Now that I've got org-caldav working (thanks David), here's a simple
helper function so that the files specified in org-agenda-files are
exported. I hope it works for others too!
(defun org-caldav-set-files-from-org-agenda ()
"Set `org-caldav-files' from the files specified in 'org-agenda-files'.
Ensure however that `org-caldav-inbox' is not included in the file list."
(let ((files (org-agenda-files)))
(when (member (file-truename org-caldav-inbox) files)
(setq files (delete (file-truename org-caldav-inbox) files)))
(setq org-caldav-files files)))
(org-caldav-set-files-from-org-agenda)
Stephen
