Re: question about resume support.

From: Kevin Daudt <me@ikke.info>
Date: Feb 22, 2015, 15:53 UTC
Message-ID: <20150222155312.GA7906@vps892.directvps.nl>
In-Reply-To: <20150221200127.4ade03ad@archus>

On Sat, Feb 21, 2015 at 08:01:27PM +0100, drathir87@gmail.com wrote:

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> Hi... Im wonder there is planned or maybe there is support of resuming
> interrupted git operation e.g. cloning repositories? Not sure about how
> hard that could be to implement, but greatly should decrease of
> bandwidth used by persons with weak network connection...
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While not the best solution, what's currently possible is to provide an initial git bundle that is regularly updated which can be downloaded through other protocols that do provide resumption. Users can use that to setup the repository, and then use the normal git protocol to get the latest updates.

The reason this is not easy to facilitate is that the packs git generates are only generated in-memory. These packs would need to be cached on disk and somehow have a mapping to the user that downloaded that pack. Also there would need to be some kind of way to expire these cached packs. The protocol would need to be updated to indicate a users wants to resume a clone (or fetch) and what parts are still missing, and probably lots of other details I'm missing.

Kevin