For custom processing, in the lua file I do the usual
for i_, i in ipairs(dt.gui.action_images) do
exporting the image is easy, but to get the full set of metadata, I want to use exiftool not only on the raw file, but on the xmp file, too. This is not a problem as long as the selected image is not a duplicate, because I can simply concatenate the raw filename and ‘.xmp’
But in the case of a duplicate, how can I retrieve the relevant xmp filename?