org-before-export-hook is gone

#emacs

Struggled so long looking for a hook that would work like the old org-before-export-hook. Let this be a lesson: the Emacs hook system exists to let you subtly modify a function IN THE MIDDLE of its body. We never actually need simple before-hooks nor after-hooks (that's why it was removed), since in those cases it is always possible to use add-function or write a wrapper.

So where do you put that add-function? It depends… I use org-publish actually, so I wrap org-publish-org-to.