Migration script

migrate.el

;;; THIS MIGRATION SCRIPT IS NOW DEPRECATED.
;;; PLEASE USE M-x org-roam-migrate-wizard, FOUND WITHIN THE ORG-ROAM REPO ITSELF.

@JonathanReeve: to make it work, I've ran step 1 in V1 and then steps 2 and 3 in V2.
Then I had to fix all of the files with ROAM_ALIASES by hand because they were borked. I didn't have many so I did it manually.
It was transforming something like:

#+title: PostgreSQL
#+created: [2020-04-03 17:22]
#+roam_alias: Postgres
- related :: [[file:databases.org][Databases]]

into something similar to:

:PROPERTIES:
:ID:       b6d673e3-d117-4bbe-806c-817effcb6050
:ROAM_ALIASES: [[file:databases.org][Databases]]
:END:
#+title: PostgreSQL
#+created: [2020-04-03 17:22]
#+roam_alias: 

Same thing with ROAM_KEY/ ROAM_REFS.

M-x-evaluate-buffer should be M-x eval-buffer.

Confirmed

When I eval step 1, I got user-error: Before first headline at position 1 in buffer conditional_random_fields.org. Any idea?

I get some errors with titles that use entities, such as \delta or \endash.

Here's the error message I get:

Debugger entered--Lisp error: (error "Invalid use of ‘\\’ in replacement text")
  vulpea-buffer-prop-set("title" "dosSantos2010: Glacial\\textendash interglacial var...")
  vulpea-buffer-title-set("dosSantos2010: Glacial\\textendash interglacial var...")
  vulpea-migrate-buffer()
  (save-current-buffer (set-buffer (find-file f)) (message "migrating %s" f) (vulpea-migrate-buffer))
  (with-current-buffer (find-file f) (message "migrating %s" f) (vulpea-migrate-buffer))
  (while --dolist-tail-- (setq f (car --dolist-tail--)) (with-current-buffer (find-file f) (message "migrating %s" f) (vulpea-migrate-buffer)) (setq --dolist-tail-- (cdr --dolist-tail--)))
  (let ((--dolist-tail-- (org-roam--list-all-files)) f) (while --dolist-tail-- (setq f (car --dolist-tail--)) (with-current-buffer (find-file f) (message "migrating %s" f) (vulpea-migrate-buffer)) (setq --dolist-tail-- (cdr --dolist-tail--))))
  (dolist (f (org-roam--list-all-files)) (with-current-buffer (find-file f) (message "migrating %s" f) (vulpea-migrate-buffer)))
  vulpea-migrate-db()
  eval-expression((vulpea-migrate-db) nil nil 127)
  funcall-interactively(eval-expression (vulpea-migrate-db) nil nil 127)
  command-execute(eval-expression)

(if I just replace the offending entity with the corresponding utf-8 symbol and run it again, it appears to continue nicely).