Re: Get tree of remote repository using custom ssh library.

From: Kevin Daudt <me@ikke.info>
Date: Aug 25, 2021, 05:45 UTC
Message-ID: <YSXY4WoB+Z1aayz4@alpha>
In-Reply-To: <CANXojcyX2uqAp5gLtfH8ffQFQBKkMoPqSzpDUnbFe0QBd5nJqg@mail.gmail.com>

On Sun, Aug 22, 2021 at 08:47:18PM +0200, Stef Bon wrote:

Show 35 quoted lines

> Hi,
> 
> I want to add git support to my fuse workspace, enable browsing of the
> users repositories.
> I've got a custom ssh library:
> 
> struct ssh_channel_s *channel=create_channel(session, _CHANNEL_TYPE_SESSION);
> if (channel==NULL) return -1;
> set_channel_exec(channel, command);
> 
> if (add_channel(channel, CHANNEL_FLAG_OPEN)==-1) goto free;
> 
> if (send_channel_start_command_message(channel, 1, &seq)>0) {
>      struct ssh_payload_s *payload=NULL;
> 
>       payload=get_ssh_payload_channel(channel, &expire, &seq, &error);
> 
>       if (payload && payload->type==SSH_MSG_CHANNEL_DATA) {
> 
> .... process the received data
>       }
>       free_payload(&payload);
> }
> 
> Now I read:
> 
> https://git-scm.com/book/en/v2/Git-Internals-Transfer-Protocols
> and
> https://www.git-scm.com/docs/protocol-v2
> 
> How can I get remote repositories of a user on a server (say
> github.com, user stefbon) and browse each HEAD repository and the
> source tree?
> 
> Stef Bon

Hello Stef,

Git has no way of knowing what repositories might exist on a given server. They might live everywhere, and git does not keep track of what repositories are created on a central location, so there is not central directory to query.

Besides that, services like github do not let you remotely browse repositories over SSH, they only allow you to run git-upload-pack / git-receive-pack or equivalent to handle the git protocol.

The only way to programatically explore what is available remotely is to use an API that exposes this information (most public git forges provide one).

Hope this helps, Kevin