Fix icalendar export

global.org

@@ -2027,11 +2027,34 @@
         (org-narrow-to-subtree)
         (let ((org-icalendar-scheduled-summary-prefix "")
               (org-icalendar-use-scheduled '(event-if-todo))
-              (org-icalendar-include-todo) nil)
+              (org-icalendar-include-todo nil))
           (shell-command (concat "~/scripts/push-to-nextcloud-cal.sh "
                                  (org-icalendar-export-to-ics))))
         (widen))
     #+end_src
+*** Make reftex work in org-edit
+    RefTeχ refuses to work when the buffer is not visiting a file.
+    Here is a tentative workaround:
+    - extract the file we are tangling to
+    - use it as TeX-master
+    - hijack ~buffer-file-name~ to return something non-nil; I would
+      rather hijack it locally (using cl-letf rather than advising the
+      function since other things would be confused by the advice)
+    #+begin_src emacs-lisp
+      (defun hijack-buffer-file-name (orig-fun &rest args)
+        (if (not (boundp 'reftex-workaround-enabled))
+            (apply orig-fun args)
+            (cl-letf (((symbol-function 'buffer-file-name) (lambda (&optional buffer) "fragment.tex")))
+              (apply orig-fun args))))
+
+      (advice-add 'reftex-label  :around
+                  #'hijack-buffer-file-name)
+      (advice-add 'reftex-reference :around
+                    #'hijack-buffer-file-name)
+
+
+    #+end_src
+
 ** elisp
 *** Paredit
     #+begin_src emacs-lisp