[Digikam-devel] [digikam] [Bug 341772] Re-read metadata when image file timestamp has changed

[Kristian Karl]

https://bugs.kde.org/show_bug.cgi?id=341772

--- Comment #5 from Kristian Karl <kristian.hermann.karl at gmail.com> ---
Created attachment 91802
  --> https://bugs.kde.org/attachment.cgi?id=91802&action=edit
Patch with proposed fix and unit test

I realized that Digikam already detectes a change in an image file, using
either file size and/or date time modification.

However, in CollectionScanner, scanModifiedFile(fi, scanInfo) is used to
re-scan the file. That does not re-read metadata changes.
I tested using rescanFile(fi, scanInfo) instead, and that worked much better.

See:
https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/entry/libs/database/collectionscanner.cpp#L1202

The patch contains the proposed change, and a unit test to verify that metadata
changes 'outside' digikam is detected and re-read into the database.

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