Re: fast-import tweaks for remote helpers (Re: Status of the svn remote helper project (Dec 2010, #1))

From: Sam Vilain <sam@vilain.net>
Date: Dec 12, 2010, 09:53 UTC
Message-ID: <4D049BA5.1060509@vilain.net>
In-Reply-To: <20101212061437.GA17185@burratino>

On 12/12/10 19:14, Jonathan Nieder wrote:

Show 12 quoted lines

> That's good to hear. What should be the syntax for asking fast-import
> not to write to a ref?  Something like this?
>
> 	commit
> 	mark :1
> 	committer c o mitter<committer@example.com>  now
> 	data<<END
> 	...
>
> Writing the sha1 as each commit is written: how early does the
> frontend need access to the sha1?  Would a facility to report marks
> back to the frontend at the end of the stream take care of it?

What happened to --report-fd ?

Show 6 quoted lines

> (In the back of my mind, I have the idea of using a
> file that allows O(1) access, perhaps of the form
>
> 	<commit name for rev 1>  NL
> 	<commit name for rev 2>  NL
> 	...

This doesn't scale to many branches; git-svn started with that and had to use a b-tree in the end. Eg, consider a repository with 10,000 branches and 600,000 revisions.

Thanks for continuing this work, it is most interesting to follow.

Cheers, Sam