Re: Elisp - Store path only once

[wael-zwaiter]

How can enable Rainbow Delimiters on all files (not just programming
language files)?

> Sent: Saturday, January 09, 2021 at 11:53 PM
> From: "Omar Polo" <op@omarpolo.com>
> To: wael-zwaiter@gmx.com
> Cc: help-gnu-emacs@gnu.org
> Subject: Re: Elisp - Store path only once
>
> On 9 January 2021 12:30:57 CET, wael-zwaiter@gmx.com wrote:
> >Am unsure whether I can  require on the elisp files I have written.
> >
> >(require 'g-eshell)
> >(require 'g-utils)
> >
> >Aw getting confused, as I was simply doing
> >
> >(setq g-eshell
> >   "/home/bard/Genadm/build/gadin-1.0/elisp/g-eshell.el")
> >
> >(setq g-utils
> >   "/home/bard/Genadm/build/gadin-1.0/elisp/g-utils.el")
> >
> >(load 'g-eshell)
> >(load 'g-utils)
> >
> >> Sent: Saturday, January 09, 2021 at 10:54 PM
> >> From: "Omar Polo" <op@omarpolo.com>
> >> To: wael-zwaiter@gmx.com
> >> Cc: help-gnu-emacs@gnu.org
> >> Subject: Re: Elisp - Store path only once
> >>
> >>
> >> wael-zwaiter@gmx.com writes:
> >>
> >> > I have a lot of customisation files for emacs stored in the
> >> > directory /home/bard/Genadm/build/gadin-1.0/elisp/.
> >> >
> >> > Would like to store the path so that I can define it only once.
> >> > How can I do this in Emacs Lisp.
> >> >
> >> >
> >> >   (setq g-eshell
> >> >      "/home/bard/Genadm/build/gadin-1.0/elisp/g-eshell.el")
> >> >
> >> >   (setq g-utils
> >> >      "/home/bard/Genadm/build/gadin-1.0/elisp/g-utils.el")
> >>
> >> Couldn't you just
> >>
> >>     (add-to-list 'load-path
> >"/home/bard/Genadm/build/gadin-1.0/elisp")
> >>
> >> and then
> >>
> >>     (require 'g-eshell)
> >>     (require 'g-utils)
> >>
> >> when needed?
> >>
> >>
>
> you should definitely check the manual for more detailed information, but the 
> gist of it is that when you
>
> (require 'something)
>
> emacs will search for something.el in all the directories listed in 
> load-path.  This is like the UNIX $PATH variable if you're familiar, only for 
> elisp files instead.
>
> Now, you can require any file, given that they contains a provide at the 
> bottom.  i.e. your g-eshell.el should ends with
>
> (provide 'g-shell)
>
> this way you can avoid typing the full path every time, and is also easier to 
> move those files without braking you configuration.
>
> (Also, require is better than load because it won't evaluate the same file 
> two times)
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>