using
>> a bundle file instead of dynamically generating a bundle for the client.
> ...
>> Prior art
>> ~~~~~~~~~
>>
>> Our proof-of-concept is built on top of ideas that have been
>> circulating for a while. We are aware of a number of proposed changes
>> in this space:
>>
>>
>> * Jeff King's work on network bundles:
>> https://github.com/peff/git/commit/17e2409df37edd0c49ef7d35f47a7695f9608900
>> * Nguyễn Thái Ngọc Duy's work on "[PATCH 0/8] Resumable clone
>> revisited, proof of concept":
>> https://www.spinics.net/lists/git/msg267260.html
>> * Resumable clone work by Kevin Wern:
>> https://public-inbox.org/git/1473984742-12516-1-git-send-email-kevin.m.wern@gmail.com/
>
> I think you missed the most common deployment of prior art, which is
> Android using the git-repo tool[1]. The git-repo tool has had
> clone.bundle support since Sep 2011[2] and the Android Git servers
> have been answering /clone.bundle requests[3] since just before that.
> The bundle files are generated with `git bundle create` on a regular
> schedule by cron.
>
> [1] https://gerrit.googlesource.com/git-repo/+/04071c1c72437a930db017bd4c562ad06087986a/project.py#2091
> [2] https://gerrit.googlesource.com/git-repo/+/f322b9abb4cadc67b991baf6ba1b9f2fbd5d7812
> [3] https://android.googlesource.com/platform/frameworks/base/clone.bundle

There is also Junio's work on Bundle v3 that was unfortunately recently discarded. Look for "jc/bundle" in:

http://public-inbox.org/git/xmqq4m0cry60.fsf@gitster.mtv.corp.google.com/

and previous "What's cooking in git.git" emails.

I am also working on adding external object database support using previous work by Peff:

http://public-inbox.org/git/20161130210420.15982-1-chriscool@tuxfamily.org/

that could be extended to support clone bundles.

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