Re: adding custom package to guix home

[rdes]

Thank you Mr. Martinez,

I appreciate you taking the time to explain this to me.  Your recommendations 
resolved my issues.

- Ryan




Sent with Proton Mail secure email.

------- Original Message -------
On Sunday, June 26th, 2022 at 4:10 PM, Dominic Martinez <dom@dominicm.dev> 
wrote:


> rdes via help-guix@gnu.org writes:
>
> > Hello,
> >
> > I'm trying to add emacs-svg to my package list in my guix home 
> > configuration,
> > but I'm getting "no code for module (emacs-svg)" error when using 
> > use-module and
> > "guix home: error: emacs-svg: unknown package" error when I include the 
> > package
> > definition in the guix home configuration file.
> >
> > I've added my configuration files my snippets: 
> > https://gitlab.com/-/snippets/2360492.
>
>
> There's two separate problems here: trying to use 'emacs-svg' as a
> specification, and Guile module loading.
>
> `specification->package' turns a specification (what you type into 'guix
>
> install') into a package (the actual variable that contains the
> package). However, it only works on packages that are part of your Guix
> installation. Instead, you should directly add the variable you defined
> to the packages list:
>
> #+begin_src scheme
> (home-environment
> (packages
> (cons*
> emacs-svg
> (map specification->package...))))
>
> #+end_src
>
> As for why `#:use-module (emacs-svg)' didn't work, I'm assuming you didn't 
> augment Guile's load path. You can augment the load path either through an 
> environment variable, or for a specific Guix command via the command line: 
> #+begin_src shell GUILE_LOAD_PATH=$GUILE_LOAD_PATH:path/to/module/dir guix 
> ... # or guix -L path/to/module/dir ... #+end_src You also shouldn't put` 
> emacs-svg' as the last line in your module. That
> pattern is useful when developing a package (e.g. with a 'guix.scm' file
> in your repo), but modules should not evaluate to a value.