Amusingly, this torrent still exists, but a) it’s from 2016 and b) it’s only a snapshot, but @siemvaessen might be happy to put another torrent online .
I imagine pyIATI has something to do this, but I’m not sure how long it takes to sort out python environments etc. I’m fully expecting @andylolz or @Herman to have some magic for this.
Serious suggestions though:
If you don’t mind the known issues with the IATI Datastore, or the existence of some wrapper XML including query metadata, this (theoretically) should do the trick as an ultra lazy approach: http://datastore.iatistandard.org/api/1/access/activity.xml?stream=true.
But if you want the exact published xml, this is possibly still the simplest / lowest friction way of downloading all of the datasets in their raw form: https://github.com/IATI/IATI-Registry-Refresher as far as I know.