Re: [Flickrfs-users] filesystem layout

[Manish R. J. <man...@gm...>]

On 11/11/05, Paul Pelzl <pe...@ee...> wrote:
>
>
> FlickrFS is really cool, but after playing around with it a bit I feel
> like it's also missing some pieces. It would be nice if there were a
> direct interface into the photostream, as well as a way to edit the
> metadata directly. I'd like to suggest one possible filesystem layout,
> just for the sake of discussion:
>
> ------------------------------------------------------------------------
> /flickrfs_mount
> stream/
> metadata/
> photo\ title\ 1/
> tags # ASCII file containing list of tags
> sets # ASCII file containing sets for this photo
> description # ASCII file containing photo description
> photo\ title\ 2/
> tags
> sets
> description
> photo\ title\ 3/
> tags
> sets
> description
> ...
> photo\ title\ 1 # jpeg files
> photo\ title\ 2
> photo\ title\ 3
> ...
> tags/
> ... # as implemented currently
> sets/
> ... # as implemented currently
> ------------------------------------------------------------------------
>
> So the idea here is that the stream/ directory is sort of a primary
> interface, with a metadata/ subdir that lets the user change the
> metadata for any of the photos. (It would be even nicer to have a
> ReiserFS 4-style system for handling metadata...) Dropping a new photo
> into stream/ should (1) upload the file and (2) add blank entries to the
> proper location in stream/metadata/ .



It will be desirable that, the metadata information can be edited easily,
for a whole lot of photos. For e.g. adding a new tag 'tag1', can be easily
updated for all the photos in the set. So, I think in that case, it will be
more useful if the files containing metadata be 1 file per image. For image
named 'img1', the metadata file will be named '.img1' (<dot>img1), and exis=
t
in the same directory as the image itself. So, this will also remain hidden
from the user, so as to avoid any cluttering, while on the other hand,
allows using grep, sed scripts to do a mass change on all the .*.meta
(metadata) files.

Note that I'm no filesystem expert, so I'm pretty clueless when it comes
> to the technical limitations of something like this.
>
> Also, it feels a bit inelegant to have to set the permissions of a photo
> *before* copying it into the flickr FS. It would be nice to be able to
> change the permissions on pre-existing photos in-place.


Next version will allow that.

Paul


Nice ideas Paul :).

Regards
Manish


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