Re: support git+mosh for unreliable connections

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On Wed, Apr 15, 2015 at 04:41:42PM +0200, Johannes Schindelin wrote:
> Hi Praveen,
> 
> On 2015-04-15 16:18, Pirate Praveen wrote:
> > On Wednesday 15 April 2015 07:22 PM, Michael J Gruber wrote:
> >> What would that require git to do, beyond taking whatever you tell it
> >> (using GIT_SSH or _GIT_SSH_COMMAND) to use as a drop in replacement for ssh?
> > 
> > May be support git+mosh as a protocol, since it is not a drop in
> > replacement. It is redesigned remote shell. The ideas it uses for
> > session resumption needs to be reimplemented. This will need support
> > from git, because it needs server side to be modified. Use SSP to return
> > the the current progress for a particular session (it uses AES session ids).
> 
> It will need support from Git alright, but not as much as from mosh, see my other reply: Mosh was not designed for non-interactive use. That support would have to be added before we can go any further.

is that really relevent? mosh doesn't support things like X forwarding
or port forwarding, but it certainly does support ssh <host> <command>
and then doing IO.  It might not support not doing terminal emulation
stuff, but that seems like a simple thing to change in principal at which
point I think it would support enough of ssh's functionality its a drop
in replacement as far as git is concerned.  Seems to me mosh is close
enough on its own its worth experimentation by someone who cares.

Trev

> > So when a client connect with a session id, git server side can respond
> > with the current state, how many objects received in that session, and
> > client can continue from where it stopped. Client also will need to
> > store session information.
> 
> No, the protocol can stay exactly the same, once you have a way to communicate non-interactively via mosh.
> 
> Ciao,
> Johannes
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