There's an option on lighttable under history stack "write sidecar files",
that should do it.

El dom., 23 dic. 2018 a las 20:54, I. Ivanov (<[email protected]>) escribió:

>
> On 2018-12-23 15:28, Patrick Shanahan wrote:
> > * I. Ivanov <[email protected]> [12-23-18 17:57]:
> >> Hi Guys,
> >>
> >> I had an unfortunate event to clear metadata from about 600 images (it
> took
> >> me close to 3h to restore as much as I could).
> >>
> >> Because there is no "undo" this brings me to the question.
> >>
> >> What can I do to have a good backup for such cases? I can backup easily
> (and
> >> very frequent) "/home/myhome/.config/darktable"
> >>
> >> However - if metadata (or tags) happen to be deleted by accident and I
> >> restore the DB - how can I push the DB to re populate the XMP files?
> > perhaps (not tried), remove the images from the db
> >                       import the images again
> > will/should read the accompaning xmp files
> >
> > or, maybe just telling dt to read the xmp files will work
>
> Not sure if I expressed myself correctly... If I backup
>
> "/home/myhome/.config/darktable" then data.db and library.db would be the
> "correct" ones.
> To my best knowledge - when Darktable works - it uses data from the .DB
> files (not from .XMP) and when the file changes - it populates the data to
> .XMP
>
> The reason why I am trying to backup the database (as an opposite to the
> .XMP) is because I can easily backup the DB in the cloud with multiple
> versions (and restore what I need). I wouldn't be able to easily restore
> the .XMP files (to the belonging locations) even if I manage to accelerate
> the frequency of their backups.
>
> DT can check for changed .XMP files but I am under impression that the
> checking and populating of changes is unidirectional - XMP to DB (not DB to
> XMP). Is it possible at all to push what is stored in the .DB files to the
> .XMP? For example - can I delete the .XMP files and rely that the
> information stored in the .DB would create accurate .XMP for all files that
> are missing the .XMP?
>
> Regards,
>
> B
>
> >
>
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