Re: Refer to the directory of the currently being loaded elisp script from within the Emacs lisp file itself.

[Hongyi Zhao]

On Thu, Jun 10, 2021 at 11:24 PM Óscar Fuentes <ofv@wanadoo.es> wrote:
>
> Hongyi Zhao <hongyi.zhao@gmail.com> writes:
>
> > I'm writing an elisp script which will load another file in the same
> > directory as this elisp script itself. The currently used command is
> > as follows:
> >
> > (load-file (expand-file-name
> > "~/Public/repo/github.com/DvdMgr/screen2latex.el.git/auth.el.gpg"))
> >
> > I want to construct the loaded file's path with the directory of the
> > elisp script itself, and I tried with the following but failed to do
> > the trick:
> >
> > (load-file (concat (file-name-directory load-file-name) "/auth.el.gpg"))
> >
> > Any hints/comments/suggestions for this problem?
>
> How do you know that it failed? Do you know for sure that the problem is
> related to the line of code shown above? Is auth.el.gpg a valid Elisp
> file?

Yes.

>
> BTW, the correct method for concatenating a directory and a file name is
>
> (load-file
>   (concat
>     (file-name-as-directory (file-name-directory load-file-name))
>     "auth.el.gpg"))

I tried you above code, it still doesn't work with the following info:

file-name-as-directory: Wrong type argument: stringp, nil [2 times]
Mark set

Regards
-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
NO. 552 North Gangtie Road, Xingtai, China