Re: Achieving efficient storage of weirdly structured repos

[Nicolas Pitre <nico@cam.org>]

On Sun, 6 Apr 2008, Jeff King wrote:

> My thought was something like:
> 
>   - add a new object type, multiblob; a multiblob contains zero or more
>     "child" sha1s, each of which is another multiblob or a blob. The
>     data in the multiblob is an in-order concatenation of its children.
> 
>   - you would create multiblobs with a "smart" git-add that understands
>     the filetype and splits the file accordingly (in my case, probably a
>     chunk of headers and EXIF data, and then a chunk with the image
>     data).

Well, in your example, the large image part should already be common to 
many objects due to deltas if they're really the same: different objects 
will only have different EXIF data plus a delta reference to the same 
base image object. So in a way the split is already there.  Needs only 
that some applications exploit this information at runtime.


Nicolas