[KimDaBa] Rescan for images proposal

[Jesper K. Pedersen]

Interesting idea.
Still with ~6000 images here, it takes less than 2 sec to rescan.
How long does it take for you, and how many images do you have?

On Friday 21 October 2005 04:53, Marco Molteni wrote:
| On Friday 21 October 2005 03:57, Robert L Krawitz wrote:
| >    Date: Thu, 20 Oct 2005 20:34:25 +0200
| >    From: Eugen Dedu <Eugen.Dedu at pu-pm.univ-fcomte.fr>
| >    Cc: kimdaba at kdab.net
| >
| >    Marco Colnaghi wrote:
|
| [..]
|
| >    > 2001/
| >    >     /010515_SeaTrip
| >    > 2002/
| >    >     /020712_SeaTrip2002
| >    >     /020712_Mountain
| >    > 2005/
| >    >     /050811_Holidays
| >    >     /050902_Friends
| >    >     /051001_NewDir
| >    >
| >    > When I add the new subdir 051001_NewDir in 2005 dir I should not
| >    > need to rescan all the tree, I would like to rescan 2005 subtree
| >    > only.
| >    >
| >    > Thanks for you opinions,
| >    > bye, Marco.
| >
| >    Your feature adds complexity.  IMHO, I think it's not necessary,
| > since you execute rarely kimdaba with new images.  The most
| > frequently you execute it without new images.
| >
| > That depends upon individual usage patterns.  If you're an active
| > photographer, you might be adding images multiple times per day.
| >
| > This feature could also be useful as a way of adding new directories
| > to the collection (currently kimdaba can only handle images in a
| > single directory tree).
|
| I agree with Robert.
|
| Another possibility to speed up rescanning without the need to have
| another dialogue window is to add the possibility of rescanning
| looking only at directory dates. Let me explain:
|
| I assume that the most of time in rescanning is due to the fact that
| you might have a *lot* of files, and a subset of those files must
| be read to calculate the md5 signature. It this is true, one might
| use as workflow the convention that new files are added to new
| directories, say a new dir is created automatically each time that
| you download images from the camera.
|
| In this case, the rescanning algorithm could look at the date of the
| lest time kimdaba run, and only at the date of each directory in the
| whole directory tree, and rescan only the directories with newer
| dates.
|
| So you would have to rescan modes:
| -rescan as usual (with today's semantics)
| -rescan new dirs only
|
| marco
|
|
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-- 
Jesper K. Pedersen          |  Klarälvdalens Datakonsult
Senior Software Engineer    |  www.klaralvdalens-datakonsult.se
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