In my use case it will be:
- Modify xmp parameters of iop (filter tuning) externally
- refresh thumbnails and dt DB according to xmp as when you import new
files with xmp attached
A button "refresh settings from XMP"
In the light table would be fine for me :-)
In that way no need to rescan unnecessary files, only current working set.
Alexandre
On 14 Oct 2013 16:04, "Giacomo Catenazzi" <[email protected]> wrote:
>
> I don't think we need inotify or some "live" notifier. I think people
should close one program before to start the new one, especially
considering that there is no lock mechanism defined using xmp. Anyway I
think it should be user settable, and possibly also to select what part
should be refreshed.
>
> My user cases are:
> - using an external georeferencing/geotagging tool (I usually curios to
quick check my photo, before to do the geotagging)
> - handling keywords outside darktable (bulk changes)
>
> BTW git can scan for modified file very fast (e.g. on kernel, 44k files).
Probably we should check how git work. I think git store modification data
of directories, so not to traverse untouched subtrees.
>
> ciao
> cate
>
>
> On Mon, Oct 14, 2013 at 3:26 PM, Rob Z. Smith <[email protected]> wrote:
>>
>>
>>
>> I’ve found it very easy and efficient to do that sort of stuff with
‘inotify’ where you can pretty much instantly call an application/script
based on system file-open/close/modify/read event and don’t need to do
any scanning. It only works on files or directories though – not a
hierarchical directory tree.
>>
>>
>>
>> Rgds,
>>
>> Rob.
>>
>>
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>
>> I think you would need to setup some file system notification thing to
find out if and when an xmp file changed. i have no idea how you would do
that if dt isn't running already. you would need to rescan all your xmp
(several 10k for me) at startup. unless there is a clever way to prune that
(hierarchical checksums with support in the file system..?) i think i'm not
willing to pay the performance penalty for this..
>>
>> you can also re-read the xmp as soon as an image turns up in lighttable
mode.. but that would not read new tags etc which potentially affect your
collection. so if you collect by a certain tag and load xmp on demand your
lighttable view might jump and keep adding/removing images.
>>
>> j.
>>
>>
>>
>>
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