Thanks Gustavo, notes below:

On Sun, Oct 27, 2019 at 5:58 PM Gustavo Barros <gusbrs.2016@gmail.com>
wrote:

> Hi Nate,
>
> On Sun, Oct 27 2019, Nathan Neff wrote:
>
> > 1) My org-agenda-files show up in the list.  For example, foo.org and
> bar.org show up in the refile targets, despite the
> > function should return nil if a heading does not contain "Tasks"
>
> Curiously, I’ve been scratching this itch just today. So I might as well
> share.
>
> I presume you are using some of the specific values of
> `org-refile-use-outline-path'. If that’s the case, the file level as a
> refile target is hardcoded in `org-refile-get-targets', independently of
> what you might have in `org-refile-target-verify-function'.
>
> We have somewhere in `org-refile-get-targets':
>
> #+begin_src emacs-lisp
> (when (eq org-refile-use-outline-path 'file)
>   (push (list (file-name-nondirectory f) f nil nil) tgs))
> (when (eq org-refile-use-outline-path 'buffer-name)
>   (push (list (buffer-name (buffer-base-buffer)) f nil nil) tgs))
> (when (eq org-refile-use-outline-path 'full-file-path)
>   (push (list (file-truename (buffer-file-name (buffer-base-buffer))) f
> nil nil) tgs))
> #+end_src
>
> (`tgs' is the local variable which is collecting candidates for return).
>
> So, you might not use `org-refile-use-outline-path'. In this case the
> file info will be provided in the end of the refile target in
> parentheses (for targets outside the current buffer). And the file level
> will not be offered as a target.
>
> I, however like `org-refile-use-outline-path' and set it to 'file. But I
> also want to not be able to refile to the file level. So I advised
> `org-refile-get-targets' with:
>
> #+begin_src emacs-lisp
> (defun my/org-refile-filter-targets (orig-fun &rest args)
>   (let ((targets (apply orig-fun args))
>         (agenda-files (mapcar #'file-name-nondirectory org-agenda-files)))
>     (cl-remove-if (lambda (x)
>                     (member (car x) agenda-files))
>                   targets)))
> (advice-add 'org-refile-get-targets :around #'my/org-refile-filter-targets)
> #+end_src
>

> This presumes (setq org-refile-use-outline-path 'file). If you use any
> other value, you should probably adjust the function’s let bound
> variables for the case. This is also sort of hackish, so exert your own
> due caution in choosing whether or not to use it.
>

Indeed, I do use org-refile-use-outline-path 'file.  However, I have a
simple
directory specified for my org-agenda-files.  ("~/org-mode")  Therefore
I'll need to
do something a bit different.

It appears that your solution creates "targets" which is the targets list
of course, and
then it creates "agenda-files" which goes through org-agenda-files and
finds all the filenames
in org-agenda files.

It then mutates "targets", and removes any entry which is a filename from
org-agenda-files.

Since my org-agenda-files is simply ("~/org-mode/") none of the entries
match.

Hmmm, let me ask:  Why not simply go through targets and remove any entry
whose value is
a simple filename?  Why search org-agenda-files first?  This function also
assumes that the org-refile-targets
always comes from org-agenda-files.

I'll play with your function and see what I can get -- thank you for the
head-start!

Thanks
--Nate

>
> HTH,
> Gustavo.
>