[ansel] Ansel::listGalleries()

[Chuck Hagenbuch]

Quoting Ben Chavet <ben at chavet.net>:

> I started to mess with this & ran into a snag.  Images are stored in 
> the vfs in a directory structure that reflects the gallery tree.  If 
> we were to move a
> gallery, we'd have to move the images in the vfs, too.
>
> This, plus the idea of making an image "bucket" with pointers makes me
> think we should re-evaluate the vfs directory structure.  I though of 
> just having everything in the .horde/ansel directory, but that would 
> be a lot of data in one directory.  Another thought was to have 
> .horde/ansel/full,
> .horde/ansel/thumb, and .horde/ansel/screen directories.
>
> Any other thoughts?

As Heath suggested, hashing is a good idea. I'd do it on the first 
character of
the  datatree_id that the image gets, which will be a hex value (a to f).
That's 16 buckets; if necessary we could then hash those buckets on the 2nd
character of the name, which would be 256, which is probably enough. :)

-chuck

--
"Regard my poor demoralized mule!" - Juan Valdez