From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marco Wahl <marcowahlsoft@gmail.com>
Subject: Re: Bug: :completion-function no longer takes a lambda [9.3.6
 (9.3.6-elpa @ /home/arne/.guix-profile/share/emacs/site-lisp/)]
Date: Mon, 30 Mar 2020 11:03:05 +0200
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In-Reply-To: <874ku6coou.fsf@web.de> (Arne Babenhauserheide's message of "Mon,
 30 Mar 2020 09:00:17 +0200")
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To: Arne Babenhauserheide <arne_bab@web.de>
Cc: emacs-orgmode@gnu.org

Arne Babenhauserheide <arne_bab@web.de> writes:

> Hi,
>
> I set up my publishing workflow with org-project using lambdas in the
> :completion-function, but I now receive errors when I try to publish.
>
> Example Setup:
>
> (setq org-publish-project-alist
>       '(("guile-basics"
>          :base-directory "~/eigenes/py2guile"
>          :publishing-directory (concat private-publish-ftp-proj "guile-basics/")
>          :base-extension "org"
>          :publishing-function org-html-publish-to-html
>          :completion-function (lambda () (private-publish-rename-to-index 
>                                            (concat private-publish-ftp-proj "guile-basics/") 
>                                            "guile-basics.html"))
>          :section-numbers nil
>          :with-toc t
>          :html-preamble t
>          :exclude ".*"
>          :include ["guile-basics.org"])))
>         
>
> This used to work, but now it breaks with
>
>     org-publish-projects: Invalid function: lambda

An additional pair of parens should help as workaround.  Concretely try

    :completion-function ((lambda () (private-publish-rename-to-index 
                                            (concat private-publish-ftp-proj "guile-basics/") 
                                            "guile-basics.html")))

This works since it's possible to use a list of functions also.

I'll commit a fix against master in a second to be able to use a lambda
instead of a list containing one lambda.


Thanks,
-- Marco