Feature / documentation request : Adding (non-org !) meta-data to a Notebook (not cell !)

[bhugueney]

Thank you again for the great software : I am very happy to use it to generate runnable Notebooks from org files . Your assistance in my last issue was very helpful !

However, I now wish to not only generate a Rise presentation (which I already do, but have it launch automatically on start-up, which would require adding the "rise": {"autolaunch": true} metadata to the notebook. I could see how to add "org" metadata to a notebook, or any metadata to cells, but I I could not see how to add non-org (i.e. "rise") metadata to the Notebook. Am I being dense again or is it not (yet !) possible / documented ?

Again, thank you so much for enabling me to use emacs for writing Notebooks !

Best Regards.

[jkitchin]

There isn't currently a way to do this cleanly. You can do it like this with this advice I think.

(defun ipynb-rise-metadata (orig-func &rest args)
  (let ((data (apply orig-func args)))
    ;; now add the desired rise metadata. this is the second element
    (push '(rise . (("autolaunch" . "true"))) (cdr (second data)))
    data))

(advice-add 'ox-ipynb-export-to-buffer-data :around #'ipynb-rise-metadata )

I think this is close to what you want.

[bhugueney]

Thank you so much for your answer ! When I add your code to my publishing code, it does generates an autolaunch presentation.

However, I would rather be able to set this on a per notebook basis for the org file. I hope you won't mind if I leave this issue open so that I know where to look should you want to make it possible to add custom non-org notebook metadata from inside the .org source file.

Best Regards.

PS: I tried to have the code in the org file and it corrupted the notebook in the funniest way ☺.

[jkitchin]

I usually do this like this:

* build                                                            :noexport:

#+BEGIN_SRC emacs-lisp
(defun ipynb-rise-metadata (orig-func &rest args)
  (let ((data (apply orig-func args)))
    ;; now add the desired rise metadata. this is the second element
    (push '(rise . (("autolaunch" . "true"))) (cdr (second data)))
    data))

(progn
 (advice-add 'ox-ipynb-export-to-buffer-data :around #'ipynb-rise-metadata )
 (ox-ipynb-export-to-ipynb-file-and-open)
 (advice-remove 'ox-ipynb-export-to-buffer-data  #'ipynb-rise-metadata))
#+END_SRC

The section is not exported, and you manually run the build block, e.g. C-c C-c.

[bhugueney]

Thank you very much for the suggestion. However, my specific use case prevents me from any manual intervention in the build process as I make use of gitlab CI/CD to launch a build of the ipynb notebooks from the org sources in the repository. My goal is to enable students and co-workers (or anyboody !) to edit the org source files and regenerate to updated notebooks so that they don't strictly need to have emacs much less scimax to contribute.